[srslte-users] Need help failed to get attach a COTS UE with LimeSDR-mini

Bouras Abdennour bourascom.dz at gmail.com
Sat Feb 16 10:48:04 UTC 2019


Dear Pedro
Here is the link where you can find my uploaded files (logs, configs, pcap)
:
https://www.dropbox.com/sh/ufualomwb5f1d8g/AABfiT5lQAeJKkvYil233m5Wa?dl=0


Note :
LimeSuite used : v 18.10.0
Host machine : Aspire-E5-573-Core™ i5-4210U CPU @ 1.70GHz × 4
Ubuntu 18.04.1

Best regards,
Abdenour Bouras

On Sat, Feb 16, 2019 at 11:30 AM Bouras Abdennour <bourascom.dz at gmail.com>
wrote:

> Dear Pedro
>
> Here you can find logs, pcap of both enb and epc.Also config files are
> attached.
>
> Note :
> LimeSuite used : v 18.10.0
> Host machine : Aspire-E5-573-Core™ i5-4210U CPU @ 1.70GHz × 4
> Ubuntu 18.04.1
>
> Best regards,
> Abdenour Bouras
>
>
>
> On Fri, Feb 15, 2019 at 2:45 PM Pedro Alvarez <
> pedro.alvarez at softwareradiosystems.com> wrote:
>
>> Hi Bouras,
>>
>> Could you send the enb and the epc pcap?
>>
>> Regards,
>> Pedro
>>
>> On Thu, Feb 14, 2019 at 11:36 AM Bouras Abdennour
>> <bourascom.dz at gmail.com> wrote:
>> >
>> > Dear Andre
>> >
>> >     Thank you so much for your reply. The problem was solved, my phone
>> successfully get attached with srsLTE and data works fine !! I found out I
>> have to position the phone and antennas just right, decreasing n_prb from
>> 50 to 25 PRBs and also enabled performance CPU governor.
>> >
>> >     However, I have another little nasty issue : UE connection is
>> semi-consistent and don't last for long duration. The UE disconnects and
>> re-establish normally, but after some amount of time, UE context is
>> released completely. Kindly find details in attached files.
>> >
>> > Please any tips to get more reliable and stable connection ?
>> >
>> > Note :
>> > I'm running out-off-the-box without using external OCXO or any extra RF
>> front-end installation.
>> >
>> > Best Regards
>> >
>> > Abdenour Bouras
>> >
>> > enb.pcap
>> >
>> >
>> >
>> >
>> > On Mon, Feb 11, 2019 at 4:12 PM Andre Puschmann <
>> andre.puschmann at softwareradiosystems.com> wrote:
>> >>
>> >> Hey,
>> >> you have lots of lates on the enb. So likely the UE doesn't attempt to
>> >> attach. Reduce cell bandwidth, enable performance CPU governor or try a
>> >> stronger computer.
>> >>
>> >> Cheers
>> >> Andre
>> >>
>> >> On 10/2/19 13:35, Bouras Abdennour wrote:
>> >> > Hi
>> >> >
>> >> >    I'm trying to get a COTS UE -OppoR7sf to attach with srsLTE (build
>> >> > from commit 5c088d75 on branch master).
>> >> > Using a LimeSDR-mini HW v1.1 without duplexer.
>> >> >
>> >> > USIM programmed using SIM Personalize tools GRSIMwrite.exe : imsi =
>> >> > 208920100001100; Ki = 6874736969202073796D4B2079650A73; OPC =
>> >> > 777F0406A78D9598B0330D63F4C52199; mcc = 208; mnc = 92, Authentication
>> >> > algorithme used = milenage
>> >> >
>> >> > UE information added in user-db.csv :
>> >> >
>> >> > # Note: Lines starting by '#' are ignored and will be
>> >> > overwritten
>> >> >
>> ue2,001010123456780,00112233445566778899aabbccddeeff,opc,63bfa50ee6523365ff14c1f45f88737d,8000,000000001234,7
>> >> >
>> ue1,001010123456789,00112233445566778899aabbccddeeff,opc,63bfa50ee6523365ff14c1f45f88737d,9001,000000001234,7
>> >> >
>> ue3,208920100001100,6874736969202073796d4b2079650a73,opc,777f0406a78d9598b0330d63f4c52199,8001,000000001234,7
>> >> >
>> >> >
>> >> > Phone can see the network. But no any transaction happen with srsenb
>> ie
>> >> > : Received Attach Request, PDN Connectivity Request ..etc. Kindly
>> find
>> >> > enb and epc logs attached.
>> >> >
>> >> > Best Regards
>> >> >
>> >> > Abdenour Bouras
>> >> >
>> >> > _______________________________________________
>> >> > srslte-users mailing list
>> >> > srslte-users at lists.softwareradiosystems.com
>> >> > http://www.softwareradiosystems.com/mailman/listinfo/srslte-users
>> >> >
>> >>
>> > _______________________________________________
>> > srslte-users mailing list
>> > srslte-users at lists.softwareradiosystems.com
>> > http://www.softwareradiosystems.com/mailman/listinfo/srslte-users
>>
>
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