A method for transmitting control channel in a mobile communication system
Abstract
Method for transmitting an uplink channel signal in a radio access system, the method comprising: transmitting, by a user equipment UE in a DTX discontinuous transmission mode to a node B, a first channel signal that includes information for controlling through a first channel in a radio frame comprising a compressed mode transmission cut-off, in which the first channel signal is used to detect a second channel signal; and transmitting, by the user equipment UE to node B, a second channel signal through a second channel at a predetermined time after the UE initiates a transmission of the first channel signal in the radio frame, characterized in that part of a preamble of the first channel signal is not transmitted only when the part of the preamble of the first channel overlaps in the compressed mode transmission cut and remaining parts of the first channel signal are transmitted.
Term
1.4 yearsto projected expiry
Projected expiry 4 February 2028, counted from filing; an application has no term until it is granted.
- Priority
- Filed
- Published
- Today
- Projected expiry
13 claims: 6 independent, 7 dependent
- 1CLAIMS REIVINDICACIONES 1. Method for transmitting an uplink channel signal in a radio access system, the method comprising:1. Método para transmitir una señal de canal de enlace ascendente en un sistema de acceso de radio, comprendiendo el método: transmitir, por un equipo de usuario UE en un modo de transmisión discontinua DTX a un nodo B, una primera señal de canal que incluye información de control a través de un primer canal en una trama de radio que comprende un corte de transmisión de modo comprimido, en el que se usa la primera señal de canal para detectar una segunda señal de canal;y transmitting, by a user equipment UE in a DTX discontinuous transmission mode to a node B, a first channel signal that includes control information through a first channel in a radio frame comprising a compressed mode transmission cut-off , in which the first channel signal is used to detect a second channel signal;and transmitir, por el equipo de usuario UE al nodo B, una segunda señal de canal a través de un segundo canal en un tiempo predeterminado después de que el UE inicie una transmisión de la primera señal de canal en la trama de radio, caracterizado porque transmitting, by the user equipment UE to node B, a second channel signal through a second channel in a predetermined time after the UE initiates a transmission of the first channel signal in the radio frame, characterized in that part of a preamble of the first channel signal is not transmitted only when the part of the preamble of the first channel overlaps in the compressed mode transmission cut and remaining parts of the first channel signal are transmitted. parte de un preámbulo de la primera señal de canal no se transmite sólo cuando la parte del preámbulo del primer canal se solapa en el corte de transmisión de modo comprimido y se transmiten partes restantes de la primera señal de canal.
- 2Método para recibir una señal de canal de enlace ascendente en un nodo B de un sistema de acceso de radio, comprendiendo el método:two. Method for receiving an uplink channel signal on a node B of a radio access system, the method comprising: receiving, from a user equipment UE in a DTX discontinuous transmission mode, a first channel signal that includes control information through a first channel to detect a second channel signal in a radio frame comprising a transmission cut-off compressed mode;and recibir, desde un equipo de usuario UE en un modo de transmisión discontinua DTX, una primera señal de canal que incluye información de control a través de un primer canal para detectar una segunda señal de canal en una trama de radio que comprende un corte de transmisión de modo comprimido;y receiving, from the UE user equipment, a second channel signal through a second channel at a predetermined time after the UE initiates a transmission of the first channel signal in the radio frame, characterized in that recibir, desde el equipo de usuario UE, una segunda señal de canal a través de un segundo canal en un tiempo predeterminado después de que el UE inicie una transmisión de la primera señal de canal en la trama de radio, caracterizado porque part of a preamble of the first channel signal is not transmitted only when the part of the preamble of the first channel overlaps in the compressed mode transmission cut and remaining parts of the first channel signal are transmitted. parte de un preámbulo de la primera señal de canal no se transmite sólo cuando la parte del preámbulo del primer canal se solapa en el corte de transmisión de modo comprimido y se transmiten partes restantes de la primera señal de canal.
- 3Method according to claims 1 or 2, characterized in that the first channel is a dedicated physical control channel DPCCH, and the second channel is an extended dedicated E-DCH channel comprising at least one of an extended dedicated physical data channel E-DPDCH and an extended dedicated physical control channel E-DPCCH. 3. Método según las reivindicaciones 1 ó 2, caracterizado porque el primer canal es un canal de control físico dedicado DPCCH, y el segundo canal es un canal dedicado extendido E-DCH que comprende al menos uno de un canal de datos físico dedicado extendido E-DPDCH y un canal de control físico dedicado extendido E-DPCCH.
