flexran_agent_ran_api.c 29.4 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_ran_api.c
 * \brief FlexRAN RAN API abstraction 
 * \author shahab SHARIAT BAGHERI
 * \date 2017
 * \version 0.1
 */

#include "flexran_agent_ran_api.h"


/*
 * get generic info from RAN
 */



void * enb[NUM_MAX_ENB];
void * enb_ue[NUM_MAX_ENB];
void * enb_rrc[NUM_MAX_ENB];

void flexran_set_enb_vars(mid_t mod_id, ran_name_t ran){

  switch (ran){
  case RAN_LTE_OAI :
    enb[mod_id] =  (void *)&eNB_mac_inst[mod_id];
    enb_ue[mod_id] = (void *)&eNB_mac_inst[mod_id].UE_list;
    enb_rrc[mod_id] = (void *)&eNB_rrc_inst[mod_id];
    break;
  default :
    goto error;
  }

  return; 

 error:
  LOG_E(FLEXRAN_AGENT, "unknown RAN name %d\n", ran);
}

int flexran_get_current_time_ms (mid_t mod_id, int subframe_flag){

  if (subframe_flag == 1){
    return ((eNB_MAC_INST *)enb[mod_id])->frame*10 + ((eNB_MAC_INST *)enb[mod_id])->subframe;
  }else {
    return ((eNB_MAC_INST *)enb[mod_id])->frame*10;
  }
   
}

unsigned int flexran_get_current_frame (mid_t mod_id) {

  //  #warning "SFN will not be in [0-1023] when oaisim is used"
  return ((eNB_MAC_INST *)enb[mod_id])->frame;
  
}

unsigned int flexran_get_current_system_frame_num(mid_t mod_id) {
  return (flexran_get_current_frame(mod_id) %1024);
}

unsigned int flexran_get_current_subframe (mid_t mod_id) {

  return ((eNB_MAC_INST *)enb[mod_id])->subframe;
  
}

uint16_t flexran_get_sfn_sf (mid_t mod_id) {
  
  frame_t frame;
  sub_frame_t subframe;
  uint16_t sfn_sf, frame_mask, sf_mask;
  
  frame = (frame_t) flexran_get_current_system_frame_num(mod_id);
  subframe = (sub_frame_t) flexran_get_current_subframe(mod_id);
  frame_mask = ((1<<12) - 1);
  sf_mask = ((1<<4) - 1);
  sfn_sf = (subframe & sf_mask) | ((frame & frame_mask) << 4);
  
  return sfn_sf;
}

uint16_t flexran_get_future_sfn_sf (mid_t mod_id, int ahead_of_time) {
  
  frame_t frame;
  sub_frame_t subframe;
  uint16_t sfn_sf, frame_mask, sf_mask;
  
  frame = (frame_t) flexran_get_current_system_frame_num(mod_id);
  subframe = (sub_frame_t) flexran_get_current_subframe(mod_id);

  subframe = ((subframe + ahead_of_time) % 10);
  
  if (subframe < flexran_get_current_subframe(mod_id)) {
    frame = (frame + 1) % 1024;
  }
  
  int additional_frames = ahead_of_time / 10;
  frame = (frame + additional_frames) % 1024;
  
  frame_mask = ((1<<12) - 1);
  sf_mask = ((1<<4) - 1);
  sfn_sf = (subframe & sf_mask) | ((frame & frame_mask) << 4);
  
  return sfn_sf;
}

int flexran_get_num_ues (mid_t mod_id){

  return  ((UE_list_t *)enb_ue[mod_id])->num_UEs;
}

int flexran_get_ue_crnti (mid_t mod_id, mid_t ue_id) {

  return  UE_RNTI(mod_id, ue_id);
}

int flexran_get_ue_bsr (mid_t mod_id, mid_t ue_id, lcid_t lcid) {

  return ((UE_list_t *)enb_ue[mod_id])->UE_template[UE_PCCID(mod_id,ue_id)][ue_id].bsr_info[lcid];
}

int flexran_get_ue_phr (mid_t mod_id, mid_t ue_id) {

  return ((UE_list_t *)enb_ue[mod_id])->UE_template[UE_PCCID(mod_id,ue_id)][ue_id].phr_info;
}

int flexran_get_ue_wcqi (mid_t mod_id, mid_t ue_id) {
  LTE_eNB_UE_stats     *eNB_UE_stats     = NULL;
  eNB_UE_stats = mac_xface->get_eNB_UE_stats(mod_id, 0, UE_RNTI(mod_id, ue_id));
  return eNB_UE_stats->DL_cqi[0];

  //  return ((UE_list_t *)enb_ue[mod_id])->eNB_UE_stats[UE_PCCID(mod_id,ue_id)][ue_id].dl_cqi;
}

