add RRCSetupRequest(ue→gnb)

openair2/RRC/NR/MESSAGES/asn1_msg.c

@@ -43,6 +43,7 @@
 #include "asn1_msg.h"
 #include "RRC/NR/nr_rrc_extern.h"
 #include "NR_DL-CCCH-Message.h"
+#include "NR_UL-CCCH-Message.h"
 #include "NR_DL-DCCH-Message.h"
 #include "NR_RRCReject.h"
 #include "NR_RejectWaitTime.h"
@@ -1064,3 +1065,52 @@ uint16_t do_RRCReconfiguration(
 
     return((enc_rval.encoded+7)/8);
 }
+
+
+uint8_t do_RRCSetupRequest(uint8_t Mod_id, uint8_t *buffer,uint8_t *rv) {
+  asn_enc_rval_t enc_rval;
+  uint8_t buf[5],buf2=0;
+  NR_UL_CCCH_Message_t ul_ccch_msg;
+  NR_RRCSetupRequest_t *rrcSetupRequest;
+  memset((void *)&ul_ccch_msg,0,sizeof(NR_UL_CCCH_Message_t));
+  ul_ccch_msg.message.present           = NR_UL_CCCH_MessageType_PR_c1;
+  ul_ccch_msg.message.choice.c1->present = NR_UL_CCCH_MessageType__c1_PR_rrcSetupRequest;
+  rrcSetupRequest          = &ul_ccch_msg.message.choice.c1->choice.rrcSetupRequest;
+
+
+  if (1) {
+    rrcSetupRequest->rrcSetupRequest.ue_Identity.present = NR_InitialUE_Identity_PR_randomValue;
+    rrcSetupRequest->rrcSetupRequest.ue_Identity.choice.randomValue.size = 5;
+    rrcSetupRequest->rrcSetupRequest.ue_Identity.choice.randomValue.bits_unused = 0;
+    rrcSetupRequest->rrcSetupRequest.ue_Identity.choice.randomValue.buf = buf;
+    rrcSetupRequest->rrcSetupRequest.ue_Identity.choice.randomValue.buf[0] = rv[0];
+    rrcSetupRequest->rrcSetupRequest.ue_Identity.choice.randomValue.buf[1] = rv[1];
+    rrcSetupRequest->rrcSetupRequest.ue_Identity.choice.randomValue.buf[2] = rv[2];
+    rrcSetupRequest->rrcSetupRequest.ue_Identity.choice.randomValue.buf[3] = rv[3];
+    rrcSetupRequest->rrcSetupRequest.ue_Identity.choice.randomValue.buf[4] = rv[4];
+  } else {
+    rrcSetupRequest->rrcSetupRequest.ue_Identity.present = NR_InitialUE_Identity_PR_ng_5G_S_TMSI_Part1;
+    rrcSetupRequest->rrcSetupRequest.ue_Identity.choice.ng_5G_S_TMSI_Part1.size = 1;
+    rrcSetupRequest->rrcSetupRequest.ue_Identity.choice.ng_5G_S_TMSI_Part1.bits_unused = 0;
+    rrcSetupRequest->rrcSetupRequest.ue_Identity.choice.ng_5G_S_TMSI_Part1.buf = buf;
+    rrcSetupRequest->rrcSetupRequest.ue_Identity.choice.ng_5G_S_TMSI_Part1.buf[0] = 0x12;
+  }
+
+  rrcSetupRequest->rrcSetupRequest.establishmentCause = NR_EstablishmentCause_mo_Signalling; //EstablishmentCause_mo_Data;
+  rrcSetupRequest->rrcSetupRequest.spare.buf = &buf2;
+  rrcSetupRequest->rrcSetupRequest.spare.size=1;
+  rrcSetupRequest->rrcSetupRequest.spare.bits_unused = 7;
+
+  if ( LOG_DEBUGFLAG(DEBUG_ASN1) ) {
+    xer_fprint(stdout, &asn_DEF_NR_UL_CCCH_Message, (void *)&ul_ccch_msg);
+  }
+
+  enc_rval = uper_encode_to_buffer(&asn_DEF_NR_UL_CCCH_Message,
+                                   NULL,
+                                   (void *)&ul_ccch_msg,
+                                   buffer,
+                                   100);
+  AssertFatal (enc_rval.encoded > 0, "ASN1 message encoding failed (%s, %lu)!\n", enc_rval.failed_type->name, enc_rval.encoded);
+  LOG_D(RRC,"[UE] RRCSetupRequest Encoded %zd bits (%zd bytes)\n", enc_rval.encoded, (enc_rval.encoded+7)/8);
+  return((enc_rval.encoded+7)/8);
+}

openair2/RRC/NR_UE/rrc_UE.c

@@ -667,3 +667,39 @@ memset((void *)&ul_dcch_msg,0,sizeof(LTE_UL_DCCH_Message_t));
                  securityModeCommand->criticalExtensions.present);
 }
 
+//-----------------------------------------------------------------------------
+void rrc_ue_generate_RRCSetupRequest( const protocol_ctxt_t *const ctxt_pP, const uint8_t gNB_index ) {
+  uint8_t i=0,rv[6];
+
+  if(UE_rrc_inst[ctxt_pP->module_id].Srb0[gNB_index].Tx_buffer.payload_size ==0) {
+    // Get RRCConnectionRequest, fill random for now
+    // Generate random byte stream for contention resolution
+    for (i=0; i<6; i++) {
+#ifdef SMBV
+      // if SMBV is configured the contention resolution needs to be fix for the connection procedure to succeed
+      rv[i]=i;
+#else
+      rv[i]=taus()&0xff;
+#endif
+      LOG_T(RRC,"%x.",rv[i]);
+    }
+
+    LOG_T(RRC,"\n");
+    UE_rrc_inst[ctxt_pP->module_id].Srb0[gNB_index].Tx_buffer.payload_size =
+      do_RRCSetupRequest(
+        ctxt_pP->module_id,
+        (uint8_t *)UE_rrc_inst[ctxt_pP->module_id].Srb0[gNB_index].Tx_buffer.Payload,
+        rv);
+    LOG_I(RRC,"[UE %d] : Frame %d, Logical Channel UL-CCCH (SRB0), Generating RRCSetupRequest (bytes %d, eNB %d)\n",
+          ctxt_pP->module_id, ctxt_pP->frame, UE_rrc_inst[ctxt_pP->module_id].Srb0[gNB_index].Tx_buffer.payload_size, gNB_index);
+
+    for (i=0; i<UE_rrc_inst[ctxt_pP->module_id].Srb0[gNB_index].Tx_buffer.payload_size; i++) {
+      LOG_T(RRC,"%x.",UE_rrc_inst[ctxt_pP->module_id].Srb0[gNB_index].Tx_buffer.Payload[i]);
+    }
+
+    LOG_T(RRC,"\n");
+    /*UE_rrc_inst[ue_mod_idP].Srb0[Idx].Tx_buffer.Payload[i] = taus()&0xff;
+    UE_rrc_inst[ue_mod_idP].Srb0[Idx].Tx_buffer.payload_size =i; */
+  }
+}
+