Closed terry-hasegawa closed 2 months ago
The issue should solved in current main
. Could you retest and check please?
Pulled the latest 24.04 from srs github and compiled without any modification. I am still getting the numsymbol = 0. We are using long preamble 0 on n71 10MHz bandwidth.
RU_n71_10mhz_4x4_v12.yml.txt srs_main_2404_ofh_run01.pcap.gz gnb_run01.zip
Hi @andrepuschmann, This issue was also reproduced on the main branch. Please check.
I just double checked with current main and the config @wei-lou posted and I confirm that it works. See here:
I guess you are using an older version.
Hi @andrepuschmann ,
This is the link I pulled the latest 24.04 load and then compiled. Is this the right link for the latest load or there are some other links? Thanks,
https://github.com/srsran/srsRAN_Project/archive/refs/tags/release_24_04.tar.gz
The release is from April 22nd. You need to git clone the repo and use the main branch to get the latest code. We only do tagged releases every 6 months.
The release is from April 22nd. You need to git clone the repo and use the main branch to get the latest code. We only do tagged releases every 6 months.
The release is from April 22nd. You need to git clone the repo and use the main branch to get the latest code. We only do tagged releases every 6 months.
Got it, thanks for the clarification
@andrepuschmann Did git pull, now the numsymbol is 1. Thank you.
Issue Description
When using Long Preamble, the number of symbols included in the O-RAN Fronthaul C-Plane for PRACH is 0. The number of symbols is defined by O-RAN WG4 CUS as follows:![image](https://github.com/srsran/srsRAN_Project/assets/126004237/4b4a2b6e-b97b-4cef-a42b-731372515cbf)
However, when using Long Preamble Format 0, the number of symbols is 0.![image](https://github.com/srsran/srsRAN_Project/assets/126004237/7a50b5ac-03d4-4273-8cca-b5ccf03af039)
Setup Details
Set up srs gNB with Long Preamble Format.
Expected Behavior
An appropriate number of symbols is set in the Fronthaul packet.
Actual Behaviour
The Fronthaul C-Plane for PRACH has number of symbols set to 0.
Steps to reproduce the problem
Set up srs gNB with Long Preamble Format.
Additional Information
For Short Preamble, the number of symbols is set in lib\ran\prach\prach_preamble_information.cpp::get_prach_preamble_short_info(). However, for Long Preamble, the number of symbols is not set in lib\ran\prach\prach_preamble_information.cpp::get_prach_preamble_long_info().
get_prach_preamble_long_info()![image](https://github.com/srsran/srsRAN_Project/assets/126004237/6f33ca77-5c63-425e-bf0c-76bb9b33d086)
get_prach_preamble_short_info()![image](https://github.com/srsran/srsRAN_Project/assets/126004237/b9935e7e-28f2-4c4e-950a-1a27e64f29fa)