Method and device for control of channel power
Abstract
An apparatus and a method enabling increased data throughput on the reverse link are disclosed.
Term
No projected expiry on record.
- Priority
- Filed
- Granted
- Today
34 claims: 3 independent, 31 dependent
- 1Device for control channel capacity containing:1. Пристрій для керування потужністю каналу, що містить: processor;and процесор;і storage environment connected to the processor, and contains a set of instructions that are executed processor for: запам'ятовуюче середовище, зв'язане з процесором, і що містить набір інструкцій, що виконуються процесором, для: definition of transmit power the first channel;визначення потужності передачі першого каналу;definition of the quality and class provided data services (QoS) provided by the channel;визначення якості і класу надаваних послуг передачі даних (QoS), що надаються каналом;determination of power ratio transmitting the channel to the first channel for the data rate at which it will be to transfer the channel according to QoS;визначення відношення потужності передачі каналу до першого каналу для швидкості передачі даних, на якій буде здійснюватися передача по каналу відповідно до QoS;tune the relationship transmission power in accordance with channel quality metrics;and підстроювання відношення потужності передачі відповідно до метрики якості каналу;і power transfer calculation channel according to the tuned transmission power ratio. обчислення потужності передачі каналу відповідно до підстроєного відношення потужності передачі.
- 18Power management mode a channel comprising the steps of:18. Спосіб керування потужністю каналу, що включає етапи, на яких: determine the transmission power the first channel;визначають потужність передачі першого каналу;determine the quality and the class Provided data services (QoS) provided by the channel;визначають якість і клас надаваних послуг передачі даних (QoS), які надаються каналом;determine the ratio of power transmitting the channel to the first channel for the data rate at which it will be to transfer the channel according to QoS;визначають відношення потужності передачі каналу до першого каналу для швидкості передачі даних, на якій буде здійснюватися передача по каналу відповідно до QoS;adjust the power ratio transmission in accordance with the quality metric of the channel;and підстроюють відношення потужності передачі відповідно до метрики якості каналу;і calculate transmission power channel according to the tuned transmission power ratio. обчислюють потужність передачі каналу відповідно до підстроєного відношення потужності передачі.
- 34Method according to item 19, in which the second channel is a data request channel;and the third channel is the second one traffic channel 34. Спосіб за п. 19, в якому другий канал є каналом запиту даних;і третій канал є другим каналом трафіка.
Independent claims3
578 paragraphs in 27 sections, as filed
UKRAINE
(19) υΑ (11) 85552 (13) C2
(51) IPC (2009)
H04a 13 / 02H04a 9 / 00H04B 7 / 26H04B 7/005N04B 25/02
MINISTRY OF EDUCATION SCIENCE OF UKRAINE
STATE DEPARTMENT OF INTELLECTUAL PROPERTY
DESCRIPTION
TO THE INVENTORY PATENT
(54) METHOD AND DEVICE FOR MANAGEMENT OF THE CHANNEL PERFORMANCE
(21) a200509592
(22) 11.03.2004
(24) Feb 10, 2009
(86) PCT / 32004/007712, 11.03.2004
(31) 10 / 389,091
(32) 13.03.2003
(33) from
(31) 10 / 389,170
(32) 13.03.2003
(33) from
(31) 10 / 389,656
(32) 13.03.2003
(33) from
(31) 10 / 389,716
(32) 13.03.2003
(33) from
(46) Feb 10, 2009, No.3, 2009
(72) ATTAR RASHID AKHMED, BHUSHAN NAGA, AG-RAVAL AVNISH
(73) QUALCOM INCORPORATE
(56) HR 010162674, April 28, 1996
HR 002077020, September 22, 1996
EP 0568291 A 03.11.1993
from 2002154610 A1.24.10.2002
(57) 1. Device for controlling the power of a channel comprising:
processor; and
a storage medium connected to the processor and containing a set of instructions that the processor delivers for:
determination of the power of the transmission of the first channel, determination of the quality and class of services provided by the data transfer (OOS) provided by the channel; determining the ratio of the channel transmit power to the first channel for the data transmission rate, at which the transfer will be made in accordance with OAZ ;
adjusting the ratio of transmission power in accordance with the quality metric of the channel; and calculating the transmission capacity of the channel in accordance with the adjusted power transmission ratio.
2. The apparatus of claim 1, wherein the processor determines the first channel's capacity by executing a set of instructions for:
definition of the control point in accordance with the quality metrics of the second channel and the detected availability of user data in the third channel; and increase the transmission power value, if the current power transfer value is less than at a certain control point.
3. The apparatus of claim 2, wherein the processor executes a set of instructions for:
reduce the transmission power value, if the current power transfer value is less than at a certain control point.
4. The apparatus of claim 2, wherein the processor defines a control point according to the quality metric of the second channel and detects the availability of custom data in the third channel by executing a set of instructions for:
determining the quality metric of the second channel; detecting the availability of custom data in the third channel;
decoding custom data if the availability of custom data in the third channel wasdetected; and
definition of the reference point in accordance with the quality metrics and the results of the detection.
5. The apparatus of claim 4, wherein the processor determines the quality of the second channel by executing a set of instructions for:
Determine the rate of abrasion of the second channel.
6. The apparatus of claim 4, wherein the processor detects the validity of the user data in the third channel by using a set of instructions for: constructing a set of hypotheses according to the speed of the control data and the content of the control data; decoding the control data according to each set of hypotheses;
the choice of the most probable hypothesis according to
metrics used to test hypotheses; and
declaration of availability of custom data
if the chosen hypothesis is greater than the first threshold
value.
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7. The apparatus of claim 4, wherein the processor decodes the corundum data if the presence of user data in the third channel has been detected by executing a set of instructions for: decoding user data multiplexed with code division (UE) , from the third channel.
8. The apparatus of claim 4, wherein the processor defines a control point in accordance with the quality metric and the detecting results by executing a set of instructions for:
reduction of the reference point if the metric is less than the second threshold value and the decoding has been successful; and
an increase in the control point if the metric is more than the second threshold and decoding was unsuccessful;
when the availability of custom data was detected.
9. The apparatus of claim 4, wherein the processor defines a control point according to the quality metric and the detecting results by executing a set of instructions for:
reduction of the reference point if the metric is less than the second threshold value and the decoding has been successful; and
an increase in the control point if the metric is greater than the second threshold, when the availability of custom data has not been de-tected.
10. The device of claim 2, wherein the processor adjusts the transmission power ratio according to the metric of the channel quality by executing a set of instructions for:
an increase in the ratio of transmission power to the first certain value, when the first number of repetitive transmissions of user data on the channel was unsuccessful.
11. The apparatus of claim 2, wherein the processor adjusts the transmission power ratio according to the metric of the channel quality by executing a set of instructions for:
reduction of the ratio of the power of the transmission of a certain amount of value, when the user datawere successfully transmitted on the channel for another certain number of retransmissions.
12. The apparatus of claim 2, wherein the processor adjusts the transmission power ratio according to the metric of the channel quality by executing a set of instructions for:
determination of the excess differential over the heat transfer between the transmission interval of the first channel and the channel transmission interval;
tuning of the differential of overheat excess; and
adjusting the ratio of transmission power in accordance with the tuned differential of the excess over the thermal.
13. The apparatus of claim 12, wherein the processor detects a differential excess of a thermal difference between the second channel of transmitting the first channel and the interval of the channel transmission by executing a set of instructions for:
measurement of the excess over the thermal in the inter-transmission of the first channel;
measurement of the excess over the thermal in the channel transfer channel; and calculating the difference between the heat transfer over the heat in the transmission interval of the first channel and the excess of the thermal time interval of the channel transmission.
14. The apparatus of claim 12, wherein the processor detects a differential excess of a thermal difference between the second channel of transmitting the first channel and the interval of the channel transmission by executing a set of instructions for:
estimates of the excess differential over the thermal.
15. The apparatus of claim 14, wherein the processor evaluates the di-ference excess of heat over the help of executing a set of instructions for:
Estimates of the excess differential over the heat in accordance with the quality metric of the channel.
16. The device of claim 2, wherein the channel is the first channel of the traffic; and
where the first channel is a control channel.
17. The apparatus of claim 3, wherein the second channel is a request data channel; and
where the third channel is the second traffic channel.
18. A method for controlling the power of a channel, comprising the steps of:
determine the transmit power of the first channel, determine the quality and class of the data transfer services provided by the channel; determine the ratio of the channel transmit power to the first channel for the data transmission rate at which the channel transmission will be performed according to OO;
adjust the ratio of the transmit power to the quality metric of the channel; and calculate the power of the channel transmission, respectively, to the adjusted power transmission ratio.
19. The method of claim 18, wherein, in determining the power of the first channel:
define a control point in accordance with the metric quality of the second channel and the detected availability of user data in the third channel; and increase the transmission power value, if the current value of transmission power is less than at a certain control point.
20. The method of claim 19, further comprising a step at which a transmit power value is reduced, if the current transmit power value is smaller than at a particular control point.
21. The method of claim 19, wherein, when determining a reference point according to the quality metric of the second channel and detecting the presence of custom data in the third channel:
determine the quality metric of the second channel; detect the availability of user data in the third channel;
decode user data if the presence of the user data in the third channel has been detected; and
determine the control point in accordance with the metrics of quality and the results of the detection.
22. The method of claim 21, wherein, when determining the metrics of the quality of the second channel, determine the speed of the second channel.
23. The method of claim 21, wherein, in detecting the availability of custom data in the third channel:
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construct a set of hypotheses in accordance with the speedcontrol data and the content of control data; decoding control data in accordance with each set of hypotheses;
choose the most probable hypothesis according to the metric used to test the hypotheses; Declare the availability of user data if the chosen hypothesis is greater than the first threshold value.
24. The method of claim 21, wherein the processor decodes the user data if the presence of custom data in the third channel has been detected by helping to execute a set of instructions for: decoding custom data, code-division multiplexed (COM), from the third th channel.
25. The method of claim 21, wherein, in determining a reference point in accordance with the quality metric and the detecting results:
reduce the control point if the quality metric is smaller than the second threshold value and the decoding has been successful; and
increase the control point, if the quality metric is greater than the second threshold value, and the decoding was unsuccessful;
when the availability of custom data was detected.
26. The method of claim 21, wherein, in determining a reference point in accordance with the quality metric and the detecting results:
reduce the control point if the quality metric is smaller than the second threshold value and the decoding has been successful; and
increase the control point if the quality metric is greater than the second threshold, when the availability of custom data has not been de-tected.
27. The method of claim 18, wherein, when adjusting the transmission power transfer according to the channel meter quality:
increase the ratio of transmission power to the first certain value, when the first number of repetitive transmissions of user data on the channel was unsuccessful.
28. The method of claim 18, wherein, when adjusting the transmit power transfer according to the channel meter quality:
reduce the ratio of the power of the transmission of a certain amount of value, when the user datawere successfully transmitted on the channel for another certain number of retransmissions.
29. The method of claim 18, wherein, when adjusting the transmit power transfer according to the channel meter quality:
determine the differential of excess over heat transfer between the interval of transmission of the first channel and the channel transmission time;
adjust the excess differential over the heat; and
adjust the ratio of the transmission power from-to the tuned differential of the excess over the thermal.
30. The method of claim 29, wherein, in determining the differential carrier over the thermal one between the interval of transmission of the first channel and the channel transfer interval:
measure the excess over the thermal in the interval transmissions of the first channel;
measure the excess over the thermal in the intervaltransmission of the channel; and calculate the difference between the increase over the thermal in the transmission interval of the first channel and the excess over the thermal intermediate interval of the channel transmission.
31. The method of claim 29, wherein, in determining the differeference over the thermal transition between the interval of transmission of the first channel and the channel transfer interval, the excess differential is estimated over the thermal one.
32. The method of claim 31, wherein, in evaluating the differential-la-excess over the thermal energy, the differential density exceeds the thermal energy corresponding to the channel's quality metametric.
33. The method of claim 18, wherein the channel is the first channel of the traffic; and the first channel is a control channel.
34. The method of claim 19, wherein the second channel is a data request channel; and the third channel is the second channeltraff.
The present invention relates to the transmission of information in a wired or wireless communications system. In particular, the present invention relates to a method and system for transmitting data in such a communication system.
Communication systems have been developed in order to make possible the transfer of information signals from the station of departure to the physically minus station of destination. When transmitting the information signal from the sending station by the communication channel, the information signal is initially converted into a form suitable for efficient transmission over the communication channel. The transformation or modulation of the information signal relates to the change in the carrier wave parameter in accordance with the information signal, so that the spectrum of the re-engaging modulated carrier wave is limited within the width of the bandwidth
communication channel. At the destination station, the primaryinformation signal is restored from the module-wired carrier wave, obtained by the communication channel. In general, such a recovery is carried out with the help of the process of reverse the modulation process applied at the sending station.
Modulation also simplifies multiple access, that is, the simultaneous transmission and / or reception of multiple signals over the common communication channel. In this field of technology, several techniques of multiple access are known, such as time-division multiple access (TOMA) or multiple-frequency access (EMA) access. Another type of method of working access is a system with a broad-spectrum multi-access with code division channel (SOMA), which is in line with the standard, "TIA / EIA / IZ-95 MOJIYEE ZIIAYOL-WAVE ZIIAILSOTRAIYIIIIV ZIalbagb Tog Oiai-Mobe Shbe- Valb
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ZrheasI ZresYihyt SeIIyIah ZuzYiet "hereinafter kinase-vayetsya standards with 95. SOMAmetodyk use of a communication system with multiple dostupomrozkryte [in №4,901,307 US patent application, entitled" ZRREAO ZRESTRBIM MIL_TIRI_E-ASSEZZ SOMMyЫ1SAT1OЫ ZUZTEM yZIIChSZATEShTE agents TERREZTRIAB REREATERZ "and vzayavtsi US Patent No. 5,103,459, entitled "IMPLEMENTATION OF METHODOLOGY FOR THE CIRCULATION OF THE CIRCULATION OF THE EQUIPMENT OF THE SEMICONDUCTOR", which belongs to the applicant.
Multiple-access communication systems may be wired or wireless, and may transmit language traffic and / or data flow. In the case of a communication system that transmits both speech traffic and data flow, there is a system corresponding to the standard IZ-95, which determines the transfer of speech trafficking and data flow through the communication channel. A method for transmitting data in a coded frame of a fixed length channel is described in detail in [US Patent Application No. 5,504,773, entitled "METHOD OF ANALYSIS OF THE TERRITORY OF THERAPEUTIC CERTIFICATE", belonging to this applicant. According to the IZ-95 standard, data stream or linguistic traffic are divided into coded frames of a channel of 20 milliseconds with a data rate of up to 14.4 KBytes. An additive example of the communication system that transmits both voice traffic and data stream is the communication system corresponding to the project "
The term base station means the essence of the network access that the subscriber stations communicate with. With reference to the standard IZ-856, the base station is also called an access point. The term cell refers to the geographic coverage area or coverage area of the base station served by the base station, depending on the contextual text in which the term is used.Terminal sector means a segment of a base station that is a segment of a geographic area that is serviced base station.
The term "subscriber station" is used here to indicate the entity with which the access network is connected. With reference to the standard IZ-856, the base station is also called the access terminal. The station of the subscriber can be mobile or stationary. A subscriber station may be any data device that binds to a noncontact channel or a conducting channel such as fiber optic or coaxial cables. In addition, the subscriber station may be any number of types of devices, including, but not limited to, the construct card, flash card, external or internal modem, wireless or wired phone. The subscriber's subscription, which is in the process of establishing an active connection to the transmission channel with the base station, say that it is in a state of communication. Subscriber station
which has established an active connection to the transfer channel, is called the active station of the subscriber, and its name is called the state of transmission.
The term "access network" means a plurality of at least one base station (VZ) and one or more base station controllers. Network access transmits information signals between multiple subscriber stations. The access network may be additionally connected to additional networks over the network, such as a corporate LAN or the Internet, and can transmit information signals between each base station and such external networks.
