PDCCH相关DCI格式说明

1 DCI信息

1.1 格式0

表1 格式0的内容

格式0： 用于传输UL-SCH时序安排的信令 内容 FLAG FOR FORMAT0/FORMAT1A DIFFERENTIATION FREQUENCY HOPPING FLAG RESOURCE BLOCK ASSIGNMENT AND HOPPING RESOURCE ALLOCATION 长度 1BIT (0: FORMAT0；1: FORMAT1A) 1 BIT (1:跳频；0:不跳频) ULUL(NRB1)/2)log2(NRBBITS MODULATION VERSION AND CODING SCHEME AND REDUNDANCY 5 BITS 1 BIT 2 BITS 3 BITS 2 BITS（FDD不存在） 2 BITS（FDD不存在） 1 BIT NEW DATA INDICATOR TPC COMMAND FOR SCHEDULED PUSCH CYCLIC SHIFT FOR DM RS UL INDEX（TDD模式上下行配置0） DOWNLINK ASSIGNMENT INDEX（DAI） （TDD模式上下行配置1~6） CQI REQUEST 其中支持PUSCH跳频模式下： ~(i)的具体值；NUL_hop个MSB比特用来得到资源分配参数nPRBlog(N2ULRBUL(NRB1)/2)NUL_hop个比特用来描述在上行子帧的第一个时隙中

的资源分配参数。 在PUSCH非跳频模式下：

ULUL- log2(NRB(NRB1)/2)个比特用来描述在上行子帧的资源分配参数。

协议中规定Format0的长度小于Format1A（包括任何添加bit）的时候，应在有效载荷的后面补零，使其等长。

1.2 格式1

表2 格式1的内容

格式1：用于一个PDSCH码字的时序安排 内容 长度 1 BIT 0指示为TYPE0；1指示为RESOURCE ALLOCATION HEADER(RESOURCE ALLOCATION TYPE0/TYPE1) TYPE1如果下行带宽小于或等于10PRBS，没有资源分配头域，资源分配方式默认为TYPE0。 TYPE0 PROVIDE THE RESOURCE ALLOCATION INDICATE THE SELECTED RESOURCE DL/PNRBBITS RESOURCE BLOCK ASSIGNMENT TYPE1 BLOCKS SUBSET INDICATES A SHIFT OF THE RESOURCE ALLCOTION SPAN log2P BITS 1 BIT PROVIDE THE RESOURCE ALLOCATION NDLRB/Plog2P1 BITS MODULATION AND CODING SCHEME HARQ PROCESS NUMBER NEW DATA INDICATOR REDUNDANCY VERSION TPC COMMAND FOR PUCCH DL ASSIGNMENT INDEX（TDD模式所有配置，应用于上下行配置1~6） 5 BITS 3 BITS(FDD),4 BITS(TDD) 1 BIT 2 BITS 2 BITS 2 BITS（FDD不存在） 其中，P取决与下行资源块数，如下表所示 RBG SIZE (P) 1 2 3 4 SYSTEM BANDWIDTH DLNRB 10 11 - 26 27 - - 110 如果format 1的信息bit数为下表中任一数，则在format 1后附加一个或多个0bit使得format 1的信息bit数不为下表中任一数，且不等于format 0/1A的信息bit数。 表 3 Ambiguous Sizes of Information Bits

{12, 14, 16 ,20, 24, 26, 32, 40, 44, 56} 1.3 格式1A

表4 格式1A的内容

格式1A：用于紧凑PDSCH一码字时序安排 内容 长度

FLAG FOR FORMAT0/FORMAT1A DIFFERENTIATION LOCALIZED/DISTRIBUTED VRB ASSIGNMENT FLAG LOCAL VRB RESOURCE ALLOCATION 1 BIT 1BIT DLDL(NRB1)/2) BITS log2(NRBDLNRB50 OR IF THE DCI CRC 1A IS RESOURCE ALLOCATION SCRAMBLED BY DLDL(NRB1)/2) BITS log2(NRBRESOURCE BLOCK ASSIGNMENT RA-RNTI, P-RNTI, OR DISTRIBUTED VRB SI-RNTI INDICATES NgapNgap,1( VALUE 0) OTHER OR 1 BIT NgapNgap,2( VALUE 1) RESOURCE ALLOCATION DLDL(log2(NRB(NRB1)/2)1) BITS MODULATION AND CODING SCHEME HARQ PROCESS NUMBER NEW DATA INDICATOR REDUNDANCY VERSION TPC COMMAND FOR PUCCH DL ASSIGNMENT INDEX（TDD模式所有配置，应用于上下行配置1~6） 5 BITS 3 BITS(FDD),4 BITS(TDD) 1 BIT 2 BITS 2 BITS 2 BITS（FDD不存在） format 1A可能用于由PDCCH激活的随机接入过程，包含如下域： - Localized/Distributed VRB assignment flag – 1 bit（0）； DLDL- Resource block assignment –log2(NRB； (NRB1)/2) bits（全为1）

