25 PRB band1 conf

NR UE connets using :

./nr-uesoftmodem --numerology 0 --band 1 -C 2122250000 --CO -190000000 -r 25 --ssb 83 --rfsim

executables/nr-ue.c

@@ -867,6 +867,7 @@ void *UE_thread(void *arg)
   initNotifiedFIFO_nothreadSafe(&freeBlocks);
 
   int timing_advance = UE->timing_advance;
+  int N_TA_offset = UE->N_TA_offset;
   NR_UE_MAC_INST_t *mac = get_mac_inst(UE->Mod_id);
 
   bool syncRunning = false;
@@ -1089,13 +1090,19 @@ void *UE_thread(void *arg)
 
     // use previous timing_advance value to compute writeTimestamp
     const openair0_timestamp writeTimestamp = rx_timestamp + fp->get_samples_slot_timestamp(slot_nr, fp, duration_rx_to_tx)
-                                              - firstSymSamp - UE->N_TA_offset - timing_advance;
+                                              - firstSymSamp - N_TA_offset - timing_advance;
 
     // but use current UE->timing_advance value to compute writeBlockSize
     int writeBlockSize = fp->get_samples_per_slot((slot_nr + duration_rx_to_tx) % nb_slot_frame, fp) - iq_shift_to_apply;
-    if (UE->timing_advance != timing_advance) {
-      writeBlockSize -= UE->timing_advance - timing_advance;
-      timing_advance = UE->timing_advance;
+    int new_timing_advance = UE->timing_advance;
+    if (new_timing_advance != timing_advance) {
+      writeBlockSize -= new_timing_advance- timing_advance;
+      timing_advance = new_timing_advance;
+    }
+    int new_N_TA_offset = UE->N_TA_offset;
+    if (new_N_TA_offset != N_TA_offset) {
+      writeBlockSize -= new_N_TA_offset - N_TA_offset;
+      N_TA_offset = new_N_TA_offset;
     }
 
     if (curMsg.proc.nr_slot_tx == 0)

