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Commit 03231dd1 authored by Cedric Roux's avatar Cedric Roux
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hotfix: fix pucch_procedures 

Something went wrong somewhere in the commit history, the function
was not correct.

The most obvious symptom was that way too much SR (scheduling requests)
were given to the UE whenever it had some PUCCH to send.

The case for TDD has not been tested.
parent af2ad068
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openair1/SCHED/phy_procedures_lte_eNb.c
View file @ 03231dd1
...@@ -2016,11 +2016,11 @@ void prach_procedures(PHY_VARS_eNB *eNB) { ...@@ -2016,11 +2016,11 @@ void prach_procedures(PHY_VARS_eNB *eNB) {
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_ENB_PRACH_RX,0); VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_ENB_PRACH_RX,0);
} }
void pucch_procedures(PHY_VARS_eNB *eNB,eNB_rxtx_proc_t *proc,int UE_id,int harq_pid) { void pucch_procedures(PHY_VARS_eNB *eNB,eNB_rxtx_proc_t *proc,int UE_id,int harq_pid)
{
LTE_DL_FRAME_PARMS *fp=&eNB->frame_parms; LTE_DL_FRAME_PARMS *fp=&eNB->frame_parms;
uint8_t SR_payload = 0,*pucch_payload=NULL,pucch_payload0[2]= {0,0},pucch_payload1[2]= {0,0}; uint8_t SR_payload = 0,*pucch_payload=NULL,pucch_payload0[2]= {0,0},pucch_payload1[2]= {0,0};
int16_t n1_pucch0,n1_pucch1,n1_pucch2,n1_pucch3; int16_t n1_pucch0 = -1, n1_pucch1 = -1, n1_pucch2 = -1, n1_pucch3 = -1;
uint8_t do_SR = 0; uint8_t do_SR = 0;
uint8_t pucch_sel = 0; uint8_t pucch_sel = 0;
int32_t metric0=0,metric1=0,metric0_SR=0; int32_t metric0=0,metric1=0,metric0_SR=0;
...@@ -2031,352 +2031,329 @@ void pucch_procedures(PHY_VARS_eNB *eNB,eNB_rxtx_proc_t *proc,int UE_id,int harq ...@@ -2031,352 +2031,329 @@ void pucch_procedures(PHY_VARS_eNB *eNB,eNB_rxtx_proc_t *proc,int UE_id,int harq
if ((eNB->dlsch[UE_id][0]) && if ((eNB->dlsch[UE_id][0]) &&
(eNB->dlsch[UE_id][0]->rnti>0) && (eNB->dlsch[UE_id][0]->rnti>0) &&
(eNB->ulsch[UE_id]->harq_processes[harq_pid]->subframe_scheduling_flag==0)) { (eNB->ulsch[UE_id]->harq_processes[harq_pid]->subframe_scheduling_flag==0)) {
// check SR availability // check SR availability
do_SR = is_SR_subframe(eNB,proc,UE_id); do_SR = is_SR_subframe(eNB,proc,UE_id);
// do_SR = 0; // do_SR = 0;
// Now ACK/NAK // Now ACK/NAK
// First check subframe_tx flag for earlier subframes // First check subframe_tx flag for earlier subframes
get_n1_pucch_eNB(eNB, get_n1_pucch_eNB(eNB,
proc, proc,
UE_id, UE_id,
&n1_pucch0, &n1_pucch0,
&n1_pucch1, &n1_pucch1,
&n1_pucch2, &n1_pucch2,
&n1_pucch3); &n1_pucch3);
LOG_D(PHY,"[eNB %d][PDSCH %x] Frame %d, subframe %d Checking for PUCCH (%d,%d,%d,%d) SR %d\n", LOG_D(PHY,"[eNB %d][PDSCH %x] Frame %d, subframe %d Checking for PUCCH (%d,%d,%d,%d) SR %d\n",
eNB->Mod_id,eNB->dlsch[UE_id][0]->rnti, eNB->Mod_id,eNB->dlsch[UE_id][0]->rnti,