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int flexran_get_tx_queue_size(mid_t mod_id, mid_t ue_id, logical_chan_id_t channel_id) {
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  rnti_t rnti = flexran_get_ue_crnti(mod_id,ue_id);
  uint16_t frame = (uint16_t) flexran_get_current_frame(mod_id);
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  uint16_t subframe = (uint16_t) flexran_get_current_subframe(mod_id);
  mac_rlc_status_resp_t rlc_status = mac_rlc_status_ind(mod_id,rnti, mod_id, frame, subframe, ENB_FLAG_YES,MBMS_FLAG_NO, channel_id, 0);
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  return rlc_status.bytes_in_buffer;
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}

int flexran_get_hol_delay(mid_t mod_id, mid_t ue_id, logical_chan_id_t channel_id) {
  rnti_t rnti = flexran_get_ue_crnti(mod_id,ue_id);
  uint16_t frame = (uint16_t) flexran_get_current_frame(mod_id);
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  uint16_t subframe = (uint16_t) flexran_get_current_subframe(mod_id);
  mac_rlc_status_resp_t rlc_status = mac_rlc_status_ind(mod_id, rnti, mod_id, frame, subframe, ENB_FLAG_YES, MBMS_FLAG_NO, channel_id, 0);
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  return rlc_status.head_sdu_creation_time;
}

short flexran_get_TA(mid_t mod_id, mid_t ue_id, int CC_id) {
  
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  // UE_list_t *UE_list=&eNB_mac_inst[mod_id].UE_list;
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  int rnti;

  rnti = flexran_get_ue_crnti(mod_id, ue_id);

  LTE_eNB_UE_stats		*eNB_UE_stats = mac_xface->get_eNB_UE_stats(mod_id, CC_id, rnti);
  //ue_sched_ctl->ta_timer		      = 20;	// wait 20 subframes before taking TA measurement from PHY                                         
  switch (PHY_vars_eNB_g[mod_id][CC_id]->frame_parms.N_RB_DL) {
  case 6:
    return eNB_UE_stats->timing_advance_update;
  case 15:
    return eNB_UE_stats->timing_advance_update/2;
  case 25:
    return eNB_UE_stats->timing_advance_update/4;
  case 50:
    return eNB_UE_stats->timing_advance_update/8;
  case 75:
    return eNB_UE_stats->timing_advance_update/12;
  case 100:
    if (PHY_vars_eNB_g[mod_id][CC_id]->frame_parms.threequarter_fs == 0) {
      return eNB_UE_stats->timing_advance_update/16;
    } else {
      return eNB_UE_stats->timing_advance_update/12;
    }
  default:
    return 0;
  }
}

int flexran_get_ue_pmi(mid_t mod_id){

  /*Xenofon to check this*/

  return 0;
}


void flexran_update_TA(mid_t mod_id, mid_t ue_id, int CC_id) {
  
  UE_list_t *UE_list=&eNB_mac_inst[mod_id].UE_list;
  UE_sched_ctrl *ue_sched_ctl = &UE_list->UE_sched_ctrl[ue_id];

  if (ue_sched_ctl->ta_timer == 0) {
    
    // WE SHOULD PROTECT the eNB_UE_stats with a mutex here ...                                                                         
    //    LTE_eNB_UE_stats		*eNB_UE_stats = mac_xface->get_eNB_UE_stats(mod_id, CC_id, rnti);
    //ue_sched_ctl->ta_timer		      = 20;	// wait 20 subframes before taking TA measurement from PHY                                         
    ue_sched_ctl->ta_update = flexran_get_TA(mod_id, ue_id, CC_id);

    // clear the update in case PHY does not have a new measurement after timer expiry                                               
    //    eNB_UE_stats->timing_advance_update	      = 0;
  } else {
    ue_sched_ctl->ta_timer--;
    ue_sched_ctl->ta_update		      = 0;	// don't trigger a timing advance command      
  }
}

int flexran_get_MAC_CE_bitmap_TA(mid_t mod_id, mid_t ue_id,int CC_id) {
  
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  // UE_list_t			*UE_list      = &eNB_mac_inst[mod_id].UE_list;
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  rnti_t rnti = flexran_get_ue_crnti(mod_id,ue_id);
  LTE_eNB_UE_stats *eNB_UE_stats = mac_xface->get_eNB_UE_stats(mod_id,CC_id,rnti);
  
  if (eNB_UE_stats == NULL) {
    return 0;
  }

  if (flexran_get_TA(mod_id, ue_id, CC_id) != 0) {
    return PROTOCOL__FLEX_CE_TYPE__FLPCET_TA;
  } else {
    return 0;
  }

}

int flexran_get_active_CC(mid_t mod_id, mid_t ue_id) {
	return ((UE_list_t *)enb_ue[mod_id])->numactiveCCs[ue_id];
}

int flexran_get_current_RI(mid_t mod_id, mid_t ue_id, int CC_id) {
	LTE_eNB_UE_stats	*eNB_UE_stats = NULL;

	rnti_t			 rnti	      = flexran_get_ue_crnti(mod_id,ue_id);

	eNB_UE_stats			      = mac_xface->get_eNB_UE_stats(mod_id,CC_id,rnti);
	
	if (eNB_UE_stats == NULL) {
	  return 0;
	}

	return eNB_UE_stats[CC_id].rank;
}

int flexran_get_tpc(mid_t mod_id, mid_t ue_id) {
	LTE_eNB_UE_stats	*eNB_UE_stats = NULL;
	int32_t			 normalized_rx_power, target_rx_power;
	int			 tpc	      = 1;

