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openairinterface5g/openair2/LAYER2/MAC/eNB_scheduler_bch.c
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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 1.1 (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 eNB_scheduler_bch.c
* \brief procedures related to eNB for the BCH transport channel
* \author Navid Nikaein and Raymond Knopp
* \date 2010 - 2014
* \email: navid.nikaein@eurecom.fr
* \version 1.0
* @ingroup _mac
*/
#include "assertions.h"
#include "LAYER2/MAC/mac.h"
#include "LAYER2/MAC/mac_proto.h"
#include "LAYER2/MAC/mac_extern.h"
#include "common/utils/LOG/log.h"
#include "common/utils/LOG/vcd_signal_dumper.h"
#include "UTIL/OPT/opt.h"
#include "RRC/LTE/rrc_extern.h"
#include "RRC/L2_INTERFACE/openair_rrc_L2_interface.h"
//#include "LAYER2/MAC/pre_processor.c"
#include "pdcp.h"
#include "intertask_interface.h"
#define ENABLE_MAC_PAYLOAD_DEBUG
#define DEBUG_eNB_SCHEDULER 1
#include "common/ran_context.h"
extern RAN_CONTEXT_t RC;
// NEED TO ADD schedule_SI_BR for SIB1_BR and SIB23_BR
// CCE_allocation_infeasible to be done for EPDCCH/MPDCCH
#define size_Sj25 2
static const int Sj25[size_Sj25] = {0, 3};
#define size_Sj50 6
static const int Sj50[size_Sj50] = {0, 1, 2, 5, 6, 7};
#define size_Sj75 10
static const int Sj75[size_Sj75] = {0, 1, 2, 3, 4, 7, 8, 9, 10, 11};
#define size_Sj100 14
static const int Sj100[size_Sj100] = {0, 1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 13, 14, 15};
static const int SIB1_BR_TBS_table[6] = {208, 256, 328, 504, 712, 936};
//------------------------------------------------------------------------------
void
schedule_SIB1_MBMS(module_id_t module_idP,
frame_t frameP, sub_frame_t subframeP)
//------------------------------------------------------------------------------
{
#ifdef SCHEDULE_SIB1_MBMS
int8_t bcch_sdu_length;
int CC_id;
eNB_MAC_INST *eNB = RC.mac[module_idP];
COMMON_channels_t *cc;
uint8_t *vrb_map;
int first_rb = -1;
int N_RB_DL;
nfapi_dl_config_request_pdu_t *dl_config_pdu;
nfapi_tx_request_pdu_t *TX_req;
nfapi_dl_config_request_body_t *dl_req;
int m, i, N_S_NB;
const int *Sj;
int n_NB = 0;
int TBS;
int k = 0, rvidx;
uint16_t sfn_sf = frameP<<4|subframeP;
for (CC_id = 0; CC_id < MAX_NUM_CCs; CC_id++) {
cc = &eNB->common_channels[CC_id];
vrb_map = (void *) &cc->vrb_map;
N_RB_DL = to_prb(cc->mib->message.dl_Bandwidth);
dl_req = &eNB->DL_req[CC_id].dl_config_request_body;
int foffset = cc->physCellId & 1;
int sfoffset = (cc->tdd_Config == NULL) ? 0 : 1;
// Time-domain scheduling
if (cc->mib->message.schedulingInfoSIB1_BR_r13 == 0)
continue;
else
switch ((cc->mib->message.schedulingInfoSIB1_BR_r13 - 1) % 3) {
case 0: // repetition 4
k = (frameP >> 1) & 3;
if ((subframeP != (4 + sfoffset))
|| ((frameP & 1) != foffset))
continue;
break;
case 1: // repetition 8
k = frameP & 3;
AssertFatal(N_RB_DL > 15,
"SIB1-BR repetition 8 not allowed for N_RB_DL= %d\n",
N_RB_DL);
if ((foffset == 0) && (subframeP != (4 + sfoffset)))
continue;
else if ((foffset == 1)
&& (subframeP != ((9 + sfoffset) % 10)))
continue;
break;
case 2: // repetition 16
k = ((10 * frameP) + subframeP) & 3;
AssertFatal(N_RB_DL > 15,
"SIB1-BR repetition 16 not allowed for N_RB_DL= %d\n",
N_RB_DL);
if ((sfoffset == 1)
&& ((subframeP != 0) || (subframeP != 5)))
continue;
else if ((sfoffset == 0) && (foffset == 0)
&& (subframeP != 4) && (subframeP != 9))
continue;
else if ((sfoffset == 0) && (foffset == 1)
&& (subframeP != 0) && (subframeP != 9))
continue;
break;
}
// if we get here we have to schedule SIB1_BR in this frame/subframe
// keep counter of SIB1_BR repetitions in 8 frame period to choose narrowband on which to transmit
if ((frameP & 7) == 0)
cc->SIB1_BR_cnt = 0;
else
cc->SIB1_BR_cnt++;
// Frequency-domain scheduling
switch (N_RB_DL) {
case 6:
case 15:
default:
m = 1;
n_NB = 0;
N_S_NB = 0;
Sj = NULL;
break;
case 25:
m = 2;
N_S_NB = 2;
Sj = Sj25;
break;
case 50:
m = 2;
N_S_NB = 6;
Sj = Sj50;
break;
case 75:
m = 4;
N_S_NB = 10;
Sj = Sj75;
break;
case 100:
m = 4;
N_S_NB = 14;
Sj = Sj100;
break;
}
// Note: definition of k above and rvidx from 36.321 section 5.3.1
rvidx = (((3 * k) >> 1) + (k & 1)) & 3;
i = cc->SIB1_BR_cnt & (m - 1);
if(Sj)
n_NB = Sj[((cc->physCellId % N_S_NB) + (i * N_S_NB / m)) % N_S_NB];
bcch_sdu_length = mac_rrc_data_req(module_idP, CC_id, frameP, BCCH_SIB1_BR, 1, &cc->BCCH_BR_pdu[0].payload[0], 0); // not used in this case
AssertFatal(cc->mib->message.schedulingInfoSIB1_BR_r13 < 19,
"schedulingInfoSIB1_BR_r13 %d > 18\n",
(int) cc->mib->message.schedulingInfoSIB1_BR_r13);
AssertFatal(bcch_sdu_length > 0,
"RRC returned 0 bytes for SIB1-BR\n");
TBS =
SIB1_BR_TBS_table[(cc->mib->message.schedulingInfoSIB1_BR_r13 -
1) / 3] >> 3;
AssertFatal(bcch_sdu_length <= TBS,
"length returned by RRC %d is not compatible with the TBS %d from MIB\n",
bcch_sdu_length, TBS);
if ((frameP & 1023) < 200)
LOG_D(MAC,
"[eNB %d] Frame %d Subframe %d: SIB1_BR->DLSCH CC_id %d, Received %d bytes, scheduling on NB %d (i %d,m %d,N_S_NB %d) rvidx %d\n",
module_idP, frameP, subframeP, CC_id, bcch_sdu_length,
n_NB, i, m, N_S_NB, rvidx);
// allocate all 6 PRBs in narrowband for SIB1_BR
first_rb = narrowband_to_first_rb(cc, n_NB);
vrb_map[first_rb] = 1;
vrb_map[first_rb + 1] = 1;
vrb_map[first_rb + 2] = 1;
vrb_map[first_rb + 3] = 1;
vrb_map[first_rb + 4] = 1;
vrb_map[first_rb + 5] = 1;
dl_config_pdu = &dl_req->dl_config_pdu_list[dl_req->number_pdu];
memset((void *) dl_config_pdu, 0,
sizeof(nfapi_dl_config_request_pdu_t));
dl_config_pdu->pdu_type = NFAPI_DL_CONFIG_DLSCH_PDU_TYPE;
dl_config_pdu->pdu_size = (uint8_t) (2 + sizeof(nfapi_dl_config_dlsch_pdu));
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.tl.tag = NFAPI_DL_CONFIG_REQUEST_DLSCH_PDU_REL8_TAG;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.length = TBS;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.pdu_index = eNB->pdu_index[CC_id];
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.rnti = 0xFFFF;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.resource_allocation_type = 2; // format 1A/1B/1D
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.virtual_resource_block_assignment_flag = 0; // localized
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.resource_block_coding = getRIV(N_RB_DL, first_rb, 6);
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.modulation = 2; //QPSK
