maki/openairinterface5g
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
Files
0ed42440ab5230a622252d2fc4e45075729dcde7
openairinterface5g/openair2/LAYER2/MAC/eNB_scheduler_ulsch.c
T
Cedric Roux 256c5ab060 improve crnti reception (still not correct, we need to reconfigure the UE) 
TODO: if the UE did random access (followed by a MAC uplink with
CRNTI) because none of its scheduling request was granted, then
according to 36.321 5.4.4 the UE's MAC will notify RRC to release
PUCCH/SRS. According to 36.331 5.3.13 the UE will then apply
default configuration for CQI reporting and scheduling requests,
which basically means that the CQI requests won't work anymore and
that the UE won't do any scheduling request anymore as long as the
eNB doesn't reconfigure the UE.
We have to take care of this. As the code is, nothing is done and
the UE state in the eNB is wrong.
2017-10-18 09:56:29 +02:00

1247 lines
57 KiB
C
Raw Blame History

/*
* 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 eNB_scheduler_ulsch.c
* \brief eNB procedures for the ULSCH 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
#include "T.h"
#define ENABLE_MAC_PAYLOAD_DEBUG
#define DEBUG_eNB_SCHEDULER 1
// This table holds the allowable PRB sizes for ULSCH transmissions
uint8_t rb_table[34] = {1,2,3,4,5,6,8,9,10,12,15,16,18,20,24,25,27,30,32,36,40,45,48,50,54,60,64,72,75,80,81,90,96,100};
void rx_sdu(const module_id_t enb_mod_idP,
const int CC_idP,
const frame_t frameP,
const sub_frame_t subframeP,
const rnti_t rntiP,
uint8_t *sduP,
const uint16_t sdu_lenP,
const uint16_t timing_advance,
const uint8_t ul_cqi)
{
int current_rnti = rntiP;
unsigned char rx_ces[MAX_NUM_CE],num_ce,num_sdu,i,*payload_ptr;
unsigned char rx_lcids[NB_RB_MAX];
unsigned short rx_lengths[NB_RB_MAX];
int UE_id = find_UE_id(enb_mod_idP, current_rnti);
int RA_id;
int ii,j;
eNB_MAC_INST *eNB = RC.mac[enb_mod_idP];
int harq_pid = subframe2harqpid(&eNB->common_channels[CC_idP],frameP,subframeP);
UE_list_t *UE_list= &eNB->UE_list;
int crnti_rx=0;
int old_buffer_info;
RA_TEMPLATE *RA_template = (RA_TEMPLATE *)&RC.mac[enb_mod_idP]->common_channels[CC_idP].RA_template[0];
int first_rb = 0;
start_meas(&eNB->rx_ulsch_sdu);
if ((UE_id > NUMBER_OF_UE_MAX) || (UE_id == -1) )
for(ii=0; ii<NB_RB_MAX; ii++) {
rx_lengths[ii] = 0;
}
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_RX_SDU,1);
if (opt_enabled == 1) {
trace_pdu(0, sduP,sdu_lenP, 0, 3, current_rnti, frameP, subframeP, 0,0);
LOG_D(OPT,"[eNB %d][ULSCH] Frame %d rnti %x with size %d\n",
enb_mod_idP, frameP, current_rnti, sdu_lenP);
}
if (UE_id!=-1) {
LOG_D(MAC,"[eNB %d][PUSCH %d] CC_id %d Received ULSCH sdu round %d from PHY (rnti %x, UE_id %d) ul_cqi %d\n",enb_mod_idP,harq_pid,CC_idP, UE_list->UE_sched_ctrl[UE_id].round_UL[CC_idP][harq_pid],
current_rnti, UE_id,ul_cqi);
AssertFatal(UE_list->UE_sched_ctrl[UE_id].round_UL[CC_idP][harq_pid] < 8,
"round >= 8\n");
if (sduP!=NULL) {
UE_list->UE_sched_ctrl[UE_id].ul_inactivity_timer = 0;
UE_list->UE_sched_ctrl[UE_id].ul_failure_timer = 0;
UE_list->UE_sched_ctrl[UE_id].ul_scheduled &= (~(1<<harq_pid));
/* don't take into account TA if timer is running */
if (UE_list->UE_sched_ctrl[UE_id].ta_timer == 0)
UE_list->UE_sched_ctrl[UE_id].ta_update = timing_advance;
UE_list->UE_sched_ctrl[UE_id].pusch_snr[CC_idP] = ul_cqi;
UE_list->UE_sched_ctrl[UE_id].ul_consecutive_errors = 0;
first_rb = UE_list->UE_template[CC_idP][UE_id].first_rb_ul[harq_pid];
if (UE_list->UE_sched_ctrl[UE_id].ul_out_of_sync > 0) {
UE_list->UE_sched_ctrl[UE_id].ul_out_of_sync=0;
mac_eNB_rrc_ul_in_sync(enb_mod_idP,CC_idP,frameP,subframeP,UE_RNTI(enb_mod_idP,UE_id));
}
}
else { // we've got an error
LOG_D(MAC,"[eNB %d][PUSCH %d] CC_id %d ULSCH in error in round %d, ul_cqi %d\n",enb_mod_idP,harq_pid,CC_idP,
UE_list->UE_sched_ctrl[UE_id].round_UL[CC_idP][harq_pid],ul_cqi);
// AssertFatal(1==0,"ulsch in error\n");
if (UE_list->UE_sched_ctrl[UE_id].round_UL[CC_idP][harq_pid] == 3) {
UE_list->UE_sched_ctrl[UE_id].ul_scheduled &= (~(1<<harq_pid));
UE_list->UE_sched_ctrl[UE_id].round_UL[CC_idP][harq_pid]=0;
if (UE_list->UE_sched_ctrl[UE_id].ul_consecutive_errors++ == 10)
UE_list->UE_sched_ctrl[UE_id].ul_failure_timer = 1;
}
else UE_list->UE_sched_ctrl[UE_id].round_UL[CC_idP][harq_pid]++;
return;
}
}
else if ((RA_id = find_RA_id(enb_mod_idP,CC_idP,current_rnti))!=-1) { // Check if this is an RA process for the rnti
AssertFatal(eNB->common_channels[CC_idP].radioResourceConfigCommon->rach_ConfigCommon.maxHARQ_Msg3Tx>1,
"maxHARQ %d should be greater than 1\n",
(int)eNB->common_channels[CC_idP].radioResourceConfigCommon->rach_ConfigCommon.maxHARQ_Msg3Tx);
LOG_D(MAC,"[eNB %d][PUSCH %d] CC_id %d Received ULSCH sdu round %d from PHY (rnti %x, RA_id %d) ul_cqi %d\n",enb_mod_idP,harq_pid,CC_idP,
RA_template[RA_id].msg3_round,
current_rnti,RA_id,ul_cqi);
first_rb = RA_template->msg3_first_rb;
if (sduP==NULL) { // we've got an error on Msg3
LOG_D(MAC,"[eNB %d] CC_id %d, RA %d ULSCH in error in round %d/%d\n",enb_mod_idP,CC_idP,RA_id,
RA_template[RA_id].msg3_round,
(int)eNB->common_channels[CC_idP].radioResourceConfigCommon->rach_ConfigCommon.maxHARQ_Msg3Tx);
if (RA_template[RA_id].msg3_round == eNB->common_channels[CC_idP].radioResourceConfigCommon->rach_ConfigCommon.maxHARQ_Msg3Tx-1) {
cancel_ra_proc(enb_mod_idP,CC_idP,frameP,current_rnti);
}
else {
first_rb = UE_list->UE_template[CC_idP][UE_id].first_rb_ul[harq_pid];
RA_template[RA_id].msg3_round++;
// prepare handling of retransmission
RA_template[RA_id].Msg3_frame += ((RA_template[RA_id].Msg3_subframe>1) ? 1 : 0);