In the wireless communication system described above with multiple access, the connection between user-us is carried out through one or more base stations. The term user means both living and nonliving entities. The first user at a single wireless subscriber station is connected by a friend at the second wireless station of the subscriber by transmitting the information signal on the reverse link to the base station. The base station receives the information signal and transmits the information signal on the forward link to the second station subscriber. If the other subscriber station is outside the area served by the base station, the base station sends the data to another base station in the zone of service of which is the second station of the subscriber. Then, The second base station transmitsinformation signal on the direct channel of the second station subscriber station. The term "direct link" refers to the transmission from the base station of the subscriber's subscriber station and the term reverse communication channel refers to the transmission from the unsupervised station to the base station. In a similar way, a communication session between the first user of the wireless station of the subscriber station and the second user of the terrestrial communication station can be carried out. The base station receives data from the first user of the wireless station of the subscriber via the roaming communication channel and directs the data through the co-mutated telephone network of general use (RZT ^ to the second user of the ground telecommunication station.In many communication systems, for example, , IZ-95, SH-SUMA and IZ-2000, direct call-in '
The study of services for transmitting only voice traffic and data transfer services only to the data stream revealed some significant differences between these two-dimensional services. One difference is the delay in delivering the amount of information. ServicesTransmission of voice traffic imposes strict andfixed requirements for delays. As a rule, the full unilateral delay of a predetermined amount of voice traffic information, which is called a voice frame, must be less than 100 ms. In contrast, a one-way data retention delay may be a variable parameter used to optimize the efficiency of data transfer services provided by the communication system. For example, it may be used multi-user diversity, delay in data transfer to better conditions,
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more efficient methods of encoding with error correction, which require considerably greater delays than delays that can allow listening to voice traffic and other techniques. A prominent efficient coding scheme for data is disclosed [in US patent application No. 5, 933, 462 entitled "3ΟΕΤ ϋΕΟΙ3ΙΟΝ OyTRyTϋΕΟΟϋΕΡ ΕΟΡ ϋΕΟΟϋΙΝΟ ΟΟΝνθΙ_υΤΙΟΝΑΙ_Ι_ΥΕΝΟΟϋΕϋ ΟΟΙϋΕΜΟΡΙϋ3", November 1996, to be published Aug. 3, 1999, zareyest-named Rowan Zipbyzpauapa EI AI.] and nalezhytdanomu applicant.
Another significant difference between voice traffic transfer services and data traffic services is that the first requires a fixed and general category of service (OO3) for all users. As a rule, for digital communication systems, providing voice-telephony services, this requirement turns into the requirement of a fixed and equal transmission speed for all users and the requirement of the maximum allowable value for the frequency of errors in voice frames. On the other hand, the category of service (ΟΟ3) for data services may differ from user to user and can be a variable parameter, optimization which increases the overall efficiency of the data transfer service provided by the communication system. Service category (ΟΟ3) for the data transfer service provided by the communication system, as a rule, is defined as the general delay caused by the forwarding of a predetermined amount of information to the data stream, such as a data packet. Term package means a group of bits, including data (utility load) and control elements, arranged in a certain format. The control elements include, for example, a header, a quality metric, and other elements known to a person skilled in the art. Metriccapacity includes, for example, control by means ofcyclical excess code, parity bits and otherelements known to a person skilled in the art. known to a person skilled in the art. Metriccapacity includes, for example, control by means ofcyclical excess code, parity bits and otherelements known to a person skilled in the art. known to a person skilled in the art. Metriccapacity includes, for example, control by means ofcyclical excess code, parity bits and otherelements known to a person skilled in the art.
Another significant difference between the services of non-voice voice stream and data transmission services is the fact that the first requires a reliable communication channel. When the station of the subscriber, which exchanges voice traffic with the first base station, moves to the table limit served by the first base station, the subscriber station enters the overlap area with another cell served by the second base station. The subscriber station in such a zone establishes a session of voice traffic transmission with the base station, while supporting the session of transmission of voice traffic with the first base station. In the process of such a simultaneous transfer, the subscriber station receives a signal that does not share information from both base stations. Similarly, both base stations also receive signals that bear the information of the subscriber's landings.
Such simultaneous communication sessions are called a soft-line call from one base station to another in the process of moving the user. When, subsequently, the subscriber station leaves the cell, which is served by the first base station, and the
tracks a session with the transmission of a voice tray with the first base station, the subscriber station continues the session with the transmission of voice traffic with the second base station. Because the soft transfer of a call from one base station to another during the movement of the user is the mechanism of "do to the cliff", the soft-to-call transfer from one base station to another in the process of user movement minimizes the probability of the break of the call. Method and system forthe connection with a subscriber station cherezbilsh than one base station during m'yakoyiperedachi call from one base station to another during the movement of the user disclosed [US vpatenti №5,267,261, entitled "ΜοΒΙΙ_ΕΛ33Ι3ΤΕϋ 3ΟΕΤ ΗΛΝϋ-ΟΕΕ ΙΝ A ΟϋΜΛΟΕΙ_Ι_υΐ_ΛΡ ΤΕΙ_ΕΡΗΟΝΕ 3Υ3ΤΕΜ" ] issued to this applicant.
Milder call transfer from one base station to another in the process of moving the user is similar to the process in which the session connection occurs due to at least two sectors multisectoral base station. The process of increasing the call transfer from one base station to another during the movement of the user is described in detail [in US patent application No. 5,933,787 of December 11, 1995, entitled "ΜΕΤΗΟΥ ΑΝϋ ΑΡΡΑΡΑΤυ3 ΕΟΡ ΡΕΡΕΟΡΜΙΝΟΗΜΝΝ-ΟΕΕ ΒΕΤΜΕΕΝ 3ΕΟΤΟΡ3 ΟΕ Α ΟΟΜΜΟΝΒΑ3Ε 3ΤΑΤΙΟΝ ", published August 3, 1999, registered in SiIiOsepe ea ai.] belonging to the given applicant. Thus, both soft and milder call transfer from one base station to another in the process of user movement lead to excessive transmission from two and two more ba stations to improve reliability.
This additional reliability is not so important for data transmission sessions, since data packets received with error may be retransmitted. Important parameters for data services are the latency in the transmissions required for the transmission of data packets, and the average bandwidth of the communication system for the transmission of data flow. Delay in the transmission does not have the same effect on the transmission of data that it has in the transmission of voice, but transmission delay is an important metric to measure the quality of the system communication for data transmission. Average throughput is the measure of the efficiency of transmission data for the communication system. Because of the low demands of transmittance, transmission power and resources used to support m '
The situation is different in case of reverse link. Several base stations may receive a signal transmitted by the subscriber station. Because the fact that the re-transmission of packets from the subscriber's station requires additional power from an interconnected power supply (battery), it may be efficiently support the soft transfer of the call from
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one base station to another in the process of user transfer on the reverse link, and the allocation of resources to several base stations for receiving and processing packets of data transmitted from the subscriber station. Such use of soft transfer of a call from one base station to another in the process of user movement increases as cover and the capacity of the reverse link, as described [in the work of Apbgem b. Uriyagi and Keeyp ZSiyiyuvep: "Zoya Napbey Ehiepb SOMA Souhegadeapb Ipsgeaev I_ipp Sarusivu", IEEE Boigpai opSeisieeb Ahea ip Sottipisaiopov, Woi.12, Yo.8, Osioi 1994). The term soft transfer of a call from one base station to another in the process of user transfer means a communication session between the subscriber's state and two or more sectors, the sector of the decorates belongs to different cells. In the context of the standard IZ-95, the transmission on the reverse link channel is adopted by both sectors and transmission over a direct communication channel is performed simultaneously on two or more direct channels of communication sectors. In the context of the standard IZ-856, the non-editing of data on the direct link is performed not simultaneously between one of two or moresectors and the access terminal. In addition, this can be used for a softer transfer of a click from one base station to another in the process of user movement. The term of a softer transfer of a call from one base station to another in the process of movement of the user means a session communication between the subscriber station and two and moresectors, where each sector belongs to the same cell. In the context of the IZ-95 standard, transmission over the back channel is received by both sectors, and the transmission on the directcommunication channel is performed simultaneously on one or two or more direct channels of communication sectors. In the context of IZ-856 standard, data transmission to a forward link is not performed simultaneously by one of two or more sectors and the access terminal.
It is well known that the quality and efficiency of data transfer in wireless communication systems depends on the state of the communication channel between the initial ter-minal and the destination terminal. Such a state, evaluated by, for example, the relation of signal to interference and noise (3YNP), is inclined to the influence of several factors, for example, the loss of the route, and changes in the losses on the route for the station station or within the coverage area of the base station, in-terence from other subscriber stations, both from the cell, and from other cells, interference from other base stations, and other factors known to a person skilled in the art. In order to maintain a certain level of service under the influence of changing channels of the channel, TOMA and ROMA systems tend to split users at different frequency and / or time intervals and support multi-frequency use to reduce interference. Repeated use of frequencies divides the available spectrum into a set of time-one ones. This cell uses frequencies only from one set; Cells directly attached to this cell may not use the frequency from the same set. In COMA systems,
The clock frequency is used in each cell of the communication system, thus improving overall efficiency. Interference is reduced by using other techniques, for example, orthogonal coding, controlled power transmit, variable data rate, and other techniques known to a person skilled in the art.
The aforementioned concepts were used in the development of a communication system for transmitting only data flow known as the communication system with a high-speed data transfer (YYY). Such a communication system is described in detail [in the US Patent Application No. 6, 574, 211 dated November 3, 1997, which is known in the process of simultaneous consideration, the statement "MGTECHNY ANNA ARRARATHYZ PORN NIENRAT OTA TRA MISZIO No., published on June 3, 2003, is registered at Rabouaï ee ai.] And belongs to the applicant. The UTS communication system topic is standardized as the industry standard TIA / EIA / IZ-856, which is hereinafter referred to as the IZ- 856
The IZ-856 standard defines a set of speeds for data transfers ranging from 38.4 kBr to 2.4MBrv, at which the access point (AP) can send data to the subscriber's station (access terminal). Since the access point is similar to the base station, terminology, which refers to cells and secto-rings, is the same as terminology in voice systems. According to IZ-856, the data to be transmitted by the forward link is divided into data packets and each packet is transmitted within one or more intervals (time intervals) to which the direct communication channel .
In each time interval, there is a data transfer from the access point to one and only one access terminal, located within the coverage area of the access point, at the maximum data transmission speed, which can be supported by the direct communication channel and the communication system. Terminal access is selected in accordance with the stan of the direct link of communication between the access point andterminal access. The states of the direct link depend on the interference and loss on the route between the access point and the access terminal, both of which vary with time. Losses on the route and changes in the route on the route are used by drawing up the schedule of gears of the access point in the time intervals, during which the states of the direct link of the access terminal to a particular access point meet a certain criterion,
By contrast, in accordance with the standard IZ-856, the data transmission on the reverse link communication is from a plurality of access terminals located within the coverage area of the access point. Moreover, because the antenna of the upstream terminal is omni-directional, any access terminal within the coverage area of the access point may receive these data transfers. Accordingly, transfers on
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the reverse link is subjected to several sources of interference: the upper channels with code split from other access terminals, transmission of data from access terminals located in the zone of coverage of the access point (access terminals in the same cell), and data transmission from access terminals located in the coverage area of other access points (access terminals from other cells). Multiplexing, in the general sense, means transmitting a plurality of data streams per communication channel.
When developing wireless data services, the accent was made to increase the bandwidth of the direct channel, in accordance with the model of In-ternet services; where the service provides a high level of data transmission in response to the nodes' requests. The direction of the server node is similar to the direct communication channel, which requires high throughput reliability, and requests node-server and / or data transfer are carried out with a lower bandwidth. However, current developments show an increase in applications with intensive use of reversecommunication channel, such as file transfer protocol (RTR), video conferencing, game or other serials with a constant data rate. Such applications require improved efficiency of the roll-over communication channel to achieve higher data rates, so that applications require a higher bandwidth backlink. Thus, in this field of technology there is a need to increase the throughput capacity of the reverse link, in the ideal case, in providing symmetric transmission capacities on the forward and reverse communication channels.
The implementation of the invented method and apparatus for transmitting on the reverse link communication discloses [US Patent Application Nos. 10 / 313,553 and 10 / 313,594, which are in the process of simultaneous consideration, entitled "METHOD OF ANALYSIS OF ROP YOUTH ΤΡΑΝ3ΜΙ33ΙΟΝ OOER AREUER3E MNK ΙΝ Α ΟΟΜΜυΝΙΟΑΉΟΝ 3Ó3TEM" dated December 6, 2002], issued to the successor of the given invention. The invented method and device for forwarding the reverse link may not be fully applicable to existing (traditional) communication systems due to budget-related problems, as explained in detail in the details below. Accordingly, the introduction of the invented method and device for the reverse link communication [US Patent Application Nos. 10 / 313,553 and 10 / 313,594] to traditional communication systems is a problem associated with the above pov with the problem budget, and with the common existence of stations subscribers, capable of receiving the invented back-to-back communication channel (new stations of the subscriber) and stations subscribers, able to receive only the reverse link of communication in accordance with standard Ι3-856 (Traditional subscribers stations ) In addition, the inventive means and device for transmitting back to the communication channel additionally create the need for a device and device for monitoring the power and value of the data rate.
Thus, it eliminates the need for devices and ways that make it possible to increase the space
The ability of the reverse link, taking into account the above problems.
This application is related to [US Patent Application No. 10 / 389,176 (Patent Attorney No. 030215, Issue 2), entitled "MeRiBiTiTiTiTiTiTiTiTiTiTiTiTiTiTiTiTiTiTiTiTiTiTiTiIiTiTiTiTiTi", dated March 13, 2003; US Patent Application No. 10 / 389,716 (Patent Attorney No. 030215, Issue 3) entitled "Mecob Auburn Tog Ewiataidipid Ragateiyogs OT Iiip Roh Yuia Tgapztiyuyuop ip aSottipisaiiiopu 3uuvet" dated March 13, 2003 and application to the US Patent, issued September 16, 2004 under No. 20040179494, entitled "Mekobapb 3vvlit Tog Roadeg Sopigoi ip a SottipisatioP3u5Iet" of March 13, 2003], all belong to the Applicant of the present invention.
In one aspect of the present invention, the foregoing needs are addressed by receiving each of the first and second subsets from the set of access terminals of the sequence-to-interval assignment, each interval being associated with a mode of multiple access, wherein the second subset is mutually excluded from the first subset; Each of the first plurality of access terminals of the planning solution for the interval associated with the first mode of multiple access, the interval is divided into the first part and the second part, the first part contains service channels; the choice of each of the first subset of the access terminals mode for multiplexing the data, the first the mode includes the embedding of the co-user dthem only in the first part of the inter-shaft using the format of multiplexing; the second mode involves embedding the user data in at least one subdivision of the second part of the interval, where each of the at least one unit is linked to the multiplexing form; and the third mode includes the embedding of the user data in the second layer using the first and second modes and the transmission of the user data from at least one of the first subset of the intermediate access terminals associated with the first multiple access mode, using the selected mode of data multiplexing in accordance with the decision planning.
In another aspect of the present invention, the foregoing needs are addressed by selecting each of the second subset of the access terminals of the mode for data multiplexing, wherein the third mode includes the embedding of user-specific data only in the first part of the interval using the format of the multiplexing; quadrupole mode includes embedding of user data only in the second part of the second cycle using the format of multiplexing; and the third mode includes the embedding of the user data in the interval with the common use of the first and second modes; and transmitting user data from at least one of a second subset of access terminals in an interpol that is associated with a second multiple access mode using the selected data multiplexing mode.
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In another aspect of the present invention, the foregoing needs are resolved by transferring user data from at least one other subset of access terminals in the interval associated with the first multiple access mode using the first data multiplexing mode
In another aspect of the present invention, the foregoing needs are solved by transferring user data from a third subset of a set of access terminals; said third sub-set is mutually excluded from the first subset and the second subset.
Brief description of the drawings
1 is a conceptual block diagram of a communication system capable of functioning in accordance with the realization of the present invention.
FIG. 2 illustrates the implementation of a waveform of a direct channel connection in the present invention. FIG.
FIG. 3 is an illustration of a method for transmission control commands and packet delivery commands on a reverse power control channel. FIG.
Figures 4a-4b illustrate the implementation of the waveform of the reverse link channel.
5a-5c illustrates the implementation of the architecture of the reverse link.
FIGS. 6a-6c is a conceptual flowchart of the URI communication system.
7 is an illustration of the implementation of data transmission to the back channel.
8 is an illustration of the implementation of retransmission of data on the reverse link.
9 is an illustration of an access terminal.
10 is an illustration of an access point.
1 illustrates a conceptual diagram of a communication system. Such a communication system can be built in accordance with the standard IZ-856. The AC access point transmits the data of the access terminal 104 to the directional communication channel 106 (1) and receives the data of the access terminal 104 on the reverse link channel 108. (1). Similarly, the up-point 102 sends the data to the access terminal 104 on the forward link 106 (2) and receives the data from the access ter-minal 104 on the reverse link channel 108 (2). Data transmission on the direct communication channel occurs from one access point to one access terminal at the maximum or close to the maximum data rate, which is supported by the direct channel of communication and the system communication. Additional channels for a direct link, such as a control channel, can be transmitted from a plurality of access points to one access terminal. Data transmission on the reverse link can be from one access terminal to one or more access points. The access point 100 and the access point 102 are connected to the access network controller 110 via the reverse links112 (1) and 112 (2). The back link is a communication channel between the controller and the access point. Although only one access point and one access point are shown in FIG. 1, this is done only to simplify the explanation and the communication system may include a plurality of access terminals and access points . connected to the access control controller 110 via the feedback lines112 (1) and 112 (2). The back link is a communication channel between the controller and the access point. Although only one access point and one access point are shown in FIG. 1, this is done only to simplify the explanation and the communication system may include a plurality of access terminals and access points . connected to the access control controller 110 via the feedback lines112 (1) and 112 (2). The back link is a communication channel between the controller and the access point. Although only one access point and one access point are shown in FIG. 1, this is done only to simplify the explanation and the communication system may include a plurality of access terminals and access points .