frame,subframe, frame,subframe,
n1_pucch0,n1_pucch1,n1_pucch2,n1_pucch3,do_SR); n1_pucch0,n1_pucch1,n1_pucch2,n1_pucch3,do_SR);
if ((n1_pucch0==-1) && (n1_pucch1==-1) && (do_SR==0)) { // no TX PDSCH that have to be checked and no SR for this UE_id if ((n1_pucch0==-1) && (n1_pucch1==-1) && (do_SR==0)) { // no TX PDSCH that have to be checked and no SR for this UE_id
} else { } else {
// otherwise we have some PUCCH detection to do // otherwise we have some PUCCH detection to do
// Null out PUCCH PRBs for noise measurement // Null out PUCCH PRBs for noise measurement
switch(fp->N_RB_UL) { switch(fp->N_RB_UL) {
case 6: case 6:
eNB->rb_mask_ul[0] |= (0x1 | (1<<5)); //position 5 eNB->rb_mask_ul[0] |= (0x1 | (1<<5)); //position 5
break; break;
case 15: case 15:
eNB->rb_mask_ul[0] |= (0x1 | (1<<14)); // position 14 eNB->rb_mask_ul[0] |= (0x1 | (1<<14)); // position 14
break; break;
case 25: case 25:
eNB->rb_mask_ul[0] |= (0x1 | (1<<24)); // position 24 eNB->rb_mask_ul[0] |= (0x1 | (1<<24)); // position 24
break; break;
case 50: case 50:
eNB->rb_mask_ul[0] |= 0x1; eNB->rb_mask_ul[0] |= 0x1;
eNB->rb_mask_ul[1] |= (1<<17); // position 49 (49-32) eNB->rb_mask_ul[1] |= (1<<17); // position 49 (49-32)
break; break;
case 75: case 75:
eNB->rb_mask_ul[0] |= 0x1; eNB->rb_mask_ul[0] |= 0x1;
eNB->rb_mask_ul[2] |= (1<<10); // position 74 (74-64) eNB->rb_mask_ul[2] |= (1<<10); // position 74 (74-64)
break; break;
case 100: case 100:
eNB->rb_mask_ul[0] |= 0x1; eNB->rb_mask_ul[0] |= 0x1;
eNB->rb_mask_ul[3] |= (1<<3); // position 99 (99-96) eNB->rb_mask_ul[3] |= (1<<3); // position 99 (99-96)
break; break;
default: default:
LOG_E(PHY,"Unknown number for N_RB_UL %d\n",fp->N_RB_UL); LOG_E(PHY,"Unknown number for N_RB_UL %d\n",fp->N_RB_UL);
break; break;
} }
if (do_SR == 1) { if (do_SR == 1) {
eNB->UE_stats[UE_id].sr_total++; eNB->UE_stats[UE_id].sr_total++;
if (eNB->abstraction_flag == 0) if (eNB->abstraction_flag == 0) {
metric0_SR = rx_pucch(eNB, metric0_SR = rx_pucch(eNB,
pucch_format1, pucch_format1,
UE_id, UE_id,
eNB->scheduling_request_config[UE_id].sr_PUCCH_ResourceIndex, eNB->scheduling_request_config[UE_id].sr_PUCCH_ResourceIndex,
0, // n2_pucch 0, // n2_pucch
0, // shortened format, should be use_srs flag, later 0, // shortened format, should be use_srs flag, later
&SR_payload, &SR_payload,
frame, frame,
subframe, subframe,
PUCCH1_THRES); PUCCH1_THRES);
LOG_D(PHY,"[eNB %d][SR %x] Frame %d subframe %d Checking SR is %d (SR n1pucch is %d)\n",
eNB->Mod_id,
eNB->ulsch[UE_id]->rnti,
frame,
subframe,
SR_payload,
eNB->scheduling_request_config[UE_id].sr_PUCCH_ResourceIndex);
}
#ifdef PHY_ABSTRACTION #ifdef PHY_ABSTRACTION
else { else {
metric0_SR = rx_pucch_emul(eNB, metric0_SR = rx_pucch_emul(eNB,
proc, proc,
UE_id, UE_id,
pucch_format1, pucch_format1,
0, 0,
&SR_payload); &SR_payload);
