flexran_agent_rrc.c 24.8 KB
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/*
 * Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The OpenAirInterface Software Alliance licenses this file to You under
 * the OAI Public License, Version 1.0  (the "License"); you may not use this file
 * except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.openairinterface.org/?page_id=698
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *-------------------------------------------------------------------------------
 * For more information about the OpenAirInterface (OAI) Software Alliance:
 *      contact@openairinterface.org
 */ 

/*! \file flexran_agent_mac.c
 * \brief FlexRAN agent Control Module RRC 
 * \author shahab SHARIAT BAGHERI
 * \date 2017
 * \version 0.1
 */

#include "flexran_agent_rrc.h"


#include "liblfds700.h"

#include "log.h"

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/*Trigger boolean for RRC measurement*/
bool triggered_rrc = false;
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/*Flags showing if an rrc agent has already been registered*/
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unsigned int rrc_agent_registered[NUM_MAX_ENB];

/*Array containing the Agent-RRC interfaces*/
AGENT_RRC_xface *agent_rrc_xface[NUM_MAX_ENB];


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void flexran_agent_ue_state_change(mid_t mod_id, uint32_t rnti, uint8_t state_change) {
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  int size;
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  Protocol__FlexranMessage *msg = NULL;
  Protocol__FlexHeader *header = NULL;
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  void *data;
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  int priority = 0;
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  err_code_t err_code;

  int xid = 0;

  if (flexran_create_header(xid, PROTOCOL__FLEX_TYPE__FLPT_UE_STATE_CHANGE, &header) != 0)
    goto error;

  Protocol__FlexUeStateChange *ue_state_change_msg;
  ue_state_change_msg = malloc(sizeof(Protocol__FlexUeStateChange));
  if(ue_state_change_msg == NULL) {
    goto error;
  }
  protocol__flex_ue_state_change__init(ue_state_change_msg);
  ue_state_change_msg->has_type = 1;
  ue_state_change_msg->type = state_change;

  Protocol__FlexUeConfig *config;
  config = malloc(sizeof(Protocol__FlexUeConfig));
  if (config == NULL) {
    goto error;
  }
  protocol__flex_ue_config__init(config);
  if (state_change == PROTOCOL__FLEX_UE_STATE_CHANGE_TYPE__FLUESC_DEACTIVATED) {
    // Simply set the rnti of the UE
    config->has_rnti = 1;
    config->rnti = rnti;
  } else if (state_change == PROTOCOL__FLEX_UE_STATE_CHANGE_TYPE__FLUESC_UPDATED
       || state_change == PROTOCOL__FLEX_UE_STATE_CHANGE_TYPE__FLUESC_ACTIVATED) {
        int i = find_UE_id(mod_id, rnti);
      config->has_rnti = 1;
      config->rnti = rnti;
        if(flexran_get_time_alignment_timer(mod_id,i) != -1) {
          config->time_alignment_timer = flexran_get_time_alignment_timer(mod_id,i);
          config->has_time_alignment_timer = 1;
        }
        if(flexran_get_meas_gap_config(mod_id,i) != -1){
          config->meas_gap_config_pattern = flexran_get_meas_gap_config(mod_id,i);
            config->has_meas_gap_config_pattern = 1;
        }
        if(config->has_meas_gap_config_pattern == 1 &&
         config->meas_gap_config_pattern != PROTOCOL__FLEX_MEAS_GAP_CONFIG_PATTERN__FLMGCP_OFF) {
        config->meas_gap_config_sf_offset = flexran_get_meas_gap_config_offset(mod_id,i);
        config->has_meas_gap_config_sf_offset = 1;
        }
        //TODO: Set the SPS configuration (Optional)
        //Not supported for now, so we do not set it

        //TODO: Set the SR configuration (Optional)
        //We do not set it for now

        //TODO: Set the CQI configuration (Optional)
        //We do not set it for now
      
      if(flexran_get_ue_transmission_mode(mod_id,i) != -1) {
          config->transmission_mode = flexran_get_ue_transmission_mode(mod_id,i);
          config->has_transmission_mode = 1;
        }

      config->ue_aggregated_max_bitrate_ul = flexran_get_ue_aggregated_max_bitrate_ul(mod_id,i);
        config->has_ue_aggregated_max_bitrate_ul = 1;

      config->ue_aggregated_max_bitrate_dl = flexran_get_ue_aggregated_max_bitrate_dl(mod_id,i);
        config->has_ue_aggregated_max_bitrate_dl = 1;

