Control resource mapping for a wireless communication system
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15 claims: 15 independent, 0 dependent
- 1パイロットおよび他の制御チャネルのために使用される 伝送ユニットを除いて、前記制御チャネルが送信される制御セグメントに関する全ての伝送ユニットの中から、前記制御チャネルのために利用可能な伝送ユニットを決定し、前記制御チャネルのために利用可能な伝送ユニットの中から、一のパケットのための伝送ユニットの一組を決定し、前記伝送ユニットの一組を介して、前記パケットを送信または受信するように構成された少なくとも1つのプロセッサと、 ここで、前記伝送ユニットの一組における各伝送ユニットは、特定のホップポートに対応する、 前記少なくとも1つのプロセッサに連結されたメモリーと を備える無線通信のための装置。
- 2前記パケットのための伝送ユニットの一組は、前記制御チャネルのために利用可能な伝送ユニットにわたって分散される、請求項 1 記載の装置。
- 3前記少なくとも1つのプロセッサは、さらに、 他の送 信の ために使用される伝送ユニット を除くように構成される 、請求項 1 記載の装置。
- 4前記制御セグメントは、少なくとも1個のタイルを備え、ここで、各タイルは、複数の伝送ユニットを備える、請求項 1 記載の装置。
- 5前記少なくとも1個のタイルは、利用不可能な伝送ユニットの同じパターンを有する、請求項 4 記載の装置。
- 6前記少なくとも1つのプロセッサは、各タイル中の前記複数の伝送ユニットを通って横断し、前記制御チャネルに関する複数のパケットの中の1つのパケットに対して各伝送ユニットを割り当てるように構成され、ここで、前記1つのパケットは前記複数のパケットを巡回することにより決定されている、請求項 5 記載の装置。
- 7前記少なくとも1つのプロセッサは、前記パケットがマッピングされる各タイルの中の伝送ユニットを決定し、前記制御チャネルのために利用不可能な伝送ユニットを除いて、前記パケットがマッピングされる少なくとも1個のタイルの中の前記伝送ユニットの中から、前記パケットのための伝送ユニットの一組を決定するように構成される、請求項 4 記載の装置。
- 8前記制御セグメントは複数のタイルを備え、各タイルは複数の伝送ユニットを含み、さらにここにおいて、前記パケットのための伝送ユニットの一組は前記複数のタイルの部分集合の中にある、請求項 1 記載の装置。
- 9前記制御セグメントは、少なくとも1つのセグメントの各々につき3個のタイルを含み、各タイルは、複数の伝送ユニットを含み、さらにここにおいて、前記パケットのための伝送ユニットの一組は、1つのセグメントのための3個のタイルの中にある、請求項 1 記載の装置。
- 10パイロットおよび他の制御チャネルのために使用される 伝送ユニットを除いて、前記制御チャネルが送信される制御セグメントに関する全ての伝送ユニットの中から、前記制御チャネルのために利用可能な伝送ユニットを決定することと、 前記制御チャネルのために利用可能な伝送ユニットの中から、一のパケットのための伝送ユニットの一組を決定することと、 前記伝送ユニットの一組を介して前記パケットを送信または受信することと 、ここで、前記伝送ユニットの一組における各伝送ユニットは、特定のホップポートに対応する、 を備える無線通信のための方法。
- 11前記制御セグメントは少なくとも1個のタイルを含み、各タイルは複数の伝送ユニットを含み、さらにここにおいて、 各タイル中の前記複数の伝送ユニットを通って横断することと、 前記制御チャネルに関する複数のパケットの中の1つのパケットに対して各伝送ユニットを割り当てることと、ここで、前記1つのパケットは前記複数のパケットを巡回することにより決定される、 を備える請求項 10 記載の方法。
- 12前記制御セグメントは少なくとも1個のタイルを含み、各タイルは複数の伝送ユニットを含み、さらにここにおいて、 前記パケットがマッピングされる各タイルの中の伝送ユニットを決定することと、 前記制御チャネルのために利用不可能な伝送ユニットを除いて、前記パケットがマッピングされる前記少なくとも1個のタイルの中の複数の伝送ユニットの中から前記パケットのための伝送ユニットの一組を決定することと を備える請求項 10 記載の方法。
- 13パイロットおよび他の制御チャネルのために使用される 伝送ユニットを除いて、前記制御チャネルが送信される制御セグメントに関する全ての伝送ユニットの中から、前記制御チャネルのために利用可能な伝送ユニットを決定するための手段と、 前記制御チャネルのために利用可能な伝送ユニットの中から、一のパケットのための伝送ユニットの一組を決定するための手段と、 前記伝送ユニットの一組を介して前記パケットを送信または受信するための手段と 、ここで、前記伝送ユニットの一組における各伝送ユニットは、特定のホップポートに対応する、 を備える無線通信のための装置。
- 14前記制御セグメントは少なくとも1個のタイルを含み、各タイルは複数の伝送ユニットを含み、さらにここにおいて、 各タイル中の前記複数の伝送ユニットを通って横断するための手段と、 前記制御チャネルに関する複数のパケットの中の1つのパケットに対して各伝送ユニットを割り当てるための手段と、ここで、前記1つのパケットは前記複数のパケットを巡回することにより決定される、 を備える請求項 13 記載の装置。
- 15前記制御セグメントは少なくとも1個のタイルを含み、各タイルは複数の伝送ユニットを含み、さらにここにおいて、 前記パケットがマッピングされる各タイルの中の伝送ユニットを決定するための手段と、 前記制御チャネルのために利用不可能な伝送ユニットを除いて、前記パケットがマッピングされる前記少なくとも1個のタイルの中の伝送ユニットの中から、前記パケットのための伝送ユニットの一組を決定するための手段と を備える請求項 13 記載の装置。
Independent claims15
96 paragraphs, as filed
This application is entitled "Methods and Devices for Using Indications of Interference (OSI) in Other Sectors", both transferred to the assignee of the present application and incorporated herein by reference, January 2007. Priority to US Provisional Patent Application No. 60 / 883,387 filed on April 4, and US Provisional Patent Application No. 60 / 883,758 filed on January 5, 2007, entitled "Wireless Communication System". Request. The present disclosure relates to communications, and more specifically to techniques for transmitting control information in wireless communication systems.
Wireless communication systems are widely deployed to provide various communication services such as voice, video, packet data, messaging, broadcasting and so on. These wireless systems may be multiple access systems that can assist multiple users by sharing available available system resources. Examples of such multiple access systems are code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal FDMA (OFDMA) systems and single carrier FDMA ( Includes SC-FDMA) system.
The wireless communication system may include many base stations that can assist in communication for many terminals on forward and reverse links. A forward link (or downlink) refers to a communication link from a base station to a terminal. A reverse link (or uplink) refers to a communication link from a terminal to a base station. The system may utilize various control channels to assist in the transmission of data over forward and reverse links. For example, the base station may transmit control information in order to allocate resources to the terminal, acknowledge the packet received from the terminal, and notify the terminal of the operating conditions in the base station. The control information sent by the base station, though useful, represents overhead within the system.
Therefore, there is a need for a technique for efficiently transmitting control information in a wireless communication system in the technical field.
Techniques for utilizing control resources to send control information in a wireless communication system are described herein. The control segment may be used to send different control channels and may contain L tiles, where L 1. Each tile may contain multiple transmission units, and each transmission unit may correspond to one subcarrier during one symbol period (eg, it may be mapped). Multiple control resources may be defined for control segments, assigned to control channels, or used to send control information.
In one aspect, scalability for control segments, diversity for each control resource, symmetric mapping of multiple control resources across L tiles, localized mapping for a collection of control resources, distribution for consecutive control resources. Multiple control resources may be mapped to transmission units for control segments in such a way as to achieve the mapping, or any combination of these features. In one design of symmetric mapping, multiple sets of S control resources may be formed for multiple control resources, where S 1. Each batch of L contiguous sets of S control resources may be mapped to S transmission units at the same location in L tiles. In one design of local mapping, each set of S control resources may also be mapped to a cluster of S adjacent transmission units in a tile. In one design of distributed mapping, multiple contiguous control resources may also be mapped to multiple different tiles. In one mapping design that may be used for localized and distributed mappings, multiple sets of S control resources may be traversed, where also each of the S control resources. The set may be mapped to S transmission units in one tile determined by patrolling through L tiles. The first S control resources may be mapped to tile 0, the next S control resources may be mapped to tile 1, etc. The trade-off between "localization" and "diversity" may be obtained by choosing S appropriate values. In one design of diversity, each control resource is mapped to multiple (eg, 3) transmission units at different locations on at least one tile to gain diversity for the control resource. You may.
In one design, the tile index h and transmission unit index r for the control resource index R may be determined based on the mapping scheme. The control resource with index R may be mapped to the transmission unit with index r in the tile with index h. Control information may be transmitted or received by the control resource.