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.redundancy_version = rvidx;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.transport_blocks = 1; // first block
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.transport_block_to_codeword_swap_flag = 0;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.transmission_scheme = (cc->p_eNB == 1) ? 0 : 1;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.number_of_layers = 1;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.number_of_subbands = 1;
// dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.codebook_index = ;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.ue_category_capacity = 1;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.pa = 4; // 0 dB
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.delta_power_offset_index = 0;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.ngap = 0;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.nprb = get_subbandsize(cc->mib->message.dl_Bandwidth); // ignored
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.transmission_mode = (cc->p_eNB == 1) ? 1 : 2;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.num_bf_prb_per_subband = 1;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.num_bf_vector = 1;
// Rel10 fields
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel10.tl.tag = NFAPI_DL_CONFIG_REQUEST_DLSCH_PDU_REL10_TAG;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel10.pdsch_start = 3;
// Rel13 fields
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel13.tl.tag = NFAPI_DL_CONFIG_REQUEST_DLSCH_PDU_REL13_TAG;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel13.ue_type = 1; // CEModeA UE
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel13.pdsch_payload_type = 0; // SIB1-BR
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel13.initial_transmission_sf_io = 0xFFFF; // absolute SFx
// dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.bf_vector = ;
dl_req->number_pdu++;
dl_req->tl.tag = NFAPI_DL_CONFIG_REQUEST_BODY_TAG;
// Program TX Request
TX_req = &eNB->TX_req[CC_id].tx_request_body.tx_pdu_list[eNB->TX_req[CC_id].tx_request_body.number_of_pdus];
TX_req->pdu_length = bcch_sdu_length;
TX_req->pdu_index = eNB->pdu_index[CC_id]++;
TX_req->num_segments = 1;
TX_req->segments[0].segment_length = bcch_sdu_length;
TX_req->segments[0].segment_data = cc->BCCH_BR_pdu[0].payload;
eNB->TX_req[CC_id].sfn_sf = sfn_sf;
eNB->TX_req[CC_id].tx_request_body.tl.tag = NFAPI_TX_REQUEST_BODY_TAG;
eNB->TX_req[CC_id].tx_request_body.number_of_pdus++;
eNB->TX_req[CC_id].header.message_id = NFAPI_TX_REQUEST;
ws_trace_t tmp = {.direction = DIRECTION_DOWNLINK,
.pdu_buffer = cc->BCCH_BR_pdu[0].payload,
.pdu_buffer_size = bcch_sdu_length,
.ueid = 0xffff,
.rntiType = WS_SI_RNTI,
.rnti = 0xffff,
.sysFrame = eNB->frame,
.subframe = eNB->subframe};
trace_pdu(&tmp);
if (cc->tdd_Config != NULL) { //TDD
LOG_D(MAC,
"[eNB] Frame %d : Scheduling BCCH-BR 0->DLSCH (TDD) for CC_id %d SIB1-BR %d bytes\n",
frameP, CC_id, bcch_sdu_length);
} else {
LOG_D(MAC,
"[eNB] Frame %d : Scheduling BCCH-BR 0->DLSCH (FDD) for CC_id %d SIB1-BR %d bytes\n",
frameP, CC_id, bcch_sdu_length);
}
}
#endif
}
//------------------------------------------------------------------------------
void
schedule_SIB1_BR(module_id_t module_idP,
frame_t frameP, sub_frame_t subframeP)
//------------------------------------------------------------------------------
{
int8_t bcch_sdu_length;
int CC_id;
eNB_MAC_INST *eNB = RC.mac[module_idP];
COMMON_channels_t *cc;
uint8_t *vrb_map;
int first_rb = -1;
int N_RB_DL;
nfapi_dl_config_request_pdu_t *dl_config_pdu;
nfapi_tx_request_pdu_t *TX_req;
nfapi_dl_config_request_body_t *dl_req;
int m, i, N_S_NB;
const int *Sj;
int n_NB = 0;
int TBS;
int k = 0, rvidx;
uint16_t sfn_sf = frameP<<4|subframeP;
for (CC_id = 0; CC_id < MAX_NUM_CCs; CC_id++) {
cc = &eNB->common_channels[CC_id];
vrb_map = (void *) &cc->vrb_map;
N_RB_DL = to_prb(cc->mib->message.dl_Bandwidth);
dl_req = &eNB->DL_req[CC_id].dl_config_request_body;
int foffset = cc->physCellId & 1;
int sfoffset = (cc->tdd_Config == NULL) ? 0 : 1;
// Time-domain scheduling
if (cc->mib->message.schedulingInfoSIB1_BR_r13 == 0)
continue;
else
switch ((cc->mib->message.schedulingInfoSIB1_BR_r13 - 1) % 3) {
case 0: // repetition 4
k = (frameP >> 1) & 3;
if ((subframeP != (4 + sfoffset))
|| ((frameP & 1) != foffset))
continue;
break;
case 1: // repetition 8
k = frameP & 3;
AssertFatal(N_RB_DL > 15,
"SIB1-BR repetition 8 not allowed for N_RB_DL= %d\n",
N_RB_DL);
if ((foffset == 0) && (subframeP != (4 + sfoffset)))
continue;
else if ((foffset == 1)
&& (subframeP != ((9 + sfoffset) % 10)))
continue;
break;
case 2: // repetition 16
k = ((10 * frameP) + subframeP) & 3;
AssertFatal(N_RB_DL > 15,
"SIB1-BR repetition 16 not allowed for N_RB_DL= %d\n",
N_RB_DL);
if ((sfoffset == 1)
&& ((subframeP != 0) && (subframeP != 5)))
continue;
else if ((sfoffset == 0) && (foffset == 0)
&& (subframeP != 4) && (subframeP != 9))
continue;
else if ((sfoffset == 0) && (foffset == 1)
&& (subframeP != 0) && (subframeP != 9))
continue;
break;
}
// if we get here we have to schedule SIB1_BR in this frame/subframe
// keep counter of SIB1_BR repetitions in 8 frame period to choose narrowband on which to transmit
if ((frameP & 7) == 0)
cc->SIB1_BR_cnt = 0;
else
cc->SIB1_BR_cnt++;
// Frequency-domain scheduling
switch (N_RB_DL) {
case 6:
case 15:
default:
m = 1;
n_NB = 0;
N_S_NB = 0;
Sj = NULL;
break;
case 25:
m = 2;
N_S_NB = 2;
Sj = Sj25;
break;
case 50:
m = 2;
N_S_NB = 6;
Sj = Sj50;
break;
case 75:
m = 4;
N_S_NB = 10;
Sj = Sj75;
break;
case 100:
m = 4;
N_S_NB = 14;
Sj = Sj100;
break;
}
// Note: definition of k above and rvidx from 36.321 section 5.3.1
rvidx = (((3 * k) >> 1) + (k & 1)) & 3;
i = cc->SIB1_BR_cnt & (m - 1);
if(Sj)
n_NB = Sj[((cc->physCellId % N_S_NB) + (i * N_S_NB / m)) % N_S_NB];
bcch_sdu_length = mac_rrc_data_req(module_idP, CC_id, frameP, BCCH_SIB1_BR, 0xFFFF, 1, &cc->BCCH_BR_pdu[0].payload[0], 0); // not used in this case
AssertFatal(cc->mib->message.schedulingInfoSIB1_BR_r13 < 19,
"schedulingInfoSIB1_BR_r13 %d > 18\n",
(int) cc->mib->message.schedulingInfoSIB1_BR_r13);
AssertFatal(bcch_sdu_length > 0,
"RRC returned 0 bytes for SIB1-BR\n");
TBS =
SIB1_BR_TBS_table[(cc->mib->message.schedulingInfoSIB1_BR_r13 -
1) / 3] >> 3;
AssertFatal(bcch_sdu_length <= TBS,
"length returned by RRC %d is not compatible with the TBS %d from MIB\n",
bcch_sdu_length, TBS);