After registration, which allows the access terminal to access the access network, the termi-
the access port 104 and one access point, e.g., an access point 100, establish a communication channel using a predetermined access procedure. In a connected state, which is the result of a predetermined access procedure, the access terminal 104 is capable of receiving data and control messages from the access point 100 and is capable of transmitting data and control messages to the access point 100. Access terminal 104 continuously searches for other access points that may be added to the active set of access terminal 104. An active set includes a list of access points capable of establishing a session with the access terminal 104. When such an access point is found, the access terminal 104 evaluates the quality metric for the access point direct link channel, which may include the signal-to-interference ratio and noise ratio (3YNP). 3YNR can be determined according to the control signal. Access terminal 104 is looking for other access points and defines the 3IIN access node. At the same time, the access terminal 104 calculates the quality metric for a direct communication channel with each access point in the active set of access terminal. If the metric of the quality of the forward link to a specific access point is also predetermined by the addition threshold or the predetermined threshold for deletion in the predetermined time period, the access terminal 104 transmits this information to the access point 100. Further messages from the access point 100 may be sent to the terminal 104 access in order to add or remove a particular access point of the active set of access terminal 104. access terminal 104 calculates a quality metric for a forward link channel with each access point in an active set of access terminal. If the metric of the quality of the forward link to a specific access point is also predetermined by the addition threshold or the predetermined threshold for deletion in the predetermined time period, the access terminal 104 transmits this information to the access point 100. Further messages from the access point 100 may be sent to the terminal 104 access in order to add or remove a particular access point of the active set of access terminal 104. access terminal 104 calculates a quality metric for a forward link channel with each access point in an active set of access terminal. If the metric of the quality of the forward link to a specific access point is also predetermined by the addition threshold or the predetermined threshold for deletion in the predetermined time period, the access terminal 104 transmits this information to the access point 100. Further messages from the access point 100 may be sent to the terminal 104 access in order to add or remove a particular access point of the active set of access terminal 104.
The access terminal 104 selects a serving access point from the active set of the access terminal 104 based on a number of parameters. The service-leading access point is called an access point that is selected for data transmission by a particular access terminal or access point that transmits the data to a specific access terminal. A set of parameters can include, for example, any one or more current or earlier measurements of 3YN, the frequency of occurrence of false bits, the frequency of the appearance of false packets, and any other known parameter. Thus, for example, a serving access point can be selected correspondingly to the maximum measurement of 3YNP. Then, the access terminal 104 sends a broadcast message request request (JUR message) through the data request channel (JRC channel). The JMS message can contain the requested data transfer speed or, alternatively, the indicator of the quality of the direct link, for example, measured 3YNP, the frequency of error bits, the frequency of error bugs, and the like. An access terminal 104 may send a broadcast JMS message to a specific access point using a code that uniquely identifies a particular access point. As a rule, such a code is used by the Walsh code. The symbols of JRS messages are uniquely processed by logical PR (HOR) with a unique code. This operation is called HOR called code coverage of the signal. Since each access point in the active set of access terminal 104 is identified by a unique Walsh code, only the selected An access terminal 104 may send a broadcast JMS message to a specific access point using a code that uniquely identifies a particular access point. As a rule, such a code is used by the Walsh code. The symbols of JRS messages are uniquely processed by logical PR (HOR) with a unique code. This operation is called HOR called code coverage of the signal. Since each access point in the active set of access terminal 104 is identified by a unique Walsh code, only the selected An access terminal 104 may send a broadcast JMS message to a specific access point using a code that uniquely identifies a particular access point. As a rule, such a code is used by the Walsh code. The symbols of JRS messages are uniquely processed by logical PR (HOR) with a unique code. This operation is called HOR called code coverage of the signal. Since each access point in the active set of access terminal 104 is identified by a unique Walsh code, only the selected
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The access points that perform the KHOR operation, the ident operation performed by the access terminal 104 with the correct Walsh code, can correctly decode the JWS message.
The data to be transmitted to the access terminal 104 is received by the controller 110 of the network of access. After this, the access network controller 110 may send the data to all access points in the active set of the access terminal 104 on the downlink 112. Alternatively, the access network controller 110 may first determine which access point has been selected by the access terminal 104 as a serving access point, and then send a dataset to the serving access point. Data is stored in the queue at the access point (s). Then the system paging message sent etsya one or more access points doterminala 104 corresponding to keruyuchyhkanalah terminal 104 demodulates and pan-blowing signals from one or more control kana-Liv receipt of the notification system for paging.
For each interval of the direct link, the access point can plan the transmission of data to any of the access terminals received in response to the personal call system. An exemplary method for scheduling a transfer is described in US Patent No. 6,229,795 entitled "ZuwiyetTog aiiosaiipd hevoigtsev ip a komotipyasiou vvite"] issued to this applicant. The access point uses control information about the speed received by the OCR message from each access terminal, for efficiently transmitting data over a direct link with the highest possible speed. Due to the fact that the data transfer rate may vary, the communication system operates in a variable speed setting. The access point determines the data rate at which it is necessary to transfer data to the access terminal 104 based on the last 0RC of the message, Received access terminal 104. Additionally, the access point uniquely identifies the transmission to the access terminal 60 via a diversity code that is unique to the mobile station. This diversity code is a long pseudo-noise sequence, for example, the diversity code defined in the standard Z-856.
An access terminal 104 for which a data packet is assigned receives and decodes the data packet Each data packet associated with the identifier, for example, is a serial number used by the access terminal 104 to detect duplicate transmissions or duplicate transmissions. In this case, the access terminal 104 transmits the serial numbers of the missing data packets on the reverse link. Then, the access network controller 110, which receives the messages from the access terminal 104 through the communication link between the access point and the access terminal 104, reports to the access point which data blocks were not received by the access terminal 104. Then, the access point plans to re-transmit such packages data.
When the communication channel is between the access terminal 104 and the access point 100 operating in the mode
variable data rate worsens below a predetermined level of reliability, the access terminal 110 initially tries to determine if another access point in the variable data rate can maintain an acceptable data rate. If the access terminal 104 has such an access point (e.g., access point 102), there is a re-routing (access point) of the access point 102 to the other communication channel. The term "redirection" refers to the sector selection, which is a member of the active set of access terminals, where the sector is different from the sector currently selected. Data transmissions continue from the access point 102 in the mode of the variable data rate
The above-mentioned deterioration of the communication channel may be caused, for example, by the movement of the access terminal 104 from the coverage area of the access point 100 to the coverage area of the access point 102, screening, attenuation, and other well-known causes. Alternatively, when the communication channel between the access terminal 104 and the other access point (e.g., access point 102) that may receive a higher bandwidth than the used communication channel becomes available, there is a reenter of access to access point 102 to another channel The data transmission and data proceed from the access point 102 in the mode of variable data transmission speed. If the access terminal 104 can not detect an access point that is capable of operating in the variable speed mode of data transmission and maintain an acceptable data rate, the terminal 104 goes into a fixed data rate. In this mode, the access terminal transmits at one velocity.
Access terminal 104 evaluates communication channels with all access points by candidates for both speeds of the variable transmission speed and fixed transmission speed, and chooses the access point that gives the maximum throughput.
Access terminal 104 will switch to a fixed-speed data rate at the back of the data transfer rate variable mode if the sector is no longer a member of the active set of the access terminal 104.
The above mode of fixed data rate and how to move in and out rezhymufiksovanoyi data rate analohichniopysanym [in US Patent Application №6,205,129, entitled "ΜΕΤΗΟϋ ΑΝϋ ARRARATyZ RORUARiAVI_E ΑΝϋ ΡΙΧΕϋ RORMARO Ι_ΙΝΚ RATESΟNΤRΟ ^ ΙΝ MOVII_E RAOIO SΟΜΜυNiSAΤiΟN3Υ3ΤΕΜ"] that belongs to this applicant. Other types of fixed data rates and means for switching to and from a fixed mode can also be considered and are in the scope of the invention.
Structure of the direct communication channel
FIG. 2 illustrates the structure of the forward link 200. It should be understood that the description of the lower duration of the time intervals, the length of the microframes, the ranges of values are given only for an example, and other lengths of time intervals, frame lengths, ranges of quantities may be
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used without violating the basic principles of the operation of the communication system. The term microcadensizes a block of code diversity code, which has two possible values.
The direct communication channel 200 is defined in terms of frame frames. Frame is a structure containing 16 time intervals 202, each time interval 202 has a length of 2048 microframes, corresponding to the duration of the time interval of 1.66 ms, and correspondingly the duration of the frame at 26.66 ms. Each time interval 202 is divided into two time half-torn 202a and 202b, with control packets 204a, 204b, which are transmitted in each time half-terminal 202a, 202b. Each control packet 204a, 204b has a length of 96 quadrants, and centers around the middle of the associated time intervals 202a, 202b. Control packets 204a, 204b include a signal of a control channel, covered by a code, for example, the Walsh code with index 0. The direct channel of the control protocol access to the transmission medium (MAC) forms two packages, which are transmitted directly directly to the control packet 204 of each half hour interval of 202. The MAC is formed no more than 64 coded channels that are orthogonally covered with 64-bit code, such as Walsh's home. Each encoded channel identifies the MAC with an index that measures from 1 to 64 and identifies the unique 64-bit Walsh cover code. The power control back channel (RPC) is used to control the power of the feedback channel signals for each subscriber station. RRS is allocated to one of the available MAC channels, for example, MAS channel with MAS index of 5 to 63. The channel of reverse activity (RA channel) is used to adjust the speed of data transmission by the reverse link for each subscriber station by transferring the bit stream of reverse activity ( RW stream). The RA channel is assigned to one of the available MAC channels, for example MASindex 4. The feed channel of the direct channel or the crust of the control channel load is sent to the remaining time portions 208a, the first time half past 202a, and the remaining 208b portions of the second half hour interval 202b. The channel is a user data, and the channel manager can control the message and also can not carry the user data. The control channel is transmitted with a cycle, with a period of 256 intervals, at the data transmission speed of 76.8 kBrv or 38.4 kBrv. The term user data, also called traffic, means information other than official data. TermService data refers to information that makes possible the functioning of system communication elements, such as signaling support for calls, diagnostic and reporting information, and the like.
Channels provide a package and automatic transmission zapytpovtornoyi As discussed, sy-topic connection may require support both access terminals using zvorotnyykanal communication according to the standard 856-SOLID - both the conventional access terminals and terminals Gain po, using the feedback channel
in accordance with the described concept - new terminals access. To support such functionality, in front of the communication channel, there is a need for an additional channel, a channel for providing packets (RS channel). RS channel can be provided by modulating the modulation of one of the above-mentioned MAC channels, such as the RRS channel, from binary phase manipulation ( VRZK) on a quadratic phase mania-pulp (ORZK). When the second part of the intervalreverse communication channel is allocated to only oneterminal access (see below), it is necessary only one RS channel, the primary RS channel.
Power management commands are modulated in the phase section of the RRC channel assigned to the term-of-access access. The power control command information is binary, where the first value of the power management bit ("IR") gives the access terminal command to increase the power of the access terminal transmission to the first predetermined value, then the value of the power control bit ("SODP") gives the terminal access command to reduce the power transfer of the access terminal to another predetermined value. As shown in Figure 3, the "ir" command is represented as "+1"; The command "Sovdp" is presented as "-1". However, other values may be used.
Primary RS channel is transmitted through the quadrature branch of the RRC channel, designated terminal access. The information transmitted on the original Pc channel is ternary. As shown in Figure 3, the first value is represented as +1, the visibility is represented as 0 and the third value is represented as -1. The information has the following content, both for the access point and for the access terminal:
+ 1 means that the authorization for the transfer of a new license is granted;
0 means that the permission to transfer a new packet is not provided; and
-1 means that the transfer authorization has been granted to the previously transmitted packet (retransmission).
The alarm system described above, in which the transmission of information with a value of 0 does not require sig-nal energy, allows the access point to assign energy to the primary RS channel only when transmitting instructions to transmit the packet. Due to the fact that only one or a few subscriber terminals have permission to transmit over the reverse channel during the time interval, the primary RF channel requires very little power for to provide transmission information over the reverse link. Accordingly, sufficient power can be allocated to the primary RF channel in order to guarantee a reliable pr-iom of the primary RS channel by access terminals without excessive distortion of the power distribution. Accordingly, the effect on the power distribution RRS distribution is minimized. The method of distributing RRS power is disclosed, for example, [in US Patent No. 6,678,257,
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Nietzsche '], both belong to this applicant. More than that, the access terminal needs to execute a tethered quadrature flow only when the access terminal waits for the corresponding data transfer request or when the access terminal has an incomplete data transmission. However, it must be clear that the choice of ternary values is a matter of choice, and values other than those described above may be used.
The access terminal receives and demodulates the RPC / primary RS channel from all access points of the active access terminal set. Accordingly, the access terminal receives the primary RF data of the channel transmitted in the quadrature branch of the RMS / primary RS channel for each access point from the active access terminal set. The access terminal can filter the energy of received information of the primary RS channel for one update interval and compare the filtered energy with a plurality of threshold values. With the appropriate choice of threshold values, access terminals that have not been granted permission to decrypt, decode the value of the primary RS channel as 0 is very likely.
Next, the information contained in the primaryRC channel is used as a means of automatic retransmission request.
When the transmission on the reverse link of the packet from the access terminal is received only by the service access point, the service access server generates and transmits a permission-to transmit a new packet in response to the access request request for the packet transmission when the previous access point from the access terminal has been received correctly but. In this case, such information in the primary RS channel serves as a message (ASC). The service access point generates and sends permission to retransmit the previous packet as the response to the request for the access terminal on the packet transfer if the previous packet from the access terminal was incorrectly received. Such information on the primary RS channel serves as a negative-out message ** ASC). Thus, do not use a separate ASK-ASK channel.
Alternatively, the transmission of a packet over a reverse channel from an access terminal can be accessed by a plurality of access points.
When the non-serving access point is received, and the feedback loop is coded from the transmitter access terminal, the non-serving access point provides information on whether or not the user data has been successfully decoded at the serving access point. Then, the serving access point sends ASK ^ ASK access terminal to the primary RS channel.
Alternatively, the access point (s) that received the useful information sends useful information to the centralized element for executing 5th-SEISIC decoding. Then, the centralized element informs the servicing access point about whether the decoding of the collation information was successful. Then, the service access point sends ASK ^ ASK to the access terminal on the primary RS channel.
Alternatively, before the decoding of the reverse link, a non-serving access point can independently send ASK ^ ASK to the TER terminal of access on the primary RS channel. So, it is possible that the access terminal will receive conflicting information on the primary PC channel, for example, because some access points could not correctly accept the transfer of the access terminal, the information in the primary RS channel hasstarter or incorrectly accepted or for other reasons. Accordingly, the information transmitted in response to the transmission on the reverse link on the primary RS channel, is interpreted different way, when transmitted to the service-choy or non-service access point. Therefore, from the point of view of the access network does not matter which access point accepts the transmission of the access terminal, when the access terminal accepts information on the primary radio channel,
Because the access terminal accepts the terrestrial solution on the primary RS channel, receiving-from the service access point, and binary resolution on the primary RS channel received by the access point, the access terminal can use different thresholds for the ternary solution and the binary solution.
When the second part of the feedback loop interval is allocated only to one access terminal (see below), the RS channel described above provides satisfactory information. However, when the second part of the interval of the reverse link allocated to the set of access terminals, need additional information, namely, which end-to-duct terminal that received permission to transmit, and in which the division of the second part of the in-ter val of the reverse link. Such information can be provided by auxiliary RS channel scam.
The structure of the auxiliary RS channel is exactly the same as in the RS channel described above, except that the auxiliary RS channel has a different MAIN index. Returning to FIG. 3, the information of the auxiliary RS channel is transmitted in both phase and quadrature branches. This information is interpreted together with the information extracted from the Pc channel in the following manner:
- when the RS channel informs the access terminal that the permission for the transmission of the packet has been received, the secondary RS channel is ignored,
- when the RS channel informs the access terminal that the permission for the transfer of a new packet or permission to transmit the previously sent packet (retransmission) is received, then:
0 means that the access terminal must use the entire second part of the interval of the reverse link channel;
any of the remaining four values
identifies one of the four breakdowns of the second time-
reverse link band interval.
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Thus, the above described signaling can support four splits in the second part of the in-terval feedback channel. Additional supplementary RS channels may be added if there are more than enough distortions.
RS channels, that is, MAC indices, may be allocated to the access terminal in front of the access terminal access to the communication system. Alternatively, the RS channel may be allocated to the access terminal, and the secondary RS channel may be determined by the te-access denial of the MAC of the RS channel index, for example by adding a predetermined bias shift to the RS channel.