In another aspect, the transmission unit available for a given control channel may be determined from among all transmission units for the control segment, and the control channel (eg, pilot, other control channel, and / or other). Transmission units that are not available may be excluded from the transmission units used for transmission). Multiple packets may be sent over the control channels in the control segment. Each packet may be mapped to a different set of transmission units, which may be distributed across multiple transmission units available for the control channel. In one design, multiple transmission units in each tile may be traversed, and each transmission unit may be assigned to one packet by cycling through multiple packets. Each packet may be sent by its set of transmission units.
The various aspects and features of the present disclosure are described in more detail below.
<figref num="1">Figure 1 shows a wireless communication system.</figref><figref num="2">Figure 2 shows the superframe structure.</figref><figref num="3">Figure 3 shows the tile structure.</figref><figref num="4">Figure 4 shows the forward link (FL) control segment (FLCS).</figref><figref num="5">Figure 5 shows three tile segments for FLCS tiles.</figref><figref num="6">Figure 6 shows the mapping of FLCS resources to three transmission units.</figref><figref num="7">Figure 7 shows the local mapping of FLCS resources.</figref><figref num="8">Figure 8 shows FLCS tiles with available transmission units.</figref><figref num="9">Figure 9 shows another mapping of FLCS resources to the three transmission units.</figref><figref num="10">Figure 10 shows a distributed mapping of FLCS resources.</figref><figref num="11">FIG. 11 shows the mapping of one packet to the transmission unit.</figref><figref num="12">FIG. 12 shows a method of communicating control information.</figref><figref num="13">FIG. 13 shows a device for communicating control information.</figref><figref num="14">FIG. 14 shows a method of exchanging control packets.</figref><figref num="15">FIG. 15 shows a device for exchanging control packets.</figref><figref num="16">FIG. 16 shows a block diagram of a base station and a terminal.</figref>
The techniques described herein may be used in various radio communication systems such as CDMA, TDMA, FDMA, OFDMA and SC-FDMA systems. The terms "system" and "network" are often used interchangeably. CDMA systems may implement radio technologies such as cdma2000, Universal Terrestrial Radio Access (UTRA). OFDMA systems include Ultra Mobile Broadband (UMB), Evolved UTRA (e-UTRA), IEEE 802.16, IEEE Wireless technologies such as 802.20, flash OFDM, etc. may be implemented. UTRA and E-UTRA are described in a document from an organization named "3rd Generation Partnership Project" (3GPP). cdma2000 and UMB are described in a document from an organization named "3rd Generation Partnership Project 2" (3GPP2). These various wireless technologies and standards are known in the art. For clarity, certain aspects of the technique are described below with respect to UMB, and UMB terminology is used in most of the description below. UMB is described in the publicly available 3GPP2 C.S0084-001 entitled "Physical Layer Radio Interface Specifications for Ultra Mobile Broadband (UMB) (August 2007)".
FIG. 1 shows the wireless communication system 100, which may also be referred to as an access network (AN). System 100 may include a plurality of base stations 110. A base station is a station that communicates with a terminal and may be referred to as an access point, node B, evolved node B, and so on. Each base station supplies communication coverage to a particular geographic area 102. The term "cell" can refer to a base station and / or its coverage area, depending on the context in which it is used. To improve system capacity, the base station coverage area may be divided into multiple smaller areas (eg, three smaller areas 104a, 104b, 104c). Each of the smaller areas may be serviced by their respective base station subsystem. The term "sector" can refer to the smallest coverage area of a base station and / or the base station subsystem servicing this coverage area.
Terminals 120 may be distributed throughout the system, and each terminal may be a fixed station or a mobile station. Terminals may also be referred to as access terminals (ATs), mobile stations, user devices, subscriber units, stations, and the like. The terminal may be a mobile phone, a personal digital assistant (PDA), a wireless communication device, a wireless modem, a handheld device, a laptop computer, a cordless telephone, and the like. The terminal may communicate with zero, one or more base stations on forward and / or reverse links at any given time point.
For centralized architectures, the system controller 130 may be coupled to base stations 110 to provide coordination and control to these base stations. System controller 130 may be a single network entity or a collection of multiple network entities. For distributed architectures, multiple base stations may communicate with each other as needed.
FIG. 2 shows the design of a superframe structure 200 that may be used for forward links. The transmission time axis may be divided into a plurality of units of the super frame. Each superframe can span a specific time duration, which may be fixed or configurable. Each superframe may each contain a preamble followed by Q physical layer (PHY) frames (if Q may be any integer value). In one design, each superframe contains 25 PHY frames with indexes from 0 to 24. Superframe preambles may carry system information and acquisition pilots. Each PHY frame may carry traffic data, control information / signaling, pilots, etc.
The time frequency resources in each PHY frame may be divided into tiles. Tiles may also be referred to as time frequency blocks, resource blocks, and so on. The tile may cover a particular time and frequency dimension, which may be fixed or configurable. In one design, tiles contain physical resources (eg, blocks of subcarriers) in one or more symbol periods. In another design, tiles contain logical resources that may be mapped to physical resources based on any mapping. In one design, the bandwidth of the system may be divided into multiple (K) orthogonal subcarriers with orthogonal frequency division multiplexing (OFDM). K hop ports may be defined or mapped to K subcarriers based on known mappings. Tiles may be defined based on either subcarriers (they are physical resources) or hop ports (they are logical resources).
Figure 3 shows the design of tile 300. In this design, each PHY frame covers 8 OFDM symbol cycles, and tile 300 covers 16 hop ports in 8 OFDM symbol cycles, including 128 transmission units. There is. The 16 hop ports for the tile may be mapped to 16 contiguous subcarriers or to 16 subcarriers distributed over all or most of the system bandwidth. One transmission unit corresponds to one subcarrier in one OFDM symbol period and may be used to transmit one symbol, which may be real or complex. The transmission unit may also be referred to as a subcarrier symbol, resource element, and the like. Pilot symbols may be transmitted on some of the transmission units in the tile, and other symbols may be transmitted on the remaining transmission units in the tile. In the design shown in Figure 3, the tile contains 18 transmission units for the pilot symbol and 110 transmission units for the other symbols.
Seeing Figure 2 again, each PHY frame may contain T tiles with indexes 0 to T-1, where T may depend on the bandwidth of the system. The 16 hop ports in each tile may be mapped to contiguous subcarriers or to subcarriers distributed over the bandwidth of the system.
The system may utilize a set of control channels to transmit different types of control information over the forward link. Table 1 lists exemplary pairs of control channels and provides a short description of each control channel. These control channels are described in detail in 3GPP2 C.S0084-001 described above.<tables num="1"><img file="JP5425965B2_D0001.tif" /></tables>
In one design, the control channel may be transmitted within the FL control segment within each PHY frame. The FL control segment may contain a sufficient amount of resources (eg, a sufficient number of tiles) to carry control information about the entire control channel.
Figure 4 shows the design of the FL control segment 400. In this design, the FL control segment contains a common segment and zero or more (K) link allocation block (LAB) segments with indexes from 0 to K-1. In the description below, the phrases "element with index x" and "element x" are used interchangeably, where the element may refer to any quantity. The common segment may contain L FLCS tiles with indexes from 0 to L-1, where L 1, which may be a configurable value. FLCS tiles are the tiles used for FL control segments. As shown in FIG. 4, K LAB segments may contain 3.K FLCS tiles, where each LAB segment contains 3 consecutive FLCS tiles. FL control segments may also be defined in other ways. In one design, the common segment carries all control channels in Table 1 except in some cases F-SCCH. The F-SCCH may be transmitted in K LAB segments, if present, or in a common segment.
In one design, the common segment is N<sub>FLCS</sub>It may be split into FLCS resources, where N<sub>FLCS</sub>May depend on the number of FLCS tiles in the common segment and, in some cases, other factors. FLCS resources are logical resources that can simplify the allocation and use of common segments. FLCS resources may be mapped to transmission units in a common segment in various ways. The resource mapping may be such that the common segment can achieve one or more of the following: * Scalability-Mapping of FLCS resources to transmission units in L FLCS tiles should be easily scaled regardless of the number of FLCS tiles, * Diversity-Each FLCS resource may be mapped to multiple transmission units to achieve diversity on FLCS resources. * Symmetrical mapping-L contiguous sets of S FLCS resources may be mapped to the same location in L contiguous FLCS tiles before moving to another location in the FLCS tile, where And S 1 * Localized mapping-A set of FLCS resources may be mapped to adjacent transmission units within a FLCS tile to observe similar channel responses. * Distributed Mapping-Continuous FLCS resources may be mapped to multiple different FLCS tiles to observe randomized channel responses, and * Forbidden Zone- FLCS resources may be mapped to available transmission units to avoid unavailable transmission units within the forbidden zone. The above features may be achieved as described below.
