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Add some comments on the code and update documentation

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luis_pereira87
2021-12-08 12:21:20 +00:00
parent e0944aa24b
commit 158c309cbc
2 changed files with 9 additions and 3 deletions
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doc/FEATURE_SET.md
+4 -2
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@@ -307,8 +307,10 @@ The following features are valid for the gNB and the 5G-NR UE.
- MAC <-> PHY data interface using FAPI P7 interface for BCH PDU, DCI PDU, PDSCH PDU - MAC <-> PHY data interface using FAPI P7 interface for BCH PDU, DCI PDU, PDSCH PDU
- Scheduler procedures for SIB1 - Scheduler procedures for SIB1
- Scheduler procedures for RA - Scheduler procedures for RA
- Contention free RA procedure - Contention Free RA procedure
- Contention based RA procedure - Contention Based RA procedure
- Msg3 can transfer uplink CCCH, DTCH or DCCH messages
- CBRA can be performed using MAC CE or C-RNTI
- Scheduler procedures for CSI-RS - Scheduler procedures for CSI-RS
- MAC downlink scheduler - MAC downlink scheduler
- phy-test scheduler (fixed allocation and usable also without UE) - phy-test scheduler (fixed allocation and usable also without UE)
openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_ulsch.c
+5 -1
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@@ -824,13 +824,17 @@ void nr_rx_sdu(const module_id_t gnb_mod_idP,
ra->Msg4_slot = 1; ra->Msg4_slot = 1;
if (ra->msg3_dcch_dtch) { if (ra->msg3_dcch_dtch) {
// Check if the C-RNTI still exists in the network // Check if the UE identified by C-RNTI still exists at the gNB
int UE_id_C = find_nr_UE_id(gnb_mod_idP, ra->crnti); int UE_id_C = find_nr_UE_id(gnb_mod_idP, ra->crnti);
if (UE_id_C < 0) { if (UE_id_C < 0) {
// The UE identified by C-RNTI no longer exists at the gNB
// Let's abort the current RA, so the UE will trigger a new RA later but using RRCSetupRequest instead. A better solution may be implemented
mac_remove_nr_ue(gnb_mod_idP, ra->rnti); mac_remove_nr_ue(gnb_mod_idP, ra->rnti);
nr_clear_ra_proc(gnb_mod_idP, CC_idP, frameP, ra); nr_clear_ra_proc(gnb_mod_idP, CC_idP, frameP, ra);
return; return;
} else { } else {
// The UE identified by C-RNTI still exists at the gNB
// Reset uplink failure flags/counters/timers at MAC and at RRC so gNB will resume again scheduling resources for this UE
UE_info->UE_sched_ctrl[UE_id_C].pusch_consecutive_dtx_cnt = 0; UE_info->UE_sched_ctrl[UE_id_C].pusch_consecutive_dtx_cnt = 0;
UE_info->UE_sched_ctrl[UE_id_C].ul_failure = 0; UE_info->UE_sched_ctrl[UE_id_C].ul_failure = 0;
nr_mac_gNB_rrc_ul_failure_reset(gnb_mod_idP, frameP, slotP, ra->crnti); nr_mac_gNB_rrc_ul_failure_reset(gnb_mod_idP, frameP, slotP, ra->crnti);