[srslte-users] Fwd: Issue in connecting srsUE with OAI eNB

Mathias Rønholt Kielgast mkielg11 at student.aau.dk
Fri Nov 4 10:01:42 UTC 2016


Hi again,

I looks like I was a bit too fast on the trigger there. The error occurred was caused by the eNB (OAI) and was quickly fixed.
Thank you very much for your help!

Yours sincerely,
Mathias Rønholt Kielgast
Master's Student, Wireless Communication Systems
Aalborg University
________________________________
From: Mathias Rønholt Kielgast
Sent: 04 November 2016 10:41
To: Supreeth Herle
Cc: Himank Gupta; srslte-users at lists.softwareradiosystems.com
Subject: RE: [srslte-users] Fwd: Issue in connecting srsUE with OAI eNB

Hi Supreeth,

Thank you for your swift response. I'm sorry, I misunderstood, I thought you meant next as in the newest revision.
Both my srsUE and srsLTE is now at head revision of the next branches, with your changes in nas and gw modules in srsUE (from pull request). I can now compile, however, I'm now not succeeding in the RA procedure:

Found CELL ID: 0 CP: Normal  , CFO: 0.0 KHz.
Trying to decode MIB...
 - Cell ID:         0
 - Nof ports:       1
 - CP:              Normal
 - PRB:             25
 - PHICH Length:    Normal
 - PHICH Resources: 1/6
 - SFN:             0
MIB received BW=5 MHz
Initializating cell configuration...
Setting Sampling frequency 5.76 MHz
Setting manual TX/RX offset to 100 samples
Setting TX/RX offset 100 samples, 17.36 us
SIB1 received, CellID=3584,  PLMN Id: MCC 208 MNC 93
SIB2 received
Random Access Transmission: seq=1, ra-rnti=2
Random Access Transmission: seq=2, ra-rnti=2
Random Access Transmission: seq=3, ra-rnti=2
Random Access Transmission: seq=4, ra-rnti=2
Random Access Transmission: seq=5, ra-rnti=2
Random Access Transmission: seq=6, ra-rnti=2
Random Access Transmission: seq=7, ra-rnti=2
Random Access Transmission: seq=8, ra-rnti=2
Random Access Transmission: seq=9, ra-rnti=2
Random Access Transmission: seq=10, ra-rnti=2
Warning: Detected Radio-Link Failure
RRC Connection released.

I hope you might be able to help?

Yours sincerely,
Mathias Rønholt Kielgast
Master's Student, Wireless Communication Systems
Aalborg University
________________________________
From: Supreeth Herle [s.herle at create-net.org]
Sent: 04 November 2016 09:57
To: Mathias Rønholt Kielgast
Cc: Himank Gupta; srslte-users at lists.softwareradiosystems.com
Subject: Re: [srslte-users] Fwd: Issue in connecting srsUE with OAI eNB

Hi Mathias,

Are you sure you are using "next" branch of srsLTE??

I'm using the following commit of srsLTE,

srsLTE: next branch -> following commit https://github.com/srsLTE/srsLTE/commit/3ff153f06a6582ca004772dee3b372577208e033

Regards,
Supreeth

On Fri, Nov 4, 2016 at 9:50 AM, Mathias Rønholt Kielgast <mkielg11 at student.aau.dk<mailto:mkielg11 at student.aau.dk>> wrote:
Hi Supreeth,

I cannot compile when I implement your pull request. I get errors when making the srsUE project (console error log attached)?

Yours sincerely,
Mathias Rønholt Kielgast
Master's Student, Wireless Communication Systems
Aalborg University
________________________________
From: srslte-users [srslte-users-bounces at lists.softwareradiosystems.com<mailto:srslte-users-bounces at lists.softwareradiosystems.com>] on behalf of Supreeth Herle [s.herle at create-net.org<mailto:s.herle at create-net.org>]
Sent: 25 October 2016 13:36
To: Himank Gupta
Cc: srslte-users at lists.softwareradiosystems.com<mailto:srslte-users at lists.softwareradiosystems.com>
Subject: Re: [srslte-users] Fwd: Issue in connecting srsUE with OAI eNB

Hi,

The setup which works for me is as follows:

srsLTE: next branch -> following commit https://github.com/srsLTE/srsLTE/commit/3ff153f06a6582ca004772dee3b372577208e033

srsUE: next brach -> with the changes as per my pull request.