- Preamble Index – 6 bits

- PRACH Mask Index – 4 bits -其余bit全为0.

- TPC command for PUCCH – 2 bit,

1）如果DCI 1A 的CRC是与RA-RNTI，P-RNTI，或SI-RNTI加扰，则一个bit保留，一个bit指

1A示TBS表的列数NPRB：

1A1A用于指示列数的bit为 0，NPRB= [ 2 ]；否则NPRB= [ 3 ]

2）否则两个bit用于指示TPC命令。 - 新数据指示 – 1 bit

1）如果DCI 1A 的CRC是与RA-RNTI，P-RNTI，或SI-RNTI加扰，

DL若NRB50且L/D VRB分配标志置1，则该 bit指示gap 值：0指示NgapNgap,1；1指示

NgapNgap,2，否则该比特保留。 2）否则该 bit 根据36.321定义。 注意，如果format1A的信息比特数少于format0，则在format1A后附加0，直至其与format0比特数相同。 如果format 1A的信息bit数为表3中任一数，则在format 1A后附加一个0bit。 当 format 1A CRC与RA-RNTI，P-RNTI，或SI-RNTI加扰时，保留以下几个域： - HARQ进程数 - Downlink 分配索引 (仅用于TDD) 1.4 格式1B 表5 格式1B的内容 格式1B：用于带有PRECODING信息的一个码字的PDSCH的紧凑调度 内容 LOCALIZED/DISTRIBUTED VRB ASSIGNMENT FLAG LOCAL VRB RESOURCE ALLOCATION 长度 1BIT DLDL(NRB1)/2) BITS log2(NRBDLDL(NRB1)/2) BITS log2(NRBDLNRB50 RESOURCE ALLOCATION INDICATES RESOURCE BLOCK ASSIGNMENT NgapNgap,1( VALUE DISTRIBUTED VRB 0) OR 1 BIT DLNRB50 NgapNgap,2( VALUE 1) RESOURCE ALLOCATION DLDL(log2(NRB(NRB1)/2)1) BITS MODULATION AND CODING SCHEME 5 BITS

HARQ PROCESS NUMBER NEW DATA INDICATOR REDUNDANCY VERSION TPC COMMAND FOR PUCCH DL ASSIGNMENT INDEX（TDD模式所有配置，应用于上下行配置1~6） TPMI INFORMATION FOR PRECODING PMI CONFIRMATION FOR PRECODING 3 BITS(FDD),4 BITS(TDD) 1 BIT 2 BITS 2 BITS 2 BITS（FDD不存在） BITS数见表6 1 BIT,见表7 TPMI 信息指示使用[36.211]的表6.3.4.2.3-1或6.3.4.2.3-2表中对应单层传输的哪个码书。

表 6 Number of bits for TPMI information Number of antenna ports Number at eNode-B 2 4 of bits 2 4

表7 Content of PMI confirmation Bit field mapped to

index 0 1

Message Precoding according to the indicated TPMI in the TPMI information field Precoding according to the latest PMI report on PUSCH using the precoder(s) indicated by the reported PMI(s) 如果format 1B的信息bit数为表3中任一数，则在format 1B后附加一个0bit。

1.5 格式1C

若DCI 1C用于非常紧凑的DL-SCH传输 表8 格式1C的内容 格式1C：用于非常紧凑的DL-SCH传输 内容 GAP VALUE DLNRB50, NO BIT FOR GAP 长度 1BIT 0:NgapINDICATION Ngap,11:NgapNgap,2 RESOURCE BLOCK ASSIGNMENT TRANSPORT BLOCK SIZE INDEX DLstepDLsteplog2(NVRB,gap1/NRB(NVRB,gap1/NRB1)/2 BITS 5 BITS DLstepare defined in [36.211] and NNgapand NVRB is defined in [36.213]. RB,gap1若DCI 1C用于通知UE MCCH变更