In one design, third-order diversity may be obtained by mapping each FLCS resource to three transmission units in up to three different FLCS tiles. Other diversity orders (eg 2, 4, etc.) may also be obtained by mapping each FLCS resource to a different number of transmission units. For clarity, many of the descriptions below assume FLCS resource mapping for third-order diversity.
In the first FLCS resource mapping scheme, FLCS resources are mapped to transmission units in a common segment in a way that achieves scalability, third-order diversity, and localized mapping. The first FLCS resource mapping method may also be referred to as the block resource channel (BRCH) mapping method.
For the first FLCS resource mapping scheme, each FLCS tile may be as shown in FIG. 3 and may contain 110 transmission units that may be used to transmit control information. .. If the common segment contains L FLCS tiles as shown in Figure 4, the total number of FLCS resources for the common segment might be given as:<maths num="1"><img file="JP5425965B2_D0002.tif" /></maths>
here,<maths num="2"><img file="JP5425965B2_D0003.tif" /></maths>
Displays the floor operator. N<sub>FLCS</sub>FLCS resources are 0 ~ N<sub>FLCS</sub>It may be assigned an index of -1.
Figure 5 shows the design of FLCS tiles that may be used to support tertiary diversity for the first FLCS resource mapping scheme. In this design, FLCS tiles are split into three tile segments 0, 1 and 2. Each tile segment contains 36 transmission units to which FLCS resources may be mapped. The 36 transmission units in each tile segment may be assigned indexes 0-35 based on a predefined mapping. In the design shown in Figure 5, transmission unit 0 in time segment 0 occupies hop port 2 in OFDM symbol period 0, and transmission unit 0 in time segment 1 occupies hops in OFDM symbol period 6. Port 4 is occupied and transmission unit 0 in time segment 2 occupies hop port 6 in OFDM symbol period 0. The other 35 transmission units in each time segment are shown in Figure 5.
To achieve third-order diversity for the first FLCS resource mapping scheme, Figure 6 shows the mapping of FLCS resources to three transmission units. In this design, FLCS resources with index R map to three transmission units with index r in all three tile segments 0, 1 and 2 of up to three consecutive FLCS tiles. Is done. The mapping unit 610 may receive the index R of the FLCS resource and determines (i) the index h of the first FLCS tile for the FLCS resource and (ii) the index r of the transmission unit to which the FLCS resource is mapped. You may. The FLCS resource R then becomes the transmission unit r in tile segment 0 of FLCS tile h, the transmission unit r in tile segment 1 of FLCS tile h + 1, and the transmission unit r in tile segment 2 of FLCS tile h + 2. It may be mapped to the transmission unit r. For clarity, Figure 6 shows three consecutive FLCS tiles used for the FLCS resource R. The three FLCS tiles may be wrapped around as described below.
In the design shown in Figure 6, third-order diversity is achieved by mapping FLCS resources to three transmission units in three different FLCS tiles when L 3. In addition, FLCS resources are mapped to 3 different tile segments in 3 FLCS tiles, thus occupying different time frequency positions in 3 FLCS tiles. FLCS resources may observe both frequency diversity (by mapping to three different hop ports) and time diversity (by mapping to multiple different OFDM symbols).
The design shown in Figure 6 can achieve third-order diversity regardless of the number of FLCS tiles used for the common segment. If L = 1, FLCS resources are mapped to three transmission units in the three tile segments 0, 1 and 2 of one FLCS tile. For L = 2, FLCS resources are mapped to three transmission units in tile segments 0 and 2 in one FLCS tile and in tile segment 1 in another FLCS tile. If L 3, FLCS resources are mapped to three transmission units in tile segments 0, 1 and 2 of the three FLCS tiles.
In one design, localized mapping may be achieved by mapping four contiguous FLCS resources to a cluster of four transmission units. Seeing FIG. 5 again, four contiguous FLCS resources may be mapped to four adjacent transmission units 0-3 in the three tile segments, and the next four contiguous FLCS resources It may be mapped to 4 adjacent transmission units 4-7 in the 3 tile segments, and the next 4 consecutive FLCS resources are 4 adjacent transmissions in the 3 tile segments. It may be mapped to units 8 to 11, and so on. The radio channel response may be assumed to be relatively static across each cluster of four transmission units. Values for the control channel may be transmitted within four consecutive FLCS resources and then further mapped to a cluster of four adjacent transmission units within each tile segment. This value will then observe a relatively constant channel response for each cluster, which may improve demodulation performance. Transmission units 32-35 are in a 1x2 cluster to utilize the remaining transmission units in the FLCS tile. Localized mapping may also be performed for other cluster sizes and shapes (eg 2x3 clusters, 3x3 clusters, etc.).
Regarding the first FLCS resource mapping method, the FLCS resource R may be mapped to three transmission units according to the following procedure. <maths num="3"><img file="JP5425965B2_D0004.tif" /></maths>
3. About k = {0, 1, 2} a. p<sub>k</sub> = F<sub>p</sub><sup>k</sup>(r<sub>I</sub>) And here, F<sub>p</sub><sup>k</sup>Is the hop port mapping function for tile segment k. b. t<sub>k</sub> = F<sub>S</sub><sup>k</sup>(r<sub>I</sub>) And here, F<sub>S</sub><sup>k</sup>Is the OFDM symbol mapping function for tile segment k. c. h<sub>k</sub> = (h + k) mod L equation (4) Index h<sub>k</sub>Index t in FLCS tiles with<sub>k</sub>Index p in an OFDM symbol with<sub>k</sub>Hop ports with are assigned to FLCS resources with index R. The above design has some desirable features, which are described in detail below.
For clarity, the following terms are used in the description herein. "Crossing" refers to passing through a set of elements only once (eg, from the first element to the last element in the set). "Circulating" refers to passing through a set of elements multiple times (eg, each time from the first element to the last element in the set).
Figure 7 shows the mapping of FLCS resources to different starting FLCS tiles for the first FLCS resource mapping method. Equation (2) is N for the common segment<sub>FLCS</sub>Each of the four FLCS resources for each of the starting FLCS tiles, cycling through the FLCS resources, starting at FLCS tile 0, wrapping back to FLCS tile 0 after reaching FLCS tile L-1 Map pairs. For the first 4L FLCS resources, FLCS resources 0-3 are mapped to starting FLCS tile 0, FLCS resources 4-7 are mapped to starting FLCS tile 1, and so on, and FLCS Resources 4L-4 to 4L-1 are mapped to the starting FLCS tile L-1. For the next 4L FLCS resources, FLCS resources 4L ~ 4L + 3 are mapped to the starting FLCS tile 0, FLCS resources 4L + 4 ~ 4L + 7 are mapped to the starting FLCS tile 1, and so on. FLCS resources 8L-4 to 8L-1 are mapped to the starting FLCS tile L-1. Mapping continues until all FLCS resources have been mapped to the appropriate starting FLCS tile. To achieve localized mapping for each set of four FLCS resources (except for the last 6L FLCS resources mapped to transmission units 32-35), the FLCS resource consists of four parties. Mapped in pairs. The mapping in Figure 7 maps L contiguous pairs of 4 FLCS resources to the same cluster of 4 transmission units in L FLCS tiles, followed by the following 4 FLCS resources: L contiguous pairs are symmetric in that they are mapped to different clusters of 4 transmission units in L FLCS tiles, and so on.
FIG. 7 further shows the mapping of each set of four FLCS resources to the transmission unit with respect to the first FLCS resource mapping method. For each FLCS tile, equation (3) puts the first set of four FLCS resources in the FLCS tile into transmission units 0-3 and the second set of four FLCS resources into transmission units 4-7. In contrast, the same applies below, and the last set of four FLCS resources is mapped to transmission units 32 to 35 (not shown in Figure 7).
Each FLCS resource has its own index h<sub>0</sub>, H<sub>1</sub>And h<sub>2</sub>It is mapped to 3 tile segments 0, 1 and 2 in up to 3 different FLCS tiles with, and they are calculated as shown in equation (4). h<sub>0</sub>Is equal to the starting FLCS tile index h provided by equation (2). h<sub>1</sub>And h<sub>2</sub>Is for the next two FLCS tiles, which may be wrapped around to 0 by "mod L" operation after reaching L-1. When L = 2, h<sub>2</sub>May be equal to h, and if L = 1, h<sub>1</sub>And h<sub>2</sub>May be equal to h.
