Change in osmo-bsc[master]: MS Power Control Loop: Support set up of C/I parameters for osmo-bts

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fixeria gerrit-no-reply at lists.osmocom.org
Fri Sep 3 16:16:17 UTC 2021


fixeria has posted comments on this change. ( https://gerrit.osmocom.org/c/osmo-bsc/+/25298 )

Change subject: MS Power Control Loop: Support set up of C/I parameters for osmo-bts
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Patch Set 5: Code-Review-1

(6 comments)

https://gerrit.osmocom.org/c/osmo-bsc/+/25298/5/doc/manuals/chapters/power_control.adoc 
File doc/manuals/chapters/power_control.adoc:

https://gerrit.osmocom.org/c/osmo-bsc/+/25298/5/doc/manuals/chapters/power_control.adoc@211 
PS5, Line 211: The general idea of power control is to maintain the signal level (RxLev) and
Looks like an unrelated/unneeded reformatting change to me. I don't see words added or removed, things just moved around.


https://gerrit.osmocom.org/c/osmo-bsc/+/25298/5/doc/manuals/chapters/power_control.adoc@257 
PS5, Line 257:    rxlev-thresh lower 32 upper 38 <2>
These changes also look unrelated to me. I am not against them, just don't see how could they related to the C/I parameters you're adding. I would CR+2 a separate change, thanks!


https://gerrit.osmocom.org/c/osmo-bsc/+/25298/5/doc/manuals/chapters/power_control.adoc@368 
PS5, Line 368:    ci-avg amr-fr algo osmo-ewma beta 50 <4>
Looks like you wanted to use <6> and <7> here.


https://gerrit.osmocom.org/c/osmo-bsc/+/25298/2/src/osmo-bsc/bts_vty.c 
File src/osmo-bsc/bts_vty.c:

https://gerrit.osmocom.org/c/osmo-bsc/+/25298/2/src/osmo-bsc/bts_vty.c@3068 
PS2, Line 3068: Channel Type (E)GPRS
> So far, I'm just adding it for completeness when doing all the monkey-type work, since we got values […]
I would still avoid making this configurable in the VTY unless it's actually implemented.


https://gerrit.osmocom.org/c/osmo-bsc/+/25298/5/src/osmo-bsc/bts_vty.c 
File src/osmo-bsc/bts_vty.c:

https://gerrit.osmocom.org/c/osmo-bsc/+/25298/5/src/osmo-bsc/bts_vty.c@3227 
PS5, Line 3227: lower_cmp_p, lower_cmp_n
Not fixed: upper_cmp_p, upper_cmp_n.


https://gerrit.osmocom.org/c/osmo-bsc/+/25298/5/src/osmo-bsc/gsm_data.c 
File src/osmo-bsc/gsm_data.c:

https://gerrit.osmocom.org/c/osmo-bsc/+/25298/5/src/osmo-bsc/gsm_data.c@1201 
PS5, Line 1201: C/I averaging is not yet implemented
As far as I can see, I52eb0558fd7a215a6ee0b2aced189ae4a37d8a22 implements it in osmo-bts. So I guess it makes sense to enable EWMA with some alpha by default? Or at least remove this comment?



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Gerrit-Project: osmo-bsc
Gerrit-Branch: master
Gerrit-Change-Id: I7e76ec47b323d469f777624b74b08752d1f5584f
Gerrit-Change-Number: 25298
Gerrit-PatchSet: 5
Gerrit-Owner: pespin <pespin at sysmocom.de>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: fixeria <vyanitskiy at sysmocom.de>
Gerrit-Reviewer: laforge <laforge at osmocom.org>
Gerrit-Comment-Date: Fri, 03 Sep 2021 16:16:17 +0000
Gerrit-HasComments: Yes
Gerrit-Has-Labels: Yes
Comment-In-Reply-To: pespin <pespin at sysmocom.de>
Comment-In-Reply-To: fixeria <vyanitskiy at sysmocom.de>
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