Reverse Activity Channel
As described above, the communication system in accordance with the standard 13-856 uses the channelreverse activity to adjust the rateransmission of data by the reverse link for each subscriber station by transmitting a bitstream flow of reverse activity (RW stream). This channel of reciprocal activity is sufficient, If only a small number of terminals transmitted in intervals intended for TUUM, the function is in the communication system. However, for the support of access control junction terminals, as well as new access terminals, which are transmitted in the intervals assigned to TUUM, an additional channel is required for the forward link.
In order to maintain the data transmission speed of the backlink for new access terminals transmitted in intervals assigned to TUUM, it may be required that the reverseactive channel support the transmission of a value regulating the data rate, which requires more than one bit. Because of this, it may be desirable not to change the over-dimensional structure of the direct channelcommunication, an additional channel of reciprocal activity may have the same structure as the traditional channel of reciprocal activity, but it may be assigned another MAS index. Because such a channelreverse activity supports the transfer of onlyone bit, the multi-level value may be transmitted through several transmitting instances of the channel of reciprocal activity.
The above direct channel 200 communication ismodification of the direct link in the communication system in accordance with the standard 13-856. It is believed that such a modification has less effect on the structure of the direct link, and, accordingly, requires less changes in the standard 13-856. However, it should be clear that such a doctrine is applicable to different structures of the direct link of communication. Thus, for example, the channels described above, the direct link can be transmitted inconsistently, and at the same time. In addition, any current-ktura direct communication channel, making the possibility-tion transfer of information available in MS and RA dopomizhnomuRS channel, for example, can be Thani Use separate PC and ASA / ЫASK encrypted channels, the new RA channel, different from traditional RAcanal.
Reverse link
As described above, the quality and efficiency of data transmission depends on the status of the channel betweenterminal source and destination terminal.
Channel states depend on interference and loss paths that depend on time. Thus, the pro-ductivity of the reverse link can be improved by means of dampening of the in-terence. On the reverse link, all the access denominators in the access network can be transmitted at the same frequency (one number of frequencies used repeatedly), or the number of access terminals in the network can transmit at the same frequency (more than one set of reusable hour-one). It should be noted that the feedback channel described here, can use any frequent use of frequencies. Thus, any transmission by the access terminal via the reverse link is subjected to several interference sources. The most dominant interferents are:
- transmission of service channels with multiple access with code division of channels from other terminals of access from both the same cell and from other cells;
- transfer of user data with multiple access with code division of access terminal terminals from the same cell;
- transfer of user data with multiple access with code division of access terminals from other cells.
Study of the performance of the reverse channel in systems of communication with multiple access with code split channels (SUMA) indicate that the removal of interference in the same cell can lead to significant improvement in quality and efficiency of data transmission. Interference in the same cell in communication systems using the UAN, for example, in communication systems according to standard 13-856, can be reduced by helping to limit the number of access terminals that can simultaneously be transmitted over the reverse link.
Because of the existence of two modes of operation, that is, limiting the number of access terminals transmitted simultaneously, and allowing all terminals to transmit simultaneously, the access network should alert the terminals about which regime should be used. The message is transmitted to access terminals at periodic intervals, for example, in a predetermined part of the direct communication channel, for example, each controlling the cyclone channel. Alternatively, the message is transmitted to the access terminals only when modified by the broadcast message on the forward link, for example, by the reverse power management channel.
When the system operates in a limited volume, the direct packet link communication described above can be used to allow or deny the transfer of access terminals requesting transmission permission.
Interference in the same cell can be also reduced by using the traffic channel and service channels with multiple access with time division on the reverse link, and with the help of scheduling, which access terminals asking for the transmission are allowed to transmit
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custom data or traffic in the time interval of the reverse link, for example, in a frame, in a time interval, or in any other time interval supported by the communication system. Planning can take into account the entire network of access, and can be executed by a centralized element, for example, the controller of the network of access network. This method of planning minimizesinterference because the terminals transmit to the neighboring sectors of the cell. Alternatively, scheduling may take into account only part of the access control that contains only one access point, and can be executed either by a centralized element or by a decentralized element, such as an access point controller. This way of planning reduces only interference in the same cell. Moreover, the combination of these two methods may be used,
It will be understood that the number of access terminals allowed to be transmitted at the time interval affects interference in the originating channel, and, accordingly, the quality and the class of data services provided (OO) for reverse link. Thus, the number of access terminals that are allowed to be transmitted is a constructive criterion. Accordingly, such number can be regulated by a planning method, in accordance with changing conditions and / or requirements of OOP.
Additional improvements can be achieved by reducing the interference from other cells. Interference from other cells in the process of transferring user data is suppressed by the pseudo-nysical transmission, control of the power of the p-edit and the speed of the transmission of user data for each access terminal within the multi-cell honeycomb. "Provisional transmission" (and multi-user diversity) means scheduling the transmission of access terminals in time slots that exceed a certain threshold of admissibility. The time interval may be considered valid, if the metric is determined according to the instant quality metric for the returning communication channel in the time interval, the average quality metric for this reverse link and the function that makes it possible to divert the users (such as the function non-patience described below) exceeds the threshold of destitution. The method makes it possible to transfer the user data to an access terminal at a lower transmission power and / or a packet transmission completion using a smaller number of time slots. The less power of the transfer and / or the completion of the packet transfer with the use of a smaller number of time slots leads to a decrease in interference from the transmitting access terminals in the sectors of the bataxector cell and, thus, to the less common interference from other cells for the access terminals in the neighboring cells One alternative, channels of the channel above the average allow the terminal to use available power for transmission with a higher transfer rate data, thereby causing the same interference makes it possible to transfer user data to the access terminal at a lower transmission power and / or packet transmission completion using a smaller number of time slots. The less power of the transfer and / or the completion of the packet transfer with the use of a smaller number of time slots leads to a decrease in interference from the transmitting access terminals in the sectors of the bataxector cell and, thus, to the less common interference from other cells for the access terminals in the neighboring cells One alternative, channels of the channel above the average allow the terminal to use available power for transmission with a higher transfer rate data, thereby causing the same interference makes it possible to transfer user data to the access terminal at a lower transmission power and / or packet transmission completion using a smaller number of time slots. The less power of the transfer and / or the completion of the packet transfer with the use of a smaller number of time slots leads to a decrease in interference from the transmitting access terminals in the sectors of the bataxector cell and, thus, to the less common interference from other cells for the access terminals in the neighboring cells One alternative, channels of the channel above the average allow the terminal to use available power for transmission with a higher transfer rate data, thereby causing the same interference The less power of the transfer and / or the completion of the packet transfer with the use of a smaller number of time slots leads to a decrease in interference from the transmitting access terminals in the sectors of the bataxector cell and, thus, to the less common interference from other cells for the access terminals in the neighboring cells One alternative, channels of the channel above the average allow the terminal to use available power for transmission with a higher transfer rate data, thereby causing the same interference The less power of the transfer and / or the completion of the packet transfer with the use of a smaller number of time slots leads to a decrease in interference from the transmitting access terminals in the sectors of the bataxector cell and, thus, to the less common interference from other cells for the access terminals in the neighboring cells One alternative, channels of the channel above the average allow the terminal to use available power for transmission with a higher transfer rate data, thereby causing the same interference
this in other cells, such as the one that would cause the access terminal, using the same available power for transmission at a lower speed of the data transmission at inappropriate time intervals.
In addition to reducing the interference in the reverse link, the loss on the track and the replacement cost on the track can be used multi-user dispersal to increase the penetration capability. "Multi-user diversity" is a consequence of the diversity of the status of the channel by access libraries through, for example, different location positions that experience different shielding and imprisonment as a function of time. Diversity in the states kanalupo user terminal does mozhlyvymplanuvannya transmissions of access terminals in chasovyhintervalah in which channel conditions for thermo-nala Access satisfy certain criteria that makes it possible to transfer less powerful Stu or more high-speed transmission data, thereby improving spectral effective-ness Transmissions on the reverse link.
The design of the scheduler can be used to control the access terminals of the access terminals. Thus, for example, by moving the scheduler in the direction of the subset of the terminals access in, a subset of the subset may be allocated a priority transmission, although the permissibility shown by these terminals may be lower than the tolerance shown by non-leased terminals this subset. It should be understood that a similar effect can be achieved with the use of the impatience function described below. The term subset means a plural, whose members there is at least one, but not all, members of the other set.
Even when applying the method of opportunistic transmission, the packet transmitted can be taken erroneously and / or deleted by an access point. The term deleted is the inability to determine the contents of the message with the required reliability. This false reception is a consequence of the failure of the access terminal to accurately predict the metric of the quality of the return channel connection of the terminal access through interference from other cells. Interference from other cells is difficult to determine quantitatively in communication systems in which the transmission of access terminals from sectors belonging to different multisectoral cells is not synchronized, short and not correlated.
To suppress the wrong channel estimation and ensure the averaging of interference, often used methods of automatic query re-transmission (ΑΡΩ). APEC methods detect missed or mistakenly accepted packet (s) at the physical level or at the channel level and request retransmission of these packets from the transmitter terminal.
A hierarchical breakdown is a way to organize
communication protocols (well-defined encapsulated
data blocks between otherwise separated processing-
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we are elements, that is, levels). Levels of protocols implemented both in access terminals, and in access points. In accordance with the model of interaction of open systems (031), the level of protocol I_1 involves the transmission and reception of radio signals between the base station and the remote station, the level D2 involves correct transmission and reception of signaling messages, and the level I_3 involves the exchange of signal communications for the communication system . Level І_3 begins and completes alarm messages according to the semantics and synchronization of the communication protocol between the terminals of access points and access points.
In communication systems according to standard 13-856, the radio interface level signaling level I_1 is called the physical level, and I_2 is called the access control level to the communication channel (DAS) or the level of access control to the transmission medium (MAC), and D3 called signal level. High-level level are the additional levels that are in accordance with the model of the OI numbered D4-D7, and called the transport layer, session level, representation level and applied level. The physical level of the AP is disclosed [in US Patent No. 6,694,469, entitled "MONEY Abrar Arabi Tog Oiisk Re-Yigapvatvivop οί Sidpov ip Azottipasyop Zuvit "dated February 17, 2004], issued to this applicant. An example of a method of channel level is the AP-O is a radio channel protocol (DDR). The RDF protocol belongs to a class of protocols with con- troll errors known as AP-O protocols, in the absence of acknowledgment of receipt (NAC). One such DDR protocol is described in the TIA / EIA / І3-707-A.8 document entitled "YATA3ERUICE EOFTYON3 EOR 3RREA0 3RESTRIDIM3U3TEM3: RAOIO MNC ROUTE TOUR 2", the longest protocol is called DDR2. Transmissions of both original and retransmitted packages may be opportunistic.
Transmission via reverse link
Transmission of user data on the reverse link from the traditional terminals to the stupa uses multiple access with code split channels (COMA), such as COMA according to the standard I3-856.
The new access terminals may use different methods of multiple access for the reverse link in accordance with available options in the communication system. First, new access terminals can use the COMA, which is used by traditional access terminals, such as the SOMA according to the standard I3-856.
In addition, the communication system may have the possibility of operating a reverse link, designed primarily for multi-channel time-division multiplexing (TOMA). This operation is possible by separating the back-channel communication at intervals, and the communication of each intervalues with the COMA or TOMA. The control elements of the access network, for example, the access control controller 110, make a decision that determines the meaning of the COMA and TOMA sequence The decision is taken in accordance with the status of the reverse link for a particular access terminal, the number and activity of traditional access terminals, and other constructive criteria in the system.
communication The status of the reverse link can be installed according to the erasure speed for the IORS channel. Constructive criteria mayinclude, for example, finding a certainterminal in the state of transferring a call from one base station to another in the process of moving the user, downloading the reverse link, andother criteria known to a person skilled in the art. Obviously, the distribution may include onlyinterests associated with one of the methods of multiple access.
Then, the control element in the access network in-forms the access terminals for the appointment by means of sending the distribution to all terminals access to the access network. Alternatively, the assignment is only transmitted to new terminals. Purpose is transmitted in periodic intervals, that is, in the predetermined part of the direct communication channel, for example, each control channel of the channel. Alternatively, the destination is transferred to the access terminals only when you change the broadcast message to the right channel, for example, in the control channel. The number of bits in a message (bits-indicators) depends on the number of different sequences.
New terminals receive destination information, and if no autonomous choice between COMA and TOMA functionality is specified, they are transferred to the multiple access specified in the destination information. If the access terminal is provided with the possibility of choosing between COMA and T0MA functionality, the new access terminal autonomously takes decisions in accordance with the constructive criteria of the communication system. Such criteria may include, for example, the free resources of the power subscriber, the metric of the quality of the direct link of communication, the finding of a particular terminal in the state of transferring a call from one base station to another in the process of moving the user, the quality metric of the return channel, the amount of data that is not It is necessary to convey the meaning of the impatience function, the requirements of OO3, and other known constructive criteria. Thus, for example, a new access terminal, the power potential of the communication link which allows the transmission on the reverse link with a seam higher than the threshold value, can use TOMA; otherwise the new access terminals may be used by SOMA. Moreover, new access terminals can use TOMA, but those with very small packet size for transmission at high data rates can choose COMA. Alternatively, ATs can choose COMA for low-delay applications. having a very small packet size for transmission at high data transfer speeds, can choose COMA. Alternatively, ATs can choose COMA for low-delay applications. having a very small packet size for transmission at high data transfer speeds, can choose COMA. Alternatively, ATs can choose COMA for low-delay applications.
Reverse link channels
As discussed above, the traditional access terminals function according to the I3-856 standard, respectively, the waveform of the reverse link channel for traditional terminals is identical to the waveform for the reverse link on the I3-856 standard, and is not detailed later on. .
In addition, new access terminals that use
access code-division, for example
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SOMA, in accordance with the standard of-856, uses the waveform of the reverse link, identical to the waveform of the reverse link channel of the standard with-856.
The exemplary waveform of the reverse link for a new access terminal operating in the TOM range is shown in FIG. 4a-c. It should be understood that the given three-valley, the lengths of the microframes, the ranges are given only for the example, and the other the duration of time intervals, frame lengths, and the range of frequencies can be used without violating the basic principles of the functioning of the communication system.
The communication back channel 400 is defined in the terms of the intervals 402. The interval is a structure that contains a predetermined amount of time in-terals 404. As shown in Fig. 4a, the interval contains t time intervals, however, the number of time intervals is a design question. ; accordingly, any number of time intervals can form an interval. Each time interval404 (1), .., 404 (t) is divided into two parts 406,408. The first portion 406 includes service channels 412-418 and an optional traffic channel supported by the additional service channel 420.
The service channels of the reverse link can be set to: control channel 412, request channel 414, message channel 416, packet request channel 418. Additionally, the traffic channel, which is accompanied by a return channel indicating the velocity (EEI), shared by the link420, may also be included in the first part406.
The second part 408 is further divided into divisions 410, each unit 406 carries a canal and an accompanying return speed channel 422 for the access terminal. As shown in FIG. 4a, there are η subunits 410 in the secondpart 408 (1) of the first time interval 404 (1) , respectively, η different access terminals can transmit in the second part 408 (1) intervals404 (1); there are 1 subunits 410 in the second part of the 408 (t) t-th time interval 404 (t); Answers-η of different access terminals can-transmit in the second part 408 (t) intervals of 404 (t). Access network, according to the designer scheduler, can vary the number of units 410. One unit means that the entire second part of the interval is used by one terminal. Additional and the traffic channel and the attendant EEE channel, provided in units 410, can use TIM, OBOM,
FIG. 4b illustrates a defined TIME interval of 402. The TIMA interval contains one time interval of 404. Time interval 404 has a length of 2048 microframes, which corresponds to the length of the time interval of 1.66 ms. Each time interval is divided into two parts of 406, 408, each part equal to half the time interval. Because the second part 408 is not divisible additionally, another part 408 corresponds to the first unit 410.
Service channels, as described above, are bundled with different codes, for example, by the help of
Gow encoding with different Walsh codes and Zossier-jeny in the first part of 406. Optional canaltraff that the soup is conducted by the back channel of the display of speed (EEy), collectively denoted by force 420, can also be included in the first part of 406. Its channel embedded in the channel, and the resulting structure 420 differs from the service channels to another code, for example, with the help of coding the excellent Walsh code. Accordingly, the traffic channel and EE channel 420 are called the COM channel of traffic, corresponding to the COM / EEI channel. As an alternative (not shown), the EEI channel is not embedded in COM traffic. Answer-bottom, COM channel traffic and EE channel vary by the coverage of each unique code.
An additional traffic channel 422 (T) and a tracking feedback channel 422 (EEI) of speed indication (EEI) are provided in the second hourly half-interval 408. As shown in FIG. 4b, the traffic channel 422 (T) and the accompanying EEE channel 422 (EEI) multiplexed with time division, and called the TOMA traffic channel, responding to TOM / EEI channel.
Although this is not shown in the drawing, the additional channel of traffic and the accompanying EE channel, provided in the second half-time 408, can use the OBOM, COM or any other modulation format (not shown). In addition, as described below, an additional traffic channel accompanying the EEI channel provided in the second half-time interval 408 may use different formats of multiplexing, for example, TOMA and OOBOM, depending on the data transmission rate.
