Mr Kang
|
|
5G(NR)中的DCI( Downlink Control Information)就是下行控制信息,其中:Format 0_1用于小区的上行PUSCH调度等信息,其中包括载波、UL/SUL等,主要内容如下:
Field (Item) | Bits | Reference | 主要内容 | Identifier for DCI formats | 1 |
|
| Carrier indicator | 0 or 3 |
| 载波指示 0 or 3 | UL/SUL Indicator | 0,1 | 0 - bit for UE not configured with SUL in the cell 1 - bit for UEs configured with SUL in the cell | 0:不配置SUL 1: 配置SUL | Bandwidth part indicator | 0,1,2 | Determined by BandwidthPart-Config in higher layer message and 38.212 - Table 7.3.1.1.2-1 | 高层BWP指示:0,1,2(38.212 - Table 7.3.1.1.2-1) | Frequency domain resource assignment | Variable | Variable with Resource Allocation Type | 频域资源指配 | Time domain resource assignment | 4 | Carries the row index of the items in pusch_allocationList in RRC Number of Bit Length is determined by log(I,2), where I is the number of elements in pusch_allocationList in RRC | 时域资源指配 | Frequency Hopping Flag | 0,1 |
| 跳频指示 | Modulation and coding scheme | 5 | 38.214 - 6.1.4 (See this table) | 调制和编码 | New data indicator | 1 |
| 新数据标识 | Redundancy version | 2 | 0,1,2,3 | 冗余版本 | HARQ process number | 4 |
| HARQ进程 | 1st Downlink assignment index | 1,2 |
| 首个下行指配标识 | 2nd Downlink assignment index | 0,2 |
| 第二个下行指配标识 | TPC command for scheduled PUSCH | 2 |
| PUSCH中的功控命令 | SRS resource indicator | Variable | Determined by RRC Parameter SRS-SetUse | SRS资源指示 | Precoding information and number of layers (TPMI) | 0,2,3,4,5,6 | Determined by ulTxConfig, Number of Antenna ports, PUSCH-tp, ULmaxRank | 预编码和层信息 | Antenna ports | 2,3,4,5 | Determined by PUSCH-tp, DL-DMRS-config-type, DL-DMRS-config-max-len, Rank | 天线端口 | SRS request | 2 | Table 7.3.1.1.2-24 | SRS请求 | CSI request | 0,1,2,3,4,5,6 | Determined by ReportTriggerSize in RRC message. See Configure Aperiodic Trigger section for the details. | CSI请求 | CBG transmission information | 0,2,4,6,8 | Determined by maxCodeBlockGroupPerTransportblock in RRC message | CBG传输信息 | PTRS - DMRS Association | 0,2 | Determined by UL-PTRS-present, PUSCH-tp in RRC Message | PTRS-DMRS信息 | beta_offsetr Indicator | 0,2 | 0 - if uci-on-PUSCH.dynamic = Not Configured 2 - otherwise, see Table 7.3.1.1.2-27 | beta_offsetr 指示 | DMRS Sequence Initialization | 0,1 | 0 - if PUSCH-tp=Disabled 1 - if PUSCH-tp=Enabled | 初始DMRS序列 | UL-SCH Indicator | 1 | 0 - UL-SCH shall not be transmitted on the PUSCH 1 - UL-SCH shall be transmitted on the PUSCH | UL-SCH指示 |
1. Bandwidth part indicator(38.212 v15.3.0 - Table 7.3.1.1.2-1)
Value of BWP indicator field | Bandwidth part | 1 bit | 2 bits | 0 | 0 | First bandwidth part configured by higher layers | 1 | 1 | Second bandwidth part configured by higher layers |
| 10 | Third bandwidth part configured by higher layers |
| 11 | Fourth bandwidth part configured by higher layers |
