standalone RRU executable initial testing version

cmake_targets/CMakeLists.txt

@@ -2601,6 +2601,31 @@ target_link_libraries(du_test
   ${PROTO_AGENT_LIB} pthread UTIL ${T_LIB} dl ${ITTI_LIB}
 )
 
+add_executable(oairu
+  ${OPENAIR_TARGETS}/RT/USER/lte-ru.c
+  ${OPENAIR_TARGETS}/RT/USER/ru_control.c
+  ${OPENAIR_TARGETS}/RT/USER/rt_wrapper.c
+  ${OPENAIR_TARGETS}/ARCH/COMMON/common_lib.c
+  ${OPENAIR_TARGETS}/ARCH/COMMON/record_player.c
+  ${OPENAIR_DIR}/executables/softmodem-common.c
+  ${OPENAIR_DIR}/openair1/SCHED/phy_procedures_lte_common.c
+  ${OPENAIR_DIR}/common/utils/threadPool/thread-pool.c
+  ${OPENAIR_DIR}/executables/main_ru.c
+  ${T_SOURCE}
+  ${OPENAIR_DIR}/common/utils/LOG/log.c
+  ${CONFIG_SOURCES}
+  ${OPENAIR_DIR}/common/utils/utils.c
+  ${OPENAIR_DIR}/common/utils/system.c
+  ${SHLIB_LOADER_SOURCES}
+)
+target_link_libraries (oairu
+  -Wl,--start-group
+  SCHED_RU_LIB 
+  PHY_COMMON PHY_RU 
+  -Wl,--end-group z dl)
+  
+target_link_libraries (oairu pthread m ${CONFIG_LIB} rt ${CMAKE_DL_LIBS} ${T_LIB})
+
 # lte-uesoftmodem is  UE implementation
 #######################################
 

cmake_targets/build_oai

@@ -100,6 +100,8 @@ Options
   Makes the NR softmodem
 --nrUE
   Makes the NR UE softmodem
+--RU
+  Makes the OAI RRU (without full stack) 
 --UE
    Makes the UE specific parts (ue_ip, usim, nvram) from the given configuration file
 --UE-conf-nvram [configuration file]
@@ -242,6 +244,10 @@ function main() {
             NR="True"
             echo_info "Will compile gNB"
             shift;;
+       --RU)
+	    RU=1
+            echo_info "Will compile RRU"
+	    shift;;
        -a | --agent)
             echo_info "FlexRAN support is always compiled into the eNB"
             shift;;
@@ -443,7 +449,7 @@ function main() {
   ########################################################
   # to be discussed
   
-  if [ "$eNB" = "1" -o "$gNB" = "1" ] ; then
+  if [ "$eNB" = "1" -o "$gNB" = "1" =o "$RU" = "1"] ; then
       if [ "$HW" = "None" -a  "$TP" = "None" ] ; then
 	      echo_info "No local radio head and no transport protocol selected"
       fi
@@ -574,7 +580,7 @@ function main() {
   config_libconfig_shlib=params_libconfig
   
   # first generate the CMakefile in the right directory
-  if [ "$eNB" = "1" -o "$UE" = "1" -o "$gNB" = "1" -o "$nrUE" = "1" -o "$HW" = "EXMIMO" ] ; then
+  if [ "$eNB" = "1" -o "$UE" = "1" -o "$gNB" = "1" -o "$RU" = "1" -o "$nrUE" = "1" -o "$HW" = "EXMIMO" ] ; then
 
     # softmodem compilation
 
@@ -609,6 +615,9 @@ function main() {
     if [ "$gNB" = "1" ] ; then
       execlist="$execlist nr-softmodem"
     fi
+    if [ "$RU" = "1" ] ; then
+      execlist="$execlist oairu"
+    fi
     if [ "$UE" = 1 ] ; then
       execlist="$execlist lte-uesoftmodem"
     fi
@@ -820,7 +829,7 @@ function main() {
   ####################################################
   # Build RF device and transport protocol libraries #
   ####################################################
-  if [ "$eNB" = "1" -o "$UE" = "1" -o "$gNB" = "1" -o "$nrUE" = "1" -o "$HWLAT" = "1" ] ; then
+  if [ "$eNB" = "1" -o "$UE" = "1" -o "$gNB" = "1" -o "$RU" = "1" -o "$nrUE" = "1" -o "$HWLAT" = "1" ] ; then
 