Each FLCS resource is mapped to three transmission units with the same index r in the three tile segments 0, 1 and 2, respectively. For k {0,1,2}, for each tile segment k, the function F<sub>p</sub><sup>k</sup>Is a hop port p to the transmission unit r<sub>k</sub>To supply. Also, the function F<sub>S</sub><sup>k</sup>Is the transmission unit r in the OFDM symbol period t<sub>k</sub>To supply. Function F for tile segment 0<sub>p</sub><sup>0</sup>And F<sub>S</sub><sup>0</sup>May be determined by the tile segment on the left in Figure 5 and is the function F for tile segment 1.<sub>p</sub><sup>1</sup>And F<sub>S</sub><sup>1</sup>May be determined by the central tile segment, the function F for tile segment 2.<sub>p</sub><sup>2</sup>And F<sub>S</sub><sup>2</sup>May be determined by the tile segment on the right. For the designs described above, the FLCS resource R is (i) FLCS tile h<sub>0</sub>OFDM symbol period t for tile segment 0 in<sub>0</sub>Hop port in p<sub>0</sub>For the transmission unit r of (ii) FLCS tile h<sub>1</sub>OFDM symbol period t for tile segment 1 in<sub>1</sub>Hop port in p<sub>1</sub>For transmission unit r, and (iii) FLCS tile h<sub>2</sub>OFDM symbol period t for tile segment 2 in<sub>2</sub>Hop port in p<sub>2</sub>It is mapped to the transmission unit r of.
In the second FLCS resource mapping scheme, FLCS resources are mapped to transmission units in a common segment in a way that achieves scalability, third-order diversity, and avoidance of forbidden zones. The second FLCS resource mapping method may also be referred to as the distributed resource channel (DRCH) mapping method.
Figure 8 shows the design of FLCS tiles that may be used for the second FLCS resource mapping scheme. In this design, transmission units that are in a forbidden zone and are not available for use for FLCS resources are marked with an "X". Unavailable transmission units may be used for channels such as forward common pilot channels and forward beacon pilot channels. Transmission units that are not in a forbidden zone are due to FLCS resources. Available for use. Number of transmission units available N<sub>AVAIL</sub>Depends on the total number of transmission units in the FLCS tile and the number of transmission units that are not available. Available transmission units may be assigned a unique index starting with 0 for the transmission unit in the lower left corner of the FLCS tile and ending for the transmission unit in the upper right corner. In the example shown in FIG. 8, the FLCS tile contains 38 unusable transmission units and 90 available transmission units with indexes 0-89.
For the second FLCS resource mapping method, the total number of FLCS resources for the common segment may be given as follows: <maths num="4"><img file="JP5425965B2_D0005.tif" /></maths>
N<sub>FLCS</sub>FLCS resources are 0 ~ N<sub>FLCS</sub>It may be assigned an index of -1. The number of FLCS resources M per FLCS tile may be given as: <maths num="5"><img file="JP5425965B2_D0006.tif" /></maths>
Figure 9 shows the mapping of FLCS resources to three transmission units to achieve third-order diversity for the second FLCS resource mapping scheme. In this design, FLCS resources with index R are mapped to three transmission units in up to three consecutive FLCS tiles. The mapping unit 910 may receive the index R of the FLCS resource, (i) the index h of the first FLCS tile for the FLCS resource, and (ii) in the first FLCS tile to which the FLCS resource is mapped. The index r of the transmission unit may be determined. The FLCS resource R may then be mapped to the transmission unit r in FLCS tile h, the transmission unit r + M in FLCS tile h + 1, and the transmission unit r + 2M in FLCS tile h + 2. .. For clarity, Figure 9 shows three consecutive FLCS tiles used for the FLCS resource R. As described below, the three FLCS tiles may be further wrapped around.
In the design shown in Figure 9, when L 3, third-order diversity is achieved by mapping FLCS resources to three different transmission units in three different FLCS tiles. Third-order diversity may also be achieved when one or two FLCS tiles are used for a common segment.
For the second FLCS resource mapping method, FLCS resource R may be mapped to three transmission units by the procedure below. 1. Define h = R mod L equation (7). 2. <maths num="6"><img file="JP5425965B2_D0007.tif" /></maths>
3. About k = {0, 1, 2} a. <maths num="7"><img file="JP5425965B2_D0008.tif" /></maths>
b. h<sub>k</sub> = (h + k) mod L Equation (10) c. index h<sub>k</sub>Index r in FLCS tiles with<sub>k</sub>The transmission unit with is assigned to the FLCS resource with index R.
Figure 10 shows the mapping of FLCS resources to multiple different starting FLCS tiles for the second FLCS resource mapping scheme. Equation (7) is N for the common segment<sub>FLCS</sub>Map each FLCS resource to each starting FLCS tile by traversing the FLCS resources, starting with FLCS tile 0, wrapping back to FLCS tile 0 after reaching FLCS tile L-1 .. For the first L FLCS resources, FLCS resources 0 to L-1 are mapped to the starting FLCS tiles 0 to L-1, respectively. For the next L FLCS resources, FLCS resources L ~ 2L-1 are mapped to the starting FLCS tiles 0 ~ L-1, respectively. The mapping continues until all FLCS resources have been mapped to the appropriate starting FLCS tile. The mapping in Figure 10 maps L consecutive FLCS resources to the same transmission unit in L FLCS tiles, after which the next L consecutive FLCS resources are in L FLCS tiles. It is symmetric in that it is mapped to another transmission unit of, and so on.
Figure 10 also shows the mapping of each FLCS resource to the transmission unit for the second FLCS resource mapping scheme. For each FLCS tile, Equation (8) maps the first FLCS resource in the FLCS tile to transmission unit 0 and the second FLCS resource to transmission unit 1, and so on.
Each FLCS resource has its own index h<sub>0</sub>, H<sub>1</sub>And h<sub>2</sub>Each index r in up to 3 different FLCS tiles with<sub>0</sub>, R<sub>1</sub>And r<sub>2</sub>May be mapped to three different transmission units with, which are calculated as shown in equations (9) and (10). h<sub>0</sub>Is equal to the starting FLCS tile index h provided by equation (7). h<sub>1</sub>And h<sub>2</sub>May wrap around to 0 for the next two FLCS tiles after reaching L-1 by the "mod L" operation. r<sub>0</sub>Is equal to the transmission unit index r provided by equation (8). When L = 2, h<sub>2</sub>May be equal to h, and if L = 1, h<sub>1</sub>And h<sub>2</sub>May be equal to h. r<sub>1</sub>Is equal to r + M, r<sub>2</sub>Is equal to r + 2M. FLCS resource R is the FLCS tile h<sub>0</sub>Transmission unit in r<sub>0</sub>, FLCS tile h<sub>1</sub>Transmission unit in r<sub>1</sub>, And FLCS tile h<sub>2</sub>Transmission unit in r<sub>2</sub>Mapped to.
Regarding the second FLCS resource mapping method, transmission units 0 to M-1 may be considered to belong to tile segment 0, and transmission units M to 2M-1 belong to tile segment 1. It may be considered that the transmission unit, 2M ~ 3M-1, belongs to tile segment 3. Each tile segment may contain M transmission units. Different Fs for 3 tile segments<sub>H</sub><sup>k</sup>() And F<sub>S</sub><sup>k</sup>The second FLCS resource mapping method may be similar to the first FLCS resource mapping method, albeit according to the () mapping function.
The system may support only the first FLCS resource mapping method, only the second FLCS resource mapping method, or both mapping methods. If both mapping methods are supported, either the first or second FLCS resource mapping method may be chosen for use. For example, the parameter UseDRCHForFLCS may be set to 0 to select the first FLCS resource mapping method, or it may be set to 1 to select the second FLCS resource mapping method.
Two FLCS resource mapping schemes have been described above for common segments. FLCS resources may also be mapped to available transmission units in L FLCS tiles for a common segment by other methods based on other FLCS resource mapping schemes.
The control channels in Table 1 may be transmitted on the common segment in various ways. The number of FLCS resources allocated to each control channel may depend on the amount of control information transmitted on that control channel, as well as the way the control information is transmitted. In one design, the first seven control channels in Table 1 are sequentially allocated FLCS resources. Table 2 shows the design for sequentially allocating FLCS resources to the seven control channels.<tables num="2"><img file="JP5425965B2_D0009.tif" /></tables>
In one design, N<sub>a</sub>The ACK values may be transmitted over the F-ACKCH, where N<sub>a</sub> 0, and up to 4 ACK values may be transmitted within a set of 4 FLCS resources. A sequence of 12 symbols may be generated for each ACK value, {Z<sub>00</sub>, Z<sub>01</sub>, Z<sub>02</sub>, Z<sub>10</sub>, Z<sub>11</sub>, Z<sub>12</sub>, Z<sub>20</sub>, Z<sub>21</sub>, Z<sub>22</sub>, Z<sub>30</sub>, Z<sub>31</sub>, Z<sub>32</sub>May be written as}, where Z<sub>ij</sub>Is the symbol sent on the FLCS resource i in the jth FLCS tile. The symbol sequence may be generated based on the ACK value, the sector identifier (ID) for the sector transmitting the ACK value, and the media access control (MAC) ID of the receiving terminal. Four 4-chip orthogonal sequences (eg, four columns of a 4x4 DFT matrix) may be used for four ACK values that may be transmitted simultaneously on the same set of multiple FLCS resources. The symbol sequence for each ACK value may be generated based on the orthogonal sequence for that ACK value. For each ACK value, the four symbols Z<sub>0j</sub>, Z<sub>1j</sub>, Z<sub>2j</sub>And Z<sub>3j</sub>Each set of is generated based on an orthogonal sequence with respect to its ACK value and may be sent over four adjacent transmission units in one FLCS tile j.