	int			 pCCid	      = UE_PCCID(mod_id,ue_id);
	rnti_t			 rnti	      = flexran_get_ue_crnti(mod_id,ue_id);

	eNB_UE_stats = mac_xface->get_eNB_UE_stats(mod_id, pCCid, rnti);

	target_rx_power = mac_xface->get_target_pusch_rx_power(mod_id,pCCid);

	if (eNB_UE_stats == NULL) {
	  normalized_rx_power = target_rx_power;
	} else if (eNB_UE_stats->UL_rssi != NULL) {
	  normalized_rx_power = eNB_UE_stats->UL_rssi[0];
	} else {
	  normalized_rx_power = target_rx_power;
	}

	if (normalized_rx_power>(target_rx_power+1)) {
		tpc = 0;	//-1
	} else if (normalized_rx_power<(target_rx_power-1)) {
		tpc = 2;	//+1
	} else {
		tpc = 1;	//0
	}
	return tpc;
}

int flexran_get_harq(const mid_t mod_id, 
		     const uint8_t CC_id, 
		     const mid_t ue_id, 
		     const int frame, 
		     const uint8_t subframe, 
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		     uint8_t *pid, 
		     uint8_t *round,
         const uint8_t harq_flag)	{ //flag_id_status = 0 then id, else status
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	/*TODO: Add int TB in function parameters to get the status of the second TB. This can be done to by editing in
	 * get_ue_active_harq_pid function in line 272 file: phy_procedures_lte_eNB.c to add
	 * DLSCH_ptr = PHY_vars_eNB_g[Mod_id][CC_id]->dlsch_eNB[(uint32_t)UE_id][1];*/

  uint8_t harq_pid;
  uint8_t harq_round;
  

  uint16_t rnti = flexran_get_ue_crnti(mod_id,ue_id);
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  if (harq_flag == openair_harq_DL){
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      mac_xface->get_ue_active_harq_pid(mod_id,CC_id,rnti,frame,subframe,&harq_pid,&harq_round,openair_harq_DL);
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   } else if (harq_flag == openair_harq_UL){

     mac_xface->get_ue_active_harq_pid(mod_id,CC_id,rnti,frame,subframe,&harq_pid,&round,openair_harq_UL);    
   }
   else {

      LOG_W(FLEXRAN_AGENT,"harq_flag is not recongnized");
   }


  *pid = harq_pid;
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  *round = harq_round;
  /* if (round > 0) { */
  /*   *status = 1; */
  /* } else { */
  /*   *status = 0; */
  /* } */

  /* return 0; */
  return *round;
}

int flexran_get_p0_pucch_dbm(mid_t mod_id, mid_t ue_id, int CC_id) {
  LTE_eNB_UE_stats *eNB_UE_stats = NULL;
  uint32_t rnti = flexran_get_ue_crnti(mod_id,ue_id);
  
  eNB_UE_stats =  mac_xface->get_eNB_UE_stats(mod_id, CC_id, rnti);
  
  if (eNB_UE_stats == NULL) {
    return -1;
  }
  
  //	if(eNB_UE_stats->Po_PUCCH_update == 1) {
  return eNB_UE_stats->Po_PUCCH_dBm;
  //}
  //else
  //  return -1;
}

int flexran_get_p0_nominal_pucch(mid_t mod_id, int CC_id) {
  int32_t pucch_rx_received = mac_xface->get_target_pucch_rx_power(mod_id, CC_id);
  return pucch_rx_received;
}

int flexran_get_p0_pucch_status(mid_t mod_id, mid_t ue_id, int CC_id) {
  LTE_eNB_UE_stats *eNB_UE_stats = NULL;
  uint32_t rnti = flexran_get_ue_crnti(mod_id,ue_id);
  
  eNB_UE_stats =  mac_xface->get_eNB_UE_stats(mod_id, CC_id, rnti);
  return eNB_UE_stats->Po_PUCCH_update;
}

int flexran_update_p0_pucch(mid_t mod_id, mid_t ue_id, int CC_id) {
  LTE_eNB_UE_stats *eNB_UE_stats = NULL;
  uint32_t rnti = flexran_get_ue_crnti(mod_id,ue_id);
  
  eNB_UE_stats =  mac_xface->get_eNB_UE_stats(mod_id, CC_id, rnti);
  eNB_UE_stats->Po_PUCCH_update = 0;
  
  return 0;
}


/*
 * ************************************
 * Get Messages for eNB Configuration Reply
 * ************************************
 */

int flexran_get_hopping_offset(mid_t mod_id, int CC_id) {
	LTE_DL_FRAME_PARMS   *frame_parms;

	frame_parms = mac_xface->get_lte_frame_parms(mod_id, CC_id);
	return frame_parms->pusch_config_common.pusch_HoppingOffset;
}

int flexran_get_hopping_mode(mid_t mod_id, int CC_id) {
	LTE_DL_FRAME_PARMS   *frame_parms;