- 8Aparato en un modo de transmisión discontinua DTX para transmitir un canal de enlace ascendente en un sistema de acceso de radio, comprendiendo el aparato:8. Apparatus in a DTX discontinuous transmission mode for transmitting an uplink channel in a radio access system, the apparatus comprising: means for transmitting a first channel signal that includes control information through a first channel to a node B in a radio frame comprising a compressed mode transmission cut, in which the first channel signal is used to detect a second channel signal;and medios para transmitir una primera señal de canal que incluye información de control a través de un primer canal a un nodo B en una trama de radio que comprende un corte de transmisión de modo comprimido, en el que se usa la primera señal de canal para detectar una segunda señal de canal;y means for transmitting a second channel signal through a second channel to node B in a predetermined time after the user equipment initiates a transmission of the first channel signal in the radio frame, characterized in that medios para transmitir una segunda señal de canal a través de un segundo canal al nodo B en un tiempo predeterminado después de que el equipo de usuario inicie una transmisión de la primera señal de canal en la trama de radio, caracterizado porque part of a preamble of the first channel signal is not transmitted only when the part of the preamble of the first channel overlaps in the compressed mode transmission cut and remaining parts of the first channel signal are transmitted, and the apparatus is a device of EU user. parte de un preámbulo de la primera señal de canal no se transmite sólo cuando la parte del preámbulo del primer canal se solapa en el corte de transmisión de modo comprimido y se transmiten partes restantes de la primera señal de canal, y el aparato es un equipo de usuario UE.
- 9Apparatus for receiving an uplink channel signal in a radio access system, the apparatus comprising:9. Aparato para recibir una señal de canal de enlace ascendente en un sistema de acceso de radio, comprendiendo el aparato: means for receiving, from a user equipment UE in a DTX discontinuous transmission mode, a first channel signal that includes control information through a first channel in a radio frame comprising a compressed mode transmission cut, in which the first channel signal is used to detect a second channel signal;and medios para recibir, desde un equipo de usuario UE en un modo de transmisión discontinua DTX, una primera señal de canal que incluye información de control a través de un primer canal en una trama de radio que comprende un corte de transmisión de modo comprimido, en el que se usa la primera señal de canal para detectar una segunda señal de canal;y means for receiving, from the UE user equipment, a second channel signal through a second channel at a predetermined time after the UE initiates a transmission of the first channel signal in the radio frame, characterized in that medios para recibir, desde el equipo de usuario UE, una segunda señal de canal a través de un segundo canal en un tiempo predeterminado después de que el UE inicie una transmisión de la primera señal de canal en la trama de radio, caracterizado porque part of a preamble of the first channel signal is not transmitted only when the part of the preamble of the first channel overlaps in the compressed mode transmission cut and remaining parts of the first channel signal are transmitted and the apparatus is a node B . parte de un preámbulo de la primera señal de canal no se transmite sólo cuando la parte del preámbulo del primer canal se solapa en el corte de transmisión de modo comprimido y se transmiten partes restantes de la primera señal de canal y el aparato es un nodo B.
- 10Aparato según las reivindicaciones 8 ó 9, caracterizado porque el primer canal es un canal de control físico dedicado DPCCH, y el segundo canal es un canal dedicado extendido E-DCH que comprende al menos uno de un canal de datos físico dedicado extendido E-DPDCH y un canal de control físico dedicado extendido E-DPCCH. 10. Apparatus according to claims 8 or 9, characterized in that the first channel is a dedicated physical control channel DPCCH, and the second channel is an extended dedicated E-DCH channel comprising at least one of an extended dedicated physical data channel E-DPDCH and an extended dedicated physical control channel E-DPCCH.
Independent claims6
82 paragraphs, as filed
Method for transmitting a control channel in a mobile communication system
Technical sector
The present invention relates to a mobile communication system, and more particularly to methods and apparatus for transmitting a control channel in a mobile communication system.
