Changes to pull SRS channel estimates into T_tracer

2026-07-19 07:30:31 +00:00 · 2025-08-14 09:32:34 +00:00
6 changed files with 451 additions and 5 deletions
--- a/ci-scripts/conf_files/gnb.sa.band78.273prb.rfsim.4x4.conf
+++ b/ci-scripts/conf_files/gnb.sa.band78.273prb.rfsim.4x4.conf
@@ -0,0 +1,247 @@
+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 = 208; mnc = 99; mnc_length = 2; snssaiList = ({ sst = 1 }) });
+
+    nr_cellid = 12345678L;
+
+    ////////// Physical parameters:
+
+    pdsch_AntennaPorts_XP                                     = 2;
+    pdsch_AntennaPorts_N1                                     = 2;
+    pusch_AntennaPorts                                        = 4;
+    do_CSIRS                                                  = 1;
+    do_SRS                                                    = 1;
+    min_rxtxtime = 5;
+
+    servingCellConfigCommon = (
+    {
+ #spCellConfigCommon
+
+      physCellId                                                    = 0;
+
+#  downlinkConfigCommon
+    #frequencyInfoDL
+      # this is 3300.60 MHz + 53*12*30e-3 MHz = 3319.68
+      absoluteFrequencySSB                                             = 630048;
+      dl_frequencyBand                                                 = 78;
+      # this is 3300.60 MHz
+      dl_absoluteFrequencyPointA                                       = 626772;
+      #scs-SpecificCarrierList
+        dl_offstToCarrier                                              = 0;
+# subcarrierSpacing
+# 0=kHz15, 1=kHz30, 2=kHz60, 3=kHz120
+        dl_subcarrierSpacing                                           = 1;
+        dl_carrierBandwidth                                            = 273;
+     #initialDownlinkBWP
+      #genericParameters
+        # this is RBstart=27,L=48 (275*(L-1))+RBstart
+        initialDLBWPlocationAndBandwidth                               = 1099; # 6366 12925 12956 28875 12952
+# subcarrierSpacing
+# 0=kHz15, 1=kHz30, 2=kHz60, 3=kHz120
+        initialDLBWPsubcarrierSpacing                                  = 1;
+      #pdcch-ConfigCommon
+        initialDLBWPcontrolResourceSetZero                             = 12;
+        initialDLBWPsearchSpaceZero                                    = 0;
+
+  #uplinkConfigCommon
+     #frequencyInfoUL
+      ul_frequencyBand                                              = 78;
+      #scs-SpecificCarrierList
+      ul_offstToCarrier                                             = 0;
+# subcarrierSpacing
+# 0=kHz15, 1=kHz30, 2=kHz60, 3=kHz120
+      ul_subcarrierSpacing                                          = 1;
+      ul_carrierBandwidth                                           = 273;
+      pMax                                                          = 20;
+     #initialUplinkBWP
+      #genericParameters
+        initialULBWPlocationAndBandwidth                            = 1099;
+# subcarrierSpacing
+# 0=kHz15, 1=kHz30, 2=kHz60, 3=kHz120
+        initialULBWPsubcarrierSpacing                               = 1;
+      #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                               = -96;
+#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                                           = 5;
+#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                                      = 1,
+# 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;
+
+      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                                             = 1;
+
+
+  #tdd-UL-DL-ConfigurationCommon
+# subcarrierSpacing
+# 0=kHz15, 1=kHz30, 2=kHz60, 3=kHz120
+      referenceSubcarrierSpacing                                    = 1;
+      # pattern1
+      # dl_UL_TransmissionPeriodicity
+      # 0=ms0p5, 1=ms0p625, 2=ms1, 3=ms1p25, 4=ms2, 5=ms2p5, 6=ms5, 7=ms10
+      dl_UL_TransmissionPeriodicity                                 = 5;
+      nrofDownlinkSlots                                             = 3;