RA_template[RA_id].Msg3_subframe = (RA_template[RA_id].Msg3_subframe+8)%10;
add_msg3(enb_mod_idP,CC_idP, &RA_template[RA_id],frameP,subframeP);
}
return;
}
}
else {
LOG_W(MAC,"Cannot find UE or RA corresponding to ULSCH rnti %x, dropping it\n", current_rnti);
return;
}
payload_ptr = parse_ulsch_header(sduP,&num_ce,&num_sdu,rx_ces,rx_lcids,rx_lengths,sdu_lenP);
T(T_ENB_MAC_UE_UL_PDU, T_INT(enb_mod_idP), T_INT(CC_idP), T_INT(current_rnti), T_INT(frameP), T_INT(subframeP),
T_INT(harq_pid), T_INT(sdu_lenP), T_INT(num_ce), T_INT(num_sdu));
T(T_ENB_MAC_UE_UL_PDU_WITH_DATA, T_INT(enb_mod_idP), T_INT(CC_idP), T_INT(current_rnti), T_INT(frameP), T_INT(subframeP),
T_INT(harq_pid), T_INT(sdu_lenP), T_INT(num_ce), T_INT(num_sdu), T_BUFFER(sduP, sdu_lenP));
eNB->eNB_stats[CC_idP].ulsch_bytes_rx=sdu_lenP;
eNB->eNB_stats[CC_idP].total_ulsch_bytes_rx+=sdu_lenP;
eNB->eNB_stats[CC_idP].total_ulsch_pdus_rx+=1;
UE_list->UE_sched_ctrl[UE_id].round_UL[CC_idP][harq_pid] = 0;
// control element
for (i=0; i<num_ce; i++) {
T(T_ENB_MAC_UE_UL_CE, T_INT(enb_mod_idP), T_INT(CC_idP), T_INT(current_rnti), T_INT(frameP), T_INT(subframeP),
T_INT(rx_ces[i]));
switch (rx_ces[i]) { // implement and process BSR + CRNTI +
case POWER_HEADROOM:
if (UE_id != -1) {
UE_list->UE_template[CC_idP][UE_id].phr_info = (payload_ptr[0] & 0x3f) - PHR_MAPPING_OFFSET;
LOG_D(MAC, "[eNB %d] CC_id %d MAC CE_LCID %d : Received PHR PH = %d (db)\n",
enb_mod_idP, CC_idP, rx_ces[i], UE_list->UE_template[CC_idP][UE_id].phr_info);
UE_list->UE_template[CC_idP][UE_id].phr_info_configured=1;
UE_list->UE_sched_ctrl[UE_id].phr_received = 1;
}
payload_ptr+=sizeof(POWER_HEADROOM_CMD);
break;
case CRNTI: {
int old_rnti = (((uint16_t)payload_ptr[0])<<8) + payload_ptr[1];
int old_UE_id = find_UE_id(enb_mod_idP, old_rnti);
LOG_D(MAC, "[eNB %d] Frame %d, Subframe %d CC_id %d MAC CE_LCID %d (ce %d/%d): CRNTI %x (UE_id %d) in Msg3\n",
enb_mod_idP, frameP, subframeP, CC_idP, rx_ces[i], i, num_ce, old_rnti, old_UE_id);
if (old_UE_id != -1) {
/* TODO: if the UE did random access (followed by a MAC uplink with
* CRNTI) because none of its scheduling request was granted, then
* according to 36.321 5.4.4 the UE's MAC will notify RRC to release
* PUCCH/SRS. According to 36.331 5.3.13 the UE will then apply
* default configuration for CQI reporting and scheduling requests,
* which basically means that the CQI requests won't work anymore and
* that the UE won't do any scheduling request anymore as long as the
* eNB doesn't reconfigure the UE.
* We have to take care of this. As the code is, nothing is done and
* the UE state in the eNB is wrong.
*/
UE_id = old_UE_id;
UE_list->UE_sched_ctrl[UE_id].ul_inactivity_timer = 0;
UE_list->UE_sched_ctrl[UE_id].ul_failure_timer = 0;
if (UE_list->UE_sched_ctrl[UE_id].ul_out_of_sync > 0) {
UE_list->UE_sched_ctrl[UE_id].ul_out_of_sync = 0;
mac_eNB_rrc_ul_in_sync(enb_mod_idP, CC_idP, frameP, subframeP, old_rnti);
}
/* receiving CRNTI means that the current rnti has to go away */
cancel_ra_proc(enb_mod_idP,CC_idP,frameP,current_rnti);
current_rnti = old_rnti;
}
crnti_rx=1;
payload_ptr+=2;
break;
}
case TRUNCATED_BSR:
case SHORT_BSR: {
uint8_t lcgid;
lcgid = (payload_ptr[0] >> 6);
LOG_D(MAC, "[eNB %d] CC_id %d MAC CE_LCID %d : Received short BSR LCGID = %u bsr = %d\n",
enb_mod_idP, CC_idP, rx_ces[i], lcgid, payload_ptr[0] & 0x3f);
if (crnti_rx==1)
LOG_D(MAC, "[eNB %d] CC_id %d MAC CE_LCID %d : Received short BSR LCGID = %u bsr = %d\n",
enb_mod_idP, CC_idP, rx_ces[i], lcgid, payload_ptr[0] & 0x3f);
if (UE_id != -1) {
UE_list->UE_template[CC_idP][UE_id].bsr_info[lcgid] = (payload_ptr[0] & 0x3f);
// update buffer info
UE_list->UE_template[CC_idP][UE_id].ul_buffer_info[lcgid]=BSR_TABLE[UE_list->UE_template[CC_idP][UE_id].bsr_info[lcgid]];
UE_list->UE_template[CC_idP][UE_id].ul_total_buffer= UE_list->UE_template[CC_idP][UE_id].ul_buffer_info[lcgid];
RC.eNB[enb_mod_idP][CC_idP]->pusch_stats_bsr[UE_id][(frameP*10)+subframeP] = (payload_ptr[0] & 0x3f);
if (UE_id == UE_list->head)
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME(VCD_SIGNAL_DUMPER_VARIABLES_UE0_BSR,RC.eNB[enb_mod_idP][CC_idP]->pusch_stats_bsr[UE_id][(frameP*10)+subframeP]);
if (UE_list->UE_template[CC_idP][UE_id].ul_buffer_creation_time[lcgid] == 0 ) {
UE_list->UE_template[CC_idP][UE_id].ul_buffer_creation_time[lcgid]=frameP;
}
if (mac_eNB_get_rrc_status(enb_mod_idP,UE_RNTI(enb_mod_idP,UE_id)) < RRC_CONNECTED)
LOG_D(MAC, "[eNB %d] CC_id %d MAC CE_LCID %d : ul_total_buffer = %d (lcg increment %d)\n",
enb_mod_idP, CC_idP, rx_ces[i], UE_list->UE_template[CC_idP][UE_id].ul_total_buffer,
UE_list->UE_template[CC_idP][UE_id].ul_buffer_info[lcgid]);
}
else {
}
payload_ptr += 1;//sizeof(SHORT_BSR); // fixme
}
break;
case LONG_BSR:
if (UE_id != -1) {
UE_list->UE_template[CC_idP][UE_id].bsr_info[LCGID0] = ((payload_ptr[0] & 0xFC) >> 2);
UE_list->UE_template[CC_idP][UE_id].bsr_info[LCGID1] =
((payload_ptr[0] & 0x03) << 4) | ((payload_ptr[1] & 0xF0) >> 4);
UE_list->UE_template[CC_idP][UE_id].bsr_info[LCGID2] =
((payload_ptr[1] & 0x0F) << 2) | ((payload_ptr[2] & 0xC0) >> 6);
UE_list->UE_template[CC_idP][UE_id].bsr_info[LCGID3] = (payload_ptr[2] & 0x3F);
// update buffer info
old_buffer_info = UE_list->UE_template[CC_idP][UE_id].ul_buffer_info[LCGID0];
UE_list->UE_template[CC_idP][UE_id].ul_buffer_info[LCGID0]=BSR_TABLE[UE_list->UE_template[CC_idP][UE_id].bsr_info[LCGID0]];
UE_list->UE_template[CC_idP][UE_id].ul_total_buffer+= UE_list->UE_template[CC_idP][UE_id].ul_buffer_info[LCGID0];
if (UE_list->UE_template[CC_idP][UE_id].ul_total_buffer >= old_buffer_info)
