[srslte-users] Fwd: UE Failed to Attach

[Ismael Gomez]

Check first with lib/examples/pdsch_ue and lib/examples/pdsch_enodeb tests.
Use spectrum analyzer to make sure signal is good.

With the bladerf, you might also need to calibrate the IQ imbalance for
your operating frequency. See ue.conf and enb.conf at the bottom

On Wed, 15 Nov 2017 at 10:39 Anuchuru Sudheer Kumar <
sudheeranuchuru at gmail.com> wrote:

> Hi Ismael,
>
> Thanks for your reply.
>
> I placed both eNodeB and UE very near to each other and tested.
>
> Regards
> Sudheer
>
> On Wed, Nov 15, 2017 at 2:55 PM, Ismael Gomez <
> ismael.gomez at softwareradiosystems.com> wrote:
>
>> Looks like the signal quality is not good enough to proceed with the
>> synchronization.
>>
>> On Wed, 15 Nov 2017 at 10:24 Anuchuru Sudheer Kumar <
>> sudheeranuchuru at gmail.com> wrote:
>>
>>>
>>> Hi,
>>>
>>> I am trying to connect UE (using bladeRF) to the eNodeB (using bladeRF).
>>>
>>> I am getting below errors in ue.log.
>>>
>>> *14:24:19.682528 [PHY ] Info    [07105] SYNC:  DONE, TTI=7180,
>>> sfn_offset=2*
>>> *14:24:19.691991 [RRC ] Info    Detected 1 in-sync from PHY. Stopping
>>> T310 timer*
>>> *14:24:19.723191 [MAC ] Info    [07222] SCHED: Searching for DL grant
>>> for SI-RNTI window_st=7245, window_len=1*
>>> *14:24:19.833232 [MAC ] Info    [07332] SCHED: Searching for DL grant
>>> for SI-RNTI window_st=7345, window_len=1*
>>> *14:24:19.833804 [MAC ] Info    [07333] BSR:   QUEUE status: 0 (0), 0
>>> (0), 0 (0), 0 (0), 0 (0), 0 (0), *
>>> *14:24:19.866622 [PHY ] Error   [07364] Sync error. Sending out-of-sync
>>> to RRC*
>>> *14:24:19.866654 [RRC ] Info    Detected 1 out-of-sync from PHY.
>>> Starting T310 timer*
>>> *14:24:19.881964 [PHY ] Info    [07364] SYNC:  Decoding MIB...*
>>> *14:24:19.892013 [PHY ] Info    [07364] SYNC:  Decoding MIB...*
>>> *14:24:19.902065 [PHY ] Info    [07364] SYNC:  Decoding MIB...*
>>> *14:24:19.902245 [PHY ] Info    [07364] SYNC:  DONE, TTI=7400,
>>> sfn_offset=0*
>>> *14:24:19.912114 [RRC ] Info    Detected 1 in-sync from PHY. Stopping
>>> T310 timer*
>>> *14:24:19.928044 [PHY ] Error   [07425] Sync error. Sending out-of-sync
>>> to RRC*
>>> *14:24:19.928060 [RRC ] Info    Detected 1 out-of-sync from PHY.
>>> Starting T310 timer*
>>> *14:24:19.981968 [PHY ] Info    [07425] SYNC:  Decoding MIB...*
>>> *14:24:19.982082 [PHY ] Info    [07425] SYNC:  DONE, TTI=7480,
>>> sfn_offset=0*
>>> *14:24:19.992028 [RRC ] Info    Detected 1 in-sync from PHY. Stopping
>>> T310 timer*
>>> *14:24:19.993282 [MAC ] Info    [07492] SCHED: Searching for DL grant
>>> for SI-RNTI window_st=7505, window_len=1*
>>> *14:24:20.048171 [PHY ] Error   [07545] Sync error. Sending out-of-sync
>>> to RRC*
>>> *14:24:20.048206 [RRC ] Info    Detected 1 out-of-sync from PHY.
>>> Starting T310 timer*
>>> *14:24:20.081987 [PHY ] Info    [07545] SYNC:  Decoding MIB...*
>>>
>>>
>>> Please help me out in solving this issue.
>>>
>>> Regards
>>> Sudheer
>>>
>>> _______________________________________________
>>> srslte-users mailing list
>>> srslte-users at lists.softwareradiosystems.com
>>> http://www.softwareradiosystems.com/mailman/listinfo/srslte-users
>>>
>>
>
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