Information for MCCH change notification 8bit

Reserved information bits 使得用于通知UE MCCH变更的DCI 1C与用于非常紧凑的DL-SCH传输的DCI 1C等长。

1.6 格式1D

表9 格式1D的内容

格式1D：用于带有PRECODING和功率偏移信息的一个码字的PDSCH的紧凑调度 内容 LOCALIZED/DISTRIBUTED VRB ASSIGNMENT FLAG LOCAL VRB RESOURCE ALLOCATION 长度 1BIT DLDL(NRB1)/2) BITS log2(NRBDLDL(NRB1)/2) BITS log2(NRBDLNRB50 RESOURCE ALLOCATION INDICATES RESOURCE BLOCK ASSIGNMENT NgapNgap,1( VALUE DISTRIBUTED VRB 0) OR 1 BIT DLNRB50 NgapNgap,2( VALUE 1) RESOURCE ALLOCATION DLDL(log2(NRB(NRB1)/2)1) BITS MODULATION AND CODING SCHEME HARQ PROCESS NUMBER NEW DATA INDICATOR REDUNDANCY VERSION TPC COMMAND FOR PUCCH DL ASSIGNMENT INDEX（TDD模式所有配置，应用于上下行配置1~6） TPMI INFORMATION FOR PRECODING DOWNLINK POWER OFFSET 5 BITS 3 BITS(FDD),4 BITS(TDD) 1 BIT 2 BITS 2 BITS 2 BITS（FDD不存在） BITS数见表10 1 BIT TPMI 信息指示使用[36.211]的表6.3.4.2.3-1或6.3.4.2.3-2表中对应单层传输的哪个码书。

表10 Number of bits for TPMI information Number of antenna ports at eNode-B 2 4 Numbe of bits 2 4 如果format 1D的信息bit数为表3中任一数，则在format 1D后附加一个0bit。

1.7 格式2

表11 格式2的内容 内容 长度 1 BIT 0指示为RESOURCE ALLOCATION HEADER(RESOURCE ALLOCATION TYPE0/TYPE1) TYPE1TYPE0；1指示为如果下行带宽小于或等于10PRBS，没有资源分配头域，资源分配方式默认为TYPE0。 TYPE0 PROVIDE THE RESOURCE ALLOCATION INDICATE THE SELECTED RESOURCE BLOCKS DL/PNRBBITS RESOURCE BLOCK ASSIGNMENT TYPE1 SUBSET INDICATES A SHIFT OF THE RESOURCE ALLCOTION SPAN log2P BITS 1 BIT PROVIDE THE RESOURCE ALLOCATION NDLRB/Plog2P1 BITS TPC COMMAND FOR PUCCH DL ASSIGNMENT INDEX（TDD模式所有配置，应用于上下行配置1~6） HARQ PROCESS NUMBER TRANSPORT BLOCK TO CODEWORD SWAP FLAG FOR MODULATION AND CODING SCHEME THE FIRST 2 BITS 2 BITS (FDD不存在) 3 BITS(FDD),4 BITS(TDD) 1 BIT 5 BITS 1 BIT 2 BITS 5 BITS 1 BIT 2 BITS 见表15和表16 TRANSPORT BLOCK NEW DATA INDICATOR REDUNDANCY VERSION MODULATION AND CODING SCHEME NEW DATA INDICATOR REDUNDANCY VERSION FOR THE SECOND TRANSPORT BLOCK PRECODING INFORMATION

如果两个传输块都可用，传输块到码字的映射由表12规定。 在只有一个传输块可用的情况如[36.213]第7.1.7.2节所述，传输块到码字的swap flag预留，传输块到码字的映射由表13规定。

表12 Transport block to codeword mapping

(two transport blocks enabled)

transport block to codeword swap flag value 0 1 codeword 1 (enabled) codeword 2 (enabled) transport block 1 transport block 2 transport block 2 transport block 1