        //TODO: Set the UE capabilities
        Protocol__FlexUeCapabilities *c_capabilities;
        c_capabilities = malloc(sizeof(Protocol__FlexUeCapabilities));
        protocol__flex_ue_capabilities__init(c_capabilities);
        //TODO: Set half duplex (FDD operation)
        c_capabilities->has_half_duplex = 0;
        c_capabilities->half_duplex = 1;//flexran_get_half_duplex(i);
        //TODO: Set intra-frame hopping flag
        c_capabilities->has_intra_sf_hopping = 0;
        c_capabilities->intra_sf_hopping = 1;//flexran_get_intra_sf_hopping(i);
        //TODO: Set support for type 2 hopping with n_sb > 1
        c_capabilities->has_type2_sb_1 = 0;
        c_capabilities->type2_sb_1 = 1;//flexran_get_type2_sb_1(i);
        //TODO: Set ue category
        c_capabilities->has_ue_category = 0;
        c_capabilities->ue_category = 1;//flexran_get_ue_category(i);
        //TODO: Set UE support for resource allocation type 1
        c_capabilities->has_res_alloc_type1 = 0;
        c_capabilities->res_alloc_type1 = 1;//flexran_get_res_alloc_type1(i);
        //Set the capabilites to the message
        config->capabilities = c_capabilities;
      
        if(flexran_get_ue_transmission_antenna(mod_id,i) != -1) {
        config->has_ue_transmission_antenna = 1;
        config->ue_transmission_antenna = flexran_get_ue_transmission_antenna(mod_id,i);
        }

        if(flexran_get_tti_bundling(mod_id,i) != -1) {
        config->has_tti_bundling = 1;
        config->tti_bundling = flexran_get_tti_bundling(mod_id,i);
        }

        if(flexran_get_maxHARQ_TX(mod_id,i) != -1){
        config->has_max_harq_tx = 1;
        config->max_harq_tx = flexran_get_maxHARQ_TX(mod_id,i);
        }

        if(flexran_get_beta_offset_ack_index(mod_id,i) != -1) {
        config->has_beta_offset_ack_index = 1;
        config->beta_offset_ack_index = flexran_get_beta_offset_ack_index(mod_id,i);
        }

        if(flexran_get_beta_offset_ri_index(mod_id,i) != -1) {
        config->has_beta_offset_ri_index = 1;
        config->beta_offset_ri_index = flexran_get_beta_offset_ri_index(mod_id,i);
        }

        if(flexran_get_beta_offset_cqi_index(mod_id,i) != -1) {
        config->has_beta_offset_cqi_index = 1;
        config->beta_offset_cqi_index = flexran_get_beta_offset_cqi_index(mod_id,i);
        }

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        /* assume primary carrier */
        if(flexran_get_ack_nack_simultaneous_trans(mod_id,i,0) != -1) {
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        config->has_ack_nack_simultaneous_trans = 1;
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        config->ack_nack_simultaneous_trans = flexran_get_ack_nack_simultaneous_trans(mod_id,i,0);
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        }

        if(flexran_get_simultaneous_ack_nack_cqi(mod_id,i) != -1) {
        config->has_simultaneous_ack_nack_cqi = 1;
        config->simultaneous_ack_nack_cqi = flexran_get_simultaneous_ack_nack_cqi(mod_id,i);
        }

        if(flexran_get_aperiodic_cqi_rep_mode(mod_id,i) != -1) {
        config->has_aperiodic_cqi_rep_mode = 1;
        int mode = flexran_get_aperiodic_cqi_rep_mode(mod_id,i);
        if (mode > 4) {
          config->aperiodic_cqi_rep_mode = PROTOCOL__FLEX_APERIODIC_CQI_REPORT_MODE__FLACRM_NONE;
        } else {
          config->aperiodic_cqi_rep_mode = mode;
        }
        }