if ((frameP & 1023) < 200)
LOG_D(MAC,
"[eNB %d] Frame %d Subframe %d: SIB1_BR->DLSCH CC_id %d, Received %d bytes, scheduling on NB %d (i %d,m %d,N_S_NB %d) rvidx %d\n",
module_idP, frameP, subframeP, CC_id, bcch_sdu_length,
n_NB, i, m, N_S_NB, rvidx);
// allocate all 6 PRBs in narrowband for SIB1_BR
first_rb = narrowband_to_first_rb(cc, n_NB);
vrb_map[first_rb] = 1;
vrb_map[first_rb + 1] = 1;
vrb_map[first_rb + 2] = 1;
vrb_map[first_rb + 3] = 1;
vrb_map[first_rb + 4] = 1;
vrb_map[first_rb + 5] = 1;
dl_config_pdu = &dl_req->dl_config_pdu_list[dl_req->number_pdu];
memset((void *) dl_config_pdu, 0,
sizeof(nfapi_dl_config_request_pdu_t));
dl_config_pdu->pdu_type = NFAPI_DL_CONFIG_DLSCH_PDU_TYPE;
dl_config_pdu->pdu_size = (uint8_t) (2 + sizeof(nfapi_dl_config_dlsch_pdu));
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.tl.tag = NFAPI_DL_CONFIG_REQUEST_DLSCH_PDU_REL8_TAG;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.length = TBS;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.pdu_index = eNB->pdu_index[CC_id];
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.rnti = 0xFFFF;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.resource_allocation_type = 2; // format 1A/1B/1D
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.virtual_resource_block_assignment_flag = 0; // localized
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.resource_block_coding = getRIV(N_RB_DL, first_rb, 6);
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.modulation = 2; //QPSK
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.redundancy_version = rvidx;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.transport_blocks = 1; // first block
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.transport_block_to_codeword_swap_flag = 0;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.transmission_scheme = (cc->p_eNB == 1) ? 0 : 1;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.number_of_layers = 1;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.number_of_subbands = 1;
// dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.codebook_index = ;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.ue_category_capacity = 1;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.pa = 4; // 0 dB
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.delta_power_offset_index = 0;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.ngap = 0;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.nprb = get_subbandsize(cc->mib->message.dl_Bandwidth); // ignored
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.transmission_mode = (cc->p_eNB == 1) ? 1 : 2;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.num_bf_prb_per_subband = 1;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.num_bf_vector = 1;
// Rel10 fields
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel10.tl.tag = NFAPI_DL_CONFIG_REQUEST_DLSCH_PDU_REL10_TAG;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel10.pdsch_start = 3;
// Rel13 fields
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel13.tl.tag = NFAPI_DL_CONFIG_REQUEST_DLSCH_PDU_REL13_TAG;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel13.ue_type = 1; // CEModeA UE
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel13.pdsch_payload_type = 0; // SIB1-BR
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel13.initial_transmission_sf_io = 0xFFFF; // absolute SFx
// dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.bf_vector = ;
dl_req->number_pdu++;
dl_req->tl.tag = NFAPI_DL_CONFIG_REQUEST_BODY_TAG;
// Program TX Request
TX_req = &eNB->TX_req[CC_id].tx_request_body.tx_pdu_list[eNB->TX_req[CC_id].tx_request_body.number_of_pdus];
TX_req->pdu_length = bcch_sdu_length;
TX_req->pdu_index = eNB->pdu_index[CC_id]++;
TX_req->num_segments = 1;
TX_req->segments[0].segment_length = bcch_sdu_length;
TX_req->segments[0].segment_data = cc->BCCH_BR_pdu[0].payload;
eNB->TX_req[CC_id].sfn_sf = sfn_sf;
eNB->TX_req[CC_id].tx_request_body.tl.tag = NFAPI_TX_REQUEST_BODY_TAG;
eNB->TX_req[CC_id].tx_request_body.number_of_pdus++;
eNB->TX_req[CC_id].header.message_id = NFAPI_TX_REQUEST;
ws_trace_t tmp = {.direction = DIRECTION_DOWNLINK,
.pdu_buffer = cc->BCCH_BR_pdu[0].payload,
.pdu_buffer_size = bcch_sdu_length,
.ueid = 0xffff,
.rntiType = WS_SI_RNTI,
.rnti = 0xffff,
.sysFrame = eNB->frame,
.subframe = eNB->subframe};
trace_pdu(&tmp);
if (cc->tdd_Config != NULL) { //TDD
LOG_D(MAC,
"[eNB] Frame %d : Scheduling BCCH-BR 0->DLSCH (TDD) for CC_id %d SIB1-BR %d bytes\n",
frameP, CC_id, bcch_sdu_length);
} else {
LOG_D(MAC,
"[eNB] Frame %d : Scheduling BCCH-BR 0->DLSCH (FDD) for CC_id %d SIB1-BR %d bytes\n",
frameP, CC_id, bcch_sdu_length);
}
}
}
static const int si_WindowLength_BR_r13tab
[LTE_SystemInformationBlockType1_v1310_IEs__bandwidthReducedAccessRelatedInfo_r13__si_WindowLength_BR_r13_spare] =
{20, 40, 60, 80, 120, 160, 200};
static const int si_TBS_r13tab[LTE_SchedulingInfo_BR_r13__si_TBS_r13_b936 + 1] = {152, 208, 256, 328, 408, 504, 600, 712, 808, 936};
//------------------------------------------------------------------------------
void
schedule_SI_BR(module_id_t module_idP, frame_t frameP,
sub_frame_t subframeP)
//------------------------------------------------------------------------------
{
int8_t bcch_sdu_length;
int CC_id;
eNB_MAC_INST *eNB = RC.mac[module_idP];
COMMON_channels_t *cc;
uint8_t *vrb_map;
int first_rb = -1;
int N_RB_DL;
nfapi_dl_config_request_pdu_t *dl_config_pdu;
nfapi_tx_request_pdu_t *TX_req;
nfapi_dl_config_request_body_t *dl_req;
int i;
int rvidx;
int absSF = (frameP*10)+subframeP;
for (CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
cc = &eNB->common_channels[CC_id];
vrb_map = (void *)&cc->vrb_map;
N_RB_DL = to_prb(cc->mib->message.dl_Bandwidth);
dl_req = &eNB->DL_req[CC_id].dl_config_request_body;
// Time-domain scheduling
if (cc->mib->message.schedulingInfoSIB1_BR_r13==0) continue;
else {
AssertFatal(cc->sib1_v13ext->bandwidthReducedAccessRelatedInfo_r13!=NULL,
"sib_v13ext->bandwidthReducedAccessRelatedInfo_r13 is null\n");
LTE_SchedulingInfoList_BR_r13_t *schedulingInfoList_BR_r13 = cc->sib1_v13ext->bandwidthReducedAccessRelatedInfo_r13->schedulingInfoList_BR_r13;
AssertFatal(schedulingInfoList_BR_r13!=NULL,
"sib_v13ext->schedulingInfoList_BR_r13 is null\n");
LTE_SchedulingInfoList_t *schedulingInfoList = cc->schedulingInfoList;
AssertFatal(schedulingInfoList_BR_r13->list.count==schedulingInfoList->list.count,