	frame_parms = mac_xface->get_lte_frame_parms(mod_id, CC_id);
	return frame_parms->pusch_config_common.hoppingMode;
}

int flexran_get_n_SB(mid_t mod_id, int CC_id) {
	LTE_DL_FRAME_PARMS   *frame_parms;

	frame_parms = mac_xface->get_lte_frame_parms(mod_id, CC_id);
	return frame_parms->pusch_config_common.n_SB;
}

int flexran_get_enable64QAM(mid_t mod_id, int CC_id) {
	LTE_DL_FRAME_PARMS   *frame_parms;

	frame_parms = mac_xface->get_lte_frame_parms(mod_id, CC_id);
	return frame_parms->pusch_config_common.enable64QAM;
}

int flexran_get_phich_duration(mid_t mod_id, int CC_id) {
	LTE_DL_FRAME_PARMS   *frame_parms;

	frame_parms = mac_xface->get_lte_frame_parms(mod_id, CC_id);
	return frame_parms->phich_config_common.phich_duration;
}

int flexran_get_phich_resource(mid_t mod_id, int CC_id) {
	LTE_DL_FRAME_PARMS   *frame_parms;

	frame_parms = mac_xface->get_lte_frame_parms(mod_id, CC_id);
	if(frame_parms->phich_config_common.phich_resource == oneSixth)
		return 0;
	else if(frame_parms->phich_config_common.phich_resource == half)
		return 1;
	else if(frame_parms->phich_config_common.phich_resource == one)
		return 2;
	else if(frame_parms->phich_config_common.phich_resource == two)
		return 3;

	return -1;
}

int flexran_get_n1pucch_an(mid_t mod_id, int CC_id) {
	LTE_DL_FRAME_PARMS   *frame_parms;

	frame_parms = mac_xface->get_lte_frame_parms(mod_id, CC_id);
	return frame_parms->pucch_config_common.n1PUCCH_AN;
}

int flexran_get_nRB_CQI(mid_t mod_id, int CC_id) {
	LTE_DL_FRAME_PARMS   *frame_parms;

	frame_parms = mac_xface->get_lte_frame_parms(mod_id, CC_id);
	return frame_parms->pucch_config_common.nRB_CQI;
}

int flexran_get_deltaPUCCH_Shift(mid_t mod_id, int CC_id) {
	LTE_DL_FRAME_PARMS   *frame_parms;

	frame_parms = mac_xface->get_lte_frame_parms(mod_id, CC_id);
	return frame_parms->pucch_config_common.deltaPUCCH_Shift;
}

int flexran_get_prach_ConfigIndex(mid_t mod_id, int CC_id) {
	LTE_DL_FRAME_PARMS   *frame_parms;

	frame_parms = mac_xface->get_lte_frame_parms(mod_id, CC_id);
	return frame_parms->prach_config_common.prach_ConfigInfo.prach_ConfigIndex;
}

int flexran_get_prach_FreqOffset(mid_t mod_id, int CC_id) {
	LTE_DL_FRAME_PARMS   *frame_parms;

	frame_parms = mac_xface->get_lte_frame_parms(mod_id, CC_id);
	return frame_parms->prach_config_common.prach_ConfigInfo.prach_FreqOffset;
}

int flexran_get_maxHARQ_Msg3Tx(mid_t mod_id, int CC_id) {
	LTE_DL_FRAME_PARMS   *frame_parms;

	frame_parms = mac_xface->get_lte_frame_parms(mod_id, CC_id);
	return frame_parms->maxHARQ_Msg3Tx;
}

int flexran_get_ul_cyclic_prefix_length(mid_t mod_id, int CC_id) {
	LTE_DL_FRAME_PARMS   *frame_parms;

	frame_parms = mac_xface->get_lte_frame_parms(mod_id, CC_id);
	return frame_parms->Ncp_UL;
}

int flexran_get_dl_cyclic_prefix_length(mid_t mod_id, int CC_id) {
	LTE_DL_FRAME_PARMS   *frame_parms;

	frame_parms = mac_xface->get_lte_frame_parms(mod_id, CC_id);
	return frame_parms->Ncp;
}

int flexran_get_cell_id(mid_t mod_id, int CC_id) {
	LTE_DL_FRAME_PARMS   *frame_parms;

	frame_parms = mac_xface->get_lte_frame_parms(mod_id, CC_id);
	return frame_parms->Nid_cell;
}

int flexran_get_srs_BandwidthConfig(mid_t mod_id, int CC_id) {
	LTE_DL_FRAME_PARMS   *frame_parms;

	frame_parms = mac_xface->get_lte_frame_parms(mod_id, CC_id);
	return frame_parms->soundingrs_ul_config_common.srs_BandwidthConfig;
}

int flexran_get_srs_SubframeConfig(mid_t mod_id, int CC_id) {
	LTE_DL_FRAME_PARMS   *frame_parms;

	frame_parms = mac_xface->get_lte_frame_parms(mod_id, CC_id);
	return frame_parms->soundingrs_ul_config_common.srs_SubframeConfig;
}

int flexran_get_srs_MaxUpPts(mid_t mod_id, int CC_id) {
	LTE_DL_FRAME_PARMS   *frame_parms;