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        if(flexran_get_tdd_ack_nack_feedback_mode(mod_id, i) != -1) {
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        config->has_tdd_ack_nack_feedback = 1;
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        config->tdd_ack_nack_feedback = flexran_get_tdd_ack_nack_feedback_mode(mod_id,i);
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        }

        if(flexran_get_ack_nack_repetition_factor(mod_id, i) != -1) {
        config->has_ack_nack_repetition_factor = 1;
        config->ack_nack_repetition_factor = flexran_get_ack_nack_repetition_factor(mod_id,i);
        }

        if(flexran_get_extended_bsr_size(mod_id, i) != -1) {
        config->has_extended_bsr_size = 1;
        config->extended_bsr_size = flexran_get_extended_bsr_size(mod_id,i);
        }

      config->has_pcell_carrier_index = 1;
      config->pcell_carrier_index = UE_PCCID(mod_id, i);
        //TODO: Set carrier aggregation support (boolean)
        config->has_ca_support = 0;
        config->ca_support = 0;
        if(config->has_ca_support){
        //TODO: Set cross carrier scheduling support (boolean)
        config->has_cross_carrier_sched_support = 1;
        config->cross_carrier_sched_support = 0;
        //TODO: Set secondary cells configuration
        // We do not set it for now. No carrier aggregation support
        
        //TODO: Set deactivation timer for secondary cell
        config->has_scell_deactivation_timer = 0;
        config->scell_deactivation_timer = 0;
        }
  } else if (state_change == PROTOCOL__FLEX_UE_STATE_CHANGE_TYPE__FLUESC_MOVED) {
    // TODO: Not supported for now. Leave blank
  }

  ue_state_change_msg->config = config;
  msg = malloc(sizeof(Protocol__FlexranMessage));
  if (msg == NULL) {
    goto error;
  }
  protocol__flexran_message__init(msg);
  msg->msg_case = PROTOCOL__FLEXRAN_MESSAGE__MSG_UE_STATE_CHANGE_MSG;
  msg->msg_dir = PROTOCOL__FLEXRAN_DIRECTION__INITIATING_MESSAGE;
  msg->ue_state_change_msg = ue_state_change_msg;

  data = flexran_agent_pack_message(msg, &size);
  /*Send sr info using the MAC channel of the eNB*/
  if (flexran_agent_msg_send(mod_id, FLEXRAN_AGENT_DEFAULT, data, size, priority)) {
    err_code = PROTOCOL__FLEXRAN_ERR__MSG_ENQUEUING;
    goto error;
  }

  LOG_D(FLEXRAN_AGENT,"sent message with size %d\n", size);
  return;
 error:
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  LOG_E(FLEXRAN_AGENT, "Could not send UE state message becasue of %d \n",err_code);
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}



int flexran_agent_destroy_ue_state_change(Protocol__FlexranMessage *msg) {
  if(msg->msg_case != PROTOCOL__FLEXRAN_MESSAGE__MSG_UE_STATE_CHANGE_MSG)
    goto error;
  free(msg->ue_state_change_msg->header);
  //TODO: Free the contents of the UE config structure
  free(msg->ue_state_change_msg);
  free(msg);
  return 0;

 error:
  //LOG_E(MAC, "%s: an error occured\n", __FUNCTION__);
  return -1;
}

/* this is called by RRC as a part of rrc xface  . The controller previously requested  this*/ 
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void flexran_trigger_rrc_measurements (mid_t mod_id, MeasResults_t*  measResults) {
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  int i;
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  // int                   priority = 0; // Warning Preventing
  // void                  *data;
  // int                   size;
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  // err_code_t             err_code = -100;
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  triggered_rrc = true;
  int num;
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  num = flexran_get_num_ues (mod_id);
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  meas_stats = malloc(sizeof(rrc_meas_stats) * num); 
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  for (i = 0; i < num; i++){
    meas_stats[i].rnti = flexran_get_ue_crnti(mod_id, i);
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    meas_stats[i].meas_id = flexran_get_rrc_pcell_measid(mod_id,i);
    meas_stats[i].rsrp =  flexran_get_rrc_pcell_rsrp(mod_id,i) - 140;
    // measResults->measResultPCell.rsrpResult - 140;
    meas_stats[i].rsrq =  flexran_get_rrc_pcell_rsrq(mod_id,i)/2 - 20;
    // (measResults->measResultPCell.rsrqResult)/2 - 20;                          
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  }
    // repl->neigh_meas = NULL;
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  // if (meas->measResultNeighCells != NULL) {
  //   /*
  //   * Neighboring cells measurements performed by UE.
  //   */
  //   NeighCellsMeasurements *neigh_meas;
  //   neigh_meas = malloc(sizeof(NeighCellsMeasurements));
  //   if (neigh_meas == NULL)
  //     goto error;
  //   neigh_cells_measurements__init(neigh_meas);

