diff options
| author | Pau Espin Pedrol <pespin@sysmocom.de> | 2021-03-05 18:54:01 +0100 |
|---|---|---|
| committer | Pau Espin Pedrol <pespin@sysmocom.de> | 2021-03-08 10:39:31 +0100 |
| commit | 3cba94d70ed046ef1f58e36080ad95fa5cb8de5f (patch) | |
| tree | 46c2ec10b8b543e44536234995720209cca55454 /src | |
| parent | 58fdc54a7fdf322fd2711ab018665ebba81ae7a0 (diff) | |
pdch: Silently ignore DATA.ind with len=0
Since recently (see Depends below), BTS side submits DATA.ind with len=0
to announce nothing was received on that UL block FN. This will allow
osmo-pcu track time more accurately, and use this information to quickly
find out if a UL block was expected as requested by RRBP or USF poll and
increment counters such as N3101 (finally being able to properly
implement timers such as T3619).
Depends: osmo-bts.git Change-Id I343c7a721dab72411edbca816c8864926bc329fb
Related: OS#5020
Change-Id: I17c28abf63b153448b533971ac5cf2e48daadea8
Diffstat (limited to 'src')
| -rw-r--r-- | src/pdch.cpp | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/pdch.cpp b/src/pdch.cpp index 46d1cae2..26fd6a93 100644 --- a/src/pdch.cpp +++ b/src/pdch.cpp @@ -794,6 +794,15 @@ free_ret: int gprs_rlcmac_pdch::rcv_block(uint8_t *data, uint8_t len, uint32_t fn, struct pcu_l1_meas *meas) { + /* No successfully decoded UL block was received during this FN: */ + if (len == 0) { + /* TODO: Here, in the future, it can be checked whether a UL block was expected for: + * - UL/DL TBFs: RRBP poll pending (bts->pollController->expireTimedout) + * - UL TBFs: USF poll pending (we don't store this info in ul_tbf yet) -> inc N3101 (OS#5033) + */ + return 0; + } + enum CodingScheme cs = mcs_get_by_size_ul(len); if (!cs) { bts_do_rate_ctr_inc(bts(), CTR_DECODE_ERRORS); |