WO2011079653A1 - 无线通信系统中资源索引编码方法及基站 - Google Patents
无线通信系统中资源索引编码方法及基站 Download PDFInfo
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- WO2011079653A1 WO2011079653A1 PCT/CN2010/078654 CN2010078654W WO2011079653A1 WO 2011079653 A1 WO2011079653 A1 WO 2011079653A1 CN 2010078654 W CN2010078654 W CN 2010078654W WO 2011079653 A1 WO2011079653 A1 WO 2011079653A1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signaling for the administration of the divided path
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signaling for the administration of the divided path
- H04L5/0094—Indication of how sub-channels of the path are allocated
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
Definitions
- the present invention relates to the field of communications, and in particular to a resource index coding method and a base station in a wireless communication system.
- a base station performs scheduling control
- scheduling allocation of all available resources of the system is performed by a base station, for example, a resource used by a base station to allocate and perform downlink transmission, and a resource used by the terminal for uplink transmission.
- a resource allocation message needs to be transmitted in the downlink. If a reasonable resource index coding method and a resource allocation message generation method are not used, the downlink resources of the system are wasted, thereby reducing the transmission efficiency of the entire system.
- the base station may use different methods, different messages or signaling for resource indication, for example, in the Institute for Electrical and Electronic Engineers (IC) 802. In the 16d/e downlink, for the two-dimensional time domain _
- FIG. 1 is a schematic diagram of a resource mapping process of a 5 MHz bandwidth system according to the related art.
- the downlink resource mapping process generally includes: Subband Partitioning.
- the resource mapping indication information indicates the division and mapping of the frequency resources, and specifically includes the following information: downlink subband allocation number, uplink subband allocation number, downlink frequency partition configuration, uplink frequency partition configuration, downlink frequency partition subband allocation number, uplink Frequency partition subband allocation The number, the number of downlink contiguous resource unit allocations, the number of uplink contiguous resource unit allocations, the number of downlink contiguous resource units based on Miniband, and the number of contiguous resource units based on Miniband. As shown in FIG.
- each physical resource unit occupies several OFDM symbols in time, and these physical resource units are divided into subbands and/or microbands (Subband and/or Miniband) through a subband partitioning process, in FIG.
- one sub-band may be composed of N 1 (for example, 4) PRUs, and the PRUs that make up the sub-band are called PRU SB , and one of the P-bands is composed of N2 (for example, 1) PRUs, and then all piggybacked PRUs (referred to as PRU MB) and then through a microstrip substitution formed microstrip PRU (PPRU MB) after the replacement, and then all PRUSB PRUMB frequency-partitioning (frequency partitioning) is divided into one or more frequency sub
- FP0 which is referred to as PRU PPRUFPO
- an aliquot of PPRU MB subcarrier mapping this part after subcarrier mapping is referred to as PRU
- a distributed logical resource unit (DLRU) is called a contiguous logical resource unit (called a CLRU).
- a primary object of the present invention is to provide a resource index coding scheme in a wireless communication system to solve at least the above problems.
- the L reclaimed resource units in at least one of the plurality of system bandwidths supported by the wireless communication system are divided into M resource allocation units, and the M resource allocation units are divided into K group.
- the partial bits of the indication information are used to indicate the group and/or the indication type in which the resource allocation unit allocated for the terminal is located, indicating all but the partial bits in the message. Or a partial bit is used to indicate a resource allocation unit allocated to the terminal in the group.
- all or part of the bits in the indication information are indicated as a resource allocation unit allocated by the terminal in the form of a bitmap, and one bit in the bitmap Bitmap indicates a resource allocation unit or a logical resource unit.
- the base station divides the M resource allocation units into K groups, including: at least two groups intersect in the K group, wherein the two groups intersect at least two of the two groups There is one same resource allocation unit or logical resource unit; or, any two groups in the K group do not intersect, where the two groups do not intersect, and there is no identical resource allocation unit or logical resource in any two groups.
- the L logical resource units are all sub-band based logical resource units, wherein one sub-band includes one or more consecutive resource units.
- L is determined according to resource mapping indication information.
- the indication information is a fixed binary bit, or the number of bits indicating the information is determined according to the system bandwidth.
- the indication information indicates the location and/or number of resource allocation units allocated by the base station to the terminal in the M resource allocation units, the location including the starting location and/or the terminating location.