  //   /* EUTRAN RRC Measurements. */
  //   if (meas->measResultNeighCells->present ==
  //         MeasResults__measResultNeighCells_PR_measResultListEUTRA) {

  //     MeasResultListEUTRA_t meas_list = meas->measResultNeighCells->
  //                         choice.measResultListEUTRA;
  //     /* Set the number of EUTRAN measurements present in report. */
  //     neigh_meas->n_eutra_meas = meas_list.list.count;
  //     if (neigh_meas->n_eutra_meas > 0) {
  //       /* Initialize EUTRAN measurements. */
  //       EUTRAMeasurements **eutra_meas;
  //       eutra_meas = malloc(sizeof(EUTRAMeasurements *) *
  //                         neigh_meas->n_eutra_meas);
  //       for (i = 0; i < neigh_meas->n_eutra_meas; i++) {
  //         eutra_meas[i] = malloc(sizeof(EUTRAMeasurements));
  //         eutra_measurements__init(eutra_meas[i]);
  //         /* Fill in the physical cell identifier. */
  //         eutra_meas[i]->has_phys_cell_id = 1;
  //         eutra_meas[i]->phys_cell_id = meas_list.list.array[i]->
  //                                 physCellId;
  //         // log_i(agent,"PCI of Target %d", eutra_meas[i]->phys_cell_id);
  //         /* Check for Reference signal measurements. */
  //         if (&(meas_list.list.array[i]->measResult)) {
  //           /* Initialize Ref. signal measurements. */
  //           EUTRARefSignalMeas *meas_result;
  //           meas_result = malloc(sizeof(EUTRARefSignalMeas));
  //           eutra_ref_signal_meas__init(meas_result);

  //           if (meas_list.list.array[i]->measResult.rsrpResult) {
  //             meas_result->has_rsrp = 1;
  //             meas_result->rsrp = RSRP_meas_mapping[*(meas_list.
  //                   list.array[i]->measResult.rsrpResult)];
  //             // log_i(agent,"RSRP of Target %d", meas_result->rsrp);
  //           }

  //           if (meas_list.list.array[i]->measResult.rsrqResult) {
  //             meas_result->has_rsrq = 1;
  //             meas_result->rsrq = RSRQ_meas_mapping[*(meas_list.
  //                   list.array[i]->measResult.rsrqResult)];
  //             // log_i(agent,"RSRQ of Target %d", meas_result->rsrq);
  //           }
  //           eutra_meas[i]->meas_result = meas_result;
  //         }
  //         /* Check for CGI measurements. */
  //         if (meas_list.list.array[i]->cgi_Info) {
  //           /* Initialize CGI measurements. */
  //           EUTRACgiMeasurements *cgi_meas;
  //           cgi_meas = malloc(sizeof(EUTRACgiMeasurements));
  //           eutra_cgi_measurements__init(cgi_meas);

  //           /* EUTRA Cell Global Identity (CGI). */
  //           CellGlobalIdEUTRA *cgi;
  //           cgi = malloc(sizeof(CellGlobalIdEUTRA));
  //           cell_global_id__eutra__init(cgi);

  //           cgi->has_cell_id = 1;
  //           CellIdentity_t cId = meas_list.list.array[i]->
  //                     cgi_Info->cellGlobalId.cellIdentity;
  //           cgi->cell_id = (cId.buf[0] << 20) + (cId.buf[1] << 12) +
  //                   (cId.buf[2] << 4) + (cId.buf[3] >> 4);