"schedulingInfolist_BR.r13->list.count %d != schedulingInfoList.list.count %d\n",
schedulingInfoList_BR_r13->list.count,schedulingInfoList->list.count);
AssertFatal(cc->sib1_v13ext->bandwidthReducedAccessRelatedInfo_r13->si_WindowLength_BR_r13<=
LTE_SystemInformationBlockType1_v1310_IEs__bandwidthReducedAccessRelatedInfo_r13__si_WindowLength_BR_r13_ms200,
"si_WindowLength_BR_r13 %d > %d\n",
(int)cc->sib1_v13ext->bandwidthReducedAccessRelatedInfo_r13->si_WindowLength_BR_r13,
LTE_SystemInformationBlockType1_v1310_IEs__bandwidthReducedAccessRelatedInfo_r13__si_WindowLength_BR_r13_ms200);
// check that SI frequency-hopping is disabled
AssertFatal(cc->sib1_v13ext->bandwidthReducedAccessRelatedInfo_r13->si_HoppingConfigCommon_r13==
LTE_SystemInformationBlockType1_v1310_IEs__bandwidthReducedAccessRelatedInfo_r13__si_HoppingConfigCommon_r13_off,
"Deactivate SI_HoppingConfigCommon_r13 in configuration file, not supported for now\n");
long si_WindowLength_BR_r13 = si_WindowLength_BR_r13tab[cc->sib1_v13ext->bandwidthReducedAccessRelatedInfo_r13->si_WindowLength_BR_r13];
long si_RepetitionPattern_r13 = cc->sib1_v13ext->bandwidthReducedAccessRelatedInfo_r13->si_RepetitionPattern_r13;
AssertFatal(si_RepetitionPattern_r13<=LTE_SystemInformationBlockType1_v1310_IEs__bandwidthReducedAccessRelatedInfo_r13__si_RepetitionPattern_r13_every8thRF,
"si_RepetitionPattern_r13 %d > %d\n",
(int)si_RepetitionPattern_r13,
LTE_SystemInformationBlockType1_v1310_IEs__bandwidthReducedAccessRelatedInfo_r13__si_RepetitionPattern_r13_every8thRF);
// cycle through SIB list
for (i=0; i<schedulingInfoList_BR_r13->list.count; i++) {
long si_Periodicity = schedulingInfoList->list.array[i]->si_Periodicity;
long si_Narrowband_r13 = schedulingInfoList_BR_r13->list.array[i]->si_Narrowband_r13;
long si_TBS_r13 = si_TBS_r13tab[schedulingInfoList_BR_r13->list.array[i]->si_TBS_r13];
// check if the SI is to be scheduled now
int period_in_sf = 0;
if ((si_Periodicity >= 0) && (si_Periodicity < 25)) {
// 2^i * 80 subframes, note: si_Periodicity is 2^i * 80ms
period_in_sf = 80 << ((int) si_Periodicity);
} else if (si_Periodicity < 0) {
period_in_sf = 80;
} else if (si_Periodicity > 24) {
period_in_sf = 80 << 24;
}
int sf_mod_period = absSF % period_in_sf;
int k = sf_mod_period & 3;
// Note: definition of k and rvidx from 36.321 section 5.3.1
rvidx = (((3 * k) >> 1) + (k & 1)) & 3;
if ((sf_mod_period < si_WindowLength_BR_r13)
&& ((frameP & (((1 << si_RepetitionPattern_r13) - 1))) == 0)) { // this SIB is to be scheduled
bcch_sdu_length = mac_rrc_data_req(module_idP, CC_id, frameP, BCCH_SI_BR + i, 0xFFFF, 1, &cc->BCCH_BR_pdu[i + 1].payload[0], 0); // not used in this case
AssertFatal(bcch_sdu_length > 0,
"RRC returned 0 bytes for SI-BR %d\n", i);
if (bcch_sdu_length > 0) {
AssertFatal(bcch_sdu_length <= (si_TBS_r13 >> 3),
"RRC provided bcch with length %d > %d (si_TBS_r13 %d)\n",
bcch_sdu_length,
(int) (si_TBS_r13 >> 3),
(int) schedulingInfoList_BR_r13->list.array[i]->si_TBS_r13);
// allocate all 6 PRBs in narrowband for SIB1_BR
// check that SIB1 didn't take this narrowband
if (vrb_map[first_rb] > 0) continue;
first_rb = narrowband_to_first_rb(cc,si_Narrowband_r13 - 1);
vrb_map[first_rb] = 1;
vrb_map[first_rb + 1] = 1;
vrb_map[first_rb + 2] = 1;
vrb_map[first_rb + 4] = 1;
vrb_map[first_rb + 5] = 1;
if ((frameP&1023) < 200)
LOG_D(MAC,"[eNB %d] Frame %d Subframe %d: SI_BR->DLSCH CC_id %d, Narrowband %d rvidx %d (sf_mod_period %d : si_WindowLength_BR_r13 %d : si_RepetitionPattern_r13 %d) bcch_sdu_length %d\n",
module_idP,frameP,subframeP,CC_id,(int)si_Narrowband_r13-1,rvidx,
sf_mod_period,(int)si_WindowLength_BR_r13,(int)si_RepetitionPattern_r13,
bcch_sdu_length);
//// Rel10 fields (for PDSCH starting symbol)
//dl_config_pdu->dlsch_pdu.dlsch_pdu_rel10.pdsch_start = cc[CC_id].sib1_v13ext->bandwidthReducedAccessRelatedInfo_r13->startSymbolBR_r13;
//// Rel13 fields
// dl_config_pdu->dlsch_pdu.dlsch_pdu_rel13.tl.tag = NFAPI_DL_CONFIG_REQUEST_DLSCH_PDU_REL13_TAG;
//dl_config_pdu->dlsch_pdu.dlsch_pdu_rel13.ue_type = 1; // CEModeA UE
//dl_config_pdu->dlsch_pdu.dlsch_pdu_rel13.pdsch_payload_type = 1; // SI-BR
//dl_config_pdu->dlsch_pdu.dlsch_pdu_rel13.initial_transmission_sf_io = absSF - sf_mod_period;
//// dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.bf_vector = ;
//dl_req->number_pdu++;
// dl_req->tl.tag = NFAPI_DL_CONFIG_REQUEST_BODY_TAG;
dl_config_pdu = &dl_req->dl_config_pdu_list[dl_req->number_pdu];
memset((void *) dl_config_pdu, 0, sizeof(nfapi_dl_config_request_pdu_t));
dl_config_pdu->pdu_type = NFAPI_DL_CONFIG_DLSCH_PDU_TYPE;
dl_config_pdu->pdu_size = (uint8_t)(2+sizeof(nfapi_dl_config_dlsch_pdu));
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.length = si_TBS_r13>>3;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.pdu_index = eNB->pdu_index[CC_id];
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.rnti = 0xFFFF;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.resource_allocation_type = 2; // format 1A/1B/1D
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.virtual_resource_block_assignment_flag = 0; // localized
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.resource_block_coding = getRIV(N_RB_DL,first_rb,6);
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.modulation = 2; //QPSK
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.redundancy_version = rvidx;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.transport_blocks = 1;// first block
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.transport_block_to_codeword_swap_flag = 0;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.transmission_scheme = (cc->p_eNB==1 ) ? 0 : 1;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.number_of_layers = 1;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.number_of_subbands = 1;
// dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.codebook_index = ;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.ue_category_capacity = 1;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.pa = 4; // 0 dB
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.delta_power_offset_index = 0;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.ngap = 0;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.nprb = get_subbandsize(cc->mib->message.dl_Bandwidth); // ignored