- the base station indicates, by the indication information, the location and/or the number of resource allocation units allocated for the terminal, and the resource allocation unit allocated by the terminal obtains the location and/or the number of the allocated logical resource units.
- the partial bits of the indication information are used to indicate the group in which the reclaimed resource unit allocated for the terminal is located, and all or part of the bits in the indication message except the partial bits are used to indicate the logical resource unit allocated for the terminal in the group.
- Bit i and Bit j are present in all or part of the bits except the partial bits in the indication message, so that N ⁇ Nj, where the number of logical resource units indicated by Bit i and Bit j are respectively ] ⁇ and Nj.
- all or part of the bits in the indication information are indicated as a logical resource unit allocated by the terminal in the form of a bitmap, and one bit in the bitmap Bitmap indicates one or more logical resource units.
- the base station divides the L resource allocation units into K groups, including: at least two groups intersect in the K group, where the two groups intersect at least one of the same physical resource unit or logical resource unit in the two groups; Or, any two groups in the K group do not intersect, wherein the two groups do not intersect, and there is no one physical resource unit or resource unit in any two groups.
- the L logical resource units are all sub-band based logical resource units, wherein one sub-band includes one or more consecutive resource units.
- L is determined according to resource mapping indication information.
- the indication information is a fixed binary bit, or the number of bits indicating the information is determined according to the system bandwidth.
- FIG. 2 is a flowchart of a resource index encoding method in a wireless communication system according to an embodiment of the present invention
- FIG. 3 is a flowchart according to an embodiment of the present invention.
- FIG. 4 is a block diagram showing a preferred structure of a base station according to an embodiment of the present invention
- FIG. 5 is a schematic diagram of a resource mapping process of a 5 MHz bandwidth system according to a preferred embodiment of the present invention.
- 6 is a resource unit index coding and indication diagram 1 of a 5 MHz bandwidth system according to a preferred embodiment 1 of the present invention
- FIG. 7 is a resource unit index coding and a 5 MHz bandwidth system according to a preferred embodiment 1 of the present invention;
- FIG. 1 is a resource unit index coding and a 5 MHz bandwidth system according to a preferred embodiment 1 of the present invention.
- FIG. 8 is a schematic diagram of resource element index coding and indication of a 5 MHz bandwidth system of a preferred embodiment 2 of the embodiment of the present invention
- FIG. 9 is a 5 MHz bandwidth system of a preferred embodiment 2 according to an embodiment of the present invention.
- Resource unit index coding and indication diagram 2; 10 is a resource unit index coding and indication diagram 1 of a 5 MHz bandwidth system according to a preferred embodiment 3 of the present invention
- FIG. 11 is a resource unit index coding and a 5 MHz bandwidth system according to a preferred embodiment 3 of the embodiment of the present invention
- FIG. 13 is a 5 MHz bandwidth system according to a preferred embodiment 4 of the embodiment of the present invention.
- FIG. 15 is a preferred embodiment according to an embodiment of the present invention.
- the resources in the following embodiments represent uplink resources or downlink resources.
- a resource index coding method in a wireless communication system is provided.
- Step S204 The base station sends the resource indication information (referred to as the indication information) to the terminal, where the indication information is used to indicate the resource allocation unit allocated by the base station to the terminal in the M resource allocation units.
- the indication information is used to indicate the resource allocation unit allocated by the base station to the terminal in the M resource allocation units.
- the number and/or location of resources allocated by the base station can be indicated by the indication information.
- the position may include a starting position or an ending position, and may also include both a starting position and a ending position.
- the resource allocation unit is instructed to perform the indication, and the number of the logical resources included in the resource allocation unit can be flexibly set, thereby realizing different granularity according to different bandwidths, different resources, and different resource allocations.
- the problem of insufficient scheduling flexibility in related technologies is solved.
- the M resource allocation units may be divided into S l 5 S 2 , , S K ⁇ groups, each group having Id, K 2 , , ⁇ ⁇ resource allocation units, 1 ⁇ ⁇ ⁇ ⁇ .
- the resource allocation unit is an intermediate link, it can also be omitted, and the L logical resource units are directly divided into groups, and the number of logical resource units in each group is Li, indicated by binary bits, each A binary bit indicates one or more logical resource units.
