diff --git a/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_uci.c b/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_uci.c index b149a67cc0..68d5e58b95 100644 --- a/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_uci.c +++ b/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_uci.c @@ -160,283 +160,263 @@ uint8_t number_of_bits_set (uint8_t buf,uint8_t * max_ri){ } -//!TODO : same function can be written to handle csi_resources -void compute_csi_bitlen(NR_CSI_MeasConfig_t *csi_MeasConfig, NR_UE_info_t *UE_info, int UE_id, module_id_t Mod_idP){ - uint8_t csi_report_id = 0; - uint8_t csi_resourceidx =0; - uint8_t csi_ssb_idx =0; - NR_CSI_ReportConfig__reportQuantity_PR reportQuantity_type; - NR_CSI_ResourceConfigId_t csi_ResourceConfigId; +void compute_rsrp_bitlen(struct NR_CSI_ReportConfig *csi_reportconfig, + uint8_t nb_resources, + nr_csi_report_t *csi_report){ - for (csi_report_id=0; csi_report_id < csi_MeasConfig->csi_ReportConfigToAddModList->list.count; csi_report_id++){ - struct NR_CSI_ReportConfig *csi_reportconfig = csi_MeasConfig->csi_ReportConfigToAddModList->list.array[csi_report_id]; - nr_csi_report_t *csi_report = &UE_info->csi_report_template[UE_id][csi_report_id]; - csi_ResourceConfigId=csi_reportconfig->resourcesForChannelMeasurement; - reportQuantity_type = csi_reportconfig->reportQuantity.present; - csi_report->reportQuantity_type = reportQuantity_type; + if (NR_CSI_ReportConfig__groupBasedBeamReporting_PR_disabled == csi_reportconfig->groupBasedBeamReporting.present) { + if (NULL != csi_reportconfig->groupBasedBeamReporting.choice.disabled->nrofReportedRS) + csi_report->CSI_report_bitlen.nb_ssbri_cri = *(csi_reportconfig->groupBasedBeamReporting.choice.disabled->nrofReportedRS)+1; + else + /*! From Spec 38.331 + * nrofReportedRS + * The number (N) of measured RS resources to be reported per report setting in a non-group-based report. N <= N_max, where N_max is either 2 or 4 depending on UE + * capability. FFS: The signaling mechanism for the gNB to select a subset of N beams for the UE to measure and report. + * When the field is absent the UE applies the value 1 + */ + csi_report->CSI_report_bitlen.nb_ssbri_cri= 1; + } else + csi_report->CSI_report_bitlen.nb_ssbri_cri= 2; - for ( csi_resourceidx = 0; csi_resourceidx < csi_MeasConfig->csi_ResourceConfigToAddModList->list.count; csi_resourceidx++) { - struct NR_CSI_ResourceConfig *csi_resourceconfig = csi_MeasConfig->csi_ResourceConfigToAddModList->list.array[csi_resourceidx]; - if ( csi_resourceconfig->csi_ResourceConfigId != csi_ResourceConfigId) - continue; - else { - uint8_t nb_ssb_resources =0; - //Finding the CSI_RS or SSB Resources - if (NR_CSI_ReportConfig__reportQuantity_PR_cri_RSRP == reportQuantity_type || - NR_CSI_ReportConfig__reportQuantity_PR_ssb_Index_RSRP == reportQuantity_type) { - - if (NR_CSI_ReportConfig__groupBasedBeamReporting_PR_disabled == csi_reportconfig->groupBasedBeamReporting.present) { - if (NULL != csi_reportconfig->groupBasedBeamReporting.choice.disabled->nrofReportedRS) - csi_report->CSI_report_bitlen.nb_ssbri_cri = *(csi_reportconfig->groupBasedBeamReporting.choice.disabled->nrofReportedRS)+1; - else - /*! From Spec 38.331 - * nrofReportedRS - * The number (N) of measured RS resources to be reported per report setting in a non-group-based report. N <= N_max, where N_max is either 2 or 4 depending on UE - * capability. FFS: The signaling mechanism for the gNB to select a subset of N beams for the UE to measure and report. - * When