I have a problem using bladeRF A4 to make OAI 5G SA
I use Ubuntu 22.04.2 LTS (Jammy Jellyfish) Desktop, on 5.19.0-46-generic, try to run OAI on branch 'develop' and run bladeRF A4.
I follow this link, it suggest to not use command ./build_oai -I -w BLADERF, but install bladeRF from source.
I finish download bladeRF library and can correctly use interaction mode via command bladeRF-cli -i. I use the command to set necessary parameters for bladeRF. The result of setting are shown below.
$ sudo bladeRF-cli -i
bladeRF> print frequency
RX1 Frequency: 2400000000 Hz (Range: [70000000, 6000000000])
RX2 Frequency: 2400000000 Hz (Range: [70000000, 6000000000])
TX1 Frequency: 2400000000 Hz (Range: [47000000, 6000000000])
TX2 Frequency: 2400000000 Hz (Range: [47000000, 6000000000])
bladeRF> print gain
Gain RX1 overall: 60 dB (Range: [-15, 60])
full: 71 dB (Range: [-4, 71])
Gain RX2 overall: 60 dB (Range: [-15, 60])
full: 71 dB (Range: [-4, 71])
Gain TX1 overall: 56 dB (Range: [-23.75, 66])
dsa: -90 dB (Range: [-89.75, 0])
Gain TX2 overall: 56 dB (Range: [-23.75, 66])
dsa: -90 dB (Range: [-89.75, 0])
bladeRF> print bandwidth
RX1 Bandwidth: 18000000 Hz (Range: [200000, 56000000])
RX2 Bandwidth: 18000000 Hz (Range: [200000, 56000000])
TX1 Bandwidth: 18000000 Hz (Range: [200000, 56000000])
TX2 Bandwidth: 18000000 Hz (Range: [200000, 56000000])
bladeRF> print samplerate
RX1 sample rate: 30720000 0/1 (Range: [520834, 122880000])
RX2 sample rate: 30720000 0/1 (Range: [520834, 122880000])
TX1 sample rate: 30720000 0/1 (Range: [520834, 122880000])
TX2 sample rate: 30720000 0/1 (Range: [520834, 122880000])
All I have mentioned are part of step 1 - 3 of the link. And now I have problem in step 4, which said I can run softmodem now. The instruction of this step is included here.
4. Tune the RX gain using the enb tracer.
Run the softmodem and the 'enb' tracer. For instructions, see:
https://gitlab.eurecom.fr/oai/openairinterface5g/wikis/T/basic
In the enb window, check the 'input signal'. You should see some blue
signal as seen at:
https://gitlab.eurecom.fr/oai/openairinterface5g/wikis/T/enb
Please help me how can I run softmodem? How to correctly build OAI for bladeRF to run 5G SA?
note: I try this link as it have softmodem command here.
sudo ./nr-softmodem -O ../../../targets/PROJECTS/GENERIC-NR-5GC/CONF/gnb.sa.band78.fr1.106PRB.usrpb210.conf --gNBs.[0].min_rxtxtime 6 --rfsim --sa
but when i trace the command to see where they open the project, inside the folder targets/PROJECTS/GENERIC-NR-5GC/CONF there is nothing related to bladeRF, only USRP which is an SDR from Ettus
~/ubuntu_work2/openairinterface5g/targets/PROJECTS/GENERIC-NR-5GC/CONF$ ls
cu_gnb.conf
du_gnb.conf
gnb0.sa.band261.fr2.64PRB.prs.usrpx310.conf
gnb0.sa.band78.fr1.106PRB.prs.usrpx310.conf
gnb1.sa.band261.fr2.64PRB.prs.usrpx310.conf
gnb1.sa.band78.fr1.106PRB.prs.usrpx310.conf
gnb.band78.sa.fr1.106PRB.2x2.usrpn310.conf
gnb.band78.sa.fr1.162PRB.2x2.usrpn310.conf
gnb.band78.tm1.106PRB.usrpn300.gtp-itti.conf
gNB_SA_40_2x2.conf
gnb.sa.band41.fr1.106PRB.usrpb210.conf
gnb.sa.band41.fr1.52PRB.usrpb210.conf
gnb.sa.band66.fr1.106PRB.usrpn300.conf
gnb.sa.band66.fr1.106PRB.usrpx300.conf
gnb.sa.band66.fr1.24PRB.usrpx300.conf
gnb.sa.band66.fr1.25PRB.usrpx300.conf
gnb.sa.band77.fr1.273PRB.2x2.usrpn300.conf
gnb.sa.band77.fr1.273PRB.usrpx300.conf
gnb.sa.band78.fr1.106PRB.2x2.usrpn300.conf
gnb.sa.band78.fr1.106PRB.usrpb210.4layer.conf
gnb.sa.band78.fr1.106PRB.usrpb210.conf
gnb.sa.band78.fr1.106PRB.usrpb210.sabox.conf
gnb.sa.band78.fr1.162PRB.2x2.usrpn300.conf
gnb.sa.band78.fr1.217PRB.2x2.usrpn300.conf
gnb.sa.band78.fr1.24PRB.usrpb210.conf
pnf.sa.band78.rfsim.conf
uecap_ports1.xml
uecap_ports2.xml
ue.conf
ue.nr.prs.fr1.106prb.conf
ue.nr.prs.fr2.64prb.conf
vnf.sa.band78.106prb.rfsim.conf