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.transmission_mode = (cc->p_eNB==1 ) ? 1 : 2;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.num_bf_prb_per_subband = 1;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.num_bf_vector = 1;
// Rel10 fields (for PDSCH starting symbol)
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel10.pdsch_start = cc[CC_id].sib1_v13ext->bandwidthReducedAccessRelatedInfo_r13->startSymbolBR_r13;
// Rel13 fields
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel13.ue_type = 1; // CEModeA UE
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel13.pdsch_payload_type = 1; // SI-BR
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel13.initial_transmission_sf_io = absSF - sf_mod_period;
// dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.bf_vector = ;
dl_req->number_pdu++;
// Program TX Request
TX_req = &eNB->TX_req[CC_id].tx_request_body.tx_pdu_list[eNB->TX_req[CC_id].tx_request_body.number_of_pdus];
TX_req->pdu_length = bcch_sdu_length;
TX_req->pdu_index = eNB->pdu_index[CC_id]++;
TX_req->num_segments = 1;
TX_req->segments[0].segment_length = bcch_sdu_length;
TX_req->segments[0].segment_data = cc->BCCH_BR_pdu[i+1].payload;
eNB->TX_req[CC_id].tx_request_body.number_of_pdus++;
ws_trace_t tmp = {.direction = DIRECTION_DOWNLINK,
.pdu_buffer = cc->BCCH_BR_pdu[i + 1].payload,
.pdu_buffer_size = bcch_sdu_length,
.ueid = 0xffff,
.rntiType = WS_SI_RNTI,
.rnti = 0xffff,
.sysFrame = eNB->frame,
.subframe = eNB->subframe};
trace_pdu(&tmp);
if (cc->tdd_Config != NULL) { //TDD
LOG_D(MAC, "[eNB] Frame %d : Scheduling BCCH-BR %d->DLSCH (TDD) for CC_id %d SI-BR %d bytes\n",
frameP, i, CC_id, bcch_sdu_length);
} else {
LOG_D(MAC, "[eNB] Frame %d : Scheduling BCCH-BR %d->DLSCH (FDD) for CC_id %d SI-BR %d bytes\n",
frameP, i, CC_id, bcch_sdu_length);
}
}
} // scheduling in current frame/subframe
} //for SI List
} // eMTC is activated
} // CC_id
return;
}
//------------------------------------------------------------------------------
void
schedule_SI_MBMS(module_id_t module_idP, frame_t frameP,
sub_frame_t subframeP)
//------------------------------------------------------------------------------
{
int8_t bcch_sdu_length;
int mcs = -1;
int CC_id;
eNB_MAC_INST *eNB = RC.mac[module_idP];
COMMON_channels_t *cc;
uint8_t *vrb_map;
int first_rb = -1;
int N_RB_DL;
nfapi_dl_config_request_t *dl_config_request;
nfapi_dl_config_request_pdu_t *dl_config_pdu;
nfapi_tx_request_pdu_t *TX_req;
nfapi_dl_config_request_body_t *dl_req;
uint16_t sfn_sf = frameP << 4 | subframeP;
start_meas(&eNB->schedule_si_mbms);
// Only schedule LTE System Information in subframe 0
if (subframeP == 0) {
for (CC_id = 0; CC_id < MAX_NUM_CCs; CC_id++) {
cc = &eNB->common_channels[CC_id];
//printf("*cc->sib1_MBMS->si_WindowLength_r14 %d \n", *cc->sib1_MBMS->si_WindowLength_r14);
vrb_map = (void *) &cc->vrb_map;
N_RB_DL = to_prb(cc->mib->message.dl_Bandwidth);
dl_config_request = &eNB->DL_req[CC_id];
dl_req = &eNB->DL_req[CC_id].dl_config_request_body;
bcch_sdu_length = mac_rrc_data_req(module_idP, CC_id, frameP, BCCH_SI_MBMS,0xFFFF, 1, &cc->BCCH_MBMS_pdu.payload[0], 0); // not used in this case
if (bcch_sdu_length > 0) {
LOG_D(MAC, "[eNB %d] Frame %d : BCCH-MBMS->DLSCH CC_id %d, Received %d bytes \n", module_idP, frameP, CC_id, bcch_sdu_length);
// Allocate 4 PRBs in a random location
/*
while (1) {
first_rb = (unsigned char)(taus()%(PHY_vars_eNB_g[module_idP][CC_id]->frame_parms.N_RB_DL-4));
if ((vrb_map[first_rb] != 1) &&
(vrb_map[first_rb+1] != 1) &&
(vrb_map[first_rb+2] != 1) &&
(vrb_map[first_rb+3] != 1))
break;
}
*/
switch (N_RB_DL) {
case 6:
first_rb = 0;
break;
case 15:
first_rb = 6;
break;
case 25:
first_rb = 11;
break;
case 50:
first_rb = 23;
break;
case 100:
first_rb = 48;
break;
}
vrb_map[first_rb] = 1;
vrb_map[first_rb + 1] = 1;
vrb_map[first_rb + 2] = 1;
vrb_map[first_rb + 3] = 1;
// Get MCS for length of SI, 3 PRBs
if (bcch_sdu_length <= 7) {
mcs = 0;
} else if (bcch_sdu_length <= 11) {
mcs = 1;
} else if (bcch_sdu_length <= 18) {
mcs = 2;
} else if (bcch_sdu_length <= 22) {
mcs = 3;
} else if (bcch_sdu_length <= 26) {
mcs = 4;
} else if (bcch_sdu_length <= 28) {
mcs = 5;
} else if (bcch_sdu_length <= 32) {
mcs = 6;
} else if (bcch_sdu_length <= 41) {
mcs = 7;
} else if (bcch_sdu_length <= 49) {
mcs = 8;
}
dl_config_pdu = &dl_req->dl_config_pdu_list[dl_req->number_pdu];
memset((void *) dl_config_pdu, 0,
sizeof(nfapi_dl_config_request_pdu_t));
dl_config_pdu->pdu_type = NFAPI_DL_CONFIG_DCI_DL_PDU_TYPE;
dl_config_pdu->pdu_size = (uint8_t) (2 + sizeof(nfapi_dl_config_dci_dl_pdu));
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.tl.tag = NFAPI_DL_CONFIG_REQUEST_DCI_DL_PDU_REL8_TAG;
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.dci_format = NFAPI_DL_DCI_FORMAT_1A;
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.aggregation_level = 4;
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.rnti = 0xFFFF;
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.rnti_type = 2; // S-RNTI : see Table 4-10 from SCF082 - nFAPI specifications
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.transmission_power = 6000; // equal to RS power
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.harq_process = 0;
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.tpc = 1; // no TPC
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.new_data_indicator_1 = 0;
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.mcs_1 = mcs;
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.redundancy_version_1 = 0;
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.resource_block_coding = getRIV(N_RB_DL, first_rb, 4);
dl_config_request->sfn_sf = sfn_sf;
if (!CCE_allocation_infeasible(module_idP, CC_id, 0, subframeP,dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.aggregation_level, SI_RNTI)) {
LOG_D(MAC, "Frame %d: Subframe %d : Adding common DCI for S_RNTI MBMS\n", frameP, subframeP);
dl_req->number_dci++;
dl_req->number_pdu++;
dl_config_pdu = &dl_req->dl_config_pdu_list[dl_req->number_pdu];
memset((void *) dl_config_pdu, 0,
sizeof(nfapi_dl_config_request_pdu_t));
dl_config_pdu->pdu_type = NFAPI_DL_CONFIG_DLSCH_PDU_TYPE;
dl_config_pdu->pdu_size = (uint8_t) (2 + sizeof(nfapi_dl_config_dlsch_pdu));
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.pdu_index = eNB->pdu_index[CC_id];
