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move vrtsim channel and per-UE param configuration from CLI flags to config file Add vrtsim channel and per-UE parameter configuration to the gNB config file. Previously, running a multi-UE vrtsim test required a long list of CLI flags; these can now be configured directly in the config file under a vrtsim: section. The gNB can be started with simply: sudo ./nr-softmodem -O gnb.sa.band78.106prb.vrtsim.2x2.yaml --device.name vrtsim Reviewed-By: Bartosz Podrygajlo <bartosz.podrygajlo@openairinterface.org>
Configuration files: naming style guide
The configuration files should have the following name format:
<type>[.<sa|nsa>][.band<num>.[u<num>.]<num>prb].<sdr>[.<opt>].conf
Where:
[]means this field is optional<type>: one ofgnb,enb,gnb-cu,gnb-du,nrue,lteue, etc.<sa|nsa>: in the case of 5G, notes whether this is SA or NSA<num>forband/u/prb: numerical value. Note that band/PRB are only applicable in some cases. The numerologyuis only to be set for 5G if it differs fromu1.<sdr>: what SDR board/split this is tailored for:- e.g.,
usrpb210,usrpn310,rfsim,aw2s - if there is no SDR (e.g., for a CU), use the south-bound split, e.g.,
f1,if4p5, etc. - for the L2simulator, write
l2sim
- e.g.,
<opt>: optional specifiers. If there are multiple, concatenated using a dash (-). Examples:2x2prs(positioning reference signal)ddsuu(specific TDD pattern)tm2: Transmission Mode 2 in 4Goaiue: specifies usage with OAI UE and not COTS UE
Examples:
- standard monolithic gNB, 2x2 configuration, with SDAP:
gnb.sa.band78.162prb.usrpn310.2x2-sdap.conf - gNB-CU:
gnb-cu.sa.f1.conf - monolithic gNB, L2sim:
gnb.sa.band77.106prb.l2sim.conf - monolithic eNB:
enb.band7.25prb.usrpb200.conf - RCC (4G eNB with IF4.5 split):
enb-rcc.band7.25prb.tm1.if4p5.conf
Notes:
- there is no need for TDD/FDD, this is encoded in the band number
- there is no need for FR1/FR2, this is encoded in the band number