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Commit 99301f43 authored by Robert Schmidt's avatar Robert Schmidt
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Call schedule_ue_spec() once for each CC

parent 81fb7628
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Showing with 953 additions and 964 deletions
openair2/LAYER2/MAC/eNB_scheduler_dlsch.c
View file @ 99301f43
......@@ -420,17 +420,8 @@ set_ul_DAI(int module_idP,
//------------------------------------------------------------------------------
void
schedule_dlsch(module_id_t module_idP, frame_t frameP, sub_frame_t subframeP, int *mbsfn_flag) {
int i = 0;
slice_info_t *sli = &RC.mac[module_idP]->slice_info;
memset(sli->rballoc_sub, 0, sizeof(sli->rballoc_sub));
for (i = 0; i < sli->n_dl; i++) {
// Run each enabled slice-specific schedulers one by one
sli->dl[i].sched_cb(module_idP,
i,
frameP,
subframeP,
mbsfn_flag/*, dl_info*/);
for (int CC_id = 0; CC_id < RC.nb_mac_CC[module_idP]; CC_id++) {
schedule_ue_spec(module_idP, CC_id, frameP, subframeP, mbsfn_flag);
}
}
......@@ -454,13 +445,12 @@ void getRepetition(UE_TEMPLATE *pue_template,unsigned int *maxRep, unsigned int
*/
void
schedule_ue_spec(module_id_t module_idP,
int slice_idxP,
int CC_id,
frame_t frameP,
sub_frame_t subframeP,
int *mbsfn_flag)
//------------------------------------------------------------------------------
{
int CC_id;
int UE_id;
int aggregation;
mac_rlc_status_resp_t rlc_status;
......@@ -478,7 +468,6 @@ schedule_ue_spec(module_id_t module_idP,
uint8_t ra_ii;
eNB_UE_STATS *eNB_UE_stats = NULL;
UE_TEMPLATE *ue_template = NULL;
eNB_STATS *eNB_stats = NULL;
RRC_release_ctrl_t *release_ctrl = NULL;
DLSCH_PDU *dlsch_pdu = NULL;
RA_t *ra = NULL;
......@@ -491,11 +480,11 @@ schedule_ue_spec(module_id_t module_idP,
int tpc = 1;
UE_sched_ctrl_t *ue_sched_ctrl;
int mcs;
int i;
int min_rb_unit[NFAPI_CC_MAX];
int N_RB_DL[NFAPI_CC_MAX];
int total_nb_available_rb[NFAPI_CC_MAX];
int N_RBG[NFAPI_CC_MAX];
const int min_rb_unit = get_min_rb_unit(module_idP, CC_id);
const int dl_Bandwidth = cc[CC_id].mib->message.dl_Bandwidth;
const int N_RB_DL = to_prb(dl_Bandwidth);
const int N_RBG = to_rbg(dl_Bandwidth);
int total_nb_available_rb = N_RB_DL;
nfapi_dl_config_request_body_t *dl_req;
nfapi_dl_config_request_pdu_t *dl_config_pdu;
int tdd_sfa;
......@@ -503,22 +492,19 @@ schedule_ue_spec(module_id_t module_idP,
int header_length_last;
int header_length_total;
rrc_eNB_ue_context_t *ue_contextP = NULL;
int nb_mac_CC = RC.nb_mac_CC[module_idP];
long dl_Bandwidth;
if(is_pmch_subframe(frameP,subframeP,&RC.eNB[module_idP][0]->frame_parms)){
//LOG_E(MAC,"Frame[%d] SF:%d This SF should not be allocated\n",frameP,subframeP);
return ;
}
start_meas(&eNB->schedule_dlsch);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_SCHEDULE_DLSCH,
VCD_FUNCTION_IN);
// for TDD: check that we have to act here, otherwise return
if (cc[0].tdd_Config) {
tdd_sfa = cc[0].tdd_Config->subframeAssignment;
if (cc[CC_id].tdd_Config) {
tdd_sfa = cc[CC_id].tdd_Config->subframeAssignment;
switch (subframeP) {
case 0:
......@@ -567,33 +553,25 @@ schedule_ue_spec(module_id_t module_idP,
aggregation = 2;
for (CC_id = 0, eNB_stats = &eNB->eNB_stats[0]; CC_id < nb_mac_CC; CC_id++, eNB_stats++) {
dl_Bandwidth = cc[CC_id].mib->message.dl_Bandwidth;
N_RB_DL[CC_id] = to_prb(dl_Bandwidth);
min_rb_unit[CC_id] = get_min_rb_unit(module_idP, CC_id);
// get number of PRBs less those used by common channels
total_nb_available_rb[CC_id] = N_RB_DL[CC_id];
for (i = 0; i < N_RB_DL[CC_id]; i++)
if (cc[CC_id].vrb_map[i] != 0)
total_nb_available_rb[CC_id]--;
N_RBG[CC_id] = to_rbg(dl_Bandwidth);
// store the global enb stats:
eNB_stats->num_dlactive_UEs = UE_list->num_UEs;
eNB_stats->available_prbs = total_nb_available_rb[CC_id];
eNB_stats->total_available_prbs += total_nb_available_rb[CC_id];
eNB_stats->dlsch_bytes_tx = 0;
eNB_stats->dlsch_pdus_tx = 0;
}
for (int i = 0; i < N_RB_DL; i++)
if (cc[CC_id].vrb_map[i] != 0)
total_nb_available_rb--;
// store the global enb stats:
eNB->eNB_stats[CC_id].num_dlactive_UEs = UE_list->num_UEs;
eNB->eNB_stats[CC_id].available_prbs = total_nb_available_rb;
eNB->eNB_stats[CC_id].total_available_prbs += total_nb_available_rb;
eNB->eNB_stats[CC_id].dlsch_bytes_tx = 0;
eNB->eNB_stats[CC_id].dlsch_pdus_tx = 0;
// CALLING Pre_Processor for downlink scheduling
// (Returns estimation of RBs required by each UE and the allocation on sub-band)
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_DLSCH_PREPROCESSOR,
VCD_FUNCTION_IN);
start_meas(&eNB->schedule_dlsch_preprocessor);
memset(eNB->slice_info.rballoc_sub, 0, sizeof(eNB->slice_info.rballoc_sub));
dlsch_scheduler_pre_processor(module_idP,
slice_idxP,
0, //slice_idxP,
frameP,
subframeP,
mbsfn_flag,
......@@ -610,372 +588,587 @@ schedule_ue_spec(module_id_t module_idP,
/* the interslice multiplexing re-sorts the UE_list for the slices it tries
* to multiplex, so we need to sort it for the current slice again */
sort_UEs(module_idP,
slice_idxP,
0,//slice_idxP,
frameP,
subframeP);
}
for (CC_id = 0; CC_id < nb_mac_CC; CC_id++) {
LOG_D(MAC, "doing schedule_ue_spec for CC_id %d\n",
CC_id);
dl_req = &eNB->DL_req[CC_id].dl_config_request_body;
LOG_D(MAC, "doing schedule_ue_spec for CC_id %d\n",
CC_id);
dl_req = &eNB->DL_req[CC_id].dl_config_request_body;
if (mbsfn_flag[CC_id] > 0)
continue;
//if (mbsfn_flag[CC_id] > 0)
// return;
for (UE_id = UE_list->head; UE_id >= 0; UE_id = UE_list->next[UE_id]) {
LOG_D(MAC, "doing schedule_ue_spec for CC_id %d UE %d\n",
CC_id,
UE_id);
continue_flag = 0; // reset the flag to allow allocation for the remaining UEs
rnti = UE_RNTI(module_idP, UE_id);
ue_sched_ctrl = &UE_list->UE_sched_ctrl[UE_id];
ue_template = &UE_list->UE_template[CC_id][UE_id];
if (ue_template->rach_resource_type > 0) {
continue_flag = 1;
}
for (UE_id = UE_list->head; UE_id >= 0; UE_id = UE_list->next[UE_id]) {
LOG_D(MAC, "doing schedule_ue_spec for CC_id %d UE %d\n",
CC_id,
UE_id);
continue_flag = 0; // reset the flag to allow allocation for the remaining UEs
rnti = UE_RNTI(module_idP, UE_id);
ue_sched_ctrl = &UE_list->UE_sched_ctrl[UE_id];
ue_template = &UE_list->UE_template[CC_id][UE_id];
if (&(UE_list->eNB_UE_stats[CC_id][UE_id]) == NULL) {
LOG_D(MAC, "[eNB] Cannot find eNB_UE_stats\n");
continue_flag = 1;
} else {
eNB_UE_stats = &(UE_list->eNB_UE_stats[CC_id][UE_id]);
}
if (ue_template->rach_resource_type > 0) {
continue_flag = 1;
}
if (continue_flag != 1) {
switch (get_tmode(module_idP,
CC_id,
UE_id)) {
case 1:
case 2:
case 7:
aggregation = get_aggregation(get_bw_index(module_idP,
CC_id),
ue_sched_ctrl->dl_cqi[CC_id],
format1);
break;
if (&(UE_list->eNB_UE_stats[CC_id][UE_id]) == NULL) {
LOG_D(MAC, "[eNB] Cannot find eNB_UE_stats\n");
continue_flag = 1;
} else {
eNB_UE_stats = &(UE_list->eNB_UE_stats[CC_id][UE_id]);
}
case 3:
aggregation = get_aggregation(get_bw_index(module_idP,
CC_id),
ue_sched_ctrl->dl_cqi[CC_id],
format2A);
break;
if (continue_flag != 1) {