Best Regards,
Supreeth

On Tue, Oct 25, 2016 at 1:31 PM, Himank Gupta <cs16mtech01001 at iith.ac.in<mailto:cs16mtech01001 at iith.ac.in>> wrote:
Hi

Initially, I am using  following commits for srsLTE and srsUE:

srsLTE : 66a65f4860aa6680a558a65905553c414252b0e7
srsUE : 3542108f88b7062aac65746f021f9d62e9c5df58

Then my srsUE is getting connected wth OAI eNB till RRC and in a console I am getting RRC connected.

If I use latest git pull for srsUE and srsLTE then I am getting following in my srsUE console:

"Timeout while searching for SIB1. Resynchronizing SFN..."

I have edit the file as Supreeth suggested but I am not able to fix above issue.
Please help .
Thanks in advance

Thanks & Regards
Himank Gupta
M.Tech
Department of Computer Science and Engineering
Indian Institute of Technology, Hyderabad
Email : cs16mtech01001 at iith.ac.in<mailto:cs16mtech01001 at iith.ac.in>
Cell : +91-9045158330<tel:%2B91-9045158330>

On Tue, Oct 25, 2016 at 1:55 PM, Supreeth Herle <s.herle at create-net.org<mailto:s.herle at create-net.org>> wrote:

---------- Forwarded message ----------
From: Supreeth Herle <s.herle at create-net.org<mailto:s.herle at create-net.org>>
Date: Tue, Oct 25, 2016 at 10:23 AM
Subject: Re: [srslte-users] Issue in connecting srsUE with OAI eNB
To: Emilie Meyer <emiliemeyer1016 at gmail.com<mailto:emiliemeyer1016 at gmail.com>>

Hi,

You can refer to my pull request for this issue

https://github.com/srsLTE/srsUE/pull/10

Regards,
Supreeth

On Tue, Oct 25, 2016 at 10:18 AM, Emilie Meyer <emiliemeyer1016 at gmail.com<mailto:emiliemeyer1016 at gmail.com>> wrote:
Hi all.

I am also experiencing the same problem. Seems like there is some problem during the attach procedure and the UE is not assigned any IP address.
Has anyone successfully managed to interconnect srsUE with OAI?

Regards

Emilie

2016-10-23 16:49 GMT+02:00 Himank Gupta <cs16mtech01001 at iith.ac.in<mailto:cs16mtech01001 at iith.ac.in>>:
Hi Guys

Can anybody help in order to connect srsUE with OAI eNB.
When i tried to connect I am getting "RRC connected " in srsUE terminal. After that nothing is happening.
In OAI EPC UE is associating but it is not able to allocate bearer to UE.

Help Please !!!!!!!!
Thanks in advance....


Thanks & Regards
Himank Gupta
M.Tech
Department of Computer Science and Engineering
Indian Institute of Technology, Hyderabad
Email : cs16mtech01001 at iith.ac.in<mailto:cs16mtech01001 at iith.ac.in>
Cell : +91-9045158330<tel:%2B91-9045158330>

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Regards

Emilie

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Supreeth Herle
CREATE-NET
Future Networks (FuN)
Research Engineer
Via alla Cascata 56/D - 38123 Povo Trento (Italy)
e-mail: s.herle at create-net.org<mailto:s.herle at create-net.org>
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taking of any action in reliance upon, this information by persons or
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the Italian Law 196/2003 of the Legislature. If you received this in
error, please contact the sender and delete the material from any
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Supreeth Herle
CREATE-NET
Future Networks (FuN)
Research Engineer
Via alla Cascata 56/D - 38123 Povo Trento (Italy)
e-mail: s.herle at create-net.org<mailto:s.herle at create-net.org>
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The information transmitted is intended only for the person or entity to
which it is addressed and may contain confidential and/or privileged
material. Any review, retransmission, dissemination or other use of, or
taking of any action in reliance upon, this information by persons or
entities other than the intended recipient is prohibited according to
the Italian Law 196/2003 of the Legislature. If you received this in
error, please contact the sender and delete the material from any
computer.




--
------------------------------------------------------------------------
Supreeth Herle
CREATE-NET
Future Networks (FuN)
Research Engineer
Via alla Cascata 56/D - 38123 Povo Trento (Italy)
e-mail: s.herle at create-net.org<mailto:s.herle at create-net.org>
-------------------------------------------------------------------------

The information transmitted is intended only for the person or entity to
which it is addressed and may contain confidential and/or privileged
material. Any review, retransmission, dissemination or other use of, or
taking of any action in reliance upon, this information by persons or
entities other than the intended recipient is prohibited according to
the Italian Law 196/2003 of the Legislature. If you received this in
error, please contact the sender and delete the material from any
computer.

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