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

[魏宏修]

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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