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reworking function for csi meas report bitlen (still not complete)

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This commit is contained in:
francescomani
2021-04-07 17:56:26 +02:00
parent db25430922
commit 25756a40c7
1 changed files with 251 additions and 271 deletions
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openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_uci.c
+251 -271
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@@ -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,