NG Toolset开发笔记--5GNR Resource Grid（24）

series #23---continued

（三）DMRS for PDCCH需求分析

PDCCH DMRS序列生成：

PDCCH DMRS资源映射：

Proposed parameters as below：

*nrCoresetPrecoderGranularity: can be {‘sameAsREG-bundle’, ‘allContiguousRBs’}

 

（四）DMRS for PBCH需求分析：

PBCH DMRS序列生成：

 

（五）CSI-RS需求分析：

NZP CSI-RS序列生成：

CSI-RS资源映射：

 

Proposed parameters as below:

NZP CSI-RS configurations:

1. nrNzpCsiRsResourceType: can be {periodic, semi-persistent, aperiodic}
2. nrNzpCsiRsNumAp: can be {p1, p2, p4, p8, p12, p16, p24, p32}
3. nrNzpCsiRsDensity: can be {0.5, 1, 3} in RE/port/PRB
4. nrNzpCsiRsDot5: can be {even, odd}, only applicable when density=0.5
5. nrNzpCsiRsCdmType: can be {noCDM, fd-CDM2, cdm4-FD2-TD2, cdm8-FD2-TD4}
6. nrNzpCsiRsPrbBitmap: bit string, length of which can be {len4, len12, len3, len6} for Row#1/#2/#4/other respectively
7. nrNzpCsiRsL0: as specified by firstOFDMSymbolInTimeDomain
8. nrNzpCsiRsL1: as specified by firstOFDMSymbolInTimeDomain2
9. nrNzpCsiRsStartingPrb: the starting PRB of CSI-RS
10. nrNzpCsiRsNumPrb: number of PRBs for CSI-RS
11. nrNzpCsiRsPeriodicity: periodicity in slots for periodic or semi-persistent CSI-RS
12. nrNzpCsiRsOffset: offset in slots for periodic or semi-persistent CSI-RS

 

ZP CSI-RS configurations:

1. nrZpCsiRsResourceType: can be {periodic, semi-persistent, aperiodic}
2. nrZpCsiRsNumAp: can be {p1, p2, p4, p8, p12, p16, p24, p32}
3. nrZpCsiRsDensity: can be {0.5, 1, 3} in RE/port/PRB
4. nrZpCsiRsDot5: can be {even, odd}, only applicable when density=0.5
5. nrZpCsiRsCdmType: can be {noCDM, fd-CDM2, cdm4-FD2-TD2, cdm8-FD2-TD4}
6. nrZpCsiRsPrbBitmap: bit string, length of which can be {len4, len12, len3, len6} for Row#1/#2/#4/other respectively
7. nrZpCsiRsL0: as specified by firstOFDMSymbolInTimeDomain
8. nrZpCsiRsL1: as specified by firstOFDMSymbolInTimeDomain2
9. nrZpCsiRsStartingPrb: the starting PRB of CSI-RS
10. nrZpCsiRsNumPrb: number of PRBs for CSI-RS
11. nrZpCsiRsPeriodicity: periodicity in slots for periodic or semi-persistent CSI-RS
12. nrZpCsiRsOffset: offset in slots for periodic or semi-persistent CSI-RS

 

5GNR Resource Grid CSI-RS simplification:

*only support periodic NZP/ZP CSI-RS;

*only one NZP/ZP CSI-RS resource per NZP/ZP CSI-RS resource set;

*only one NZP CSI-RS resource set per CSI-ResourceConfig;