OpenAirInterface configuration


#62

and it tutorial also : OAI and LimeSDR-Mini


#63

I’ve followed step by step the tutorial of Bastien on https://bastienbaranoff.wordpress.com/2018/10/23/openairinterface-4g-lte-with-limesdr_mini/ . But I got always those output :


When i stopped the program lte-softmodem, i have this prompt :

OS : Ubuntu 16.04.4
LimeSDR mini rev 1.1
LimeSuite version : v18.10.0-g3cbdb8bb
SoapySDR version : v0.7.0-g6d21756e


#64

is it possible to send log with txt ! mine run correctly


#65

Thanks for the reply @dast , I have solved the problem after I discovered a little mistake in my MME config file. I think now it runs correctly :

But after some moments I got this debug message after the “L” : " [PHY][I]rx_rf: rfdevice timing drift of 2720 samples (ts_off 26720)"

Xforms scope :

You can find my ltesoftmodem log file in this link :


#66

Hi ,

We have eNB compiling and running on LMSSDR, however we still have issues achieving and maintaining attach complete with UE.

Below were the error appeared in eNB…

[MAC][I][eNB_dlsch_ulsch_scheduler] UE rnti 5452 : in synch, PHR 40 dB
[RRC][I]UE rnti 5452 failure timer 0/20000 [PHY][I]UE 0 : rnti 5452
[MAC][I][eNB_dlsch_ulsch_scheduler] UE rnti 5452 : in synch, PHR 40 dB [RRC][I]UE rnti 5452 failure timer 0/20000
[PHY][W][eNB 0, CC 0] frame 310, subframe 2, UE 0: ULSCH consecutive error count reached 20, triggering UL Failure
[MAC][I][UL_failure_indication] [eNB 0][UE 0/5452] Frame 310 subframeP 2 Signaling UL Failure for UE 0 on CC_id 0 (timer 0)
[PHY][E]ERROR: Format 1A: rb_alloc (1ff) > RIV_max (144) [PHY][E]ERROR: Format 1A: rb_alloc (1ff) > RIV_max (144)
[PHY][E]ERROR: Format 1A: rb_alloc (1ff) > RIV_max (144) [PHY][E]ERROR: Format 1A: rb_alloc (1ff) > RIV_max (144)
[PHY][E]ERROR: Format 1A: rb_alloc (1ff) > RIV_max (144)
[MAC][I][eNB_dlsch_ulsch_scheduler] UE 0 rnti 5452: UL Failure after repeated PDCCH orders: Triggering RRC [RRC][I]Frame 330, Subframe 1: UE 5452 UL failure, activating timer MAC: remove UE 0 rnti 5452
[MAC][I][rrc_mac_remove_ue] Removing UE 0 from Primary CC_id 0 (rnti 5452)
[RRC][I]UE rnti 5452 failure timer 6940/20000
[RRC][I]UE rnti 5452 failure timer 17180/20000
[RRC][I]Removing UE 5452 instance
[RRC][W][eNB 0] Removing UE RNTI 5452 MAC: cannot remove UE rnti 5452
[MAC][W][rrc_mac_remove_ue] rrc_mac_remove_ue: UE 5452 not found
[S1AP][W][s1ap_ue_context_release_req] Failed to find ue context associated with eNB ue s1ap id: 0
[S1AP][E][s1ap_eNB_task] Failed to find ue context associated with eNB ue s1ap id: 0
[RRC][I][FRAME 00000][eNB][MOD 00][RNTI 5452] Removed UE context [INFO] L 4266779680 [INFO] L 4343611520

Can u please share us how did u solved this problem

Thanks
Diwakar