osmo-bts.git branch master updated. 0.7.0-21-g70c4dc8

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gitosis at osmocom.org gitosis at osmocom.org
Mon Dec 4 13:25:50 UTC 2017


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http://cgit.osmocom.org/osmo-bts/commit/?id=70c4dc8d706973c65e6bf088156f5862f4e036b4

commit 70c4dc8d706973c65e6bf088156f5862f4e036b4
Author: Harald Welte <laforge at gnumonks.org>
Date:   Sat Dec 2 21:34:33 2017 +0100

    osmo-bts-trx: Fix reported frame number during PRIM_INFO_MEAS
    
    The upper layers (L1SAP, the common part of L1) *always* require frame
    numbers in the uplink direction to be reported as the frame number of
    the *first* burst, not the last burst of a given block.
    
    This is particularly important in the case of passing up measurement
    information, as we use this frame number to detect if the measurement
    interval for that specific timeslot has just ended (and hence we must
    process the measurements and send an uplink measurement report to the
    BSC.
    
    Before this patch, the measurement results were reported with the *last*
    frame number, which caused the common/measurement.c code never detect
    the end of a measurement window.
    
    On TS2, tons of the following log messages were observed:
    <0004> measurement.c:199 (bts=0,trx=0,ts=2,ss=0) no space for uplink measurement, num_ul_meas=104
    
    With this patch, it behves as expected:  the measurements of 25 blocks
    (= 100 bursts) are aggregated, after which point the report is computed
    and sent.  Subsequently, num_ul_meas is reset to 0 and the cycle
    restarts.
    
    Related: OS#2329
    Change-Id: I1065ae9c400bb5240a63ab8213aee59aeb9ceeff

-----------------------------------------------------------------------

Summary of changes:
 src/osmo-bts-trx/scheduler_trx.c | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)


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