State of the art
In an uplink transmission, that is, in a case where a user equipment functions as a transmitter, various methods for controlling the power have been suggested so that the capacity of a battery is increased or the power consumption is decreased of the user equipment to increase the duration of the user equipment. Examples of methods for controlling power may include a discontinuous transmission scheme.
The discontinuous transmission scheme may be, for example, a method of instantly reducing a data transmission output or establishing a silent state when a voice signal is not transmitted on a mobile phone or a portable cordless telephone. When two people talk on the phone, a talk time of each of the two people is equal to or less than a half of a total talk time. Therefore, if a connection to a transmitter is established only during a voice input time, a transmission time can be reduced to 50% or less. Accordingly, advantages can be obtained including conservation of battery power, reduction of a load of a transmitter amplifier, and channel sharing with another signal in view of time division multiplexing (TDM).
The TR 25.903 specification of 3GPP V1.2.0 (2006-11) and the 3GPP Draft R1-070352 refer to continuous packet connectivity.
Object of the invention
Accordingly, the present invention relates to methods
According to embodiments of the present invention, it is possible to increase the efficiency of a mobile communication system. In addition, even if a transmission error occurs and a part of a transmission unit cannot be transmitted, the remaining signal is transmitted. Therefore, it is possible to avoid wasting transmission resources and perform more efficient resource planning. The error produced is corrected and detected by an error detection and correction method applied to the channel to increase a probability of transmission / reception success, thereby increasing efficiency.
Description of the figures
The accompanying drawings, which are included to provide a further understanding of the invention, illustrate embodiments and examples of the invention and together with the description serve to explain the principle of the invention.
In the drawings:
Figure 1 is a drawing to illustrate a compressed mode transmission scheme;
Figure 2 is a drawing to illustrate a discontinuous transmission operation of an enhanced dedicated channel (E-DCH);
Fig. 3 is a drawing to illustrate the operation of a user equipment according to an embodiment of the present invention when the compressed mode transmission scheme and the discontinuous transmission scheme are simultaneously applied in an E-DCH transmission;
Fig. 4 is a drawing to illustrate the operation of a user equipment according to another embodiment of the present invention when the compressed mode transmission scheme and the discontinuous transmission scheme are simultaneously applied in an E-DCH transmission;
Figure 5 is a drawing to illustrate the operation of a user equipment according to an example of the present invention when the compressed mode transmission scheme and the discontinuous transmission scheme are simultaneously applied in an E-DCH transmission;
Figure 6 is a drawing to illustrate a discontinuous transmission operation of a dedicated high-speed physical control channel (HS-DPCCH);
Fig. 7 is a drawing to illustrate the operation of a user equipment according to an embodiment of the present invention when the compressed mode transmission scheme and the discontinuous transmission scheme are simultaneously applied in an HS-DPCCH transmission; and
Figure 8 is a drawing to illustrate the operation of a user equipment according to an example of the present invention when the compressed mode transmission scheme and the discontinuous transmission scheme are applied simultaneously in an HS-DPCCH transmission.
Detailed description of the invention
Hereinafter, preferred embodiments and examples of the present invention will be described in detail with reference to the accompanying drawings. The present invention will be more fully understood from the detailed description provided hereinbelow and the accompanying drawings that are given by way of illustration only, and therefore do not limit the present invention. The following detailed description includes details in order to provide a complete understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be accomplished without the details. For example, in the following description, specific terms are used, but the present invention is not limited to these terms.
In some cases, known devices and structures are omitted in order to avoid an ambiguity of the concept of the present invention or main functions of the structures and devices are shown in a block diagram and / or a flow chart. The same reference numbers will be used in all drawings to refer to equal or similar parts.
Figure 1 is a drawing to illustrate a compressed mode transmission scheme.
Figure 1 shows a schematic frame structure according to the compressed mode transmission scheme. According to the compressed mode transmission scheme, any one or two continuous frames are used as a compressed frame that includes a compressed mode (CM) cut in one frame or between two continuous frames. In other words, some slots of a frame that is determined to be used as a compressed frame, that is, slots included in the CM cut, are not used in data transmission. These slots are used to perform an operation to interrupt the transmission / reception of data in the CM cut and search for a neighboring cell and a neighboring network.
