Store active LCs in MAC, remove unneeded headers

openair2/ENB_APP/flexran_agent_ran_api.c

@@ -890,13 +890,13 @@ uint8_t flexran_get_rrc_status(mid_t mod_id, rnti_t rnti) {
 uint64_t flexran_get_ue_aggregated_max_bitrate_dl(mid_t mod_id, mid_t ue_id) {
   if (!mac_is_present(mod_id)) return 0;
 
-  return RC.mac[mod_id]->UE_info.UE_sched_ctrl[ue_id].ue_AggregatedMaximumBitrateDL;
+  return 0; //RC.mac[mod_id]->UE_info.UE_sched_ctrl[ue_id].ue_AggregatedMaximumBitrateDL;
 }
 
 uint64_t flexran_get_ue_aggregated_max_bitrate_ul(mid_t mod_id, mid_t ue_id) {
   if (!mac_is_present(mod_id)) return 0;
 
-  return RC.mac[mod_id]->UE_info.UE_sched_ctrl[ue_id].ue_AggregatedMaximumBitrateUL;
+  return 0; //RC.mac[mod_id]->UE_info.UE_sched_ctrl[ue_id].ue_AggregatedMaximumBitrateUL;
 }
 
 int flexran_get_half_duplex(mid_t mod_id, rnti_t rnti) {

openair2/LAYER2/MAC/config.c

@@ -882,6 +882,34 @@ int rrc_mac_config_req_eNB(module_id_t Mod_idP,
     }
   }
 
+  if (logicalChannelIdentity > 0) { // is SRB1,2 or DRB
+    if ((UE_id = find_UE_id(Mod_idP, rntiP)) < 0) {
+      LOG_E(MAC,"Configuration received for unknown UE (%x), shouldn't happen\n",rntiP);
+      return(-1);
+    }
+    int idx = -1;
+    UE_sched_ctrl_t *sched_ctrl = &UE_info->UE_sched_ctrl[UE_id];
+    for (int i = 0; i < sched_ctrl->dl_lc_num; ++i) {
+      if (sched_ctrl->dl_lc_ids[i] == logicalChannelIdentity) {
+        /* TODO this might also mean we have to remove it, not clear */
+        idx = i;
+        break;
+      }
+    }
+    if (idx < 0) {
+      sched_ctrl->dl_lc_num++;
+      sched_ctrl->dl_lc_ids[sched_ctrl->dl_lc_num-1] = logicalChannelIdentity;
+      sched_ctrl->dl_lc_bytes[sched_ctrl->dl_lc_num-1] = 0;
+      LOG_I(MAC, "UE %d RNTI %x adding LC %ld idx %d to scheduling control (total %d)\n", UE_id, rntiP, logicalChannelIdentity, sched_ctrl->dl_lc_num-1, sched_ctrl->dl_lc_num);
+      if (logicalChannelIdentity == 1) { // if it is SRB1, add SRB2 directly because RRC does not indicate this separately
+        sched_ctrl->dl_lc_num++;
+        sched_ctrl->dl_lc_ids[sched_ctrl->dl_lc_num-1] = 2;
+        sched_ctrl->dl_lc_bytes[sched_ctrl->dl_lc_num-1] = 0;
+        LOG_I(MAC, "UE %d RNTI %x adding LC 2 idx %d to scheduling control (total %d)\n", UE_id, rntiP, sched_ctrl->dl_lc_num-1, sched_ctrl->dl_lc_num);
+      }
+    }
+  }
+
   // SRB2_lchan_config->choice.explicitValue.ul_SpecificParameters->logicalChannelGroup
   if (logicalChannelConfig != NULL) { // check for eMTC specific things
     UE_id = find_UE_id(Mod_idP, rntiP);

openair2/LAYER2/MAC/mac.h

@@ -852,10 +852,10 @@ typedef struct {
 
   // Logical channel info for link with RLC
 
-  /// LCGID mapping
+  /// LCGID mapping (UL)
   long lcgidmap[11];
 
-  ///UE logical channel priority
+  ///UE logical channel priority (UL)
   long lcgidpriority[11];
 
   /// phr information
@@ -913,31 +913,15 @@ typedef struct {
 
 /*! \brief scheduling control information set through an API (not used)*/
 typedef struct {
-  ///UL transmission bandwidth in RBs
-  uint8_t ul_bandwidth[MAX_NUM_LCID];
-  ///DL transmission bandwidth in RBs
-  uint8_t dl_bandwidth[MAX_NUM_LCID];
-
-  //To do GBR bearer
-  uint8_t min_ul_bandwidth[MAX_NUM_LCID];
-
-  uint8_t min_dl_bandwidth[MAX_NUM_LCID];
-
-  ///aggregated bit rate of non-gbr bearer per UE
-  uint64_t ue_AggregatedMaximumBitrateDL;
-  ///aggregated bit rate of non-gbr bearer per UE
-  uint64_t ue_AggregatedMaximumBitrateUL;
-  ///CQI scheduling interval in subframes.
-  uint16_t cqiSchedInterval;
-  ///Contention resolution timer used during random access
-  uint8_t mac_ContentionResolutionTimer;
+  /// number of active DL LCs
+  uint8_t dl_lc_num;
+  /// order in which DLSCH scheduler should allocate LCs
+  uint8_t dl_lc_ids[MAX_NUM_LCID];
+  /// number of bytes to schedule for each LC
+  uint32_t dl_lc_bytes[MAX_NUM_LCID];
 
   uint16_t max_rbs_allowed_slice_uplink[NFAPI_CC_MAX][MAX_NUM_SLICES];
 
-  uint8_t max_mcs[MAX_NUM_LCID];
-
-  uint16_t priority[MAX_NUM_LCID];
-
   // resource scheduling information
 
   /// Current DL harq round per harq_pid on each CC