+      nrofDownlinkSymbols                                           = 6;
+      nrofUplinkSlots                                               = 1;
+      nrofUplinkSymbols                                             = 4;
+
+      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 = "192.168.71.132"; });
+
+
+    NETWORK_INTERFACES :
+    {
+        GNB_IPV4_ADDRESS_FOR_NG_AMF              = "192.168.71.140/24";
+        GNB_IPV4_ADDRESS_FOR_NGU                 = "192.168.71.140/24";
+        GNB_PORT_FOR_S1U                         = 2152; # Spec 2152
+    };
+
+  }
+);
+
+MACRLCs = (
+{
+  num_cc                      = 1;
+  tr_s_preference             = "local_L1";
+  tr_n_preference             = "local_RRC";
+}
+);
+
+L1s = (
+{
+  num_cc                = 1;
+  tr_n_preference       = "local_mac";
+  prach_dtx_threshold   = 120;
+  tx_amp_backoff_dB = 30;
+}
+);
+
+RUs = (
+{
+  local_rf       = "yes"
+  nb_tx          = 4
+  nb_rx          = 4
+  att_tx         = 0
+  att_rx         = 0;
+  bands          = [78];
+  max_pdschReferenceSignalPower = -27;
+  max_rxgain                    = 75;
+  eNB_instances  = [0];
+  #clock_src = "internal";
+  sdr_addrs = "mgmt_addr=192.168.10.2,addr=192.168.10.2,clock_source=internal,time_source=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                        ="info";
+};
--- a/ci-scripts/yaml_files/5g_rfsimulator_4x4/.env
+++ b/ci-scripts/yaml_files/5g_rfsimulator_4x4/.env
@@ -0,0 +1,2 @@
+GNB_REGISTRY=""
+GNB_TAG="latest"
--- a/ci-scripts/yaml_files/5g_rfsimulator_4x4/docker-compose.yaml
+++ b/ci-scripts/yaml_files/5g_rfsimulator_4x4/docker-compose.yaml
@@ -0,0 +1,162 @@
+services:
+    mysql:
+        container_name: "rfsim5g-mysql"
+        image: mysql:8.0
+        init: true
+        volumes:
+            - ../5g_rfsimulator/oai_db.sql:/docker-entrypoint-initdb.d/oai_db.sql
+            - ../5g_rfsimulator/mysql-healthcheck.sh:/tmp/mysql-healthcheck.sh
+        environment:
+            - TZ=Europe/Paris
+            - MYSQL_DATABASE=oai_db
+            - MYSQL_USER=test
+            - MYSQL_PASSWORD=test
+            - MYSQL_ROOT_PASSWORD=linux
+        healthcheck:
+            test: /bin/bash -c "/tmp/mysql-healthcheck.sh"
+            start_period: 10s
+            start_interval: 500ms
+            interval: 10s
+            timeout: 5s
+            retries: 30
+        networks:
+            public_net:
+                ipv4_address: 192.168.71.131
+    oai-amf:
+        container_name: "rfsim5g-oai-amf"
+        image: oaisoftwarealliance/oai-amf:v2.1.9
+        environment:
+            - TZ=Europe/paris
+        volumes:
+            - ../5g_rfsimulator/mini_nonrf_config.yaml:/openair-amf/etc/config.yaml
+        depends_on:
+            - mysql
+        networks:
+            public_net:
+                ipv4_address: 192.168.71.132
+    oai-smf:
+        container_name: "rfsim5g-oai-smf"
+        image: oaisoftwarealliance/oai-smf:v2.1.9
+        environment:
+            - TZ=Europe/Paris
+        volumes:
+            - ../5g_rfsimulator/mini_nonrf_config.yaml:/openair-smf/etc/config.yaml
+        depends_on:
+            - oai-amf
+        networks:
+            public_net:
+                ipv4_address: 192.168.71.133
+    oai-upf:
+        container_name: "rfsim5g-oai-upf"
+        image: oaisoftwarealliance/oai-upf:v2.1.9
+        init: true
+        environment:
+            - TZ=Europe/Paris
+        volumes:
+            - ../5g_rfsimulator/mini_nonrf_config.yaml:/openair-upf/etc/config.yaml
+        depends_on:
+            - oai-smf
+        cap_add:
+            - NET_ADMIN
+            - SYS_ADMIN
+        cap_drop:
+            - ALL
+        privileged: true
+        networks:
+            public_net:
+                ipv4_address: 192.168.71.134
+                interface_name: eth0
+            traffic_net:
+                ipv4_address: 192.168.72.134