UE_list->UE_template[CC_idP][UE_id].ul_total_buffer -= old_buffer_info;
else
UE_list->UE_template[CC_idP][UE_id].ul_total_buffer = 0;
old_buffer_info = UE_list->UE_template[CC_idP][UE_id].ul_buffer_info[LCGID1];
UE_list->UE_template[CC_idP][UE_id].ul_buffer_info[LCGID1]=BSR_TABLE[UE_list->UE_template[CC_idP][UE_id].bsr_info[LCGID1]];
UE_list->UE_template[CC_idP][UE_id].ul_total_buffer+= UE_list->UE_template[CC_idP][UE_id].ul_buffer_info[LCGID1];
if (UE_list->UE_template[CC_idP][UE_id].ul_total_buffer >= old_buffer_info)
UE_list->UE_template[CC_idP][UE_id].ul_total_buffer -= old_buffer_info;
else
UE_list->UE_template[CC_idP][UE_id].ul_total_buffer = 0;
old_buffer_info = UE_list->UE_template[CC_idP][UE_id].ul_buffer_info[LCGID2];
UE_list->UE_template[CC_idP][UE_id].ul_buffer_info[LCGID2]=BSR_TABLE[UE_list->UE_template[CC_idP][UE_id].bsr_info[LCGID2]];
UE_list->UE_template[CC_idP][UE_id].ul_total_buffer+= UE_list->UE_template[CC_idP][UE_id].ul_buffer_info[LCGID2];
if (UE_list->UE_template[CC_idP][UE_id].ul_total_buffer >= old_buffer_info)
UE_list->UE_template[CC_idP][UE_id].ul_total_buffer -= old_buffer_info;
else
UE_list->UE_template[CC_idP][UE_id].ul_total_buffer = 0;
old_buffer_info = UE_list->UE_template[CC_idP][UE_id].ul_buffer_info[LCGID3];
UE_list->UE_template[CC_idP][UE_id].ul_buffer_info[LCGID3]=BSR_TABLE[UE_list->UE_template[CC_idP][UE_id].bsr_info[LCGID3]];
UE_list->UE_template[CC_idP][UE_id].ul_total_buffer+= UE_list->UE_template[CC_idP][UE_id].ul_buffer_info[LCGID3];
if (UE_list->UE_template[CC_idP][UE_id].ul_total_buffer >= old_buffer_info)
UE_list->UE_template[CC_idP][UE_id].ul_total_buffer -= old_buffer_info;
else
UE_list->UE_template[CC_idP][UE_id].ul_total_buffer = 0;
LOG_D(MAC, "[eNB %d] CC_id %d MAC CE_LCID %d: Received long BSR LCGID0 = %u LCGID1 = "
"%u LCGID2 = %u LCGID3 = %u\n",
enb_mod_idP, CC_idP,
rx_ces[i],
UE_list->UE_template[CC_idP][UE_id].bsr_info[LCGID0],
UE_list->UE_template[CC_idP][UE_id].bsr_info[LCGID1],
UE_list->UE_template[CC_idP][UE_id].bsr_info[LCGID2],
UE_list->UE_template[CC_idP][UE_id].bsr_info[LCGID3]);
if (crnti_rx==1)
LOG_D(MAC, "[eNB %d] CC_id %d MAC CE_LCID %d: Received long BSR LCGID0 = %u LCGID1 = "
"%u LCGID2 = %u LCGID3 = %u\n",
enb_mod_idP, CC_idP,
rx_ces[i],
UE_list->UE_template[CC_idP][UE_id].bsr_info[LCGID0],
UE_list->UE_template[CC_idP][UE_id].bsr_info[LCGID1],
UE_list->UE_template[CC_idP][UE_id].bsr_info[LCGID2],
UE_list->UE_template[CC_idP][UE_id].bsr_info[LCGID3]);
if (UE_list->UE_template[CC_idP][UE_id].bsr_info[LCGID0] == 0 ) {
UE_list->UE_template[CC_idP][UE_id].ul_buffer_creation_time[LCGID0]=0;
} else if (UE_list->UE_template[CC_idP][UE_id].ul_buffer_creation_time[LCGID0] == 0) {
UE_list->UE_template[CC_idP][UE_id].ul_buffer_creation_time[LCGID0]=frameP;
}
if (UE_list->UE_template[CC_idP][UE_id].bsr_info[LCGID1] == 0 ) {
UE_list->UE_template[CC_idP][UE_id].ul_buffer_creation_time[LCGID1]=0;
} else if (UE_list->UE_template[CC_idP][UE_id].ul_buffer_creation_time[LCGID1] == 0) {
UE_list->UE_template[CC_idP][UE_id].ul_buffer_creation_time[LCGID1]=frameP;
}
if (UE_list->UE_template[CC_idP][UE_id].bsr_info[LCGID2] == 0 ) {
UE_list->UE_template[CC_idP][UE_id].ul_buffer_creation_time[LCGID2]=0;
} else if (UE_list->UE_template[CC_idP][UE_id].ul_buffer_creation_time[LCGID2] == 0) {
UE_list->UE_template[CC_idP][UE_id].ul_buffer_creation_time[LCGID2]=frameP;
}
if (UE_list->UE_template[CC_idP][UE_id].bsr_info[LCGID3] == 0 ) {
UE_list->UE_template[CC_idP][UE_id].ul_buffer_creation_time[LCGID3]= 0;
} else if (UE_list->UE_template[CC_idP][UE_id].ul_buffer_creation_time[LCGID3] == 0) {
UE_list->UE_template[CC_idP][UE_id].ul_buffer_creation_time[LCGID3]=frameP;
}
}
payload_ptr += 3;////sizeof(LONG_BSR);
break;
default:
LOG_E(MAC, "[eNB %d] CC_id %d Received unknown MAC header (0x%02x)\n", enb_mod_idP, CC_idP, rx_ces[i]);
break;
}
}
for (i=0; i<num_sdu; i++) {
LOG_D(MAC,"SDU Number %d MAC Subheader SDU_LCID %d, length %d\n",i,rx_lcids[i],rx_lengths[i]);
T(T_ENB_MAC_UE_UL_SDU, T_INT(enb_mod_idP), T_INT(CC_idP), T_INT(current_rnti), T_INT(frameP), T_INT(subframeP),
T_INT(rx_lcids[i]), T_INT(rx_lengths[i]));
T(T_ENB_MAC_UE_UL_SDU_WITH_DATA, T_INT(enb_mod_idP), T_INT(CC_idP), T_INT(current_rnti), T_INT(frameP), T_INT(subframeP),
T_INT(rx_lcids[i]), T_INT(rx_lengths[i]), T_BUFFER(payload_ptr, rx_lengths[i]));
switch (rx_lcids[i]) {
case CCCH :
if (rx_lengths[i] > CCCH_PAYLOAD_SIZE_MAX) {
LOG_E(MAC, "[eNB %d/%d] frame %d received CCCH of size %d (too big, maximum allowed is %d, sdu_len %d), dropping packet\n",
enb_mod_idP, CC_idP, frameP, rx_lengths[i], CCCH_PAYLOAD_SIZE_MAX,sdu_lenP);
break;
}
LOG_D(MAC,"[eNB %d][RAPROC] CC_id %d Frame %d, Received CCCH: %x.%x.%x.%x.%x.%x, Terminating RA procedure for UE rnti %x\n",
enb_mod_idP,CC_idP,frameP,
payload_ptr[0],payload_ptr[1],payload_ptr[2],payload_ptr[3],payload_ptr[4], payload_ptr[5], current_rnti);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_TERMINATE_RA_PROC,1);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_TERMINATE_RA_PROC,0);
for (ii=0; ii<NB_RA_PROC_MAX; ii++) {
RA_TEMPLATE *RA_template = &eNB->common_channels[CC_idP].RA_template[ii];
LOG_D(MAC,"[eNB %d][RAPROC] CC_id %d Checking proc %d : rnti (%x, %x), active %d\n",
enb_mod_idP, CC_idP, ii,
RA_template->rnti, current_rnti,
RA_template->RA_active);
if ((RA_template->rnti==current_rnti) &&
(RA_template->RA_active==TRUE)) {
//payload_ptr = parse_ulsch_header(msg3,&num_ce,&num_sdu,rx_ces,rx_lcids,rx_lengths,msg3_len);
if (UE_id < 0) {
memcpy(&RA_template->cont_res_id[0],payload_ptr,6);