the field is absent the UE applies the value 1 - */ - csi_report->CSI_report_bitlen.nb_ssbri_cri= 1; - }else - csi_report->CSI_report_bitlen.nb_ssbri_cri= 2; - - if (NR_CSI_ReportConfig__reportQuantity_PR_ssb_Index_RSRP == csi_report->reportQuantity_type) { - for ( csi_ssb_idx = 0; csi_ssb_idx < csi_MeasConfig->csi_SSB_ResourceSetToAddModList->list.count; csi_ssb_idx++) { - if (csi_MeasConfig->csi_SSB_ResourceSetToAddModList->list.array[csi_ssb_idx]->csi_SSB_ResourceSetId == - *(csi_resourceconfig->csi_RS_ResourceSetList.choice.nzp_CSI_RS_SSB->csi_SSB_ResourceSetList->list.array[0])){ - - ///We can configure only one SSB resource set from spec 38.331 IE CSI-ResourceConfig - nb_ssb_resources= csi_MeasConfig->csi_SSB_ResourceSetToAddModList->list.array[csi_ssb_idx]->csi_SSB_ResourceList.list.count; - csi_report->SSB_Index_list = csi_MeasConfig->csi_SSB_ResourceSetToAddModList->list.array[csi_ssb_idx]->csi_SSB_ResourceList.list.array; - csi_report->CSI_Index_list = NULL; - break; - } - } - } else /*if (NR_CSI_ReportConfig__reportQuantity_PR_cri_RSRP == UE_info->csi_report_template[UE_id][csi_report_id].reportQuantity_type)*/{ - for ( csi_ssb_idx = 0; csi_ssb_idx < csi_MeasConfig->nzp_CSI_RS_ResourceSetToAddModList->list.count; csi_ssb_idx++) { - if (csi_MeasConfig->nzp_CSI_RS_ResourceSetToAddModList->list.array[csi_ssb_idx]->nzp_CSI_ResourceSetId == - *(csi_resourceconfig->csi_RS_ResourceSetList.choice.nzp_CSI_RS_SSB->nzp_CSI_RS_ResourceSetList->list.array[0])) { - - ///For periodic and semi-persistent CSI Resource Settings, the number of CSI-RS Resource Sets configured is limited to S=1 for spec 38.212 - nb_ssb_resources= csi_MeasConfig->nzp_CSI_RS_ResourceSetToAddModList->list.array[csi_ssb_idx]->nzp_CSI_RS_Resources.list.count; - csi_report->CSI_Index_list = csi_MeasConfig->nzp_CSI_RS_ResourceSetToAddModList->list.array[csi_ssb_idx]->nzp_CSI_RS_Resources.list.array; - csi_report->SSB_Index_list = NULL; - break; - } - } - } - - if (nb_ssb_resources) { - csi_report->CSI_report_bitlen.cri_ssbri_bitlen =ceil(log2 (nb_ssb_resources)); - csi_report->CSI_report_bitlen.rsrp_bitlen = 7; //From spec 38.212 Table 6.3.1.1.2-6: CRI, SSBRI, and RSRP - csi_report->CSI_report_bitlen.diff_rsrp_bitlen =4; //From spec 38.212 Table 6.3.1.1.2-6: CRI, SSBRI, and RSRP - } else { - csi_report->CSI_report_bitlen.cri_ssbri_bitlen =0; - csi_report->CSI_report_bitlen.rsrp_bitlen = 0; - csi_report->CSI_report_bitlen.diff_rsrp_bitlen =0; - } - - LOG_I (MAC, "UCI: CSI_bit len : ssbri %d, rsrp: %d, diff_rsrp: %d\n", - csi_report->CSI_report_bitlen.cri_ssbri_bitlen, - csi_report->CSI_report_bitlen.rsrp_bitlen, - csi_report->CSI_report_bitlen.diff_rsrp_bitlen); - } - - uint8_t ri_restriction; - uint8_t ri_bitlen; - uint8_t nb_allowed_ri; - uint8_t max_ri; - - if (NR_CSI_ReportConfig__reportQuantity_PR_cri_RI_PMI_CQI == reportQuantity_type || - NR_CSI_ReportConfig__reportQuantity_PR_cri_RI_LI_PMI_CQI==reportQuantity_type || - NR_CSI_ReportConfig__reportQuantity_PR_cri_RI_CQI==reportQuantity_type || - NR_CSI_ReportConfig__reportQuantity_PR_cri_RI_i1_CQI==reportQuantity_type|| - NR_CSI_ReportConfig__reportQuantity_PR_cri_RI_i1==reportQuantity_type){ - - for ( csi_ssb_idx = 0; csi_ssb_idx < csi_MeasConfig->csi_SSB_ResourceSetToAddModList->list.count; csi_ssb_idx++) { - if (csi_MeasConfig->nzp_CSI_RS_ResourceSetToAddModList->list.array[csi_ssb_idx]->nzp_CSI_ResourceSetId == - *(csi_resourceconfig->csi_RS_ResourceSetList.choice.nzp_CSI_RS_SSB->nzp_CSI_RS_ResourceSetList->list.array[0])) { - ///For