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NR_RRC_PDCP: Bring back Downlink data scheduling in every opportunity

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-Schedule IP traffic when it is available and random data when there is no IP traffic
This commit is contained in:
matzakos
2020-08-04 14:59:05 +02:00
parent d013302c42
commit 1326f6daf7
2 changed files with 45 additions and 95 deletions
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openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_phytest.c
+44 -94
View File
@@ -589,7 +589,7 @@ void configure_fapi_dl_Tx(module_id_t Mod_idP,
void nr_schedule_uss_dlsch_phytest(module_id_t module_idP, void nr_schedule_uss_dlsch_phytest(module_id_t module_idP,
frame_t frameP, frame_t frameP,
sub_frame_t slotP, sub_frame_t slotP,
int num_slots_per_tdd, NR_sched_pucch *pucch_sched,
nfapi_nr_dl_tti_pdsch_pdu_rel15_t *dlsch_config){ nfapi_nr_dl_tti_pdsch_pdu_rel15_t *dlsch_config){
LOG_D(MAC, "In nr_schedule_uss_dlsch_phytest frame %d slot %d\n",frameP,slotP); LOG_D(MAC, "In nr_schedule_uss_dlsch_phytest frame %d slot %d\n",frameP,slotP);
@@ -597,7 +597,6 @@ void nr_schedule_uss_dlsch_phytest(module_id_t module_idP,
int post_padding = 0, ta_len = 0, header_length_total = 0, sdu_length_total = 0, num_sdus = 0; int post_padding = 0, ta_len = 0, header_length_total = 0, sdu_length_total = 0, num_sdus = 0;
int lcid, offset, i, header_length_last, TBS_bytes = 0; int lcid, offset, i, header_length_last, TBS_bytes = 0;
int UE_id = 0, CC_id = 0; int UE_id = 0, CC_id = 0;
int pucch_sched;
gNB_MAC_INST *gNB_mac = RC.nrmac[module_idP]; gNB_MAC_INST *gNB_mac = RC.nrmac[module_idP];
//NR_COMMON_channels_t *cc = nr_mac->common_channels; //NR_COMMON_channels_t *cc = nr_mac->common_channels;
@@ -621,7 +620,7 @@ void nr_schedule_uss_dlsch_phytest(module_id_t module_idP,
ta_len = gNB_mac->ta_len; ta_len = gNB_mac->ta_len;
/*TBS_bytes = configure_fapi_dl_pdu(module_idP, TBS_bytes = configure_fapi_dl_pdu(module_idP,
dl_req, dl_req,
pucch_sched, pucch_sched,
dlsch_config!=NULL ? dlsch_config->mcsIndex : NULL, dlsch_config!=NULL ? dlsch_config->mcsIndex : NULL,
@@ -629,112 +628,63 @@ void nr_schedule_uss_dlsch_phytest(module_id_t module_idP,
dlsch_config!=NULL ? &dlsch_config->rbStart : NULL); dlsch_config!=NULL ? &dlsch_config->rbStart : NULL);
if (TBS_bytes == 0) if (TBS_bytes == 0)
return;*/ return;
//Corresponding to noS1 and EPC_MODE_ENABLED use cases where DLSCH transmissions are scheduled only when there is IP traffic
//at the upper layers
if (IS_SOFTMODEM_NOS1 || get_softmodem_params()->phy_test == 0){
lcid = DL_SCH_LCID_DTCH; lcid = DL_SCH_LCID_DTCH;
//for (lcid = NB_RB_MAX - 1; lcid >= DTCH; lcid--) { //for (lcid = NB_RB_MAX - 1; lcid >= DTCH; lcid--) {
// TODO: check if the lcid is active // TODO: check if the lcid is active
LOG_D(MAC, "[gNB %d], Frame %d, DTCH%d->DLSCH, Checking RLC status (TBS %d bytes, len %d)\n", LOG_D(MAC, "[gNB %d], Frame %d, DTCH%d->DLSCH, Checking RLC status (TBS %d bytes, len %d)\n",
module_idP, frameP, lcid, TBS_bytes, TBS_bytes - ta_len - header_length_total - sdu_length_total - 3); module_idP, frameP, lcid, TBS_bytes, TBS_bytes - ta_len - header_length_total - sdu_length_total - 3);
//if (TBS_bytes - ta_len - header_length_total - sdu_length_total - 3 > 0) { //if (TBS_bytes - ta_len - header_length_total - sdu_length_total - 3 > 0) {
rlc_status = mac_rlc_status_ind(module_idP, rlc_status = mac_rlc_status_ind(module_idP,
rnti, rnti,
module_idP, module_idP,
frameP, frameP,
slotP, slotP,
ENB_FLAG_YES, ENB_FLAG_YES,
MBMS_FLAG_NO, MBMS_FLAG_NO,
lcid, lcid,
0, 0,
0); 0);
if (rlc_status.bytes_in_buffer > 0) { if (rlc_status.bytes_in_buffer > 0) {
LOG_I(MAC, "configure fapi due to data availability \n"); LOG_I(MAC, "configure fapi due to data availability \n");
nr_update_pucch_scheduling(module_idP, UE_id, frameP, slotP, num_slots_per_tdd, &pucch_sched); LOG_I(MAC, "[gNB %d][USER-PLANE DEFAULT DRB] Frame %d : DTCH->DLSCH, Requesting %d bytes from RLC (lcid %d total hdr len %d), TBS_bytes: %d \n \n",
