flexran_agent_scheduler_dataplane.c 17.8 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
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 * the OAI Public License, Version 1.1  (the "License"); you may not use this file
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 * 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
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 */
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/*! \file flexran_agent_scheduler_dataplane.c
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 * \brief data plane procedures related to eNB scheduling
 * \author Xenofon Foukas
 * \date 2016
 * \email: x.foukas@sms.ed.ac.uk
 * \version 0.1
 * @ingroup _mac

 */

#include "assertions.h"
#include "PHY/defs.h"
#include "PHY/extern.h"

#include "SCHED/defs.h"
#include "SCHED/extern.h"

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#include "LAYER2/MAC/flexran_agent_mac_proto.h"
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#include "LAYER2/MAC/defs.h"
#include "LAYER2/MAC/proto.h"
#include "LAYER2/MAC/extern.h"
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#include "LAYER2/MAC/flexran_dci_conversions.h"
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#include "UTIL/LOG/log.h"
#include "UTIL/LOG/vcd_signal_dumper.h"
#include "UTIL/OPT/opt.h"
#include "OCG.h"
#include "OCG_extern.h"

#include "RRC/LITE/extern.h"
#include "RRC/L2_INTERFACE/openair_rrc_L2_interface.h"

#include "header.pb-c.h"
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#include "flexran.pb-c.h"
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#include "flexran_agent_extern.h"
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#include "flexran_agent_common.h"

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#include "SIMULATION/TOOLS/defs.h"	// for taus

void
flexran_apply_dl_scheduling_decisions(mid_t mod_id,
				      uint32_t frame,
				      uint32_t subframe,
				      int *mbsfn_flag,
				      Protocol__FlexranMessage *
				      dl_scheduling_info)
{

    Protocol__FlexDlMacConfig *mac_config =
	dl_scheduling_info->dl_mac_config_msg;

    // Check if there is anything to schedule for random access
    if (mac_config->n_dl_rar > 0) {
	/*TODO: call the random access data plane function */
    }
    // Check if there is anything to schedule for paging/broadcast
    if (mac_config->n_dl_broadcast > 0) {
	/*TODO: call the broadcast/paging data plane function */
    }
    // Check if there is anything to schedule for the UEs
    if (mac_config->n_dl_ue_data > 0) {
	flexran_apply_ue_spec_scheduling_decisions(mod_id, frame, subframe,
						   mbsfn_flag,
						   mac_config->
						   n_dl_ue_data,
						   mac_config->dl_ue_data);
    }

}

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void
flexran_apply_ue_spec_scheduling_decisions(mid_t mod_id,
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					   uint32_t frame,
					   uint32_t subframe,
					   int *mbsfn_flag,
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					   uint32_t n_dl_ue_data,
					   Protocol__FlexDlData **
					   dl_ue_data)
{

    uint8_t CC_id;
    int UE_id;
    mac_rlc_status_resp_t rlc_status;
    unsigned char ta_len = 0;
    unsigned char header_len = 0, header_len_tmp = 0;
    unsigned char sdu_lcids[11], offset, num_sdus = 0;
    uint16_t nb_rb;
    uint16_t TBS, sdu_lengths[11], rnti, padding = 0, post_padding = 0;
    unsigned char dlsch_buffer[MAX_DLSCH_PAYLOAD_BYTES];
    uint8_t round = 0;
    uint8_t harq_pid = 0;
    //  LTE_DL_FRAME_PARMS   *frame_parms[MAX_NUM_CCs];
    LTE_eNB_UE_stats *eNB_UE_stats = NULL;
    uint16_t sdu_length_total = 0;
    short ta_update = 0;
    eNB_MAC_INST *eNB = &eNB_mac_inst[mod_id];
    UE_list_t *UE_list = &eNB->UE_list;
    //  static int32_t          tpc_accumulated=0;
    UE_sched_ctrl *ue_sched_ctl;

    int last_sdu_header_len = 0;

    int i, j;

    Protocol__FlexDlData *dl_data;
    Protocol__FlexDlDci *dl_dci;

    uint32_t rlc_size, n_lc, lcid;

    // For each UE-related command
    for (i = 0; i < n_dl_ue_data; i++) {

	dl_data = dl_ue_data[i];
	dl_dci = dl_data->dl_dci;