targets/PROJECTS/GENERIC-NR-5GC/CONF/gnb.sa.band1.u0.25PRB.usrpb210.conf

@@ -0,0 +1,241 @@
+Active_gNBs = ( "gNB-OAI");
+# Asn1_verbosity, choice in: none, info, annoying
+Asn1_verbosity = "none";
+
+gNBs =
+(
+ {
+    ////////// Identification parameters:
+    gNB_ID    =  0xe00;
+    gNB_name  =  "gNB-OAI";
+
+    // Tracking area code, 0x0000 and 0xfffe are reserved values
+    tracking_area_code  =  1;
+    plmn_list = ({ mcc = 001; mnc = 01; mnc_length = 2; snssaiList = ({ sst = 1; }) });
+
+    nr_cellid = 12345678L;
+
+    ////////// Physical parameters:
+
+    do_CSIRS                                                  = 1;
+    do_SRS                                                    = 1;
+
+    servingCellConfigCommon = (
+    {
+ #spCellConfigCommon
+
+      physCellId                                                    = 0;
+
+#  downlinkConfigCommon
+    #frequencyInfoDL
+      # this is 3600 MHz + 43 PRBs@30kHz SCS (same as initial BWP)
+      absoluteFrequencySSB                                             = 424610;
+      dl_frequencyBand                                                 = 1;
+      # this is 3600 MHz
+      dl_absoluteFrequencyPointA                                       = 424000;
+      #scs-SpecificCarrierList
+        dl_offstToCarrier                                              = 0;
+# subcarrierSpacing
+# 0=kHz15, 1=kHz30, 2=kHz60, 3=kHz120
+        dl_subcarrierSpacing                                           = 0;
+        dl_carrierBandwidth                                            = 25;
+     #initialDownlinkBWP
+      #genericParameters
+        # this is RBstart=2,L=20 (275*(L-1))+RBstart
+        initialDLBWPlocationAndBandwidth                               = 6600;
+# subcarrierSpacing
+# 0=kHz15, 1=kHz30, 2=kHz60, 3=kHz120
+        initialDLBWPsubcarrierSpacing                                   = 0;
+      #pdcch-ConfigCommon
+        initialDLBWPcontrolResourceSetZero                              = 0;
+        initialDLBWPsearchSpaceZero                                     = 2;
+
+  #uplinkConfigCommon
+     #frequencyInfoUL
+      ul_frequencyBand                                              = 1;
+      ul_absoluteFrequencyPointA                                    = 386000;
+      #scs-SpecificCarrierList
+      ul_offstToCarrier                                             = 0;
+# subcarrierSpacing
+# 0=kHz15, 1=kHz30, 2=kHz60, 3=kHz120
+      ul_subcarrierSpacing                                          = 0;
+      ul_carrierBandwidth                                           = 25;
+      pMax                                                          = 20;
+     #initialUplinkBWP
+      #genericParameters
+        initialULBWPlocationAndBandwidth                            = 6600;
+# subcarrierSpacing
+# 0=kHz15, 1=kHz30, 2=kHz60, 3=kHz120
+        initialULBWPsubcarrierSpacing                               = 0;
+      #rach-ConfigCommon
+        #rach-ConfigGeneric
+          prach_ConfigurationIndex                                  = 98;
+#prach_msg1_FDM
+#0 = one, 1=two, 2=four, 3=eight
+          prach_msg1_FDM                                            = 0;
+          prach_msg1_FrequencyStart                                 = 0;
+          zeroCorrelationZoneConfig                                 = 12;
+          preambleReceivedTargetPower                               = -90;
+#preamblTransMax (0...10) = (3,4,5,6,7,8,10,20,50,100,200)
+          preambleTransMax                                          = 6;
+#powerRampingStep
+# 0=dB0,1=dB2,2=dB4,3=dB6
+        powerRampingStep                                            = 1;
+#ra_ReponseWindow
+#1,2,4,8,10,20,40,80
+        ra_ResponseWindow                                           = 4;
+#ssb_perRACH_OccasionAndCB_PreamblesPerSSB_PR
+#1=oneeighth,2=onefourth,3=half,4=one,5=two,6=four,7=eight,8=sixteen
+        ssb_perRACH_OccasionAndCB_PreamblesPerSSB_PR                = 4;
+#one (0..15) 4,8,12,16,...60,64
+        ssb_perRACH_OccasionAndCB_PreamblesPerSSB                   = 15;
+#ra_ContentionResolutionTimer
+#(0..7) 8,16,24,32,40,48,56,64
+        ra_ContentionResolutionTimer                                = 7;
+        rsrp_ThresholdSSB                                           = 19;
+#prach-RootSequenceIndex_PR
+#1 = 839, 2 = 139