	frame_parms = mac_xface->get_lte_frame_parms(mod_id, CC_id);
	return frame_parms->soundingrs_ul_config_common.srs_MaxUpPts;
}

int flexran_get_N_RB_DL(mid_t mod_id, int CC_id) {
	LTE_DL_FRAME_PARMS   *frame_parms;

	frame_parms = mac_xface->get_lte_frame_parms(mod_id, CC_id);
	return frame_parms->N_RB_DL;
}

int flexran_get_N_RB_UL(mid_t mod_id, int CC_id) {
	LTE_DL_FRAME_PARMS   *frame_parms;

	frame_parms = mac_xface->get_lte_frame_parms(mod_id, CC_id);
	return frame_parms->N_RB_UL;
}

int flexran_get_N_RBG(mid_t mod_id, int CC_id) {
  	LTE_DL_FRAME_PARMS   *frame_parms;

	frame_parms = mac_xface->get_lte_frame_parms(mod_id, CC_id);
	return frame_parms->N_RBG;
}

int flexran_get_subframe_assignment(mid_t mod_id, int CC_id) {
	LTE_DL_FRAME_PARMS   *frame_parms;

	frame_parms = mac_xface->get_lte_frame_parms(mod_id, CC_id);
	return frame_parms->tdd_config;
}

int flexran_get_special_subframe_assignment(mid_t mod_id, int CC_id) {
	LTE_DL_FRAME_PARMS   *frame_parms;

	frame_parms = mac_xface->get_lte_frame_parms(mod_id, CC_id);
	return frame_parms->tdd_config_S;
}

int flexran_get_ra_ResponseWindowSize(mid_t mod_id, int CC_id) {
  return enb_config_get()->properties[mod_id]->rach_raResponseWindowSize[CC_id];
}

int flexran_get_mac_ContentionResolutionTimer(mid_t mod_id, int CC_id) {
  return enb_config_get()->properties[mod_id]->rach_macContentionResolutionTimer[CC_id];
}

int flexran_get_duplex_mode(mid_t mod_id, int CC_id) {
	LTE_DL_FRAME_PARMS   *frame_parms;

	frame_parms = mac_xface->get_lte_frame_parms(mod_id, CC_id);
	if(frame_parms->frame_type == TDD)
		return PROTOCOL__FLEX_DUPLEX_MODE__FLDM_TDD;
	else if (frame_parms->frame_type == FDD)
		return PROTOCOL__FLEX_DUPLEX_MODE__FLDM_FDD;

	return -1;
}

long flexran_get_si_window_length(mid_t mod_id, int CC_id) {
	return  ((eNB_RRC_INST *)enb_rrc[mod_id])->carrier[CC_id].sib1->si_WindowLength;
}

int flexran_get_sib1_length(mid_t mod_id, int CC_id) {
	return  ((eNB_RRC_INST *)enb_rrc[mod_id])->carrier[CC_id].sizeof_SIB1;
}

int flexran_get_num_pdcch_symb(mid_t mod_id, int CC_id) {
  /* TODO: This should return the number of PDCCH symbols initially used by the cell CC_id */
  return 0;
  //(PHY_vars_UE_g[mod_id][CC_id]->lte_ue_pdcch_vars[mod_id]->num_pdcch_symbols);
}



/*
 * ************************************
 * Get Messages for UE Configuration Reply
 * ************************************
 */


int flexran_get_time_alignment_timer(mid_t mod_id, mid_t ue_id) {
  struct rrc_eNB_ue_context_s* ue_context_p = NULL;
  uint32_t rntiP = flexran_get_ue_crnti(mod_id,ue_id);
  
  ue_context_p = rrc_eNB_get_ue_context(&eNB_rrc_inst[mod_id],rntiP);
  if(ue_context_p != NULL) {
    if(ue_context_p->ue_context.mac_MainConfig != NULL) {
      return ue_context_p->ue_context.mac_MainConfig->timeAlignmentTimerDedicated;
    } else {
      return -1;
    }
  } else {
    return -1;
  }
}

int flexran_get_meas_gap_config(mid_t mod_id, mid_t ue_id) {
  struct rrc_eNB_ue_context_s* ue_context_p = NULL;
  uint32_t rntiP = flexran_get_ue_crnti(mod_id,ue_id);

  ue_context_p = rrc_eNB_get_ue_context(&eNB_rrc_inst[mod_id],rntiP);
  if(ue_context_p != NULL) {
    if(ue_context_p->ue_context.measGapConfig != NULL) {
      if(ue_context_p->ue_context.measGapConfig->present == MeasGapConfig_PR_setup) {
	if (ue_context_p->ue_context.measGapConfig->choice.setup.gapOffset.present == MeasGapConfig__setup__gapOffset_PR_gp0) {
	  return PROTOCOL__FLEX_MEAS_GAP_CONFIG_PATTERN__FLMGCP_GP1;
	} else if (ue_context_p->ue_context.measGapConfig->choice.setup.gapOffset.present == MeasGapConfig__setup__gapOffset_PR_gp1) {
	  return PROTOCOL__FLEX_MEAS_GAP_CONFIG_PATTERN__FLMGCP_GP2;
	} else {
	  return PROTOCOL__FLEX_MEAS_GAP_CONFIG_PATTERN__FLMGCP_OFF;
	}
      }
    }
  }
  return -1;
}


