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RRC CSI-RS config for 8 and 12 ports

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This commit is contained in:
francescomani
2026-02-20 11:05:43 +01:00
parent b53f4a6e37
commit 7a59f28ae3
2 changed files with 20 additions and 2 deletions
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common/utils/nr/nr_common.h
+1 -1
View File
@@ -87,7 +87,7 @@ static inline const char *rnti_types(nr_rnti_type_t rr)
#define NR_NUMBER_OF_SYMBOLS_PER_SLOT 14
#define NR_NUMBER_OF_SYMBOLS_PER_SLOT_EXTENDED_CP 12
#define NR_MAX_NB_LAYERS 4 // 8
#define NR_MAX_CSI_PORTS 4
#define NR_MAX_CSI_PORTS 12
// Since the IQ samples are represented by SQ15 R+I (see https://en.wikipedia.org/wiki/Q_(number_format)) we need to compensate when
// calcualting signal energy. Instead of shifting each sample right by 15, we can normalize the result in dB scale once its
openair2/LAYER2/NR_MAC_gNB/nr_radio_config.c
+19 -1
View File
@@ -479,8 +479,26 @@ static void config_csirs(const NR_ServingCellConfigCommon_t *servingcellconfigco
resourceMapping.nrofPorts = NR_CSI_RS_ResourceMapping__nrofPorts_p4;
resourceMapping.cdm_Type = NR_CSI_RS_ResourceMapping__cdm_Type_fd_CDM2;
break;
case 8:
resourceMapping.frequencyDomainAllocation.present = NR_CSI_RS_ResourceMapping__frequencyDomainAllocation_PR_other;
resourceMapping.frequencyDomainAllocation.choice.other.buf = calloc(1, sizeof(uint8_t));
resourceMapping.frequencyDomainAllocation.choice.other.size = 1;
resourceMapping.frequencyDomainAllocation.choice.other.bits_unused = 2;
resourceMapping.frequencyDomainAllocation.choice.other.buf[0] = 60;
resourceMapping.nrofPorts = NR_CSI_RS_ResourceMapping__nrofPorts_p8;
resourceMapping.cdm_Type = NR_CSI_RS_ResourceMapping__cdm_Type_fd_CDM2;
break;
case 12:
resourceMapping.frequencyDomainAllocation.present = NR_CSI_RS_ResourceMapping__frequencyDomainAllocation_PR_other;
resourceMapping.frequencyDomainAllocation.choice.other.buf = calloc(1, sizeof(uint8_t));
resourceMapping.frequencyDomainAllocation.choice.other.size = 1;
resourceMapping.frequencyDomainAllocation.choice.other.bits_unused = 2;
resourceMapping.frequencyDomainAllocation.choice.other.buf[0] = 252;
resourceMapping.nrofPorts = NR_CSI_RS_ResourceMapping__nrofPorts_p12;
resourceMapping.cdm_Type = NR_CSI_RS_ResourceMapping__cdm_Type_fd_CDM2;
break;
default:
AssertFatal(1==0,"Number of ports not yet supported\n");
AssertFatal(false, "Number of ports not yet supported\n");
}
resourceMapping.firstOFDMSymbolInTimeDomain = 13; // last symbol of slot
resourceMapping.firstOFDMSymbolInTimeDomain2 = NULL;