FIG. 4c illustrates a waveform of a reverse link channel for an access terminal that functions in the TOM range, but does not transmit data in the second half-interval 408. As shown, the service channels 406-418 and the optional COM-channel trafic / COM EEI channel 420 are still transmitted by the first half-interval 406, and the energy is not transmitted in the second half-interval 408.
Accordingly, for embedding user data in the interval, dedicated TOMA, a new access terminal can use three different protocols (modes) of multiplexing user data in the following interval:
embedding user data into the firstpart of an interval using code division multiplexing (COM);
embedding user data into the second part of the interval using time division multiplexing (TOM) or orthogonal multiplexing of the frequency division (OBM); and
embedding user data into the firstpart of the interval, using COM, and in the secondpart of the interval, using TOM / OBOM.
FIG. 4b illustrates a waveform of a reverse link channel for a new access terminal that operates in the COMA interval and transmits user-data data in both half-intervals 406, 408. As shown, service channels 412-418 and an optional COM channel Traffic / COMEI channel 420 are edited during the first time half-interview-
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406. Additional CUM channel 422 is transmitted during the second half-interval 408.
Although not shown in FIG. 46, a new access termine can use the CUM traffic channel, that is, to embed custom data into an interval intended for SUMA using the CUM with the help:
- embedding user data in the firstpart of the interval 406;
- embedding of user data into the first part of the interval 408; and
- embedding of user data in the first part of the interval 406 and in the second part408.
Data transmitted in the CUM part of the TIME / PRIME section of the time interval may contain data relating to the same range of information, such as a video. In addition, the base video stream can be transmitted in the SUM part of the time interval and an improved video stream - in the TUM / ORUM of the time interval; appropriately, an acceptable video can still be obtained if the terminal can not transmit in the second polo-time of the time interval. Alternatively, each half can contain data relating to different kinds of information. Thus, for example, voice data can be transmitted in a CMS part of the time interval, and the video can be transmitted in TYUM / ARM in part of the time interval.
Control channel
In one implementation, the control channel 412 is used to evaluate the quality of the reverse link channel. In addition, the control channel 412 is used for coherent demodulation of the channels transmitted in the first half-time interval 406. Control channel 412 contains unmodulated symbols with a binary value of ¼. Referring to Figure 5b, unmodulated symbols are provided to block 510 (1), which displays binary symbols in the modulated symbols according to the selected modulation. For example, when the selected modulation is a duplex phase manipulation (BPR), the binary symbol '0' is represented in the modulated symbol character The +1 character, and the binary symbol '1', show the simulated symbolic value -1. The displayed symbols are covered by the Walsh function, generated by the block 510 (2), in block 510 (4). Then, the sim-woles covered by Walsh
Data request channel
The data request channel 414 is used by the access denominator to report the network of the selected service sector and write the speed of the data transmission over the direct traffic channel. The requested speed of data transmission to the forward traffic channel includes, for example, a four-digit value of the JRC. Referring to Fig. 5a, the JRs are provided to the 506 block (2), which decodes the four-digit value of the JRs in order to obtain biorthogonal codewords. Kodovs'lovo YUR is given to block 506 (4), which repeats every codeword twice. Duplicate code layers are provided to block 506 (6), which displays binary symbols in the modulation symbols according to the selected modulation. The characters shown are
block 506 (8), which covers each character code, for example Walsh code generated by block 506 (10), in accordance with JURSochege, indexed and indexed. Then, each resulting Walsh microframe is provided to block 506 (12), where the MIC-folds of Walsh are covered by a distinct code, for example, the excellent Walsh code generated by block 506 (14). Then, the symbols covered by Walt are provided for further processing.
ASC channel
The ACK channel 416 is used by the access terminal to inform the access network about whether or not the received user data transmitted through the forward traffic channel has been successfully received. Terminal access transmits the bit of the ASC channel in response to the interval of the direct traffic channel, which is associated with the identified preamble, assigned to the access terminal. Bit ASK channel is set to +1 (ASC), if the packet of the direct channel of the traffic received successfully; otherwise, the ASK channel bit is set to -1 (NAC). Users of these direct link channels are considered successful if the value of the CPC, which protects the transferred user data, is identical to the value of RPC, calculated from the decoded user data. Referring to FIG. 5, the backscreen of a channel is repeated in block 508 (2) and block 508 (4) is provided. Block 508 (4) displays binary symbols of the modulation according to the selected modulation. Then, the displayed characters are provided by block 508 (6), which covers each character with the code Woolh, generated by block 508 (8). Covered byOlash characters are then provided for furtherprocessing.
Package availability channel
Each access terminal wishing to transmit informs the service sector that there is a user's data for transmission in future interlacings and / or that the transmission is in the future at intervals to the due date. The interval is considered timely, if theimmediate quality metric for the interval of the reversecommunication channel exceeds the average metric asstand for this reverse link, modi fi cated level of timeliness, determined in accordance withadditional factors, depending on the designcommunications system, and exceeds the threshold value.
The quality metric for the reverse link is determined in accordance with the reverse control channel, for example, by the equation (1):
RI (_Th_Ri Io ((n) (1)
Thr-Rio ((n) <sup>(</sup> )
where Тх_Ріоой (л) - the power on which the transfer is made
control channel for the η-th interval; and
RIiTh_RiIoI (n) - The power of the filtered control tone, filtered by the last interval, is calculated in the η-th interval. The time constant filter, expressed in intervals, is determined to ensure an adequate averaging of the reverse link.
Correspondingly, equation (1) shows how much better or worse the instantaneous return channel in relation to the average return channel. The Terminal Access performs the measurement of Tx_RiOi (n) and Tc_RiOi (n), and calculates the quality metric corresponding to equation (1) for each interval. Then,
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The calculated quality metric is used to estimate the quality metrics for a predetermined number of intervals in the future. The extent of the intervals defined may be equal to 2. The method of such a quality assessment is described in detail in [US Patent No. 6,807,426, entitled "Me (IuSapb Arragaeiz Togh SspseSiipd Tgapztiizioops Sopiogiip and Sottipisa (iop Zuziet, dated October 19, 2004) issued to this applicant.
The method described above for estimating the metric as a feedback channel is given only for example. Therefore, other methods may be used. For example, access terminals can provide information about the control channel and the levels of transmission power of the access traffic channel, which then uses this information to determine timely transmission intervals.
Factors that determine the level of timeliness include, for example, the maximum delayed transmission delay I (from the arrival of the packet to the termination of access to the packet transfer), the number of packets in the queue at the access terminal 1 (length transfer transfer) and the average bandwidth back channel (i) The above-mentioned factors determine the imprinting function 1 (1, I, (i). The impatience function 1 (1, I, () is determined by the desired effect of the input parameters. For example, for the immediate transmission of the first packet, who arrived for the transfer, in the queue erminala access impatience function has a low value alevelychyna increases if the number of pacts vcherzi access terminal exceeds the threshold knowledge-tions. impatience function reaches the maximum-term value when it reaches the maximum in-
Ignat delay transmission. The parameter of the length of the turn and the parameter of the transmission capacity transmit to the impatience function similar to the line.
The use of the three abovementioned parameters as input parameters for the impatience function is given only for the purpose of explanation; any number or even other parameters can be used in accordance with the constructive consideration of the communication system. In addition, the function of impatience may be different for different users, the same, ensuring the differentiation of users. Moreover, functions that are different from the neotropic function can be used to differentiate users. Thus, for example, each user may be assigned an attribute in accordance with the user's OO5. Self-test can serve instead of impatient-chest function. Alternatively, the attribute can be used to modify the input parameters of the function of impatience.
The impatience function 1 (1, I, (i) can be used to modify the quality metric according to equation (2):
RIiTh RI Io ((n)
(2)
1 ((, 1. (1)
Thr-Rio ((n)
The relationship between the values calculated on the equation (2), and the threshold T can be used to determine the levels of timeliness. A set of appropriate levels of timeliness is shown in Table 1 for an example. It must be understood that other meanings and different definitions of the ratios of timeliness can be used instead of those indicated.
Table 1
<tr><td><p>Level of timeliness</p></td><td><p>Definition</p></td></tr><tr><td><p>0</p></td><td><p>No data for transmission</p></td></tr><tr><td><p>1</p></td><td><p>There are data for transmission</p></td></tr><tr><td><p>2</p></td><td><p>There is data for transmission, state of the channel "LLCUU" or impatience for the transfer of "NUN"</p></td></tr><tr><td><p>3</p></td><td><p>There are data for the transfer, the state of the channel "UERU OOOUU" or the impatience for the transfer of "UERU NUN"</p></td></tr>
The appropriate level of timeliness is encoded and transmitted through the PP channel RD channel passed, if the level of timeliness differs from zero, that is, should be defined "no data for transmission". The above four levels of timeliness can be represented as two information bits. It is necessary that the PP channel is accepted as a high-reliability access point because any error in receiving a PP channel may lead to possible scheduling for an access terminal that does not have the requested transmission of user data or has reported a low level of timeliness. Alternatively, such a mistake may result in a planning crash for the access terminal, which reported a high level of timeliness. Accordingly, it is necessary that the two infromation bits be delivered with sufficient on-performance.
As described above, the interval of timely transmission is meant because as a point to-
stupa, and the access terminal have information about a predetermined number of intervals in the May-last, for which the level of timeliness was estimated. Due to the fact that the time interval distribution for the access point and access terminals is synchronized, the access point can determine which interval is a timely transmission interval for which the forwarding terminal communicates the level of timeliness. However, it should be clear that another systematization may be applied, in which the interval of timely transmission is variable, and explicitly transmitted access points.
The value of the RR of channel 418 in accordance with the concepts described above is expressed by a double-digit ratio. Referring to FIG. 5, the value of the PP is assigned to block 512 (2), which encodes a two-bit value for obtaining a codeword. The codeword is given to block 512 (4), which repeats each codeword. A repeatable codeword is provided by block 512 (6), which displays binary symbols in sym-
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modulation wills according to the selected modulation. Then, the displayed symbols are provided to block 512 (8), which covers each character with the Walsh code generated by block 512 (10).
The ocean traffic channel
The YM traffic channel 420 is a channel with variable speed and is based on packets. Data packets for the access point are transmitted at data rates selected from, for example, the next set of data rates: 9.6, 19.2, 38.4, 76.8, and 153.6 kilobits per second (IRrv).
Referring to FIG. 5, the data to be transmitted (data bits) is divided into pre-sized blocks and provided to block 504 (2). Block 504 (2) may include a turbo code. Output signal of block 504 (2) consists of code characters. Code symbols are sealed by block 504 (4). In one embodiment, block 504 (4) holds the time-sealing equipment of the pulse channel signals with inverting the bits. Depending on the speed of the data transmission and the coding speed of the encoder, the sequence of the compacted code symbols is repeated in block 504 (6) as many times as necessary to achieve a fixed modulation symbol rate and is provided to block 504 (8). Block 504 (8) is provided by symbols of the COM RRI channel and embeds the symbol of the PPI channel of the channel in the symbols of the COM traffic channel. Embedded symbols are provided to block 504 (10), which reflects the binary symbols in the modulation symbols according to the selected modulation. Then, the displayed symbols are provided to block 504 (12) which coerces each character with the Walsh code generated by the block 504 (14). The resulting microcadrins are for further processing, which is described in detail below. COM / COM / COM / PNG packets can be transmitted in one or many time intervals, and the given data is determined depending on the data-to-control information and package size assigned to the user-wach.
Reverse COM channel speed indication
SOMRI channel 420 provides indication of the type of packet of the reverse link. The type of packet indication is given to the access point, along with the information that helps the access point in the definition, or the soft decisions from the current packet can be gently combined with soft decisions-from previously accepted packages. Soft-tion to combined advantage of energy values vpozytsiyah bits obtained from previously received packets idekodovanyy (the soft decision) .Tochka access defines the value of bits (zhorstkerishennya) packages by comparing znachenm'yakoho decision on the threshold. If the power corresponding to the bit is greater than the threshold value, the bit is assigned the first value, for example '1', otherwise the second bit is assigned a bit, for example '0'. Then, the access point detects, whether the package was properly decoded, for example by performing a CPC check, or by the help of any other equivalent or corresponding method performed after decoding the packet. If this check fails-
This package is considered to be deleted. However, access point retains the value of a soft decision (if the number of attempts to retransmit for the packet is less than the maximum number of attempts allowed), and when the access point acquires the soft decision values for the current packet, it can combine the stored values of m ' which solution with the meanings of a soft solution for the current package andcompare the combined values of a soft solution withcorrect value.
The methods of combining are well known and, accordingly, there is no need for them to be considered. One suitable method is described in detail in [US Pat. No. 6,011,168, entitled "MeFOSiAnAi ARRAgAiIvToT TiTeTiSePT Re-iAgPzTiIZiOp BIvpDi ZiTOiAssiTiAiIop"] issued to this applicant.
However, in order to comprehensively gently combine packages, the access terminal should know that the packets contain information that can be combo-bootable, as well as a way of combining. The set of PPIs is determined in accordance with the method of combining. The PPI channel may be similar to the RFIC channel conforming to the IZ-856 standard. Referring to FIG. 5, the PPI, the value represented, for example, by 3 bits, is given to block 502 (2), which encodes 3 bits, in order to obtain a codeword of 7 bits.
An example of coding is given in Table 2.
Table 2
<tr><td><p>PPI symbol</p></td><td><p>PPI codeword</p></td></tr><tr><td><p>000</p></td><td><p>0000000</p></td></tr><tr><td><p>001</p></td><td><p>1010101</p></td></tr><tr><td><p>010</p></td><td><p>0110011</p></td></tr><tr><td><p>011</p></td><td><p>1100110</p></td></tr><tr><td><p>100</p></td><td><p>0001111</p></td></tr><tr><td><p>101</p></td><td><p>1011010</p></td></tr><tr><td><p>110</p></td><td><p>0111100</p></td></tr><tr><td><p>111</p></td><td><p>1101001</p></td></tr>
The codeword is given to block 502 (4), which repeats each codeword. A repeatable codeword is provided to block 502 (6), which provides codec module 504 (8) for embedding in the CAN file. Blocks 502 (8), 502 (10) and 502 (12) are not used.
Alternatively, the codeword is provided to the block 502 (4) that repeats each codeword. The repeating codewords are provided to block 502 (6), which provides a codeword to block 504, which depicts binary symbols in modulation symbols from-to selected modulation. Then, displayed symbols are provided to block 504 (10), which covers each character by the Walsh code generated by block 504 (12). The resulting microframes are provided for further processing, which is described in detail below.
TOM Traffic Channel
TOM channel 422 (PPI) traffic is a channel with variable speed and is based on packets. The user data packets for the access point are transmitted at data rates selected from, for example, the next set of data rates of 76.8, 153.6, 230.4, 307.2, 460.8, 614.4,
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921.6 and 1843.2 kBrv. The data to be transmitted (data bits) is divided into blocks defined before the size and provided to block 504 (2). Block 504 (2) may include a speed encoder 1/5 turbo code. The output signal of block 504 (2) consists of code symbols. Code symbols are densified by block 504 (4). Block 504 (4) can be equipped with timing equipment for impulse signals of a channel with inverting bits. In the dependence on the data rate and speed of the encoder encoding, the sequence of capacitive code symbols is repeated in block 504 (6) as many times as necessary to achieve a fixed modulation symbol rate and is provided to block 504 (8). Block 504 (8) transmits symbols to block 504 (10), which displays binary symbols in the modulation symbols according to the selected modulation. The characters shown are provided in block 504 (12),
As part of processing, code symbols are translated into modulation symbols. The symbols of the module-
The TCUM traffic channel is then multiplexed by time division with the RFID channel microframes. However, the TUM channel size does not necessarily correspond to the size of the symbols obtained during the combination of the RFID channel microframes and the TYAM modulation symbols of the traffic channel, which are a packet. Accordingly, the microframes representing the original package symbols are divided into sub-packets that are inserted into the TYUM channel and transmitted. The method of transmission, incremental super-dimensionality, is described [in the patent application of the United States, which is at the same time, published on March 20, 2003 under No.2000053435, entitled "ΕΝΟΗΑΝΟΕΥΟΟΑΑΝΝΕΙ_ 1YTERBEAUIYSBOR ΙΝΟΡΕΛδΕΥ ΠΟΗΑΝΝΕΙ_ 1YTERBEAUIYSBOR ΙΝΟΡΕΛδΕΥ YULTL TNROISTRYUT '], which is based on this the applicant.
Described above transmission of subpackages is described with a link to table 3, which illustrates the parameters of the package. Data rates and associated parameters of the packet are given only for example, depending on the relationship, other data transfer speeds and associated packet parameters can be considered.