  //           /* Public land mobile network identifier of neighbor
  //            * cell.
  //            */
  //           PlmnIdentity *plmn_id;
  //           plmn_id = malloc(sizeof(PlmnIdentity));
  //           plmn_identity__init(plmn_id);

  //           MNC_t mnc = meas_list.list.array[i]->
  //                 cgi_Info->cellGlobalId.plmn_Identity.mnc;

  //           plmn_id->has_mnc = 1;
  //           plmn_id->mnc = 0;
  //           for (m = 0; m < mnc.list.count; m++) {
  //             plmn_id->mnc += *mnc.list.array[m] *
  //               ((uint32_t) pow(10, mnc.list.count - m - 1));
  //           }

  //           MCC_t *mcc = meas_list.list.array[i]->
  //                 cgi_Info->cellGlobalId.plmn_Identity.mcc;

  //           plmn_id->has_mcc = 1;
  //           plmn_id->mcc = 0;
  //           for (m = 0; m < mcc->list.count; m++) {
  //             plmn_id->mcc += *mcc->list.array[m] *
  //               ((uint32_t) pow(10, mcc->list.count - m - 1));
  //           }

  //           TrackingAreaCode_t tac = meas_list.list.array[i]->
  //                         cgi_Info->trackingAreaCode;

  //           cgi_meas->has_tracking_area_code = 1;
  //           cgi_meas->tracking_area_code = (tac.buf[0] << 8) +
  //                               (tac.buf[1]);

  //           PLMN_IdentityList2_t *plmn_l = meas_list.list.array[i]->
  //                         cgi_Info->plmn_IdentityList;

  //           cgi_meas->n_plmn_id = plmn_l->list.count;
  //           /* Set the PLMN ID list in CGI measurements. */
  //           PlmnIdentity **plmn_id_l;
  //           plmn_id_l = malloc(sizeof(PlmnIdentity *) *
  //                           cgi_meas->n_plmn_id);

  //           MNC_t mnc2;
  //           MCC_t *mcc2;
  //           for (m = 0; m < cgi_meas->n_plmn_id; m++) {
  //             plmn_id_l[m] = malloc(sizeof(PlmnIdentity));
  //             plmn_identity__init(plmn_id_l[m]);

  //             mnc2 = plmn_l->list.array[m]->mnc;
  //             plmn_id_l[m]->has_mnc = 1;
  //             plmn_id_l[m]->mnc = 0;
  //             for (k = 0; k < mnc2.list.count; k++) {
  //               plmn_id_l[m]->mnc += *mnc2.list.array[k] *
  //               ((uint32_t) pow(10, mnc2.list.count - k - 1));
  //             }

  //             mcc2 = plmn_l->list.array[m]->mcc;
  //             plmn_id_l[m]->has_mcc = 1;
  //             plmn_id_l[m]->mcc = 0;
  //             for (k = 0; k < mcc2->list.count; k++) {
  //               plmn_id_l[m]->mcc += *mcc2->list.array[k] *
  //               ((uint32_t) pow(10, mcc2->list.count - k - 1));
  //             }
  //           }
  //           cgi_meas->plmn_id = plmn_id_l;
  //           eutra_meas[i]->cgi_meas = cgi_meas;
  //         }
  //       }
  //       neigh_meas->eutra_meas = eutra_meas;
  //     }
  //   }
  //   repl->neigh_meas = neigh_meas;
  // }
  /* Attach the RRC measurement reply message to RRC measurements message. */
  // mrrc_meas->repl = repl;
  /* Attach RRC measurement message to triggered event message. */
  // te->mrrc_meas = mrrc_meas;
  // te->has_action = 0;
  /* Attach the triggered event message to main message. */
  // reply->te = te;

  /* Send the report to controller. */
  // if (flexran_agent_msg_send(b_id, reply) < 0) {
  //   goto error;
  // }

  /* Free the measurement report received from UE. */
  // ASN_STRUCT_FREE(asn_DEF_MeasResults, p->meas);
  /* Free the params. */
  // free(p);