periodic and semi-persistent CSI Resource Settings, the number of CSI-RS Resource Sets configured is limited to S=1 for spec 38.212 - nb_ssb_resources= csi_MeasConfig->nzp_CSI_RS_ResourceSetToAddModList->list.array[csi_ssb_idx]->nzp_CSI_RS_Resources.list.count; - csi_report->CSI_Index_list = csi_MeasConfig->nzp_CSI_RS_ResourceSetToAddModList->list.array[csi_ssb_idx]->nzp_CSI_RS_Resources.list.array; - csi_report->SSB_Index_list = NULL; - } - break; - } - csi_report->csi_meas_bitlen.cri_bitlen=ceil(log2 (nb_ssb_resources)); - - if (NR_CodebookConfig__codebookType__type1__subType_PR_typeI_SinglePanel==csi_reportconfig->codebookConfig->codebookType.choice.type1->subType.present){ - - switch (RC.nrmac[Mod_idP]->config[0].carrier_config.num_tx_ant.value) { - case 1:; - csi_report->csi_meas_bitlen.ri_bitlen=0; - break; - case 2: - /* From Spec 38.212 - * If the higher layer parameter nrofCQIsPerReport=1, nRI in Table 6.3.1.1.2-3 is the number of allowed rank indicator - * values in the 4 LSBs of the higher layer parameter typeI-SinglePanel-ri-Restriction according to Subclause 5.2.2.2.1 [6, - * TS 38.214]; otherwise nRI in Table 6.3.1.1.2-3 is the number of allowed rank indicator values according to Subclause - * 5.2.2.2.1 [6, TS 38.214]. - * - * But from Current RRC ASN structures nrofCQIsPerReport is not present. Present a dummy variable is present so using it to - * calculate RI for antennas equal or more than two. - * */ - AssertFatal (NULL!=csi_reportconfig->dummy, "nrofCQIsPerReport is not present"); - - ri_restriction = csi_reportconfig->codebookConfig->codebookType.choice.type1->subType.choice.typeI_SinglePanel->typeI_SinglePanel_ri_Restriction.buf[0]; - - /* Replace dummy with the nrofCQIsPerReport from the CSIreport - config when equalent ASN structure present */ - if (0==*(csi_reportconfig->dummy)){ - nb_allowed_ri = number_of_bits_set((ri_restriction & 0xf0), &max_ri); - ri_bitlen = ceil(log2(nb_allowed_ri)); - } - else{ - nb_allowed_ri = number_of_bits_set(ri_restriction, &max_ri); - ri_bitlen = ceil(log2(nb_allowed_ri)); - } - ri_bitlen = ri_bitlen<1?ri_bitlen:1; //from the spec 38.212 and table 6.3.1.1.2-3: RI, LI, CQI, and CRI of codebookType=typeI-SinglePanel - csi_report->csi_meas_bitlen.ri_bitlen=ri_bitlen; - break; - case 4: - AssertFatal (NULL!=csi_reportconfig->dummy, "nrofCQIsPerReport is not present"); - - ri_restriction = csi_reportconfig->codebookConfig->codebookType.choice.type1->subType.choice.typeI_SinglePanel->typeI_SinglePanel_ri_Restriction.buf[0]; - - /* Replace dummy with the nrofCQIsPerReport from the CSIreport - config when equalent ASN structure present */ - if (0==*(csi_reportconfig->dummy)){ - nb_allowed_ri = number_of_bits_set((ri_restriction & 0xf0), &max_ri); - ri_bitlen = ceil(log2(nb_allowed_ri)); - } - else{ - nb_allowed_ri = number_of_bits_set(ri_restriction,&max_ri); - ri_bitlen = ceil(log2(nb_allowed_ri)); - } - ri_bitlen = ri_bitlen<2?ri_bitlen:2; //from the spec 38.212 and table 6.3.1.1.2-3: RI, LI, CQI, and CRI of codebookType=typeI-SinglePanel - csi_report->csi_meas_bitlen.ri_bitlen=ri_bitlen; - break; - case 6: - case 8: - AssertFatal (NULL!