+                interface_name: eth1
+    oai-ext-dn:
+        privileged: true
+        container_name: rfsim5g-oai-ext-dn
+        image: oaisoftwarealliance/trf-gen-cn5g:focal
+        init: true
+        entrypoint: /bin/bash -c \
+              "iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE;"\
+              "ip route add 12.1.1.0/24 via 192.168.72.134 dev eth0; sleep infinity"
+        depends_on:
+            - oai-upf
+        networks:
+            traffic_net:
+                ipv4_address: 192.168.72.135
+        healthcheck:
+            test: /bin/bash -c "ping -c 2 192.168.72.134"
+            start_period: 10s
+            start_interval: 500ms
+            interval: 10s
+            timeout: 5s
+            retries: 5
+    oai-gnb:
+        image: ${GNB_REGISTRY-oaisoftwarealliance/}${GNB_IMG:-oai-gnb}:${GNB_TAG:-develop}
+        container_name: rfsim5g-oai-gnb
+        cap_drop:
+            - ALL
+        cap_add:
+            - SYS_NICE
+        environment:
+            USE_ADDITIONAL_OPTIONS: -q --rfsim --log_config.global_log_options level,nocolor,utc_time --T_stdout 2
+            ASAN_OPTIONS: detect_leaks=0
+        depends_on:
+            - oai-ext-dn
+        networks:
+            public_net:
+                ipv4_address: 192.168.71.140
+        volumes:
+            - ../../conf_files/gnb.sa.band78.273prb.rfsim.4x4.conf:/opt/oai-gnb/etc/gnb.conf
+        healthcheck:
+            test: /bin/bash -c "pgrep nr-softmodem"
+            start_period: 10s
+            start_interval: 500ms
+            interval: 10s
+            timeout: 5s
+            retries: 5
+
+    oai-nr-ue:
+        image: ${UE_REGISTRY-oaisoftwarealliance/}${NRUE_IMG:-oai-nr-ue}:${UE_TAG:-develop}
+        container_name: rfsim5g-oai-nr-ue
+        cap_drop:
+            - ALL
+        cap_add:
+            - NET_ADMIN  # for interface bringup
+            - NET_RAW    # for ping
+            - SYS_NICE
+        environment:
+            USE_ADDITIONAL_OPTIONS: --rfsim -r 273 --numerology 1 --band 78 -C 3450720000 --ssb 1518 --ue-nb-ant-tx 2 --uicc0.imsi 208990100001100 --ue-nb-ant-rx 4 --uecap_file /opt/oai-nr-ue/etc/uecap.xml --rfsimulator.serveraddr 192.168.71.140 --log_config.global_log_options level,nocolor,utc_time
+        depends_on:
+            - oai-gnb
+        networks:
+            public_net:
+                ipv4_address: 192.168.71.150
+        devices:
+             - /dev/net/tun:/dev/net/tun
+        volumes:
+            - ../../../targets/PROJECTS/GENERIC-NR-5GC/CONF/uecap_ports2.xml:/opt/oai-nr-ue/etc/uecap.xml
+            - ../../conf_files/nrue.uicc.conf:/opt/oai-nr-ue/etc/nr-ue.conf
+        healthcheck:
+            test: /bin/bash -c "pgrep nr-uesoftmodem"
+            start_period: 10s
+            start_interval: 500ms
+            interval: 10s
+            timeout: 5s
+            retries: 5
+
+networks:
+    public_net:
+        driver: bridge
+        name: rfsim5g-oai-public-net
+        ipam:
+            config:
+                - subnet: 192.168.71.128/26
+        driver_opts:
+            com.docker.network.bridge.name: "rfsim5g-public"
+    traffic_net:
+        driver: bridge
+        name: rfsim5g-oai-traffic-net
+        ipam:
+            config:
+                - subnet: 192.168.72.128/26
+        driver_opts:
+            com.docker.network.bridge.name: "rfsim5g-traffic"
--- a/common/utils/T/T_messages.txt
+++ b/common/utils/T/T_messages.txt
@@ -147,6 +147,10 @@ ID = GNB_PHY_DL_OUTPUT_SIGNAL
    DESC = gNodeB output data in the freq domain for slots
    GROUP = ALL:PHY:GRAPHIC:HEAVY:GNB
    FORMAT = int,gNB_ID : int,frame : int,slot : int,antenna : buffer,txdata
+ID = GNB_MAC_UL_FREQ_CHANNEL_ESTIMATE
+    DESC = SRS channel estimation as signalled by FAPI
+    GROUP = ALL:MAC:GNB
+    FORMAT = int,gNB_ID : int,rnti : int,frame : int,subframe : int,rx_antennas : int,tx_antennas : buffer,chest_t