LOG_D(MAC,"[eNB %d][RAPROC] CC_id %d Frame %d CCCH: Received Msg3: length %d, offset %ld\n",
enb_mod_idP,CC_idP,frameP,rx_lengths[i],payload_ptr-sduP);
if ((UE_id=add_new_ue(enb_mod_idP,CC_idP,eNB->common_channels[CC_idP].RA_template[ii].rnti,harq_pid
#ifdef Rel14
,eNB->common_channels[CC_idP].RA_template[ii].rach_resource_type
#endif
)) == -1 ) {
AssertFatal(1==0,"[MAC][eNB] Max user count reached\n");
// kill RA procedure
} else
LOG_D(MAC,"[eNB %d][RAPROC] CC_id %d Frame %d Added user with rnti %x => UE %d\n",
enb_mod_idP,CC_idP,frameP,RA_template->rnti,UE_id);
} else {
LOG_D(MAC,"[eNB %d][RAPROC] CC_id %d Frame %d CCCH: Received Msg3 from already registered UE %d: length %d, offset %ld\n",
enb_mod_idP,CC_idP,frameP,UE_id,rx_lengths[i],payload_ptr-sduP);
// kill RA procedure
}
mac_rrc_data_ind(
enb_mod_idP,
CC_idP,
frameP,subframeP,
current_rnti,
CCCH,
(uint8_t*)payload_ptr,
rx_lengths[i],
ENB_FLAG_YES,
enb_mod_idP,
0
);
if (num_ce >0) { // handle msg3 which is not RRCConnectionRequest
// process_ra_message(msg3,num_ce,rx_lcids,rx_ces);
}
// prepare transmission of Msg4
RA_template->generate_Msg4 = 1;
RA_template->wait_ack_Msg4 = 0;
// Program Msg4 PDCCH+DLSCH/MPDCCH transmission 4 subframes from now, // Check if this is ok for BL/CE, or if the rule is different
RA_template->Msg4_frame = frameP + ((subframeP>5) ? 1 : 0);
RA_template->Msg4_subframe = (subframeP+4)%10;
} // if process is active
} // loop on RA processes
break ;
case DCCH :
case DCCH1 :
// if(eNB_mac_inst[module_idP][CC_idP].Dcch_lchan[UE_id].Active==1){
#if defined(ENABLE_MAC_PAYLOAD_DEBUG)
LOG_T(MAC,"offset: %d\n",(unsigned char)((unsigned char*)payload_ptr-sduP));
for (j=0; j<32; j++) {
LOG_T(MAC,"%x ",payload_ptr[j]);
}
LOG_T(MAC,"\n");
#endif
if (UE_id != -1) {
// adjust buffer occupancy of the correponding logical channel group
if (UE_list->UE_template[CC_idP][UE_id].ul_buffer_info[UE_list->UE_template[CC_idP][UE_id].lcgidmap[rx_lcids[i]]] >= rx_lengths[i])
UE_list->UE_template[CC_idP][UE_id].ul_buffer_info[UE_list->UE_template[CC_idP][UE_id].lcgidmap[rx_lcids[i]]] -= rx_lengths[i];
else
UE_list->UE_template[CC_idP][UE_id].ul_buffer_info[UE_list->UE_template[CC_idP][UE_id].lcgidmap[rx_lcids[i]]] = 0;
LOG_D(MAC,"[eNB %d] CC_id %d Frame %d : ULSCH -> UL-DCCH, received %d bytes form UE %d on LCID %d \n",
enb_mod_idP,CC_idP,frameP, rx_lengths[i], UE_id, rx_lcids[i]);
mac_rlc_data_ind(
enb_mod_idP,
current_rnti,
enb_mod_idP,
frameP,
ENB_FLAG_YES,
MBMS_FLAG_NO,
rx_lcids[i],
(char *)payload_ptr,
rx_lengths[i],
1,
NULL);//(unsigned int*)crc_status);
UE_list->eNB_UE_stats[CC_idP][UE_id].num_pdu_rx[rx_lcids[i]]+=1;
UE_list->eNB_UE_stats[CC_idP][UE_id].num_bytes_rx[rx_lcids[i]]+=rx_lengths[i];
} /* UE_id != -1 */
// }
break;
// all the DRBS
case DTCH:
default :
#if defined(ENABLE_MAC_PAYLOAD_DEBUG)
LOG_T(MAC,"offset: %d\n",(unsigned char)((unsigned char*)payload_ptr-sduP));
for (j=0; j<32; j++) {
LOG_T(MAC,"%x ",payload_ptr[j]);
}
LOG_T(MAC,"\n");
#endif
if (rx_lcids[i] < NB_RB_MAX ) {
LOG_D(MAC,"[eNB %d] CC_id %d Frame %d : ULSCH -> UL-DTCH, received %d bytes from UE %d for lcid %d\n",
enb_mod_idP,CC_idP,frameP, rx_lengths[i], UE_id, rx_lcids[i]);
if (UE_id != -1) {
// adjust buffer occupancy of the correponding logical channel group
LOG_D(MAC,"[eNB %d] CC_id %d Frame %d : ULSCH -> UL-DTCH, received %d bytes from UE %d for lcid %d, removing from LCGID %ld, %d\n",
enb_mod_idP,CC_idP,frameP, rx_lengths[i], UE_id,rx_lcids[i],
UE_list->UE_template[CC_idP][UE_id].lcgidmap[rx_lcids[i]],
UE_list->UE_template[CC_idP][UE_id].ul_buffer_info[UE_list->UE_template[CC_idP][UE_id].lcgidmap[rx_lcids[i]]]);
if (UE_list->UE_template[CC_idP][UE_id].ul_buffer_info[UE_list->UE_template[CC_idP][UE_id].lcgidmap[rx_lcids[i]]] >= rx_lengths[i])
UE_list->UE_template[CC_idP][UE_id].ul_buffer_info[UE_list->UE_template[CC_idP][UE_id].lcgidmap[rx_lcids[i]]] -= rx_lengths[i];
else
UE_list->UE_template[CC_idP][UE_id].ul_buffer_info[UE_list->UE_template[CC_idP][UE_id].lcgidmap[rx_lcids[i]]] = 0;
if ((rx_lengths[i] <SCH_PAYLOAD_SIZE_MAX) && (rx_lengths[i] > 0) ) { // MAX SIZE OF transport block
mac_rlc_data_ind(
enb_mod_idP,
current_rnti,
enb_mod_idP,
frameP,
ENB_FLAG_YES,
MBMS_FLAG_NO,
rx_lcids[i],
(char *)payload_ptr,
rx_lengths[i],
1,
NULL);//(unsigned int*)crc_status);
UE_list->eNB_UE_stats[CC_idP][UE_id].num_pdu_rx[rx_lcids[i]]+=1;
UE_list->eNB_UE_stats[CC_idP][UE_id].num_bytes_rx[rx_lcids[i]]+=rx_lengths[i];
}
else { /* rx_length[i] */
UE_list->eNB_UE_stats[CC_idP][UE_id].num_errors_rx+=1;
LOG_E(MAC,"[eNB %d] CC_id %d Frame %d : Max size of transport block reached LCID %d from UE %d ",
enb_mod_idP, CC_idP, frameP, rx_lcids[i], UE_id);
}
}
else {/*(UE_id != -1*/
LOG_E(MAC,"[eNB %d] CC_id %d Frame %d : received unsupported or unknown LCID %d from UE %d ",
enb_mod_idP, CC_idP, frameP, rx_lcids[i], UE_id);
}
}
break;
}
payload_ptr+=rx_lengths[i];
}
// Program ACK for PHICH
LOG_D(MAC,"Programming PHICH ACK for rnti %x harq_pid %d (first_rb %d)\n",current_rnti,harq_pid,first_rb);
nfapi_hi_dci0_request_body_t *hi_dci0_req = &eNB->HI_DCI0_req[CC_idP].hi_dci0_request_body;
nfapi_hi_dci0_request_pdu_t *hi_dci0_pdu = &hi_dci0_req->hi_dci0_pdu_list[hi_dci0_req->number_of_dci+hi_dci0_req->number_of_hi];
memset((void*)hi_dci0_pdu,0,sizeof(nfapi_hi_dci0_request_pdu_t));
hi_dci0_pdu->pdu_type = NFAPI_HI_DCI0_HI_PDU_TYPE;
hi_dci0_pdu->pdu_size = 2+sizeof(nfapi_hi_dci0_hi_pdu);
hi_dci0_pdu->hi_pdu.hi_pdu_rel8.resource_block_start = first_rb;
hi_dci0_pdu->hi_pdu.hi_pdu_rel8.cyclic_shift_2_for_drms = 0;