LOG_D(PHY,"[eNB %d][SR %x] Frame %d subframe %d Checking SR (UE SR %d/%d)\n",eNB->Mod_id, LOG_D(PHY,"[eNB %d][SR %x] Frame %d subframe %d Checking SR (UE SR %d/%d)\n",eNB->Mod_id,
eNB->ulsch[UE_id]->rnti,frame,subframe,SR_payload,eNB->scheduling_request_config[UE_id].sr_PUCCH_ResourceIndex); eNB->ulsch[UE_id]->rnti,frame,subframe,SR_payload,eNB->scheduling_request_config[UE_id].sr_PUCCH_ResourceIndex);
} }
#endif #endif
if (SR_payload == 1) {
LOG_D(PHY,"[eNB %d][SR %x] Frame %d subframe %d Got SR for PUSCH, transmitting to MAC\n",eNB->Mod_id,
eNB->ulsch[UE_id]->rnti,frame,subframe);
eNB->UE_stats[UE_id].sr_received++;
if (eNB->first_sr[UE_id] == 1) { // this is the first request for uplink after Connection Setup, so clear HARQ process 0 use for Msg4
eNB->first_sr[UE_id] = 0;
eNB->dlsch[UE_id][0]->harq_processes[0]->round=0;
eNB->dlsch[UE_id][0]->harq_processes[0]->status=SCH_IDLE;
LOG_D(PHY,"[eNB %d][SR %x] Frame %d subframe %d First SR\n",
eNB->Mod_id,
eNB->ulsch[UE_id]->rnti,frame,subframe);
}
if (eNB->mac_enabled==1) {
mac_xface->SR_indication(eNB->Mod_id,
eNB->CC_id,
frame,
eNB->dlsch[UE_id][0]->rnti,subframe);
}
}
}// do_SR==1 }// do_SR==1
if ((n1_pucch0==-1) && (n1_pucch1==-1)) { // just check for SR if ((n1_pucch0==-1) && (n1_pucch1==-1)) { // just check for SR
} else if (eNB->frame_parms.frame_type==FDD) { // FDD } else if (fp->frame_type==FDD) { // FDD
// if SR was detected, use the n1_pucch from SR, else use n1_pucch0 // if SR was detected, use the n1_pucch from SR, else use n1_pucch0
// n1_pucch0 = (SR_payload==1) ? eNB->scheduling_request_config[UE_id].sr_PUCCH_ResourceIndex:n1_pucch0; // n1_pucch0 = (SR_payload==1) ? eNB->scheduling_request_config[UE_id].sr_PUCCH_ResourceIndex:n1_pucch0;
LOG_D(PHY,"Demodulating PUCCH for ACK/NAK: n1_pucch0 %d (%d), SR_payload %d\n",n1_pucch0,eNB->scheduling_request_config[UE_id].sr_PUCCH_ResourceIndex,SR_payload); LOG_D(PHY,"Demodulating PUCCH for ACK/NAK: n1_pucch0 %d (%d), SR_payload %d\n",n1_pucch0,eNB->scheduling_request_config[UE_id].sr_PUCCH_ResourceIndex,SR_payload);
if (eNB->abstraction_flag == 0) { if (eNB->abstraction_flag == 0) {
metric0 = rx_pucch(eNB,
pucch_format1a,
UE_id,
metric0 = rx_pucch(eNB, (uint16_t)n1_pucch0,
pucch_format1a, 0, //n2_pucch
UE_id, 0, // shortened format
(uint16_t)n1_pucch0, pucch_payload0,
0, //n2_pucch frame,
0, // shortened format subframe,
pucch_payload0, PUCCH1a_THRES);
frame, }
subframe,
PUCCH1a_THRES);
if (metric0 < metric0_SR)
metric0=rx_pucch(eNB,
pucch_format1a,
UE_id,
eNB->scheduling_request_config[UE_id].sr_PUCCH_ResourceIndex,
0, //n2_pucch
0, // shortened format
pucch_payload0,
frame,
subframe,
PUCCH1a_THRES);
}
if (eNB->mac_enabled==1) {
mac_xface->SR_indication(eNB->Mod_id,
eNB->CC_id,
frame,
eNB->dlsch[UE_id][0]->rnti,subframe);
}
}
}// do_SR==1
if ((n1_pucch0==-1) && (n1_pucch1==-1)) { // just check for SR
} else if (fp->frame_type==FDD) { // FDD