       # build RF device libraries
       if [ "$HW" != "None" ] ; then

openair1/PHY/INIT/init_top.c

@@ -73,7 +73,6 @@ void init_lte_top(LTE_DL_FRAME_PARMS *frame_parms) {
   init_unscrambling_lut();
   init_scrambling_lut();
   //set_taus_seed(1328);
-  init_sss();
 }
 
 void free_lte_top(void) {

openair1/PHY/INIT/lte_init.c

@@ -384,6 +384,7 @@ int phy_init_lte_eNB(PHY_VARS_eNB *eNB,
   lte_gold (fp, eNB->lte_gold_table, fp->Nid_cell);
   generate_pcfich_reg_mapping (fp);
   generate_phich_reg_mapping (fp);
+  init_sss();
 
   for (UE_id = 0; UE_id < NUMBER_OF_UE_MAX; UE_id++) {
     eNB->first_run_timing_advance[UE_id] =

openair1/PHY/INIT/lte_init_ue.c

@@ -629,6 +629,7 @@ int init_lte_ue_signal(PHY_VARS_UE *ue,
   init_frame_parms(&ue->frame_parms,1);
   lte_sync_time_init(&ue->frame_parms);
   init_lte_top(&ue->frame_parms);
+  init_sss();
   init_7_5KHz();
   init_ul_hopping(&ue->frame_parms);
   // many memory allocation sizes are hard coded

targets/RT/USER/lte-ru.c

@@ -2677,9 +2677,38 @@ void set_function_spec_param(RU_t *ru) {
   } // switch on interface type
 }
 
-//extern void RCconfig_RU(void);
+void init_RU0(RU_t *ru,int ru_id,char *rf_config_file, int send_dmrssync) {
+
+  ru->rf_config_file = rf_config_file;
+  ru->idx            = ru_id;
+  ru->ts_offset      = 0;
+  
+  if (ru->is_slave == 1) {
+    ru->in_synch = 0;
+    ru->generate_dmrs_sync = 0;
+  } else {
+    ru->in_synch = 1;
+    ru->generate_dmrs_sync = send_dmrssync;
+  }
+  
+  ru->cmd = EMPTY;
+  ru->south_out_cnt = 0;
+  // use eNB_list[0] as a reference for RU frame parameters
+  // NOTE: multiple CC_id are not handled here yet!
+  
+  //ru->generate_dmrs_sync = (ru->is_slave == 0) ? 1 : 0;
+  if ((ru->is_slave == 0) && (ru->ota_sync_enable == 1))
+    ru->generate_dmrs_sync = 1;
+  else
+    ru->generate_dmrs_sync = 0;
+  
+  ru->wakeup_L1_sleeptime = 2000;
+  ru->wakeup_L1_sleep_cnt_max  = 3;
   
 
+}
+
+// This part if on eNB side 
 void init_RU(char *rf_config_file, int send_dmrssync) {
   int ru_id, i, CC_id;
   RU_t *ru;
@@ -2699,38 +2728,14 @@ void init_RU(char *rf_config_file, int send_dmrssync) {
   for (ru_id=0; ru_id<RC.nb_RU; ru_id++) {
     LOG_D(PHY,"Process RC.ru[%d]\n",ru_id);
     ru                 = RC.ru[ru_id];
-    ru->rf_config_file = rf_config_file;
+    init_RU0(ru,ru_id,rf_config_file,send_dmrssync);
-    ru->idx            = ru_id;
-    ru->ts_offset      = 0;
-
-    if (ru->is_slave == 1) {
-      ru->in_synch = 0;
-      ru->generate_dmrs_sync = 0;
-    } else {
-      ru->in_synch = 1;
-      ru->generate_dmrs_sync = send_dmrssync;
-    }
-
-    ru->cmd = EMPTY;
-    ru->south_out_cnt = 0;
-    // use eNB_list[0] as a reference for RU frame parameters
-    // NOTE: multiple CC_id are not handled here yet!
-
-    //ru->generate_dmrs_sync = (ru->is_slave == 0) ? 1 : 0;
-    if ((ru->is_slave == 0) && (ru->ota_sync_enable == 1))
-      ru->generate_dmrs_sync = 1;
-    else
-      ru->generate_dmrs_sync = 0;
-
-    ru->wakeup_L1_sleeptime = 2000;
-    ru->wakeup_L1_sleep_cnt_max  = 3;
 
     if (ru->num_eNB > 0) {
       LOG_D(PHY, "%s() RC.ru[%d].num_eNB:%d ru->eNB_list[0]:%p RC.eNB[0][0]:%p rf_config_file:%s\n", __FUNCTION__, ru_id, ru->num_eNB, ru->eNB_list[0], RC.eNB[0][0], ru->rf_config_file);
       
       if (ru->eNB_list[0] == 0) {
-        LOG_E(PHY,"%s() DJP - ru->eNB_list ru->num_eNB are not initialized - so do it manually\n", __FUNCTION__);
+	LOG_E(PHY,"%s() DJP - ru->eNB_list ru->num_eNB are not initialized - so do it manually\n", __FUNCTION__);
-        ru->eNB_list[0] = RC.eNB[0][0];
+	ru->eNB_list[0] = RC.eNB[0][0];
         ru->num_eNB=1;
         //
         // DJP - feptx_prec() / feptx_ofdm() parses the eNB_list (based on num_eNB) and copies the txdata_F to txdata in RU