It makes no sense to transmit load information if the channel is still
not operational. This solves errors messages seen in osmo-bsc.
Related: OS#4872
Change-Id: I7ddda9776158eed0694df9e458f3f91df90bf674
bts.h refers to struct gsm_bts object, but we still had a bunch of stuff
in bulky gsm_data.* from old days. Let's move stuff where it belongs to
start clean up of gsm_data.
Change-Id: I0a4219e3f64f625ee8b364bf408b8d2bcc8085c5
While we re-set the PCH load counters after every report, we never
actually re-set the RACH load counters. This meant that the
period/window for RACH load averaging would always grow, rather than
being reset every load indication period.
Related: OS#3750
Change-Id: Icd9150ba56d77d031c3cf496c5936c2de52b364c
gsm_bts_role_bts was introduced at a time when we still shared
gsm_data_shared.[ch] between BSC and BTS, and where we then subsequently
needed a BTS-private structure. Since that sharing was abandoned quite
some time ago, we can merge gsm_bts_role_bts into gsm_bts and do away
with the bts/btsb dualism in a lot of the code.
Change-Id: I4fdd601ea873d9697f89a748cc77bcf7c978fa3e
Starting the timer in bts_init() may result in it expiring already
before the load indication period is set via OML. Let's make
load_timer_start() safe to call several times and call it from OML
code.
Change-Id: I295d91413542014aa2507d5f09e01243fc3916fa
Fixes: OS#2991
The total count of RACH or PCH slots should never be zero, as they
constantly increment. However, just as a safeguard, we introduce
an explicit handign to avoid divide-by-zero situations
We now count the total number of RACH slots, the number with rx level
above the busy threshold, and the number of valid access bursts.
This data is used to generate RSL CCCH LOAD INDICATION for the RACH.
This code re-works osmo-bts to add support for the upcoming sysmocom BTS.
It also tries to add some level of abstraction between the generic
part of a BTS (A-bis, RSL, OML, data structures, paging scheduling,
BCCH/AGCH scheduling, etc.) and the actual hardware-specific bits.
The hardware-specific bits are currently only implemented for the sysmocom
femtobts, but should be (re-)added for osmocom-bb, as well as a virtual
BTS for simulation purpose later.
The sysmocom bts specific parts require hardware-specific header files
which are (at least currently) not publicly distributed.
Pau Espin
Martin Hauke
Harald Welte