	CC_id = dl_data->serv_cell_index;
	//    frame_parms[CC_id] = mac_xface->get_lte_frame_parms(mod_id, CC_id);

	rnti = dl_data->rnti;
	UE_id = find_ue(rnti, PHY_vars_eNB_g[mod_id][CC_id]);

	ue_sched_ctl = &UE_list->UE_sched_ctrl[UE_id];
	eNB_UE_stats = mac_xface->get_eNB_UE_stats(mod_id, CC_id, rnti);

	round = dl_dci->rv[0];
	harq_pid = dl_dci->harq_process;

	//LOG_I(FLEXRAN_AGENT, "[Frame %d][Subframe %d] Scheduling harq %d\n", frame, subframe, harq_pid);
	//    LOG_I(FLEXRAN_AGENT, "[Frame %d][Subframe %d]Now scheduling harq_pid %d (round %d)\n", frame, subframe, harq_pid, round);

	// If this is a new transmission
	if (round == 0) {
	    // First we have to deal with the creation of the PDU based on the message instructions
	    rlc_status.bytes_in_buffer = 0;

	    TBS = dl_dci->tbs_size[0];

	    if (dl_data->n_ce_bitmap > 0) {
		//Check if there is TA command and set the length appropriately
		ta_len =
		    (dl_data->
		     ce_bitmap[0] & PROTOCOL__FLEX_CE_TYPE__FLPCET_TA) ? 2
		    : 0;
	    }

	    num_sdus = 0;
	    sdu_length_total = 0;

	    n_lc = dl_data->n_rlc_pdu;
	    // Go through each one of the channel commands and create SDUs
	    header_len = 0;
	    last_sdu_header_len = 0;
	    for (j = 0; j < n_lc; j++) {
		sdu_lengths[j] = 0;
		lcid =
		    dl_data->rlc_pdu[j]->rlc_pdu_tb[0]->logical_channel_id;
		rlc_size = dl_data->rlc_pdu[j]->rlc_pdu_tb[0]->size;
		LOG_D(MAC,
		      "[TEST] [eNB %d] [Frame %d] [Subframe %d], LCID %d, CC_id %d, Requesting %d bytes from RLC (RRC message)\n",
		      mod_id, frame, subframe, lcid, CC_id, rlc_size);
		if (rlc_size > 0) {

		    rlc_status = mac_rlc_status_ind(mod_id,
						    rnti,
						    mod_id,
						    frame,
						    subframe,
						    ENB_FLAG_YES,
						    MBMS_FLAG_NO, lcid, 0);

		    if (rlc_status.bytes_in_buffer > 0) {

			if (rlc_status.bytes_in_buffer < rlc_size) {
			    rlc_size = rlc_status.bytes_in_buffer;
			}

			if (rlc_size <= 2) {
			    rlc_size = 3;
			}

			rlc_status = mac_rlc_status_ind(mod_id, rnti, mod_id, frame, subframe, ENB_FLAG_YES, MBMS_FLAG_NO, lcid, rlc_size);	// transport block set size

			LOG_D(MAC,
			      "[TEST] RLC can give %d bytes for LCID %d during second call\n",
			      rlc_status.bytes_in_buffer, lcid);

			if (rlc_status.bytes_in_buffer > 0) {

			    sdu_lengths[j] = mac_rlc_data_req(mod_id, rnti, mod_id, frame, ENB_FLAG_YES, MBMS_FLAG_NO, lcid, rlc_size,	//not used
							      (char *)
							      &dlsch_buffer
							      [sdu_length_total]);

			    LOG_D(MAC,
				  "[eNB %d][LCID %d] CC_id %d Got %d bytes from RLC\n",
				  mod_id, lcid, CC_id, sdu_lengths[j]);
			    sdu_length_total += sdu_lengths[j];
			    sdu_lcids[j] = lcid;

			    UE_list->
				eNB_UE_stats[CC_id][UE_id].num_pdu_tx[lcid]
				+= 1;
			    UE_list->
				eNB_UE_stats[CC_id][UE_id].num_bytes_tx
				[lcid] += sdu_lengths[j];

			    if (sdu_lengths[j] < 128) {
				header_len += 2;
				last_sdu_header_len = 2;
			    } else {
				header_len += 3;
				last_sdu_header_len = 3;
			    }
			    num_sdus++;
			}
		    }
		}
	    }			// SDU creation end


	    if (((sdu_length_total + header_len + ta_len) > 0)) {

		header_len_tmp = header_len;

