diff options
| author | Tom Tsou <tom.tsou@ettus.com> | 2016-07-01 00:10:31 -0700 |
|---|---|---|
| committer | Harald Welte <laforge@gnumonks.org> | 2016-07-28 06:18:12 +0000 |
| commit | dab54b91783d5197e0129de950a705e2da2a4cb9 (patch) | |
| tree | 12a5bbac7761cfa734c3cd617cc2be347991eb4a /src/osmo-bts-trx/gsm0503_coding.c | |
| parent | 9407e644b0246fadec74a45faeedb570a0c04c6b (diff) | |
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. Length is explicitly used as a identifier for
8-PSK vs. GMSK modulated sequences.
Change-Id: I90b46b46b11b6ce280e7f8232d5a2fccec2d4f18
Signed-off-by: Tom Tsou <tom.tsou@ettus.com>
Diffstat (limited to 'src/osmo-bts-trx/gsm0503_coding.c')
| -rw-r--r-- | src/osmo-bts-trx/gsm0503_coding.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/osmo-bts-trx/gsm0503_coding.c b/src/osmo-bts-trx/gsm0503_coding.c index fd863851..c601cac3 100644 --- a/src/osmo-bts-trx/gsm0503_coding.c +++ b/src/osmo-bts-trx/gsm0503_coding.c @@ -1353,7 +1353,7 @@ int pdtch_encode(ubit_t *bursts, uint8_t *l2_data, uint8_t l2_len) gsm0503_xcch_burst_map(&iB[i * 114], &bursts[i * 116], hl_hn + i*2, hl_hn + i*2 + 1); - return 0; + return GSM0503_GPRS_BURSTS_NBITS; } |