switch (get_tmode(module_idP,
CC_id,
UE_id)) {
case 1:
case 2:
case 7:
aggregation = get_aggregation(get_bw_index(module_idP,
CC_id),
ue_sched_ctrl->dl_cqi[CC_id],
format1);
break;
default:
AssertFatal(1==0,"Unsupported transmission mode %d\n", get_tmode(module_idP, CC_id, UE_id));
aggregation = 2;
break;
}
}
case 3:
aggregation = get_aggregation(get_bw_index(module_idP,
CC_id),
ue_sched_ctrl->dl_cqi[CC_id],
format2A);
break;
/* if (continue_flag != 1 */
if (ue_sched_ctrl->pre_nb_available_rbs[CC_id] == 0 || // no RBs allocated
CCE_allocation_infeasible(module_idP,
CC_id,
1,
subframeP,
aggregation,
rnti)) {
LOG_D(MAC, "[eNB %d] Frame %d : no RB allocated for UE %d on CC_id %d: continue \n",
module_idP,
frameP,
UE_id,
CC_id);
continue_flag = 1; //to next user (there might be rbs availiable for other UEs in TM5
default:
AssertFatal(1==0,"Unsupported transmission mode %d\n", get_tmode(module_idP, CC_id, UE_id));
aggregation = 2;
break;
}
}
// If TDD
if (cc[CC_id].tdd_Config != NULL) { //TDD
set_ue_dai(subframeP,
UE_id,
CC_id,
cc[CC_id].tdd_Config->subframeAssignment,
UE_list);
// update UL DAI after DLSCH scheduling
set_ul_DAI(module_idP,
UE_id,
CC_id,
frameP,
subframeP);
}
/* if (continue_flag != 1 */
if (ue_sched_ctrl->pre_nb_available_rbs[CC_id] == 0 || // no RBs allocated
CCE_allocation_infeasible(module_idP,
CC_id,
1,
subframeP,
aggregation,
rnti)) {
LOG_D(MAC, "[eNB %d] Frame %d : no RB allocated for UE %d on CC_id %d: continue \n",
module_idP,
frameP,
UE_id,
CC_id);
continue_flag = 1; //to next user (there might be rbs availiable for other UEs in TM5
}
if (continue_flag == 1) {
add_ue_dlsch_info(module_idP,
CC_id,
UE_id,
subframeP,
S_DL_NONE,
rnti);
continue;
}
// If TDD
if (cc[CC_id].tdd_Config != NULL) { //TDD
set_ue_dai(subframeP,
UE_id,
CC_id,
cc[CC_id].tdd_Config->subframeAssignment,
UE_list);
// update UL DAI after DLSCH scheduling
set_ul_DAI(module_idP,
UE_id,
CC_id,
frameP,
subframeP);
}
nb_available_rb = ue_sched_ctrl->pre_nb_available_rbs[CC_id];
harq_pid = frame_subframe2_dl_harq_pid(cc->tdd_Config,
frameP,
subframeP);
round_DL = ue_sched_ctrl->round[CC_id][harq_pid];
eNB_UE_stats->crnti = rnti;
eNB_UE_stats->rrc_status = mac_eNB_get_rrc_status(module_idP, rnti);
eNB_UE_stats->harq_pid = harq_pid;
eNB_UE_stats->harq_round = round_DL;
if (eNB_UE_stats->rrc_status < RRC_RECONFIGURED) {
ue_sched_ctrl->uplane_inactivity_timer = 0;
}
if (continue_flag == 1) {
add_ue_dlsch_info(module_idP,
CC_id,
UE_id,
subframeP,
S_DL_NONE,
rnti);
continue;
}
if (eNB_UE_stats->rrc_status < RRC_CONNECTED) {
LOG_D(MAC, "UE %d is not in RRC_CONNECTED\n", UE_id);
continue;
}
nb_available_rb = ue_sched_ctrl->pre_nb_available_rbs[CC_id];
harq_pid = frame_subframe2_dl_harq_pid(cc->tdd_Config,
frameP,
subframeP);
round_DL = ue_sched_ctrl->round[CC_id][harq_pid];
eNB_UE_stats->crnti = rnti;
eNB_UE_stats->rrc_status = mac_eNB_get_rrc_status(module_idP, rnti);
eNB_UE_stats->harq_pid = harq_pid;
eNB_UE_stats->harq_round = round_DL;
if (eNB_UE_stats->rrc_status < RRC_RECONFIGURED) {
ue_sched_ctrl->uplane_inactivity_timer = 0;
}
header_length_total = 0;
sdu_length_total = 0;
num_sdus = 0;
if (eNB_UE_stats->rrc_status < RRC_CONNECTED) {
LOG_D(MAC, "UE %d is not in RRC_CONNECTED\n", UE_id);
continue;
}
/*
DevCheck(((eNB_UE_stats->dl_cqi < MIN_CQI_VALUE) ||
(eNB_UE_stats->dl_cqi > MAX_CQI_VALUE)),
eNB_UE_stats->dl_cqi, MIN_CQI_VALUE, MAX_CQI_VALUE);
*/
if (NFAPI_MODE != NFAPI_MONOLITHIC) {
eNB_UE_stats->dlsch_mcs1 = cqi_to_mcs[ue_sched_ctrl->dl_cqi[CC_id]];
} else { // this operation is also done in the preprocessor
eNB_UE_stats->dlsch_mcs1 = cmin(eNB_UE_stats->dlsch_mcs1,
eNB->slice_info.dl[slice_idxP].maxmcs); // cmin(eNB_UE_stats->dlsch_mcs1, openair_daq_vars.target_ue_dl_mcs);
}
header_length_total = 0;
sdu_length_total = 0;
num_sdus = 0;
/*
DevCheck(((eNB_UE_stats->dl_cqi < MIN_CQI_VALUE) ||
(eNB_UE_stats->dl_cqi > MAX_CQI_VALUE)),
eNB_UE_stats->dl_cqi, MIN_CQI_VALUE, MAX_CQI_VALUE);
*/
if (NFAPI_MODE != NFAPI_MONOLITHIC) {
eNB_UE_stats->dlsch_mcs1 = cqi_to_mcs[ue_sched_ctrl->dl_cqi[CC_id]];
} else { // this operation is also done in the preprocessor
eNB_UE_stats->dlsch_mcs1 = cmin(eNB_UE_stats->dlsch_mcs1,
eNB->slice_info.dl[0/*slice_idxP*/].maxmcs); // cmin(eNB_UE_stats->dlsch_mcs1, openair_daq_vars.target_ue_dl_mcs);
}
// Store stats
// eNB_UE_stats->dl_cqi= eNB_UE_stats->dl_cqi;
// Store stats
// eNB_UE_stats->dl_cqi= eNB_UE_stats->dl_cqi;
// Initializing the rb allocation indicator for each UE
for (j = 0; j < N_RBG[CC_id]; j++) {
ue_template->rballoc_subband[harq_pid][j] = 0;
}
// Initializing the rb allocation indicator for each UE
for (j = 0; j < N_RBG; j++) {
ue_template->rballoc_subband[harq_pid][j] = 0;
}
LOG_D(MAC, "[eNB %d] Frame %d: Scheduling UE %d on CC_id %d (rnti %x, harq_pid %d, round %d, rb %d, cqi %d, mcs %d, rrc %d)\n",
module_idP,
frameP,
UE_id,
CC_id,
rnti,
harq_pid,
round_DL,
nb_available_rb,
ue_sched_ctrl->dl_cqi[CC_id],
eNB_UE_stats->dlsch_mcs1,
eNB_UE_stats->rrc_status);
/* Process retransmission */
if (round_DL != 8) {
// get freq_allocation
nb_rb = ue_template->nb_rb[harq_pid];
TBS = get_TBS_DL(ue_template->oldmcs1[harq_pid],
nb_rb);
LOG_D(MAC, "[eNB %d] Frame %d: Scheduling UE %d on CC_id %d (rnti %x, harq_pid %d, round %d, rb %d, cqi %d, mcs %d, rrc %d)\n",
module_idP,
frameP,
UE_id,
CC_id,
rnti,
harq_pid,
round_DL,
nb_available_rb,
ue_sched_ctrl->dl_cqi[CC_id],
eNB_UE_stats->dlsch_mcs1,
eNB_UE_stats->rrc_status);
/* Process retransmission */
if (round_DL != 8) {
// get freq_allocation
nb_rb = ue_template->nb_rb[harq_pid];
TBS = get_TBS_DL(ue_template->oldmcs1[harq_pid],
nb_rb);
if (nb_rb <= nb_available_rb) {
/* CDRX */
ue_sched_ctrl->harq_rtt_timer[CC_id][harq_pid] = 1; // restart HARQ RTT timer
if (ue_sched_ctrl->cdrx_configured) {
ue_sched_ctrl->drx_retransmission_timer[harq_pid] = 0; // stop drx retransmission
/*
* Note: contrary to the spec drx_retransmission_timer[harq_pid] is reset not stop.
*/
if (harq_pid == 0) {
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME(VCD_SIGNAL_DUMPER_VARIABLES_DRX_RETRANSMISSION_HARQ0, (unsigned long) ue_sched_ctrl->drx_retransmission_timer[0]);
}
}
if (nb_rb <= nb_available_rb) {
/* CDRX */
ue_sched_ctrl->harq_rtt_timer[CC_id][harq_pid] = 1; // restart HARQ RTT timer
if (cc[CC_id].tdd_Config != NULL) {
ue_template->DAI++;
update_ul_dci(module_idP,
CC_id,
rnti,
ue_template->DAI,
subframeP);
LOG_D(MAC, "DAI update: CC_id %d subframeP %d: UE %d, DAI %d\n",
CC_id,
subframeP,
UE_id,
ue_template->DAI);
}
if (ue_sched_ctrl->cdrx_configured) {
ue_sched_ctrl->drx_retransmission_timer[harq_pid] = 0; // stop drx retransmission
if (nb_rb == ue_sched_ctrl->pre_nb_available_rbs[CC_id]) {
for (j = 0; j < N_RBG; j++) { // for indicating the rballoc for each sub-band
ue_template->rballoc_subband[harq_pid][j] = ue_sched_ctrl->rballoc_sub_UE[CC_id][j];
}
} else {
nb_rb_temp = nb_rb;
j = 0;
/*
* Note: contrary to the spec drx_retransmission_timer[harq_pid] is reset not stop.
