fix Msg3 PHICH issue and C-RNTI DRB active issue

openair2/LAYER2/MAC/eNB_scheduler_RA.c

@@ -212,12 +212,12 @@ add_msg3(module_id_t module_idP, int CC_id, RA_t *ra, frame_t frameP,
       hi_dci0_req->sfn_sf                                     = sfnsf_add_subframe(frameP, subframeP, sf_ahead_dl);
       hi_dci0_req->header.message_id                          = NFAPI_HI_DCI0_REQUEST;
 
-      if (NFAPI_MODE != NFAPI_MONOLITHIC) {
-        oai_nfapi_hi_dci0_req(hi_dci0_req);
-        hi_dci0_req_body->number_of_hi=0;
-      }
+      //if (NFAPI_MODE != NFAPI_MONOLITHIC) {
+      //  oai_nfapi_hi_dci0_req(hi_dci0_req);
+      //  hi_dci0_req_body->number_of_hi=0;
+      //}
 
-      LOG_D(MAC, "MSG3: HI_DCI0 SFN/SF:%d number_of_dci:%d number_of_hi:%d\n", NFAPI_SFNSF2DEC(hi_dci0_req->sfn_sf), hi_dci0_req_body->number_of_dci, hi_dci0_req_body->number_of_hi);
+      //LOG_D(MAC, "MSG3: HI_DCI0 SFN/SF:%d number_of_dci:%d number_of_hi:%d\n", NFAPI_SFNSF2DEC(hi_dci0_req->sfn_sf), hi_dci0_req_body->number_of_dci, hi_dci0_req_body->number_of_hi);
 
       // save UL scheduling information for preprocessor
       for (j = 0; j < ra->msg3_nb_rb; j++)

openair2/LAYER2/MAC/eNB_scheduler_ulsch.c

@@ -312,6 +312,23 @@ rx_sdu(const module_id_t enb_mod_idP,
 
       if (ra->msg3_round >= mac->common_channels[CC_idP].radioResourceConfigCommon->rach_ConfigCommon.maxHARQ_Msg3Tx - 1) {
         cancel_ra_proc(enb_mod_idP, CC_idP, frameP, current_rnti);
+        nfapi_hi_dci0_request_t *hi_dci0_req = NULL;
+        uint8_t sf_ahead_dl = ul_subframe2_k_phich(&mac->common_channels[CC_idP], subframeP);
+        hi_dci0_req = &mac->HI_DCI0_req[CC_idP][(subframeP + sf_ahead_dl) % 10];
+        nfapi_hi_dci0_request_body_t *hi_dci0_req_body = &hi_dci0_req->hi_dci0_request_body;
+        nfapi_hi_dci0_request_pdu_t *hi_dci0_pdu = &hi_dci0_req_body->hi_dci0_pdu_list[hi_dci0_req_body->number_of_dci + hi_dci0_req_body->number_of_hi];
+        memset((void *) hi_dci0_pdu, 0, sizeof(nfapi_hi_dci0_request_pdu_t));
+        hi_dci0_pdu->pdu_type = NFAPI_HI_DCI0_HI_PDU_TYPE;
+        hi_dci0_pdu->pdu_size = 2 + sizeof(nfapi_hi_dci0_hi_pdu);
+        hi_dci0_pdu->hi_pdu.hi_pdu_rel8.tl.tag = NFAPI_HI_DCI0_REQUEST_HI_PDU_REL8_TAG;
+        hi_dci0_pdu->hi_pdu.hi_pdu_rel8.resource_block_start = first_rb;
+        hi_dci0_pdu->hi_pdu.hi_pdu_rel8.cyclic_shift_2_for_drms = 0;
+        hi_dci0_pdu->hi_pdu.hi_pdu_rel8.hi_value = 0;
+        hi_dci0_req_body->number_of_hi++;
+        hi_dci0_req_body->sfnsf = sfnsf_add_subframe(frameP, subframeP, 0);
+        hi_dci0_req_body->tl.tag = NFAPI_HI_DCI0_REQUEST_BODY_TAG;
+        hi_dci0_req->sfn_sf = sfnsf_add_subframe(frameP, subframeP, sf_ahead_dl);
+        hi_dci0_req->header.message_id = NFAPI_HI_DCI0_REQUEST;
       } else {
         if (ra->rach_resource_type > 0) {
           cancel_ra_proc(enb_mod_idP, CC_idP, frameP, current_rnti);        // TODO: Currently we don't support retransmission of Msg3 ( If in error Cancel RA procedure and reattach)

openair2/RRC/LTE/rrc_eNB.c

@@ -6711,6 +6711,7 @@ rrc_eNB_process_RRCConnectionReconfigurationComplete(
                                   );
           }
         } else {        // remove LCHAN from MAC/PHY
+#if 0
           if (ue_context_pP->ue_context.DRB_active[drb_id] == 1) {
             // DRB has just been removed so remove RLC + PDCP for DRB
             /*      rrc_pdcp_config_req (ctxt_pP->module_id, frameP, 1, CONFIG_ACTION_REMOVE,
@@ -6727,6 +6728,11 @@ rrc_eNB_process_RRCConnectionReconfigurationComplete(
           }
 
           ue_context_pP->ue_context.DRB_active[drb_id] = 0;
+#endif
+         if (DRB_configList->list.array[i]->logicalChannelIdentity) {
+            DRB2LCHAN[i] = (uint8_t) * DRB_configList->list.array[i]->logicalChannelIdentity;
+          }
+
           LOG_D(RRC, PROTOCOL_RRC_CTXT_UE_FMT" RRC_eNB --- MAC_CONFIG_REQ  (DRB) ---> MAC_eNB\n",
                 PROTOCOL_RRC_CTXT_UE_ARGS(ctxt_pP));