表13 Transport block to codeword mapping

(one transport block enabled) transport block 1 transport block 2 enabled disabled disabled enabled codeword 1 (enabled) transport block 1 transport block 2 codeword 2 (disabled) - -

Precoding信息域的表示依赖于对应表15和表16的可用码字数。 TPMI 指示使用 Table 6.3.4.2.3-1 or Table 6.3.4.2.3-2 of [36.211]中哪个码书。对于单码字，如果先前的传输块在闭环空分复用模式下通过两层传输，则表16中的索引号18到34只支持对应HARQ处理重传。 如果format 2的信息bit数为表3中任一数，则在format 2后附加一个0bit。 表15和表16中某些内容用于指示eNode-B采用了对应UE上报的PMI的precoding。在这种情况下，子帧n.相应RB(s)的precoding权对应UE在PUSCH中最后反馈的PMI(s) ，而不是n-4子帧或其前面子帧的PUCCH反馈值。 表14 Number of bits for precoding information Number of antenna ports at eNode-B 2 4 Number of bits for precoding information 3 6 表15: Content of precoding information field for 2 antenna ports One codeword: Codeword 1 enabled, Codeword 2 disabled Bit field mapped to index Message Bit field mapped to index 2 layers: Precoding corresponding to precoder 0 2 layers: Transmit diversity 0 matrix Message Two codewords: Codeword 1 enabled, Codeword 2 enabled 111211 2 layers: Precoding 1 layer: Precoding corresponding to precoding vector 1 corresponding to precoder 1 matrix 11T/2 1112jj 2 layers: Precoding according to 1 layer: Precoding corresponding to precoder vector 2 the latest PMI report on 2 PUSCH, using the precoder(s) indicated by the reported PMI(s) 11/2 T

1 layer: Precoding corresponding to precoder vector 3 1jT/1T2 3 reserved 1 layer: Precoding corresponding to precoder vector 4 j/2 4 reserved 1 layer:Precoding according to the latest PMI report on PUSCH, using the precoder(s) indicated by the 5 reported PMI(s),if RI=2 was reported, using 1st column multiplied by 5 reserved 2of all precoders implied by the reported PMI(s) 1 layer:Precoding according to the latest PMI report on PUSCH, using the precoder(s) indicated by the 6 reported PMI(s),if RI=2 was reported, using 2nd column multiplied by 6 reserved 2of all precoders implied 7 reserved by the reported PMI(s) 7 reserved 表 16 Content of precoding information field for 4 antenna ports One codeword: Codeword 1 enabled, Codeword 2 disabled Bit field mapped to index 0 1 2 4 layers: Transmit diversity 1 layer: TPMI=0 1 layer: TPMI=1 Message Bit field mapped to index 0 1 2 layers: TPMI=0 2 layers: TPMI=1 Message Two codewords: Codeword 1 enabled, Codeword 2 enabled  15 16  2 layers: TPMI=15 2 layers: Precoding according to the latest PMI report on PUSCH using the precoder(s) indicated by the reported PMI(s)  16  1 layer: TPMI=15 17 1 layer: Precoding according to the latest PMI report on PUSCH using the precoder(s) indicated by the reported PMI(s) 17 3 layers: TPMI=0 18 2 layers: TPMI=0 18 3 layers: TPMI=1

19 2 layers: TPMI=1  32 33  3 layers: TPMI=15 3 layers: Precoding according to the latest PMI report on PUSCH using the precoder(s) indicated by the reported PMI(s)  33  2 layers: TPMI=15 34 2 layers: Precoding according to the latest PMI report on PUSCH using the precoder(s) indicated by the reported PMI(s) 34 4 layers: TPMI=0 35 – 63 reserved 35 4 layers: TPMI=1  49 50  4 layers: TPMI=15 4 layers: Precoding according to the latest PMI report on PUSCH using the precoder(s) indicated by the reported PMI(s) 51 – 63 Reserved 1.8 格式2A 表17 格式2A的内容 内容 长度 1 BIT 0指示为RESOURCE ALLOCATION HEADER(RESOURCE ALLOCATION TYPE0/TYPE1) TYPE1TYPE0；1指示为如果下行带宽小于或等于10PRBS，没有资源分配头域，资源分配方式默认为TYPE0。 TYPE0 PROVIDE THE RESOURCE ALLOCATION INDICATE THE SELECTED RESOURCE BLOCKS DL/PNRBBITS RESOURCE BLOCK ASSIGNMENT TYPE1 SUBSET INDICATES A SHIFT OF THE RESOURCE ALLCOTION SPAN log2P BITS 1 BIT PROVIDE THE RESOURCE ALLOCATION NDLRB/Plog2P1 BITS TPC COMMAND FOR PUCCH DL ASSIGNMENT INDEX（TDD模式所有配置，应用于上下行配2 BITS 2 BITS(FDD不存在)

