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0e6e84c3c0c2693350df38c61d98cbf6ce568460
openairinterface5g/openair2/LAYER2/MAC/eNB_scheduler_bch.c
T
Cedric Roux 0e6e84c3c0 carrier aggregation preparatory work: 
- mac_rrc_data_req/mac_rrc_data_ind API modification
- ITTI message RRC_MAC_CCCH_DATA_IND updated
- substructure "carrier" introduced in "eNB_rrc_inst"
- ASN.1 messages SIB1/SIB23 adapted
- handover not correctly handled (CC_id not used)


git-svn-id: http://svn.eurecom.fr/openair4G/trunk@7456 818b1a75-f10b-46b9-bf7c-635c3b92a50f
2015-05-22 07:53:10 +00:00

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/*******************************************************************************
OpenAirInterface
Copyright(c) 1999 - 2014 Eurecom
OpenAirInterface is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenAirInterface is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with OpenAirInterface.The full GNU General Public License is
included in this distribution in the file called "COPYING". If not,
see <http://www.gnu.org/licenses/>.
Contact Information
OpenAirInterface Admin: openair_admin@eurecom.fr
OpenAirInterface Tech : openair_tech@eurecom.fr
OpenAirInterface Dev : openair4g-devel@eurecom.fr
Address : Eurecom, Campus SophiaTech, 450 Route des Chappes, CS 50193 - 06904 Biot Sophia Antipolis cedex, FRANCE
*******************************************************************************/
/*! \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 "PHY/defs.h"
#include "PHY/extern.h"
#include "SCHED/defs.h"
#include "SCHED/extern.h"
#include "LAYER2/MAC/defs.h"
#include "LAYER2/MAC/proto.h"
#include "LAYER2/MAC/extern.h"
#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 "LAYER2/MAC/pre_processor.c"
#include "pdcp.h"
#if defined(ENABLE_ITTI)
# include "intertask_interface.h"
#endif
#define ENABLE_MAC_PAYLOAD_DEBUG
#define DEBUG_eNB_SCHEDULER 1
//------------------------------------------------------------------------------
void
schedule_SI(
module_id_t module_idP,
frame_t frameP,
unsigned int* nprbP,
unsigned int* nCCEP
)
//------------------------------------------------------------------------------
{
int8_t bcch_sdu_length;
int mcs = -1;
void *BCCH_alloc_pdu;
int CC_id;
eNB_MAC_INST *eNB = &eNB_mac_inst[module_idP];
start_meas(&eNB->schedule_si);
for (CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
BCCH_alloc_pdu=(void*)&eNB->common_channels[CC_id].BCCH_alloc_pdu;
bcch_sdu_length = mac_rrc_data_req(module_idP,
CC_id,
frameP,
BCCH,1,
&eNB->common_channels[CC_id].BCCH_pdu.payload[0],
1,
module_idP,
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,CC_id,frameP,bcch_sdu_length);
if (bcch_sdu_length <= (mac_xface->get_TBS_DL(0,3))) {
mcs=0;
} else if (bcch_sdu_length <= (mac_xface->get_TBS_DL(1,3))) {
mcs=1;
} else if (bcch_sdu_length <= (mac_xface->get_TBS_DL(2,3))) {
mcs=2;
} else if (bcch_sdu_length <= (mac_xface->get_TBS_DL(3,3))) {
mcs=3;
} else if (bcch_sdu_length <= (mac_xface->get_TBS_DL(4,3))) {
mcs=4;
} else if (bcch_sdu_length <= (mac_xface->get_TBS_DL(5,3))) {
mcs=5;
} else if (bcch_sdu_length <= (mac_xface->get_TBS_DL(6,3))) {
mcs=6;
} else if (bcch_sdu_length <= (mac_xface->get_TBS_DL(7,3))) {
mcs=7;
} else if (bcch_sdu_length <= (mac_xface->get_TBS_DL(8,3))) {
mcs=8;
}
if (PHY_vars_eNB_g[module_idP][CC_id]->lte_frame_parms.frame_type == TDD) {
switch (PHY_vars_eNB_g[module_idP][CC_id]->lte_frame_parms.N_RB_DL) {
case 6:
((DCI1A_1_5MHz_TDD_1_6_t*)BCCH_alloc_pdu)->mcs = mcs;
break;
case 25:
((DCI1A_5MHz_TDD_1_6_t*)BCCH_alloc_pdu)->mcs = mcs;
break;
case 50:
((DCI1A_10MHz_TDD_1_6_t*)BCCH_alloc_pdu)->mcs = mcs;
break;
case 100:
((DCI1A_20MHz_TDD_1_6_t*)BCCH_alloc_pdu)->mcs = mcs;
break;
}
} else {
switch (PHY_vars_eNB_g[module_idP][CC_id]->lte_frame_parms.N_RB_DL) {
case 6:
((DCI1A_1_5MHz_FDD_t*)BCCH_alloc_pdu)->mcs = mcs;
break;
case 25:
((DCI1A_5MHz_FDD_t*)BCCH_alloc_pdu)->mcs = mcs;
break;
case 50:
((DCI1A_10MHz_FDD_t*)BCCH_alloc_pdu)->mcs = mcs;
break;
case 100:
((DCI1A_20MHz_FDD_t*)BCCH_alloc_pdu)->mcs = mcs;
break;
}
}
if (opt_enabled == 1) {
trace_pdu(1,
&eNB->common_channels[CC_id].BCCH_pdu.payload[0],
bcch_sdu_length,
0xffff,
4,
0xffff,
eNB->subframe,
0,
0);
LOG_D(OPT,"[eNB %d][BCH] Frame %d trace pdu for rnti %x with size %d\n",
module_idP, frameP, 0xffff, bcch_sdu_length);
}
if (PHY_vars_eNB_g[module_idP][CC_id]->lte_frame_parms.frame_type == TDD) {
LOG_D(MAC,"[eNB] Frame %d : Scheduling BCCH->DLSCH (TDD) for SI %d bytes (mcs %d, rb 3, TBS %d)\n",
frameP,
bcch_sdu_length,
mcs,
mac_xface->get_TBS_DL(mcs,3));
} else {
LOG_D(MAC,"[eNB] Frame %d : Scheduling BCCH->DLSCH (FDD) for SI %d bytes (mcs %d, rb 3, TBS %d)\n",
frameP,
bcch_sdu_length,
mcs,
mac_xface->get_TBS_DL(mcs,3));
}
eNB->common_channels[CC_id].bcch_active=1;
nprbP[CC_id]=3;
nCCEP[CC_id]=4;
} else {
eNB->common_channels[CC_id].bcch_active=0;
nprbP[CC_id]=0;
nCCEP[CC_id]=0;
//LOG_D(MAC,"[eNB %d] Frame %d : BCCH not active \n",Mod_id,frame);
}
}
// this might be misleading when bcch is inactive
stop_meas(&eNB->schedule_si);
return;
}
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