diff options
| author | Harald Welte <laforge@gnumonks.org> | 2012-11-20 10:13:44 +0100 |
|---|---|---|
| committer | Harald Welte <laforge@gnumonks.org> | 2012-11-20 10:13:44 +0100 |
| commit | 73a809e57b8a531b9b8a33b6841ed3df2ea22620 (patch) | |
| tree | 76effaeb610b2394769991614fd54e5802e292ab /src/host/layer23/src/mobile/gsm322.c | |
| parent | 2879e77bd3720f261330dad2ef7f14d6a0988421 (diff) | |
Tell L1CTL_FBSB_REQ the expected received signal level
As Dieter points out, this drastically improves the resiliance to high
receive levels on the C155. We cannot blindly assume a received signal
level of -85 dBm if the BTS is 2m away and we actually receive -40 dBm.
This patch extends the L1CTL_FBSB_REQ data structure in layer 1 with the
respective field, as well as the l1ctl_tx_fbsb_req() API function called
from the various layer23 apps.
"mobile" and "bcch_scan" already did a PM request and thus know the
expected signal power. "ccch_scan" and "cbch_sniff" apparently don't
do, so the -85 dBm constant is now hardcoded into the host-side source
code there, and should probably be fixed in a follow-up patch.
Diffstat (limited to 'src/host/layer23/src/mobile/gsm322.c')
| -rw-r--r-- | src/host/layer23/src/mobile/gsm322.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/host/layer23/src/mobile/gsm322.c b/src/host/layer23/src/mobile/gsm322.c index 2201a1b6..273f9db2 100644 --- a/src/host/layer23/src/mobile/gsm322.c +++ b/src/host/layer23/src/mobile/gsm322.c @@ -491,7 +491,8 @@ static int gsm322_sync_to_cell(struct gsm322_cellsel *cs, l1ctl_tx_reset_req(ms, L1CTL_RES_T_FULL); return l1ctl_tx_fbsb_req(ms, cs->arfcn, L1CTL_FBSB_F_FB01SB, 100, 0, - cs->ccch_mode); + cs->ccch_mode, + cs->list[cs->arfci].rxlev); } /* this is called whenever the serving cell is unselectied */ |