int flexran_get_meas_gap_config_offset(mid_t mod_id, mid_t ue_id) {
  struct rrc_eNB_ue_context_s* ue_context_p = NULL;
  uint32_t rntiP = flexran_get_ue_crnti(mod_id,ue_id);
  
  ue_context_p = rrc_eNB_get_ue_context(&eNB_rrc_inst[mod_id],rntiP);
  
  if(ue_context_p != NULL) {
    if(ue_context_p->ue_context.measGapConfig != NULL){
      if(ue_context_p->ue_context.measGapConfig->present == MeasGapConfig_PR_setup) {
	if (ue_context_p->ue_context.measGapConfig->choice.setup.gapOffset.present == MeasGapConfig__setup__gapOffset_PR_gp0) {
	  return ue_context_p->ue_context.measGapConfig->choice.setup.gapOffset.choice.gp0;
	} else if (ue_context_p->ue_context.measGapConfig->choice.setup.gapOffset.present == MeasGapConfig__setup__gapOffset_PR_gp1) {
	  return ue_context_p->ue_context.measGapConfig->choice.setup.gapOffset.choice.gp0;
	} 
      }
    }
  }
  return -1;
}

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int flexran_get_rrc_status(const mid_t mod_id,  const rnti_t  rntiP){

  struct rrc_eNB_ue_context_s* ue_context_p = NULL;

  ue_context_p = rrc_eNB_get_ue_context(&eNB_rrc_inst[mod_id],rntiP);

  if (ue_context_p != NULL) {
    return(ue_context_p->ue_context.Status);
  } else {
    return RRC_INACTIVE;
  }

}

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int flexran_get_ue_aggregated_max_bitrate_dl (mid_t mod_id, mid_t ue_id) {
	return ((UE_list_t *)enb_ue[mod_id])->UE_sched_ctrl[ue_id].ue_AggregatedMaximumBitrateDL;
}

int flexran_get_ue_aggregated_max_bitrate_ul (mid_t mod_id, mid_t ue_id) {
	return ((UE_list_t *)enb_ue[mod_id])->UE_sched_ctrl[ue_id].ue_AggregatedMaximumBitrateUL;
}

int flexran_get_half_duplex(mid_t ue_id) {
  // TODO
	//int halfduplex = 0;
	//int bands_to_scan = ((UE_RRC_INST *)enb_ue_rrc[ue_id])->UECap->UE_EUTRA_Capability->rf_Parameters.supportedBandListEUTRA.list.count;
	//for (int i =0; i < bands_to_scan; i++){
		//if(((UE_RRC_INST *)enb_ue_rrc[ue_id])->UECap->UE_EUTRA_Capability->rf_Parameters.supportedBandListEUTRA.list.array[i]->halfDuplex > 0)
		//	halfduplex = 1;
	//}
	//return halfduplex;
  return 0;
}

int flexran_get_intra_sf_hopping(mid_t ue_id) {
	//TODO:Get proper value
	//temp = (((UE_RRC_INST *)enb_ue_rrc[ue_id])->UECap->UE_EUTRA_Capability->featureGroupIndicators->buf);
	//return (0 & ( 1 << (31)));
  return 0;
}

int flexran_get_type2_sb_1(mid_t ue_id) {
	//TODO:Get proper value
	//uint8_t temp = 0;
	//temp = (((UE_RRC_INST *)enb_ue_rrc[ue_id])->UECap->UE_EUTRA_Capability->featureGroupIndicators->buf);
	//return (temp & ( 1 << (11)));
  return 0;
}

int flexran_get_ue_category(mid_t ue_id) {
	//TODO:Get proper value
	//return (((UE_RRC_INST *)enb_ue_rrc[ue_id])->UECap->UE_EUTRA_Capability->ue_Category);
  return 0;
}

int flexran_get_res_alloc_type1(mid_t ue_id) {
	//TODO:Get proper value
	//uint8_t temp = 0;
	//temp = (((UE_RRC_INST *)enb_ue_rrc[ue_id])->UECap->UE_EUTRA_Capability->featureGroupIndicators->buf);
	//return (temp & ( 1 << (30)));
  return 0;
}

int flexran_get_ue_transmission_mode(mid_t mod_id, mid_t ue_id) {
  struct rrc_eNB_ue_context_s* ue_context_p = NULL;
  uint32_t rntiP = flexran_get_ue_crnti(mod_id,ue_id);
  
  ue_context_p = rrc_eNB_get_ue_context(&eNB_rrc_inst[mod_id],rntiP);
  
  if(ue_context_p != NULL) {
    if(ue_context_p->ue_context.physicalConfigDedicated != NULL){
      return ue_context_p->ue_context.physicalConfigDedicated->antennaInfo->choice.explicitValue.transmissionMode;
    } else {
      return -1;
    }
  } else {
    return -1;
  }
}

