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pespin gerrit-no-reply at lists.osmocom.orgpespin has posted comments on this change. ( https://gerrit.osmocom.org/c/osmo-gsm-tester/+/21511 )
Change subject: configure fixed ARFCN per bts
......................................................................
Patch Set 3:
(1 comment)
https://gerrit.osmocom.org/c/osmo-gsm-tester/+/21511/2/sysmocom/resources.conf.prod
File sysmocom/resources.conf.prod:
https://gerrit.osmocom.org/c/osmo-gsm-tester/+/21511/2/sysmocom/resources.conf.prod@37
PS2, Line 37: - arfcn: 870
> erm i don't follow ... […]
See sysmocom/default.conf:
"""
bsc_bts:
...
trx_list:
arfcn: 868
..
arfcn: 872
...
"""
So all BTS are configured by default to use 868 on first TRX and 872 on second TRX. As an interesting detail, you can see that then all BTS get config for 2 TRXs by default, but the bts.py base code trims the trx_list to be of size "num_trx", which is the attribute defining the amount of TRX to use.
Hence, you should configure the 2nd TRX here in this line (where I'm writing this comment). Something like:
"""
trx_list:
- arfcn: 870
- arfcn: 874
"""
BTW, also take into account for the nanoBTS on the 900 band we used to apply some arfcns manually (to overcome the ARFCN object limitations and selections, since the 1800 band cannot be used there). Furthermore, take into account that one iirc has 2 nanoBTS intercconected, which means is basically a 2-TRX nanoBTS (so you'll also need to assign 2 ARFCN to it).
To understand what I mean, see:
src/osmo_gsm_tester/obj/bts_nanobts.py:73: config.overlay(trx_list[trx_i], { 'arfcn' : str(531 + trx_i * 2) })
src/osmo_gsm_tester/obj/bts_nanobts.py:76: config.overlay(trx_list[trx_i], { 'arfcn' : str(50 + trx_i * 2) })
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Gerrit-Project: osmo-gsm-tester
Gerrit-Branch: master
Gerrit-Change-Id: I0a6c60544226f4261f9106013478d6a27fc39f38
Gerrit-Change-Number: 21511
Gerrit-PatchSet: 3
Gerrit-Owner: neels <nhofmeyr at sysmocom.de>
Gerrit-Reviewer: Jenkins Builder
Gerrit-CC: pespin <pespin at sysmocom.de>
Gerrit-Comment-Date: Mon, 07 Dec 2020 10:19:33 +0000
Gerrit-HasComments: Yes
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Comment-In-Reply-To: neels <nhofmeyr at sysmocom.de>
Comment-In-Reply-To: pespin <pespin at sysmocom.de>
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