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.tl.tag = NFAPI_DL_CONFIG_REQUEST_DLSCH_PDU_REL8_TAG;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.length = bcch_sdu_length;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.rnti = 0xFFFF;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.resource_allocation_type = 2; // format 1A/1B/1D
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.virtual_resource_block_assignment_flag = 0; // localized
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.resource_block_coding = getRIV(N_RB_DL, first_rb, 4);
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.modulation = 2; //QPSK
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.redundancy_version = 0;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.transport_blocks = 1; // first block
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.transport_block_to_codeword_swap_flag = 0;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.transmission_scheme = (cc->p_eNB == 1) ? 0 : 1;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.number_of_layers = 1;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.number_of_subbands = 1;
// dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.codebook_index = ;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.ue_category_capacity = 1;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.pa = 4; // 0 dB
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.delta_power_offset_index = 0;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.ngap = 0;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.nprb = get_subbandsize(cc->mib->message.dl_Bandwidth); // ignored
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.transmission_mode = (cc->p_eNB == 1) ? 1 : 2;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.num_bf_prb_per_subband = 1;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.num_bf_vector = 1;
// dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.bf_vector = ;
dl_req->number_pdu++;
// Rel10 fields
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel10.tl.tag = NFAPI_DL_CONFIG_REQUEST_DLSCH_PDU_REL10_TAG;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel10.pdsch_start = 3;
// Rel13 fields
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel13.tl.tag = NFAPI_DL_CONFIG_REQUEST_DLSCH_PDU_REL13_TAG;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel13.ue_type = 0; // regular UE
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel13.pdsch_payload_type = 2; // not BR
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel13.initial_transmission_sf_io = 0xFFFF; // absolute SF
dl_config_request->header.message_id = NFAPI_DL_CONFIG_REQUEST;
dl_config_request->sfn_sf = sfn_sf;
// Program TX Request
TX_req = &eNB->TX_req[CC_id].tx_request_body.tx_pdu_list[eNB->TX_req[CC_id].tx_request_body.number_of_pdus];
TX_req->pdu_length = bcch_sdu_length;
TX_req->pdu_index = eNB->pdu_index[CC_id]++;
TX_req->num_segments = 1;
TX_req->segments[0].segment_length = bcch_sdu_length;
TX_req->segments[0].segment_data = cc->BCCH_MBMS_pdu.payload;
eNB->TX_req[CC_id].tx_request_body.number_of_pdus++;
eNB->TX_req[CC_id].sfn_sf = sfn_sf;
eNB->TX_req[CC_id].tx_request_body.tl.tag = NFAPI_TX_REQUEST_BODY_TAG;
eNB->TX_req[CC_id].header.message_id = NFAPI_TX_REQUEST;
} else {
LOG_E(MAC,
"[eNB %d] CCid %d Frame %d, subframe %d : Cannot add DCI 1A for SI MBMS\n",
module_idP, CC_id, frameP, subframeP);
}
T(T_ENB_MAC_UE_DL_PDU_WITH_DATA, T_INT(module_idP), T_INT(CC_id), T_INT(0xffff),
T_INT(frameP), T_INT(subframeP), T_INT(0), T_BUFFER(cc->BCCH_MBMS_pdu.payload, bcch_sdu_length));
ws_trace_t tmp = {.direction = DIRECTION_DOWNLINK,
.pdu_buffer = cc->BCCH_MBMS_pdu.payload,
.pdu_buffer_size = bcch_sdu_length,
.ueid = 0xffff,
.rntiType = WS_SI_RNTI,
.rnti = 0xffff,
.sysFrame = eNB->frame,
.subframe = eNB->subframe};
trace_pdu(&tmp);
if (0/*cc->tdd_Config != NULL*/) { //TDD not for FeMBMS
LOG_D(MAC,
"[eNB] Frame %d : Scheduling BCCH->DLSCH (TDD) for CC_id %d SI %d bytes (mcs %d, rb 3)\n",
frameP, CC_id, bcch_sdu_length, mcs);
} else {
LOG_D(MAC, "[eNB] Frame %d : Scheduling BCCH-MBMS->DLSCH (FDD) for CC_id %d SI %d bytes (mcs %d, rb 3)\n", frameP, CC_id, bcch_sdu_length, mcs);
}
eNB->eNB_stats[CC_id].total_num_bcch_pdu += 1;
eNB->eNB_stats[CC_id].bcch_buffer = bcch_sdu_length;
eNB->eNB_stats[CC_id].total_bcch_buffer += bcch_sdu_length;
eNB->eNB_stats[CC_id].bcch_mcs = mcs;
//printf("SI %d.%d\n", frameP, subframeP);/////////////////////////////////////////******************************
} else {
//LOG_D(MAC,"[eNB %d] Frame %d : BCCH not active \n",Mod_id,frame);
}
}
}
//schedule_SIB1_BR(module_idP, frameP, subframeP);
//schedule_SI_BR(module_idP, frameP, subframeP);
stop_meas(&eNB->schedule_si_mbms);
}
void
schedule_fembms_mib(module_id_t module_idP, frame_t frameP, sub_frame_t subframeP) {
eNB_MAC_INST *eNB = RC.mac[module_idP];
COMMON_channels_t *cc;
nfapi_dl_config_request_pdu_t *dl_config_pdu;
nfapi_tx_request_pdu_t *TX_req;
int mib_sdu_length;
int CC_id;
nfapi_dl_config_request_t *dl_config_request;
nfapi_dl_config_request_body_t *dl_req;
uint16_t sfn_sf = frameP << 4 | subframeP;
AssertFatal(subframeP == 0, "Subframe must be 0\n");
AssertFatal((frameP & 15) == 0, "Frame must be a multiple of 16\n");
for (CC_id = 0; CC_id < MAX_NUM_CCs; CC_id++) {
dl_config_request = &eNB->DL_req[CC_id];
dl_req = &dl_config_request->dl_config_request_body;
cc = &eNB->common_channels[CC_id];
mib_sdu_length = mac_rrc_data_req(module_idP, CC_id, frameP, MIBCH_MBMS, 0xFFFF, 1, &cc->MIB_pdu.payload[0], 0); // not used in this case
LOG_D(MAC, "Frame %d, subframe %d: BCH PDU length %d\n", frameP, subframeP, mib_sdu_length);
if (mib_sdu_length > 0) {
LOG_D(MAC, "Frame %d, subframe %d: Adding BCH PDU in position %d (length %d)\n", frameP, subframeP, dl_req->number_pdu, mib_sdu_length);
if ((frameP & 1023) < 40)
LOG_D(MAC,
"[eNB %d] Frame %d : MIB->BCH CC_id %d, Received %d bytes (cc->mib->message.schedulingInfoSIB1_BR_r13 %d)\n",
module_idP, frameP, CC_id, mib_sdu_length,
(int) cc->mib->message.schedulingInfoSIB1_BR_r13);
dl_config_pdu = &dl_req->dl_config_pdu_list[dl_req->number_pdu];
memset((void *) dl_config_pdu, 0,
sizeof(nfapi_dl_config_request_pdu_t));
dl_config_pdu->pdu_type = NFAPI_DL_CONFIG_BCH_PDU_TYPE, dl_config_pdu->pdu_size =
2 + sizeof(nfapi_dl_config_bch_pdu);
dl_config_pdu->bch_pdu.bch_pdu_rel8.tl.tag = NFAPI_DL_CONFIG_REQUEST_BCH_PDU_REL8_TAG;
dl_config_pdu->bch_pdu.bch_pdu_rel8.length = mib_sdu_length;
dl_config_pdu->bch_pdu.bch_pdu_rel8.pdu_index = eNB->pdu_index[CC_id];