		// If we have only a single SDU, header length becomes 1
		if ((num_sdus) == 1) {
		    //if (header_len == 2 || header_len == 3) {
		    header_len = 1;
		} else {
		    header_len = (header_len - last_sdu_header_len) + 1;
		}

		// If we need a 1 or 2 bit padding or no padding at all
		if ((TBS - header_len - sdu_length_total - ta_len) <= 2 || (TBS - header_len - sdu_length_total - ta_len) > TBS) {	//protect from overflow
		    padding =
			(TBS - header_len - sdu_length_total - ta_len);
		    post_padding = 0;
		} else {	// The last sdu needs to have a length field, since we add padding
		    padding = 0;
		    header_len = header_len_tmp;
		    post_padding = TBS - sdu_length_total - header_len - ta_len;	// 1 is for the postpadding header
		}

		if (ta_len > 0) {
		    // Reset the measurement
		    ta_update = flexran_get_TA(mod_id, UE_id, CC_id);
		    ue_sched_ctl->ta_timer = 20;
		    eNB_UE_stats->timing_advance_update = 0;
		} else {
		    ta_update = 0;
		}

		// If there is nothing to schedule, just leave
		if ((sdu_length_total) <= 0) {
		    harq_pid_updated[UE_id][harq_pid] = 1;
		    harq_pid_round[UE_id][harq_pid] = 0;
		    continue;
		}
		//      LOG_I(FLEXRAN_AGENT, "[Frame %d][Subframe %d] TBS is %d and bytes are %d\n", frame, subframe, TBS, sdu_length_total);

		offset = generate_dlsch_header((unsigned char *) UE_list->DLSCH_pdu[CC_id][0][UE_id].payload[0], num_sdus,	//num_sdus
					       sdu_lengths,	//
					       sdu_lcids, 255,	// no drx
					       ta_update,	// timing advance
					       NULL,	// contention res id
					       padding, post_padding);

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#ifdef DEBUG_eNB_SCHEDULER
		LOG_T(MAC, "[eNB %d] First 16 bytes of DLSCH : \n");

		for (i = 0; i < 16; i++) {
		    LOG_T(MAC, "%x.", dlsch_buffer[i]);
		}

		LOG_T(MAC, "\n");
#endif
		// cycle through SDUs and place in dlsch_buffer
		memcpy(&UE_list->DLSCH_pdu[CC_id][0][UE_id].
		       payload[0][offset], dlsch_buffer, sdu_length_total);
		// memcpy(&eNB_mac_inst[0].DLSCH_pdu[0][0].payload[0][offset],dcch_buffer,sdu_lengths[0]);

		// fill remainder of DLSCH with random data
		for (j = 0; j < (TBS - sdu_length_total - offset); j++) {
		    UE_list->DLSCH_pdu[CC_id][0][UE_id].payload[0][offset +
								   sdu_length_total
								   + j] =
			(char) (taus() & 0xff);
		}

		//eNB_mac_inst[0].DLSCH_pdu[0][0].payload[0][offset+sdu_lengths[0]+j] = (char)(taus()&0xff);
		if (opt_enabled == 1) {
		    trace_pdu(1,
			      (uint8_t *)
			      UE_list->DLSCH_pdu[CC_id][0][UE_id].
			      payload[0], TBS, mod_id, 3, UE_RNTI(mod_id,
								  UE_id),
			      eNB->frame, eNB->subframe, 0, 0);
		    LOG_D(OPT,
			  "[eNB %d][DLSCH] CC_id %d Frame %d  rnti %x  with size %d\n",
			  mod_id, CC_id, frame, UE_RNTI(mod_id, UE_id),
			  TBS);
		}
		// store stats
		eNB->eNB_stats[CC_id].dlsch_bytes_tx += sdu_length_total;
		eNB->eNB_stats[CC_id].dlsch_pdus_tx += 1;
		UE_list->eNB_UE_stats[CC_id][UE_id].dl_cqi =
		    eNB_UE_stats->DL_cqi[0];