In order to reduce the influence of a reduced processing gain due to the existence of the CM cut and maintain communication quality, the data can be transmitted in a state of increasing transmission power with respect to some slots of the compressed frame. As shown in Figure 1, the slots for transmitting data with the increased transmission power are preferably located before the CM cut begins and after the CM cut ends. The amount of increased power in some slots of the compressed frame can be determined by reducing a transmission time. Examples of a factor for measuring communication quality may include a bit error rate (BER) and a frame error rate (FER).
In a network, it can be determined which frame is used as a compressed frame. The compressed frame can be generated periodically in the compressed mode and can be generated by a request if necessary. The transmission rate and the type of compressed frame can be determined by requirements due to various measurements and channel environments.
Next, an uplink discontinuous transmission (DTX) transmission scheme will be described as another method of controlling power. In a communication system, in order to reduce the power consumption of a battery of a user equipment and increase an uplink channel capacity, a discontinuous transmission operation is designed in an uplink transmission. That is, the user equipment transmits data discontinuously. Considering the user equipment, a method is used to control the power differently according to an interval in which the data is transmitted and an interval in which the data is not transmitted, that is, the DTX interval.
For example, if the DTX interval is used, the data is not always transmitted. Therefore, when the data is transmitted, the user equipment is in a use state or an "ON" state and, when the data is not transmitted, the user equipment is in a state to minimize power consumption, such as a “SUSPENDED” state or a “OFF” state.
If the uplink discontinuous transmission scheme and the compressed mode transmission scheme are operated simultaneously, a precise operation of the user equipment is preferably examined. Hereinafter, the operation of the user equipment according to embodiments of the present invention will be described in detail when the uplink compressed mode transmission scheme and the uplink discontinuous transmission scheme are applied simultaneously.
First, the operation of the user equipment associated with the discontinuous transmission of an enhanced dedicated channel (E-DCH) will be described.
Figure 2 is a drawing to illustrate a discontinuous transmission operation of the E-DCH.
Referring to Figure 2, the E-DCH is a channel for transmitting data by uplink packets and is mapped with a physical channel such as an enhanced dedicated physical data channel (E-DPDCH) and a dedicated physical control channel enhanced (E-DPCCH). The E-DPDCH is the physical channel used to transmit E-DCH data and the E-DPCCH is the physical channel used to transmit control information associated with the E-DCH. In general, the E-DPDCH and the E-DPCCH are transmitted simultaneously.
When the E-DCH is transmitted through the E-DPDCH and the E-DPCCH, in order to allow a receiving side, for example, a B node, to easily perform an E-DCH demodulation using E- detection DCH or channel estimation, a dedicated physical control channel (DPCCH) is also transmitted. More particularly, the control information generated in a first layer is transmitted through the DPCCH. For example, at least one of feedback information (FBI), a transmission power control order (TPC) and a transport format combination indicator (TFCI) including an uplink pilot can be transmitted to support the estimation of channel.
Meanwhile, control information that is not transmitted through the DPCCH, that is, the control information that is characteristic in the E-DCH, can be transmitted through the E-DPCCH as control information used in the demodulation of E -DCH. For example, TFCI information, HARQ and planning request information can be transmitted through the E-DPCCH. At this time, the E-DPDCH, E-DPCCH and DPCCH can be transmitted simultaneously and multiplexed using different codes or different orthogonal phase components.
As shown in Figure 2, the user equipment starts the DPCCH transmission before transmitting the E-DPDCH and the E-DPCCH. In other words, the transmission of E-DPDCH and E-DPCCH starts at a predetermined time after the DPCCH transmission starts or after a predetermined number of slots is transmitted. The DPCCH signal that is transmitted before the E-DPDCH and the E-DPCCH are transmitted is called a DPCCH preamble. Figure 3 shows a case in which two slots are used as a preamble to DPCCH. Hereinafter, the number of slots used as a preamble of DPCCH is indicated by N.
The user equipment transmits the DPCCH at a predetermined time after the transmission of E-DPDCH and E-DPCCH is terminated or after a predetermined number of slots is transmitted, and then the E-DCH transmission process ends. The DPCCH signal that is transmitted after the transmission of E-DPDCH and E-DPCCH is terminated is called a DPCCH Preamble. Figure 2 shows a case in which a slot is used as a DPCCH postamble. Hereinafter, the number of slots used as a DPCCH postamble is indicated by M.
