LuxeZN
commented
1 month ago I would try running with sudo, I would also try running the other tests. ./nr_cell_search_test seems to work for me and get the result you want.
You also are supposed to pass in a config file, but regardless I wasn't able to get that script to work on my end either.
sudo ./nr_cell_search_test --rf.device_name uhd --rf.device_args "type=b200" --srate 23040000 --ssb_scs 15 --meas_len_ms 1000 --meas_period_ms 1000 ~/.config/srsran/ue_20mhz_b210.conf
Active RF plugins: libsrsran_rf_uhd.so
Inactive RF plugins:
Opening 1 channels in RF device=uhd with args=type=b200
Supported RF device list: UHD file
[INFO] [UHD] linux; GNU C++ version 9.4.0; Boost_107100; UHD_4.6.0.HEAD-0-g50fa3baa
[INFO] [LOGGING] Fastpath logging disabled at runtime.
Opening USRP channels=1, args: type=b200,master_clock_rate=23.04e6
[INFO] [UHD RF] RF UHD Generic instance constructed
[INFO] [B200] Detected Device: B210
[INFO] [B200] Operating over USB 3.
[INFO] [B200] Initialize CODEC control...
[INFO] [B200] Initialize Radio control...
[INFO] [B200] Performing register loopback test...
[INFO] [B200] Register loopback test passed
[INFO] [B200] Performing register loopback test...
[INFO] [B200] Register loopback test passed
[INFO] [B200] Asking for clock rate 23.040000 MHz...
[INFO] [B200] Actually got clock rate 23.040000 MHz.
Warning: TX gain was not set. Using open-loop power control (not working properly)
-- Statistics:
Probability of detection: 0.000000
Probability of false alarm: 0.000000
2024-10-22T18:21:22.218853 [PHY ] [W] [ 999] NR intra frequency performance 0 Msps
Issue Description
I would like to scan band 28 using nr_cell_search_rf.
Expected Behavior
Get an output similar to cell_search:
Actual Behaviour
Steps to reproduce the problem
./nr_cell_search_rf --bands 28 --rf.device_name uhd --rf.device_args "type=b200, serial=xxxx" --rf.log_level info --log_level info --rf.rx_gain 50
Additional Information
I don't understand why the central frequency is initialized to 0. I also tried to put it as a parameter and to use the value 780.5MHz as the downlink frequency range for band 28, which goes from 758 MHz to 803 MHz. I have checked that the SSB frequencies calculated for this band are correct following TS38.104 Table 5.4.3.1-1. Could someone help me? I would also be grateful if someone could suggest other ways of scanning this band using software. Thank you all!