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http://cgit.osmocom.org/osmo-pcu/commit/?id=8d555635230033e2bfd80bd1b58ed1a50e5600a3
commit 8d555635230033e2bfd80bd1b58ed1a50e5600a3
Author: Minh-Quang Nguyen <[email protected]>
Date: Wed Nov 1 15:00:08 2017 -0400
PCU: display TA information in TBF stats
Change-Id: I26886224c2ad6d5a29e92203635b8bf7459730a2
http://cgit.osmocom.org/osmo-pcu/commit/?id=1bcfa9aacfef875f21aeb3d6b5bd393b069e4183
commit 1bcfa9aacfef875f21aeb3d6b5bd393b069e4183
Author: Minh-Quang Nguyen <[email protected]>
Date: Wed Nov 1 14:41:37 2017 -0400
PCU: Fix TA adjustment
Promblem:
TA provided from L1 PH-DATA-IND is a relative amount of TA adjustment to
actual TA
being used for given TBF. The current TA update algorithm in PCU simply
applies the relative
amount of TA to given TBF but does not take into account of current TA.
As a result, the PCU will request wrong TA jump for given TBF if the MS is
moving away from
BTS more than 2 km.
Related issue: http://osmocom.org/issues/2611
Fixes:
- The PCU needs increase or decrease current TA of given TBF on receiving
of relative
amount of TA adjustment provided by PH-DATA-IND from L1
- The PCU needs to set absolute TA of given TBF on receiving absolute TA
provided by
PH-RA-IND from L1.
Change-Id: I65212f8203f1a35278890f51db038d689b2493d5
-----------------------------------------------------------------------
Summary of changes:
src/bts.cpp | 56 +++++++++++++++++++++++++++++++-----
src/bts.h | 5 ++--
src/osmo-bts-litecell15/lc15_l1_if.c | 4 +--
src/osmo-bts-sysmo/sysmo_l1_if.c | 4 +--
src/pcu_l1_if.h | 28 ++++++++++++++++++
src/pcu_vty_functions.cpp | 3 +-
6 files changed, 86 insertions(+), 14 deletions(-)
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