maki/openairinterface5g
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

fix message 1 frame number calculation on NR UE

Browse Source 
UE initiates the RA procedure with sending message 1 via PRACH 150 frames after synchronizing with the gNB.
As the frame numbers wrap at 1024, we have to calculate the frame number for message 1 using modulo calculation.
This commit is contained in:
Thomas Schlichter
2020-10-22 10:25:48 +02:00
parent 1ef9a7ceb6
commit 7c5677fd1f
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files
openair1/SCHED_NR_UE/phy_procedures_nr_ue.c
+1 -1
View File
@@ -2077,7 +2077,7 @@ void nr_ue_prach_procedures(PHY_VARS_NR_UE *ue, UE_nr_rxtx_proc_t *proc, uint8_t
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_PROCEDURES_UE_TX_PRACH, VCD_FUNCTION_IN); VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_PROCEDURES_UE_TX_PRACH, VCD_FUNCTION_IN);
if (!prach_resources->init_msg1 && (frame_tx > ue->prach_resources[gNB_id]->sync_frame + 150)){ if (!prach_resources->init_msg1 && (frame_tx == (ue->prach_resources[gNB_id]->sync_frame + 150) % MAX_FRAME_NUMBER)){
ue->prach_cnt = 0; ue->prach_cnt = 0;
prach_resources->init_msg1 = 1; prach_resources->init_msg1 = 1;
} }