hi_dci0_pdu->hi_pdu.hi_pdu_rel8.hi_value = 1;
hi_dci0_req->number_of_hi++;
/* NN--> FK: we could either check the payload, or use a phy helper to detect a false msg3 */
if ((num_sdu == 0) && (num_ce==0)) {
if (UE_id != -1)
UE_list->eNB_UE_stats[CC_idP][UE_id].total_num_errors_rx+=1;
/*
if (msg3_flagP != NULL) {
if( *msg3_flagP == 1 ) {
LOG_N(MAC,"[eNB %d] CC_id %d frame %d : false msg3 detection: signal phy to canceling RA and remove the UE\n", enb_mod_idP, CC_idP, frameP);
*msg3_flagP=0;
}
}*/
} else {
if (UE_id != -1) {
UE_list->eNB_UE_stats[CC_idP][UE_id].pdu_bytes_rx=sdu_lenP;
UE_list->eNB_UE_stats[CC_idP][UE_id].total_pdu_bytes_rx+=sdu_lenP;
UE_list->eNB_UE_stats[CC_idP][UE_id].total_num_pdus_rx+=1;
}
}
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_RX_SDU,0);
stop_meas(&eNB->rx_ulsch_sdu);
}
uint32_t bytes_to_bsr_index(int32_t nbytes)
{
uint32_t i=0;
if (nbytes<0) {
return(0);
}
while ((i<BSR_TABLE_SIZE)&&
(BSR_TABLE[i]<=nbytes)) {
i++;
}
return(i-1);
}
void add_ue_ulsch_info(module_id_t module_idP, int CC_id, int UE_id, sub_frame_t subframeP, UE_ULSCH_STATUS status)
{
eNB_ulsch_info[module_idP][CC_id][UE_id].rnti = UE_RNTI(module_idP,UE_id);
eNB_ulsch_info[module_idP][CC_id][UE_id].subframe = subframeP;
eNB_ulsch_info[module_idP][CC_id][UE_id].status = status;
eNB_ulsch_info[module_idP][CC_id][UE_id].serving_num++;
}
unsigned char *parse_ulsch_header(unsigned char *mac_header,
unsigned char *num_ce,
unsigned char *num_sdu,
unsigned char *rx_ces,
unsigned char *rx_lcids,
unsigned short *rx_lengths,
unsigned short tb_length)
{
unsigned char not_done=1,num_ces=0,num_sdus=0,lcid,num_sdu_cnt;
unsigned char *mac_header_ptr = mac_header;
unsigned short length, ce_len=0;
while (not_done==1) {
if (((SCH_SUBHEADER_FIXED*)mac_header_ptr)->E == 0) {
not_done = 0;
}
lcid = ((SCH_SUBHEADER_FIXED *)mac_header_ptr)->LCID;
if (lcid < EXTENDED_POWER_HEADROOM) {
if (not_done==0) { // last MAC SDU, length is implicit
mac_header_ptr++;
length = tb_length-(mac_header_ptr-mac_header)-ce_len;
for (num_sdu_cnt=0; num_sdu_cnt < num_sdus ; num_sdu_cnt++) {
length -= rx_lengths[num_sdu_cnt];
}
} else {
if (((SCH_SUBHEADER_SHORT *)mac_header_ptr)->F == 0) {
length = ((SCH_SUBHEADER_SHORT *)mac_header_ptr)->L;
mac_header_ptr += 2;//sizeof(SCH_SUBHEADER_SHORT);
} else { // F = 1
length = ((((SCH_SUBHEADER_LONG *)mac_header_ptr)->L_MSB & 0x7f ) << 8 ) | (((SCH_SUBHEADER_LONG *)mac_header_ptr)->L_LSB & 0xff);
mac_header_ptr += 3;//sizeof(SCH_SUBHEADER_LONG);
}
}
LOG_D(MAC,"[eNB] sdu %d lcid %d tb_length %d length %d (offset now %ld)\n",
num_sdus,lcid,tb_length, length,mac_header_ptr-mac_header);
rx_lcids[num_sdus] = lcid;
rx_lengths[num_sdus] = length;
num_sdus++;
} else { // This is a control element subheader POWER_HEADROOM, BSR and CRNTI
if (lcid == SHORT_PADDING) {
mac_header_ptr++;
} else {
rx_ces[num_ces] = lcid;
num_ces++;
mac_header_ptr++;
if (lcid==LONG_BSR) {
ce_len+=3;
} else if (lcid==CRNTI) {
ce_len+=2;
} else if ((lcid==POWER_HEADROOM) || (lcid==TRUNCATED_BSR)|| (lcid== SHORT_BSR)) {
ce_len++;
} else {
LOG_E(MAC,"unknown CE %d \n", lcid);
AssertFatal(1==0,"unknown CE");
}
}
}
}
*num_ce = num_ces;
*num_sdu = num_sdus;
return(mac_header_ptr);
}
/* This function is called by PHY layer when it schedules some
* uplink for a random access message 3.
* The MAC scheduler has to skip the RBs used by this message 3
* (done below in schedule_ulsch).
*/
void set_msg3_subframe(module_id_t Mod_id,
int CC_id,
int frame,
int subframe,
int rnti,
int Msg3_frame,
int Msg3_subframe)
{
eNB_MAC_INST *eNB=RC.mac[Mod_id];
int i;
for (i=0; i<NB_RA_PROC_MAX; i++) {
if (eNB->common_channels[CC_id].RA_template[i].RA_active == TRUE &&
eNB->common_channels[CC_id].RA_template[i].rnti == rnti) {
eNB->common_channels[CC_id].RA_template[i].Msg3_subframe = Msg3_subframe;
break;
}
}
}
void schedule_ulsch(module_id_t module_idP,
frame_t frameP,
sub_frame_t subframeP)
{
uint16_t first_rb[MAX_NUM_CCs],i;
int CC_id;
eNB_MAC_INST *eNB=RC.mac[module_idP];
COMMON_channels_t *cc;
start_meas(&eNB->schedule_ulsch);
int sched_subframe = (subframeP+4)%10;
cc = &eNB->common_channels[0];
int tdd_sfa;
// for TDD: check subframes where we have to act and return if nothing should be done now
if (cc->tdd_Config) {
tdd_sfa = cc->tdd_Config->subframeAssignment;
switch (subframeP) {
case 0:
if ((tdd_sfa == 0)||
(tdd_sfa == 3)||
(tdd_sfa == 6)) sched_subframe = 4;
else return;
break;
case 1:
if ((tdd_sfa==0)||
(tdd_sfa==1)) sched_subframe = 7;
else if (tdd_sfa==6) sched_subframe = 8;
break;
default:
return;
case 2: // Don't schedule UL in subframe 2 for TDD
return;
case 3:
if (tdd_sfa==2) sched_subframe = 7;
else return;
break;
case 4:
if (tdd_sfa==1) sched_subframe = 8;
else return;
break;
case 5:
if (tdd_sfa==0) sched_subframe = 9;
else if (tdd_sfa==6) sched_subframe = 3;
else return;
break;
case 6:
if (tdd_sfa==1) sched_subframe = 2;
else if (tdd_sfa==6) sched_subframe = 3;
else return;
break;
case 7:
return;
case 8:
if ((tdd_sfa>=2) || (tdd_sfa<=5)) sched_subframe=2;
else return;
break;
case 9:
if ((tdd_sfa==1) || (tdd_sfa==3) || (tdd_sfa==4)) sched_subframe=3;
else if (tdd_sfa==6) sched_subframe=4;
else return;
break;
}
}
for (CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
//leave out first RB for PUCCH
first_rb[CC_id] = 1;
// UE data info;
// check which UE has data to transmit
// function to decide the scheduling
// e.g. scheduling_rslt = Greedy(granted_UEs, nb_RB)
// default function for default scheduling
//
// output of scheduling, the UE numbers in RBs, where it is in the code???