module_idP, frameP, TBS_bytes - ta_len - header_length_total - sdu_length_total - 3,
lcid, header_length_total, TBS_bytes);
TBS_bytes = configure_fapi_dl_pdu(module_idP, sdu_lengths[num_sdus] = mac_rlc_data_req(module_idP,
dl_req, rnti,
&UE_list->UE_sched_ctrl[UE_id].sched_pucch[pucch_sched], module_idP,
dlsch_config!=NULL ? dlsch_config->mcsIndex : NULL, frameP,
dlsch_config!=NULL ? &dlsch_config->rbSize : NULL, ENB_FLAG_YES,
dlsch_config!=NULL ? &dlsch_config->rbStart : NULL); MBMS_FLAG_NO,
lcid,
TBS_bytes - ta_len - header_length_total - sdu_length_total - 3,
(char *)&mac_sdus[sdu_length_total],
0,
0);
if (TBS_bytes == 0) LOG_W(MAC, "[gNB %d][USER-PLANE DEFAULT DRB] Got %d bytes for DTCH %d \n", module_idP, sdu_lengths[num_sdus], lcid);
return;
LOG_I(MAC, "[gNB %d][USER-PLANE DEFAULT DRB] Frame %d : DTCH->DLSCH, Requesting %d bytes from RLC (lcid %d total hdr len %d), TBS_bytes: %d \n \n", sdu_lcids[num_sdus] = lcid;
module_idP, frameP, TBS_bytes - ta_len - header_length_total - sdu_length_total - 3, sdu_length_total += sdu_lengths[num_sdus];
lcid, header_length_total, TBS_bytes); header_length_last = 1 + 1 + (sdu_lengths[num_sdus] >= 128);
header_length_total += header_length_last;
sdu_lengths[num_sdus] = mac_rlc_data_req(module_idP, num_sdus++;
rnti,
module_idP,
frameP,
ENB_FLAG_YES,
MBMS_FLAG_NO,
lcid,
TBS_bytes - ta_len - header_length_total - sdu_length_total - 3,
(char *)&mac_sdus[sdu_length_total],
0,
0);
LOG_W(MAC, "[gNB %d][USER-PLANE DEFAULT DRB] Got %d bytes for DTCH %d \n", module_idP, sdu_lengths[num_sdus], lcid); //ue_sched_ctl->uplane_inactivity_timer = 0;
}
sdu_lcids[num_sdus] = lcid;
sdu_length_total += sdu_lengths[num_sdus];
header_length_last = 1 + 1 + (sdu_lengths[num_sdus] >= 128);
header_length_total += header_length_last;
num_sdus++;
//ue_sched_ctl->uplane_inactivity_timer = 0;
}
else if(ta_len > 0){
LOG_I(MAC, "configure fapi due to TA \n");
nr_update_pucch_scheduling(module_idP, UE_id, frameP, slotP, num_slots_per_tdd, &pucch_sched);
TBS_bytes = configure_fapi_dl_pdu(module_idP,
dl_req,
&UE_list->UE_sched_ctrl[UE_id].sched_pucch[pucch_sched],
dlsch_config!=NULL ? dlsch_config->mcsIndex : NULL,
dlsch_config!=NULL ? &dlsch_config->rbSize : NULL,
dlsch_config!=NULL ? &dlsch_config->rbStart : NULL);
if (TBS_bytes == 0)
return;
}
/*} else { // no TBS_bytes left
break;
}*/
//} for (lcid = NB_RB_MAX - 1; lcid >= DTCH; lcid--) {
} //if (IS_SOFTMODEM_NOS1 || get_softmodem_params()->phy_test)
else { else {
nr_update_pucch_scheduling(module_idP, UE_id, frameP, slotP, num_slots_per_tdd, &pucch_sched);
TBS_bytes = configure_fapi_dl_pdu(module_idP,
dl_req,
&UE_list->UE_sched_ctrl[UE_id].sched_pucch[pucch_sched],
dlsch_config!=NULL ? dlsch_config->mcsIndex : NULL,
dlsch_config!=NULL ? &dlsch_config->rbSize : NULL,
dlsch_config!=NULL ? &dlsch_config->rbStart : NULL);
if (TBS_bytes == 0)
return;
//When the --NOS1 option is not enabled, DLSCH transmissions with random data
//occur every time that the current function is called (dlsch phytest mode)
LOG_D(MAC,"Configuring DL_TX in %d.%d\n", frameP, slotP); LOG_D(MAC,"Configuring DL_TX in %d.%d\n", frameP, slotP);
// fill dlsch_buffer with random data // fill dlsch_buffer with random data
@@ -759,7 +709,7 @@ void nr_schedule_uss_dlsch_phytest(module_id_t module_idP,
} }
#endif #endif
} // else IS_SOFTMODEM_NOS1 }
// there is at least one SDU or TA command // there is at least one SDU or TA command
// if (num_sdus > 0 ){ // if (num_sdus > 0 ){
openair2/LAYER2/NR_MAC_gNB/mac_proto.h
+1 -1
View File
@@ -151,7 +151,7 @@ void configure_fapi_dl_Tx(module_id_t Mod_idP,
void nr_schedule_uss_dlsch_phytest(module_id_t module_idP, void nr_schedule_uss_dlsch_phytest(module_id_t module_idP,
frame_t frameP, frame_t frameP,
sub_frame_t slotP, sub_frame_t slotP,
int num_slots_per_tdd, NR_sched_pucch *pucch_sched,
nfapi_nr_dl_tti_pdsch_pdu_rel15_t *pdsch_config); nfapi_nr_dl_tti_pdsch_pdu_rel15_t *pdsch_config);
void nr_schedule_pusch(int Mod_idP, void nr_schedule_pusch(int Mod_idP,