*/
if (harq_pid == 0) {
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME(VCD_SIGNAL_DUMPER_VARIABLES_DRX_RETRANSMISSION_HARQ0, (unsigned long) ue_sched_ctrl->drx_retransmission_timer[0]);
while ((nb_rb_temp > 0) && (j < N_RBG)) {
if (ue_sched_ctrl->rballoc_sub_UE[CC_id][j] == 1) {
if (ue_template->rballoc_subband[harq_pid][j])
LOG_W(MAC, "WARN: rballoc_subband not free for retrans?\n");
ue_template->rballoc_subband[harq_pid][j] = ue_sched_ctrl->rballoc_sub_UE[CC_id][j];
nb_rb_temp -= min_rb_unit;
if ((j == N_RBG - 1) && (N_RB_DL == 25 || N_RB_DL == 50))
nb_rb_temp++;
}
}
if (cc[CC_id].tdd_Config != NULL) {
ue_template->DAI++;
update_ul_dci(module_idP,
CC_id,
rnti,
ue_template->DAI,
subframeP);
LOG_D(MAC, "DAI update: CC_id %d subframeP %d: UE %d, DAI %d\n",
CC_id,
subframeP,
UE_id,
ue_template->DAI);
j++;
}
}
if (nb_rb == ue_sched_ctrl->pre_nb_available_rbs[CC_id]) {
for (j = 0; j < N_RBG[CC_id]; j++) { // for indicating the rballoc for each sub-band
ue_template->rballoc_subband[harq_pid][j] = ue_sched_ctrl->rballoc_sub_UE[CC_id][j];
nb_available_rb -= nb_rb;
switch (get_tmode(module_idP, CC_id, UE_id)) {
case 1:
case 2:
case 7:
default:
LOG_D(MAC, "retransmission DL_REQ: rnti:%x\n",
rnti);
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_1;
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.aggregation_level =
get_aggregation(get_bw_index(module_idP,
CC_id),
ue_sched_ctrl->dl_cqi[CC_id],
format1);
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.rnti = rnti;
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.rnti_type = 1; // CRNTI: 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 = harq_pid;
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.tpc = 1; // Don't adjust power when retransmitting
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.new_data_indicator_1 = ue_template->oldNDI[harq_pid];
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.mcs_1 = ue_template->oldmcs1[harq_pid];
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.redundancy_version_1 = round_DL & 3;
// TDD
if (cc[CC_id].tdd_Config != NULL) {
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.downlink_assignment_index = (ue_template->DAI - 1) & 3;
LOG_D(MAC, "[eNB %d] Retransmission CC_id %d : harq_pid %d, round %d, dai %d, mcs %d\n",
module_idP,
CC_id,
harq_pid,
round_DL,
ue_template->DAI - 1,
ue_template->oldmcs1[harq_pid]);
} else {
LOG_D(MAC, "[eNB %d] Retransmission CC_id %d : harq_pid %d, round %d, mcs %d\n",
module_idP,
CC_id,
harq_pid,
round_DL,
ue_template->oldmcs1[harq_pid]);
}
} else {
nb_rb_temp = nb_rb;
j = 0;
while ((nb_rb_temp > 0) && (j < N_RBG[CC_id])) {
if (ue_sched_ctrl->rballoc_sub_UE[CC_id][j] == 1) {
if (ue_template->rballoc_subband[harq_pid][j])
LOG_W(MAC, "WARN: rballoc_subband not free for retrans?\n");
if (!CCE_allocation_infeasible(module_idP,
CC_id,
1,
subframeP,
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.aggregation_level,
rnti)) {
dl_req->number_dci++;
dl_req->number_pdu++;
dl_req->tl.tag = NFAPI_DL_CONFIG_REQUEST_BODY_TAG;
eNB->DL_req[CC_id].sfn_sf = frameP<<4 | subframeP;
eNB->DL_req[CC_id].header.message_id = NFAPI_DL_CONFIG_REQUEST;
fill_nfapi_dlsch_config(eNB,
dl_req,
TBS,
-1, // retransmission, no pdu_index
rnti,
0, // type 0 allocation from 7.1.6 in 36.213
0, // virtual_resource_block_assignment_flag, unused here
0, // resource_block_coding, to be filled in later
getQm(ue_template->oldmcs1[harq_pid]),
round_DL & 3, // redundancy version
1, // transport blocks
0, // transport block to codeword swap flag
cc[CC_id].p_eNB == 1 ? 0 : 1, // transmission_scheme
1, // number of layers
1, // number of subbands
// uint8_t codebook_index,
4, // UE category capacity
ue_template->physicalConfigDedicated->pdsch_ConfigDedicated->p_a,
0, // delta_power_offset for TM5
0, // ngap
0, // nprb
cc[CC_id].p_eNB == 1 ? 1 : 2, // transmission mode
0, //number of PRBs treated as one subband, not used here
0); // number of beamforming vectors, not used here
LOG_D(MAC, "Filled NFAPI configuration for DCI/DLSCH %d, retransmission round %d\n",
eNB->pdu_index[CC_id],
round_DL);
program_dlsch_acknak(module_idP,
CC_id,
UE_id,
frameP,
subframeP,
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.cce_idx);
// No TX request for retransmission (check if null request for FAPI)
} else {
LOG_W(MAC, "Frame %d, Subframe %d: Dropping DLSCH allocation for UE %d\%x, infeasible CCE allocation\n",
frameP,
subframeP,
UE_id,
rnti);
}
}
add_ue_dlsch_info(module_idP,
CC_id, UE_id,
subframeP,
S_DL_SCHEDULED,
rnti);
//eNB_UE_stats->dlsch_trials[round]++;
eNB_UE_stats->num_retransmission += 1;
eNB_UE_stats->rbs_used_retx = nb_rb;
eNB_UE_stats->total_rbs_used_retx += nb_rb;
eNB_UE_stats->dlsch_mcs2 = eNB_UE_stats->dlsch_mcs1;
} else {
LOG_D(MAC,
"[eNB %d] Frame %d CC_id %d : don't schedule UE %d, its retransmission takes more resources than we have\n",
module_idP,
frameP,
CC_id,
UE_id);
}
} else {
/* This is a potentially new SDU opportunity */
rlc_status.bytes_in_buffer = 0;
// Now check RLC information to compute number of required RBs
// get maximum TBS size for RLC request
TBS = get_TBS_DL(eNB_UE_stats->dlsch_mcs1,
nb_available_rb);
// add the length for all the control elements (timing adv, drx, etc) : header + payload
ue_template->rballoc_subband[harq_pid][j] = ue_sched_ctrl->rballoc_sub_UE[CC_id][j];
nb_rb_temp -= min_rb_unit[CC_id];
if (ue_sched_ctrl->ta_timer == 0) {
ta_update = ue_sched_ctrl->ta_update;
if ((j == N_RBG[CC_id] - 1) && (N_RB_DL[CC_id] == 25 || N_RB_DL[CC_id] == 50))
nb_rb_temp++;
}
/* if we send TA then set timer to not send it for a while */
if (ta_update != 31) {
ue_sched_ctrl->ta_timer = 20;
}
/* reset ta_update */
ue_sched_ctrl->ta_update = 31;
} else {
ta_update = 31;
}
ta_len = (ta_update != 31) ? 2 : 0;
// RLC data on DCCH
if (TBS - ta_len - header_length_total - sdu_length_total - 3 > 0) {
rlc_status = mac_rlc_status_ind(module_idP,
rnti,
module_idP,
frameP,
subframeP,
ENB_FLAG_YES,
MBMS_FLAG_NO,
DCCH,
TBS - ta_len - header_length_total - sdu_length_total - 3,
0,
0
);
sdu_lengths[0] = 0;
if (rlc_status.bytes_in_buffer > 0) {
LOG_D(MAC, "[eNB %d] SFN/SF %d.%d, DL-DCCH->DLSCH CC_id %d, Requesting %d bytes from RLC (RRC message)\n",
module_idP,
frameP,
subframeP,
CC_id,
TBS - ta_len - header_length_total - sdu_length_total - 3);
sdu_lengths[0] = mac_rlc_data_req(module_idP,
rnti,
module_idP,
frameP,
ENB_FLAG_YES,
MBMS_FLAG_NO,
DCCH,
TBS, //not used
(char *)&dlsch_buffer[0],
0,
0
);
j++;
if((rrc_release_info.num_UEs > 0) && (rlc_am_mui.rrc_mui_num > 0)) {
while(pthread_mutex_trylock(&rrc_release_freelist)) {
/* spin... */
}
}
nb_available_rb -= nb_rb;
uint16_t release_total = 0;
switch (get_tmode(module_idP, CC_id, UE_id)) {
case 1:
case 2:
case 7:
default:
LOG_D(MAC, "retransmission DL_REQ: rnti:%x\n",
rnti);
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_1;
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.aggregation_level =
get_aggregation(get_bw_index(module_idP,
CC_id),
ue_sched_ctrl->dl_cqi[CC_id],
format1);
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.rnti = rnti;
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.rnti_type = 1; // CRNTI: 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 = harq_pid;
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.tpc = 1; // Don't adjust power when retransmitting
