modifications in RRC for lower number of RBs

openair2/RRC/NR/rrc_gNB_reconfig.c

@@ -425,11 +425,20 @@ void fill_default_secondaryCellGroup(NR_ServingCellConfigCommon_t *servingcellco
  bwp->bwp_Common->pdcch_ConfigCommon->choice.setup->controlResourceSetZero=NULL;
  bwp->bwp_Common->pdcch_ConfigCommon->choice.setup->commonControlResourceSet=calloc(1,sizeof(*bwp->bwp_Common->pdcch_ConfigCommon->choice.setup->commonControlResourceSet));
 
+ int curr_bwp = NRRIV2BW(bwp->bwp_Common->genericParameters.locationAndBandwidth,275);
+
  NR_ControlResourceSet_t *coreset = calloc(1,sizeof(*coreset));
  coreset->controlResourceSetId=1;
- // frequencyDomainResources '11111111 11111111 00000000 00000000 00000000 00000'B,
+ // frequency domain resources depends on BWP size
+ // options are 24, 48 or 96
  coreset->frequencyDomainResources.buf = calloc(1,6);
+ if (curr_bwp < 48)
+   coreset->frequencyDomainResources.buf[0] = 0xf0;
+ else
    coreset->frequencyDomainResources.buf[0] = 0xff;
+ if (curr_bwp < 96)
+   coreset->frequencyDomainResources.buf[1] = 0;
+ else
    coreset->frequencyDomainResources.buf[1] = 0xff;
  coreset->frequencyDomainResources.buf[2] = 0;
  coreset->frequencyDomainResources.buf[3] = 0;
@@ -544,6 +553,11 @@ void fill_default_secondaryCellGroup(NR_ServingCellConfigCommon_t *servingcellco
  ss2->nrofCandidates=calloc(1,sizeof(*ss2->nrofCandidates));
  ss2->nrofCandidates->aggregationLevel1 = NR_SearchSpace__nrofCandidates__aggregationLevel1_n0;
  ss2->nrofCandidates->aggregationLevel2 = NR_SearchSpace__nrofCandidates__aggregationLevel2_n0;
+ if (curr_bwp < 48)
+   ss2->nrofCandidates->aggregationLevel4 = NR_SearchSpace__nrofCandidates__aggregationLevel4_n1;
+ else if (curr_bwp < 96)
+   ss2->nrofCandidates->aggregationLevel4 = NR_SearchSpace__nrofCandidates__aggregationLevel4_n2;
+ else
    ss2->nrofCandidates->aggregationLevel4 = NR_SearchSpace__nrofCandidates__aggregationLevel4_n4;
  ss2->nrofCandidates->aggregationLevel8 = NR_SearchSpace__nrofCandidates__aggregationLevel8_n0;
  ss2->nrofCandidates->aggregationLevel16 = NR_SearchSpace__nrofCandidates__aggregationLevel16_n0;