		UE_list->eNB_UE_stats[CC_id][UE_id].crnti = rnti;
		UE_list->eNB_UE_stats[CC_id][UE_id].rrc_status =
		    mac_eNB_get_rrc_status(mod_id, rnti);
		UE_list->eNB_UE_stats[CC_id][UE_id].harq_pid = harq_pid;
		UE_list->eNB_UE_stats[CC_id][UE_id].harq_round = round;

		//nb_rb = UE_list->UE_template[CC_id][UE_id].nb_rb[harq_pid];
		//Find the number of resource blocks and set them to the template for retransmissions
		nb_rb = get_min_rb_unit(mod_id, CC_id);
		uint16_t stats_tbs =
		    mac_xface->get_TBS_DL(dl_dci->mcs[0], nb_rb);

		while (stats_tbs < TBS) {
		    nb_rb += get_min_rb_unit(mod_id, CC_id);
		    stats_tbs =
			mac_xface->get_TBS_DL(dl_dci->mcs[0], nb_rb);
		}

		//      LOG_I(FLEXRAN_AGENT, "The MCS was %d\n", dl_dci->mcs[0]);

		UE_list->eNB_UE_stats[CC_id][UE_id].rbs_used = nb_rb;
		UE_list->eNB_UE_stats[CC_id][UE_id].total_rbs_used +=
		    nb_rb;
		UE_list->eNB_UE_stats[CC_id][UE_id].dlsch_mcs1 =
		    dl_dci->mcs[0];
		UE_list->eNB_UE_stats[CC_id][UE_id].dlsch_mcs2 =
		    dl_dci->mcs[0];
		UE_list->eNB_UE_stats[CC_id][UE_id].TBS = TBS;

		UE_list->eNB_UE_stats[CC_id][UE_id].overhead_bytes =
		    TBS - sdu_length_total;
		UE_list->eNB_UE_stats[CC_id][UE_id].total_sdu_bytes +=
		    sdu_length_total;
		UE_list->eNB_UE_stats[CC_id][UE_id].total_pdu_bytes += TBS;
		UE_list->eNB_UE_stats[CC_id][UE_id].total_num_pdus += 1;

		//eNB_UE_stats->dlsch_mcs1 = cqi_to_mcs[eNB_UE_stats->DL_cqi[0]];
		//eNB_UE_stats->dlsch_mcs1 = cmin(eNB_UE_stats->dlsch_mcs1, openair_daq_vars.target_ue_dl_mcs);
	    } else {
		LOG_D(FLEXRAN_AGENT,
		      "No need to schedule a dci after all. Just drop it\n");
		harq_pid_updated[UE_id][harq_pid] = 1;
		harq_pid_round[UE_id][harq_pid] = 0;
		continue;
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	    }
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	} else {
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	    // No need to create anything apart of DCI in case of retransmission
	    /*TODO: Must add these */
	    //      eNB_UE_stats->dlsch_trials[round]++;
	    //UE_list->eNB_UE_stats[CC_id][UE_id].num_retransmission+=1;
	    //UE_list->eNB_UE_stats[CC_id][UE_id].rbs_used_retx=nb_rb;
	    //UE_list->eNB_UE_stats[CC_id][UE_id].total_rbs_used_retx+=nb_rb;
	    //UE_list->eNB_UE_stats[CC_id][UE_id].ncce_used_retx=nCCECC_id];
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	}

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	//    UE_list->UE_template[CC_id][UE_id].oldNDI[dl_dci->harq_process] = dl_dci->ndi[0];
	//    eNB_UE_stats->dlsch_mcs1 = dl_dci->mcs[0];
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	//Fill the proper DCI of OAI
	flexran_fill_oai_dci(mod_id, CC_id, rnti, dl_dci);
    }
}
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void
flexran_fill_oai_dci(mid_t mod_id, uint32_t CC_id, uint32_t rnti,
		     Protocol__FlexDlDci * dl_dci)
{
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    void *DLSCH_dci = NULL;
    DCI_PDU *DCI_pdu;
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    unsigned char harq_pid = 0;
    //  unsigned char round = 0;
    LTE_DL_FRAME_PARMS *frame_parms[MAX_NUM_CCs];
    int size_bits = 0, size_bytes = 0;
    eNB_MAC_INST *eNB = &eNB_mac_inst[mod_id];
    UE_list_t *UE_list = &eNB->UE_list;
    LTE_eNB_UE_stats *eNB_UE_stats = NULL;

    int UE_id = find_ue(rnti, PHY_vars_eNB_g[mod_id][CC_id]);

    uint32_t format;

    harq_pid = dl_dci->harq_process;
    //  round = dl_dci->rv[0];