In one design, N<sub>b b</sub>The "packet start point (SP) value" may be transmitted over the F-SPCH, where N<sub>b b</sub> 0, and up to 4 SP values may be transmitted in a set of 4 FLCS resources. A sequence of 12 symbols may be generated for each SP value based on its SP value and sector ID (eg, in a manner similar to an ACK value). Four 4-chip orthogonal sequences may be used for up to four SP values that may be transmitted simultaneously on the same set of four FLCS resources.
In one design, N<sub>c</sub>Reverse activity bit (RAB) values may be transmitted over the F-RABCH, where N<sub>c</sub> 0, and each RAB value may be transmitted within two FLCS resources. Series of 6 symbols {c<sub>0</sub>, C<sub>1</sub>, C<sub>2</sub>, C<sub>3</sub>, C<sub>4</sub>, C<sub>5</sub>} May be generated for each RAB value based on its RAB value and sector ID. The symbol sequence may be transmitted over 6 transmission units for 2 FLCS resources.
In one design, N<sub>d</sub>Individual PQI reports may be sent over F-PQICH, where N<sub>d</sub> 0, and each PQI report may be sent within two FLCS resources. The PQI report may contain a 4-bit PQI value, encoded based on its PQI value, sector ID, and MAC ID of the receiving terminal, and is a sequence of 6 symbols {c<sub>0</sub>, C<sub>1</sub>, C<sub>2</sub>, C<sub>3</sub>, C<sub>4</sub>, C<sub>5</sub>} May be mapped to. The symbol sequence for each PQI report may be transmitted over 6 transmission units for 2 FLCS resources.
In one design, N<sub>e</sub>A number of "fast OSI reports" may be sent over F-FOSICH, where N<sub>e</sub> 0, and each "fast OSI report" may be sent within two FLCS resources. A "fast OSI report" may contain a 4-bit "fast OSI value", encoded based on its fast OSI value and sector ID, and a sequence of 6 symbols {c<sub>0</sub>, C<sub>1</sub>, C<sub>2</sub>, C<sub>3</sub>, C<sub>4</sub>, C<sub>5</sub>} May be mapped to. The symbol sequence for each "fast OSI report" may be transmitted over six transmission units for two FLCS resources. To reduce transmit power, a fast OSI value of "0000" (which is most likely to be transmitted) may be mapped to a sequence of symbols with a value of 0.
In one design, N<sub>f</sub>A piece of "report of thermal interference (IOT)" may be sent over the F-FIOTCH, where N<sub>f</sub> 0, and each IOT report may be sent within two FLCS resources. The IOT report may contain a 4-bit IOT value, encoded based on that IOT value and sector ID, and a sequence of 6 symbols {c<sub>0</sub>, C<sub>1</sub>, C<sub>2</sub>, C<sub>3</sub>, C<sub>4</sub>, C<sub>5</sub>} May be mapped to. The symbol sequence for each IOT report may be transmitted over six transmission units for two FLCS resources.
In one design, N<sub>g</sub>The power control (PC) bits may be transmitted over the F-PCCH, where N<sub>g</sub> 0, and up to 3 PC bits may be transmitted on one FLCS resource. For each PC bit, a symbol may be generated based on that PC bit and sector ID. Up to three symbols of up to three PC bits may be transmitted over three transmission units for one FLCS resource.
Table 2 shows the specific design for allocating FLCS resources to control channels. In this design, control channels that benefit from localized mapping, such as F-ACKCH and F-SPCH, are allocated FLCS resources first. These FLCS resources are mapped to multiple adjacent transmission units. Control channels that do not benefit from localized mapping, such as the F-PCCH, are allocated FLCS resources last. These FLCS resources may be mapped to transmission units 32-35 that are located throughout the FLCS tile. FLCS resources may also be allocated to control channels in other ways.
F-SCCH may be transmitted on a common segment or on K LAB segments in various ways. In one design, either (i) the first FLCS resource mapping method is used and the LAB segment does not exist, or (ii) the second FLCS resource mapping method is used. , F-SCCH may be transmitted on a common segment.
In one design, the F-SCCH may carry a variable number of packets. Each packet may be encoded and mapped to NSYM symbols by QPSK or to NSYM / 2 symbols by 16QAM. Therefore, one packet may be transmitted by QPSK in NSYM transmission units, and two packets may be transmitted by 16QAM in NSYM transmission units. P packet pairs may be transmitted over the F-SCCH, where P may depend on the number of symbols per packet pair and the number of transmission units available for the F-SCCH. Each packet pair is sent in QPSK, one packet with an index (a, 0), or 16QAM, two packets with an index (a, 0) and (a, 1). May contain any of, where a {0, ..., P-1} is the index for the packet pair, where 0 and 1 are the packets 0 and 1 (applicable) with respect to the packet pair. If) is displayed.
In the first F-SCCH mapping method, P packet pairs may be mapped to transmission units in L FLCS tiles of a common segment according to the procedure below. 1. Initialize the hop port counter variable i, the block counter variable k, and the OFDM symbol counter variable j to 0. 2. Initialize the modulation symbol index p (n) = 0 for n = 0,1,2, ..., P-1. 3. If the hop port counter variable i is the hop port available for F-SCCH a. Define a = (k + j + i) mod Define as expression (11) b. If a packet with an index (a, 0) is sent using QPSK, define b = 0 and Otherwise, Eq. (12), which defines b = p (a) mod 2. c. If this packet is sent using QPSK, it has an index (a, 0) on the i-th hop port of the j-th OFDM symbol in the k-th FLCS tile of the common segment. Place the packet on the modulation symbol with index p (a). d. If this packet is sent using 16QAM, the index (a, b) on the i-th hop port of the j-th OFDM symbol in the k-th FLCS tile of the common segment Index from the provided packet <maths num="8"><img file="JP5425965B2_D0010.tif" /></maths>
Place on a modulated symbol with e. Increment p (a) by one. 4. Increment i by one, and if i = 16, set k = k + 1 and set i = 0. 5. If k L, set k = 0 and increment j by one. 6. If j 8, exit, otherwise go to step 3.
For the first F-SCCH mapping scheme, the procedure starts at OFDM symbol period 0, traverses through all 16 hop ports for each of the L FLCS tiles, and one for each transmission unit. Map packet pairs. The packet pair mapped to the transmission unit in the hop port i of the OFDM symbol period j in the FLCS tile k is determined by Eq. (11). Equation (11) traverses P packet pairs as the hop port index i is incremented.
The counter variable p (a) is maintained for each packet pair and indicates the next symbol for transmission within the next transmission unit available for that packet pair. The counter variable p (a) for each packet pair is initialized to 0. Then, whenever packet-to-a is mapped to an available transmission unit and QPSK is used, the symbol p (a) of packet a is mapped to this transmission unit and the index p (a). Is incremented. When 16QAM is used, the symbols from two packets in a packet pair are alternately mapped to the available transmission units for this packet pair, for example, the symbols from packet (a, 0) are packets. It is mapped to the available transmission units for pair a, and then the symbols from packet (a, 1) are mapped to the next available transmission unit for packet vs. a.
After traversing through all transmission units / hop ports in one OFDM symbol cycle, the procedure traverses through all transmission units in the next OFDM symbol cycle and repeats the mapping. Each of the available transmission units may be identified and used for F-SCCH by traversing through all transmission units in all L FLCS tiles of the common segment.
FIG. 11 shows an exemplary mapping of five packet pairs for F-SCCH to transmission units in a common segment based on the first F-SCCH mapping scheme. For simplicity, each packet pair contains one packet sent using QPSK. In FIG. 11, for each FLCS tile in the common segment, the packets mapped to each transmission unit in that FLCS tile are labeled. Transmission units that are not available for F-SCCH are shown with a gray shadow and marked with an "X". The transmission units available for F-SCCH are shown unshaded, and each transmission unit is each marked with an index of packets mapped to that transmission unit. For simplicity, Figure 11 assumes that only F-SCCH is transmitted on the common segment. If other control channels are transmitted, the transmission units used for these other control channels are not available and are marked with an "X".