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  // stats_reply_msg->cell_report = cell_report;
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  // stats_reply_msg->ue_report = ue_report;
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  // msg = malloc(sizeof(Protocol__FlexranMessage));
  // if(msg == NULL)
  //   goto error;
  // protocol__flexran_message__init(msg);
  // msg->msg_case = PROTOCOL__FLEXRAN_MESSAGE__MSG_STATS_REPLY_MSG;
  // msg->msg_dir = PROTOCOL__FLEXRAN_DIRECTION__SUCCESSFUL_OUTCOME;
  // msg->stats_reply_msg = stats_reply_msg;
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  // data = flexran_agent_pack_message(msg, &size);
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  // if (flexran_agent_msg_send(mod_id, FLEXRAN_AGENT_DEFAULT, data, size, priority)) {
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  //   err_code = PROTOCOL__FLEXRAN_ERR__MSG_ENQUEUING;
  //   goto error;
  // }
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  //  LOG_I(FLEXRAN_AGENT,"RRC Trigger is done  \n");
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  return;
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  // error:
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    // LOG_E(FLEXRAN_AGENT, "Could not send UE state message becasue of %d \n",err_code);
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    /* Free the measurement report received from UE. */
    // ASN_STRUCT_FREE(asn_DEF_MeasResults, p->meas);
    /* Free the params. */
    // free(p);
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    // return -1;
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}


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int flexran_agent_rrc_stats_reply(mid_t mod_id,       
          const report_config_t *report_config,
           Protocol__FlexUeStatsReport **ue_report,
           Protocol__FlexCellStatsReport **cell_report) {


  // Protocol__FlexHeader *header;
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  int i,j;
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  /* Allocate memory for list of UE reports */
  if (report_config->nr_ue > 0) {

    for (i = 0; i < report_config->nr_ue; i++) {
      
      /* Check flag for creation of buffer status report */
      if (report_config->ue_report_type[i].ue_report_flags & PROTOCOL__FLEX_UE_STATS_TYPE__FLUST_RRC_MEASUREMENTS) {
505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577
      	
        /*Source Cell*/
        Protocol__FlexRrcMeasurements *rrc_measurements;
      	rrc_measurements = malloc(sizeof(Protocol__FlexRrcMeasurements));
      	if (rrc_measurements == NULL)
      	  goto error;
      	protocol__flex_rrc_measurements__init(rrc_measurements);
      	
      	rrc_measurements->measid = flexran_get_rrc_pcell_measid(mod_id,i);
      	rrc_measurements->has_measid = 1;
      	
      	rrc_measurements->pcell_rsrp = flexran_get_rrc_pcell_rsrp(mod_id,i);
      	rrc_measurements->has_pcell_rsrp = 1;
      	
      	rrc_measurements->pcell_rsrq = flexran_get_rrc_pcell_rsrq(mod_id,i);
      	rrc_measurements->has_pcell_rsrq = 1 ;

        
        /* Target Cell, Neghibouring*/
        Protocol__FlexNeighCellsMeasurements *neigh_meas;
        neigh_meas = malloc(sizeof(Protocol__FlexNeighCellsMeasurements));
        if (neigh_meas == NULL)
          goto error;
        protocol__flex_neigh_cells_measurements__init(neigh_meas);
         
        
        neigh_meas->n_eutra_meas = flexran_get_rrc_num_ncell(mod_id, i);

        Protocol__FlexEutraMeasurements **eutra_meas = NULL;

        if (neigh_meas->n_eutra_meas > 0){
          
          eutra_meas = malloc(sizeof(Protocol__FlexEutraMeasurements) * neigh_meas->n_eutra_meas);
          if (eutra_meas == NULL)
            goto error;
          
          for (j = 0; j < neigh_meas->n_eutra_meas; j++ ){

              eutra_meas[j] = malloc(sizeof(Protocol__FlexEutraMeasurements));
              if (eutra_meas[j] == NULL)
                goto error;

              protocol__flex_eutra_measurements__init(eutra_meas[j]);

              eutra_meas[j]->phys_cell_id = flexran_get_rrc_neigh_phy_cell_id(mod_id, i, j);
              eutra_meas[j]->has_phys_cell_id = 1;