As described above, the DPCCH preamble and DPCCH preamble are transmitted respectively before and after the E-DPDCH and E-DPCCH are transmitted so that the receiving side, for example, node B detects the E-DCH with greater probability of success.
In the DPCCH preamble, the number of slots used as a DPCCH preamble can be determined according to the data transmission status of the user equipment. For example, if the user does not transmit the data for a longer time than a predetermined time interval before transmitting the E-DCH, more slots may be used as a preamble to DPCCH, compared to a case in which the user does not transmit the data during the predetermined time interval or less.
If the user does not transmit the data during the predetermined time interval or less, the number N1 of slots used as a preamble of DPCCH may be 2. In contrast, if the user does not transmit the data for the time longer than the time interval By default, the number N2 of slots used as a preamble to DPCCH can be 15. This is because, if the data is not transmitted for a longer time, it is preferable that the control information necessary for synchronization is transmitted and that more control information required to perform power control is transmitted.
As shown in Figure 2, in the DPCCH transmission, as described above, the DPCCH preamble is transmitted by a predetermined number N of slots, for example, two slots, before transmitting the E-DPDCH and the E-DPCCH, and the DPCCH post-module is transmitted by a predetermined number M of slots, for example, one slot, after transmitting the E-DPDCH and the E-DPCCH. A process for transmitting the DPCCH preamble, transmitting the E-DPDCH and E-DPCCH, and transmitting the DPCCH preamble is considered a transmission unit. A transmission unit shown on the left side of Figure 2 is called the first transmission unit and a transmission unit shown on the right of Figure 2 is called the second transmission unit.
In this case, a predetermined DTX interval can be established between the first transmission unit and the second transmission unit. Data is not transmitted in the DTX interval. If the DTX interval is terminated, the DPCCH preamble is transmitted again, the E-DCH is transmitted, that is, the E-DPDCH and the E-DPCCH, and the DPCCH preamble is transmitted, thereby terminating the transmission of data from a transmission unit.
Now, a method for transmitting the E-DCH by the user equipment will be described when the discontinuous transmission scheme and the compressed mode transmission scheme of the E-DCH are simultaneously applied.
Fig. 3 is a drawing to illustrate the operation of the user equipment according to an embodiment of the present invention when the compressed mode transmission scheme and the discontinuous transmission scheme are applied simultaneously in an E-DCH transmission.
As described above, for the transmission of E-DCH, the E-DPDCH and the E-DPCCH are transmitted and the DPCCH is transmitted together with the E-DPDCH and the E-DPCCH. The DTX interval according to the discontinuous transmission scheme exists between the first transmission unit that is transmitted first and the second transmission unit that is transmitted next.
That is, the transmission of the data corresponding to the first transmission unit is terminated and, after the DTX interval, the transmission of the data corresponding to the second transmission unit is initiated by transmitting the preamble of DPCCH.
At this time, as shown in Figure 3, if it is determined that a part of the DPCCH preamble of the second transmission unit must be transmitted in the CM cut according to the compressed mode transmission scheme, the DPCCH preamble is not transmits in one or all slots that overlap the CM cut, but the E-DPDCH and E-DPCCH are transmitted as well as the remaining DPCCH preamble, DPCCH signal and DPCCH preamble, according to the embodiment of the present invention. If it is determined that the DPCCH postamble must be transmitted in the CM cut according to the compressed mode transmission scheme, the DPCCH postamble is not transmitted in a part or all of the slots that overlap the CM cut, but that the E- is transmitted. DPDCH and the E-DPCCH as well as the DPCCH preamble, the DPCCH signal and the remaining DPCCH preamble.
This is because an error check sum (ECS) can be used to check the error in the E-DCH data, a HARQ operation is performed, and the deterioration in the reception capacity due to the lack of the DPCCH preamble and from the DPCCH preamble on the receiving side can be easily recovered even if it is determined that at least one of the DPCCH preamble and the DPCCH preamble must be transmitted in the CM cut and cannot be transmitted.