 #MAC logs
 ID = ENB_MAC_UE_DL_SDU
--- a/docker/Dockerfile.gNB.ubuntu22
+++ b/docker/Dockerfile.gNB.ubuntu22
@@ -35,6 +35,7 @@ FROM ubuntu:jammy AS oai-gnb
 ARG BUILD_OPTION
 ENV DEBIAN_FRONTEND=noninteractive
 ENV TZ=Europe/Paris
+ENV PATH="$PATH:/opt/oai-gnb/bin"

 RUN apt-get update && \
    DEBIAN_FRONTEND=noninteractive apt-get upgrade --yes && \
@@ -92,7 +93,10 @@ RUN case "${TARGETPLATFORM}" in \

 WORKDIR /opt/oai-gnb/bin
 COPY --from=gnb-build \
-    /oai-ran/cmake_targets/ran_build/build/nr-softmodem ./
+    /oai-ran/cmake_targets/ran_build/build/nr-softmodem ./ \
+    /oai-ran/cmake_targets/ran_build/build/common/utils/T/tracer/record ./ \
+    /oai-ran/cmake_targets/ran_build/build/common/utils/T/tracer/extract ./
+
 COPY ./docker/scripts/gnb_entrypoint.sh ./entrypoint.sh
 COPY ./docker/scripts/check-prach-io.sh ./check-prach-io.sh

@@ -138,6 +142,7 @@ RUN /bin/bash -c "ln -s /usr/local/lib/liboai_usrpdevif.so /usr/local/lib/liboai
        /usr/local/lib/libuhd.so.4.8.0

 WORKDIR /opt/oai-gnb
+COPY --from=gnb-build /oai-ran/common/utils/T/T_messages.txt ./
 #EXPOSE 2152/udp  # S1U, GTP/UDP
 #EXPOSE 22100/tcp # ?
 #EXPOSE 36412/udp # S1C, SCTP/UDP
--- a/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_ulsch.c
+++ b/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_ulsch.c
@@ -37,6 +37,7 @@
 #include "LAYER2/nr_rlc/nr_rlc_oai_api.h"

 //#define SRS_IND_DEBUG
+//#define SRS_IND_DEBUG_VERBOSE

 int get_ul_tda(gNB_MAC_INST *nrmac, int frame, int slot)
 {
@@ -1036,6 +1037,14 @@ static uint8_t get_max_tpmi(const NR_PUSCH_Config_t *pusch_Config,
  long *ul_FullPowerTransmission = pusch_Config->ext1 ? pusch_Config->ext1->ul_FullPowerTransmission_r16 : NULL;
  long *codebookSubset = pusch_Config->codebookSubset;

+#ifdef SRS_IND_DEBUG
+  LOG_I(NR_MAC,"get_max_tpmi %p, %lu, %u, %u %u %lu %lu %u\n",
+		  pusch_Config,
+		  *pusch_Config->txConfig,NR_PUSCH_Config__txConfig_nonCodebook,
+		  num_ue_srs_ports,*nrOfLayers, max_rank,
+		  *codebookSubset,NR_PUSCH_Config__codebookSubset_nonCoherent);
+#endif
+
  if (num_ue_srs_ports == 2) {

    if (max_rank == 1) {
@@ -1333,7 +1342,6 @@ static int nr_srs_tpmi_estimation(const NR_PUSCH_Config_t *pusch_Config,
    LOG_D(NR_MAC, "TPMI computation for ul_ri %i is not implemented yet!\n", ul_ri);
    return 0;
  }
-
  uint8_t tpmi_sel = 0;
  const uint8_t nrOfLayers = ul_ri + 1;
  int16_t precoded_channel_matrix_re[num_prgs * num_gnb_antenna_elements];
@@ -1345,6 +1353,10 @@ static int nr_srs_tpmi_estimation(const NR_PUSCH_Config_t *pusch_Config,

  uint8_t max_tpmi = get_max_tpmi(pusch_Config, num_ue_srs_ports, &nrOfLayers, &additional_max_tpmi);
  uint8_t end_tpmi_loop = additional_max_tpmi > max_tpmi ? additional_max_tpmi : max_tpmi;
+#ifdef SRS_IND_DEBUG
+  LOG_I(NR_MAC, "Running TPMI computations with: %ld %u %u %u %u %u %u %u %u\n",
+		 transform_precoding, normalized_iq_representation, num_gnb_antenna_elements, num_ue_srs_ports, prg_size, num_prgs, ul_ri, max_tpmi, end_tpmi_loop);
+#endif