              /*TODO: Extend for CGI and PLMNID*/

              Protocol__FlexEutraRefSignalMeas *meas_result;
              meas_result = malloc(sizeof(Protocol__FlexEutraRefSignalMeas));

              protocol__flex_eutra_ref_signal_meas__init(meas_result);     

              meas_result->rsrp = flexran_get_rrc_neigh_rsrp(mod_id, i, eutra_meas[j]->phys_cell_id);
              meas_result->has_rsrp = 1;

              meas_result->rsrq = flexran_get_rrc_neigh_rsrq(mod_id, i, eutra_meas[j]->phys_cell_id);
              meas_result->has_rsrq = 1;

              eutra_meas[j]->meas_result = meas_result;
             
          }    

           neigh_meas->eutra_meas = eutra_meas;   

           rrc_measurements->neigh_meas = neigh_meas;
       
        }

      	 ue_report[i]->rrc_measurements = rrc_measurements;
      	
578
      }
579 580 581

    } 

582
  }
583

584
  /* To be considered for RRC signaling of cell*/ 
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  // if (report_config->nr_cc > 0) { 
    
            
  //           // Fill in the Cell reports
  //           for (i = 0; i < report_config->nr_cc; i++) {


  //                     /* Check flag for creation of noise and interference report */
  //                     if(report_config->cc_report_type[i].cc_report_flags & PROTOCOL__FLEX_CELL_STATS_TYPE__FLCST_NOISE_INTERFERENCE) {
  //                           // TODO: Fill in the actual noise and interference report for this cell
  //                           Protocol__FlexNoiseInterferenceReport *ni_report;
  //                           ni_report = malloc(sizeof(Protocol__FlexNoiseInterferenceReport));
  //                           if(ni_report == NULL)
  //                             goto error;
  //                           protocol__flex_noise_interference_report__init(ni_report);
  //                           // Current frame and subframe number
  //                           ni_report->sfn_sf = flexran_get_sfn_sf(enb_id);
  //                           ni_report->has_sfn_sf = 1;
  //                           //TODO:Received interference power in dbm
  //                           ni_report->rip = 0;
  //                           ni_report->has_rip = 1;
  //                           //TODO:Thermal noise power in dbm
  //                           ni_report->tnp = 0;
  //                           ni_report->has_tnp = 1;

  //                           ni_report->p0_nominal_pucch = flexran_get_p0_nominal_pucch(enb_id, 0);
  //                           ni_report->has_p0_nominal_pucch = 1;
  //                           cell_report[i]->noise_inter_report = ni_report;
  //                     }
  //           }
            

      
            
  // }

  return 0;

 error:

625 626 627 628 629 630 631 632 633 634 635
  for (i = 0; i < report_config->nr_ue; i++){

      if (ue_report[i]->rrc_measurements->neigh_meas != NULL){
          for (j = 0; j < flexran_get_rrc_num_ncell(mod_id, i); j++){

             free(ue_report[i]->rrc_measurements->neigh_meas->eutra_meas[j]);
        }
        free(ue_report[i]->rrc_measurements->neigh_meas);
      }
  }

636 637 638 639 640 641 642 643 644
  if (cell_report != NULL)
        free(cell_report);
  if (ue_report != NULL)
        free(ue_report);

  return -1;
}


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int flexran_agent_register_rrc_xface(mid_t mod_id, AGENT_RRC_xface *xface) {
  if (rrc_agent_registered[mod_id]) {
    LOG_E(RRC, "RRC agent for eNB %d is already registered\n", mod_id);
    return -1;
  }

//  xface->flexran_agent_send_update_rrc_stats = flexran_agent_send_update_rrc_stats;
  
  xface->flexran_agent_notify_ue_state_change = flexran_agent_ue_state_change;
  xface->flexran_trigger_rrc_measurements = flexran_trigger_rrc_measurements;

  rrc_agent_registered[mod_id] = 1;
  agent_rrc_xface[mod_id] = xface;

  return 0;
}

int flexran_agent_unregister_rrc_xface(mid_t mod_id, AGENT_RRC_xface *xface) {

  //xface->agent_ctxt = NULL;
//  xface->flexran_agent_send_update_rrc_stats = NULL;

  xface->flexran_agent_notify_ue_state_change = NULL;
  xface->flexran_trigger_rrc_measurements = NULL;
  rrc_agent_registered[mod_id] = 0;
  agent_rrc_xface[mod_id] = NULL;

  return 0;
}