// if SR was detected, use the n1_pucch from SR, else use n1_pucch0
// n1_pucch0 = (SR_payload==1) ? eNB->scheduling_request_config[UE_id].sr_PUCCH_ResourceIndex:n1_pucch0;
LOG_D(PHY,"Demodulating PUCCH for ACK/NAK: n1_pucch0 %d (%d), SR_payload %d\n",n1_pucch0,eNB->scheduling_request_config[UE_id].sr_PUCCH_ResourceIndex,SR_payload);
if (eNB->abstraction_flag == 0) {
metric0 = rx_pucch(eNB,
pucch_format1a,
UE_id,
(uint16_t)n1_pucch0,
0, //n2_pucch
0, // shortened format
pucch_payload0,
frame,
subframe,
PUCCH1a_THRES);
if (metric0 < metric0_SR)
metric0=rx_pucch(eNB,
pucch_format1a,
UE_id,
eNB->scheduling_request_config[UE_id].sr_PUCCH_ResourceIndex,
0, //n2_pucch
0, // shortened format
pucch_payload0,
frame,
subframe,
PUCCH1a_THRES);
}
else {
#ifdef PHY_ABSTRACTION #ifdef PHY_ABSTRACTION
metric0 = rx_pucch_emul(eNB, else {
proc, metric0 = rx_pucch_emul(eNB,
UE_id, proc,
pucch_format1a, UE_id,
0, pucch_format1a,
pucch_payload0); 0,
pucch_payload0);
}
#endif #endif
}
/* cancel SR detection if reception on n1_pucch0 is better than on SR PUCCH resource index */
if (do_SR && metric0 > metric0_SR) SR_payload = 0;
if (do_SR && metric0 <= metric0_SR) {
/* when transmitting ACK/NACK on SR PUCCH resource index, SR payload is always 1 */
SR_payload = 1;
if (eNB->abstraction_flag == 0) {
metric0=rx_pucch(eNB,
pucch_format1a,
UE_id,
eNB->scheduling_request_config[UE_id].sr_PUCCH_ResourceIndex,
0, //n2_pucch
0, // shortened format
pucch_payload0,
frame,
subframe,
PUCCH1a_THRES);
}
#ifdef PHY_ABSTRACTION
else {
metric0 = rx_pucch_emul(eNB,
proc,
UE_id,
pucch_format1a,
0,
pucch_payload0);
}
#endif
}
#ifdef DEBUG_PHY_PROC #ifdef DEBUG_PHY_PROC
LOG_D(PHY,"[eNB %d][PDSCH %x] Frame %d subframe %d pucch1a (FDD) payload %d (metric %d)\n", LOG_D(PHY,"[eNB %d][PDSCH %x] Frame %d subframe %d pucch1a (FDD) payload %d (metric %d)\n",
eNB->Mod_id, eNB->Mod_id,
eNB->dlsch[UE_id][0]->rnti, eNB->dlsch[UE_id][0]->rnti,
frame,subframe, frame,subframe,
pucch_payload0[0],metric0); pucch_payload0[0],metric0);
#endif #endif
process_HARQ_feedback(UE_id,eNB,proc,
0,// pusch_flag
pucch_payload0,
2,
SR_payload);
} // FDD process_HARQ_feedback(UE_id,eNB,proc,
else { //TDD 0,// pusch_flag
pucch_payload0,
2,
SR_payload);
} // FDD
else { //TDD
bundling_flag = eNB->pucch_config_dedicated[UE_id].tdd_AckNackFeedbackMode; bundling_flag = eNB->pucch_config_dedicated[UE_id].tdd_AckNackFeedbackMode;
// fix later for 2 TB case and format1b // fix later for 2 TB case and format1b
if ((fp->frame_type==FDD) || if ((fp->frame_type==FDD) ||
(bundling_flag==bundling) || (bundling_flag==bundling) ||
((fp->frame_type==TDD)&&(fp->tdd_config==1)&&((subframe!=2)||(subframe!=7)))) { ((fp->frame_type==TDD)&&(fp->tdd_config==1)&&((subframe!=2)||(subframe!=7)))) {
format = pucch_format1a; format = pucch_format1a;
} else { } else {