=csi_reportconfig->dummy, "nrofCQIsPerReport is not present"); - - ri_restriction = csi_reportconfig->codebookConfig->codebookType.choice.type1->subType.choice.typeI_SinglePanel->typeI_SinglePanel_ri_Restriction.buf[0]; - - /* Replace dummy with the nrofCQIsPerReport from the CSIreport - config when equalent ASN structure present */ - if (0==*(csi_reportconfig->dummy)){ - nb_allowed_ri = number_of_bits_set((ri_restriction & 0xf0),&max_ri); - ri_bitlen = ceil(log2(nb_allowed_ri)); - } - else{ - nb_allowed_ri = number_of_bits_set(ri_restriction, &max_ri); - ri_bitlen = ceil(log2(nb_allowed_ri)); - } - csi_report->csi_meas_bitlen.ri_bitlen=ri_bitlen; - break; - default: - AssertFatal(RC.nrmac[Mod_idP]->config[0].carrier_config.num_tx_ant.value>8,"Number of antennas %d are out of range", RC.nrmac[Mod_idP]->config[0].carrier_config.num_tx_ant.value); - } - } - csi_report->csi_meas_bitlen.li_bitlen=0; - csi_report->csi_meas_bitlen.cqi_bitlen=0; - csi_report->csi_meas_bitlen.pmi_x1_bitlen=0; - csi_report->csi_meas_bitlen.pmi_x2_bitlen=0; - } - - if( NR_CSI_ReportConfig__reportQuantity_PR_cri_RI_LI_PMI_CQI==reportQuantity_type ){ - if (NR_CodebookConfig__codebookType__type1__subType_PR_typeI_SinglePanel==csi_reportconfig->codebookConfig->codebookType.choice.type1->subType.present){ - - switch (RC.nrmac[Mod_idP]->config[0].carrier_config.num_tx_ant.value) { - case 1:; - csi_report->csi_meas_bitlen.li_bitlen=0; - break; - case 2: - case 4: - case 6: - case 8: - /* From Spec 38.212 - * If the higher layer parameter nrofCQIsPerReport=1, nRI in Table 6.3.1.1.2-3 is the number of allowed rank indicator - * values in the 4 LSBs of the higher layer parameter typeI-SinglePanel-ri-Restriction according to Subclause 5.2.2.2.1 [6, - * TS 38.214]; otherwise nRI in Table 6.3.1.1.2-3 is the number of allowed rank indicator values according to Subclause - * 5.2.2.2.1 [6, TS 38.214]. - * - * But from Current RRC ASN structures nrofCQIsPerReport is not present. Present a dummy variable is present so using it to - * calculate RI for antennas equal or more than two. - * */ - //! TODO: The bit length of LI is as follows LI = log2(RI), Need to confirm wheather we should consider maximum RI can be reported from ri_restricted - // or we should consider reported RI. If we need to consider reported RI for calculating LI bit length then we need to modify the code. - csi_report->csi_meas_bitlen.li_bitlen=ceil(log2(max_ri))<2?ceil(log2(max_ri)):2; - break; - default: - AssertFatal(RC.nrmac[Mod_idP]->config[0].carrier_config.num_tx_ant.value>8,"Number of antennas %d are out of range", RC.nrmac[Mod_idP]->config[0].carrier_config.num_tx_ant.value); - } - } - } - - if (NR_CSI_ReportConfig__reportQuantity_PR_cri_RI_PMI_CQI == reportQuantity_type || - NR_CSI_ReportConfig__reportQuantity_PR_cri_RI_LI_PMI_CQI==reportQuantity_type || - NR_CSI_ReportConfig__reportQuantity_PR_cri_RI_CQI==reportQuantity_type || - NR_CSI_ReportConfig__reportQuantity_PR_cri_RI_i1_CQI==reportQuantity_type){ - - switch (RC.nrmac[Mod_idP]->config[0].carrier_config.num_tx_ant.value){ - case 1: - case 2: - case 4: - case 6: - case 8: - /* From Spec 38.212 - * If the higher layer parameter nrofCQIsPerReport=1, nRI in Table 6.3.1.1.2-3 is the number of allowed rank indicator - * values in the 4 LSBs of the higher layer parameter typeI-SinglePanel-ri-Restriction according to Subclause 5.2.2.2.1 [6, - * TS 38.214]; otherwise nRI in Table 6.3.1.1.2-3 is the number of allowed rank indicator values according to Subclause - * 5.2.2.2.1 [6, TS 38.214]. - * - * But from Current RRC ASN structures nrofCQIsPerReport is not present. Present a dummy variable is present so using it to - * calculate RI for antennas equal or more than two. - * */ - - if (max_ri > 4 && max_ri < 8){ - if (NR_CodebookConfig__codebookType__type1__subType_PR_typeI_SinglePanel==csi_reportconfig->codebookConfig->codebookType.choice.type1->subType.present){ - if (NR_CSI_ReportConfig__reportFreqConfiguration__cqi_FormatIndicator_widebandCQI==csi_reportconfig->reportFreqConfiguration->cqi_FormatIndicator) - csi_report->csi_meas_bitlen.cqi_bitlen = 8; - else - csi_report->csi_meas_bitlen.cqi_bitlen = 4; - } - }else{ //This condition will work even for type1-multipanel. - if (NR_CSI_ReportConfig__reportFreqConfiguration__cqi_FormatIndicator_widebandCQI==csi_reportconfig->reportFreqConfiguration->cqi_FormatIndicator) - csi_report->csi_meas_bitlen.cqi_bitlen = 4; - else - csi_report->csi_meas_bitlen.cqi_bitlen = 2; - } - break; - default: - AssertFatal(RC.nrmac[Mod_idP]->config[0].carrier_config.num_tx_ant.value>8,"Number of antennas %d are out of range", RC.nrmac[Mod_idP]->config[0].carrier_config.num_tx_ant.value); - } - } - if (NR_CSI_ReportConfig__reportQuantity_PR_cri_RI_PMI_CQI == reportQuantity_type || - NR_CSI_ReportConfig__reportQuantity_PR_cri_RI_LI_PMI_CQI==reportQuantity_type){ - if (NR_CodebookConfig__codebookType__type1__subType_PR_typeI_SinglePanel==csi_reportconfig->codebookConfig->codebookType.choice.type1->subType.present){ - switch (csi_reportconfig->codebookConfig->codebookType.choice.type1->subType.choice.typeI_SinglePanel->nrOfAntennaPorts.present){ - case NR_CodebookConfig__codebookType__type1__subType__typeI_SinglePanel__nrOfAntennaPorts_PR_two: - if (max_ri ==1) - csi_report->csi_meas_bitlen.pmi_x1_bitlen = 2; - else if (max_ri ==2) - csi_report->csi_meas_bitlen.pmi_x1_bitlen = 1; - break; - default: - AssertFatal(csi_reportconfig->codebookConfig->codebookType.choice.type1->subType.choice.typeI_SinglePanel->nrOfAntennaPorts.present!= - NR_CodebookConfig__codebookType__type1__subType__typeI_SinglePanel__nrOfAntennaPorts_PR_two, - "Not handled Yet %d", csi_reportconfig->codebookConfig->codebookType.choice.type1->subType.choice.typeI_SinglePanel->nrOfAntennaPorts.present); - break; - } - } - } - break; - } - } + if (nb_resources) { + csi_report->CSI_report_bitlen.cri_ssbri_bitlen =ceil(log2 (nb_resources)); + csi_report->CSI_report_bitlen.rsrp_bitlen = 7; //From spec 38.212 Table 6.3.1.1.2-6: CRI, SSBRI, and RSRP + csi_report->CSI_report_bitlen.diff_rsrp_bitlen =4; //From spec 38.212 Table 6.3.1.1.2-6: CRI, SSBRI, and RSRP + } else { + csi_report->CSI_report_bitlen.cri_ssbri_bitlen =0; + csi_report->CSI_report_bitlen.rsrp_bitlen = 0; + csi_report->CSI_report_bitlen.diff_rsrp_bitlen =0; } } +uint8_t compute_ri_bitlen(struct NR_CSI_ReportConfig *csi_reportconfig, + nr_csi_report_t *csi_report){ + + struct NR_CodebookConfig *codebookConfig = csi_reportconfig->codebookConfig; + uint8_t nb_allowed_ri, ri_restriction,ri_bitlen; + uint8_t max_ri = 0; + + if (codebookConfig == NULL) { + csi_report->csi_meas_bitlen.ri_bitlen=0; + return max_ri; + } + + // codebook type1 single panel + if (NR_CodebookConfig__codebookType__type1__subType_PR_typeI_SinglePanel==codebookConfig->codebookType.choice.type1->subType.present){ + struct NR_CodebookConfig__codebookType__type1__subType__typeI_SinglePanel *type1single = codebookConfig->codebookType.choice.type1->subType.choice.typeI_SinglePanel; + if (type1single->nrOfAntennaPorts.present == NR_CodebookConfig__codebookType__type1__subType__typeI_SinglePanel__nrOfAntennaPorts_PR_two){ + // two antenna ports case + /* From Spec 38.212 + * If the higher layer parameter nrofCQIsPerReport=1, nRI in Table 6.3.1.1.2-3 is the number of allowed rank indicator + * values in the 4 LSBs of the higher layer parameter typeI-SinglePanel-ri-Restriction according to Subclause 5.2.2.2.1 [6, + * TS 38.214]; otherwise nRI in Table 6.3.1.1.2-3 is the number of allowed rank indicator values according to Subclause + * 5.2.2.2.1 [6, TS 38.214]. + * + * But from Current RRC ASN structures nrofCQIsPerReport is not present. Present a dummy variable is present so using it to + * calculate RI for antennas equal or more than two. + * */ + AssertFatal (NULL!