// check if RA (Msg3) is active in this subframeP, if so skip the PRBs used for Msg3
// Msg3 is using 1 PRB so we need to increase first_rb accordingly
// not sure about the break (can there be more than 1 active RA procedure?)
for (i=0; i<NB_RA_PROC_MAX; i++) {
if ((cc->RA_template[i].RA_active == TRUE) &&
(cc->RA_template[i].generate_rar == 0) &&
(cc->RA_template[i].generate_Msg4 == 0) &&
(cc->RA_template[i].wait_ack_Msg4 == 0) &&
(cc->RA_template[i].Msg3_subframe == sched_subframe)) {
first_rb[CC_id]++;
// cc->RA_template[i].Msg3_subframe = -1;
break;
}
}
}
schedule_ulsch_rnti(module_idP, frameP, subframeP, sched_subframe,first_rb);
stop_meas(&eNB->schedule_ulsch);
}
void schedule_ulsch_rnti(module_id_t module_idP,
frame_t frameP,
sub_frame_t subframeP,
unsigned char sched_subframeP,
uint16_t *first_rb)
{
int UE_id;
uint8_t aggregation = 2;
rnti_t rnti = -1;
uint8_t round = 0;
uint8_t harq_pid = 0;
uint8_t status = 0;
uint8_t rb_table_index = -1;
uint32_t cqi_req,cshift,ndi,tpc;
int32_t normalized_rx_power;
int32_t target_rx_power=-90;
static int32_t tpc_accumulated=0;
int n;
int CC_id = 0;
int drop_ue=0;
int N_RB_UL;
eNB_MAC_INST *eNB = RC.mac[module_idP];
COMMON_channels_t *cc = eNB->common_channels;
UE_list_t *UE_list=&eNB->UE_list;
UE_TEMPLATE *UE_template;
UE_sched_ctrl *UE_sched_ctrl;
int tmode;
int sched_frame=frameP;
int rvidx_tab[4] = {0,2,3,1};
if (sched_subframeP<subframeP) sched_frame++;
nfapi_hi_dci0_request_body_t *hi_dci0_req = &eNB->HI_DCI0_req[CC_id].hi_dci0_request_body;
nfapi_hi_dci0_request_pdu_t *hi_dci0_pdu;
nfapi_ul_config_request_pdu_t *ul_config_pdu;
nfapi_ul_config_request_body_t *ul_req_tmp = &eNB->UL_req_tmp[CC_id][sched_subframeP].ul_config_request_body;
ul_config_pdu = &ul_req_tmp->ul_config_pdu_list[0];
LOG_D(MAC,"entering ulsch preprocesor\n");
ulsch_scheduler_pre_processor(module_idP,
frameP,
subframeP,
first_rb);
LOG_D(MAC,"exiting ulsch preprocesor\n");
eNB->HI_DCI0_req[CC_id].sfn_sf = (frameP<<4)+subframeP;
// loop over all active UEs
for (UE_id=UE_list->head_ul; UE_id>=0; UE_id=UE_list->next_ul[UE_id]) {
// don't schedule if Msg4 is not received yet
if (UE_list->UE_template[UE_PCCID(module_idP,UE_id)][UE_id].configured==FALSE) {
LOG_D(MAC,"[eNB %d] frame %d subfarme %d, UE %d: not configured, skipping UE scheduling \n",
module_idP,frameP,subframeP,UE_id);
continue;
}
rnti = UE_RNTI(module_idP,UE_id);
if (rnti==NOT_A_RNTI) {
LOG_W(MAC,"[eNB %d] frame %d subfarme %d, UE %d: no RNTI \n", module_idP,frameP,subframeP,UE_id);
continue;
}
drop_ue = 0;
/* let's drop the UE if get_eNB_UE_stats returns NULL when calling it with any of the UE's active UL CCs */
/* TODO: refine?
for (n=0; n<UE_list->numactiveULCCs[UE_id]; n++) {
CC_id = UE_list->ordered_ULCCids[n][UE_id];
if (mac_xface->get_eNB_UE_stats(module_idP,CC_id,rnti) == NULL) {
LOG_W(MAC,"[eNB %d] frame %d subframe %d, UE %d/%x CC %d: no PHY context\n", module_idP,frameP,subframeP,UE_id,rnti,CC_id);
drop_ue = 1;
break;
}
}*/
if (drop_ue == 1) {
/* we can't come here, ulsch_scheduler_pre_processor won't put in the list a UE with no PHY context */
abort();
/* TODO: this is a hack. Sometimes the UE has no PHY context but
* is still present in the MAC with 'ul_failure_timer' = 0 and
* 'ul_out_of_sync' = 0. It seems wrong and the UE stays there forever. Let's
* start an UL out of sync procedure in this case.
* The root cause of this problem has to be found and corrected.
* In the meantime, this hack...
*/
if (UE_list->UE_sched_ctrl[UE_id].ul_failure_timer == 0 &&
UE_list->UE_sched_ctrl[UE_id].ul_out_of_sync == 0) {
LOG_W(MAC,"[eNB %d] frame %d subframe %d, UE %d/%x CC %d: UE in weird state, let's put it 'out of sync'\n",
module_idP,frameP,subframeP,UE_id,rnti,CC_id);
// inform RRC of failure and clear timer
mac_eNB_rrc_ul_failure(module_idP,CC_id,frameP,subframeP,rnti);
UE_list->UE_sched_ctrl[UE_id].ul_failure_timer=0;
UE_list->UE_sched_ctrl[UE_id].ul_out_of_sync=1;
}
continue;
}
// loop over all active UL CC_ids for this UE
for (n=0; n<UE_list->numactiveULCCs[UE_id]; n++) {
// This is the actual CC_id in the list
CC_id = UE_list->ordered_ULCCids[n][UE_id];
N_RB_UL = to_prb(cc[CC_id].ul_Bandwidth);
/*
aggregation=get_aggregation(get_bw_index(module_idP,CC_id),
eNB_UE_stats->dl_cqi,
format0);
*/
if (CCE_allocation_infeasible(module_idP,CC_id,1,subframeP,aggregation,rnti)) {
LOG_W(MAC,"[eNB %d] frame %d subframe %d, UE %d/%x CC %d: not enough nCCE\n", module_idP,frameP,subframeP,UE_id,rnti,CC_id);
continue; // break;
}
/* be sure that there are some free RBs */
if (first_rb[CC_id] >= N_RB_UL-1) {
LOG_W(MAC,"[eNB %d] frame %d subframe %d, UE %d/%x CC %d: dropping, not enough RBs\n",
module_idP,frameP,subframeP,UE_id,rnti,CC_id);
continue;
}
// if (eNB_UE_stats->mode == PUSCH) { // ue has a ulsch channel
UE_template = &UE_list->UE_template[CC_id][UE_id];
UE_sched_ctrl = &UE_list->UE_sched_ctrl[UE_id];
harq_pid = subframe2harqpid(&cc[CC_id],sched_frame,sched_subframeP);
round = UE_sched_ctrl->round_UL[CC_id][harq_pid];
AssertFatal(round<8,"round %d > 7 for UE %d/%x\n",round,UE_id,rnti);
LOG_D(MAC,"[eNB %d] frame %d subframe %d,Checking PUSCH %d for UE %d/%x CC %d : aggregation level %d, N_RB_UL %d\n",
module_idP,frameP,subframeP,harq_pid,UE_id,rnti,CC_id, aggregation,N_RB_UL);
RC.eNB[module_idP][CC_id]->pusch_stats_BO[UE_id][(frameP*10)+subframeP] = UE_template->ul_total_buffer;
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME(VCD_SIGNAL_DUMPER_VARIABLES_UE0_BO,RC.eNB[module_idP][CC_id]->pusch_stats_BO[UE_id][(frameP*10)+subframeP]);
if (UE_is_to_be_scheduled(module_idP,CC_id,UE_id) > 0 || round > 0)// || ((frameP%10)==0))
