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| author | Andreas Eversberg <jolly@eversberg.eu> | 2023-11-24 17:32:31 +0100 |
|---|---|---|
| committer | fixeria <vyanitskiy@sysmocom.de> | 2023-12-06 16:33:00 +0000 |
| commit | bc6cc67115821fd86ec4c6cd06d8b1e0ce356a85 (patch) | |
| tree | 97dd1f2e74bc6986f2d79790b97b63586a152079 /tests/power | |
| parent | bc4ca18a31fce0e41b0257cfb6fcd749d56b0b38 (diff) | |
Transmit invalid AMR speech blocks instead of dummy FACCH
Every BTS needs to have some graceful handling for the scenario
where it is time to send out a speech frame on TCH DL, but there is
no frame to be sent. One possible solution is to transmit dummy
FACCH, but this option is unattractive for TCH/AHS where FACCH
displaces two speech frames rather than one. A more elegant solution
is to emit a speech frame that is bad, causing the MS receiver to
declare a BFI condition to trigger substitution and muting procedure.
A bad frame is generated by gsm0503_tch_{afs,ahs}_encode() by setting
the payload length to 0.
Depends: libosmocore.git I82ce2adf995a4b42d1f378c5819f88d773b9104a
Related: OS#6049
Change-Id: I056f379715c91ad968f198e112d363a9009dc1c3
Diffstat (limited to 'tests/power')
0 files changed, 0 insertions, 0 deletions