format = pucch_format1b; format = pucch_format1b;
} }
// if SR was detected, use the n1_pucch from SR // if SR was detected, use the n1_pucch from SR
if (SR_payload==1) { if (SR_payload==1) {
#ifdef DEBUG_PHY_PROC #ifdef DEBUG_PHY_PROC
LOG_D(PHY,"[eNB %d][PDSCH %x] Frame %d subframe %d Checking ACK/NAK (%d,%d,%d,%d) format %d with SR\n",eNB->Mod_id, LOG_D(PHY,"[eNB %d][PDSCH %x] Frame %d subframe %d Checking ACK/NAK (%d,%d,%d,%d) format %d with SR\n",eNB->Mod_id,
eNB->dlsch[UE_id][0]->rnti, eNB->dlsch[UE_id][0]->rnti,
frame,subframe, frame,subframe,
n1_pucch0,n1_pucch1,n1_pucch2,n1_pucch3,format); n1_pucch0,n1_pucch1,n1_pucch2,n1_pucch3,format);
#endif #endif
if (eNB->abstraction_flag == 0) if (eNB->abstraction_flag == 0)
metric0_SR = rx_pucch(eNB, metric0 = rx_pucch(eNB,
format, format,
UE_id, UE_id,
eNB->scheduling_request_config[UE_id].sr_PUCCH_ResourceIndex, eNB->scheduling_request_config[UE_id].sr_PUCCH_ResourceIndex,
0, //n2_pucch 0, //n2_pucch
0, // shortened format 0, // shortened format
pucch_payload0, pucch_payload0,
frame, frame,
subframe, subframe,
PUCCH1a_THRES); PUCCH1a_THRES);
else { else {
#ifdef PHY_ABSTRACTION #ifdef PHY_ABSTRACTION
metric0 = rx_pucch_emul(eNB,proc, metric0 = rx_pucch_emul(eNB,proc,
UE_id, UE_id,
format, format,
0, 0,
pucch_payload0); pucch_payload0);
#endif #endif
} }
} else { //using n1_pucch0/n1_pucch1 resources } else { //using n1_pucch0/n1_pucch1 resources
#ifdef DEBUG_PHY_PROC #ifdef DEBUG_PHY_PROC
LOG_D(PHY,"[eNB %d][PDSCH %x] Frame %d subframe %d Checking ACK/NAK (%d,%d,%d,%d) format %d\n",eNB->Mod_id, LOG_D(PHY,"[eNB %d][PDSCH %x] Frame %d subframe %d Checking ACK/NAK (%d,%d,%d,%d) format %d\n",eNB->Mod_id,
eNB->dlsch[UE_id][0]->rnti, eNB->dlsch[UE_id][0]->rnti,
frame,subframe, frame,subframe,
n1_pucch0,n1_pucch1,n1_pucch2,n1_pucch3,format); n1_pucch0,n1_pucch1,n1_pucch2,n1_pucch3,format);
#endif #endif
metric0=0; metric0=0;
metric1=0; metric1=0;
// Check n1_pucch0 metric // Check n1_pucch0 metric
if (n1_pucch0 != -1) { if (n1_pucch0 != -1) {
if (eNB->abstraction_flag == 0) if (eNB->abstraction_flag == 0)
metric0 = rx_pucch(eNB, metric0 = rx_pucch(eNB,
format, format,
UE_id, UE_id,
(uint16_t)n1_pucch0, (uint16_t)n1_pucch0,
0, // n2_pucch 0, // n2_pucch
0, // shortened format 0, // shortened format
pucch_payload0, pucch_payload0,
frame, frame,
subframe, subframe,
PUCCH1a_THRES); PUCCH1a_THRES);
else { else {
#ifdef PHY_ABSTRACTION #ifdef PHY_ABSTRACTION
metric0 = rx_pucch_emul(eNB, metric0 = rx_pucch_emul(eNB,
proc, proc,
UE_id, UE_id,
format, format,
0, 0,
pucch_payload0); pucch_payload0);
#endif #endif
} }
} }
// Check n1_pucch1 metric // Check n1_pucch1 metric
if (n1_pucch1 != -1) { if (n1_pucch1 != -1) {
if (eNB->abstraction_flag == 0) if (eNB->abstraction_flag == 0)
metric1 = rx_pucch(eNB, metric1 = rx_pucch(eNB,
format, format,
UE_id, UE_id,
(uint16_t)n1_pucch1, (uint16_t)n1_pucch1,