For simplicity, FIG. 11 shows only one packet with index 0 out of the five packets sent over the F-SCCH in this example. The symbol for packet 0 may be transmitted within the individual available transmission units to which packet 0 is mapped. FIG. 11 shows the mapping of some symbols of packet 0 to some available transmission units to which packet 0 is mapped. As described above, the packet 0 symbol is mapped to the available transmission units for that packet in sequential order. However, the mapping is because symbols and FLCS tiles are continuously numbered sequentially from top to bottom, whereas hop ports are numbered sequentially from bottom to top. It looks random in Figure 11. Each symbol of the remaining packet may be mapped to an available transmission unit in a similar manner.
F-SCCH may also be transmitted within K LAB segments. In one design, P packet pairs for F-SCCH may be sent within each LAB segment containing 3 FLCS tiles, where P is the number of symbols per packet pair, and LAB. It may depend on the number of transmission units available per segment. The entire PK packet pair with an index of 0 to PK-1 may be transmitted within K LAB segments. Each packet pair is sent in QPSK, one packet with an index (a, 0), or 16QAM, two packets with an index (a, 0) and (a, 1). May include any of, where a {0, ..., PK-1} is the index for the packet pair, where 0 and 1 are packets 0 and 1 for that packet pair (applicable). (If possible) is displayed.
In the F-SCCH mapping method, P packet pairs with indexes of q, P ~ (q + 1), and P-1 are transmitted units in the three FLCS tiles of the LAB segment q according to the procedure below. It may be mapped to q {0, ..., K-1}. 1. Initialize the hop port counter variable i, the block counter variable k, and the OFDM symbol counter variable j to 0. 2. Initialize the modulation symbol index p (n) = 0 for n = q · P, ..., (q + 1) · P-1. 3. If the hop port counter variable i is an available hop port for F-SCCH a. a = [(k + j + i) mod P] + q Define as Eq. (13) b. If a packet with an index (a, 0) is sent using QPSK, define b = 0, Otherwise, Eq. (14), which defines b = p (a) mod 2. c. If this packet is sent using QPSK, it has an index (a, 0) on the i-th hop port of the j-th OFDM symbol in the k-th FLCS tile of LAB segment q. Place the packet on the modulation symbol with index p (a). d. If this packet is sent using 16QAM, it has an index (a, b) on the i-th hop port of the j-th OFDM symbol in the k-th FLCS tile of LAB segment q. Index from the packet <maths num="9"><img file="JP5425965B2_D0011.tif" /></maths>
Place a modulation symbol with e. Increment p (a) by one. 4. Increment i by one, and if i = 16, set k = k + 1 and set i = 0. 5. If k 3, set k = 0 and increment j by one 6. If j 8, exit, otherwise go to step 3.
The second F-SCCH mapping method is similar to the first F-SCCH mapping method with the following differences. First, the P packet pairs for the LAB segment q are mapped to the 3 FLCS tiles for the LAB segment q in the second scheme, while the P packet pairs for the F-SCCH are the first. Mapped to L FLCS tiles for a common segment of method 1. Second, the available transmission units in the three FLCS tiles for the LAB segment q for the second scheme are different from the available transmission units in the L FLCS tiles for the common segment for the first scheme. Maybe. Third, the index a follows the P packets transmitted in each LAB segment for the second method and the P packets for the F-SCCH for the first method. For both schemes, by traversing through a number of different transmission units in a predefined order, P packet pairs are circulated through these transmission units and mapped to them. These two schemes distribute the packet's symbols almost uniformly across each FLCS tile used for each packet.
Two F-SCCH mapping schemes have been described above for F-SCCH. Packets for F-SCCH may also be mapped to available transmission units based on other mapping schemes. In another F-SCCH mapping scheme, the available transmission units may be determined first, and P packet pairs may be sequentially mapped to these available transmission units. In this scheme, a single counter variable p (a) may be maintained for all P packet pairs.
FIG. 12 shows the design of method 1200 for communicating control information. Method 1200 may be performed by a base station and / or a terminal. The tile index h and transmission unit index r for the control resource index R may be determined (block 1212). A control resource with index R (eg, FLCS resource) may be mapped to a transmission unit with index r in the tile at index h (block 1214). The control resource may be one of a plurality of control resources for a control segment containing L tiles, where L 1. Each tile may contain multiple transmission units. Block 1212 may be executed for any number of tiles based on a mapping scheme that distributes multiple control resources across L tiles. The mapping method may be the mapping method shown in the equations (2) and (3), the mapping method shown in the equations (7) and (8), or some other mapping method. Control information may be sent or received by the control resource (block 1216).
In one design of symmetric mapping, multiple pairs of S control resources may be formed for multiple control resources, where S 1. Each batch of L contiguous sets of S control resources may be mapped to S transmission units at the same location in each L tile. Multiple different batches of L contiguous pairs of S control resources may be mapped to different locations of L tiles.
In one design of localized mapping, multiple pairs of S control resources may be formed for multiple control resources, where S> 1. Each set of S control resources may be mapped to a cluster of S adjacent transmission units within each of at least one or more tiles. Multiple sets of S control resources may be traversed, and each set of S control resources maps to at least one tile determined by patrol through L tiles. May be done. In one design, S = 4, and each pair of four control resources may be mapped to a cluster of four adjacent transmission units, each in at least one or more tiles (eg,). , As shown in Figure 7 and equations (2) and (3). In one design of distributed mapping, multiple control resources may be traversed, and each control resource maps to at least one tile, which is determined by cycling through L tiles. It may be done (eg, as shown in Figure 10 and equations (7) and (8)).
To gain diversity with respect to control resources, control resources with index R may be mapped to multiple (eg, 3) transmission units in at least one tile in L tiles. good. The plurality of transmission units may be in multiple different locations on the at least one tile. The index of the plurality of transmission units may be determined based on the transmission unit index r.
In one design of diversity, each tile may be associated with multiple tile segments, and each tile segment may each contain a different subset of multiple transmission units within the tile. .. The plurality of transmission units in each tile segment may have a previously assigned index, for example, as shown in FIG. The control resource with index R is mapped to one transmission unit with index r within each of the tile segments for at least one tile, for example, as shown in Figure 6. May be done.
In another design of diversity, the transmission units available for use on each tile may be assigned a unique index. A control resource with index R may be mapped to multiple transmission units with multiple different indexes in at least one tile. The indexes of the plurality of transmission units may be determined based on the transmission unit index r, or may be separated by M, for example, as shown in FIG. M may be determined based on the number of transmission units available for use in each tile and the number of transmission units to which control resources are mapped.
The plurality of control resources may be allocated to the plurality of control channels, one control channel at a time, and in a predefined order. Control channels that rely on localized mapping may be assigned control resources first, and control channels that do not depend on localized mapping may be assigned control resources later.
FIG. 13 shows the design of the device 1300 for communicating control information. The apparatus 1300 sets the index R for the transmission unit having the index r in the tile of the index h, a means for determining the tile index h and the transmission unit index r for the control resource index R (module 1312). It includes means for mapping the provided control resources (module 1314) and means for transmitting or receiving control information through the control resources (module 1316).
FIG. 14 shows the design of the method 1400 for exchanging control information. Method 1400 may be performed by a base station and / or a terminal. The transmission unit available for a control channel (eg, F-SCCH) may be determined from among all transmission units for the control segment (eg, common segment or LAB segment) to which the control channel is transmitted. Transmission units that are not available for the control channel may be excluded (block 1412). Unavailable transmission units may include transmission units used for pilots, other control channels, other transmissions, and so on.
A set of transmission units for a packet may be determined from among the transmission units available for the control channel and may be distributed across these available transmission units (block 1414). The control segment may include at least one tile, and each tile may each include a plurality of transmission units. In one design, multiple transmission units in each tile may be traversed, and each transmission unit may cycle through multiple packets (eg, as shown in FIG. 11) in the plurality of packets. It may be assigned to one packet of. All transmission units in at least one tile to which the packet is mapped may be determined. After that, a set of a plurality of transmission units for the packet may be determined from among these transmission units, but transmission units that are not available for the control channel may be excluded. The packet may be transmitted or received via the set of transmission units (block 1416).
FIG. 15 shows the design of the device 1500 for exchanging control information. The device 1500 determines the transmission unit that can be used for the control channel from all the transmission units for the control segment to which the control channel is transmitted, and excludes the transmission unit that is not available for the control channel (means Module 1512), a means for determining a set of transmission units for a packet from among the transmission units available for the control channel (module 1514), and transmitting or transmitting the packet through that set of transmission units. Includes means for receiving (module 1516).
Modules in FIGS. 13 and 15 may include processors, electronic devices, hardware devices, electronic components, logic circuits, memory, etc., or any combination thereof.
