[srslte-users] srsUE connecting to srseNB & Free5gc EPC

[Andre Puschmann]

Hi,
you should first read the logs and screen output.

>> Invalid length for IMEI: 0 should be 15


It clearly states where the issue is.

Thanks
Andre

On 2/3/20 9:17, 魏宏修 wrote:
> Hi all,
> 
> Free5gcree5gc and OAI(OpenAirInterface) are very similar systems.
> 
> I'm trying to connect srsUE to Free5gc EPC, architecture
> shown below: 
> 
> srsUE -- srseNB -- Free5gc EPC
> 
> The Free5gc epc can attach to srseNB.
> 
> The srsUE can attach to srseNB,however I can't attach the free5gc EPC successfully.
> 
> I checked the EPC information and found that it was stuck at mme_gid,mme_code,m_tmsi certification.
> 
> 
> srsUE :
> 
> Reading configuration file ue.conf...
> 
> Built in Release mode using commit 0e89fa9 on branch master.
> 
> Opening 1 RF devices with 1 RF channels...
> [INFO] [UHD] linux; GNU C++ version 5.4.0 20160609; Boost_105800; UHD_3.14.0.0-release
> [INFO] [LOGGING] Fastpath logging disabled at runtime.
> [INFO] [B200] Loading firmware image: /usr/share/uhd/images/usrp_b200_fw.hex...
> Opening USRP with args: type=b200,master_clock_rate=23.04e6
> [INFO] [B200] Detected Device: B210
> [INFO] [B200] Loading FPGA image: /usr/share/uhd/images/usrp_b210_fpga.bin...
> [INFO] [B200] Operating over USB 3.
> [INFO] [B200] Detecting internal GPSDO.... 
> [INFO] [GPS] No GPSDO found
> [INFO] [B200] Initialize CODEC control...
> [INFO] [B200] Initialize Radio control...
> [INFO] [B200] Performing register loopback test... 
> [INFO] [B200] Register loopback test passed
> [INFO] [B200] Performing register loopback test... 
> [INFO] [B200] Register loopback test passed
> [INFO] [B200] Asking for clock rate 23.040000 MHz... 
> [INFO] [B200] Actually got clock rate 23.040000 MHz.
> Invalid length for IMEI: 0 should be 15
> Waiting PHY to initialize ... done!
> Attaching UE...
> Searching cell in DL EARFCN=3400, f_dl=2685.0 MHz, f_ul=2565.0 MHz
> .
> Found Cell:  Mode=FDD, PCI=1, PRB=50, Ports=1, CFO=-3.1 KHz
> Found PLMN:  Id=20893, TAC=1
> Random Access Transmission: seq=32, ra-rnti=0x2
> Random Access Complete.     c-rnti=0x46, ta=1
> RRC Connected
> Failed to Attach
> .
> Found Cell:  Mode=FDD, PCI=1, PRB=50, Ports=1, CFO=-3.4 KHz
> Found PLMN:  Id=20893, TAC=1
> 
> 
> How can I solve this problem?
> 
> Thanks and Regards,
> 
> WEI,HONG-SIOU
> 
> 
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