    // Note this code is for a specific DCI format
    DLSCH_dci =
	(void *) UE_list->UE_template[CC_id][UE_id].DLSCH_DCI[harq_pid];
    DCI_pdu = &eNB->common_channels[CC_id].DCI_pdu;

    frame_parms[CC_id] = mac_xface->get_lte_frame_parms(mod_id, CC_id);

    if (dl_dci->has_tpc == 1) {
	// Check if tpc has been set and reset measurement */
	if ((dl_dci->tpc == 0) || (dl_dci->tpc == 2)) {
	    eNB_UE_stats =
		mac_xface->get_eNB_UE_stats(mod_id, CC_id, rnti);
	    eNB_UE_stats->Po_PUCCH_update = 0;
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	}
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    }


    switch (frame_parms[CC_id]->N_RB_DL) {
    case 6:
	if (frame_parms[CC_id]->frame_type == TDD) {
	    if (dl_dci->format == PROTOCOL__FLEX_DCI_FORMAT__FLDCIF_1) {
		FILL_DCI_TDD_1(DCI1_1_5MHz_TDD_t, DLSCH_dci, dl_dci);
		size_bytes = sizeof(DCI1_1_5MHz_TDD_t);
		size_bits = sizeof_DCI1_1_5MHz_TDD_t;
	    } else if (dl_dci->format ==
		       PROTOCOL__FLEX_DCI_FORMAT__FLDCIF_2A) {
		//TODO
	    } else if (dl_dci->format ==
		       PROTOCOL__FLEX_DCI_FORMAT__FLDCIF_1D) {
		//TODO
	    }
	} else {
	    if (dl_dci->format == PROTOCOL__FLEX_DCI_FORMAT__FLDCIF_1) {
		FILL_DCI_FDD_1(DCI1_1_5MHz_FDD_t, DLSCH_dci, dl_dci);
		size_bytes = sizeof(DCI1_1_5MHz_FDD_t);
		size_bits = sizeof_DCI1_1_5MHz_FDD_t;
	    } else if (dl_dci->format ==
		       PROTOCOL__FLEX_DCI_FORMAT__FLDCIF_2A) {
		//TODO
	    } else if (dl_dci->format ==
		       PROTOCOL__FLEX_DCI_FORMAT__FLDCIF_1D) {
		//TODO
	    }
	}
	break;
    case 25:
	if (frame_parms[CC_id]->frame_type == TDD) {
	    if (dl_dci->format == PROTOCOL__FLEX_DCI_FORMAT__FLDCIF_1) {
		FILL_DCI_TDD_1(DCI1_5MHz_TDD_t, DLSCH_dci, dl_dci);
		size_bytes = sizeof(DCI1_5MHz_TDD_t);
		size_bits = sizeof_DCI1_5MHz_TDD_t;
	    } else if (dl_dci->format ==
		       PROTOCOL__FLEX_DCI_FORMAT__FLDCIF_2A) {
		//TODO
	    } else if (dl_dci->format ==
		       PROTOCOL__FLEX_DCI_FORMAT__FLDCIF_1D) {
		//TODO
	    }
	} else {
	    if (dl_dci->format == PROTOCOL__FLEX_DCI_FORMAT__FLDCIF_1) {
		FILL_DCI_FDD_1(DCI1_5MHz_FDD_t, DLSCH_dci, dl_dci);
		size_bytes = sizeof(DCI1_5MHz_FDD_t);
		size_bits = sizeof_DCI1_5MHz_FDD_t;
	    } else if (dl_dci->format ==
		       PROTOCOL__FLEX_DCI_FORMAT__FLDCIF_2A) {
		//TODO
	    } else if (dl_dci->format ==
		       PROTOCOL__FLEX_DCI_FORMAT__FLDCIF_1D) {
		//TODO
	    }
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	}
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	break;
    case 50:
	if (frame_parms[CC_id]->frame_type == TDD) {
	    if (dl_dci->format == PROTOCOL__FLEX_DCI_FORMAT__FLDCIF_1) {
		FILL_DCI_TDD_1(DCI1_10MHz_TDD_t, DLSCH_dci, dl_dci);
		size_bytes = sizeof(DCI1_10MHz_TDD_t);
		size_bits = sizeof_DCI1_10MHz_TDD_t;
	    } else if (dl_dci->format ==
		       PROTOCOL__FLEX_DCI_FORMAT__FLDCIF_2A) {
		//TODO
	    } else if (dl_dci->format ==
		       PROTOCOL__FLEX_DCI_FORMAT__FLDCIF_1D) {
		//TODO
	    }
	} else {
	    if (dl_dci->format == PROTOCOL__FLEX_DCI_FORMAT__FLDCIF_1) {
		FILL_DCI_FDD_1(DCI1_10MHz_FDD_t, DLSCH_dci, dl_dci);
		size_bytes = sizeof(DCI1_10MHz_FDD_t);
		size_bits = sizeof_DCI1_10MHz_FDD_t;
	    } else if (dl_dci->format ==
		       PROTOCOL__FLEX_DCI_FORMAT__FLDCIF_2A) {
		//TODO
	    } else if (dl_dci->format ==
		       PROTOCOL__FLEX_DCI_FORMAT__FLDCIF_1D) {
		//TODO
	    }
519
	}
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	break;
    case 100:
	if (frame_parms[CC_id]->frame_type == TDD) {
	    if (dl_dci->format == PROTOCOL__FLEX_DCI_FORMAT__FLDCIF_1) {
		FILL_DCI_TDD_1(DCI1_20MHz_TDD_t, DLSCH_dci, dl_dci);
		size_bytes = sizeof(DCI1_20MHz_TDD_t);
		size_bits = sizeof_DCI1_20MHz_TDD_t;
	    } else if (dl_dci->format ==
		       PROTOCOL__FLEX_DCI_FORMAT__FLDCIF_2A) {
		//TODO
	    } else if (dl_dci->format ==
		       PROTOCOL__FLEX_DCI_FORMAT__FLDCIF_1D) {
		//TODO
	    }
	} else {
	    if (dl_dci->format == PROTOCOL__FLEX_DCI_FORMAT__FLDCIF_1) {
		FILL_DCI_FDD_1(DCI1_20MHz_FDD_t, DLSCH_dci, dl_dci);
		size_bytes = sizeof(DCI1_20MHz_FDD_t);
		size_bits = sizeof_DCI1_20MHz_FDD_t;
	    } else if (dl_dci->format ==
		       PROTOCOL__FLEX_DCI_FORMAT__FLDCIF_2A) {
		//TODO
	    } else if (dl_dci->format ==
		       PROTOCOL__FLEX_DCI_FORMAT__FLDCIF_1D) {
		//TODO
	    }
546
	}
547
	break;
548
    }
549

