[srslte-users] [Warning] L on lime sdr

[Justin Tallon]

Hey Bilal,

The rate of USB 2.0 is too low to get the messege to the fpga on time for
transmission so it reports a late.

The Lates in the USB 3.0 case could be caused by congested CPU.

Have you set your CPU governor to "PERFORMANCE"?

____
Justin Tallon Ph.D.

Software Radio Systems (SRS)
http://www.softwareradiosystems.com

+353-86-067-0753 | justin.tallon at softwareradiosystems.com


On Wed, May 8, 2019 at 5:40 PM Bilal Maqsood <bilalmaqsood88 at gmail.com>
wrote:

> Hey Justin,
>
> So it means when I send the RA with RA-RNTI, I cannot receive back the
> response because data transfer rate of USB 2.0 is slower than USB 3.0.
> Correct me if I am wrong ?
>
> Secondly, I tried with usb 3.0 before, there I can establish the
> connection but still i receive [warning] L few times. What could be the
> problem in this case?
>
> Thanks and regards,
> Bilal
>
>
>
> On Wed, May 8, 2019 at 5:32 PM Justin Tallon <
> justin.tallon at softwareradiosystems.com> wrote:
>
>> USB 3.0 is needed.
>>
>> Can you switch to a USB 3.0 port and try again?
>>
>> Regards,
>> Justin
>> ____
>> Justin Tallon Ph.D.
>>
>> Software Radio Systems (SRS)
>> http://www.softwareradiosystems.com
>>
>> +353-86-067-0753 | justin.tallon at softwareradiosystems.com
>>
>>
>> On Wed, May 8, 2019 at 5:17 PM Bilal Maqsood <bilalmaqsood88 at gmail.com>
>> wrote:
>>
>>> Hi All,
>>>
>>> I am getting this warning on LimeSDR. Cannot establish connection to
>>> eNB.
>>>
>>> Is it because I am using LimeSDR with USB port 2.0 and my laptop is core
>>> i5 3 gen.
>>>
>>> Please advise.
>>>
>>> Setting PDN protocol to IPv4
>>> Random Access Transmission: seq=2, ra-rnti=0x2
>>> [WARNING] L
>>> [WARNING] L
>>> [WARNING] L
>>> Random Access Transmission: seq=3, ra-rnti=0x2
>>> [WARNING] L
>>> [WARNING] L
>>> [WARNING] L
>>> Random Access Transmission: seq=7, ra-rnti=0x2
>>> [WARNING] L
>>> [WARNING] L
>>> [WARNING] L
>>> Random Access Transmission: seq=4, ra-rnti=0x2
>>> [WARNING] L
>>> [WARNING] L
>>> [WARNING] L
>>> Random Access Transmission: seq=6, ra-rnti=0x2
>>> [WARNING] L
>>> [WARNING] L
>>> [WARNING] L
>>> Random Access Transmission: seq=1, ra-rnti=0x2
>>> [WARNING] L
>>> [WARNING] L
>>> [WARNING] L
>>> [WARNING] L
>>>
>>> Thanks and Regards,
>>> _______________________________________________
>>> srslte-users mailing list
>>> srslte-users at lists.softwareradiosystems.com
>>> http://www.softwareradiosystems.com/mailman/listinfo/srslte-users
>>>
>>
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