置1~6） HARQ PROCESS NUMBER TRANSPORT BLOCK TO CODEWORD SWAP FLAG FOR MODULATION AND CODING SCHEME THE FIRST 3 BITS(FDD),4 BITS(TDD) 1 BIT 5 BITS 1 BIT 2 BITS 5 BITS 1 BIT 2 BITS 见表18 TRANSPORT BLOCK NEW DATA INDICATOR REDUNDANCY VERSION MODULATION AND CODING SCHEME NEW DATA INDICATOR REDUNDANCY VERSION FOR THE SECOND TRANSPORT BLOCK PRECODING INFORMATION 若两个传输块均可用，传输块到码字的映射规定如表12。 在一个传输块不可用时，传输块到码字的swap flag域预留，传输块到码字的映射规定如表13。 precoding 信息域定义见表19。对于单码字，如果先前的传输块在开环空分复用模式下通过两层传输，则表19中的索引号1只支持对应HARQ处理重传。 两天线端口的传输没有precoding信息域。如果两个码字都可用，传输层RI等于2；如果码字2不可用，则使用发射分集。 表18 Number of bits for precoding information Number of antenna ports at eNode-B 2 4 Number of bits for precoding information 0 2 表 19 Content of precoding information field for 4 antenna ports One codeword: Codeword 1 enabled, Codeword 2 disabled Bit field mapped to index 0 1 2 3 Message 4 layers: Transmit diversity 2 layers: precoder cycling with large delay CDD reserved reserved to index 0 1 2 3 Two codewords: Codeword 1 enabled, Codeword 2 enabled Bit field mapped Message 2 layers: precoder cycling with large delay CDD 3 layers: precoder cycling with large delay CDD 4 layers: precoder cycling with large delay CDD reserved 如果format 2A的信息bit数为表3中任一数，则在format 2A后附加一个0bit。

1.9 格式2B

表20 格式2B的内容

内容 长度 1 BIT 0指示为RESOURCE ALLOCATION HEADER(RESOURCE ALLOCATION TYPE0/TYPE1) TYPE1TYPE0；1指示为如果下行带宽小于或等于10PRBS，没有资源分配头域，资源分配方式默认为TYPE0。 TYPE0 PROVIDE THE RESOURCE ALLOCATION INDICATE THE SELECTED RESOURCE BLOCKS DL/PNRBBITS RESOURCE BLOCK ASSIGNMENT TYPE1 SUBSET INDICATES A SHIFT OF THE RESOURCE ALLCOTION SPAN log2P BITS 1 BIT PROVIDE THE RESOURCE ALLOCATION NDLRB/Plog2P1 BITS TPC COMMAND FOR PUCCH DL ASSIGNMENT INDEX（TDD模式所有配置，应用于上下行配置1~6） HARQ PROCESS NUMBER SCRAMBLING IDENTITY FOR MODULATION AND CODING SCHEME THE FIRST 2 BITS 2 BITS(FDD不存在) 3 BITS(FDD),4 BITS(TDD) 1 BIT 5 BITS 1 BIT 2 BITS 5 BITS 1 BIT 2 BITS TRANSPORT BLOCK NEW DATA INDICATOR REDUNDANCY VERSION MODULATION AND CODING SCHEME NEW DATA INDICATOR REDUNDANCY VERSION FOR THE SECOND TRANSPORT BLOCK 如果两个传输块均使能，则传输层数等于2，传输块1映射到码流0上，传输块2映射到码流1上，天线端口7和8使用空间复用。 如果一个传输块不使能，则传输层数等于1，传输块到码流的映射关系由表13得到，使用哪个天线端口传输数据由下表得到。 表21 Antenna port for single-antenna port transmission (one transport block disabled) New data indicator of the disabled transport block Antenna port 0 1 7 8