int flexran_get_tti_bundling(mid_t mod_id, mid_t ue_id) {
  struct rrc_eNB_ue_context_s* ue_context_p = NULL;
  uint32_t rntiP = flexran_get_ue_crnti(mod_id,ue_id);
  
  ue_context_p = rrc_eNB_get_ue_context(&eNB_rrc_inst[mod_id],rntiP);
  if(ue_context_p != NULL) {
    if(ue_context_p->ue_context.mac_MainConfig != NULL){
      return ue_context_p->ue_context.mac_MainConfig->ul_SCH_Config->ttiBundling;
    } else {
      return -1;
    }
  }
  else {
    return -1;
  }
}

int flexran_get_maxHARQ_TX(mid_t mod_id, mid_t ue_id) {
  struct rrc_eNB_ue_context_s* ue_context_p = NULL;
  uint32_t rntiP = flexran_get_ue_crnti(mod_id,ue_id);
  
  ue_context_p = rrc_eNB_get_ue_context(&eNB_rrc_inst[mod_id],rntiP);
  if(ue_context_p != NULL) {
    if(ue_context_p->ue_context.mac_MainConfig != NULL){
      return *ue_context_p->ue_context.mac_MainConfig->ul_SCH_Config->maxHARQ_Tx;
    }
  }
  return -1;
}

int flexran_get_beta_offset_ack_index(mid_t mod_id, mid_t ue_id) {
  struct rrc_eNB_ue_context_s* ue_context_p = NULL;
  uint32_t rntiP = flexran_get_ue_crnti(mod_id,ue_id);
  
  ue_context_p = rrc_eNB_get_ue_context(&eNB_rrc_inst[mod_id],rntiP);
  if(ue_context_p != NULL) {
    if(ue_context_p->ue_context.physicalConfigDedicated != NULL){
      return ue_context_p->ue_context.physicalConfigDedicated->pusch_ConfigDedicated->betaOffset_ACK_Index;
    } else {
      return -1;
    } 
  } else {
    return -1;
  }
}

int flexran_get_beta_offset_ri_index(mid_t mod_id, mid_t ue_id) {
  struct rrc_eNB_ue_context_s* ue_context_p = NULL;
  uint32_t rntiP = flexran_get_ue_crnti(mod_id,ue_id);
  
  ue_context_p = rrc_eNB_get_ue_context(&eNB_rrc_inst[mod_id],rntiP);
  if(ue_context_p != NULL) {
    if(ue_context_p->ue_context.physicalConfigDedicated != NULL){
      return ue_context_p->ue_context.physicalConfigDedicated->pusch_ConfigDedicated->betaOffset_RI_Index;
    } else {
      return -1;
    }
  } else {
    return -1;
  }
}

int flexran_get_beta_offset_cqi_index(mid_t mod_id, mid_t ue_id) {
  struct rrc_eNB_ue_context_s* ue_context_p = NULL;
  uint32_t rntiP = flexran_get_ue_crnti(mod_id,ue_id);
  
  ue_context_p = rrc_eNB_get_ue_context(&eNB_rrc_inst[mod_id],rntiP);
  if(ue_context_p != NULL) {
    if(ue_context_p->ue_context.physicalConfigDedicated != NULL){
      return ue_context_p->ue_context.physicalConfigDedicated->pusch_ConfigDedicated->betaOffset_CQI_Index;
    } else {
      return -1;
    }
  }
  else {
    return -1;
  }
}

int flexran_get_simultaneous_ack_nack_cqi(mid_t mod_id, mid_t ue_id) {
  struct rrc_eNB_ue_context_s* ue_context_p = NULL;
  uint32_t rntiP = flexran_get_ue_crnti(mod_id,ue_id);
  
  ue_context_p = rrc_eNB_get_ue_context(&eNB_rrc_inst[mod_id],rntiP);
  if(ue_context_p != NULL) {
    if(ue_context_p->ue_context.physicalConfigDedicated != NULL){
      if (ue_context_p->ue_context.physicalConfigDedicated->cqi_ReportConfig->cqi_ReportPeriodic != NULL) {
	return ue_context_p->ue_context.physicalConfigDedicated->cqi_ReportConfig->cqi_ReportPeriodic->choice.setup.simultaneousAckNackAndCQI;
      }
    }
  }
  return -1;
}

int flexran_get_ack_nack_simultaneous_trans(mid_t mod_id,mid_t ue_id) {
	return (&eNB_rrc_inst[mod_id])->carrier[0].sib2->radioResourceConfigCommon.soundingRS_UL_ConfigCommon.choice.setup.ackNackSRS_SimultaneousTransmission;
}

int flexran_get_aperiodic_cqi_rep_mode(mid_t mod_id,mid_t ue_id) {
  struct rrc_eNB_ue_context_s* ue_context_p = NULL;
  uint32_t rntiP = flexran_get_ue_crnti(mod_id,ue_id);
  
  ue_context_p = rrc_eNB_get_ue_context(&eNB_rrc_inst[mod_id],rntiP);
  
  if(ue_context_p != NULL) {
    if(ue_context_p->ue_context.physicalConfigDedicated != NULL){
      return *ue_context_p->ue_context.physicalConfigDedicated->cqi_ReportConfig->cqi_ReportModeAperiodic;
    }
  }
  return -1;
}

int flexran_get_tdd_ack_nack_feedback(mid_t mod_id, mid_t ue_id) {
  // TODO: This needs fixing
  return -1;