dl_config_pdu->bch_pdu.bch_pdu_rel8.transmission_power = 6000;
dl_req->tl.tag = NFAPI_DL_CONFIG_REQUEST_BODY_TAG;
dl_req->number_pdu++;
dl_config_request->header.message_id = NFAPI_DL_CONFIG_REQUEST;
dl_config_request->sfn_sf = sfn_sf;
LOG_D(MAC, "eNB->DL_req[0].number_pdu %d (%p)\n", dl_req->number_pdu, &dl_req->number_pdu);
// DL request
TX_req = &eNB->TX_req[CC_id].tx_request_body.tx_pdu_list[eNB->TX_req[CC_id].tx_request_body.number_of_pdus];
TX_req->pdu_length = 3;
TX_req->pdu_index = eNB->pdu_index[CC_id]++;
TX_req->num_segments = 1;
TX_req->segments[0].segment_length = 3;
TX_req->segments[0].segment_data = cc[CC_id].MIB_pdu.payload;
eNB->TX_req[CC_id].tx_request_body.number_of_pdus++;
eNB->TX_req[CC_id].sfn_sf = sfn_sf;
eNB->TX_req[CC_id].tx_request_body.tl.tag = NFAPI_TX_REQUEST_BODY_TAG;
eNB->TX_req[CC_id].header.message_id = NFAPI_TX_REQUEST;
}
}
}
void
schedule_mib(module_id_t module_idP, frame_t frameP, sub_frame_t subframeP) {
eNB_MAC_INST *eNB = RC.mac[module_idP];
COMMON_channels_t *cc;
nfapi_dl_config_request_pdu_t *dl_config_pdu;
nfapi_tx_request_pdu_t *TX_req;
int mib_sdu_length;
int CC_id;
nfapi_dl_config_request_t *dl_config_request;
nfapi_dl_config_request_body_t *dl_req;
uint16_t sfn_sf = frameP << 4 | subframeP;
AssertFatal(subframeP == 0, "Subframe must be 0\n");
AssertFatal((frameP & 3) == 0, "Frame must be a multiple of 4\n");
for (CC_id = 0; CC_id < MAX_NUM_CCs; CC_id++) {
dl_config_request = &eNB->DL_req[CC_id];
dl_req = &dl_config_request->dl_config_request_body;
cc = &eNB->common_channels[CC_id];
mib_sdu_length = mac_rrc_data_req(module_idP, CC_id, frameP, MIBCH, 0xFFFF, 1, &cc->MIB_pdu.payload[0], 0); // not used in this case
LOG_D(MAC, "Frame %d, subframe %d: BCH PDU length %d\n", frameP, subframeP, mib_sdu_length);
if (mib_sdu_length > 0) {
LOG_D(MAC, "Frame %d, subframe %d: Adding BCH PDU in position %d (length %d)\n", frameP, subframeP, dl_req->number_pdu, mib_sdu_length);
if ((frameP & 1023) < 40)
LOG_D(MAC,
"[eNB %d] Frame %d : MIB->BCH CC_id %d, Received %d bytes (cc->mib->message.schedulingInfoSIB1_BR_r13 %d)\n",
module_idP, frameP, CC_id, mib_sdu_length,
(int) cc->mib->message.schedulingInfoSIB1_BR_r13);
dl_config_pdu = &dl_req->dl_config_pdu_list[dl_req->number_pdu];
memset((void *) dl_config_pdu, 0,
sizeof(nfapi_dl_config_request_pdu_t));
dl_config_pdu->pdu_type = NFAPI_DL_CONFIG_BCH_PDU_TYPE, dl_config_pdu->pdu_size =
2 + sizeof(nfapi_dl_config_bch_pdu);
dl_config_pdu->bch_pdu.bch_pdu_rel8.tl.tag = NFAPI_DL_CONFIG_REQUEST_BCH_PDU_REL8_TAG;
dl_config_pdu->bch_pdu.bch_pdu_rel8.length = mib_sdu_length;
dl_config_pdu->bch_pdu.bch_pdu_rel8.pdu_index = eNB->pdu_index[CC_id];
dl_config_pdu->bch_pdu.bch_pdu_rel8.transmission_power = 6000;
dl_req->tl.tag = NFAPI_DL_CONFIG_REQUEST_BODY_TAG;
dl_req->number_pdu++;
dl_config_request->header.message_id = NFAPI_DL_CONFIG_REQUEST;
dl_config_request->sfn_sf = sfn_sf;
LOG_D(MAC, "eNB->DL_req[0].number_pdu %d (%p)\n", dl_req->number_pdu, &dl_req->number_pdu);
// DL request
TX_req = &eNB->TX_req[CC_id].tx_request_body.tx_pdu_list[eNB->TX_req[CC_id].tx_request_body.number_of_pdus];
TX_req->pdu_length = 3;
TX_req->pdu_index = eNB->pdu_index[CC_id]++;
TX_req->num_segments = 1;
TX_req->segments[0].segment_length = 3;
TX_req->segments[0].segment_data = cc[CC_id].MIB_pdu.payload;
eNB->TX_req[CC_id].tx_request_body.number_of_pdus++;
eNB->TX_req[CC_id].sfn_sf = sfn_sf;
eNB->TX_req[CC_id].tx_request_body.tl.tag = NFAPI_TX_REQUEST_BODY_TAG;
eNB->TX_req[CC_id].header.message_id = NFAPI_TX_REQUEST;
}
}
}
//------------------------------------------------------------------------------
void
schedule_SI(module_id_t module_idP, frame_t frameP, sub_frame_t subframeP)
//------------------------------------------------------------------------------
{
int8_t bcch_sdu_length;
int mcs = -1;
int CC_id;
eNB_MAC_INST *eNB = RC.mac[module_idP];
COMMON_channels_t *cc;
uint8_t *vrb_map;
int first_rb = -1;
int N_RB_DL;
nfapi_dl_config_request_t *dl_config_request;
nfapi_dl_config_request_pdu_t *dl_config_pdu;
nfapi_tx_request_pdu_t *TX_req;
nfapi_dl_config_request_body_t *dl_req;
uint16_t sfn_sf = frameP << 4 | subframeP;
start_meas(&eNB->schedule_si);
// Only schedule LTE System Information in subframe 5
if (subframeP == 5) {
for (CC_id = 0; CC_id < MAX_NUM_CCs; CC_id++) {
cc = &eNB->common_channels[CC_id];
vrb_map = (void *) &cc->vrb_map;
N_RB_DL = to_prb(cc->mib->message.dl_Bandwidth);
dl_config_request = &eNB->DL_req[CC_id];
dl_req = &eNB->DL_req[CC_id].dl_config_request_body;
bcch_sdu_length = mac_rrc_data_req(module_idP, CC_id, frameP, BCCH, 0xFFFF,1, &cc->BCCH_pdu.payload[0], 0); // not used in this case
if (bcch_sdu_length > 0) {
LOG_D(MAC, "[eNB %d] Frame %d : BCCH->DLSCH CC_id %d, Received %d bytes \n", module_idP, frameP, CC_id, bcch_sdu_length);
// Allocate 4 PRBs in a random location
/*
while (1) {
first_rb = (unsigned char)(taus()%(PHY_vars_eNB_g[module_idP][CC_id]->frame_parms.N_RB_DL-4));
if ((vrb_map[first_rb] != 1) &&
(vrb_map[first_rb+1] != 1) &&
(vrb_map[first_rb+2] != 1) &&
(vrb_map[first_rb+3] != 1))
break;
}
*/
switch (N_RB_DL) {
case 6:
first_rb = 0;
break;
case 15:
first_rb = 6;
break;
case 25:
first_rb = 11;
break;
case 50:
first_rb = 23;
break;
case 100:
first_rb = 48;
break;
}
vrb_map[first_rb] = 1;
vrb_map[first_rb + 1] = 1;
vrb_map[first_rb + 2] = 1;
vrb_map[first_rb + 3] = 1;
// Get MCS for length of SI, 3 PRBs
if (bcch_sdu_length <= 7) {
mcs = 0;
} else if (bcch_sdu_length <= 11) {
mcs = 1;
} else if (bcch_sdu_length <= 18) {
mcs = 2;
} else if (bcch_sdu_length <= 22) {
mcs = 3;
} else if (bcch_sdu_length <= 26) {
mcs = 4;
} else if (bcch_sdu_length <= 28) {
mcs = 5;
} else if (bcch_sdu_length <= 32) {
mcs = 6;
} else if (bcch_sdu_length <= 41) {
mcs = 7;
} else if (bcch_sdu_length <= 49) {
mcs = 8;
} else if (bcch_sdu_length <= 59) {
mcs = 9;
} else AssertFatal(1==0,"Cannot Assign mcs for bcch_sdu_length %d (max mcs 9)\n",bcch_sdu_length);
dl_config_pdu = &dl_req->dl_config_pdu_list[dl_req->number_pdu];
memset((void *) dl_config_pdu, 0,
sizeof(nfapi_dl_config_request_pdu_t));
dl_config_pdu->pdu_type = NFAPI_DL_CONFIG_DCI_DL_PDU_TYPE;
dl_config_pdu->pdu_size = (uint8_t) (2 + sizeof(nfapi_dl_config_dci_dl_pdu));
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.tl.tag = NFAPI_DL_CONFIG_REQUEST_DCI_DL_PDU_REL8_TAG;
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.dci_format = NFAPI_DL_DCI_FORMAT_1A;