如果format 2B的信息bit数为表3中任一数，则在format 2B后附加一个0bit。

1.10 格式3

表22 格式3的内容

格式3：用于传输2BIT功率调整的PUCCH和PUSCH的TPC命令 内容 TPC COMMAND FOR USER 1, USER 2,…, USER N 长度 2 BIT 其中，NLformat 0,，Lformat 0 是format 0 在附加CRC校验码之前的有效载荷大小，包2括附加在format0之后的比特。高层提供参数tpc-Index确定给定UE的TCP命令的索引。如果Lformat 0Lformat 0，就在format3后附加一个0bit。 221.11 格式3A 表23 格式3A的内容 格式3A：用于传输1BIT功率调整的PUCCH和PUSCH的TPC命令 内容 TPC COMMAND FOR USER 1, USER 2,…, USER M 长度 1 BIT 其中MLformat 0，Lformat 0 是format 0 在附加CRC校验码之前的有效载荷大小，包括附加在format0之后的比特。高层提供参数tpc-Index确定给定UE的TCP命令的索引。 1.12 各DCI消息的长度 表24 一个PDCCH的有效载荷（TDD） PDCCH 格式 Length(DCI 0) >= 0 Lenth(DCI 1A) Length(DCI 0) < Lenth(DCI 1A) DLNRB10 有效载荷 ULUL(NRB1)/2)log2(NRB+16 bits Lenth(DCI 1A) DL/P+17 bits NRBDL/P+16 bits NRBDLNRB10 1 Length(DCI 1) = Lenth(DCI 0/1A) Length(DCI 1) = 12, 14, 16 ,20, 24, 26, 32, 40, 44, 56 Length(DCI 1A) >= Lenth(DCI 0) Length(DCI 1A) < Lenth(DCI 0) 长度加1 长度加1 DLDL(NRB1)/2)+18 bits log2(NRB1A Lenth(DCI 0)

Length(DCI 1A) = 12, 14, 16 ,20, 24, 26, 32, 40, 44, 56 长度加1 2端口 4端口 DLDL(NRB1)/2)+20 bits log2(NRB1B DLDL(NRB1)/2)+22 bits log2(NRBLength(DCI 1B) = 12, 14, 16 ,20, 24, 26, 32, 40, 44, 56 长度加1 DLstepDLstep/N(N/Nlog2(NVRB,gap1RBVRB,gap1RB1)/2+5 N1C DLRB50 bits else DLstepDLsteplog2(NVRB,gap1/NRB(NVRB,gap1/NRB1)/2+6 bits 2端口 4端口 DLDL(NRB1)/2)+20 bits log2(NRBDLDL(NRB1)/2)+22 bits log2(NRB1D Length(DCI 1D) = 12, 14, 16 ,20, 24, 26, 32, 40, 44, 56 DLNRB10，2端口 长度加1 DL/P+29 bits NRBDL/P+32 bits NRBDLNRB10，4端口 2 DLNRB10，2端口 DL/P+28 bits NRBDL/P+31 bits NRBDLNRB10，4端口 Length(DCI 2) = 12, 14, 16 ,20, 24, 26, 32, 40, 44, 56 DLNRB10，2端口 长度加1 DL/P+26 bits NRBDLNRB10，4端口 DL/P+28 bits NRB2A DLNRB10，2端口 DL/P+25 bits NRBDLNRB10，4端口 DL/P+27 bits NRB