- the partial bits of the indication information are used to indicate the group in which the logical resource unit allocated for the terminal is located, and all or part of the bits other than the indication message are used to indicate the logical resource allocated to the terminal in the group. unit.
- at least 2 bits Bit i and Bit j are present in all or part of the bits except the bits of the group in which the logical unit allocated by the terminal is indicated, and the logical resources indicated by Bit i and Bit j are present.
- the number of cells is Ni and NJ, respectively, and Ni is not equal to Nj.
- the partial bits of the message are used to indicate the group and/or the indication type in which the resource allocation unit allocated for the terminal is located, and all or part of the bits in the indication message except the part of the bits are used to indicate in the group allocated for the terminal.
- the resource allocation unit assigned to the terminal That is, some of the bits of the indication information indicate the group in which the allocated resource is located, and the remaining bits indicate the number and/or location of the resources.
- all or part of the bits in the indication information are indicated as a resource allocation unit allocated by the terminal in a Bitmap manner, and one bit in the Bitmap Bitmap may indicate a resource allocation unit or a logical resource unit.
- the intersection of the two groups means that at least one of the same resource allocation units exists in the two groups, for example, i ⁇ j exists, where l ⁇ i ⁇ j ⁇ K, there is at least one identical resource allocation unit or logical resource unit in Si and Sj; or, any two groups do not intersect, wherein two groups do not intersect, and there is no identical one in any two groups
- a resource allocation unit or a logical resource unit for example, for any i ⁇ j, l ⁇ i ⁇ j ⁇ K, Si and Sj do not have the same resource allocation unit or logical resource unit.
- a base station is also provided in the embodiment, and FIG.
- FIG. 3 is a structural block diagram of a base station according to an embodiment of the present invention.
- the base station is used to implement the foregoing embodiment, and has not been described again.
- the module facing the base station will be described.
- the base station includes: a first allocation module 32 and a sending module 36.
- the following modules are respectively described.
- the sending module 36 is connected to the first allocating module 32, and configured to send indication information to the terminal, where The indication information is used to indicate the resources allocated by the base station to the terminal in the M resource allocation units.
- FIG. 4 is a block diagram of a preferred structure of the base station according to the embodiment of the present invention. As shown in FIG.
- the base station further includes:
- the foregoing L logical resource units may be sub-band based resource units, where one sub-band may include one or more consecutive resource units.
- the foregoing indication information may be a fixed binary bit (for example, 11 bits, which is exemplified by 11 bits in the following preferred embodiment), or the number of bits included in the indication information may be determined by using system bandwidth.
- a 10 MHz system uses N bits
- 20 MHz uses N+1 bits
- a 5 MHz system uses N-1 bits.
- FIG. 5 is a 5 MHz bandwidth system according to a preferred embodiment of the present invention.
- the sub-band includes four sub-bands (Subbands), that is, 16 consecutive logical resource units (CLRUs), wherein one sub-band is four logical resource units in which the sub-carriers are completely continuous.
- Subbands sub-bands
- CLRUs logical resource units
- FIG. 6 is a resource of a 5 MHz bandwidth system according to a preferred embodiment 1 of the embodiment of the present invention. As shown in FIG. 6, the number of bits indicating the resource index is 11 bits, and 11 bits are taken as an example here, and are not limited thereto.
- 16 consecutive logics among 4 sub-bands Resource unit indexed as [SLRU., SLRUi, SLRU 2 , SLRU 3 , SLRU 4 , SLRUs, SLRUe, SLRU 7 , SLRUs, SLRU 9 , SLRUio, SLRUn, SLRU 12 , SLRU 13 , SLRU M , SLRU15]
- Mo includes [SLRU.
- FIG. 7 is a second schematic diagram of resource element index coding and indication of a 5 MHz bandwidth system according to a preferred embodiment 1 of the present invention. As shown in FIG. 7, the number of bits indicating the resource index is still 11 bits.
- the index of 12 consecutive logical resource units is [SLRU 0 , SLRUi, SLRU 2 , SLRU 3 , SLRU 4 , SLRU 5 , SLRU 6 , SLRU 7 , SLRU 8 , SLRU 9 , SLRUio , SLRUn] , which will be 12 consecutive
- Bit O indicates the source allocation unit M 0
- bit 8 indicates the resource allocation unit M 8 . If 11 bits are [000, 0001, 0111], the resource allocation size is 4 consecutive logical resource units, and the location is resource allocation. Unit M.