  /* struct rrc_eNB_ue_context_s* ue_context_p = NULL; */
  /* uint32_t rntiP = flexran_get_ue_crnti(mod_id,ue_id); */
  
  /* ue_context_p = rrc_eNB_get_ue_context(&eNB_rrc_inst[mod_id],rntiP); */
  
  /* if(ue_context_p != NULL) { */
  /*   if(ue_context_p->ue_context.physicalConfigDedicated != NULL){ */
  /*     return ue_context_p->ue_context.physicalConfigDedicated->pucch_ConfigDedicated->tdd_AckNackFeedbackMode; */
  /*   } else { */
  /*     return -1; */
  /*   } */
  /* } else { */
  /*   return -1; */
  /* } */
}

int flexran_get_ack_nack_repetition_factor(mid_t mod_id, mid_t ue_id) {
  struct rrc_eNB_ue_context_s* ue_context_p = NULL;
  uint32_t rntiP = flexran_get_ue_crnti(mod_id,ue_id);
  
  ue_context_p = rrc_eNB_get_ue_context(&eNB_rrc_inst[mod_id],rntiP);
  if(ue_context_p != NULL) {
    if(ue_context_p->ue_context.physicalConfigDedicated != NULL){
      return ue_context_p->ue_context.physicalConfigDedicated->pucch_ConfigDedicated->ackNackRepetition.choice.setup.repetitionFactor;
    } else {
      return -1;
    }
  } else {
    return -1;
  }
}

int flexran_get_extended_bsr_size(mid_t mod_id, mid_t ue_id) {
  //TODO: need to double check
  struct rrc_eNB_ue_context_s* ue_context_p = NULL;
  uint32_t rntiP = flexran_get_ue_crnti(mod_id,ue_id);

  ue_context_p = rrc_eNB_get_ue_context(&eNB_rrc_inst[mod_id],rntiP);
  if(ue_context_p != NULL) {
    if(ue_context_p->ue_context.mac_MainConfig != NULL){
      if(ue_context_p->ue_context.mac_MainConfig->ext2 != NULL){
	long val = (*(ue_context_p->ue_context.mac_MainConfig->ext2->mac_MainConfig_v1020->extendedBSR_Sizes_r10));
	if (val > 0) {
	  return 1;
	}
      }
    }
  }
  return -1;
}

int flexran_get_ue_transmission_antenna(mid_t mod_id, mid_t ue_id) {
  struct rrc_eNB_ue_context_s* ue_context_p = NULL;
  uint32_t rntiP = flexran_get_ue_crnti(mod_id,ue_id);
  
  ue_context_p = rrc_eNB_get_ue_context(&eNB_rrc_inst[mod_id],rntiP);
  
  if(ue_context_p != NULL) {
    if(ue_context_p->ue_context.physicalConfigDedicated != NULL){
      if(ue_context_p->ue_context.physicalConfigDedicated->antennaInfo->choice.explicitValue.ue_TransmitAntennaSelection.choice.setup == AntennaInfoDedicated__ue_TransmitAntennaSelection__setup_closedLoop) {
	return 2;
      } else if(ue_context_p->ue_context.physicalConfigDedicated->antennaInfo->choice.explicitValue.ue_TransmitAntennaSelection.choice.setup == AntennaInfoDedicated__ue_TransmitAntennaSelection__setup_openLoop) {
	return 1;
      } else {
	return 0;
      }
    } else {
      return -1;
    }
  } else {
    return -1;
  }
}

int flexran_get_lcg(mid_t ue_id, mid_t lc_id) {
  if (UE_mac_inst == NULL) {
    return -1;
  }
  if(UE_mac_inst[ue_id].logicalChannelConfig[lc_id] != NULL) {
    return *UE_mac_inst[ue_id].logicalChannelConfig[lc_id]->ul_SpecificParameters->logicalChannelGroup;
  } else {
    return -1;
  }
}

int flexran_get_direction(mid_t ue_id, mid_t lc_id) {
	/*TODO: fill with the value for the rest of LCID*/
  if(lc_id == DCCH || lc_id == DCCH1) {
    return 2;
  } else if(lc_id == DTCH) {
    return 1;
  } else {
    return -1;
  }
}

int flexran_get_antenna_ports(mid_t mod_id, int CC_id){

  LTE_DL_FRAME_PARMS   *frame_parms;

  frame_parms = mac_xface->get_lte_frame_parms(mod_id, CC_id);
  return frame_parms->nb_antenna_ports_eNB;

958
}
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float flexran_agent_get_operating_dl_freq (mid_t cc_id) {
        const Enb_properties_array_t* enb_properties = enb_config_get();
        return (enb_properties->properties[0]->downlink_frequency[cc_id] / 1000000);
}