Table 3
<tr><td><p>Data rate (KBr)</p></td><td><p>Bits of data</p></td><td><p>Code symbols -valves</p></td><td><p>Modulation type</p></td><td><p>Modulation symbols</p></td><td><p>PPI micro-dray</p></td><td><p>Modulation symbols in the TYUM channel</p></td></tr><tr><td><p>76.8</p></td><td><p>256</p></td><td><p>1280</p></td><td><p>ORZK</p></td><td><p>640</p></td><td><p>384</p></td><td><p>1280</p></td></tr><tr><td><p>153.6</p></td><td><p>512</p></td><td><p>2560</p></td><td><p>OR5K</p></td><td><p>1280</p></td><td><p>192</p></td><td><p>1664</p></td></tr><tr><td><p>230.4</p></td><td><p>768</p></td><td><p>3840</p></td><td><p>OR5K</p></td><td><p>1792</p></td><td><p>128</p></td><td><p>1792</p></td></tr><tr><td><p>307.2</p></td><td><p>1024</p></td><td><p>5120</p></td><td><p>OR5K</p></td><td><p>1856</p></td><td><p>96</p></td><td><p>1856</p></td></tr><tr><td><p>460.8</p></td><td><p>1536</p></td><td><p>7680</p></td><td><p>OR5K</p></td><td><p>1920</p></td><td><p>64</p></td><td><p>1920</p></td></tr><tr><td><p>614.4</p></td><td><p>2048</p></td><td><p>10240</p></td><td><p>OR5K</p></td><td><p>2560</p></td><td><p>64</p></td><td><p>1920</p></td></tr><tr><td><p>921.6</p></td><td><p>3072</p></td><td><p>15360</p></td><td><p>8-R5K</p></td><td><p>3840</p></td><td><p>64</p></td><td><p>1920</p></td></tr><tr><td><p>1228.8</p></td><td><p>4096</p></td><td><p>20480</p></td><td><p>8-R5K</p></td><td><p>5120</p></td><td><p>64</p></td><td><p>1920</p></td></tr><tr><td><p>1843.2</p></td><td><p>6144</p></td><td><p>30720</p></td><td><p>16-OAM</p></td><td><p>7680</p></td><td><p>64</p></td><td><p>1920</p></td></tr>
Considering the data transfer rate in 1843.2 kBrv, the data to be transmitted is divided into blocks of 6144 bits. Encoding at a speed of 1/5 leads to 6144x5 = 30720 decimal characters. 16-OAM modulation is used, which means that each four code symbols result in one modulation symbol. Thus, 30720 code symbols yield up to 30720/4 = 7680 symbols of modulation. Because the TYUM channel contains two half-intervals, the size of the channel is 1024 microseconds per interval. Because the number of PPI microframes in the time interval is 64, there is a space for 2 (1024-64) = 1920 modulation symbols in the TYUM channel.
The first subpacket is formed by entering the first 1920 modulation characters from the full number of 7680 symbols in the TYUM channel modulation. Because the sub packet contains all the information necessary to restore the bits of the data from the packet, if the transfer is successful, that is, the sub packet is decoded, the next packet is transferred. If the transfer fails, the next subpacket will be formed. In one implementation, the next subpacket is formed by the help of the insertion of other 1920 symbols of modulation with the total number of 7680 symbols of modulation in TYUM
channel. This method is repeated until the binary packet is successfully decoded, or until the predetermined amount of transfer or repeated transfers of subpackets is reached.
In order to make it possible for the access point to be a soft combination of subpackets transmitted by this method with another extreme excess (NLRO), each subpacket is assigned an index packet. The sub-packet index is transmitted via the reciprocal TYUM channel indicating the speed, as described below.
The term subpacket was used in the foregoing description for advisory purposes, namely, to explain the concept of incremental over-capacity. Because such a differentiation is basically semantic, the term packet will be used in all cases, except when it is necessary to use the term subpacket for a clear understanding.
Reverse TUUM speed indication channel
TYUMRRY Channel 422 (PPI) serves the same purposes as the CUMRRI channel. Accordingly, TYUMRRICANAL provides indication of the type of the packet of the reverse link (for example, the size of the payload, the speed of coding, modulation, and the like), as well as the sub-packet index used
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is used for incremental redundancy (NACO).
To provide the required indication, the KKI contains 5 bits of information. Referring to FIG. 5a, the value of the QCI is provided to block 502 (2) which, biorthogonally, encodes 5 bits for obtaining a codeword. The codeword is provided to block 502 (4), which repeats each codeword. Duplicate code layers are provided to block 502 (6), which displays binary symbols in the modulation symbols according to the selected modulation. The displayed symbols are further provided to a block 502 (8) that covers each symbol by the Walsh code generated by the block 502 (10), and the resulting microframes are provided for further processing, which is described in detail below.
Table 4
<tr><td><p>The value of the codeword kKi</p></td><td><p>Speed</p><p>package</p></td><td><p>Index of pseudo-keta</p></td></tr><tr><td><p>unit</p></td><td><p>76.8 k</p></td><td><p>1.2</p></td></tr><tr><td><p>2.3</p></td><td><p>153.6 pc</p></td><td><p>1.2</p></td></tr><tr><td><p>4.5</p></td><td><p>230.4 k</p></td><td><p>1.2</p></td></tr><tr><td><p>6.7</p></td><td><p>307.2 k</p></td><td><p>1.2</p></td></tr><tr><td><p>8.9</p></td><td><p>460.8 k</p></td><td><p>1.2</p></td></tr><tr><td><p>10,11,12</p></td><td><p>614.4 k</p></td><td><p>1,2,3</p></td></tr><tr><td><p>13.14.15</p></td><td><p>921.6 p</p></td><td><p>1,2,3</p></td></tr><tr><td><p>16,17,18,19</p></td><td><p>1228.8 k</p></td><td><p>1,2,3,4</p></td></tr><tr><td><p>20.21,22.23</p></td><td><p>1843.2 k</p></td><td><p>1,2,3,4</p></td></tr>
Referring to Table 4, when the access point receives and decodes the code word KKI with the value '0', the access point tries to decode the packet at a speed of 76.8 kBrv. If the packet decoding failed, the access point receives the following packet and decodes the code word KKI with the value '1', the access point can combine the current subpacket with the previously received subscription , since the code word KKI with the value '1' identifies the current received subpacket with an index '2 ', which can be merged with the subpacket with the index' 1 '.
As discussed above, the control channel is a reference signal, that is, the parameters of the control signal, for example, the structure, power p-editions and other parameters known access points. Up to receipt of the control channel, the access point determines the parameters of the reverse control signal, after the influence of the communication channel. With the help of comparison of two sets of parameters, such as parameters for transmission and the received parameters, the access point can estimate the communication channel and the cogeneration demodulate the communication channels. Methods for using the reference signal to estimate the communication channel are known in the art. For example, [in the United States Patent Application Ser. No. 09 / 943,277, which is in the simultaneous examination entitled "UNDERTAKING AI ARRAKATIS ROCK MIBIBETI-RATNEBIMIMATIOM OF THE NAME AND MICHAEL SOMMIRISATIOMZUZTEM, dated August 30, 2001] belonging to the given applicant.
Referring to FIG. 4a-b, the reverse control channel used to estimate the feedback channel and the coherent demodulation of the channels transmitted in the first time half-
The rolls are not available in the second half-interval. However, relatively high transmission power andprocessed coding guarantee that the probability of receiving and correct decoding of the KKI channel vi-juice. Moreover, both the access terminal and the access point are provided with the additional information provided in Table 4.
Thus, the access point can build a hypothesis on what speed of data transmission with which KKI code word was executed transmission, and try to decode the KKI, checking the hypothesis. Access chooses the hypothesis, which is the most viral-bottom in accordance with the metric used to test the hypothesis. As discussed below, the reverse control channel is transmitted from the power output defined by the power management cycles so that the reverse control channel from all access terminals is received by the access point with the same power (Rhryioi). Due to the fact that the power of the KKI channel (P<sub>4</sub>) is related to the power of the transfer over the reverse link (see Equation (3) below), as soon as the KKI channel is correctly decoded, the access point can use the equation (3) to determine the parameters of the KKI channel needed to evaluate the quality of the feedback channel. Accordingly, the CCI channel can be used as a reference signal instead of a control channel for assessing the quality of the reverse link and the coherent demodulation of the channels transmitted to the second half-time interval.
For the correct use of equation (3), the access point should know the value of A, the differential over thermal overvoltage (KOT), between the listening intervals and the transmission intervals of the trafic. The access point measures the value of A, as described in detail below.
Although the SOM traffic channel / COM KKI channel were described as using the same structure that generates the TOM traffic channel and TOM KKI channel, this is not mandatory, there may be separate structures for the COM traffic channel, COM COM Channel and TOM channel traffic and TOM CCIE channel.
Return traffic channel OROM
As already discussed, the transmission speedsence of data depends on the characteristics of the channelcommunication, for example, the ratio of the signal to the interference-rendering and noise (ZIMK); higher data transfer speeds require a higher SHIFT. Because the multi-beam interference makes a significant contribution to interference and noise, muffled interference at high data transmission speeds should significantly improve the performance of the communication system.
One means for suppressing multipath interference is orthogonal frequency division multiplexing (OROM). OROM is an apparent modulation method, the bases of which are explained with reference to FIG. The ORO system of communication 600 accepts user data 602 and provides their block 604. (Preprocessing of user data by block 604, for example, encoding, retransmission, densification, and the like is not shown for the cell.) Block 604 distributes custom data on a plurality of parallel elements 606, the exact ch-layer of which is a function of the dimension of the used
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Fast Fourier Transform (ΕΕΤ). Parallel elements 6θ6 are modulated in block 608 by means of a reverse fast Fourier transform (ΙΕΕΤ). This modulated signal containing a group of signals, the amount of which is equal to the number of para-elements, is then converted to a sub-frequency in a set of auxiliary carriers 610 having a radio frequency, amplified and transmitted through the communication channel 612. The signal is received and then demodulated by block 614, which uses fast Fourier transforms. The decoded data 616 is then redistributed by block 618 to the corn data 620.
The user data is protected from multipower fading at the selected frequency. If the bearer is attenuated, user data only consumes a small portion of the aggregate useful data. Because transmitted user data contains bits of error correction, missed fragmentation may be later restored.
The above EO may be used for transmission in the second half of the TIME interval in such a way. When the access terminal determines that the transfer rate of the user data that is to be transmitted over the reverse link above the predetermined threshold, such as above 614.4 KB, the access terminal transmits the user data using the RAM instead of the IT.
Reverse EO signal channel for speed
To provide the required indication, EO may contain 5 bits of information. The value of PΡII602 (2) is given regardless of user data 602 (1) of block 604 (in FIG. 6A), which distributes PII data for at least one predetermined parallel to the parallel element 602 (2), and which distributes the user data for the parallel remaining elements 606 ( 1). (Preliminary processing of PII data before block 604, for example, encoding, repetition, sealing, and the like, is not shown for brevity.) Next, the processing proceeds as shown in FIG. Again, turning to FIG. 6b, after reception, the signal is received and demodulated in block 614 using EEG. Demodulated Pryon data 616 (2) and demodulated user-data 616 (2) are then redistributed block 618 for providing custom 620 (1) and Pryon values 620 (6).
Alternatively, the user data and PII data are multiplexed and provided to block 604 (shown in Figure 6b). (Preprocessing PII data before block 604, for example, encoding, repeating, scaling, and the like, is not shown for shortcuts.) Then, PII values and custom data are distributed over parallel elements 606. The processing takes place as shown in 6a. Referring to FIG. 6c, after reception, the signal is received and demodulated in block 614 with the use of ΕΕΤ. Demodulated PII data and demodulated user data 616 are then redistributed block 618 for providing custom 620 (1) and PII values 620 (6).
The architecture of the reverse link
FIG. 5 further illustrates the architecture of the reverse link channel. There is a channel 422 (T) of traffic and TIMYPPI
Channel 422 (PTP) (in FIG. 4) is multiplexed by time division in block 514 and provided to the gain setting block 516 (1). After adjusting the gain, the signal, multiplexed with the time division, is given to the modulator 518.
The control channel 412, the data request channel 414, the message channel 416, the request request channel 418 (in FIG. 4) are provided to the corresponding gain units516 (2) -516 (5). After adjusting the gain, the corresponding signals are provided by the modifier 518.
Additionally, the optional SOM Traffic Channel / ΟΜΜΡΡΙ channel 420 (in FIG. 4) is provided with gain settings block 516 (7). After adjusting the amplification, the corresponding signals are provided by the module 518.
The modulator 518 combines input channel signals and modulates the combined channel signals according to an appropriate modulation method, for example, a two-way phase manipulation (BW3K), quadratic phase manipulation (ΩΡ3Κ), quadrature amplitude modulation (ΑΜ), 8 phase modulation (8-P3C) or other modulation methods known to a person skilled in the art. The answer modulation method may vary according to the data rate to be transmitted, the status of the channel and / or other constructive parameters of the communication system. Combining the inputsignals of the channel will be changed by the appropriate way. For example, when the chosen method of mo-duplication is ΩΡ3Κ, the input channel signals will be motivated in phase and quadrature signals, and these signals will be quadraturely expanded.
The modulated signal is filtered by block 520, converted with increasing frequency to the bearer frequency in block 522 and is provided for transferring.
Method of access to the reverse link
As discussed above, the transmission of user data on the reverse link from the traffic terminals of access uses mu-code division multiplexing, for example, ΟΜΜΑ according to the standard Ι3-856. According to the standard Ι3-856, the access terminal can gain access to the carrier frequency of the reverse link, thus autonomously initiating the transmission over the reverse link, not taking into account any potential distribution of the rotational communication channel between the TIMA and the OLYMAR intervals. Initial transmission on the reverse link is at a predetermined speed of data transmission, for example, 9.6 kBz. When the birefringence activity (РΑΒ) received by the reciprocal channel is zero, ter-minal access can increase the transmission speed data to the next higher speed with imo-fidelity p; when ΡΑΒ is equal to one, the terminal
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Access can reduce the speed to the next lower speed with the probability ς. Probabilities p and ς for each speed are either transmitted from the access network to the access terminals, or are established between the access point and the access terminal, for example, when connected.
Accordingly, new access terminals using code division multiplexing, such as SUMA in accordance with standard 13-856, can autonomously initiate transmission to the backlink, without considering any potential redistribution of the link between the TUUM and SUMA at intervals, as described above.
New access terminals using SUMA modulation at designated intervals may independently initiate the transmission at the intervals assigned to the CUM as described above.
Transmissions on the reverse link from the new access terminals using the inter-valves allocated to TUUM are from at least one access terminal in the part of the reverse link channel interval. To illustrate how the structure of the interval with one time interval described above can be extended to use a plural time interval, the data transmission on the reverse link, as described below, uses an interval equal to two time intervals. However, as it was remembered, any number of time intervals can be used to form an interval. Access to the carrier frequency of the return channel for the newterms of access used by the TUUM intervals, depends on the mode of multi-duplication of data.
Those of the new access terminals that use only the SUMA mode, that is, transmit corrosion data, using only SUMMA in intervals, can receive access to the carrier frequency of the reverse link, and in this way, can independently initiate the transmission back channel , as described above.
On the contrary, access to the back-link carrier frequency, thus, for the back channel transmission of new access terminals using TYUM / ARAM or SUMMY TYOM / PRIME mode, that is, transmitting useful data using TYUM / ORUM or SUMM and TYUM / PRIME in TÜV intervals, is planned element of the access network in response to a query term of access to transfer of user data. Access terminals are planned in accordance with the quality metric for the access terminal channel of the reverse link channel, the average quality metric for the reverse link ter-minal access and the impatience function. If the new access terminal is not planned, that is, the ter-minal of access is denied in the transmission permit; the access terminal must terminate the transfer at least in the TYUM / PRIME section of the interval. So,
One example of transmitting data via the reverse link channel for the access terminal requesting the TIM will be shown and explained in the link of FIG. 7. FIG. 7 illustrates the agreement of data transmission to the reverse link for one access terminal, one access terminal to consider only for simplification of understanding. Moreover, at the moment only one access point is available. However, it should be understood that, as described above, the end-point can be extended to a plurality of access terminals. Additionally, the plurality of access points in the access network can receive and decode the originating communication channel from the transmitter access terminal and provide information about the success of the decoded user data, the serving access point. Alternatively, point-of-access points that receive useful information Provide useful information for a central element for decoding with soft decision. Then, the central decoder reports to the serving access point whether the decoding of useful information was successful. The service-point access point transmits the ASC to the RS channel, thereby preventing unnecessary retransmission.
Because the access procedure, the service sector selection, and other click-to-call settings are based on functions similar to the functions of the 13-856 communication system, as described above, this description is not repeated. The only difference is that the new access terminals do not transmit the access channel probe within the TIME / PRIME of the half-time period.
