osmo-bts.git branch master updated. 0.7.0-147-g4e959b2

gitosis at osmocom.org gitosis at osmocom.org
Mon Mar 5 17:44:31 UTC 2018

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The branch, master has been updated
       via  4e959b2aa06c98a8b8cad953d7baac1271f87bf0 (commit)
       via  1ef544ea246a73ef4404cb9622ca41fbe8e0b76b (commit)
       via  4f14804f8a023eff0ce2ac1712dd65383d1e0b96 (commit)
       via  0dfe13700911eb3755628f78a1a9653a34dd2510 (commit)
       via  53bdf4d949433a5d69ff2bdd2f74746e93195b88 (commit)
       via  10aa1cd6f6e9a10741965991ecba2b0939e50542 (commit)
      from  8a28868b29b4480f248d64728ebb08af8274fda9 (commit)

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commit 4e959b2aa06c98a8b8cad953d7baac1271f87bf0
Author: Philipp Maier <pmaier at sysmocom.de>
Date:   Thu Mar 1 15:46:59 2018 +0100

    l1_tch: remove dead code
    the file l1_tch.c in the octphy spcific code has its root in the
    tch.c file of sysmobts. It contains some sysmobts specific ifdefs
    which enclose dead code.
    - Remove the sysmobts specif ifdefs and the dead code
    Change-Id: I33f3e0fd293ca8387fddf5ed20f642621e9680de


commit 1ef544ea246a73ef4404cb9622ca41fbe8e0b76b
Author: Vadim Yanitskiy <axilirator at gmail.com>
Date:   Mon Mar 5 20:56:20 2018 +0700

    common/l1sap.c: limit the minimal ToA for RACH bursts
    In general, RACH bursts should not arrive with negative offset.
    Let's limit early signal arrival up to 2 symbols, otherwise it
    is most likely noise, interference or a ghost.
    TTCN-3 test case: Icccc88545ed3aabd6da28a40599a8a77d1de477d
    Change-Id: I662294fe3136cf7a259be13816a3e63f7db9a948


commit 4f14804f8a023eff0ce2ac1712dd65383d1e0b96
Author: Vadim Yanitskiy <axilirator at gmail.com>
Date:   Mon Mar 5 20:43:02 2018 +0700

    common/l1sap.c: perform noise / ghost filtering for handover RACH
    For some reason, the noise / ghost filtering was performed for
    normal RACH requests, but not for handover RACH requests. There
    are also ghost RACH, interference and noise possible, so let's
    extend the filtering coverage.
    Change-Id: I94fc15835280d624780200dadc4418210bf565ff


commit 0dfe13700911eb3755628f78a1a9653a34dd2510
Author: Vadim Yanitskiy <axilirator at gmail.com>
Date:   Mon Mar 5 20:29:47 2018 +0700

    common/l1sap.c: clean up noise / ghost RACH filtering
    It makes sense to combine both existing BER (Bit Error Rate) and
    ToA (Timing of Arrival) checks into a separate funcition, so
    this code may be also used for handover RACH.
    Change-Id: I1ddda238d5212a88a3dd5c4fc5dfcfea018151bd


commit 53bdf4d949433a5d69ff2bdd2f74746e93195b88
Author: Vadim Yanitskiy <axilirator at gmail.com>
Date:   Mon Mar 5 20:03:06 2018 +0700

    common/l1sap.c: increment valid RACH counter after all checks
    Previously, the number of RACH slots with valid non-handover RACH
    burst was incremented between both BER (Bit Error Rate) and ToA
    (Timing of Arrival) checks. So, if a RACH burst passed the BER
    check, but was dropped by ToA check, the counter of valid RACH
    requests could be increased anyway.
    Change-Id: I31594a8c5dce1f42226ced5b2dc8778152b3d829


commit 10aa1cd6f6e9a10741965991ecba2b0939e50542
Author: Vadim Yanitskiy <axilirator at gmail.com>
Date:   Mon Mar 5 19:40:55 2018 +0700

    common/l1sap.c: increase the BTS_CTR_RACH_DROP in RACH BER check
    The BTS_CTR_RACH_DROP counter is being increased in case if a RACH
    request is ignored due to exceeding ToA value, but remains untouched
    in case of exceeding BER (Bit Error Rate). Let's fix this.
    Change-Id: Ia02e781d6c47d9d8012a4c8846fe4b731aab74d7


Summary of changes:
 src/common/l1sap.c           | 87 ++++++++++++++++++++++++++------------------
 src/osmo-bts-octphy/l1_tch.c | 64 --------------------------------
 2 files changed, 52 insertions(+), 99 deletions(-)

Osmocom BTS-side code (Abis, scheduling, ...)

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