Figure 4 is a drawing to illustrate the operation of the user equipment according to another embodiment of the present invention when the compressed mode transmission scheme and the discontinuous transmission scheme are simultaneously applied in an E-DCH transmission.
If the user equipment does not transmit the data for longer than the predetermined time interval, as shown in Figure 4, the number N2 of slots used as a preamble of DPCCH can be set to 15. This is because, as described, if the data is not transmitted for the longest time, it is preferable that the control information necessary for uplink synchronization is transmitted and that more control information required to perform the transmission is transmitted. power control
In the present embodiment, similar to the embodiment of Figure 3, if it is determined that a part of the long-length DPCCH preamble should be transmitted in the CM cut according to the compressed mode transmission scheme, the long-length DPCCH preamble does not it is transmitted in a part or all the slots that overlap the CM cut, but the E-DPDCH and the E-DPCCH are transmitted as well as the remaining DPCCH preamble, the DPCCH signal and the DPCCH preamble, according to the embodiment of the present invention.
Similarly, if it is determined that the DPCCH postamble must be transmitted in the CM cut according to the compressed mode transmission scheme, the DPCCH postamble is not transmitted in a part or all of the slots that overlap the CM cut, but that they transmit the E-DPDCH and the E-DPCCH as well as the DPCCH preamble, the DPCCH signal and the remaining DPCCH preamble.
Figure 5 is a drawing to illustrate the operation of the user equipment according to an example of the present invention when the compressed mode transmission scheme and the discontinuous transmission scheme are simultaneously applied in an E-DCH transmission.
In the present example, unlike the embodiments shown in Figures 3 and 4, if it is determined that a part of the long-length DPCCH preamble should be transmitted in the CM cut according to the compressed mode transmission scheme, the DPCCH and the Remaining channel signals from the global transmission unit associated with the long-length DPCCH preamble as well as the slots that overlap the CM cut are not transmitted according to the example of the present invention. That is, none of the remaining DPCCH preamble, the DPCCH signal, the DPCCH postamble, the E-DPDCH and the E-DPCCH are transmitted.
Similarly, if it is determined that the DPCCH preamble must be transmitted in the CM cut according to the compressed mode transmission scheme, the DPCCH and the remaining channel signals of the global transmission unit associated with the DPCCH preamble as well as the slots that overlap the CM cut are not transmitted according to the example of the present invention. That is, none of the DPCCH preamble, the DPCCH signal, the remaining DPCCH preamble, the E-DPDCH and the E-DPCCH are transmitted.
The control information for uplink synchronization and the control information required to control the power are transmitted through the long-length DPCCH preamble transmitted after the data is not transmitted during the predetermined time interval. Therefore, if the long-length DPCCH preamble is not normally received, it is difficult to establish uplink synchronization. In this case, a fatal error may occur in the transmission / reception of data.
Next, the operation of the user equipment associated with the discontinuous transmission of a dedicated high-speed physical control channel (HS-DPCCH) will be described.
Figure 6 is a drawing to illustrate a discontinuous transmission operation of the HS-DPCCH.
The HS-DPCCH sends an uplink feedback signal associated with the transmission of a high speed downlink shared channel (HS-DSCH). The feedback signal associated with the HS-DSCH includes a HARQ acknowledgment (ACK / NACK) and a channel quality indication.
When the HS-DPCCH, similar to the E-DCH, is transmitted in order to allow the receiving side, for example, node B, to easily perform an E-DCH demodulation using E-DCH detection or channel estimation , the DPCCH is also transmitted. That is, the control information to control the power and the necessary control information that a pilot includes to perform the channel estimation can be transmitted through the DPCCH. At this time, the HS-DPCCH and DPCCH can be transmitted simultaneously and multiplexed using different codes or different orthogonal phase components.
As shown in Figure 6, the user equipment starts transmitting the DPCCH before transmitting the HS-DPCCH. That is, the HS-DPCCH transmission starts at a predetermined time after the DPCCH transmission starts or a predetermined number of slots is transmitted. The DPCCH signal that is transmitted before the HS-DPCCH is transmitted is called a DPCCH preamble. Figure 6 shows a case in which two slots are used as a preamble to DPCCH. Hereinafter, the number of slots used as a preamble of DPCCH is indicated by N.