// if there is information on bsr of DCCH, DTCH or if there is UL_SR, or if there is a packet to retransmit, or we want to schedule a periodic feedback every 10 frames
{
LOG_D(MAC,"[eNB %d][PUSCH %d] Frame %d subframe %d Scheduling UE %d/%x in round %d(SR %d,UL_inactivity timer %d,UL_failure timer %d,cqi_req_timer %d)\n",
module_idP,harq_pid,frameP,subframeP,UE_id,rnti,round,UE_template->ul_SR,
UE_sched_ctrl->ul_inactivity_timer,
UE_sched_ctrl->ul_failure_timer,
UE_sched_ctrl->cqi_req_timer);
// reset the scheduling request
UE_template->ul_SR = 0;
status = mac_eNB_get_rrc_status(module_idP,rnti);
if (status < RRC_CONNECTED)
cqi_req = 0;
else if (UE_sched_ctrl->cqi_req_timer>30) {
cqi_req = 1;
UE_sched_ctrl->cqi_req_timer=0;
}
else
cqi_req = 0;
//power control
//compute the expected ULSCH RX power (for the stats)
// this is the normalized RX power and this should be constant (regardless of mcs
normalized_rx_power = UE_sched_ctrl->pusch_snr[CC_id];
target_rx_power = 178;
// this assumes accumulated tpc
// make sure that we are only sending a tpc update once a frame, otherwise the control loop will freak out
int32_t framex10psubframe = UE_template->pusch_tpc_tx_frame*10+UE_template->pusch_tpc_tx_subframe;
if (((framex10psubframe+10)<=(frameP*10+subframeP)) || //normal case
((framex10psubframe>(frameP*10+subframeP)) && (((10240-framex10psubframe+frameP*10+subframeP)>=10)))) //frame wrap-around
{
UE_template->pusch_tpc_tx_frame=frameP;
UE_template->pusch_tpc_tx_subframe=subframeP;
if (normalized_rx_power>(target_rx_power+4)) {
tpc = 0; //-1
tpc_accumulated--;
} else if (normalized_rx_power<(target_rx_power-4)) {
tpc = 2; //+1
tpc_accumulated++;
} else {
tpc = 1; //0
}
} else {
tpc = 1; //0
}
//tpc = 1;
if (tpc!=1) {
LOG_D(MAC,"[eNB %d] ULSCH scheduler: frame %d, subframe %d, harq_pid %d, tpc %d, accumulated %d, normalized/target rx power %d/%d\n",
module_idP,frameP,subframeP,harq_pid,tpc,
tpc_accumulated,normalized_rx_power,target_rx_power);
}
// new transmission
if (round==0) {
ndi = 1-UE_template->oldNDI_UL[harq_pid];
UE_template->oldNDI_UL[harq_pid]=ndi;
UE_list->eNB_UE_stats[CC_id][UE_id].normalized_rx_power=normalized_rx_power;
UE_list->eNB_UE_stats[CC_id][UE_id].target_rx_power=target_rx_power;
UE_list->eNB_UE_stats[CC_id][UE_id].ulsch_mcs1=UE_template->pre_assigned_mcs_ul;
UE_template->mcs_UL[harq_pid] = UE_template->pre_assigned_mcs_ul;//cmin (UE_template->pre_assigned_mcs_ul, openair_daq_vars.target_ue_ul_mcs); // adjust, based on user-defined MCS
if (UE_template->pre_allocated_rb_table_index_ul >=0) {
rb_table_index=UE_template->pre_allocated_rb_table_index_ul;
} else {
UE_template->mcs_UL[harq_pid]=10;//cmin (10, openair_daq_vars.target_ue_ul_mcs);
rb_table_index=5; // for PHR
}
UE_list->eNB_UE_stats[CC_id][UE_id].ulsch_mcs2=UE_template->mcs_UL[harq_pid];
// buffer_occupancy = UE_template->ul_total_buffer;
while (((rb_table[rb_table_index]>(N_RB_UL-1-first_rb[CC_id])) ||
(rb_table[rb_table_index]>45)) &&
(rb_table_index>0)) {
rb_table_index--;
}
UE_template->TBS_UL[harq_pid] = get_TBS_UL(UE_template->mcs_UL[harq_pid],rb_table[rb_table_index]);
UE_list->eNB_UE_stats[CC_id][UE_id].total_rbs_used_rx+=rb_table[rb_table_index];
UE_list->eNB_UE_stats[CC_id][UE_id].ulsch_TBS=UE_template->TBS_UL[harq_pid];
// buffer_occupancy -= TBS;
T(T_ENB_MAC_UE_UL_SCHEDULE, T_INT(module_idP), T_INT(CC_id), T_INT(rnti), T_INT(frameP),
T_INT(subframeP), T_INT(harq_pid), T_INT(UE_template->mcs_UL[harq_pid]), T_INT(first_rb[CC_id]), T_INT(rb_table[rb_table_index]),
T_INT(UE_template->TBS_UL[harq_pid]), T_INT(ndi));
if (mac_eNB_get_rrc_status(module_idP,rnti) < RRC_CONNECTED)
LOG_D(MAC,"[eNB %d][PUSCH %d/%x] CC_id %d Frame %d subframeP %d Scheduled UE %d (mcs %d, first rb %d, nb_rb %d, rb_table_index %d, TBS %d, harq_pid %d)\n",
module_idP,harq_pid,rnti,CC_id,frameP,subframeP,UE_id,UE_template->mcs_UL[harq_pid],
first_rb[CC_id],rb_table[rb_table_index],
rb_table_index,UE_template->TBS_UL[harq_pid],harq_pid);
// bad indices : 20 (40 PRB), 21 (45 PRB), 22 (48 PRB)
//store for possible retransmission
UE_template->nb_rb_ul[harq_pid] = rb_table[rb_table_index];
UE_template->first_rb_ul[harq_pid] = first_rb[CC_id];
UE_sched_ctrl->ul_scheduled |= (1<<harq_pid);
if (UE_id == UE_list->head)
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME(VCD_SIGNAL_DUMPER_VARIABLES_UE0_SCHEDULED,UE_sched_ctrl->ul_scheduled);
// adjust total UL buffer status by TBS, wait for UL sdus to do final update
LOG_D(MAC,"[eNB %d] CC_id %d UE %d/%x : adjusting ul_total_buffer, old %d, TBS %d\n", module_idP,CC_id,UE_id,rnti,UE_template->ul_total_buffer,UE_template->TBS_UL[harq_pid]);
if (UE_template->ul_total_buffer > UE_template->TBS_UL[harq_pid])
UE_template->ul_total_buffer -= UE_template->TBS_UL[harq_pid];
else
UE_template->ul_total_buffer = 0;
LOG_D(MAC,"ul_total_buffer, new %d\n", UE_template->ul_total_buffer);
// Cyclic shift for DM RS
cshift = 0;// values from 0 to 7 can be used for mapping the cyclic shift (36.211 , Table 5.5.2.1.1-1)
// save it for a potential retransmission
UE_template->cshift[harq_pid] = cshift;
hi_dci0_pdu = &hi_dci0_req->hi_dci0_pdu_list[eNB->HI_DCI0_req[CC_id].hi_dci0_request_body.number_of_dci+eNB->HI_DCI0_req[CC_id].hi_dci0_request_body.number_of_hi];
memset((void*)hi_dci0_pdu,0,sizeof(nfapi_hi_dci0_request_pdu_t));
hi_dci0_pdu->pdu_type = NFAPI_HI_DCI0_DCI_PDU_TYPE;
hi_dci0_pdu->pdu_size = 2+sizeof(nfapi_hi_dci0_dci_pdu);
hi_dci0_pdu->dci_pdu.dci_pdu_rel8.dci_format = NFAPI_UL_DCI_FORMAT_0;
hi_dci0_pdu->dci_pdu.dci_pdu_rel8.aggregation_level = aggregation;
hi_dci0_pdu->dci_pdu.dci_pdu_rel8.rnti = rnti;
hi_dci0_pdu->dci_pdu.dci_pdu_rel8.transmission_power = 6000;
hi_dci0_pdu->dci_pdu.dci_pdu_rel8.resource_block_start = first_rb[CC_id];
