5 Jul
2016
5 Jul
'16
11:43 p.m.
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the project "Osmocom BTS-side code (Abis, scheduling, ...)".
The branch, users/ttsou/egprs has been created
at d044f97177d36a2286ebd19ebd7a280c03265e1a (commit)
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http://cgit.osmocom.org/osmo-bts/commit/?id=d044f97177d36a2286ebd19ebd7a280…
commit d044f97177d36a2286ebd19ebd7a280c03265e1a
Author: Tom Tsou <tom.tsou(a)ettus.com>
Date: Fri Jul 1 00:10:31 2016 -0700
trx: Enable EGPRS handling through burst lengths
Existing interfaces are coded with the implicit expectation of using
a burst sequence length of 148, which is constant with GSM and GPRS.
That changes with EGPRS, where the burst length may be 444 due to
the use of 8-PSK instead of GMSK modulation.
Setup the interface to accept and return a length value with the
burst sequence. This allows 444 length bit vectors to/from the
EGPRS decoder/encoder.
Change-Id: I90b46b46b11b6ce280e7f8232d5a2fccec2d4f18
Signed-off-by: Tom Tsou <tom.tsou(a)ettus.com>
http://cgit.osmocom.org/osmo-bts/commit/?id=c16ea0d89988caee4a50d8d34874ed5…
commit c16ea0d89988caee4a50d8d34874ed5ca98d7aab
Author: Tom Tsou <tom.tsou(a)ettus.com>
Date: Thu Jun 30 23:02:24 2016 -0700
trx: Add EGPRS coding support
Add convolutional codes, interleaving, burst mapping, training
sequences, and necessary header parsing from 3GPP TS 44.060 to
handle EGPRS MCS codings from 1-9.
Change-Id: Ie464f6e5099c3c03f15e7bf587f3fcde7eaa7a25
Signed-off-by: Tom Tsou <tom.tsou(a)ettus.com>
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Osmocom BTS-side code (Abis, scheduling, ...)