550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581
    //Set format to the proper type
    switch (dl_dci->format) {
    case PROTOCOL__FLEX_DCI_FORMAT__FLDCIF_1:
	format = format1;
	break;
    case PROTOCOL__FLEX_DCI_FORMAT__FLDCIF_1A:
	format = format1A;
	break;
    case PROTOCOL__FLEX_DCI_FORMAT__FLDCIF_1B:
	format = format1B;
	break;
    case PROTOCOL__FLEX_DCI_FORMAT__FLDCIF_1C:
	format = format1C;
	break;
    case PROTOCOL__FLEX_DCI_FORMAT__FLDCIF_1D:
	format = format1E_2A_M10PRB;
	break;
    case PROTOCOL__FLEX_DCI_FORMAT__FLDCIF_2:
	format = format2;
	break;
    case PROTOCOL__FLEX_DCI_FORMAT__FLDCIF_2A:
	format = format2A;
	break;
    case PROTOCOL__FLEX_DCI_FORMAT__FLDCIF_2B:
	format = format2B;
	break;
    case PROTOCOL__FLEX_DCI_FORMAT__FLDCIF_3:
	format = 3;
	break;
    default:
	/*TODO: Need to deal with unsupported DCI type */
	return;
582
    }
583 584 585 586 587

    add_ue_spec_dci(DCI_pdu,
		    DLSCH_dci,
		    rnti,
		    size_bytes, dl_dci->aggr_level, size_bits, format, 0);
588
}