hi_dci0_pdu->dci_pdu.dci_pdu_rel8.number_of_resource_block = rb_table[rb_table_index];
hi_dci0_pdu->dci_pdu.dci_pdu_rel8.mcs_1 = UE_template->mcs_UL[harq_pid];
hi_dci0_pdu->dci_pdu.dci_pdu_rel8.cyclic_shift_2_for_drms = cshift;
hi_dci0_pdu->dci_pdu.dci_pdu_rel8.frequency_hopping_enabled_flag = 0;
hi_dci0_pdu->dci_pdu.dci_pdu_rel8.new_data_indication_1 = ndi;
hi_dci0_pdu->dci_pdu.dci_pdu_rel8.tpc = tpc;
hi_dci0_pdu->dci_pdu.dci_pdu_rel8.cqi_csi_request = cqi_req;
hi_dci0_pdu->dci_pdu.dci_pdu_rel8.dl_assignment_index = UE_template->DAI_ul[sched_subframeP];
eNB->HI_DCI0_req[CC_id].hi_dci0_request_body.number_of_dci++;
LOG_D(MAC,"[PUSCH %d] Frame %d, Subframe %d: Adding UL CONFIG.Request for UE %d/%x, ulsch_frame %d, ulsch_subframe %d\n",
harq_pid,frameP,subframeP,UE_id,rnti,sched_frame,sched_subframeP);
// Add UL_config PDUs
fill_nfapi_ulsch_config_request_rel8(&ul_req_tmp->ul_config_pdu_list[ul_req_tmp->number_of_pdus],
cqi_req,
cc,
UE_template->physicalConfigDedicated,
get_tmode(module_idP,CC_id,UE_id),
eNB->ul_handle,
rnti,
first_rb[CC_id], // resource_block_start
rb_table[rb_table_index], // number_of_resource_blocks
UE_template->mcs_UL[harq_pid],
cshift, // cyclic_shift_2_for_drms
0, // frequency_hopping_enabled_flag
0, // frequency_hopping_bits
ndi, // new_data_indication
0, // redundancy_version
harq_pid, // harq_process_number
0, // ul_tx_mode
0, // current_tx_nb
0, // n_srs
get_TBS_UL(UE_template->mcs_UL[harq_pid],
rb_table[rb_table_index])
);
#ifdef Rel14
if (UE_template->rach_resource_type>0) { // This is a BL/CE UE allocation
fill_nfapi_ulsch_config_request_emtc(&ul_req_tmp->ul_config_pdu_list[ul_req_tmp->number_of_pdus],
UE_template->rach_resource_type>2 ? 2 : 1,
1, //total_number_of_repetitions
1, //repetition_number
(frameP*10)+subframeP);
}
#endif
ul_req_tmp->number_of_pdus++;
eNB->ul_handle++;
add_ue_ulsch_info(module_idP,
CC_id,
UE_id,
subframeP,
S_UL_SCHEDULED);
LOG_D(MAC,"[eNB %d] CC_id %d Frame %d, subframeP %d: Generated ULSCH DCI for next UE_id %d, format 0\n", module_idP,CC_id,frameP,subframeP,UE_id);
// increment first rb for next UE allocation
first_rb[CC_id]+=rb_table[rb_table_index];
}
else { // round > 0 => retransmission
T(T_ENB_MAC_UE_UL_SCHEDULE_RETRANSMISSION, T_INT(module_idP), T_INT(CC_id), T_INT(rnti), T_INT(frameP),
T_INT(subframeP), T_INT(harq_pid), T_INT(UE_template->mcs_UL[harq_pid]), T_INT(first_rb[CC_id]), T_INT(rb_table[rb_table_index]),
T_INT(round));
// fill in NAK information
hi_dci0_pdu = &hi_dci0_req->hi_dci0_pdu_list[hi_dci0_req->number_of_dci+hi_dci0_req->number_of_hi];
memset((void*)hi_dci0_pdu,0,sizeof(nfapi_hi_dci0_request_pdu_t));
hi_dci0_pdu->pdu_type = NFAPI_HI_DCI0_HI_PDU_TYPE;
hi_dci0_pdu->pdu_size = 2+sizeof(nfapi_hi_dci0_hi_pdu);
hi_dci0_pdu->hi_pdu.hi_pdu_rel8.resource_block_start = UE_template->first_rb_ul[harq_pid];
hi_dci0_pdu->hi_pdu.hi_pdu_rel8.cyclic_shift_2_for_drms = UE_template->cshift[harq_pid];
hi_dci0_pdu->hi_pdu.hi_pdu_rel8.hi_value = 0;
hi_dci0_req->number_of_hi++;
LOG_D(MAC,"[eNB %d][PUSCH %d/%x] CC_id %d Frame %d subframeP %d Scheduled (PHICH) UE %d (mcs %d, first rb %d, nb_rb %d, TBS %d, round %d)\n",
module_idP,harq_pid,rnti,CC_id,frameP,subframeP,UE_id,UE_template->mcs_UL[harq_pid],
UE_template->first_rb_ul[harq_pid], UE_template->nb_rb_ul[harq_pid],
UE_template->TBS_UL[harq_pid],round);
// Add UL_config PDUs
LOG_D(MAC,"[PUSCH %d] Frame %d, Subframe %d: Adding UL CONFIG.Request for UE %d/%x, ulsch_frame %d, ulsch_subframe %d\n",
harq_pid,frameP,subframeP,UE_id,rnti,sched_frame,sched_subframeP);
fill_nfapi_ulsch_config_request_rel8(&ul_req_tmp->ul_config_pdu_list[ul_req_tmp->number_of_pdus],
cqi_req,
cc,
UE_template->physicalConfigDedicated,
get_tmode(module_idP,CC_id,UE_id),
eNB->ul_handle,
rnti,
UE_template->first_rb_ul[harq_pid], // resource_block_start
UE_template->nb_rb_ul[harq_pid], // number_of_resource_blocks
UE_template->mcs_UL[harq_pid],
cshift, // cyclic_shift_2_for_drms
0, // frequency_hopping_enabled_flag
0, // frequency_hopping_bits
UE_template->oldNDI_UL[harq_pid], // new_data_indication
rvidx_tab[round&3], // redundancy_version
harq_pid, // harq_process_number
0, // ul_tx_mode
0, // current_tx_nb
0, // n_srs
UE_template->TBS_UL[harq_pid]
);
#ifdef Rel14
if (UE_template->rach_resource_type>0) { // This is a BL/CE UE allocation
fill_nfapi_ulsch_config_request_emtc(&ul_req_tmp->ul_config_pdu_list[ul_req_tmp->number_of_pdus],
UE_template->rach_resource_type>2 ? 2 : 1,
1, //total_number_of_repetitions
1, //repetition_number
(frameP*10)+subframeP);
}
#endif
ul_req_tmp->number_of_pdus++;
eNB->ul_handle++;
}/*
else if (round > 0) { //we schedule a retransmission
ndi = UE_template->oldNDI_UL[harq_pid];
if ((round&3)==0) {
mcs = openair_daq_vars.target_ue_ul_mcs;
} else {
mcs = rvidx_tab[round&3] + 28; //not correct for round==4!
}
LOG_I(MAC,"[eNB %d][PUSCH %d/%x] CC_id %d Frame %d subframeP %d Scheduled UE retransmission (mcs %d, first rb %d, nb_rb %d, harq_pid %d, round %d)\n",
module_idP,UE_id,rnti,CC_id,frameP,subframeP,mcs,
first_rb[CC_id],UE_template->nb_rb_ul[harq_pid],
harq_pid, round);
rballoc = mac_xface->computeRIV(frame_parms->N_RB_UL,
first_rb[CC_id],
UE_template->nb_rb_ul[harq_pid]);
first_rb[CC_id]+=UE_template->nb_rb_ul[harq_pid]; // increment for next UE allocation
UE_list->eNB_UE_stats[CC_id][UE_id].num_retransmission_rx+=1;
UE_list->eNB_UE_stats[CC_id][UE_id].rbs_used_retx_rx=UE_template->nb_rb_ul[harq_pid];
UE_list->eNB_UE_stats[CC_id][UE_id].total_rbs_used_rx+=UE_template->nb_rb_ul[harq_pid];
UE_list->eNB_UE_stats[CC_id][UE_id].ulsch_mcs1=mcs;
UE_list->eNB_UE_stats[CC_id][UE_id].ulsch_mcs2=mcs;
}
*/
} // UE_is_to_be_scheduled
} // loop over UE_id
} // loop of CC_id
}
Reference in New Issue View Git Blame Copy Permalink