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.new_data_indicator_1 = ue_template->oldNDI[harq_pid];
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.mcs_1 = ue_template->oldmcs1[harq_pid];
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.redundancy_version_1 = round_DL & 3;
// TDD
if (cc[CC_id].tdd_Config != NULL) {
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.downlink_assignment_index = (ue_template->DAI - 1) & 3;
LOG_D(MAC, "[eNB %d] Retransmission CC_id %d : harq_pid %d, round %d, dai %d, mcs %d\n",
module_idP,
CC_id,
harq_pid,
round_DL,
ue_template->DAI - 1,
ue_template->oldmcs1[harq_pid]);
for (release_num = 0, release_ctrl = &rrc_release_info.RRC_release_ctrl[0];
release_num < NUMBER_OF_UE_MAX;
release_num++, release_ctrl++) {
if(release_ctrl->flag > 0) {
release_total++;
} else {
LOG_D(MAC, "[eNB %d] Retransmission CC_id %d : harq_pid %d, round %d, mcs %d\n",
module_idP,
CC_id,
harq_pid,
round_DL,
ue_template->oldmcs1[harq_pid]);
continue;
}
if (!CCE_allocation_infeasible(module_idP,
CC_id,
1,
subframeP,
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.aggregation_level,
rnti)) {
dl_req->number_dci++;
dl_req->number_pdu++;
dl_req->tl.tag = NFAPI_DL_CONFIG_REQUEST_BODY_TAG;
eNB->DL_req[CC_id].sfn_sf = frameP<<4 | subframeP;
eNB->DL_req[CC_id].header.message_id = NFAPI_DL_CONFIG_REQUEST;
fill_nfapi_dlsch_config(eNB,
dl_req,
TBS,
-1, // retransmission, no pdu_index
rnti,
0, // type 0 allocation from 7.1.6 in 36.213
0, // virtual_resource_block_assignment_flag, unused here
0, // resource_block_coding, to be filled in later
getQm(ue_template->oldmcs1[harq_pid]),
round_DL & 3, // redundancy version
1, // transport blocks
0, // transport block to codeword swap flag
cc[CC_id].p_eNB == 1 ? 0 : 1, // transmission_scheme
1, // number of layers
1, // number of subbands
// uint8_t codebook_index,
4, // UE category capacity
ue_template->physicalConfigDedicated->pdsch_ConfigDedicated->p_a,
0, // delta_power_offset for TM5
0, // ngap
0, // nprb
cc[CC_id].p_eNB == 1 ? 1 : 2, // transmission mode
0, //number of PRBs treated as one subband, not used here
0); // number of beamforming vectors, not used here
LOG_D(MAC, "Filled NFAPI configuration for DCI/DLSCH %d, retransmission round %d\n",
eNB->pdu_index[CC_id],
round_DL);
program_dlsch_acknak(module_idP,
CC_id,
UE_id,
frameP,
subframeP,
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.cce_idx);
// No TX request for retransmission (check if null request for FAPI)
} else {
LOG_W(MAC, "Frame %d, Subframe %d: Dropping DLSCH allocation for UE %d\%x, infeasible CCE allocation\n",
frameP,
subframeP,
UE_id,
rnti);
if(release_ctrl->flag == 1) {
if(release_ctrl->rnti == rnti) {
for(uint16_t mui_num = 0; mui_num < rlc_am_mui.rrc_mui_num; mui_num++) {
if(release_ctrl->rrc_eNB_mui == rlc_am_mui.rrc_mui[mui_num]) {
release_ctrl->flag = 3;
LOG_D(MAC,"DLSCH Release send:index %d rnti %x mui %d mui_num %d flag 1->3\n",
release_num,
rnti,
rlc_am_mui.rrc_mui[mui_num],
mui_num);
break;
}
}
}
}
if(release_ctrl->flag == 2) {
if(release_ctrl->rnti == rnti) {
for (uint16_t mui_num = 0; mui_num < rlc_am_mui.rrc_mui_num; mui_num++) {
if(release_ctrl->rrc_eNB_mui == rlc_am_mui.rrc_mui[mui_num]) {
release_ctrl->flag = 4;
LOG_D(MAC, "DLSCH Release send:index %d rnti %x mui %d mui_num %d flag 2->4\n",
release_num,
rnti,
rlc_am_mui.rrc_mui[mui_num],
mui_num);
break;
}
}
}
}
if(release_total >= rrc_release_info.num_UEs)
break;
}
pthread_mutex_unlock(&rrc_release_freelist);
}
add_ue_dlsch_info(module_idP,
CC_id, UE_id,
subframeP,
S_DL_SCHEDULED,
rnti);
//eNB_UE_stats->dlsch_trials[round]++;
eNB_UE_stats->num_retransmission += 1;
eNB_UE_stats->rbs_used_retx = nb_rb;
eNB_UE_stats->total_rbs_used_retx += nb_rb;
eNB_UE_stats->dlsch_mcs2 = eNB_UE_stats->dlsch_mcs1;
} else {
LOG_D(MAC,
"[eNB %d] Frame %d CC_id %d : don't schedule UE %d, its retransmission takes more resources than we have\n",
for (ra_ii = 0, ra = &eNB->common_channels[CC_id].ra[0]; ra_ii < NB_RA_PROC_MAX; ra_ii++, ra++) {
if ((ra->rnti == rnti) && (ra->state == MSGCRNTI)) {
for (uint16_t mui_num = 0; mui_num < rlc_am_mui.rrc_mui_num; mui_num++) {
if (ra->crnti_rrc_mui == rlc_am_mui.rrc_mui[mui_num]) {
ra->crnti_harq_pid = harq_pid;
ra->state = MSGCRNTI_ACK;
break;
}
}
}
}
T(T_ENB_MAC_UE_DL_SDU,
T_INT(module_idP),
T_INT(CC_id),
T_INT(rnti),
T_INT(frameP),
T_INT(subframeP),
T_INT(harq_pid),
T_INT(DCCH),
T_INT(sdu_lengths[0]));
LOG_D(MAC, "[eNB %d][DCCH] CC_id %d Got %d bytes from RLC\n",
module_idP,
frameP,
CC_id,
UE_id);
}
} else {
/* This is a potentially new SDU opportunity */
rlc_status.bytes_in_buffer = 0;
// Now check RLC information to compute number of required RBs
// get maximum TBS size for RLC request
TBS = get_TBS_DL(eNB_UE_stats->dlsch_mcs1,
nb_available_rb);
sdu_lengths[0]);
sdu_length_total = sdu_lengths[0];
sdu_lcids[0] = DCCH;
eNB_UE_stats->lcid_sdu[0] = DCCH;
eNB_UE_stats->sdu_length_tx[DCCH] = sdu_lengths[0];
eNB_UE_stats->num_pdu_tx[DCCH] += 1;
eNB_UE_stats->num_bytes_tx[DCCH] += sdu_lengths[0];
header_length_last = 1 + 1 + (sdu_lengths[0] >= 128);
header_length_total += header_length_last;
num_sdus = 1;
#ifdef DEBUG_eNB_SCHEDULER
LOG_T(MAC, "[eNB %d][DCCH] CC_id %d Got %d bytes :",
module_idP,
CC_id,
sdu_lengths[0]);
// add the length for all the control elements (timing adv, drx, etc) : header + payload
for (j = 0; j < sdu_lengths[0]; ++j) {
LOG_T(MAC, "%x ",
dlsch_buffer[j]);
}
if (ue_sched_ctrl->ta_timer == 0) {
ta_update = ue_sched_ctrl->ta_update;
LOG_T(MAC, "\n");
#endif
}
}
/* if we send TA then set timer to not send it for a while */
if (ta_update != 31) {
ue_sched_ctrl->ta_timer = 20;
// RLC data on DCCH1
if (TBS - ta_len - header_length_total - sdu_length_total - 3 > 0) {
rlc_status = mac_rlc_status_ind(module_idP,
rnti,
module_idP,
frameP,
subframeP,
ENB_FLAG_YES,
MBMS_FLAG_NO,
DCCH + 1,
TBS - ta_len - header_length_total - sdu_length_total - 3,
0,
0
);
// DCCH SDU
sdu_lengths[num_sdus] = 0;
if (rlc_status.bytes_in_buffer > 0) {
LOG_D(MAC, "[eNB %d], Frame %d, DCCH1->DLSCH, CC_id %d, Requesting %d bytes from RLC (RRC message)\n",
module_idP, frameP, CC_id,
TBS - ta_len - header_length_total - sdu_length_total - 3);
sdu_lengths[num_sdus] += mac_rlc_data_req(module_idP,
rnti,
module_idP,
frameP,
ENB_FLAG_YES,
MBMS_FLAG_NO, DCCH + 1,
TBS, //not used
(char *) &dlsch_buffer[sdu_length_total],
0,
0
);
T(T_ENB_MAC_UE_DL_SDU,
T_INT(module_idP),
T_INT(CC_id),
T_INT(rnti),
T_INT(frameP),
T_INT(subframeP),
T_INT(harq_pid),
T_INT(DCCH + 1),
T_INT(sdu_lengths[num_sdus]));
sdu_lcids[num_sdus] = DCCH1;
sdu_length_total += sdu_lengths[num_sdus];
eNB_UE_stats->lcid_sdu[num_sdus] = DCCH1;
eNB_UE_stats->sdu_length_tx[DCCH1] = sdu_lengths[num_sdus];
eNB_UE_stats->num_pdu_tx[DCCH1] += 1;
eNB_UE_stats->num_bytes_tx[DCCH1] += sdu_lengths[num_sdus];
header_length_last = 1 + 1 + (sdu_lengths[num_sdus] >= 128);
header_length_total += header_length_last;
num_sdus++;
#ifdef DEBUG_eNB_SCHEDULER
LOG_T(MAC, "[eNB %d][DCCH1] CC_id %d Got %d bytes :",
module_idP,
CC_id,
sdu_lengths[num_sdus]);
for (j = 0; j < sdu_lengths[num_sdus]; ++j) {
LOG_T(MAC, "%x ",
dlsch_buffer[j]);
}
/* reset ta_update */
ue_sched_ctrl->ta_update = 31;
} else {
ta_update = 31;
LOG_T(MAC, "\n");
#endif
}
}
ta_len = (ta_update != 31) ? 2 : 0;
// TODO: lcid has to be sorted before the actual allocation (similar struct as ue_list).