0, //n2_pucch 0, //n2_pucch
0, // shortened format 0, // shortened format
pucch_payload1, pucch_payload1,
frame, frame,
subframe, subframe,
PUCCH1a_THRES); PUCCH1a_THRES);
else { else {
#ifdef PHY_ABSTRACTION #ifdef PHY_ABSTRACTION
metric1 = rx_pucch_emul(eNB, metric1 = rx_pucch_emul(eNB,
proc, proc,
UE_id, UE_id,
format, format,
1, 1,
pucch_payload1); pucch_payload1);
#endif #endif
} }
} }
} }
if (SR_payload == 1) { if (SR_payload == 1) {
pucch_payload = pucch_payload0; pucch_payload = pucch_payload0;
if (bundling_flag == bundling) if (bundling_flag == bundling)
pucch_sel = 2; pucch_sel = 2;
} else if (bundling_flag == multiplexing) { // multiplexing + no SR } else if (bundling_flag == multiplexing) { // multiplexing + no SR
pucch_payload = (metric1>metric0) ? pucch_payload1 : pucch_payload0; pucch_payload = (metric1>metric0) ? pucch_payload1 : pucch_payload0;
pucch_sel = (metric1>metric0) ? 1 : 0; pucch_sel = (metric1>metric0) ? 1 : 0;
} else { // bundling + no SR } else { // bundling + no SR
if (n1_pucch1 != -1) if (n1_pucch1 != -1)
pucch_payload = pucch_payload1; pucch_payload = pucch_payload1;
else if (n1_pucch0 != -1) else if (n1_pucch0 != -1)
pucch_payload = pucch_payload0; pucch_payload = pucch_payload0;
pucch_sel = 2; // indicate that this is a bundled ACK/NAK pucch_sel = 2; // indicate that this is a bundled ACK/NAK
} }
#ifdef DEBUG_PHY_PROC #ifdef DEBUG_PHY_PROC
LOG_D(PHY,"[eNB %d][PDSCH %x] Frame %d subframe %d ACK/NAK metric 0 %d, metric 1 %d, sel %d, (%d,%d)\n",eNB->Mod_id, LOG_D(PHY,"[eNB %d][PDSCH %x] Frame %d subframe %d ACK/NAK metric 0 %d, metric 1 %d, sel %d, (%d,%d)\n",eNB->Mod_id,
eNB->dlsch[UE_id][0]->rnti, eNB->dlsch[UE_id][0]->rnti,
frame,subframe, frame,subframe,
metric0,metric1,pucch_sel,pucch_payload[0],pucch_payload[1]); metric0,metric1,pucch_sel,pucch_payload[0],pucch_payload[1]);
#endif #endif
process_HARQ_feedback(UE_id,eNB,proc, process_HARQ_feedback(UE_id,eNB,proc,
0,// pusch_flag 0,// pusch_flag
pucch_payload, pucch_payload,
pucch_sel, pucch_sel,
SR_payload); SR_payload);
} // TDD
} }
}
if (SR_payload == 1) {
LOG_D(PHY,"[eNB %d][SR %x] Frame %d subframe %d Got SR for PUSCH, transmitting to MAC\n",eNB->Mod_id,
eNB->ulsch[UE_id]->rnti,frame,subframe);
eNB->UE_stats[UE_id].sr_received++;
if (eNB->first_sr[UE_id] == 1) { // this is the first request for uplink after Connection Setup, so clear HARQ process 0 use for Msg4
eNB->first_sr[UE_id] = 0;
eNB->dlsch[UE_id][0]->harq_processes[0]->round=0;
eNB->dlsch[UE_id][0]->harq_processes[0]->status=SCH_IDLE;
LOG_D(PHY,"[eNB %d][SR %x] Frame %d subframe %d First SR\n",
eNB->Mod_id,
eNB->ulsch[UE_id]->rnti,frame,subframe);
}
if (eNB->mac_enabled==1) {
mac_xface->SR_indication(eNB->Mod_id,
eNB->CC_id,
frame,
eNB->dlsch[UE_id][0]->rnti,subframe);
}
}
}
} }
......
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