[srslte-users] How to connect srsUE to Amarisoft LTE 100 eNodeB and MME?

Ismael Gomez ismael.gomez at softwareradiosystems.com
Tue Jan 19 09:07:22 UTC 2016


Also make sure the option zeroCorrelationZoneConfig in the sib23 ASN
configuration file is set to 11.

On Tue, 19 Jan 2016 at 09:51 Paul Sutton <paul at softwareradiosystems.com>
wrote:

> Hi,
>
> You may need to adjust the gain values at the UE and/or eNB.
> For a distance of about 1.5m between UE and eNB, using band 7, I find a UE
> tx_gain of 50 and eNB tx_gain of 15, rx_gain of 20 works quite well. This
> is with a USRP N210 at eNB and B210 at UE.
>
> In your case, the UE correctly detects the network and attempts to send a
> random access preamble. If this is received by the eNB, you should see a
> PRACH notification in the console trace and the eNB should send a random
> access response. Either the PRACH isn't being received by the eNB or the
> RAR (response) isn't being received by the UE. Thus, the UE attempts to
> send 10 times and fails if it doesn't receive a response.
>
> Best regards,
> Paul
>
>
> On 19/01/16 08:22, 申衡阳 wrote:
>
> Hi all,
>         I have tested srsLTE UE with "./pdsch_ue  -r *** -f ***", which
> can connect to Amarisoft eNB.  I did a few test before using COST UE
> connecting to Amarisoft MME.  I've learned that "UE receiver tested and
> verified with Amarisoft LTE 100 eNodeB and commercial LTE networks  "  from the
> GitHub.
>         I did some work trying to use  srsUE to connect to Amarisoft LTE
> network I built. I have change the following in the ue.conf:
> dl_freq, ul_freq, algo, op , amf, k, imsi, imei.
> Then I run ./ue ue.conf. However, it didn't work well. It crashed with Random
> Access Transmission: seq=10, ra-rnti=2. after SIB2 received.  I checked
> the ue.log and found the error:
>  [MAC ] Error   [00576] RA ResponseErr : Maximum number of transmissions
> reached (10).
>
> I have no idea about it. Did I miss something?  Do you have any idea?  Any
> help will be appreciated.
> By the way,  Amarisoft LTE network I built has been tested with COST
> UE(with the certain usim card I write), it goes well.
>
>
> Best Regards
>
>  Hengyang SHEN
>
> E-mail: bupt_shine at 163.com
> 2016-01-19
>
>
>
>
>
>
> _______________________________________________
> srslte-users mailing listsrslte-users at lists.softwareradiosystems.comhttp://www.softwareradiosystems.com/mailman/listinfo/srslte-users
>
>
> --
> ________________________________________________________________
> Paul Sutton Ph.D.
>
> Software Radio Systems (SRS)http://www.softwareradiosystems.com
>
> +353-87-9813473 | paul at softwareradiosystems.com
>
> PGP Key ID: 3B4A5292
> Fingerprint: B0AC 19C9 B228 A6EB 86E1 82B2 90C7 EC95 3B4A 5292
> ________________________________________________________________
>
> _______________________________________________
> srslte-users mailing list
> srslte-users at lists.softwareradiosystems.com
> http://www.softwareradiosystems.com/mailman/listinfo/srslte-users
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.softwareradiosystems.com/pipermail/srslte-users/attachments/20160119/bed79577/attachment-0001.html>


More information about the srslte-users mailing list