for (lcid = NB_RB_MAX - 1; lcid >= DTCH; lcid--) {
// TODO: check if the lcid is active
LOG_D(MAC, "[eNB %d], Frame %d, DTCH%d->DLSCH, Checking RLC status (tbs %d, len %d)\n",
module_idP,
frameP,
lcid,
TBS,
TBS - ta_len - header_length_total - sdu_length_total - 3);
// RLC data on DCCH
if (TBS - ta_len - header_length_total - sdu_length_total - 3 > 0) {
rlc_status = mac_rlc_status_ind(module_idP,
rnti,
......@@ -984,660 +1177,453 @@ schedule_ue_spec(module_id_t module_idP,
subframeP,
ENB_FLAG_YES,
MBMS_FLAG_NO,
DCCH,
lcid,
TBS - ta_len - header_length_total - sdu_length_total - 3, 0, 0
);
sdu_lengths[0] = 0;
if (rlc_status.bytes_in_buffer > 0) {
LOG_D(MAC, "[eNB %d] SFN/SF %d.%d, DL-DCCH->DLSCH CC_id %d, Requesting %d bytes from RLC (RRC message)\n",
LOG_D(MAC, "[eNB %d][USER-PLANE DEFAULT DRB] Frame %d : DTCH->DLSCH, Requesting %d bytes from RLC (lcid %d total hdr len %d)\n",
module_idP,
frameP,
subframeP,
CC_id,
TBS - ta_len - header_length_total - sdu_length_total - 3);
sdu_lengths[0] = mac_rlc_data_req(module_idP,
rnti,
module_idP,
frameP,
ENB_FLAG_YES,
MBMS_FLAG_NO,
DCCH,
TBS, //not used
(char *)&dlsch_buffer[0], 0, 0
);
if((rrc_release_info.num_UEs > 0) && (rlc_am_mui.rrc_mui_num > 0)) {
while(pthread_mutex_trylock(&rrc_release_freelist)) {
/* spin... */
}
TBS - ta_len - header_length_total - sdu_length_total - 3,
lcid,
header_length_total);
sdu_lengths[num_sdus] = mac_rlc_data_req(module_idP,
rnti,
module_idP,
frameP,
ENB_FLAG_YES,
MBMS_FLAG_NO,
lcid,
TBS, //not used
(char *) &dlsch_buffer[sdu_length_total],
0,
0
);
T(T_ENB_MAC_UE_DL_SDU,
T_INT(module_idP),
T_INT(CC_id),
T_INT(rnti),
T_INT(frameP),
T_INT(subframeP),
T_INT(harq_pid),
T_INT(lcid),
T_INT(sdu_lengths[num_sdus]));
LOG_D(MAC, "[eNB %d][USER-PLANE DEFAULT DRB] Got %d bytes for DTCH %d \n",
module_idP,
sdu_lengths[num_sdus],
lcid);
sdu_lcids[num_sdus] = lcid;
sdu_length_total += sdu_lengths[num_sdus];
eNB_UE_stats->num_pdu_tx[lcid]++;
eNB_UE_stats->lcid_sdu[num_sdus] = lcid;
eNB_UE_stats->sdu_length_tx[lcid] = sdu_lengths[num_sdus];
eNB_UE_stats->num_bytes_tx[lcid] += sdu_lengths[num_sdus];
header_length_last = 1 + 1 + (sdu_lengths[num_sdus] >= 128);
header_length_total += header_length_last;
num_sdus++;
ue_sched_ctrl->uplane_inactivity_timer = 0;
// reset RRC inactivity timer after uplane activity
ue_contextP = rrc_eNB_get_ue_context(RC.rrc[module_idP], rnti);
if (ue_contextP != NULL) {
ue_contextP->ue_context.ue_rrc_inactivity_timer = 1;
} else {
LOG_E(MAC, "[eNB %d] CC_id %d Couldn't find the context associated to UE (RNTI %d) and reset RRC inactivity timer\n",
module_idP,
CC_id,
rnti);
}
} // end if (rlc_status.bytes_in_buffer > 0)
} else { // no TBS left
break; // break for (lcid = NB_RB_MAX - 1; lcid >= DTCH; lcid--)
}
}
uint16_t release_total = 0;
/* Last header does not have length field */
if (header_length_total) {
header_length_total -= header_length_last;
header_length_total++;
}
for (release_num = 0, release_ctrl = &rrc_release_info.RRC_release_ctrl[0];
release_num < NUMBER_OF_UE_MAX;
release_num++, release_ctrl++) {
if(release_ctrl->flag > 0) {
release_total++;
} else {
continue;
}
// there is at least one SDU or TA command
// if (num_sdus > 0 ){
if (ta_len + sdu_length_total + header_length_total > 0) {
// Now compute number of required RBs for total sdu length
// Assume RAH format 2
mcs = eNB_UE_stats->dlsch_mcs1;
if(release_ctrl->flag == 1) {
if(release_ctrl->rnti == rnti) {
for(uint16_t mui_num = 0; mui_num < rlc_am_mui.rrc_mui_num; mui_num++) {
if(release_ctrl->rrc_eNB_mui == rlc_am_mui.rrc_mui[mui_num]) {
release_ctrl->flag = 3;
LOG_D(MAC,"DLSCH Release send:index %d rnti %x mui %d mui_num %d flag 1->3\n",
release_num,
rnti,
rlc_am_mui.rrc_mui[mui_num],
mui_num);
break;
}
}
}
}
if (mcs == 0) {
nb_rb = 4; // don't let the TBS get too small
} else {
nb_rb = min_rb_unit;
}
if(release_ctrl->flag == 2) {
if(release_ctrl->rnti == rnti) {
for (uint16_t mui_num = 0; mui_num < rlc_am_mui.rrc_mui_num; mui_num++) {
if(release_ctrl->rrc_eNB_mui == rlc_am_mui.rrc_mui[mui_num]) {
release_ctrl->flag = 4;
LOG_D(MAC, "DLSCH Release send:index %d rnti %x mui %d mui_num %d flag 2->4\n",
release_num,
rnti,
rlc_am_mui.rrc_mui[mui_num],
mui_num);
break;
}
}
}
}
TBS = get_TBS_DL(mcs, nb_rb);
if(release_total >= rrc_release_info.num_UEs)
break;
}
while (TBS < sdu_length_total + header_length_total + ta_len) {
nb_rb += min_rb_unit; //
pthread_mutex_unlock(&rrc_release_freelist);
}
if (nb_rb > nb_available_rb) { // if we've gone beyond the maximum number of RBs
// (can happen if N_RB_DL is odd)
TBS = get_TBS_DL(eNB_UE_stats->dlsch_mcs1,
nb_available_rb);
nb_rb = nb_available_rb;
break;
}
for (ra_ii = 0, ra = &eNB->common_channels[CC_id].ra[0]; ra_ii < NB_RA_PROC_MAX; ra_ii++, ra++) {
if ((ra->rnti == rnti) && (ra->state == MSGCRNTI)) {
for (uint16_t mui_num = 0; mui_num < rlc_am_mui.rrc_mui_num; mui_num++) {
if (ra->crnti_rrc_mui == rlc_am_mui.rrc_mui[mui_num]) {
ra->crnti_harq_pid = harq_pid;
ra->state = MSGCRNTI_ACK;
break;
}
}
}
}
TBS = get_TBS_DL(eNB_UE_stats->dlsch_mcs1,
nb_rb);
}
T(T_ENB_MAC_UE_DL_SDU,
T_INT(module_idP),
T_INT(CC_id),
T_INT(rnti),
T_INT(frameP),
T_INT(subframeP),
T_INT(harq_pid),
T_INT(DCCH),
T_INT(sdu_lengths[0]));
LOG_D(MAC, "[eNB %d][DCCH] CC_id %d Got %d bytes from RLC\n",
module_idP,
CC_id,
sdu_lengths[0]);
sdu_length_total = sdu_lengths[0];
sdu_lcids[0] = DCCH;
eNB_UE_stats->lcid_sdu[0] = DCCH;
eNB_UE_stats->sdu_length_tx[DCCH] = sdu_lengths[0];
eNB_UE_stats->num_pdu_tx[DCCH] += 1;
eNB_UE_stats->num_bytes_tx[DCCH] += sdu_lengths[0];
header_length_last = 1 + 1 + (sdu_lengths[0] >= 128);
header_length_total += header_length_last;
num_sdus = 1;
#ifdef DEBUG_eNB_SCHEDULER
LOG_T(MAC, "[eNB %d][DCCH] CC_id %d Got %d bytes :",
module_idP,
CC_id,
sdu_lengths[0]);
if (nb_rb == ue_sched_ctrl->pre_nb_available_rbs[CC_id]) {
for (j = 0; j < N_RBG; ++j) { // for indicating the rballoc for each sub-band
ue_template->rballoc_subband[harq_pid][j] = ue_sched_ctrl->rballoc_sub_UE[CC_id][j];
}
} else {
nb_rb_temp = nb_rb;
j = 0;
for (j = 0; j < sdu_lengths[0]; ++j) {
LOG_T(MAC, "%x ",
dlsch_buffer[j]);
while ((nb_rb_temp > 0) && (j < N_RBG)) {
if (ue_sched_ctrl->rballoc_sub_UE[CC_id][j] == 1) {
ue_template->rballoc_subband[harq_pid][j] = ue_sched_ctrl->rballoc_sub_UE[CC_id][j];
if ((j == N_RBG - 1) && ((N_RB_DL == 25) || (N_RB_DL == 50))) {
nb_rb_temp = nb_rb_temp - min_rb_unit + 1;
} else {
nb_rb_temp = nb_rb_temp - min_rb_unit;
}
}
LOG_T(MAC, "\n");
#endif
j++;
}
}
// RLC data on DCCH1
if (TBS - ta_len - header_length_total - sdu_length_total - 3 > 0) {
rlc_status = mac_rlc_status_ind(module_idP,
rnti,
module_idP,
frameP,
subframeP,
ENB_FLAG_YES,
MBMS_FLAG_NO,
DCCH + 1,
TBS - ta_len - header_length_total - sdu_length_total - 3, 0, 0
);
// DCCH SDU
sdu_lengths[num_sdus] = 0;
if (rlc_status.bytes_in_buffer > 0) {
LOG_D(MAC, "[eNB %d], Frame %d, DCCH1->DLSCH, CC_id %d, Requesting %d bytes from RLC (RRC message)\n",
module_idP, frameP, CC_id,
TBS - ta_len - header_length_total - sdu_length_total - 3);
sdu_lengths[num_sdus] += mac_rlc_data_req(module_idP,
rnti,
module_idP,
frameP,
ENB_FLAG_YES,
MBMS_FLAG_NO, DCCH + 1,
TBS, //not used
(char *) &dlsch_buffer[sdu_length_total], 0, 0
);
T(T_ENB_MAC_UE_DL_SDU,
T_INT(module_idP),
T_INT(CC_id),
T_INT(rnti),
T_INT(frameP),
T_INT(subframeP),
T_INT(harq_pid),
T_INT(DCCH + 1),
T_INT(sdu_lengths[num_sdus]));
sdu_lcids[num_sdus] = DCCH1;
sdu_length_total += sdu_lengths[num_sdus];
eNB_UE_stats->lcid_sdu[num_sdus] = DCCH1;
eNB_UE_stats->sdu_length_tx[DCCH1] = sdu_lengths[num_sdus];
eNB_UE_stats->num_pdu_tx[DCCH1] += 1;
eNB_UE_stats->num_bytes_tx[DCCH1] += sdu_lengths[num_sdus];
header_length_last = 1 + 1 + (sdu_lengths[num_sdus] >= 128);
header_length_total += header_length_last;
num_sdus++;
#ifdef DEBUG_eNB_SCHEDULER
LOG_T(MAC, "[eNB %d][DCCH1] CC_id %d Got %d bytes :",
module_idP,
CC_id,
sdu_lengths[num_sdus]);
// decrease mcs until TBS falls below required length
while ((TBS > sdu_length_total + header_length_total + ta_len) && (mcs > 0)) {
mcs--;
TBS = get_TBS_DL(mcs,
nb_rb);
}
for (j = 0; j < sdu_lengths[num_sdus]; ++j) {
LOG_T(MAC, "%x ",
dlsch_buffer[j]);
}
// if we have decreased too much or we don't have enough RBs, increase MCS
while (TBS < sdu_length_total + header_length_total + ta_len &&
((ue_sched_ctrl->dl_pow_off[CC_id] > 0 && mcs < 28) || (ue_sched_ctrl->dl_pow_off[CC_id] == 0 && mcs <= 15))) {
mcs++;
TBS = get_TBS_DL(mcs,
nb_rb);
}
LOG_T(MAC, "\n");
LOG_D(MAC, "dlsch_mcs before and after the rate matching = (%d, %d)\n",
eNB_UE_stats->dlsch_mcs1,
mcs);
#ifdef DEBUG_eNB_SCHEDULER
LOG_D(MAC, "[eNB %d] CC_id %d Generated DLSCH header (mcs %d, TBS %d, nb_rb %d)\n",
module_idP,
CC_id,
mcs, TBS,
nb_rb);
// msg("[MAC][eNB ] Reminder of DLSCH with random data %d %d %d %d \n",
// TBS, sdu_length_total, offset, TBS-sdu_length_total-offset);
#endif
}
if (TBS - header_length_total - sdu_length_total - ta_len <= 2) {
padding = TBS - header_length_total - sdu_length_total - ta_len;
post_padding = 0;
} else {
padding = 0;
post_padding = 1;
}
// TODO: lcid has to be sorted before the actual allocation (similar struct as ue_list).