FIG. 16 shows a block diagram of the design of base station 110 and terminal 120, which is one of the base stations and one of the terminals in system 100 in FIG. Base station 110 transmits control information about multiple different control channels from controller / processor 1620 and traffic data from data source 1612 about terminals scheduled for transmission over forward links (TX) data. Processor 1614 may receive. For example, the controller / processor 1620 may provide control information to the control channels in Table 1. The scheduler 1630 may provide resource allocations for scheduled terminals, and these allocations may be transmitted in control information. The TX data processor 1614 may process data and control information (eg, encoding and symbol mapping), perform modulation (eg for OFDM), and provide an output chip. The transmitter (TMTR) 1616 may tune the output chip (eg, convert it to analog, filter it, amplify it, and convert it with an upconverter) to generate a forward link signal, which is transmitted by antenna 1618. You may.
At terminal 120, antenna 1652 may receive a forward link signal from base station 110 and supply the received signal to receiver (RCVR) 1654. Receiver 1654 may tune and digitize the received signal to provide a sample. The receive (RX) data processor 1656 may perform demodulation on the sample (eg for OFDM) to demodulate and decode the resulting symbols to obtain the decoded data and control information. Processor 1656 may supply the decrypted data to the data sink 1658 and the decoded control information to the controller / processor 1660.
In the reverse link, the TX data processor 1674 at terminal 120 may receive traffic data from data source 1672 and control information from controller / processor 1660. Data and control information may be processed by the TX data processor 1674 (eg, encoded, symbol-mapped, and modulated) and further tuned by transmitter 1676 to generate a reverse link signal. It may be transmitted by antenna 1652. At base station 110, reverse link signals from terminal 120 and other terminals may be received by antenna 1618, tuned by receiver 1632, demodulated and decoded by RX data processor 1634.
Controllers / processors 1620 and 1660 may direct operations at base station 110 and terminal 120, respectively. The controller / processor 1620 may direct the transmission of data and control information on the forward link, and may determine the control resources to use for each control channel. The controller / processor 1620 and / or 1660 may perform method 1200 in FIG. 12, method 1400 in FIG. 14, and / or other methods according to the art described herein. The memories 1622 and 1662 may store program code and data for base station 110 and terminal 120, respectively.
The techniques described herein may be implemented by various means. For example, these techniques may be implemented in hardware, firmware, software or a combination thereof. For hardware implementation, the arithmetic processing unit used to execute the technology in an entity (eg, base station or terminal) is one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs). , Digital Signal Processors (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), Processors, Controllers, Microcontrollers, Microprocessors, Electronic Devices, To Perform the Functions Described herein. It may be implemented within other designed electronic units, computers, or combinations thereof.
For firmware and / or software implementation, the technology may be implemented in code that performs the functions described herein (eg, procedures, functions, modules, instructions, etc.). In general, any computer / processor readable medium that tangibly embodies the firmware and / or software code may also be used to implement the techniques described herein. For example, the firmware and / or software code may be stored in memory (eg, memory 1622 or 1662 in FIG. 16) and executed by a processor (eg, processor 1620 or 1660). The memory may be implemented inside the processor or outside the processor. The firmware and / or software code is also random access memory (RAM), read-only memory (ROM), non-volatile RAM (NVRAM), programmable ROM (PROM), electrically erasable and writable PROM (EEPROM), FLASH. It may be stored on a computer / processor readable medium such as memory, Programmable Disk, Compact Disk (CD), Digital Versatile Disk (DVD), Magnetic Device, Optical Data Storage Device, and the like. The code may be runnable by one or more computers / processors, and the computers / processors may be made to perform certain aspects of the functions described herein.
The above description of the disclosure is provided to allow any person skilled in the art to create or use the disclosure. Various changes to this disclosure will be readily apparent to those skilled in the art, and the general principles defined herein will apply to other variants without departing from the spirit and technical scope of this disclosure. You may. Therefore, this disclosure is not intended to be limited to the examples and designs described herein and should be given the broadest technical scope consistent with the principles and novel features presented herein. ..<u style="single">In addition, the invention described in the claims at the time of filing is added below.</u><u style="single">[C1]</u><u style="single">Determine the tile index h and transmission unit index r for the control resource index R and map the control resource with the index R to the transmission unit with the index r in the tile with the index h. At least one processor configured, where the control resource is one of a plurality of control resources for a control segment containing L tiles, where L is greater than or equal to 1 and each tile is plural. Including the transmission unit of</u><u style="single">With the memory attached to at least one of the processors</u><u style="single">A device for wireless communication.</u><u style="single">[C2]</u><u style="single">The at least one processor has a tile index h and a transmission unit index for the control resource index R based on a mapping scheme that distributes the plurality of control resources across the L tiles for any value of L. A device according to C1 that is configured to determine r.</u><u style="single">[C3]</u><u style="single">The at least one processor forms a plurality of pairs of S control resources with respect to the plurality of control resources, where S is 1 or more, and S transmissions at the same location in the L tiles. A device described in C1 that is configured to map each batch of L contiguous sets of S control resources to a unit.</u><u style="single">[C4]</u><u style="single">The at least one processor forms a plurality of pairs of S control resources with respect to the plurality of control resources, where S is greater than 1 and each of the at least one tile in the L tiles. A device described in C1 that is configured to map each set of S control resources to a cluster of S adjacent transmission units inside.</u><u style="single">[C5]</u><u style="single">The at least one processor traverses through a plurality of sets of the S control resources and S for at least one tile determined by patrolling through the L tiles. A device described in C4 that is configured to map each set of control resources.</u><u style="single">[C6]</u><u style="single">The at least one processor forms a plurality of sets of four control resources for the plurality of control resources, and is connected to four adjacent transmission units in each of the at least one tile in the L tiles. In contrast, the device described in C1 configured to map each set of four control resources.</u><u style="single">[C7]</u><u style="single">The at least one processor is configured to map each control resource to at least one tile determined by traversing through the plurality of control resources and patrolling through the L tiles. The device described in C1.</u><u style="single">[C8]</u><u style="single">The at least one processor provides a control resource with the index R to a plurality of transmission units in at least one tile in the L tiles in order to obtain diversity with respect to the control resource. The device according to C1, wherein the plurality of transmission units are configured to map, including a transmission unit having an index r in a tile having the index h.</u><u style="single">[C9]</u><u style="single">The device according to C8, wherein the at least one processor is configured to map a control resource with the index R to the plurality of transmission units at different locations on the at least one tile.</u><u style="single">[C10]</u><u style="single">The at least one processor provided the index R for three transmission units in at least one tile in the L tiles in order to obtain a third degree diversity with respect to the control resource. The device according to C1, wherein the three transmission units are configured to map control resources, wherein the three transmission units include a transmission unit with an index r in a tile with the index h.</u><u style="single">[C11]</u><u style="single">The device according to C10, wherein the at least one processor is configured to index three transmission units in the at least one tile based on the transmission unit index r.</u><u style="single">[C12]</u><u style="single">The device according to C10, wherein the three transmission units are in three different tiles and L is 3 or greater.</u><u style="single">[C13]</u><u style="single">Each tile is associated with a plurality of tile segments, each tile segment containing a different subset of the plurality of transmission units in the tile, wherein the at least one processor is the L tile. A device according to C1, configured to map a control resource with said index R to one transmission unit in each of the plurality of tile segments for at least one tile in.</u><u style="single">[C14]</u><u style="single">The device of C13, wherein the plurality of transmission units in each tile segment have a previously assigned index.</u><u style="single">[C15]</u><u style="single">The transmission units available for use in each tile are assigned a unique index, where the at least one processor has a different index in at least one of the L tiles. Described in C1 which is configured to map a control resource having the index R to a plurality of transmission units provided and determine the index of the plurality of transmission units based on the transmission unit index r. Equipment.</u><u style="single">[C16]</u><u style="single">The indexes of the plurality of transmission units are separated by M, where M is greater than 1 and is based on the number of transmission units available for use in each tile and the number of transmission units to which the control resource is mapped. The device according to C15, which is determined by.</u><u style="single">[C17]</u><u style="single">The device according to C1, wherein the at least one processor is configured to transmit control information to at least one terminal via the control resource.</u><u style="single">[C18]</u><u style="single">The device according to C1, wherein the at least one processor is configured to receive control information from a base station via the control resource.</u><u style="single">[C19]</u><u style="single">The device according to C1, wherein the at least one processor is configured to allocate the plurality of control resources to the plurality of control channels, one at a time, and in a predefined order. ..</u><u style="single">[C20]</u><u style="single">Determining the tile index h and transmission unit index r for the control resource index R,</u><u style="single">Mapping a control resource with index R to a transmission unit with index r in a tile with index h,</u><u style="single">Here, the control resource is one of a plurality of control resources for a control segment containing L tiles, L is 1 or more, and each tile contains a plurality of transmission units.