=csi_reportconfig->dummy, "nrofCQIsPerReport is not present"); + + ri_restriction = csi_reportconfig->codebookConfig->codebookType.choice.type1->subType.choice.typeI_SinglePanel->typeI_SinglePanel_ri_Restriction.buf[0]; + + /* Replace dummy with the nrofCQIsPerReport from the CSIreport + config when equalent ASN structure present */ + if (0==*(csi_reportconfig->dummy)){ + nb_allowed_ri = number_of_bits_set((ri_restriction & 0xf0), &max_ri); + ri_bitlen = ceil(log2(nb_allowed_ri)); + } + else{ + nb_allowed_ri = number_of_bits_set(ri_restriction, &max_ri); + ri_bitlen = ceil(log2(nb_allowed_ri)); + } + ri_bitlen = ri_bitlen<1?ri_bitlen:1; //from the spec 38.212 and table 6.3.1.1.2-3: RI, LI, CQI, and CRI of codebookType=typeI-SinglePanel + csi_report->csi_meas_bitlen.ri_bitlen=ri_bitlen; + } + if (type1single->nrOfAntennaPorts.present == NR_CodebookConfig__codebookType__type1__subType__typeI_SinglePanel__nrOfAntennaPorts_PR_moreThanTwo){ + if (type1single->nrOfAntennaPorts.choice.moreThanTwo->n1_n2.present == + NR_CodebookConfig__codebookType__type1__subType__typeI_SinglePanel__nrOfAntennaPorts__moreThanTwo__n1_n2_PR_two_one_TypeI_SinglePanel_Restriction) { + // 4 ports + AssertFatal (NULL!=csi_reportconfig->dummy, "nrofCQIsPerReport is not present"); + + ri_restriction = csi_reportconfig->codebookConfig->codebookType.choice.type1->subType.choice.typeI_SinglePanel->typeI_SinglePanel_ri_Restriction.buf[0]; + + /* Replace dummy with the nrofCQIsPerReport from the CSIreport + config when equalent ASN structure present*/ + if (0==*(csi_reportconfig->dummy)){ + nb_allowed_ri = number_of_bits_set((ri_restriction & 0xf0), &max_ri); + ri_bitlen = ceil(log2(nb_allowed_ri)); + } + else{ + nb_allowed_ri = number_of_bits_set(ri_restriction,&max_ri); + ri_bitlen = ceil(log2(nb_allowed_ri)); + } + ri_bitlen = ri_bitlen<2?ri_bitlen:2; //from the spec 38.212 and table 6.3.1.1.2-3: RI, LI, CQI, and CRI of codebookType=typeI-SinglePanel + csi_report->csi_meas_bitlen.ri_bitlen=ri_bitlen; + } + else { + // more than 4 ports + AssertFatal (NULL!=csi_reportconfig->dummy, "nrofCQIsPerReport is not present"); + + ri_restriction = csi_reportconfig->codebookConfig->codebookType.choice.type1->subType.choice.typeI_SinglePanel->typeI_SinglePanel_ri_Restriction.buf[0]; + + /* Replace dummy with the nrofCQIsPerReport from the CSIreport + config when equalent ASN structure present */ + if (0==*(csi_reportconfig->dummy)){ + nb_allowed_ri = number_of_bits_set((ri_restriction & 0xf0),&max_ri); + ri_bitlen = ceil(log2(nb_allowed_ri)); + } + else{ + nb_allowed_ri = number_of_bits_set(ri_restriction, &max_ri); + ri_bitlen = ceil(log2(nb_allowed_ri)); + } + csi_report->csi_meas_bitlen.ri_bitlen=ri_bitlen; + } + } + return max_ri; + } + else + AssertFatal(1==0,"Other configurations not yet implemented\n"); +} + +void compute_li_bitlen(struct NR_CSI_ReportConfig *csi_reportconfig, + uint8_t max_ri, + nr_csi_report_t *csi_report){ + + struct NR_CodebookConfig *codebookConfig = csi_reportconfig->codebookConfig; + if (codebookConfig == NULL) { + csi_report->csi_meas_bitlen.li_bitlen=0; + return; + } + // codebook