Length(DCI 2A) = 12, 14, 16 ,20, 24, 26, 32, 40, 44, 56 DLNRB10 长度加1 DL/P+26 bits NRB2B DLNRB10 DL/P+25 bits NRBLength(DCI 2B) = 12, 14, 16 ,20, 24, 26, 32, 40, 44, 56 3 3A 长度加1 Lenth(DCI 0) Lenth(DCI 0) 表25 一个PDCCH的有效载荷（FDD） PDCCH 格式 Length(DCI 0) >= 0 Lenth(DCI 1A) Length(DCI 0) < Lenth(DCI 1A) DLNRB10 有效载荷 ULUL(NRB1)/2)log2(NRB+14 bits Lenth(DCI 1A) DL/P+14 bits NRBDLNRB10 DL/P+13 bits NRB1 Length(DCI 1) = Lenth(DCI 0/1A) Length(DCI 1) = 12, 14, 16 ,20, 24, 26, 32, 40, 44, 56 Length(DCI 1A) >= Lenth(DCI 0) Length(DCI 1A) < 长度加1 长度加1或者更多直至Length(DCI 1)不属于上述集合 DLDL(NRB1)/2)+15 bits log2(NRB1A Lenth(DCI 0) Length(DCI 1A) = 12, 14, 16 ,20, 24, 26, 32, 40, 44, 56 Lenth(DCI 0) 长度加1 2端口 4端口 DLDL(NRB1)/2)+17 bits log2(NRB1B DLDL(NRB1)/2)+19 bits log2(NRBLength(DCI 1B) = 12, 14, 16 ,20, 24, 26, 32, 40, 44, 56 1C DLNRB50 长度加1 DLstepDLsteplog2(NVRB,gap1/NRB(NVRB,gap1/NRB1)/2+5

bits else DLstepDLsteplog2(NVRB,gap1/NRB(NVRB,gap1/NRB1)/2+6 bits 2端口 4端口 DLDL(NRB1)/2)+17 bits log2(NRBDLDL(NRB1)/2)+19 bits log2(NRB1D Length(DCI 1D) = 12, 14, 16 ,20, 24, 26, 32, 40, 44, 56 DLNRB10，2端口 长度加1 DL/P+26 bits NRBDL/P+29 bits NRBDLNRB10，4端口 2 DLNRB10，2端口 DL/P+25 bits NRBDL/P+28 bits NRBDLNRB10，4端口 Length(DCI 2) = 12, 14, 16 ,20, 24, 26, 32, 40, 44, 56 DLNRB10，2端口 长度加1 DL/P+23 bits NRBDLNRB10，4端口 DL/P+25 bits NRB2A DLNRB10，2端口 DL/P+22 bits NRBDLNRB10，4端口 DL/P+24 bits NRBLength(DCI 2A) = 12, 14, 16 ,20, 24, 26, 32, 40, 44, 56 DLNRB10 长度加1 DL/P+23 bits NRB2B DLNRB10 DL/P+22 bits NRBLength(DCI 2B) = 12, 14, 16 ,20, 24, 26, 32, 40, 44, 56 3 长度加1 Lenth(DCI 0)

3A Lenth(DCI 0) 1.13 各DCI的应用

表26 PDCCH and PDSCH configured by SI-RNTI

DCI format DCI format 1C DCI format 1A Common If the number of PBCH antenna ports is one, Single-antenna port, port 0 is used, otherwise Transmit diversity Common If the number of PBCH antenna ports is one, Single-antenna port, port 0 is used, otherwise Transmit diversity. Search Space Transmission scheme of PDSCH corresponding to PDCCH 表27 PDCCH and PDSCH configured by P-RNTI DCI format DCI format 1C DCI format 1A Common Common If the number of PBCH antenna ports is one, Single-antenna port, port 0 is used (see subclause 7.1.1), otherwise Transmit diversity (see subclause 7.1.2) If the number of PBCH antenna ports is one, Single-antenna port, port 0 is used (see subclause 7.1.1), otherwise Transmit diversity (see subclause 7.1.2) Search Space Transmission scheme of PDSCH corresponding to PDCCH 表28 PDCCH and PDSCH configured by RA-RNTI DCI format DCI format 1C DCI format 1A Common Common If the number of PBCH antenna ports is one, Single-antenna port, port 0 is used (see subclause 7.1.1), otherwise Transmit diversity (see subclause 7.1.2) If the number of PBCH antenna ports is one, Single-antenna port, port 0 is used (see subclause 7.1.1), otherwise Transmit diversity (see subclause 7.1.2) Search Space Transmission scheme of PDSCH corresponding to PDCCH