</u><u style="single">A method for wireless communication.</u><u style="single">[C21]</u><u style="single">Forming a plurality of pairs of S control resources for the plurality of control resources, where S is 1 or more.</u><u style="single">Mapping each batch of L contiguous sets of S control resources to S transmission units at the same location in the L tiles</u><u style="single">The method described in C20 further comprising.</u><u style="single">[C22]</u><u style="single">Forming multiple pairs of S control resources for the plurality of control resources, where S is greater than 1.</u><u style="single">Mapping each pair of S control resources to a cluster of S adjacent transmission units in each of at least one tile in the L tiles.</u><u style="single">The method described in C20 further comprising.</u><u style="single">[C23]</u><u style="single">Forming a plurality of pairs of S control resources for the plurality of control resources, where S is 1 or more.</u><u style="single">Traversing through multiple sets of the S control resources</u><u style="single">To map each set of S control resources to at least one tile determined by patrol through the L tiles.</u><u style="single">The method described in C20 further comprising.</u><u style="single">[C24]</u><u style="single">Mapping the control resource with the index R to a plurality of transmission units in at least one tile in the L tiles to gain diversity with respect to the control resource, where. The plurality of transmission units include a transmission unit having an index r in a tile having the index h.</u><u style="single">The method described in C20 further comprising.</u><u style="single">[C25]</u><u style="single">Allocating the plurality of control resources to one control channel at a time and to a plurality of control channels in a predefined order.</u><u style="single">The method described in C20 further comprising.</u><u style="single">[C26]</u><u style="single">Means for determining the tile index h and transmission unit index r for the control resource index R,</u><u style="single">A means for mapping a control resource with index R to a transmission unit with index r in a tile with index h, and</u><u style="single">Here, the control resource is one of a plurality of control resources for a control segment containing L tiles, L is 1 or more, and each tile contains a plurality of transmission units.</u><u style="single">A device for wireless communication.</u><u style="single">[C27]</u><u style="single">A means for forming a plurality of pairs of S control resources for the plurality of control resources, where S is 1 or more.</u><u style="single">As a means for mapping each batch of L contiguous sets of S control resources to S transmission units at the same location in the L tiles.</u><u style="single">The device according to C26 further comprising.</u><u style="single">[C28]</u><u style="single">Means for forming multiple pairs of S control resources for the plurality of control resources, where S is greater than 1.</u><u style="single">As a means for mapping each set of S control resources to a cluster of S adjacent transmission units in each of at least one tile in the L tiles.</u><u style="single">The device according to C26 further comprising.</u><u style="single">[C29]</u><u style="single">A means for forming a plurality of pairs of S control resources for the plurality of control resources, where S is 1 or more.</u><u style="single">A means for traversing through a plurality of sets of the S control resources, and</u><u style="single">A means for mapping each set of S control resources to at least one tile determined by patrol through the L tiles.</u><u style="single">The device according to C26 further comprising.</u><u style="single">[C30]</u><u style="single">A means for mapping a control resource with the index R to a plurality of transmission units in at least one tile in the L tiles in order to obtain diversity with respect to the control resource. The plurality of transmission units include a transmission unit having an index r in a tile having the index h.</u><u style="single">The device according to C26 further comprising.</u><u style="single">[C31]</u><u style="single">Means for allocating the plurality of control resources to a plurality of control channels one at a time and in a predefined order.</u><u style="single">The device according to C26 further comprising.</u><u style="single">[C32]</u><u style="single">Code for having at least one computer determine the tile index h and transmission unit index r for the control resource index R,</u><u style="single">A code for causing at least one computer to map a control resource having an index R to a transmission unit having an index r in a tile having an index h.</u><u style="single">Here, the control resource is one of a plurality of control resources for a control segment containing L tiles, L is 1 or more, and each tile contains a plurality of transmission units.</u><u style="single">A computer program product with a computer-readable medium.</u><u style="single">[C33]</u><u style="single">The transmission unit available for the control channel is determined from all the transmission units for the control segment to which the control channel is transmitted, except for the transmission unit that is not available for the control channel, and the control From among the transmission units available for the channel, a set of transmission units for one packet was determined and configured to transmit or receive the packet through the set of transmission units. With at least one processor</u><u style="single">With the memory attached to at least one of the processors</u><u style="single">A device for wireless communication.</u><u style="single">[C34]</u><u style="single">The device of C33, wherein the set of transmission units for the packet is distributed across the transmission units available for the control channel.</u><u style="single">[C35]</u><u style="single">The device according to C33, wherein the transmission unit unavailable for the control channel includes a transmission unit used for a pilot, another control channel, another transmission, or a combination thereof.</u><u style="single">[C36]</u><u style="single">The device according to C33, wherein the control segment comprises at least one tile, wherein each tile comprises a plurality of transmission units.</u><u style="single">[C37]</u><u style="single">The device according to C36, wherein the at least one tile has the same pattern of unusable transmission units.</u><u style="single">[C38]</u><u style="single">The at least one processor is configured to traverse through the plurality of transmission units in each tile and assign each transmission unit to one of the plurality of packets for the control channel. , The device according to C36, wherein the one packet is determined by patrolling the plurality of packets.</u><u style="single">[C39]</u><u style="single">The at least one processor determines the transmission unit in each tile to which the packet is mapped and at least one to which the packet is mapped, except for transmission units that are not available for the control channel. The device according to C36, which is configured to determine a set of transmission units for the packet from among the transmission units in the tile.</u><u style="single">[C40]</u><u style="single">C33. The control segment comprises a plurality of tiles, each tile comprising a plurality of transmission units, wherein a set of transmission units for the packet is in a subset of the plurality of tiles. apparatus.</u><u style="single">[C41]</u><u style="single">The control segment contains three tiles for each of at least one segment, each tile contains a plurality of transmission units, wherein the set of transmission units for the packet is of one segment. The device described in C33, which is in 3 tiles for.</u><u style="single">[C42]</u><u style="single">Determining which transmission unit is available for the control channel from among all transmission units for the control segment to which the control channel is transmitted, except for transmission units that are not available for the control channel.</u><u style="single">Determining a set of transmission units for a packet from among the transmission units available for the control channel.</u><u style="single">Sending or receiving the packet through a set of transmission units</u><u style="single">A method for wireless communication.</u><u style="single">[C43]</u><u style="single">The control segment comprises at least one tile, each tile comprising a plurality of transmission units, further here.</u><u style="single">Crossing through the plurality of transmission units in each tile,</u><u style="single">Each transmission unit is assigned to one packet among the plurality of packets related to the control channel, and here, the one packet is determined by patrolling the plurality of packets.</u><u style="single">C42.</u><u style="single">[C44]</u><u style="single">The control segment comprises at least one tile, each tile comprising a plurality of transmission units, further here.</u><u style="single">Determining the transmission unit within each tile to which the packet is mapped</u><u style="single">A set of transmission units for the packet is determined from among the plurality of transmission units in the at least one tile to which the packet is mapped, except for transmission units that are not available for the control channel. To do</u><u style="single">C42.</u><u style="single">[C45]</u><u style="single">A means for determining a transmission unit available for a control channel from among all transmission units for a control segment to which the control channel is transmitted, except for transmission units that are not available for the control channel. When,</u><u style="single">A means for determining a set of transmission units for a packet from among the transmission units available for the control channel.</u><u style="single">Means for transmitting or receiving the packet through the set of transmission units</u><u style="single">A device for wireless communication.</u><u style="single">[C46]</u><u style="single">The control segment comprises at least one tile, each tile comprising a plurality of transmission units, further here.</u><u style="single">Means for traversing through the plurality of transmission units in each tile, and</u><u style="single">A means for allocating each transmission unit to one packet among the plurality of packets relating to the control channel, wherein the one packet is determined by patrolling the plurality of packets.</u><u style="single">The device according to C45.</u><u style="single">[C47]</u><u style="single">The control segment comprises at least one tile, each tile comprising a plurality of transmission units, further here.</u><u style="single">A means for determining the transmission unit in each tile to which the packet is mapped, and</u><u style="single">A set of transmission units for the packet is determined from among the transmission units in the at least one tile to which the packet is mapped, except for transmission units that are not available for the control channel. Means for</u><u style="single">The device according to C45.</u>
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Numbers
- Publication
- 5425965
- Publication, DOCDB
- 5425965
- Publication, EPODOC
- JP5425965B
- Application
- 107028
- Application, DOCDB
- 2012107028
- Application, EPODOC
- JP20120107028
Titles2
- Japanese
- 無線通信方式用の制御リソース・マッピング
- English
- Control resource mapping for wireless communication
Classification
- CPC, 15
- H04L5/0053
- H04L1/1692
- H04W72/04
- H04W52/146
- H04W52/16
- H04W52/243
- H04W52/247
- H04W52/362
- H04W52/60
- H04W72/54
- H04W72/23
- H04L5/0094
- H04L5/0037
- H04B1/713
- H04B7/2621
- IPC, 8
- H04J11 00
- H04W52 14
- H04W52 16
- H04W52 24
- H04W52 36
- H04W52 60
- H04W72 54
- H04W72 04