  //                      channel_matrix                          x   precoder_matrix
  // [ (gI=0,uI=0) (gI=0,uI=1) ... (gI=0,uI=num_ue_srs_ports-1) ] x   [uI=0]
@@ -1372,14 +1384,14 @@ static int nr_srs_tpmi_estimation(const NR_PUSCH_Config_t *pusch_Config,
            precoded_channel_matrix_re[index_gI_pI] += h_times_w.r;
            precoded_channel_matrix_im[index_gI_pI] += h_times_w.i;

-#ifdef SRS_IND_DEBUG
+#ifdef SRS_IND_DEBUG_VERBOSE
            LOG_I(NR_MAC, "(pI %i, gI %i,  uI %i, layer_idx %i) w = %c, channel_matrix --> real %i, imag %i\n",
                  pI, gI, uI, layer_idx, w, channel_matrix16[index].r, channel_matrix16[index].i);
 #endif
          }
        }

-#ifdef SRS_IND_DEBUG
+#ifdef SRS_IND_DEBUG_VERBOSE
        LOG_I(NR_MAC, "(pI %i, gI %i) precoded_channel_coef --> real %i, imag %i\n",
              pI, gI, precoded_channel_matrix_re[index_gI_pI], precoded_channel_matrix_im[index_gI_pI]);
 #endif
@@ -1501,6 +1513,8 @@ void handle_nr_srs_measurements(const module_id_t module_id,
      LOG_I(NR_MAC, "nr_srs_channel_iq_matrix.num_ue_srs_ports = %i\n", nr_srs_channel_iq_matrix.num_ue_srs_ports);
      LOG_I(NR_MAC, "nr_srs_channel_iq_matrix.prg_size = %i\n", nr_srs_channel_iq_matrix.prg_size);
      LOG_I(NR_MAC, "nr_srs_channel_iq_matrix.num_prgs = %i\n", nr_srs_channel_iq_matrix.num_prgs);
+#endif
+#ifdef SRS_IND_DEBUG_VERBOSE
      c16_t *channel_matrix16 = (c16_t *)nr_srs_channel_iq_matrix.channel_matrix;
      c8_t *channel_matrix8 = (c8_t *)nr_srs_channel_iq_matrix.channel_matrix;
      for (int uI = 0; uI < nr_srs_channel_iq_matrix.num_ue_srs_ports; uI++) {
@@ -1518,6 +1532,19 @@ void handle_nr_srs_measurements(const module_id_t module_id,
        }
      }
 #endif
+      T(T_GNB_MAC_UL_FREQ_CHANNEL_ESTIMATE,
+        T_INT(0),
+        T_INT(srs_ind->rnti),
+        T_INT(frame),
+        T_INT(slot),
+        T_INT(nr_srs_channel_iq_matrix.num_gnb_antenna_elements),
+        T_INT(nr_srs_channel_iq_matrix.num_ue_srs_ports),
+        T_BUFFER(nr_srs_channel_iq_matrix.channel_matrix, 
+	        nr_srs_channel_iq_matrix.num_gnb_antenna_elements
+	        *nr_srs_channel_iq_matrix.num_ue_srs_ports
+	        *nr_srs_channel_iq_matrix.num_prgs
+	        *(nr_srs_channel_iq_matrix.normalized_iq_representation==0?2:4))
+       );

      NR_UE_sched_ctrl_t *sched_ctrl = &UE->UE_sched_ctrl;
      NR_UE_UL_BWP_t *current_BWP = &UE->current_UL_BWP;
@@ -1538,7 +1565,6 @@ void handle_nr_srs_measurements(const module_id_t module_id,
                                                             nr_srs_channel_iq_matrix.num_prgs,
                                                             sched_ctrl->srs_feedback.ul_ri);
      stop_meas(&nr_mac->nr_srs_tpmi_computation_timer);
-
      sprintf(stats->srs_stats, "UL-RI %d, TPMI %d", sched_ctrl->srs_feedback.ul_ri + 1, sched_ctrl->srs_feedback.tpmi);

      break;