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authorVadim Yanitskiy <vyanitskiy@sysmocom.de>2022-04-07 20:04:12 +0300
committerVadim Yanitskiy <vyanitskiy@sysmocom.de>2022-04-07 20:36:36 +0300
commitf5b756e484570e74692a7938e025bec4f84743c0 (patch)
tree1e4ef9dd7b8a52c7e9475ed52442d7d6c8a169f8
parent5ce5c7db9b26adc10cc459228aa5372809c47790 (diff)
osmo-bts-trx: rx_tchh_fn(): fix meas reporting in signalling mode
In change [1] I broke measurement reporting for TCH/H in signalling mode. The problem is that in rx_tchh_fn() we started to invalidate the Uplink RSSI for FACCH regardless of the channel mode: speech or signalling. In speech mode, the averaged measurements are carried over by the two BFIs. In signalling mode we send no BFIs, so: * let's use the proper averaging mode S6N6 (not S6N4), and * send the averaged measurements together with the FACCH. This change fixes BTS_Tests.TC_meas_res_sign_tchh[_toa256]. Change-Id: If98aa1f0f7255f20344460bdd07e2c896dd6e56f Fixes: [1] I7902b4709bc3f418174e8373f52e87bb31cdc826 Related: SYS#5853
-rw-r--r--src/osmo-bts-trx/sched_lchan_tchh.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/src/osmo-bts-trx/sched_lchan_tchh.c b/src/osmo-bts-trx/sched_lchan_tchh.c
index a8bdd080..21fb62c9 100644
--- a/src/osmo-bts-trx/sched_lchan_tchh.c
+++ b/src/osmo-bts-trx/sched_lchan_tchh.c
@@ -135,6 +135,8 @@ int rx_tchh_fn(struct l1sched_ts *l1ts, const struct trx_ul_burst_ind *bi)
* also shift buffer by 4 bursts for interleaving */
switch (tch_mode) {
case GSM48_CMODE_SIGN:
+ meas_avg_mode = SCHED_MEAS_AVG_M_S6N6;
+ /* fall-through */
case GSM48_CMODE_SPEECH_V1: /* HR or signalling */
/* Note on FN-10: If we are at FN 10, we decoded an even aligned
* TCH/FACCH frame, because our burst buffer carries 6 bursts.
@@ -259,13 +261,13 @@ int rx_tchh_fn(struct l1sched_ts *l1ts, const struct trx_ul_burst_ind *bi)
/* FACCH */
if (rc == GSM_MACBLOCK_LEN) {
chan_state->ul_ongoing_facch = 1;
- /* In order to provide an even stream of measurement reports, here we
- * intentionally invalidate RSSI, so that this report gets dropped in
- * process_l1sap_meas_data(). The averaged results will still be sent
- * with the first BFI (see below). */
+ /* In order to provide an even stream of measurement reports in *speech*
+ * mode, here we intentionally invalidate RSSI for FACCH, so that this
+ * report gets dropped in process_l1sap_meas_data(). The averaged results
+ * will be sent with the first (see below) and second (see above) BFIs. */
_sched_compose_ph_data_ind(l1ts, fn_begin, bi->chan,
tch_data + amr, GSM_MACBLOCK_LEN,
- 0, /* intentionally invalidate RSSI */
+ tch_mode == GSM48_CMODE_SIGN ? meas_avg.rssi : 0,
meas_avg.toa256, meas_avg.ci_cb, ber10k,
PRES_INFO_UNKNOWN);
ber10k = 0;