表29 PDCCH and PDSCH configured by C-RNTI

Transmission mode Mode 1 DCI format 1A Common and UE specific by C-RNTI DCI format 1 Mode 2 DCI format 1A DCI format 1 Mode 3 DCI format 1A DCI format 2A UE specific by C-RNTI Common and UE specific by C-RNTI UE specific by C-RNTI Common and UE specific by C-RNTI UE specific by C-RNTI DCI format Search Space Transmission scheme of PDSCH corresponding to PDCCH Single-antenna port, port 0 (see subclause 7.1.1) Single-antenna port, port 0 (see subclause 7.1.1) Transmit diversity (see subclause 7.1.2) Transmit diversity (see subclause 7.1.2) Transmit diversity (see subclause 7.1.2) Large delay CDD (see subclause 7.1.3) or Transmit diversity (see subclause 7.1.2) Mode 4 DCI format 1A DCI format 2 Common and UE specific by C-RNTI UE specific by C-RNTI Transmit diversity (see subclause 7.1.2) Closed-loop spatial multiplexing (see subclause 7.1.4)or Transmit diversity (see subclause 7.1.2) Mode 5 DCI format 1A DCI format 1D Mode 6 DCI format 1A DCI format 1B Common and UE specific by C-RNTI UE specific by C-RNTI Common and UE specific by C-RNTI UE specific by C-RNTI Transmit diversity (see subclause 7.1.2) Multi-user MIMO (see subclause 7.1.5) Transmit diversity (see subclause 7.1.2) Closed-loop spatial multiplexing (see subclause 7.1.4) using a single transmission layer Mode 7 DCI format 1A Common and UE specific by C-RNTI If the number of PBCH antenna ports is one, Single-antenna port, port 0 is used (see subclause 7.1.1), otherwise Transmit diversity (see subclause 7.1.2) DCI format 1 Mode 8 DCI format 1A UE specific by C-RNTI Common and UE specific by C-RNTI Single-antenna port; port 5 (see subclause 7.1.1) If the number of PBCH antenna ports is one, Single-antenna port, port 0 is used (see subclause 7.1.1), otherwise Transmit diversity (see subclause 7.1.2)

DCI format 2B UE specific by C-RNTI Dual layer transmission; port 7 and 8 (see subclause 7.1.5A) or single-antenna port; port 7 or 8 (see subclause 7.1.1) 表30 PDCCH and PDSCH configured by SPS C-RNTI

Transmission mode Mode 1 DCI format 1A Common and UE specific by C-RNTI DCI format 1 Mode 2 DCI format 1A DCI format 1 Mode 3 DCI format 1A DCI format 2A Mode 4 DCI format 1A DCI format 2 UE specific by C-RNTI Common and UE specific by C-RNTI UE specific by C-RNTI Common and UE specific by C-RNTI UE specific by C-RNTI Common and UE specific by C-RNTI UE specific by C-RNTI DCI format Search Space Transmission scheme of PDSCH corresponding to PDCCH Single-antenna port, port 0 (see subclause 7.1.1) Single-antenna port, port 0 (see subclause 7.1.1) Transmit diversity (see subclause 7.1.2) Transmit diversity (see subclause 7.1.2) Transmit diversity (see subclause 7.1.2) Transmit diversity (see subclause 7.1.2) Transmit diversity (see subclause 7.1.2) Transmit diversity (see subclause 7.1.2) Mode 5 Mode 6 Mode 7 DCI format 1A DCI format 1A DCI format 1A DCI format 1 Mode 8 DCI format 1A DCI format 2B Common and UE specific by C-RNTI Common and UE specific by C-RNTI Common and UE specific by C-RNTI UE specific by C-RNTI Common and UE specific by C-RNTI UE specific by C-RNTI Transmit diversity (see subclause 7.1.2) Transmit diversity (see subclause 7.1.2) Single-antenna port; port 5 (see subclause 7.1.1) Single-antenna port; port 5 (see subclause 7.1.1) Single-antenna port; port 7(see subclause 7.1.1) Single-antenna port; port 7 or 8 (see subclause 7.1.1)

表31 PDCCH and PDSCH configured by Temporary C-RNTI

DCI format DCI format 1A Search Space Common and UE specific by Temporary C-RNTI DCI format 1 UE specific by Temporary C-RNTI Transmission scheme of PDSCH corresponding to PDCCH If the number of PBCH antenna port is one, Single-antenna port, port 0 is used (see subclause 7.1.1), otherwise Transmit diversity (see subclause 7.1.2) If the number of PBCH antenna port is one, Single-antenna port, port 0 is used (see subclause 7.1.1), otherwise Transmit diversity (see subclause 7.1.2)