The user equipment transmits the DPCCH at a predetermined time after the HS-DPCCH transmission is terminated or after a predetermined number of slots is transmitted, and then the HS-DPCCH transmission process ends. The DPCCH signal that is transmitted after the HS-DPCCH transmission is terminated is called a DPCCH Preamble. Figure 6 shows a case in which a slot is used as a DPCCH postamble. Hereinafter, the number of slots used as a DPCCH postamble is indicated by M.
As described above, the DPCCH preamble and the DPCCH preamble are transmitted respectively before and after the HS-DPCCH is transmitted so that the receiving side, for example, node B detects the HS-DPCCH with greater probability of success
As shown in Figure 6, in the DPCCH transmission, as described above, the DPCCH preamble is transmitted by the predetermined number N of slots, for example, two slots, before the transmission of HS-DPCCH and The DPCCH post-module is transmitted by the predetermined number M of slots, for example, one slot, after transmission of HS-DPCCH.
A process for transmitting the DPCCH preamble, transmitting the HS-DPCCH, and transmitting the DPCCH is considered as a transmission unit. A transmission unit shown on the left side of Figure 6 is called the first transmission unit and a transmission unit shown on the right of Figure 6 is called the second transmission unit.
In this case, a predetermined DTX interval can be established between the first transmission unit and the second transmission unit and the data is not transmitted in the DTX interval. If the DTX interval is terminated, the DPCCH preamble is transmitted again, the DPCCH and HS-DPCCH are transmitted, and the DPCCH preamble is transmitted, thereby terminating the data transmission of a transmission unit.
At this time, compared to the E-DCH discontinuous transmission scheme, while the E-DPDCH and E-DPCCH are transmitted from a slot immediately following the two slots, in which the DPCCH preamble is transmitted, In the E-DCH discontinuous transmission scheme, the HS-DPCCH is transmitted from a middle part of a slot immediately following the slot, in which the DPCCH preamble is transmitted, in the HS-DPCCH discontinuous transmission scheme as shown in the figure
6.
Even in the transmission of the DPCCH post-module, while the E-DPDCH and the E-DPCCH are transmitted to a slot immediately before a slot, in which the DPCCH post-module is transmitted, in the E-DCH discontinuous transmission scheme , the HS-DPCCH is transmitted to a middle part of a slot immediately before a slot, in which the DPCCH post-module is transmitted, in the HS-DPCCH discontinuous transmission scheme as shown in Figure 6.
Now, a method for transmitting the HS-DPCCH by the user equipment will be described when the discontinuous transmission scheme and the compressed mode transmission scheme of the HS-DPCCH are simultaneously applied.
Figure 7 is a drawing to illustrate the operation of the user equipment according to an embodiment of the present invention when the compressed mode transmission scheme and the discontinuous transmission scheme are applied simultaneously in an HS-DPCCH transmission.
As described above, for the HS-DPCCH transmission, the HS-DPCCH is transmitted and the DPCCH is transmitted together with the HS-DPCCH. The DTX interval according to the discontinuous transmission scheme exists between the first transmission unit that is transmitted first and the second transmission unit that is transmitted next.
That is, the transmission of the data corresponding to the first transmission unit is terminated and, after the DTX interval, the transmission of the data corresponding to the second transmission unit is initiated by transmitting the preamble of DPCCH.
At this time, if it is determined that a part of the DPCCH preamble of the second transmission unit must be transmitted in the CM cut according to the compressed mode transmission scheme, the DPCCH preamble is not transmitted in a part or all slots that overlap the CM cut, but the HS-DPCCH as well as the remaining DPCCH preamble, the DPCCH signal and the DPCCH postamble are transmitted, according to the embodiment of the present invention.
If it is determined that the DPCCH postamble must be transmitted in the CM cut according to the compressed mode transmission scheme, the DPCCH postamble is not transmitted in a part or all of the slots that overlap the CM cut, but that the HS- is transmitted. DPCCH as well as the DPCCH preamble, the DPCCH signal and the remaining DPCCH preamble.
Figure 8 is a drawing to illustrate the operation of the user equipment according to an example of the present invention when the compressed mode transmission scheme and the discontinuous transmission scheme are applied simultaneously in an HS-DPCCH transmission.