2. Frequency domain resource assignment
3.Nominal RBG size P(38.214-v15.3.0 Table 6.1.2.2.1-1)
Carrier Bandwidth Part Size | Configuration 1 | Configuration 2 | 1-36 | 2 | 4 | 37-72 | 4 | 8 | 73-144 | 8 | 16 | 145-275 | 16 | 16 |
4. SRS resource indicator (38.212-Table 7.3.1.1.2-24)
SRS-ResourceSet.usage | Bit Length of SRS Resource Indicator | CodeBook | 
| N_SRS is the number of configured SRS resources in the SRS resource set associated with "usage". | NonCodeBook | 
|
|
Value of SRS request field | Triggered aperiodic SRS resource set(s) | 00 | No aperiodic SRS resource set triggered | 01 | SRS resource set(s) configured with higher layer parameter aperiodicSRS-ResourceTrigger set to 1 | 10 | SRS resource set(s) configured with higher layer parameter aperiodicSRS-ResourceTrigger set to 2 | 11 | SRS resource set(s) configured with higher layer parameter aperiodicSRS-ResourceTrigger set to 3 |
5.Precoding information and number of layers
txMode(UL) | Antenna | PUSCH-tp | ULmaxRank | ULCodebookSubset | Bit Length | Table in 38.212 | NonCodeBook |
|
|
|
| 0 |
| CodeBook | 4 ports | Disabled | 2 or 3 or 4 |
| 4 or 5 or 6 | 7.3.1.1.2-2 | CodeBook | 4 ports | Disabled |
|
| 2 or 4 or 5 | 7.3.1.1.2-3 | Enabled | 1 |
| CodeBook | 2 ports |
| 2 |
| 3 or 4 | 7.3.1.1.2-4 | CodeBook | 2 ports |
| 1 |
| 2 or 3 | 7.3.1.1.2-5 |
6.Antenna ports
PUSCH-tp | DMRS-config-type | DMRS-config-max-len | Rank | Bit Lenth | Table in 38.212 | Enabled | 1 | 1 |
| 2 | 7.3.1.1.2-6 | 1 | 2 |
| 4 | 7.3.1.1.2-7 | Disabled | 1 | 1 | 1 | 3 | 7.3.1.1.2-8 | 1 | 1 | 2 | 3 | 7.3.1.1.2-9 | 1 | 1 | 3 | 3 | 7.3.1.1.2-10 | 1 | 1 | 4 | 3 | 7.3.1.1.2-11 | Disabled | 1 | 2 | 1 | 4 | 7.3.1.1.2-12 | 1 | 2 | 2 | 4 | 7.3.1.1.2-13 | 1 | 2 | 3 | 4 | 7.3.1.1.2-14 | 1 | 2 | 4 | 4 | 7.3.1.1.2-15 | Disabled | 2 | 1 | 1 | 4 | 7.3.1.1.2-16 | 2 | 1 | 2 | 4 | 7.3.1.1.2-17 | 2 | 1 | 3 | 4 | 7.3.1.1.2-18 | 2 | 1 | 4 | 4 | 7.3.1.1.2-19 | Disabled | 2 | 2 | 1 | 5 | 7.3.1.1.2-20 | 2 | 2 | 2 | 5 | 7.3.1.1.2-21 | 2 | 2 | 3 | 5 | 7.3.1.1.2-22 | 2 | 2 | 4 | 5 | 7.3.1.1.2-23 |
7. PTRS - DMRS Association
UL-PTRS-present | PUSCH-tp | UL PTRS port | UL-PTRS-ports | Bit Length | Table in 38.212 | OFF | Disabled |
|
| 0 | N/A | ON | Enabled |
|
| 0 | N/A | ON | Disabled |
|
| 0 | N/A | Otherwise | 0 | 1 | 2 | 7.3.1.1.2-25 | 0 | 2 | 2 | 7.3.1.1.2-26 | 1 | 2 | 2 | 7.3.1.1.2-26 |
原文来自:http://www.sharetechnote.com/
扫码关注5G通信官方公众号,免费领取以下5G精品资料
1、回复“YD5GAI”免费领取《中国移动:5G网络AI应用典型场景技术解决方案白皮书》
2、回复“5G6G”免费领取《5G_6G毫米波测试技术白皮书-2022_03-21》
3、回复“YD6G”免费领取《中国移动:6G至简无线接入网白皮书》
4、回复“LTBPS”免费领取《《中国联通5G终端白皮书》》
5、回复“ZGDX”免费领取《中国电信5G NTN技术白皮书》
6、回复“TXSB”免费领取《通信设备安装工程施工工艺图解》
7、回复“YDSL”免费领取《中国移动算力并网白皮书》
8、回复“5GX3”免费领取《 R16 23501-g60 5G的系统架构1》
|
|
|
|
|