Cannot connect srsUE to open5gs core network. PDU session is not established.

[edmunds99]

Issue Description

I am trying to use srsUE to connect to open5gs via zeroMQ, according to this article: (https://docs.srsran.com/en/latest/app_notes/source/5g_sa_E2E/source/index.html) However, the PDU session cannot be established at final step. Then after about 30 seconds, the srsUE is removed from AMF.

Setup Details

e.g. Network configuration, Operation System, Hardware, RF front-end, library and driver versions Running on ubuntu 20.04. Configuration files are all downloaded from (https://docs.srsran.com/en/latest/app_notes/source/5g_sa_E2E/source/index.html).

Expected Behavior

srsUE should establish PDU session and connect to open5gs core like this:

Actual Behaviour

PDU session is not established, see figures below. After about 30 seconds, the srsUE is removed from AMF.

Steps to reproduce the problem

[Tell us how to reproduce this issue e.g. RF setup, application config files] Download configuration files and follow the steps to set zmq on (https://docs.srsran.com/en/latest/app_notes/source/5g_sa_E2E/source/index.html). Also modify configuration files according to this page. Then start running open5gs, srsenb and finally srsUE.

Additional Information

[Any additional information, configuration or data that might be necessary to reproduce the issue] the log file shows a pdu establishment request is sent, but there's no response.

[tilldroemmer]

@edmunds99 have you been able to fix this problem?

I'm currently trying to establish a connection between to USRP B210 via srsRANProject using a open5GS core and cant get my PDU session to work. The configuration works with UERANSIM but with the USRPs I only get a RRC connection