In the present example, unlike the embodiment shown in Figure 7, if it is determined that a part of the preamble of DPCCH must be transmitted in the CM cut according to the compressed mode transmission scheme, the DPCCH and the signals of transmission are not transmitted. remaining channels of the global transmission unit associated with the DPCCH preamble as well as the slots that overlap the CM cut according to the example of the present invention.
Similarly, if it is determined that the DPCCH postamble must be transmitted in the CM cut according to the compressed mode transmission scheme, the DPCCH and the remaining channel signals of the global transmission unit associated with the DPCCH preamble are not transmitted. as well as the grooves that overlap the CM cut according to the example of the present invention. That is, none of the DPCCH preamble, the DPPCCH signal, the remaining DPCCH preamble and the HS-DPCCH are transmitted.
This is because the ECS cannot be applied to verify the error to the HS-DPCCH data and the HARQ operation cannot be performed. Therefore, if at least one of the preamble of DPCCH and the preamble of DPCCH is transmitted in the CM cut and therefore cannot be transmitted, a probability of deterioration in the reception capacity due to the lack of the preamble of DPCCH and the preamble of DPCCH on the receiving side is high.
Although examples are described that apply when the E-DPDCH / E-DPCCH and the HS-DPCCH are transmitted together with the DPCCH in the embodiments described above, it will be apparent to those skilled in the art that a method equal to or similar to transmission method described herein with respect to various other channel signals.
The present invention is not limited to the embodiments described herein and includes the broadest scope that includes the principles and features disclosed herein.
8 sheets
Sheet 1 Sheet 2 Sheet 3 Sheet 4 Sheet 5 Sheet 6 Sheet 7 Sheet 8
31 members in 12 offices
Priority claims5
| Document | Office | Kind | Date |
|---|---|---|---|
| 888060P | United States of America | – | |
| 88806007 | United States of America | P | |
| 20070080312 | Republic of Korea | A | |
| 20070080312 | Republic of Korea | – | |
| 2008000673 | Republic of Korea | W |
Members31
| Document | Office | Kind | |
|---|---|---|---|
| KR20080072498A | Republic of Korea | A | |
| WO2008094023A2 | World Intellectual Property Organization (WIPO) | A2 | |
| GB0910564D0 | United Kingdom | D0 | |
| EP2084933A2 | European Patent Office (EPO) | A2 | |
| MX2009008299A | Mexico | A | |
| WO2008094023A3 | World Intellectual Property Organization (WIPO) | A3 | |
| KR100934664B1 | Republic of Korea | B1 | |
| CN101627655A | China | A | |
| US2010061303A1 | United States of America | A1 | |
| GB2463749A | United Kingdom | A | |
| US2010103881A1 | United States of America | A1 | |
| JP2010518678A | Japan | A | |
| EP2084933A4 | European Patent Office (EPO) | A4 | |
| US7894398B2 | United States of America | B2 | |
| RU2009121455A | Russian Federation | A | |
| US8040846B2 | United States of America | B2 | |
| EP2084933B1 | European Patent Office (EPO) | B1 | |
| RU2432687C2 | Russian Federation | C2 | |
| AT530044T | Austria | T | |
| ATE530044T1 | Austria | T1 | |
| GB2463749B | United Kingdom | B | |
| ES2375853T3This record | Spain | T3 | |
| JP4906008B2 | Japan | B2 | |
| JP2012100327A | Japan | A | |
| USRE44317E | United States of America | E | |
| CN103188812A | China | A | |
| JP5319793B2 | Japan | B2 | |
| CN101627655B | China | B | |
| BRPI0807061A2 | Brazil | A2 | |
| CN103188812B | China | B | |
| BRPI0807061B1 | Brazil | B1 |
Numbers
- Publication
- 2375853
- Application
- 8712324
Titles2
- Spanish
- METODO PARA TRANSMITIR UN CANAL DE CONTROL EN UN SISTEMA DE COMUNICACION MOVIL.
- English
- METHOD FOR TRANSMITTING A CONTROL CHANNEL IN A MOBILE COMMUNICATION SYSTEM.
Classification
- CPC, 4
- H04W72/535
- H04W72/12
- H04W76/20
- H04B7/2603
- IPC, 2
- H04W72 12
- H04W76 04