for (lcid = NB_RB_MAX - 1; lcid >= DTCH; lcid--) {
// TODO: check if the lcid is active
LOG_D(MAC, "[eNB %d], Frame %d, DTCH%d->DLSCH, Checking RLC status (tbs %d, len %d)\n",
offset = generate_dlsch_header((unsigned char *) UE_list->DLSCH_pdu[CC_id][0][UE_id].payload[0],
num_sdus, //num_sdus
sdu_lengths, //
sdu_lcids,
255, // no drx
ta_update, // timing advance
NULL, // contention res id
padding,
post_padding);
//#ifdef DEBUG_eNB_SCHEDULER
if (ta_update != 31) {
LOG_D(MAC,
"[eNB %d][DLSCH] Frame %d Generate header for UE_id %d on CC_id %d: sdu_length_total %d, num_sdus %d, sdu_lengths[0] %d, sdu_lcids[0] %d => payload offset %d,timing advance value : %d, padding %d,post_padding %d,(mcs %d, TBS %d, nb_rb %d),header_length %d\n",
module_idP,
frameP,
lcid,
UE_id,
CC_id,
sdu_length_total,
num_sdus,
sdu_lengths[0],
sdu_lcids[0],
offset,
ta_update,
padding,
post_padding,
mcs,
TBS,
TBS - ta_len - header_length_total - sdu_length_total - 3);
if (TBS - ta_len - header_length_total - sdu_length_total - 3 > 0) {
rlc_status = mac_rlc_status_ind(module_idP,
rnti,
module_idP,
frameP,
subframeP,
ENB_FLAG_YES,
MBMS_FLAG_NO,
lcid,
TBS - ta_len - header_length_total - sdu_length_total - 3, 0, 0
);
nb_rb,
header_length_total);
}
if (rlc_status.bytes_in_buffer > 0) {
LOG_D(MAC, "[eNB %d][USER-PLANE DEFAULT DRB] Frame %d : DTCH->DLSCH, Requesting %d bytes from RLC (lcid %d total hdr len %d)\n",
module_idP,
frameP,
TBS - ta_len - header_length_total - sdu_length_total - 3,
lcid,
header_length_total);
sdu_lengths[num_sdus] = mac_rlc_data_req(module_idP,
rnti,
module_idP,
frameP,
ENB_FLAG_YES,
MBMS_FLAG_NO,
lcid,
TBS, //not used
(char *) &dlsch_buffer[sdu_length_total], 0, 0
);
T(T_ENB_MAC_UE_DL_SDU,
T_INT(module_idP),
T_INT(CC_id),
T_INT(rnti),
T_INT(frameP),
T_INT(subframeP),
T_INT(harq_pid),
T_INT(lcid),
T_INT(sdu_lengths[num_sdus]));
LOG_D(MAC, "[eNB %d][USER-PLANE DEFAULT DRB] Got %d bytes for DTCH %d \n",
module_idP,
sdu_lengths[num_sdus],
lcid);
sdu_lcids[num_sdus] = lcid;
sdu_length_total += sdu_lengths[num_sdus];
eNB_UE_stats->num_pdu_tx[lcid]++;
eNB_UE_stats->lcid_sdu[num_sdus] = lcid;
eNB_UE_stats->sdu_length_tx[lcid] = sdu_lengths[num_sdus];
eNB_UE_stats->num_bytes_tx[lcid] += sdu_lengths[num_sdus];
header_length_last = 1 + 1 + (sdu_lengths[num_sdus] >= 128);
header_length_total += header_length_last;
num_sdus++;
ue_sched_ctrl->uplane_inactivity_timer = 0;
// reset RRC inactivity timer after uplane activity
ue_contextP = rrc_eNB_get_ue_context(RC.rrc[module_idP], rnti);
//#endif
#ifdef DEBUG_eNB_SCHEDULER
LOG_T(MAC, "[eNB %d] First 16 bytes of DLSCH : \n");
if (ue_contextP != NULL) {
ue_contextP->ue_context.ue_rrc_inactivity_timer = 1;
} else {
LOG_E(MAC, "[eNB %d] CC_id %d Couldn't find the context associated to UE (RNTI %d) and reset RRC inactivity timer\n",
module_idP,
CC_id,
rnti);
}
} // end if (rlc_status.bytes_in_buffer > 0)
} else { // no TBS left
break; // break for (lcid = NB_RB_MAX - 1; lcid >= DTCH; lcid--)
}
for (int i = 0; i < 16; i++) {
LOG_T(MAC, "%x.",
dlsch_buffer[i]);
}
/* Last header does not have length field */
if (header_length_total) {
header_length_total -= header_length_last;
header_length_total++;
LOG_T(MAC, "\n");
#endif
// cycle through SDUs and place in dlsch_buffer
dlsch_pdu = &UE_list->DLSCH_pdu[CC_id][0][UE_id];
memcpy(&dlsch_pdu->payload[0][offset],
dlsch_buffer,
sdu_length_total);
// memcpy(RC.mac[0].DLSCH_pdu[0][0].payload[0][offset],dcch_buffer,sdu_lengths[0]);
// fill remainder of DLSCH with 0
for (j = 0; j < (TBS - sdu_length_total - offset); j++) {
dlsch_pdu->payload[0][offset + sdu_length_total + j] = 0;
}
// there is at least one SDU or TA command
// if (num_sdus > 0 ){
if (ta_len + sdu_length_total + header_length_total > 0) {
// Now compute number of required RBs for total sdu length
// Assume RAH format 2
mcs = eNB_UE_stats->dlsch_mcs1;
if (mcs == 0) {
nb_rb = 4; // don't let the TBS get too small
} else {
nb_rb = min_rb_unit[CC_id];
}
TBS = get_TBS_DL(mcs, nb_rb);
while (TBS < sdu_length_total + header_length_total + ta_len) {
nb_rb += min_rb_unit[CC_id]; //
if (nb_rb > nb_available_rb) { // if we've gone beyond the maximum number of RBs
// (can happen if N_RB_DL is odd)
TBS = get_TBS_DL(eNB_UE_stats->dlsch_mcs1,
nb_available_rb);
nb_rb = nb_available_rb;
break;
}
TBS = get_TBS_DL(eNB_UE_stats->dlsch_mcs1,
nb_rb);
}
if (nb_rb == ue_sched_ctrl->pre_nb_available_rbs[CC_id]) {
for (j = 0; j < N_RBG[CC_id]; ++j) { // for indicating the rballoc for each sub-band
ue_template->rballoc_subband[harq_pid][j] = ue_sched_ctrl->rballoc_sub_UE[CC_id][j];
}
} else {
nb_rb_temp = nb_rb;
j = 0;
while ((nb_rb_temp > 0) && (j < N_RBG[CC_id])) {
if (ue_sched_ctrl->rballoc_sub_UE[CC_id][j] == 1) {
ue_template->rballoc_subband[harq_pid][j] = ue_sched_ctrl->rballoc_sub_UE[CC_id][j];
if ((j == N_RBG[CC_id] - 1) && ((N_RB_DL[CC_id] == 25) || (N_RB_DL[CC_id] == 50))) {
nb_rb_temp = nb_rb_temp - min_rb_unit[CC_id] + 1;
} else {
nb_rb_temp = nb_rb_temp - min_rb_unit[CC_id];
}
}
trace_pdu(DIRECTION_DOWNLINK,
(uint8_t *) dlsch_pdu->payload[0],
TBS,
module_idP,
WS_C_RNTI,
UE_RNTI(module_idP,
UE_id),
eNB->frame,
eNB->subframe,
0,
0);
T(T_ENB_MAC_UE_DL_PDU_WITH_DATA,
T_INT(module_idP),
T_INT(CC_id),
T_INT(rnti),
T_INT(frameP),
T_INT(subframeP),
T_INT(harq_pid),
T_BUFFER(dlsch_pdu->payload[0],
TBS));
ue_template->nb_rb[harq_pid] = nb_rb;
add_ue_dlsch_info(module_idP,
CC_id,
UE_id,
subframeP,
S_DL_SCHEDULED,
rnti);
// store stats
eNB->eNB_stats[CC_id].dlsch_bytes_tx += sdu_length_total;
eNB->eNB_stats[CC_id].dlsch_pdus_tx += 1;
eNB_UE_stats->rbs_used = nb_rb;
eNB_UE_stats->num_mac_sdu_tx = num_sdus;
eNB_UE_stats->total_rbs_used += nb_rb;
eNB_UE_stats->dlsch_mcs2 = mcs;
eNB_UE_stats->TBS = TBS;
eNB_UE_stats->overhead_bytes = TBS - sdu_length_total;
eNB_UE_stats->total_sdu_bytes += sdu_length_total;
eNB_UE_stats->total_pdu_bytes += TBS;
eNB_UE_stats->total_num_pdus += 1;
if (cc[CC_id].tdd_Config != NULL) { // TDD
ue_template->DAI++;
update_ul_dci(module_idP,
CC_id,
rnti,
ue_template->DAI,
subframeP);
}
j++;
// do PUCCH power control
// this is the snr
// unit is not dBm, it's special from nfapi
// converting to dBm
snr = (5 * ue_sched_ctrl->pucch1_snr[CC_id] - 640) / 10;
target_snr = eNB->puCch10xSnr / 10;
// 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->pucch_tpc_tx_frame * 10 + ue_template->pucch_tpc_tx_subframe;
if (framex10psubframe + 10 <= (frameP * 10) + subframeP || //normal case
(framex10psubframe > (frameP * 10) + subframeP && 10240 - framex10psubframe + (frameP * 10) + subframeP >= 10)) //frame wrap-around
if (ue_sched_ctrl->pucch1_cqi_update[CC_id] == 1) {
ue_sched_ctrl->pucch1_cqi_update[CC_id] = 0;
ue_template->pucch_tpc_tx_frame = frameP;
ue_template->pucch_tpc_tx_subframe = subframeP;
if (snr > target_snr + 4) {
tpc = 0; //-1
} else if (snr < target_snr - 4) {
tpc = 2; //+1
} else {
tpc = 1; //0
}
}
// decrease mcs until TBS falls below required length
while ((TBS > sdu_length_total + header_length_total + ta_len) && (mcs > 0)) {
mcs--;
TBS = get_TBS_DL(mcs,
nb_rb);
}
// if we have decreased too much or we don't have enough RBs, increase MCS
while (TBS < sdu_length_total + header_length_total + ta_len &&
((ue_sched_ctrl->dl_pow_off[CC_id] > 0 && mcs < 28) || (ue_sched_ctrl->dl_pow_off[CC_id] == 0 && mcs <= 15))) {
mcs++;
TBS = get_TBS_DL(mcs,
nb_rb);
}
LOG_D(MAC, "[eNB %d] DLSCH scheduler: frame %d, subframe %d, harq_pid %d, tpc %d, snr/target snr %d/%d (normal case)\n",
module_idP,
frameP,
subframeP,
harq_pid,
tpc,
snr,
target_snr);
} // Po_PUCCH has been updated
else {
tpc = 1; //0
} // time to do TPC update
else {