The access terminal (not shown), which has cluster data to be transmitted, and willing to transfer in the TUUM interval, evaluates the metric quality of the back channel of the access terminal and the impatience function for the TUUM interval, and generates the level of timeliness (OO 1). To simplify understanding, it is assumed that all intervals are intended for TUUM. The access terminal evaluates the data transmission speed at which it can transfer and generates the corresponding data types. As already discussed, packet data types not only indicate the speed of data transmission, but also designate the package as either original or one that is repeatedly transmitted. As will be described in more detail below, the method of determining a speed determines the maximum speed supported, corresponding to the amount of data to be transmitted, the maximum power of the transfer of the term-nal access and the transmission power allocated tocontrol channel. Then, the access terminal determines whether the rules are satisfied for the transmission of the following value on the packet readiness channel. The rules may include:
- the next value in the packet's availability channel is transmitted over an interval, such as two-hour intervals;
- the next value in the packet readiness channel transmitted when changing the level of timeliness;
- the next value in the packet readiness channel is transmitted even if the level of timeliness has not changed, unless the permission of the packet has been determined in advance, the time interval; and
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- the packet availability channel is not transmitted, as if the access terminal has no data for transmission.
When the rules are satisfied, the access terminal delivers the requested data rate and the timeliness level of the PP channel over time intervals η and n + 1.
The serving access point (not shown) of the access network receives the return channel and decompounds the information contained in the time intervals η and n + 1 in the interval N + 1. Then, the service access point provides the level of timeliness, the type of data packet, and the requested data rate from all access terminals asking for a free data transfer to the scheduler (not shown). The scheduler plans packets for transmission according to the scheduling rules. As already discussed, the planning rules try to minimize the interference in the reverse link channel among the access terminals, achieving the necessarynecessary OOZ or equality in the distributiondata. The rules are worded as follows:
i the advantage in the transfer is given to the terminal access, which has reported the highest level of self-esteem;
ii. in the case when several access terminals have the same level of timeliness, the over-weight in the transfer is provided to the access terminal with a lower transferable capacity;
iii in the case when multiple access terminals comply with rules (i) and (ii), the terminal to the stupa is chosen randomly; and
ίν. permission to transfer to one of the access terminals with data that is available for transmission, even if the reported level of timeliness is low, in order to maximize the use of the reverse link channel.
Once the planning decision is made, the service access station transmits a scheduling decision for each of the access terminals requesting the transmission, via the RS channel. As shown in the drawing, the serving access point sends a planning solution (CU 0) that rejects the permissions of the access terminal for the transfer of a new packet in the intervals N + 2 and N + 3.
Due to the fact that the access terminal has not received any response on the RS channel, and the access terminal is the data to be transmitted, the access terminal evaluates the access terminal quality link quality metric and the impatience function that this time leads to an increase level of timeliness (OI_ 3). Then, the access terminal generates a type of packet and evaluates the data rate, and provides the packet data type and the requested data transfer rate over the PPI channel, and the timeliness of the reverse link channel in the PR interval in the time intervals n + 2 and n + 3.
The serving access point receives the return channel and decodes the information contained in the participating intervals n + 2 and n + 3 in the interval N + 3. In the first instance, the serving access point provides the level of timeliness, the packet data type, and the requested speed of data transmission from all access terminals requesting data transmission permission to the scheduler. After the planning decision is made, the service station transmits the plan
a solution for each of the access terminals that request permission to transmit, via the RS channel. As shown in the drawing, the serving access point sends a planning solution (ZU 1), which permits the transmission of a new packet in the intervals N + 4 and N + 5.
The access terminal accepts the RS channel and decodes the scheduling solution (Woo 0), transmitted in time intervals N + 2 and N + 3, in the time interval n + 3. In this way, the access terminal refuses to transfer over time intervals n + 4 and n + 5. Terminal access has data that should be transmitted, respectively, the access terminal evaluates the metric of the feedback channel of the access terminal and the function of impatience. As shown in the drawing, the access terminal determines the level of timeliness (OI_ 3), which is the same as the two time intervals behind this transmission, respectively, the terminal to-stupa refuses to transmit the PP of the channel by means of the time intervals n + 4 and n +5
The serving access point takes the planning decision (ZO 1) to allow the transfer of the access terminal, respectively, the serving access point transfers the planning decision to each of the access terminals requesting the transmission per RS channel. As shown in the drawing, the service access point sends a planning solution (ZU 1), which allows the transmission of a new packet in intervals N + 4 and N + 5.
The access terminal accepts the RS channel and decodes the scheduling solution (Xu 1), transmitted in time intervals N + 4 and N + 5, in the time interval n + 5. Addition to the data transmitted in the time intervals n + 6 and n + 7, the access terminal has the data that should be transmitted, respectively, the access terminal evaluates the quality metric of the return link to the access terminal and the function of impatience. As shown in the drawing, the access terminal determines the level of timeliness (OI_ 2), respectively, the term access input PP channel in time intervals p + 6 and n + 7. Due to the fact that the access terminal is allowed to transmit, the access terminal further transfers the user data in the TUM / ORUM of the part of the roaming traffic channel in the time intervals n + 6 and + 7.
As shown in FIG. 7, the access terminal accepts transmission permission after two requests. Each packet request may be linked to the same packet or other package. If each packet request is linked to different packets, the water implementation, the access terminal independently decides which packet to send. As an alternate, the transfer permission is associated with the first unsatisfied packet request. However, other strategies completely fall within the scope of the invention.
The serving access point receives a reverse channel and decodes the information of the PP channel contained in the time intervals n + 6 and n + 7, in the time interval N + 7, and the user data contained in the time intervals n + 6 and n + 7, in the time intervals N + 8 and N + 9. Then, the serving access point provides the level of timeliness, data type of the packet and the requested data rate from all access terminals asking for a permit in advance of the data to the scheduler. Once the planning decision is taken, the service station-
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Access provides a planning solution for each of the access terminals requesting permission beforehand, via the RS channel. Since the access point has successfully decoded the user data, the service access point transmits a planning solution (3y 1) that allows the transmission of the new packet in the other nodes N + 10 and N + 11.
Access terminal does not send PPs either in the time intervals n + 8 and n + 9, nor in the time intervals n + 10 and n + 11, because when evaluating the terminal metrics quality feedback channel access terminal and functions of impatience, the rules for transferring on-theft values in the packet readiness channel are dissatisfied.
The access terminal receives the RS channel and decodes the scheduling solution 3Y1 in the time interval n + 11. Because the access terminal is allowed to transfer, the access terminal further transmits the data in the TUM / ORUM of the parts of the timely intervals n + 12 and n + 13.
The serving access point receives turn-tion channel and decodes the user data schomistyatsya in time intervals n + 12 and n + 13 in Cha-owl intervals Ν and Ν + 14 + 15. Because the access point successfully decoded user data, but the service access point does not have a request for a pending packet, the access point does not transfer the PC.
The case where the access point could not correctly decode the useful information sent by the reverse link in the time interval of + 6 and n + 7 is shown in FIG.
The serving access point receives a turn-tion channel and decodes the information PP channel schomistytsya in time intervals n + 6 and n + 7 in time-vomu range Ν + 7, and user data Miss shrink in time intervals n + 6 and n + 7, in the time intervals N + 8 and N + 9. Then, the serving access point provides the level of timeliness, data type of the packet and the requested data rate from all access terminals asking for a permit in advance of the data to the scheduler. Once a scheduled decision is made, the serving access station transmits a scheduling solution for each of the access terminals requesting permission beforehand, via the RS channel. Since the access point could not successfully decode the user data, the serving access point transmits the scheduling solution (3YU-1), which allows the retransmission of the previously transmitted packet in the time intervals N + 10 and N + 11.
Access terminal does not send PPs either in the time intervals n + 8 and n + 9, nor in the time intervals n + 10 and n + 11 because, when evaluating the terminal metricsquality of the back channel of the access terminal andimportance functions, the rules for the transfer of the next value in the packet readiness channel are dissatisfied. However, the access terminal sends RRs in the intervals n + 10 and n + 11, because when the terminal evaluates the metric of the quality of the feedback channel of the access terminal and the function of impatience, the level of impatience has changed.
The access terminal receives the RS channel and decodes the scheduling solution 3YU-1, sent in the time interval N + 10 and N + 11, in the time interval n + 11.
Because the access terminal is allowed to retransmit the previously transmitted packet rather than the new packet, the access terminal has data that should be transmitted, respectively, the access terminal evaluates the access terminal quality feedback channel and the impatience function. As shown in the drawing, the access terminal determines the level of timing (OO 3), respectively, the access terminal transmits the PP channel in the time intervals of p + 12 and n + 13. More than that, the access terminal re-transfers the user data in TYUM / n time intervals n + 12ip + 13.
The serving access point receives a reverse channel and decodes the PP data channel contained within the time intervals n + 12 and n + 13, in the time interval N + 13, and the user data contained in the time intervals n + 12 and n + 13 , in intervals N + 14 and N + 15 in the interval. Then, the attendant access point provides the level of timeliness, the type of data packet and the requested data rate from all access terminals asking for a free data transfer to the scheduler. Once a scheduled decision is made, the serving access station transmits a scheduling solution for each of the access terminals requesting permission beforehand, via the RS channel. Since the access point has successfully decoded user data, the service access point transmits a planning solution (3Y1), which allows the transmission of the new packet in the other boxes N + 14 and N + 15.
The access terminal receives the RS channel and decodes the scheduling solution 3Y1 in the time interval n + 15. Because the access terminal is allowed to transfer, the access terminal further transmits the useful data in TYUM / ORYM in parts of timely intervals of time n + 16 and n + 17 .
The serving access point receives the reverse link and decodes the user data contained in the time intervals n + 16 and n + 18, in the time intervals N + 18 and N + 19. Because the access point successfully decoded the user data, but the service access point does not have a pending request request, the access point does not transfer the PC.
It should be understood that the serving user can plan the access terminal in accordance with the latest received request for transmission.
It should be clear that the serving so-so access may not be able to accept the PP channel. Since the access terminal does not transmit the PP of the channel until the level of timeliness has changed, to prevent a failure in the communication session, the access terminal re-sends the PP channel after a predetermined number time
It should be understood that the packet access network may not be able to accept the package even after several attempts to retransmit. In order to prevent excessive retransmission attempts, the communication system may refuse attempts to retransmit after a certain number of retry attempts (interval of preservation). Then, pass-by-packets are processed in a different way, for example, a radio communication protocol (RBR).
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Manage the power of the back channel of communication
As already discussed, at least one access terminal in the sector transmits the data flow to the back channel, using TIMA because the communication system of all terminals transmits at the same frequency, each transmission terminal acts as an interferential source for the terminals access neighboring sektorah.Dlya minimize such interference in zvorotnomukanali communication and maximizing capacity potuzhnistperedachi control for each channel thermo-nala access is governed by two cycles keruvannyapotuzhnistyu. Then, the capacity of the reset of the remaining service channels and the ΟΜΜ channels of traffic as the proportion of transmission power to the control channel are determined. The transmission capacity of the Channel Traffic is defined as the ratio of traffic-to-control signal strength for the given data rate, adjusted by the aid of the excess of thermal overload (POT), between service intervals and intervals of transmission of traffic. Exceeding the thermal cut-off between the receiver noise level and the total received power, as determined by the terminal to-stupa.
Control the power of the control channel
Cycles power management control ka-guiding channel such cycles in ΟϋΜΛ system disclosed [US vpatenti №5,056,109, entitled "ΜΕΤΗΟϋ ΑΝϋ ARRARATyZ ΡΘΡ ΟΟΝΤΡΟΙ_Ι_ΙΝ <3ΤΡΑΝ3ΜΙ33ΙΟΝ Roscher ΙΝ Α ΟϋΜΑ ΟΕΙ_Ι_υΐ_ΑΡΜΟΒΙΙ_Ε ΤΕΙ_ΕΡΗΟΝΕ 3Υ3ΤΕΜ"], published applications, nick invention, and incorporated herein by by the link. Other ways of controlling power are also contemplated and are within the scope of the present invention.
The first cycle of power management (external cycle) adjusts the control point so that the desired level of performance is supported, as it is estimated, but in the sector that accepts the feedback channel in a better metric of quality. The productive level includes, for example, the rate of erasure of the channel and the frequency of erroneous packets (PPE) in the traffic channel. The control point is updated in accordance with the following rules:
- the control point decreases if the speed of the IPO channel is less than the threshold value, eg 25%, and the packet has been successfully decoded, provided that the PM-PII was successfully detected;
- the control point is increased if the speed of the IPO erase of the channel is greater than the threshold value, and the packet has not been successfully decoded, provided that the UML-PII has been successfully detected;
- the control point is updated periodically, through each predetermined number of frames, updates must be followed by the choice of spacing by the point of to-stupa. The rate of abrasion of the channel is measured at this interval. If during the interval
An update has not been received by the PM traffic channel, then the control point is updated only in accordance with the speed of the IPO channel erase. If the number of frames is predetermined more than one frame, the control point is updated either after the interval of the update, or if it is not possible to successfully decode the IP packet, that the UML-PII has been successfully detected.
The second power control cycle (internal cycle) adjusts the power of the access terminal transmission so that the metric of the feedback channel is maintained at the control point. The quality metric includes the energy ratio from the microframe to the noise plus the interference (Εορ / Nί), and is measured by the access point , which feeds back channel. Accordingly, the control point is also measured in Εορ / Νί. The access point equals the measured Εορ / Nί with the control point of the power control. If measured Εορ / Nβ is greater than a control point, the access point dispenses the power control message of the access terminal to reduce the transmission power of the access terminal. On the contrary, if measured Εορ / Ν is less than a control point, the access point dispenses the power-control message of the access terminal to increase the transmission power of the access terminal. The power management message is implemented as a single power management bit. The first value of the power control bit ("υρ") gives the access terminal command to increase the transmission power of the access terminal, and the power control bit ("bump") gives the access terminal command to reduce the transmission power of the access terminal. The access terminal, which receives power control bits of a plurality of sectors, reduces transmission power if one of the power control commands equals "SIOMP" and increases in all other cases. ) gives the command to the access terminal to reduce the transmission capacity of the access terminal. The access terminal, which receives power control bits of a plurality of sectors, reduces transmission power if one of the power control commands equals "SIOMP" and increases in all other cases. ) gives the command to the access terminal to reduce the transmission capacity of the access terminal. The access terminal, which receives power control bits of a plurality of sectors, reduces transmission power if one of the power control commands equals "SIOMP" and increases in all other cases.
Power control bits for all access terminals associated with the access point are transmitted over the MAC channels in the forward link.
Manage the power of service channels that are left, and the Moon Traffic Channel
After the transmission power is determined for the control channel in the time interval, due to the power control cycles, the transmit power for the remaining service channels and the traffic channel is determined, as the transmission power of a particular service channel and the EOF channel to power transmission of the control channel. The ratio for each service channel and the channel length is determined according to simulation, laboratory experiments, field trials and other in-kind methods known to a specialist in this field of technology.
So, for example, the power of the LO
Traffic Channel / PIP channel, assigned to power
the control channel of the return channel of the traffic
ka, depends on data rates like
shown in Table 5.
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Table 5
<tr><td><p>Data rate (KBr)</p></td><td><p>The gain of the data channel to the control (JI)</p></td></tr><tr><td><p>0</p></td><td><p>(data channel is not transmitted)</p></td></tr><tr><td><p>9.6</p></td><td><p>□ AiToToTiTiOiTo + YuAiTiToTiKi6k6 + 3.75</p></td></tr><tr><td><p>19.2</p></td><td><p>□ AiToToTiTiOiTo + YuAiTiToTiTiKii9k2 + 6.75</p></td></tr><tr><td><p>38.4</p></td><td><p>□ AiToToTiTiOiTo + YuAiTiToTiyu38k4 + 9.75</p></td></tr><tr><td><p>76.8</p></td><td><p>□ aIaOTT5eIiot + YaiiAOTT5eї76k8 + 13.25</p></td></tr><tr><td><p>153.6</p></td><td><p>□ aIaOTT5eIiot + YuAiAOTT5eІІ53k6 + 18.5</p></td></tr>
Manage the TYUM power of the traffic channel
Required power of transmission of the traffic channel is also determined in accordance with the power of the transmission of the control channel. In one implementation, the required power of the traffic channel is calculated using the following formula:
Ri = Pryoriy-C (g) · A (3)
where: Ri - transmission channel capacity of traffic;
Rhiii - power of control channel control;
C (g) - the ratio of the power transmission of the transistor control channel for a given speed r; and
A - the estimated differential exceeds superheat (ROT), between service intervals and traffic intervals. The term exceeded by the thermal is the difference between the noise level of the processor and the total received power, as determined by the access terminal.
Measurement of the ROT in the interval of the transmission of the service belt transmission (ROTOEWE + IEA) and in the traffic transfer interval (ROTIGagIS), necessary for the calculation of the A point of access, is well known in the field oftechnology. Such a measurement is described in the disclosure of [US Pat. No. 6,192,249, entitled "MayioSap Arragueis Toggueus Igip IoAsIpd ESIITIAiop"] issued to the applicant of the present invention. After the level of noise is measured, both for service intervals, and for intervals of traffic, A is calculated using the following formula:
A-ROTIGATTIS-ROTOEWEI-NEAS (4)
Calculated value A then passes point access, for example, on a traditional RA channel, unless the access terminals that use TUVA are in the communication system or the new RA channel, if traditional and new access terminals operate in the communication system .
