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srsran / srsRAN_4G

Open source SDR 4G software suite from Software Radio Systems (SRS) https://docs.srsran.com/projects/4g

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enb Tx port not specified in 5G SA End-to-End

chakriganap opened this issue · comments

commented

Issue Description

Unable to connect the eNode B for setup 5G SA End-to-End configuration. But its working fine with srsRAN 4G with ZMQ Virtual Radios

Setup Details

Ubuntu 20.04.6 LTS, Linux 5.4.0-169-generic, VM, srsRAN 4G with ZMQ Virtual Radios and Free5GC Core
e.g. Network configuration, Operation System, Hardware, RF front-end, library and driver versions

Expected Behavior

connect eNodeB

Actual Behaviour

[zmq] enb Tx port not specified. Disabling transmitter.
[zmq] enb Rx port not specified. Disabling receiver.
[zmq] Error: Neither Tx port nor Rx port specified.
Error initializing radio.

Steps to reproduce the problem

run the enb config file

Additional Information

commented

If I remove the nr_cell_list data in rr.config file. the eNodeB connected.

Thanks

commented

Hi there,

As you already figured out, this may happen in situations where the ENB/GNB configuration requires more antenna ports than the number of ZMQ ports provided in the RF arguments. You can solve this by adding additional ZMQ ports to the device_args, for example:

device_args = fail_on_disconnect=true,id=enb,base_srate=23.04e6,tx_port0=tcp://*:5000,rx_port0=tcp://localhost:5100,tx_port1=tcp://*:5001,rx_port1=tcp://localhost:5101. . .