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bugfix: test free RBs and CCE allocation feasible only for new transmissions

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This commit is contained in:
Cedric Roux
2019-03-30 15:18:18 +01:00
parent 04c24ff698
commit 9565544e3f
1 changed files with 116 additions and 118 deletions
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openair2/LAYER2/MAC/eNB_scheduler_ulsch.c
+116 -118
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@@ -1415,34 +1415,6 @@ schedule_ulsch_rnti(module_id_t module_idP,
/* This is the actual CC_id in the list */
CC_id = UE_list->ordered_ULCCids[n][UE_id];
/* Be sure that there are some free RBs */
if (first_rb_slice[CC_id] >= n_rb_ul_tab[CC_id] - 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;
}
/* Should format_flag be 2 in CCE_allocation_infeasible??? */
/* This test seems to be way too long, can we provide an optimization? */
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 CCE\n",
module_idP,
frameP,
subframeP,
UE_id,
rnti,
CC_id);
continue;
}
/* UE is active and can be scheduled, setting up struct */
UE_template_ptr = &(UE_list->UE_template[CC_id][UE_id]);
UE_sched_ctrl_ptr = &(UE_list->UE_sched_ctrl[UE_id]);
harq_pid = subframe2harqpid(&cc[CC_id], sched_frame, sched_subframeP);
@@ -1474,7 +1446,6 @@ schedule_ulsch_rnti(module_id_t module_idP,
* 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
*/
/* Shouldn't this test be done earlier?? */
if (UE_is_to_be_scheduled(module_idP, CC_id, UE_id) > 0 || round_index > 0) {
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,
@@ -1492,98 +1463,125 @@ schedule_ulsch_rnti(module_id_t module_idP,
// reset the scheduling request
UE_template_ptr->ul_SR = 0;
status = mac_eNB_get_rrc_status(module_idP, rnti);
cqi_req = 0;
/* Handle the aperiodic CQI report */
/* These aperiodic reports behave as periodic ones... */
if (status >= RRC_CONNECTED && UE_sched_ctrl_ptr->cqi_req_timer > 30) {
if (UE_sched_ctrl_ptr->cqi_received == 0) {
if (nfapi_mode) {
cqi_req = 0;
} else {
cqi_req = 1;
/* TDD: to be safe, do not ask CQI in special Subframes:36.213/7.2.3 CQI definition */
if (cc[CC_id].tdd_Config) {
switch (cc[CC_id].tdd_Config->subframeAssignment) {
case 1:
if(subframeP == 1 || subframeP == 6) {
cqi_req=0;
}
break;
case 3:
if(subframeP == 1) {
cqi_req=0;
}
break;
default:
LOG_E(MAC," TDD config not supported\n");
break;
}
}
if(cqi_req == 1) {
UE_sched_ctrl_ptr->cqi_req_flag |= 1 << sched_subframeP;
}
}
} else {
UE_sched_ctrl_ptr->cqi_req_flag = 0;
UE_sched_ctrl_ptr->cqi_received = 0;
UE_sched_ctrl_ptr->cqi_req_timer = 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)
* Is not in dBm, unit from nfapi, converting to dBm
* ToDo: Noise power hard coded to 30
*/
normalized_rx_power = ((5 * UE_sched_ctrl_ptr->pusch_snr[CC_id] - 640) / 10) + 30;
target_rx_power = (mac->puSch10xSnr / 10) + 30;
/*
* This assumes accumulated tpc
* Make sure that we are only sending a tpc update once a frame, otherwise the control loop will freak out
*/
framex10psubframe = (UE_template_ptr->pusch_tpc_tx_frame * 10) + UE_template_ptr->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_ptr->pusch_tpc_tx_frame = frameP;
UE_template_ptr->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
}
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_index == 0) {
/* Be sure that there are some free RBs */
if (first_rb_slice[CC_id] >= n_rb_ul_tab[CC_id] - 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;
}
/* Should format_flag be 2 in CCE_allocation_infeasible??? */
/* This test seems to be way too long, can we provide an optimization? */
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 CCE\n",
module_idP,
frameP,
subframeP,
UE_id,
rnti,
CC_id);
continue;
}
/* Handle the aperiodic CQI report */
cqi_req = 0;
if (status >= RRC_CONNECTED && UE_sched_ctrl_ptr->cqi_req_timer > 30) {
if (UE_sched_ctrl_ptr->cqi_received == 0) {
if (nfapi_mode) {
cqi_req = 0;
} else {
cqi_req = 1;
/* TDD: to be safe, do not ask CQI in special Subframes:36.213/7.2.3 CQI definition */
if (cc[CC_id].tdd_Config) {
switch (cc[CC_id].tdd_Config->subframeAssignment) {
case 1:
if(subframeP == 1 || subframeP == 6) {
cqi_req=0;
}
break;
case 3:
if(subframeP == 1) {
cqi_req=0;
}
break;
default:
LOG_E(MAC," TDD config not supported\n");
break;
}
}
if(cqi_req == 1) {
UE_sched_ctrl_ptr->cqi_req_flag |= 1 << sched_subframeP;
}
}
} else {
UE_sched_ctrl_ptr->cqi_req_flag = 0;
UE_sched_ctrl_ptr->cqi_received = 0;
UE_sched_ctrl_ptr->cqi_req_timer = 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)
* Is not in dBm, unit from nfapi, converting to dBm
* ToDo: Noise power hard coded to 30
*/
normalized_rx_power = ((5 * UE_sched_ctrl_ptr->pusch_snr[CC_id] - 640) / 10) + 30;
target_rx_power = (mac->puSch10xSnr / 10) + 30;
/*
* This assumes accumulated tpc
* Make sure that we are only sending a tpc update once a frame, otherwise the control loop will freak out
*/
framex10psubframe = (UE_template_ptr->pusch_tpc_tx_frame * 10) + UE_template_ptr->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_ptr->pusch_tpc_tx_frame = frameP;
UE_template_ptr->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
}
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);
}
ndi = 1 - UE_template_ptr->oldNDI_UL[harq_pid]; // NDI: new data indicator
UE_template_ptr->oldNDI_UL[harq_pid] = ndi;
UE_list->eNB_UE_stats[CC_id][UE_id].normalized_rx_power = normalized_rx_power;