- Mi, M 2 and resource allocation unit M 4 are allocated, that is, consecutive logical resource units [SLRUo, SLRUi, SLRU 2 , SLRU 3 , SLRU 6 ] are allocated.
- the resource indication information is all 11 bits, but only 9 bits are used, and the rest are reserved bits.
- two resource allocation units including two consecutive logical resource units can be reduced, and two resource allocation units including one consecutive 1 resource unit are added, thereby increasing the flexibility of resource indication. But it will complicate the coding and indication methods, each with its own advantages and disadvantages.
- Alternative Embodiment 2 Based on the preferred embodiment 1, different schemes can be evolved.
- FIG. 8 is a preferred embodiment according to an embodiment of the present invention. Schematic diagram of resource element index coding and indication of a 5 MHz bandwidth system of 2, as shown in FIG.
- bit 0 means A resource allocation unit M is shown.
- bit 8 indicates the resource allocation unit M 8 . If 11 bits are [010, 0000, 0010], it means that the size of resources allocated for four consecutive logical resource units, the resource allocation unit Mi and a resource allocation unit M 9 is allocated to, i.e.
- FIG. 9 is a schematic diagram of resource element index coding and indication of a 5 MHz bandwidth system according to a preferred embodiment 2 of the embodiment of the present invention.
- Bit 0 indicates the resource allocation unit MO
- bit 8 indicates the resource allocation unit M 8 . If 11 bits are [000, 0001, 0111], it indicates that the resource allocation size is 5 consecutive resource units, and the location is the resource allocation unit M.
- M, M 2 and resource allocation unit M4 are allocated, that is, consecutive logical resource units [SLRU 0 , SLRUi , SLRU 2 , SLRU 3 , SLRU 5 , SLRU 6 ] are allocated.
- This embodiment is a case where ⁇ >2.
- the same 16 consecutive logical resource units which also indicate that the number of bits of the resource index is 11 bits, adopts a resource coding and indication method of ⁇ >2, and the resource index coding and indication method may be as follows.
- FIG. 10 is a first schematic diagram of resource element index coding and indication of a 5 MHz bandwidth system according to a preferred embodiment 3 of the embodiment of the present invention.
- Mi includes [SLRUi].
- the remaining bits are used to indicate resource allocation.
- Bit i ( 0 ⁇ i ⁇ 9 ) is used to indicate the resource allocation unit Mi
- Mi shows that it has not been assigned.
- bit 0 indicates the resource allocation unit M.
- Bit 8 indicates the resource allocation unit M8.
- FIG. 11 is a schematic diagram of resource element index coding and indication of a 5 MHz bandwidth system according to a preferred embodiment 3 of the embodiment of the present invention, as shown in FIG.
- Logical resource unit with index [SLRUo, SLRU b SLRU 2 , SLRU 3 , SLRU 4 , SLRU5, SLRU 6 , SLRU 7 , SLRUg, SLRUg, SLRUio, SLRUn, SLRU12, SLRU13, SLRU14, SLRUi 5] , will be 16
- M corpse MfMfMfMfMkM ⁇ Mifl, M. Includes [SLRU. , SLRUi] , Mi includes [SLRU 2 ], M 2 includes [SLRU 3 ], M 3 includes [SLRU4, SLRU 5 ], M 4 includes [SLRU 6 ], M 5 includes [SLRU 7 ], and M 6 includes [SLRU] S , SLRUg], M 7 includes [SLRU 10 ], M 8 includes [SLRU U ], M 9 includes [SLRU 12 , SLRU 13 ], M 1 () includes [SLRU14], and M u includes [SLRUi 5 ].
- 11 resource allocation units are divided into two groups, group 1 has Kf lO resource allocation units [M.
- Embodiment 4 Based on Embodiments 1, 2 and 3, different combinations can be evolved.
- the same 16 consecutive logical resource units also indicate that the number of bits of the resource index is 11 bits
- the resource index encoding and indication method may be as follows. 13 is a schematic diagram of resource element index coding and indication of a 5 MHz bandwidth system according to a preferred embodiment 4 of the embodiment of the present invention. As shown in FIG. 13, two bits of 11-bit information, for example, Bit 10 and Bit 9 Used to indicate the resource index encoding mode used.
