Introduce triggering of PDCP and RLC configuration for the list of added DRBs

-Upon reception of SgNB Addition Request from the eNB, the gNB configures pdcp and rlc entities for the list of DRBs provided from the eNB

openair2/LAYER2/nr_rlc/nr_rlc_entity_am.c

@@ -110,6 +110,7 @@ static void consider_retransmission(nr_rlc_entity_am_t *entity,
    * for the RLC code to keep going with this segment (we only remove
    * a segment that was ACKed)
    */ 
+  LOG_D(RLC, "RLC segment to be added at the ReTx list \n"); 
   nr_rlc_sdu_segment_list_append(&entity->retransmit_list,
                                  &entity->retransmit_end,
                                  cur);
@@ -1588,6 +1589,8 @@ void nr_rlc_entity_am_recv_sdu(nr_rlc_entity_t *_entity,
 
   sdu = nr_rlc_new_sdu(buffer, size, sdu_id);
 
+  LOG_I(RLC, "Created new RLC SDU and append it to the RLC list \n");
+
   nr_rlc_sdu_segment_list_append(&entity->tx_list, &entity->tx_end, sdu);
 }
 

openair2/RRC/NR/nr_rrc_proto.h

@@ -82,7 +82,7 @@ void fill_default_reconfig(NR_ServingCellConfigCommon_t *servingcellconfigcommon
 			   int n_physical_antenna_ports,
 			   int initial_csi_index);
 
-void fill_default_rbconfig(NR_RadioBearerConfig_t *rbconfig);
+void fill_default_rbconfig(NR_RadioBearerConfig_t *rbconfig, long eps_BearerIdentity, long drb_Identity);
 
 int generate_CG_Config(gNB_RRC_INST *rrc, 
 		       NR_CG_Config_t *cg_Config,

openair2/RRC/NR/rrc_gNB_nsa.c

@@ -36,9 +36,32 @@
 //#include "NR_UE-CapabilityRAT-ContainerList.h"
 #include "LTE_UE-CapabilityRAT-ContainerList.h"
 #include "NR_CG-Config.h"
+//#include "NR_SRB-ToAddModList.h"
 #include "openair2/LAYER2/NR_MAC_gNB/mac_proto.h"
 #include "openair2/RRC/LTE/rrc_eNB_GTPV1U.h"
 
+extern boolean_t nr_rrc_pdcp_config_asn1_req(
+    const protocol_ctxt_t *const  ctxt_pP,
+    NR_SRB_ToAddModList_t  *const srb2add_list,
+    NR_DRB_ToAddModList_t  *const drb2add_list,
+    NR_DRB_ToReleaseList_t *const drb2release_list,
+    const uint8_t                   security_modeP,
+    uint8_t                  *const kRRCenc,
+    uint8_t                  *const kRRCint,
+    uint8_t                  *const kUPenc
+  #if (LTE_RRC_VERSION >= MAKE_VERSION(9, 0, 0))
+    ,LTE_PMCH_InfoList_r9_t  *pmch_InfoList_r9
+  #endif
+    ,rb_id_t                 *const defaultDRB,
+    struct NR_CellGroupConfig__rlc_BearerToAddModList *rlc_bearer2add_list);
+
+extern rlc_op_status_t nr_rrc_rlc_config_asn1_req (const protocol_ctxt_t   * const ctxt_pP,
+    const NR_SRB_ToAddModList_t   * const srb2add_listP,
+    const NR_DRB_ToAddModList_t   * const drb2add_listP,
+    const NR_DRB_ToReleaseList_t  * const drb2release_listP,
+    const LTE_PMCH_InfoList_r9_t * const pmch_InfoList_r9_pP,
+    struct NR_CellGroupConfig__rlc_BearerToAddModList *rlc_bearer2add_list);
+
 void rrc_parse_ue_capabilities(gNB_RRC_INST *rrc, LTE_UE_CapabilityRAT_ContainerList_t *UE_CapabilityRAT_ContainerList, x2ap_ENDC_sgnb_addition_req_t *m) {
 
   struct rrc_gNB_ue_context_s        *ue_context_p = NULL;
@@ -132,8 +155,13 @@ void rrc_add_nsa_user(gNB_RRC_INST *rrc,struct rrc_gNB_ue_context_s *ue_context_
 			carrier->initial_csi_index[rrc->Nb_ue]);
 
   ue_context_p->ue_context.rb_config = calloc(1,sizeof(NR_RRCReconfiguration_t));
+  //NR_CellGroupConfig_t               *secondaryCellGroup = ue_context_p->ue_context.secondaryCellGroup;
+  //secondaryCellGroup->rlc_BearerToAddModList->list.array[0]->rlc_Config
 
