addressing review

openair2/LAYER2/NR_MAC_UE/config_ue.c

@@ -344,7 +344,7 @@ void config_common_ue(NR_UE_MAC_INST_t *mac,
     cfg->ssb_table.ssb_offset_point_a = absolute_diff/(12*scs_scaling) - 10;
     cfg->ssb_table.ssb_period = *scc->ssb_periodicityServingCell;
 
-    // NSA -> take ssb offset from SSC
+    // NSA -> take ssb offset from SCS
     cfg->ssb_table.ssb_subcarrier_offset = absolute_diff%(12*scs_scaling);
     
     switch (scc->ssb_PositionsInBurst->present) {

openair2/LAYER2/NR_MAC_gNB/config.c

@@ -343,14 +343,12 @@ void config_common(int Mod_idP, int pdsch_AntennaPorts, int pusch_AntennaPorts,
   uint32_t absolute_diff = (*scc->downlinkConfigCommon->frequencyInfoDL->absoluteFrequencySSB - scc->downlinkConfigCommon->frequencyInfoDL->absoluteFrequencyPointA);
 
   RC.nrmac[Mod_idP]->ssb_SubcarrierOffset = absolute_diff%(12*scs_scaling);
-  int sco;
+  int sco = 31; // no SIB1
   if(get_softmodem_params()->sa) {
     sco = RC.nrmac[Mod_idP]->ssb_SubcarrierOffset;
     if(frequency_range == FR1)
-      sco = sco<<cfg->ssb_config.scs_common.value;
+      sco <<= cfg->ssb_config.scs_common.value; // 38.211 section 7.4.3.1 in FR1 it is expresses in terms of 15kHz SCS
   }
-  else
-    sco = 31; // no SIB1
 
   cfg->ssb_table.ssb_offset_point_a.value = absolute_diff/(12*scs_scaling) - 10; //absoluteFrequencySSB is the central frequency of SSB which is made by 20RBs in total
   cfg->ssb_table.ssb_offset_point_a.tl.tag = NFAPI_NR_CONFIG_SSB_OFFSET_POINT_A_TAG;

openair2/RRC/NR/MESSAGES/asn1_msg.c

@@ -236,7 +236,7 @@ uint8_t do_MIB_NR(gNB_RRC_INST *rrc,uint32_t frame) {
   if (get_softmodem_params()->sa) {
     ssb_subcarrier_offset = absolute_diff%(12*scs_scaling);
     if(frequency_range == FR1)
-      ssb_subcarrier_offset = ssb_subcarrier_offset<<*scc->ssbSubcarrierSpacing;
+      ssb_subcarrier_offset <<= *scc->ssbSubcarrierSpacing;
   }
   mib->message.choice.mib->ssb_SubcarrierOffset = ssb_subcarrier_offset&15;
 

targets/PROJECTS/GENERIC-LTE-EPC/CONF/gnb.band66.tm1.25PRB.usrpn300.conf

@@ -21,9 +21,6 @@ gNBs =
 
     ////////// Physical parameters:
 
-    ssb_SubcarrierOffset                                      = 0;
-    pdsch_AntennaPorts                                        = 1;
-    pusch_AntennaPorts                                        = 1;
     min_rxtxtime                                              = 6;
 
     servingCellConfigCommon = (

targets/PROJECTS/GENERIC-NR-5GC/CONF/gnb.sa.band78.fr1.106PRB.usrpb210.4layer.conf

@@ -32,10 +32,9 @@ gNBs =
 
     ////////// Physical parameters:
 
-    ssb_SubcarrierOffset                                      = 0;
+    pdsch_AntennaPorts_XP = 2;
-    pdsch_AntennaPorts                                        = 4;
+    pdsch_AntennaPorts_N1 = 2;
     pusch_AntennaPorts                                        = 4;
-    sib1_tda                                                  = 0;
 
      pdcch_ConfigSIB1 = (
       {
@@ -73,15 +72,6 @@ gNBs =
       #pdcch-ConfigCommon
         initialDLBWPcontrolResourceSetZero                              = 12;
         initialDLBWPsearchSpaceZero                                     = 0;
-      #pdsch-ConfigCommon
-        #pdschTimeDomainAllocationList (up to 16 entries)
-        initialDLBWPk0_0                    = 0;  #for DL slot
-        initialDLBWPmappingType_0           = 0;  #0=typeA,1=typeB
-        initialDLBWPstartSymbolAndLength_0  = 40; #this is SS=1,L=13
-
-        initialDLBWPk0_1                    = 0;  #for mixed slot
-        initialDLBWPmappingType_1           = 0;
-        initialDLBWPstartSymbolAndLength_1  = 57; #this is SS=1,L=5
 
   #uplinkConfigCommon
      #frequencyInfoUL
@@ -136,19 +126,6 @@ gNBs =
 # 0=unrestricted, 1=restricted type A, 2=restricted type B
         restrictedSetConfig                                         = 0,
 
-      # pusch-ConfigCommon (up to 16 elements)
-        initialULBWPk2_0                      = 6;  # used for UL slot
-        initialULBWPmappingType_0             = 1
-        initialULBWPstartSymbolAndLength_0    = 41; # this is SS=0 L=13
-
-        initialULBWPk2_1                      = 6;  # used for mixed slot
-        initialULBWPmappingType_1             = 1;
-        initialULBWPstartSymbolAndLength_1    = 52; # this is SS=10 L=4
-
-        initialULBWPk2_2                      = 7;  # used for Msg.3 during RA
-        initialULBWPmappingType_2             = 1;
-        initialULBWPstartSymbolAndLength_2    = 52; # this is SS=10 L=4
-
         msg3_DeltaPreamble                                          = 1;
         p0_NominalWithGrant                                         =-90;
 

targets/PROJECTS/GENERIC-NR-5GC/CONF/gnb.sa.band78.fr1.217PRB.2x2.usrpn300.conf

@@ -27,7 +27,6 @@ gNBs =
 
     ////////// Physical parameters:
 
-    ssb_SubcarrierOffset  = 0;
     pdsch_AntennaPorts_XP = 1;
     pusch_AntennaPorts    = 2;
     do_CSIRS              = 0;
@@ -318,4 +317,4 @@ log_config :
   rrc_log_level                         ="info";
   ngap_log_level                        ="debug";
   f1ap_log_level                        ="debug";
-};
+};

targets/PROJECTS/GENERIC-NR-5GC/CONF/gnb.sa.band78.fr1.273PRB.2x2.usrpn300.conf

@@ -27,7 +27,6 @@ gNBs =
 
     ////////// Physical parameters:
 
-    ssb_SubcarrierOffset  = 0;
     pdsch_AntennaPorts_XP = 1;
     pusch_AntennaPorts    = 2;
     do_CSIRS              = 0;
@@ -318,4 +317,4 @@ log_config :
   rrc_log_level                         ="info";
   ngap_log_level                        ="debug";
   f1ap_log_level                        ="debug";
-};
+};