21 Jul
2016
21 Jul
'16
8:50 a.m.
Hi Max,
On Wed, Jul 20, 2016 at 06:50:24PM +0200, Max wrote:
Notice that while PDTCH is activated for both UL and
DL, the PTCCH is
only activated for DL.
As far as I've understood continuous TA procedure I've got to have PTCCH
activated in both directions. The problem is that I have troubles
locating the code which triggers the activation above.
from osmo-bts/src/osmo-bts-sysmo/oml.c:
static const struct sapi_dir pdtch_sapis[] = {
{ GsmL1_Sapi_Pdtch,»····GsmL1_Dir_TxDownlink },
{ GsmL1_Sapi_Pdtch,»····GsmL1_Dir_RxUplink },
{ GsmL1_Sapi_Ptcch,»····GsmL1_Dir_TxDownlink },
{ GsmL1_Sapi_Prach,»····GsmL1_Dir_RxUplink },
#if 0
{ GsmL1_Sapi_Ptcch,»····GsmL1_Dir_RxUplink },
{ GsmL1_Sapi_Pacch,»····GsmL1_Dir_TxDownlink },
#endif
I don't know exactly why it is commented out, probably because itw as
simply not used at the time?
--
- Harald Welte <laforge(a)gnumonks.org> http://laforge.gnumonks.org/
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