-  fill_default_rbconfig(ue_context_p->ue_context.rb_config);
+  if(m!=NULL)
+    fill_default_rbconfig(ue_context_p->ue_context.rb_config, m->e_rabs_tobeadded[0].e_rab_id, m->e_rabs_tobeadded[0].drb_ID);
+  else
+    fill_default_rbconfig(ue_context_p->ue_context.rb_config, 5, 1);
   ue_context_p->ue_id_rnti = ue_context_p->ue_context.secondaryCellGroup->spCellConfig->reconfigurationWithSync->newUE_Identity;
   NR_CG_Config_t *CG_Config = calloc(1,sizeof(*CG_Config));
   memset((void*)CG_Config,0,sizeof(*CG_Config));
@@ -232,6 +260,27 @@ void rrc_add_nsa_user(gNB_RRC_INST *rrc,struct rrc_gNB_ue_context_s *ue_context_
 			 1, // add_ue flag
 			 ue_context_p->ue_id_rnti,
 			 ue_context_p->ue_context.secondaryCellGroup);
+
+  nr_rrc_pdcp_config_asn1_req(
+    &ctxt,
+    (NR_SRB_ToAddModList_t *) NULL,
+    ue_context_p->ue_context.rb_config->drb_ToAddModList ,
+    ue_context_p->ue_context.rb_config->drb_ToReleaseList,
+    0xff,
+    NULL,
+    NULL,
+    NULL,
+    NULL,
+    NULL,
+    ue_context_p->ue_context.secondaryCellGroup->rlc_BearerToAddModList);
+
+  nr_rrc_rlc_config_asn1_req (&ctxt,
+      (NR_SRB_ToAddModList_t *) NULL,
+      ue_context_p->ue_context.rb_config->drb_ToAddModList,
+      ue_context_p->ue_context.rb_config->drb_ToReleaseList,
+      (LTE_PMCH_InfoList_r9_t *) NULL,
+      ue_context_p->ue_context.secondaryCellGroup);
+
 }
 
 

openair2/RRC/NR/rrc_gNB_reconfig.c

@@ -62,7 +62,7 @@ void fill_default_secondaryCellGroup(NR_ServingCellConfigCommon_t *servingcellco
 
   NR_RLC_BearerConfig_t *RLC_BearerConfig = calloc(1,sizeof(*RLC_BearerConfig));
 
-  RLC_BearerConfig->logicalChannelIdentity = 4;
+  RLC_BearerConfig->logicalChannelIdentity = 3;
   RLC_BearerConfig->servedRadioBearer = calloc(1,sizeof(*RLC_BearerConfig->servedRadioBearer));
   RLC_BearerConfig->servedRadioBearer->present = 	NR_RLC_BearerConfig__servedRadioBearer_PR_drb_Identity;
 
@@ -2046,7 +2046,7 @@ void fill_default_reconfig(NR_ServingCellConfigCommon_t *servingcellconfigcommon
   reconfig->nonCriticalExtension = NULL;
 }
 
-void fill_default_rbconfig(NR_RadioBearerConfig_t *rbconfig) {
+void fill_default_rbconfig(NR_RadioBearerConfig_t *rbconfig, long eps_BearerIdentity, long drb_Identity) {
 
   rbconfig->srb_ToAddModList = NULL;
   rbconfig->srb3_ToRelease = NULL;
@@ -2054,8 +2054,8 @@ void fill_default_rbconfig(NR_RadioBearerConfig_t *rbconfig) {
   NR_DRB_ToAddMod_t *drb_ToAddMod = calloc(1,sizeof(*drb_ToAddMod));
   drb_ToAddMod->cnAssociation = calloc(1,sizeof(*drb_ToAddMod->cnAssociation));
   drb_ToAddMod->cnAssociation->present = NR_DRB_ToAddMod__cnAssociation_PR_eps_BearerIdentity;
-  drb_ToAddMod->cnAssociation->choice.eps_BearerIdentity=5;
-  drb_ToAddMod->drb_Identity = 1;
+  drb_ToAddMod->cnAssociation->choice.eps_BearerIdentity= eps_BearerIdentity; //5;
+  drb_ToAddMod->drb_Identity = drb_Identity;
   drb_ToAddMod->reestablishPDCP = NULL;
   drb_ToAddMod->recoverPDCP = NULL;
   drb_ToAddMod->pdcp_Config = calloc(1,sizeof(*drb_ToAddMod->pdcp_Config));