tpc = 1; //0
}
LOG_D(MAC, "dlsch_mcs before and after the rate matching = (%d, %d)\n",
eNB_UE_stats->dlsch_mcs1,
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.dci_format = NFAPI_DL_DCI_FORMAT_1;
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.aggregation_level =
get_aggregation(get_bw_index(module_idP,
CC_id),
ue_sched_ctrl->dl_cqi[CC_id],
format1);
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.rnti = rnti;
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.rnti_type = 1; // CRNTI : 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 = harq_pid;
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.tpc = tpc; // dont adjust power when retransmitting
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.new_data_indicator_1 = 1 - ue_template->oldNDI[harq_pid];
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;
//deactivate second codeword
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.mcs_2 = 0;
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.redundancy_version_2 = 1;
if (cc[CC_id].tdd_Config != NULL) { //TDD
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.downlink_assignment_index = (ue_template->DAI - 1) & 3;
LOG_D(MAC, "[eNB %d] Initial transmission CC_id %d : harq_pid %d, dai %d, mcs %d\n",
module_idP,
CC_id,
harq_pid,
(ue_template->DAI - 1),
mcs);
#ifdef DEBUG_eNB_SCHEDULER
LOG_D(MAC, "[eNB %d] CC_id %d Generated DLSCH header (mcs %d, TBS %d, nb_rb %d)\n",
} else {
LOG_D(MAC, "[eNB %d] Initial transmission CC_id %d : harq_pid %d, mcs %d\n",
module_idP,
CC_id,
mcs, TBS,
nb_rb);
// msg("[MAC][eNB ] Reminder of DLSCH with random data %d %d %d %d \n",
// TBS, sdu_length_total, offset, TBS-sdu_length_total-offset);
#endif
if (TBS - header_length_total - sdu_length_total - ta_len <= 2) {
padding = TBS - header_length_total - sdu_length_total - ta_len;
post_padding = 0;
} else {
padding = 0;
post_padding = 1;
}
offset = generate_dlsch_header((unsigned char *) UE_list->DLSCH_pdu[CC_id][0][UE_id].payload[0],
num_sdus, //num_sdus
sdu_lengths, //
sdu_lcids,
255, // no drx
ta_update, // timing advance
NULL, // contention res id
padding,
post_padding);
//#ifdef DEBUG_eNB_SCHEDULER
if (ta_update != 31) {
LOG_D(MAC,
"[eNB %d][DLSCH] Frame %d Generate header for UE_id %d on CC_id %d: sdu_length_total %d, num_sdus %d, sdu_lengths[0] %d, sdu_lcids[0] %d => payload offset %d,timing advance value : %d, padding %d,post_padding %d,(mcs %d, TBS %d, nb_rb %d),header_length %d\n",
module_idP,
frameP,
UE_id,
CC_id,
sdu_length_total,
num_sdus,
sdu_lengths[0],
sdu_lcids[0],
offset,
ta_update,
padding,
post_padding,
mcs,
TBS,
nb_rb,
header_length_total);
}
//#endif
#ifdef DEBUG_eNB_SCHEDULER
LOG_T(MAC, "[eNB %d] First 16 bytes of DLSCH : \n");
for (i = 0; i < 16; i++) {
LOG_T(MAC, "%x.",
dlsch_buffer[i]);
}
LOG_T(MAC, "\n");
#endif
// cycle through SDUs and place in dlsch_buffer
dlsch_pdu = &UE_list->DLSCH_pdu[CC_id][0][UE_id];
memcpy(&dlsch_pdu->payload[0][offset],
dlsch_buffer,
sdu_length_total);
// memcpy(RC.mac[0].DLSCH_pdu[0][0].payload[0][offset],dcch_buffer,sdu_lengths[0]);
// fill remainder of DLSCH with 0
for (j = 0; j < (TBS - sdu_length_total - offset); j++) {
dlsch_pdu->payload[0][offset + sdu_length_total + j] = 0;
}
trace_pdu(DIRECTION_DOWNLINK,
(uint8_t *) dlsch_pdu->payload[0],
TBS,
module_idP,
WS_C_RNTI,
UE_RNTI(module_idP,
UE_id),
eNB->frame,
eNB->subframe,
0,
0);
T(T_ENB_MAC_UE_DL_PDU_WITH_DATA,
T_INT(module_idP),
T_INT(CC_id),
T_INT(rnti),
T_INT(frameP),
T_INT(subframeP),
T_INT(harq_pid),
T_BUFFER(dlsch_pdu->payload[0],
TBS));
ue_template->nb_rb[harq_pid] = nb_rb;
add_ue_dlsch_info(module_idP,
CC_id,
UE_id,
subframeP,
S_DL_SCHEDULED,
rnti);
// store stats
eNB->eNB_stats[CC_id].dlsch_bytes_tx += sdu_length_total;
eNB->eNB_stats[CC_id].dlsch_pdus_tx += 1;
eNB_UE_stats->rbs_used = nb_rb;
eNB_UE_stats->num_mac_sdu_tx = num_sdus;
eNB_UE_stats->total_rbs_used += nb_rb;
eNB_UE_stats->dlsch_mcs2 = mcs;
eNB_UE_stats->TBS = TBS;
eNB_UE_stats->overhead_bytes = TBS - sdu_length_total;
eNB_UE_stats->total_sdu_bytes += sdu_length_total;
eNB_UE_stats->total_pdu_bytes += TBS;
eNB_UE_stats->total_num_pdus += 1;
if (cc[CC_id].tdd_Config != NULL) { // TDD
ue_template->DAI++;
update_ul_dci(module_idP,
CC_id,
rnti,
ue_template->DAI,
subframeP);
}
// do PUCCH power control
// this is the snr
// unit is not dBm, it's special from nfapi
// converting to dBm
snr = (5 * ue_sched_ctrl->pucch1_snr[CC_id] - 640) / 10;
target_snr = eNB->puCch10xSnr / 10;
// 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->pucch_tpc_tx_frame * 10 + ue_template->pucch_tpc_tx_subframe;
if (framex10psubframe + 10 <= (frameP * 10) + subframeP || //normal case
(framex10psubframe > (frameP * 10) + subframeP && 10240 - framex10psubframe + (frameP * 10) + subframeP >= 10)) //frame wrap-around
if (ue_sched_ctrl->pucch1_cqi_update[CC_id] == 1) {
ue_sched_ctrl->pucch1_cqi_update[CC_id] = 0;
ue_template->pucch_tpc_tx_frame = frameP;
ue_template->pucch_tpc_tx_subframe = subframeP;
harq_pid,
mcs);
}
if (snr > target_snr + 4) {
tpc = 0; //-1
} else if (snr < target_snr - 4) {
tpc = 2; //+1
} else {
tpc = 1; //0
}
LOG_D(MAC, "Checking feasibility pdu %d (new sdu)\n",
dl_req->number_pdu);
LOG_D(MAC, "[eNB %d] DLSCH scheduler: frame %d, subframe %d, harq_pid %d, tpc %d, snr/target snr %d/%d (normal case)\n",
module_idP,
frameP,
subframeP,
harq_pid,
tpc,
snr,
target_snr);
} // Po_PUCCH has been updated
else {
tpc = 1; //0
} // time to do TPC update
else {
tpc = 1; //0
}
if (!CCE_allocation_infeasible(module_idP,
CC_id,
1,
subframeP,
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.aggregation_level,
rnti)) {
ue_sched_ctrl->round[CC_id][harq_pid] = 0;
dl_req->number_dci++;
dl_req->number_pdu++;
dl_req->tl.tag = NFAPI_DL_CONFIG_REQUEST_BODY_TAG;
eNB->DL_req[CC_id].sfn_sf = frameP << 4 | subframeP;
eNB->DL_req[CC_id].header.message_id = NFAPI_DL_CONFIG_REQUEST;
/* CDRX */
ue_sched_ctrl->harq_rtt_timer[CC_id][harq_pid] = 1; // restart HARQ RTT timer
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.dci_format = NFAPI_DL_DCI_FORMAT_1;
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.aggregation_level =
get_aggregation(get_bw_index(module_idP,
CC_id),
ue_sched_ctrl->dl_cqi[CC_id],
format1);
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.rnti = rnti;
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.rnti_type = 1; // CRNTI : 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 = harq_pid;
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.tpc = tpc; // dont adjust power when retransmitting
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.new_data_indicator_1 = 1 - ue_template->oldNDI[harq_pid];
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;
//deactivate second codeword
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.mcs_2 = 0;
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.redundancy_version_2 = 1;
if (cc[CC_id].tdd_Config != NULL) { //TDD
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.downlink_assignment_index = (ue_template->DAI - 1) & 3;
LOG_D(MAC, "[eNB %d] Initial transmission CC_id %d : harq_pid %d, dai %d, mcs %d\n",
module_idP,
CC_id,
harq_pid,
(ue_template->DAI - 1),
mcs);
} else {
LOG_D(MAC, "[eNB %d] Initial transmission CC_id %d : harq_pid %d, mcs %d\n",
module_idP,
CC_id,
harq_pid,
mcs);
}
if (ue_sched_ctrl->cdrx_configured) {
ue_sched_ctrl->drx_inactivity_timer = 1; // restart drx inactivity timer when new transmission
ue_sched_ctrl->drx_retransmission_timer[harq_pid] = 0; // stop drx retransmission
/*
* Note: contrary to the spec drx_retransmission_timer[harq_pid] is reset not stop.