+        prach_RootSequenceIndex_PR                                  = 2;
+        prach_RootSequenceIndex                                     = 1;
+        # SCS for msg1, can only be 15 for 30 kHz < 6 GHz, takes precendence over the one derived from prach-ConfigIndex
+        #
+        msg1_SubcarrierSpacing                                      = 0;
+# restrictedSetConfig
+# 0=unrestricted, 1=restricted type A, 2=restricted type B
+        restrictedSetConfig                                         = 0;
+
+        msg3_DeltaPreamble                                          = 1;
+        p0_NominalWithGrant                                         =-90;
+
+# pucch-ConfigCommon setup :
+# pucchGroupHopping
+# 0 = neither, 1= group hopping, 2=sequence hopping
+        pucchGroupHopping                                           = 0;
+        hoppingId                                                   = 40;
+        p0_nominal                                                  = -70;
+        n_TimingAdvanceOffset                                       = 0;
+
+      ssb_PositionsInBurst_Bitmap                                   = 1;
+
+# ssb_periodicityServingCell
+# 0 = ms5, 1=ms10, 2=ms20, 3=ms40, 4=ms80, 5=ms160, 6=spare2, 7=spare1
+      ssb_periodicityServingCell                                    = 2;
+
+# dmrs_TypeA_position
+# 0 = pos2, 1 = pos3
+      dmrs_TypeA_Position                                           = 0;
+
+# subcarrierSpacing
+# 0=kHz15, 1=kHz30, 2=kHz60, 3=kHz120
+      subcarrierSpacing                                             = 0;
+
+
+  #tdd-UL-DL-ConfigurationCommon
+# subcarrierSpacing
+# 0=kHz15, 1=kHz30, 2=kHz60, 3=kHz120
+      referenceSubcarrierSpacing                                    = 0;
+      # pattern1
+
+      ssPBCH_BlockPower                                             = -25;
+  }
+
+  );
+
+
+    # ------- SCTP definitions
+    SCTP :
+    {
+        # Number of streams to use in input/output
+        SCTP_INSTREAMS  = 2;
+        SCTP_OUTSTREAMS = 2;
+    };
+
+
+    ////////// AMF parameters:
+    amf_ip_address = ({ ipv4 = "192.168.70.132"; });
+
+
+    NETWORK_INTERFACES :
+    {
+        GNB_IPV4_ADDRESS_FOR_NG_AMF              = "192.168.70.129/24";
+        GNB_IPV4_ADDRESS_FOR_NGU                 = "192.168.70.129/24";
+        GNB_PORT_FOR_S1U                         = 2152; # Spec 2152
+    };
+
+  }
+);
+
+MACRLCs = (
+{
+  num_cc                      = 1;
+  tr_s_preference             = "local_L1";
+  tr_n_preference             = "local_RRC";
+  pusch_TargetSNRx10          = 200;
+  pucch_TargetSNRx10          = 200;
+}
+);
+
+L1s = (
+{
+  num_cc = 1;
+  tr_n_preference       = "local_mac";
+  prach_dtx_threshold   = 120;
+  pucch0_dtx_threshold  = 100;
+  ofdm_offset_divisor   = 8; #set this to UINT_MAX for offset 0
+}
+);
+
+RUs = (
+{
+  local_rf       = "yes"
+  nb_tx          = 1
+  nb_rx          = 1
+  att_tx         = 10;
+  att_rx         = 10;
+  bands          = [1];
+  max_pdschReferenceSignalPower = -27;
+  max_rxgain                    = 114;
+  eNB_instances  = [0];
+  clock_src = "internal";
+}
+);
+
+
+rfsimulator :
+{
+  serveraddr = "server";
+  serverport = 4043;
+  options = (); #("saviq"); or/and "chanmod"
+  modelname = "AWGN";
+  IQfile = "/tmp/rfsimulator.iqs";
+};
+
+security = {
+  # preferred ciphering algorithms
+  # the first one of the list that an UE supports in chosen
+  # valid values: nea0, nea1, nea2, nea3
+  ciphering_algorithms = ( "nea0" );
+
+  # preferred integrity algorithms
+  # the first one of the list that an UE supports in chosen
+  # valid values: nia0, nia1, nia2, nia3
+  integrity_algorithms = ( "nia2", "nia0" );
+
+  # setting 'drb_ciphering' to "no" disables ciphering for DRBs, no matter
+  # what 'ciphering_algorithms' configures; same thing for 'drb_integrity'
+  drb_ciphering = "yes";
+  drb_integrity = "no";
+};
+
+log_config :
+{
+  global_log_level                      ="info";
+  hw_log_level                          ="info";
+  phy_log_level                         ="info";
+  mac_log_level                         ="info";
+  rlc_log_level                         ="info";
+  pdcp_log_level                        ="info";
+  rrc_log_level                         ="info";
+  ngap_log_level                        ="debug";
+  f1ap_log_level                        ="debug";
+};