Alternatively, the value of A represents the ROT differential rating given by the equation (3). The initial value A is determined, respectively, in modeling, laboratory experiments, field trials and other engineering techniques known to a person skilled in the art. Then, the value A is tuned according to the frequency of the appearance of the false packets (RER) in the inverse of the communication channel, so that the determined RER is supported for the maximum allowed number of referrals of the packet. Frequency of false packets in the reverse link is determined in accordance with the ASC / IASC packet backcountry connection, as described above. In one realization, the value of A increases to the firstDetermine-in advance the value if the ACK was received in the course of N attempts to retransmit from the maximum number of M attempts to retransmit. Similarly
the value of A decreases to the second definite value, if the ACK was not obtained in the mode of N attempts to retransmit from the maximum number of attempts to retransmit.
From equation (3) it turns out that the capacity of the traffic channel transfer is a function of the speed of the data transmission. In addition, the access terminal is limited to the maximum transmission power (Pt). In this way, the access terminal first determines which amount of power is available from the Pt and the determined Rhiii. Then, the access terminal determines the number of data to be transmitted and selects the data rate of the data in accordance with the existing power and the amount of data. Then, the access terminal solves the equation (3) to determine whether the effect of the estimated noise differential And to exceed the maximum available power. If the maximum available power of transmission is exceeded, then the access terminal decreases the data transmission speed and repeats the process.
The access point can control the maximum data transmission speed at which the access terminal can transmit, by providing the access terminal with the maximum allowable value C (g) A through the traditional RA channel, if only the access terminals operating in the TUMA are represented in the system ' a new RA, if traditional and new access terminals are functional in the communication system.
Alternatively, the access terminal determines the value C (g) A according to the traffic power ratio to the control channel, and the score is Adjusted according to the frequency of occurrence of error packets (RPPs) in the reverse link determined in accordance with the ASC / IASC , as described above.
Modification of packet decoding
The above ratio of power transmission of traffic to the control channel C (g) for the given speed r is determined taking into account the number of retransmissions (transfers) of the packet for correct decoding. Thus, if the package is to be properly decoded for a single transmission, then the ratio of the transmission power of the control channel is greater than the ratio of the traffic transmission to the control channel, if one or more transmissions are allowed.
The number of transmissions (retransmissions) determines the latency that affects the quality and class of data transmission services provided (OO). Due to the fact that different types of packets, for example, voice packs, file transfer packets and so on, require different OOPs for different types of packets.
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the different transmission power ratios can be assigned to the control channel. Thus, for example, when the access terminal determines that a voice packet requiring a certain OOZ (low latency) must be transmitted, the access terminal uses the first relationship - the transfer of traffic to the control channel, which is more than the second relation of traffic transmission power to the control channel, which is used when it must be transmitted to the ETR package, which requires another OOZ (high latency).
Manage PPI channel power
As described above, the PPI channel is multiplexed with time division with a useful traffic channel. In order to avoid the transmission of PPIs in the time interval of the traffic channel / PPI on the same level as the power other than the power level of the traffic, the power distribution between the PPI channel and the traffic channel is controlled by the number of microframes allocated to the PPI channel as a function of the speed of the data transmitted .
In order to ensure a correct decoding of a certain number of microframes containing Walsh codes coded words, the required power can be determined. Alternatively, if the known traffic / payload capacity to be transmitted and the PPI portion of the hourly interval of the traffic channel / PPI are transmitted with the same power, then the number of microframes can be determined, which is adequate for reliable decoding of the PPI channel . Accordingly, as soon as determined speed of data transmission, and, accordingly, determined power for transmitting the time interval of the traffic channel / PPI, this is the number of microframes, selected PPI channels. The access terminal generates a packet binary type, biorthogonally encodes five bits for receiving characters, and fills the number of frames allocated to the PPI channel by symbols. If the number of microframes,
AT and AR structures
The access terminal 900 is shown in FIG. Sig-nails of the direct communication channel are received by ante-noy 902 and sent to the preprocessor 904, which contains the receiver. The receiver filters, amplifies, demodulates and digitizes the signal provided by the antenna902. The digitized signal is provided by a demodulator (SUEMO) 906 that provides demodulated data to the decoder 908. The decoder 908 performs functions that are rotated by the signal processing functions applied by the access terminal and provides the decoded user data to the data receiver 910. Then, the decoderconnected to the controller 912, giving controller 912 service data. The controller 912 then communicates with other blocks forming the access terminal 900 to provide an appropriate control of the operation of the access terminal 900, for example, data encoding, power management. The controller 912 may include, for example, a processor and an '
The user data to be transmitted to the access terminal} is provided by the source 914 of the data according to the instruction of the controller 912 of the encoder 916. The encoder 916 is then provided by the data service controller 912. The encoder 916 encodes the data and provides the coded data to the modulator (MOY) 918. Data processing in the modulator 918 encoder 918 is executed in accordance with the generation of the reverse link as described above in the text and shown on drawings Then, the processed data is provided to the transmitter within the preprocessor904. The transmitter modulates, filters, amplifies, and turns the signal of the reverse link through the di-ester, through the antenna 902, on the reverse link of the communication.
The controller 1000 and the access terminal 1002 are shown in FIG. The user data generated by the data source 1004 is provided via an interfaced unit, for example, via a packet network interface (RPT ^ (not shown), controller 1000. As described, the controller 1000 communicates with a plurality of access terminals by generating access memory. (Only one the access terminal 1002 is shown in FIG. 10 for ease). The user data is provided by a plurality of selector elements (only one element 1002 of the selector is shown in Figure 10 for simplicity). One element of the selector is assigned to control the exchange of user data between the source The data 1004 and the data receiver 1006 and one or more base stations under the control of the call control processor 1010. The call management processor 1010 may include, for example, a processor and a processor associated with a ' An environment that contains a set of inputs executed by the processor. As shown in FIG. 10, the selector element 1002 provides the user data of the data queue 1014, which contains the user data to be transmitted to the access terminals (not shown) served by the access terminal 1002. In accordance with controller scheduler 1016, user data provides queue 1014 of the data element element 1012 of the channel. The channel element 1012 processes the user data in accordance with the standard IZ-856 and delivers the processed data to the transmitter 1018. The data is transmitted through the forward link via the antenna 1022. The signals from the back-end communication channel from the access terminals (not shown) are received by the antenna 1024 and are provided to the receiver 1016. The receiver 1016 filters, amplifies, demodulates and digitizes the signal provided by the antenna 1024, and provides a digitized signal to the channel element 1016. The channel element 1016 performs a function that is reversible to the signal processing functions associated with the access point, and provides decoded user data to the selector element 1012. The Lecturer 1012 sends user data to the data provider 906 and the service data of the call processor 1010.
It will be appreciated by one skilled in the art that, although the flowcharts depict for simplicity successive operations, some of the steps may be implemented in real implementation in parallel.
One skilled in the art must be clear
The fact that information and signals can be
using any of a number of techno-
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logos and techniques. For example, data, instructions, commands, information, signals, beats, symbols, and microcapses encountered in the description above may be represented by voltages, current, electromagnetic waves, magnetic fields, or particles, optical fields or part-nons or any combination of them.
It will be appreciated by one skilled in the art that any illustrative logical blocks, modules, circuits, and steps of the algorithms described in connection with the embodiments disclosed herein may be implemented by electronic hardware, computer-not-software security or a combination of them. For a clear illustration of this interchangeability of hardware and software, various components, blocks, modules, circuits and stages were described, in general, in terms of their functionality. Whether such functionality will be realized in hardware or software will depend on the particular application and constraints imposed on the whole system. Those skilled in the art can implement the described function in a variety of ways for each particular add-on, but such implementation decisions should not be interpreted as such,
Various illustrative logical blocks, modules, and circuits described in connection with the implementations disclosed herein can be implemented or executed with the help of a general purpose processor, a digital signal processor (UPS), a specialized integrated circuit (ALIS ), programmed by the user gate matrix (RRCA) or other programmable logic, discrete gate circuit or transistor logic, discrete hardware components, or any combination thereof, designed to perform the described functions. . A general-purpose processor may be a microprocessor, but, alternatively, the processor may be a traditional processor, controller, microcontroller or terminal automaton. The processor can also be implemented as a combination of computing devices, for example, SUZ and microprocessor, sets of microprocesses,
The steps of the method or algorithm described in connection with the implementations disclosed herein can be implemented directly in hardware, in a program module performed by the processor, or a combination thereof. The program module can be located in the RAM, flash memory, ROM memory, ERROR memory, EERROM memory, registry, on hard disk, on a removable disk, on-ROM or on a memory a generating medium of another type known in the art. Sample
The storage medium is connected to the processor so that the processor can read the information from and write information to the memory environment. Alternatively, the storage medium may be integrated-not in the processor. The processor and the storage medium can be located in the AZIS. AZIS can be located in the user terminal. One alternative, the processor and the storage medium-above can be located in the discrete components of the user terminal.
The foregoing description of the disclosures is realized so that a specialist in the field of engineering can implement and use the present invention. Various modifications to these implementations will be apparent to those skilled in the art, and the basic principles defined herein can be applied to other implementations without leaving the limits of the volume of output. Thus, the present invention is not intended to restrict to the realities presented herein, but, on the contrary, corresponds to the broadest volume, which is in accordance with the principles and distinguishing features disclosed herein.
Part of the disclosure of the present invention comprises materials that are protected by copyright law. The copyright owner does not have a list against the exact reproduction by any patent document or its disclosure, in the form in which it is in the patent archives archive, but in all other cases, reprinting is prohibited.
List of reference positions
FIG. 1
100 AR
104 AT
110 p
FIG. 2
202 Interval
202A, 202V half interval
204A, 204B Control package
206A, 206B MAC
Data 208A, 208B
FIG. 5
502 (2), 504 (2), 506 (2) encoder
FIG. 9
906 Demodulator
908 Decoder
910 Data receiver
912 Controller
914 Source of data
916 Codifier 918
Modulator
FIG. 10
1004 Source of data
1006 Data Receiver
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400
Z
"2 (1X1) 422 (1) (2) 4А2 <АХη)" ЧуХП 422 (тХ2) 422 (ёю®
ІІІ ІІІ
<tr><td><p>420 (1) -►</p></td><td><p>Τ & ΚΚΙ</p></td><td><p></p></td><td><p></p></td><td><p>• · ·</p></td><td><p></p></td><td><p>420 (t) - *</p></td><td><p>T & N</p></td><td><p></p></td><td><p></p></td><td><p>• · ·</p></td><td><p></p></td></tr><tr><td><p>418 (1) - *</p></td><td><p>Rh</p></td><td><p></p></td><td><p></p></td><td><p></p></td><td><p></p></td><td><p>418 (t)</p></td><td><p>RK</p></td><td><p></p></td><td><p></p></td><td><p></p></td><td><p></p></td></tr><tr><td><p>416 (1) - *</p></td><td><p>ASA</p></td><td><p></p></td><td><p></p></td><td><p></p></td><td><p></p></td><td><p>416 (t) - * -</p></td><td><p>ASA</p></td><td><p></p></td><td><p></p></td><td><p></p></td><td><p></p></td></tr><tr><td><p>414 (1) - * -</p></td><td><p>g ®</p></td><td><p></p></td><td><p></p></td><td><p></p></td><td><p></p></td><td><p>414 (s) - *</p></td><td><p>OKS</p></td><td><p></p></td><td><p></p></td><td><p></p></td><td><p></p></td></tr><tr><td><p>412 (1) -</p></td><td><p>RPiOT</p></td><td><p></p></td><td><p></p></td><td><p></p></td><td><p></p></td><td><p>412 (t) - * - G C <C</p></td><td><p>RIVER</p></td><td><p></p></td><td><p></p></td><td><p></p></td><td><p></p></td></tr><tr><td><p></p></td><td><p></p></td><td><p>410 (1X1)</p></td><td><p>410 (1X2)</p></td><td><p></p></td><td><p>410 (1Xa)</p></td><td><p>) b and></p></td><td><p></p></td><td><p>4І0 (pi) (I)</p></td><td><p>410 (bs2)</p></td><td><p></p></td><td><p>410 (tH1)</p></td></tr><tr><td><p></p></td><td><p></p></td><td><p></p></td><td><p></p></td><td><p></p></td><td><p>1</p></td><td><p></p></td><td><p></p></td><td><p>' <sup>1 1</sup></p></td><td><p></p></td><td><p></p></td><td><p></p></td></tr><tr><td><p></p></td><td><p>406 (1)</p></td><td><p></p></td><td><p>403 (1)</p></td><td><p></p></td><td><p></p></td><td><p>406 (pi)</p></td><td><p></p></td><td><p>4 <f</p></td><td><p>her)</p></td><td><p></p></td></tr><tr><td><p></p></td><td><p></p></td><td><p>404 (1)</p></td><td><p>1, III <1111,1. ■ ■</p></td><td><p></p></td><td><p>404 (tp)</p></td></tr><tr><td><p></p></td><td><p></p></td><td><p></p></td><td><p>./-402</p><p>- € - *</p></td></tr>
FIG. 4A
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422 (T) 422SVNI) 422 (7)
1 TOMA Interval
FIG. 4B
1 ТММА Interval
FIG. 4U
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62
63
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And the interval
Mr.
N + 1 N + 2 N + 3 N + 4 N + 5 N + 6 N + 7 N + 8 N + 9 N + N N + 11 N + 12 N + 13 N4 14 N + 15 N + 16 N + 17 N + 18 N + 19
TOM / OROM package £ & $] GI) M / OROM service pack / COM
data 1 roZ Data 2 part interval
FIG 8
□
TOM / OTPM
part
the interval
Computer layout T. Chopeliev Signature Circulation 28 copies.
Ministry of Education and Science of Ukraine
State Department of Intellectual Property, st. Uritskogo, 45, Kyiv, Ukraine, 03680
State Enterprise "Ukrainian Institute of Industrial Property", st. Glazunova, 1, m. Kiv - 42, 01601
Contents27
33 members in 15 offices
Priority claims7
| Document | Office | Kind | Date |
|---|---|---|---|
| 10389091 | United States of America | – | |
| 10389170 | United States of America | – | |
| 10389656 | United States of America | – | |
| 10389716 | United States of America | – | |
| 38909103 | United States of America | A | |
| 10389091 | – | – | – |
| US20030389091 | – | – | – |
Members33
| Document | Office | Kind | |
|---|---|---|---|
| US2004179469A1 | United States of America | A1 | |
| US2004179480A1 | United States of America | A1 | |
| US2004179494A1 | United States of America | A1 | |
| US2004181569A1 | United States of America | A1 | |
| AU2004221069A1 | Australia | A1 | |
| CA2519124A1 | Canada | A1 | |
| WO2004084450A2 | World Intellectual Property Organization (WIPO) | A2 | |
| TW200423770A | Taiwan Province of China | A | |
| WO2004084450A3 | World Intellectual Property Organization (WIPO) | A3 | |
| MXPA05009798A | Mexico | A | |
| KR20050114656A | Republic of Korea | A | |
| EP1602187A2 | European Patent Office (EPO) | A2 | |
| BRPI0408329A | Brazil | A | |
| RU2005131622A | Russian Federation | A | |
| CN1788444A | China | A | |
| JP2006520573A | Japan | A | |
| EP1602187B1 | European Patent Office (EPO) | B1 | |
| AT354217T | Austria | T | |
| DE602004004763D1 | Germany | D1 | |
| DE602004004763T2 | Germany | T2 | |
| UA85552C2This record | Ukraine | C2 | |
| RU2364026C2 | Russian Federation | C2 | |
| AU2004221069B2 | Australia | B2 | |
| US2010014487A1 | United States of America | A1 | |
| KR20100012004A | Republic of Korea | A | |
| AU2004221069C1 | Australia | C1 | |
| CN1788444B | China | B | |
| US7746816B2 | United States of America | B2 | |
| KR100975242B1 | Republic of Korea | B1 | |
| JP2010213295A | Japan | A | |
| KR100987613B1 | Republic of Korea | B1 | |
| CN101931521A | China | A | |
| US8514832B2 | United States of America | B2 |
Numbers
- Publication
- 00085552
- Publication, DOCDB
- 85552
- Publication, EPODOC
- UA85552
- Application
- 200509592
- Application, DOCDB
- 2005009592
- Application, EPODOC
- UA20050009592
Titles3
- English
- METHOD AND DEVICE FOR CONTROL OF CHANNEL POWER
- Russian
- ?????? ? ?????????? ??? ?????????? ????????? ??????
- Ukrainian
- ?????? ? ???????? ??? ????????? ?????????? ??????
Classification
- CPC, 4
- H04W52/16
- H04J9/00
- H04J11/0026
- H04W52/48
- IPC, 6
- H04J13 02
- H04B7 005
- H04B7 26
- H04J9 00
- H04J11 00
- H04L25 02