- the allocation unit] is not assigned. For example, bit O indicates that the resource is divided into S units M 0 , and bit 7 indicates that the resource is divided into S units M 7 .
- the unit [SLRU 2 , SL U 3 , SLRU 6 , SL U7] has been separated.
- the resource allocation unit is indicated by binary bits, and the logical resource unit is determined by the allocation unit. In the method description, the resource allocation unit is an intermediate link, which can be omitted.
- the L logical resource units are directly divided into K groups, and the number of logical resource units in each group is indicated by binary bits, and each binary bit indicates One or more logical resource units. As shown in FIG. 6 and FIG.
- the resource index encoding and indication method is shown in FIGS. 14 and 15.
- Others are similar to the above embodiments 1 to 4 and will not be described again.
- the method in the above embodiment can be described not only in a table but also in a graph, a tree, a formula, and a combination thereof.
- the foregoing embodiments are not limited to a specific system bandwidth, and various methods in the foregoing embodiments may be used in combination according to the system bandwidth size and/or the number of subbands or logical resource units that need to be indicated, for example, for other non-
- a system with a regular bandwidth can be extended or reduced to a system equivalent to a standard bandwidth by changing the subcarrier spacing or sampling rate, or by Tone Dropping technology. By such expansion or reduction, the irregular system can be considered.
- the resource bandwidth belongs to the same type of bandwidth as a standard bandwidth. The system at this time The resource allocation is based on the corresponding standard bandwidth system.
- the computing device may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
- the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps are fabricated as a single integrated circuit module.
- the invention is not limited to any specific combination of hardware and software.
- the above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.
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JP2012546327A JP5600753B2 (ja) | 2009-12-28 | 2010-11-11 | 無線通信システムにおけるリソースインテックスのコーディング方法及び基地局 |
US13/518,911 US20120263132A1 (en) | 2009-12-28 | 2010-11-11 | Method for encoding resource indexes in wireless communication system, and base station |
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CN200910216897.0A CN102111878B (zh) | 2009-12-28 | 2009-12-28 | 无线通信系统中资源索引编码方法及基站 |
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WO2011010433A1 (ja) * | 2009-07-24 | 2011-01-27 | パナソニック株式会社 | 無線通信装置及び無線通信方法 |
WO2011024474A1 (ja) * | 2009-08-28 | 2011-03-03 | パナソニック株式会社 | 無線通信装置及び応答制御方法 |
KR101108957B1 (ko) * | 2009-11-16 | 2012-02-09 | 엘지전자 주식회사 | 광대역 무선 접속 시스템에서의 그룹 자원 할당 방법 |
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2009
- 2009-12-28 CN CN200910216897.0A patent/CN102111878B/zh active Active
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2010
- 2010-11-11 US US13/518,911 patent/US20120263132A1/en not_active Abandoned
- 2010-11-11 WO PCT/CN2010/078654 patent/WO2011079653A1/zh active Application Filing
- 2010-11-11 JP JP2012546327A patent/JP5600753B2/ja not_active Expired - Fee Related
- 2010-11-11 KR KR1020127018984A patent/KR20120109564A/ko not_active Application Discontinuation
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CN101064927A (zh) * | 2006-04-27 | 2007-10-31 | 北京三星通信技术研究有限公司 | 无线通信系统中指示信道资源分配的设备和方法 |
WO2008084859A1 (ja) * | 2007-01-12 | 2008-07-17 | Panasonic Corporation | 無線通信基地局装置および無線通信方法 |
CN101365187A (zh) * | 2007-08-09 | 2009-02-11 | 华为技术有限公司 | 一种实现上行资源指示的方法、基站和用户终端 |
CN101521849A (zh) * | 2008-02-25 | 2009-09-02 | 上海华为技术有限公司 | 指配资源的方法、系统及装置 |
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US20120263132A1 (en) | 2012-10-18 |
CN102111878B (zh) | 2014-12-10 |
CN102111878A (zh) | 2011-06-29 |
JP5600753B2 (ja) | 2014-10-01 |
JP2013516125A (ja) | 2013-05-09 |
KR20120109564A (ko) | 2012-10-08 |
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