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.aggregation_level = 4;
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.rnti = 0xFFFF;
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.rnti_type = 2; // S-RNTI : see Table 4-10 from SCF082 - nFAPI specifications
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.transmission_power = 6000; // equal to RS power
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.harq_process = 0;
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.tpc = 1; // no TPC
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.new_data_indicator_1 = 0;
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.mcs_1 = mcs;
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.redundancy_version_1 = 0;
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.resource_block_coding = getRIV(N_RB_DL, first_rb, 4);
dl_config_request->sfn_sf = sfn_sf;
if (!CCE_allocation_infeasible(module_idP, CC_id, 0, subframeP,dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.aggregation_level, SI_RNTI)) {
LOG_D(MAC, "Frame %d: Subframe %d : Adding common DCI for S_RNTI\n", frameP, subframeP);
dl_req->number_dci++;
dl_req->number_pdu++;
dl_req->tl.tag = NFAPI_DL_CONFIG_REQUEST_BODY_TAG;
dl_config_pdu = &dl_req->dl_config_pdu_list[dl_req->number_pdu];
memset((void *) dl_config_pdu, 0,
sizeof(nfapi_dl_config_request_pdu_t));
dl_config_pdu->pdu_type = NFAPI_DL_CONFIG_DLSCH_PDU_TYPE;
dl_config_pdu->pdu_size = (uint8_t) (2 + sizeof(nfapi_dl_config_dlsch_pdu));
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.pdu_index = eNB->pdu_index[CC_id];
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.tl.tag = NFAPI_DL_CONFIG_REQUEST_DLSCH_PDU_REL8_TAG;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.length = bcch_sdu_length;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.rnti = 0xFFFF;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.resource_allocation_type = 2; // format 1A/1B/1D
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.virtual_resource_block_assignment_flag = 0; // localized
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.resource_block_coding = getRIV(N_RB_DL, first_rb, 4);
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.modulation = 2; //QPSK
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.redundancy_version = 0;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.transport_blocks = 1; // first block
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.transport_block_to_codeword_swap_flag = 0;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.transmission_scheme = (cc->p_eNB == 1) ? 0 : 1;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.number_of_layers = 1;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.number_of_subbands = 1;
// dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.codebook_index = ;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.ue_category_capacity = 1;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.pa = 4; // 0 dB
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.delta_power_offset_index = 0;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.ngap = 0;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.nprb = get_subbandsize(cc->mib->message.dl_Bandwidth); // ignored
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.transmission_mode = (cc->p_eNB == 1) ? 1 : 2;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.num_bf_prb_per_subband = 1;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.num_bf_vector = 1;
// dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.bf_vector = ;
dl_req->number_pdu++;
dl_req->tl.tag = NFAPI_DL_CONFIG_REQUEST_BODY_TAG;
// Rel10 fields
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel10.tl.tag = NFAPI_DL_CONFIG_REQUEST_DLSCH_PDU_REL10_TAG;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel10.pdsch_start = 3;
// Rel13 fields
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel13.tl.tag = NFAPI_DL_CONFIG_REQUEST_DLSCH_PDU_REL13_TAG;
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel13.ue_type = 0; // regular UE
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel13.pdsch_payload_type = 2; // not BR
dl_config_pdu->dlsch_pdu.dlsch_pdu_rel13.initial_transmission_sf_io = 0xFFFF; // absolute SF
dl_config_request->header.message_id = NFAPI_DL_CONFIG_REQUEST;
dl_config_request->sfn_sf = sfn_sf;
// Program TX Request
TX_req = &eNB->TX_req[CC_id].tx_request_body.tx_pdu_list[eNB->TX_req[CC_id].tx_request_body.number_of_pdus];
TX_req->pdu_length = bcch_sdu_length;
TX_req->pdu_index = eNB->pdu_index[CC_id]++;
TX_req->num_segments = 1;
TX_req->segments[0].segment_length = bcch_sdu_length;
TX_req->segments[0].segment_data = cc->BCCH_pdu.payload;
eNB->TX_req[CC_id].tx_request_body.number_of_pdus++;
eNB->TX_req[CC_id].sfn_sf = sfn_sf;
eNB->TX_req[CC_id].tx_request_body.tl.tag = NFAPI_TX_REQUEST_BODY_TAG;
eNB->TX_req[CC_id].header.message_id = NFAPI_TX_REQUEST;
} else {
LOG_E(MAC,
"[eNB %d] CCid %d Frame %d, subframe %d : Cannot add DCI 1A for SI\n",
module_idP, CC_id, frameP, subframeP);
}
T(T_ENB_MAC_UE_DL_PDU_WITH_DATA, T_INT(module_idP), T_INT(CC_id), T_INT(0xffff),
T_INT(frameP), T_INT(subframeP), T_INT(0), T_BUFFER(cc->BCCH_pdu.payload, bcch_sdu_length));
ws_trace_t tmp = {.direction = DIRECTION_DOWNLINK,
.pdu_buffer = cc->BCCH_pdu.payload,
.pdu_buffer_size = bcch_sdu_length,
.ueid = 0xffff,
.rntiType = WS_SI_RNTI,
.rnti = 0xffff,
.sysFrame = eNB->frame,
.subframe = eNB->subframe};
trace_pdu(&tmp);
if (cc->tdd_Config != NULL) { //TDD
LOG_D(MAC,
"[eNB] Frame %d : Scheduling BCCH->DLSCH (TDD) for CC_id %d SI %d bytes (mcs %d, rb 3)\n",
frameP, CC_id, bcch_sdu_length, mcs);
} else {
LOG_D(MAC, "[eNB] Frame %d : Scheduling BCCH->DLSCH (FDD) for CC_id %d SI %d bytes (mcs %d, rb 3)\n", frameP, CC_id, bcch_sdu_length, mcs);
}
eNB->eNB_stats[CC_id].total_num_bcch_pdu += 1;
eNB->eNB_stats[CC_id].bcch_buffer = bcch_sdu_length;
eNB->eNB_stats[CC_id].total_bcch_buffer += bcch_sdu_length;
eNB->eNB_stats[CC_id].bcch_mcs = mcs;
//printf("SI %d.%d\n", frameP, subframeP);/////////////////////////////////////////******************************
} else {
//LOG_D(MAC,"[eNB %d] Frame %d : BCCH not active \n",Mod_id,frame);
}
}
}
schedule_SIB1_BR(module_idP, frameP, subframeP);
schedule_SI_BR(module_idP, frameP, subframeP);
stop_meas(&eNB->schedule_si);
}
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