*/
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME(VCD_SIGNAL_DUMPER_VARIABLES_DRX_INACTIVITY, (unsigned long) ue_sched_ctrl->drx_inactivity_timer);
LOG_D(MAC, "Checking feasibility pdu %d (new sdu)\n",
dl_req->number_pdu);
if (!CCE_allocation_infeasible(module_idP,
CC_id,
1,
subframeP,
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.aggregation_level,
rnti)) {
ue_sched_ctrl->round[CC_id][harq_pid] = 0;
dl_req->number_dci++;
dl_req->number_pdu++;
dl_req->tl.tag = NFAPI_DL_CONFIG_REQUEST_BODY_TAG;
eNB->DL_req[CC_id].sfn_sf = frameP << 4 | subframeP;
eNB->DL_req[CC_id].header.message_id = NFAPI_DL_CONFIG_REQUEST;
/* CDRX */
ue_sched_ctrl->harq_rtt_timer[CC_id][harq_pid] = 1; // restart HARQ RTT timer
if (ue_sched_ctrl->cdrx_configured) {
ue_sched_ctrl->drx_inactivity_timer = 1; // restart drx inactivity timer when new transmission
ue_sched_ctrl->drx_retransmission_timer[harq_pid] = 0; // stop drx retransmission
/*
* Note: contrary to the spec drx_retransmission_timer[harq_pid] is reset not stop.
*/
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME(VCD_SIGNAL_DUMPER_VARIABLES_DRX_INACTIVITY, (unsigned long) ue_sched_ctrl->drx_inactivity_timer);
if (harq_pid == 0) {
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME(VCD_SIGNAL_DUMPER_VARIABLES_DRX_RETRANSMISSION_HARQ0, (unsigned long) ue_sched_ctrl->drx_retransmission_timer[0]);
}
if (harq_pid == 0) {
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME(VCD_SIGNAL_DUMPER_VARIABLES_DRX_RETRANSMISSION_HARQ0, (unsigned long) ue_sched_ctrl->drx_retransmission_timer[0]);
}
// Toggle NDI for next time
LOG_D(MAC, "CC_id %d Frame %d, subframeP %d: Toggling Format1 NDI for UE %d (rnti %x/%d) oldNDI %d\n",
CC_id,
frameP,
subframeP,
UE_id,
rnti,
harq_pid,
ue_template->oldNDI[harq_pid]);
ue_template->oldNDI[harq_pid] = 1 - ue_template->oldNDI[harq_pid];
ue_template->oldmcs1[harq_pid] = mcs;
ue_template->oldmcs2[harq_pid] = 0;
AssertFatal(ue_template->physicalConfigDedicated != NULL, "physicalConfigDedicated is NULL\n");
AssertFatal(ue_template->physicalConfigDedicated->pdsch_ConfigDedicated != NULL,
"physicalConfigDedicated->pdsch_ConfigDedicated is NULL\n");
fill_nfapi_dlsch_config(eNB,
dl_req,
TBS,
eNB->pdu_index[CC_id],
rnti,
0, // type 0 allocation from 7.1.6 in 36.213
0, // virtual_resource_block_assignment_flag, unused here
0, // resource_block_coding, to be filled in later
getQm(mcs),
0, // redundancy version
1, // transport blocks
0, // transport block to codeword swap flag
cc[CC_id].p_eNB == 1 ? 0 : 1, // transmission_scheme
1, // number of layers
1, // number of subbands
// uint8_t codebook_index,
4, // UE category capacity
ue_template->physicalConfigDedicated->pdsch_ConfigDedicated->p_a,
0, // delta_power_offset for TM5
0, // ngap
0, // nprb
cc[CC_id].p_eNB == 1 ? 1 : 2, // transmission mode
0, //number of PRBs treated as one subband, not used here
0); // number of beamforming vectors, not used here
eNB->TX_req[CC_id].sfn_sf = fill_nfapi_tx_req(&eNB->TX_req[CC_id].tx_request_body,
(frameP * 10) + subframeP,
TBS,
eNB->pdu_index[CC_id],
dlsch_pdu->payload[0]);
LOG_D(MAC, "Filled NFAPI configuration for DCI/DLSCH/TXREQ %d, new SDU\n",
eNB->pdu_index[CC_id]);
eNB->pdu_index[CC_id]++;
program_dlsch_acknak(module_idP,
CC_id,
UE_id,
frameP,
subframeP,
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.cce_idx);
} else {
LOG_W(MAC, "Frame %d, Subframe %d: Dropping DLSCH allocation for UE %d/%x, infeasible CCE allocations\n",
frameP,
subframeP,
UE_id,
rnti);
}
} else { // There is no data from RLC or MAC header, so don't schedule
// Toggle NDI for next time
LOG_D(MAC, "CC_id %d Frame %d, subframeP %d: Toggling Format1 NDI for UE %d (rnti %x/%d) oldNDI %d\n",
CC_id,
frameP,
subframeP,
UE_id,
rnti,
harq_pid,
ue_template->oldNDI[harq_pid]);
ue_template->oldNDI[harq_pid] = 1 - ue_template->oldNDI[harq_pid];
ue_template->oldmcs1[harq_pid] = mcs;
ue_template->oldmcs2[harq_pid] = 0;
AssertFatal(ue_template->physicalConfigDedicated != NULL, "physicalConfigDedicated is NULL\n");
AssertFatal(ue_template->physicalConfigDedicated->pdsch_ConfigDedicated != NULL,
"physicalConfigDedicated->pdsch_ConfigDedicated is NULL\n");
fill_nfapi_dlsch_config(eNB,
dl_req,
TBS,
eNB->pdu_index[CC_id],
rnti,
0, // type 0 allocation from 7.1.6 in 36.213
0, // virtual_resource_block_assignment_flag, unused here
0, // resource_block_coding, to be filled in later
getQm(mcs),
0, // redundancy version
1, // transport blocks
0, // transport block to codeword swap flag
cc[CC_id].p_eNB == 1 ? 0 : 1, // transmission_scheme
1, // number of layers
1, // number of subbands
// uint8_t codebook_index,
4, // UE category capacity
ue_template->physicalConfigDedicated->pdsch_ConfigDedicated->p_a,
0, // delta_power_offset for TM5
0, // ngap
0, // nprb
cc[CC_id].p_eNB == 1 ? 1 : 2, // transmission mode
0, //number of PRBs treated as one subband, not used here
0); // number of beamforming vectors, not used here
eNB->TX_req[CC_id].sfn_sf = fill_nfapi_tx_req(&eNB->TX_req[CC_id].tx_request_body,
(frameP * 10) + subframeP,
TBS,
eNB->pdu_index[CC_id],
dlsch_pdu->payload[0]);
LOG_D(MAC, "Filled NFAPI configuration for DCI/DLSCH/TXREQ %d, new SDU\n",
eNB->pdu_index[CC_id]);
eNB->pdu_index[CC_id]++;
program_dlsch_acknak(module_idP,
CC_id,
UE_id,
frameP,
subframeP,
dl_config_pdu->dci_dl_pdu.dci_dl_pdu_rel8.cce_idx);
} else {
LOG_W(MAC, "Frame %d, Subframe %d: Dropping DLSCH allocation for UE %d/%x, infeasible CCE allocations\n",
frameP,
subframeP,
UE_id,
rnti);
}
} else { // There is no data from RLC or MAC header, so don't schedule
}
}
if (cc[CC_id].tdd_Config != NULL) { // TDD
set_ul_DAI(module_idP,
UE_id,
CC_id,
frameP,
subframeP);
}
} // UE_id loop
} // CC_id loop
if (cc[CC_id].tdd_Config != NULL) { // TDD
set_ul_DAI(module_idP,
UE_id,
CC_id,
frameP,
subframeP);
}
} // UE_id loop
fill_DLSCH_dci(module_idP,
frameP,
......
openair2/LAYER2/MAC/mac_proto.h
View file @ 99301f43
......@@ -156,8 +156,11 @@ void fill_DLSCH_dci(module_id_t module_idP,frame_t frameP,sub_frame_t subframe,i
void schedule_dlsch(module_id_t module_idP, frame_t frameP,
sub_frame_t subframe, int *mbsfn_flag);
void schedule_ue_spec(module_id_t module_idP, int slice_idxP,
frame_t frameP,sub_frame_t subframe, int *mbsfn_flag);
void schedule_ue_spec(module_id_t module_idP,
int CC_id,
frame_t frameP,
sub_frame_t subframe,
int *mbsfn_flag);
void schedule_ue_spec_br(module_id_t module_idP,
frame_t frameP,
sub_frame_t subframeP);
......
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