type1 single panel + if (NR_CodebookConfig__codebookType__type1__subType_PR_typeI_SinglePanel==codebookConfig->codebookType.choice.type1->subType.present){ + /* From Spec 38.212 + * If the higher layer parameter nrofCQIsPerReport=1, nRI in Table 6.3.1.1.2-3 is the number of allowed rank indicator + * values in the 4 LSBs of the higher layer parameter typeI-SinglePanel-ri-Restriction according to Subclause 5.2.2.2.1 [6, + * TS 38.214]; otherwise nRI in Table 6.3.1.1.2-3 is the number of allowed rank indicator values according to Subclause + * 5.2.2.2.1 [6, TS 38.214]. + * + * But from Current RRC ASN structures nrofCQIsPerReport is not present. Present a dummy variable is present so using it to + * calculate RI for antennas equal or more than two. + */ + //! TODO: The bit length of LI is as follows LI = log2(RI), Need to confirm wheather we should consider maximum RI can be reported from ri_restricted + // or we should consider reported RI. If we need to consider reported RI for calculating LI bit length then we need to modify the code. + csi_report->csi_meas_bitlen.li_bitlen=ceil(log2(max_ri))<2?ceil(log2(max_ri)):2; + } + else + AssertFatal(1==0,"Other configurations not yet implemented\n"); +} + + +void compute_cqi_bitlen(struct NR_CSI_ReportConfig *csi_reportconfig, + uint8_t max_ri, + nr_csi_report_t *csi_report){ + + struct NR_CodebookConfig *codebookConfig = csi_reportconfig->codebookConfig; + struct NR_CSI_ReportConfig__reportFreqConfiguration *freq_config = csi_reportconfig->reportFreqConfiguration; + + if (*freq_config->cqi_FormatIndicator == NR_CSI_ReportConfig__reportFreqConfiguration__cqi_FormatIndicator_widebandCQI) { + csi_report->csi_meas_bitlen.cqi_bitlen = 4; + if(codebookConfig != NULL) { + if (NR_CodebookConfig__codebookType__type1__subType_PR_typeI_SinglePanel == codebookConfig->codebookType.choice.type1->subType.present){ + struct NR_CodebookConfig__codebookType__type1__subType__typeI_SinglePanel *type1single = codebookConfig->codebookType.choice.type1->subType.choice.typeI_SinglePanel; + if (type1single->nrOfAntennaPorts.present == NR_CodebookConfig__codebookType__type1__subType__typeI_SinglePanel__nrOfAntennaPorts_PR_moreThanTwo) { + if (type1single->nrOfAntennaPorts.choice.moreThanTwo->n1_n2.present > + NR_CodebookConfig__codebookType__type1__subType__typeI_SinglePanel__nrOfAntennaPorts__moreThanTwo__n1_n2_PR_two_one_TypeI_SinglePanel_Restriction) { + // more than 4 antenna ports + if (max_ri > 4) + csi_report->csi_meas_bitlen.cqi_bitlen += 4; // CQI for second TB + } + } + } + } + } + else + AssertFatal(1==0,"Sub-band CQI reporting not yet supported"); +} + +//!TODO : same function can be written to handle csi_resources +void compute_csi_bitlen(NR_CSI_MeasConfig_t *csi_MeasConfig, NR_UE_info_t *UE_info, int UE_id, module_id_t Mod_idP){ + uint8_t csi_report_id = 0; + uint8_t nb_resources = 0; + uint8_t max_ri = 0; + NR_CSI_ReportConfig__reportQuantity_PR reportQuantity_type; + NR_CSI_ResourceConfigId_t csi_ResourceConfigId; + struct NR_CSI_ResourceConfig *csi_resourceconfig; + + // for each CSI measurement report configuration (list of CSI-ReportConfig) + for (csi_report_id=0; csi_report_id < csi_MeasConfig->csi_ReportConfigToAddModList->list.count; csi_report_id++){ + struct NR_CSI_ReportConfig *csi_reportconfig = csi_MeasConfig->csi_ReportConfigToAddModList->list.array[csi_report_id]; + // MAC structure for CSI measurement reports (per UE and per report) + nr_csi_report_t *csi_report = &UE_info->csi_report_template[UE_id][csi_report_id]; + // csi-ResourceConfigId of a CSI-ResourceConfig included in the configuration + // (either CSI-RS or SSB) + csi_ResourceConfigId = csi_reportconfig->resourcesForChannelMeasurement; + // looking for CSI-ResourceConfig + int found_resource = 0; + int csi_resourceidx = 0; + while (found_resource == 0 && csi_resourceidx < csi_MeasConfig->csi_ResourceConfigToAddModList->list.count) { + csi_resourceconfig = csi_MeasConfig->csi_ResourceConfigToAddModList->list.array[csi_resourceidx]; + if ( csi_resourceconfig->csi_ResourceConfigId == csi_ResourceConfigId) + found_resource = 1; + csi_resourceidx++; + } + AssertFatal(found_resource==1,"Not able to found any CSI-ResourceConfig with csi-ResourceConfigId %ld\n", + csi_ResourceConfigId); + + long resourceType = csi_resourceconfig->resourceType; + + reportQuantity_type = csi_reportconfig->reportQuantity.present; + csi_report->reportQuantity_type = reportQuantity_type; + + // setting the CSI or SSB index list + if (NR_CSI_ReportConfig__reportQuantity_PR_ssb_Index_RSRP == csi_report->reportQuantity_type) { + for (int csi_idx = 0; csi_idx < csi_MeasConfig->csi_SSB_ResourceSetToAddModList->list.count; csi_idx++) { + if (csi_MeasConfig->csi_SSB_ResourceSetToAddModList->list.array[csi_idx]->csi_SSB_ResourceSetId == + *(csi_resourceconfig->csi_RS_ResourceSetList.choice.nzp_CSI_RS_SSB->csi_SSB_ResourceSetList->list.array[0])){ + //We can configure only one SSB resource set from spec 38.331 IE CSI-ResourceConfig + nb_resources= csi_MeasConfig->csi_SSB_ResourceSetToAddModList->list.array[csi_idx]->csi_SSB_ResourceList.list.count; + csi_report->SSB_Index_list = csi_MeasConfig->csi_SSB_ResourceSetToAddModList->list.array[csi_idx]->csi_SSB_ResourceList.list.array; + csi_report->CSI_Index_list = NULL; + break; + } + } + } + else { + if (resourceType == NR_CSI_ResourceConfig__resourceType_periodic) { + for (int csi_idx = 0; csi_idx < csi_MeasConfig->nzp_CSI_RS_ResourceSetToAddModList->list.count; csi_idx++) { + if (csi_MeasConfig->nzp_CSI_RS_ResourceSetToAddModList->list.array[csi_idx]->nzp_CSI_ResourceSetId == + *(csi_resourceconfig->csi_RS_ResourceSetList.choice.nzp_CSI_RS_SSB->nzp_CSI_RS_ResourceSetList->list.array[0])) { + //For periodic and semi-persistent CSI Resource Settings, the number of CSI-RS Resource Sets configured is limited to S=1 for spec 38.212 + nb_resources= csi_MeasConfig->nzp_CSI_RS_ResourceSetToAddModList->list.array[csi_idx]->nzp_CSI_RS_Resources.list.count; + csi_report->CSI_Index_list = csi_MeasConfig->nzp_CSI_RS_ResourceSetToAddModList->list.array[csi_idx]->nzp_CSI_RS_Resources.list.array; + csi_report->SSB_Index_list = NULL; + break; + } + } + } + else AssertFatal(1==0,"Only periodic resource configuration currently supported\n"); + } + + // computation of bit length depending on the report type + switch(reportQuantity_type){ + case (NR_CSI_ReportConfig__reportQuantity_PR_ssb_Index_RSRP): + compute_rsrp_bitlen(csi_reportconfig, nb_resources, csi_report); + break; + case (NR_CSI_ReportConfig__reportQuantity_PR_cri_RSRP): + compute_rsrp_bitlen(csi_reportconfig, nb_resources, csi_report); + break; + case (NR_CSI_ReportConfig__reportQuantity_PR_cri_RI_CQI): + csi_report->csi_meas_bitlen.cri_bitlen=ceil(log2(nb_resources)); + max_ri = compute_ri_bitlen(csi_reportconfig, csi_report); + compute_cqi_bitlen(csi_reportconfig, max_ri, csi_report); + break; + default: + AssertFatal(1==0,"Not yet supported CSI report quantity type"); + } + } +} + uint16_t nr_get_csi_bitlen(int Mod_idP, int UE_id,