[srslte-users] OAI UE not connecting to OAI enb (missed real time error)

[Samie Mostafavi]

Hi,

I am trying to connect my customized ADRV board using OAI ue to USRP B210
OAI enb. When I run UE in --test-phy mode, I get the "Missed real time"
error:

sudo ./cmake_targets/lte_build_oai/build/lte-uesoftmodem -U 1 -C 2680012000
-r 25 --ue-rxgain 125 --ue-txgain 125 --ue-max-power 0 --ue-scan-carrier
--phy-test --nokrnmod 1 --noS1 2>&1 | tee UE.log
...
...
[PHY]   [UE 0] Frame 248 RRC Measurements => rssi -85.0 dBm (dig 40.0 dB,
gain 125), N0 -152 dBm,  rsrp -109.8 dBm/RE, rsrq 9.0 dB
[PHY]   [UE 0] Frame 248 MIB Information => FDD, NORMAL, NidCell 0, N_RB_DL
25, PHICH DURATION 0, PHICH RESOURCE 1/6, TX_ANT 1
[PHY]   [UE 0] Frame 248 Measured Carrier Frequency 2680015614 Hz (offset
-4 Hz)
[HW]   Got synch: hw_slot_offset 3, carrier off 0 Hz, rxgain 125 (DL
2680015610, UL 2560015610), UE_scan_carrier 0
Setting adrv TX Freq 2560015610.000000, RX Freq 2680015610.000000
[PHY]   Initializing frame parms for N_RB_DL 25, Ncp 0, osf 1
[PHY]   lte_parms.c: Setting N_RB_DL to 25, ofdm_symbol_size 512
[PHY]   Resynchronizing RX by 15064 samples (mode = 0)
[PHY]   Missed real time

I searched but I couldnt figure how this issure can be resolved. Is it due
to CPU performance? I have installed low-latency kernel. I would appreciate
if anyone can help.
The UE log is attached. (enb gets nothing)

Best,
Samie
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