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Bug #4036
closedfn-advance and rts-advance seem to do the same thing?
Start date:
06/02/2019
Due date:
% Done:
100%
Spec Reference:
Description
There are two osmo-bts-trx specific settings: fn-advance and rts-advance.
- they seem to do exactly the same thing: Advance the frame number in order to compensate for delays between osmo-trx and osmo-bts-trx
- they seem to be used both only in scheduler_trx.c:trx_sched_fn() within very few lines from each other
- they are simply added together.
In the default configuration, there's 20 frames of fn-advance and 5 frames of rts-advance, accounting for a total advance of 25 frames (of 4.616ms each, totalling to 115.4ms).
The documentation also seems wrong, as it claims rts-advance is specific to the PCU while fn-advance is generic. However, I cannot see any difference between those two. Am I missing something?
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