[srslte-users] Fwd: srsUE testing with R&S CMW 500 - eNB Simulator

[Andre Puschmann]

Hi,

first of all, UE test mode is not supported in the public version of
srsUE. So don't try to use it.

In the second logs, similar to the one that you've sent before, the UE
sends an attach reject because the security caps don't match.

We don't allow zero integrity.

Regards
Andre


See here:
10:30:57.047144 [NAS ] [I] Received Security Mode Command ksi: 3, eea:
EEA0, eia: EIA0
10:30:57.047152 [NAS ] [W] Sending Security Mode Reject due to security
capabilities mismatch
10:30:57.047161 [NAS ] [I] Sending security mode reject
10:30:57.047179 [RRC ] [I] SRB1 - Tx ulInformationTransfer (6 B)
10:30:57.047187 [PDCP] [I] TX SRB1 SDU, SN: 2, do_integrity = fal


On 13/6/19 12:34, Bilal Maqsood wrote:
> 
> Hi everyone,
> 
> I hope you are doing well.
> 
> I tried to test the srsUE with CMW 500 and there are a few issues I have
> faced. It will be great if anyone can guide me in this regard.
> 
> Below is the details:
> 
> *1. Running srsUE with Soft Sim mode - Authentication and AS + NAS
> Security mode off:*
> 
> First to of all I used CMW 500 in Test mode AS, NAS Security and
> Authentication was disabled. The UE connects and gets the IP but
> disconnect in 2 3 seconds. And gives error "Scheduling request failed:
> releasing RRC connection..." UE log (ue (Soft Sim)-Authentication and
> security off) is attached.
> 
> Warning on CMW 500: "Signaling Failure"
> 
> Below is the console output:
> 
> $ sudo srsue ue.conf
> 
> linux; GNU C++ version 5.4.0 20160609; Boost_105800;
> UHD_003.009.007-5-ge8202128
> 
> 
> Reading configuration file ue.conf...
> 
> 
> Built in Release mode using commit 3cc4ca8 on branch master.
> 
> 
> --- Software Radio Systems LTE UE ---
> 
> 
> Opening RF device with 1 RX antennas...
> 
> Opening USRP with args: type=x300,master_clock_rate=184.32e6
> 
> -- X300 initialization sequence...
> 
> -- Determining maximum frame size... 1472 bytes.
> 
> -- Setup basic communication...
> 
> -- Loading values from EEPROM...
> 
> -- Setup RF frontend clocking...
> 
> -- Radio 1x clock:184.32
> 
> -- Initialize Radio0 control...
> 
> -- Performing register loopback test... pass
> 
> -- Initialize Radio1 control...
> 
> -- Performing register loopback test... pass
> 
> Waiting PHY to initialize...
> 
> ...
> 
> Attaching UE...
> 
> Searching cell in DL EARFCN=3300, f_dl=2675.0 MHz, f_ul=2555.0 MHz
> 
> ..
> 
> Found Cell: PCI=0, PRB=6, Ports=1, CFO=-0.3 KHz
> 
> Found PLMN: Id=00101, TAC=1
> 
> Setting PDN protocol to IPv4
> 
> Random Access Transmission: seq=39, ra-rnti=0x7
> 
> Random Access Complete. c-rnti=0x46, ta=0
> 
> RRC Connected
> 
> Network attach successful. IP: 192.168.48.129
> 
> Scheduling request failed: releasing RRC connection...
> 
> Random Access Transmission: seq=26, ra-rnti=0x9
> 
> 
> *2. Running srsUE with Soft Sim mode - Authentication and AS + NAS
> Security mode ON:*
> 
> 
> In this case I recieve attach reject with the following warning:
> 
> [NAS ] [W] Received Attach Reject. Cause= 18 
> 
> UE log and CMW 500 screenshot is attached. Please let me know if you get
> any clue what I have done wrong.
> 
> I have seen the 3GPP document 3GPP TS 24.301 V10.12.0 (2013-12) and the
> reason stated is:
> 
> Cause #18 – CS domain not available This EMM cause is sent to the UE if
> the MME cannot service an UE generated request because of no
> availability of CS domain.
> 
> Log (ue (soft sim) -Authentication and Security enable) and "CMW 500
> security on" screen shot is attached.
> 
> Warning on CMW 500 "NAS Security mode Failure".
> 
> Please let me know what I have done wrong in configurations.
> 
> These tests are performed with previous release of srsLTE.
> 
> 
> Thanks and Regards,
> 
> Bilal
> 
> 
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