FreeCalypso > hg > gsm-net-reveng
view d144/ul-input @ 94:f9ef582c199c
tfo-ut: check in tfo-fr.bin and tfo-efr.bin
Each of these binary files is an extract from MSC-side E1 timeslot
recording in a Nokia TCSM2 TFO session involving a cross-connect
between two TRAU channels. The extracts have been chosen to begin
at the point where the TRAU starts emitting TFO frames, thereby
beginning with a series of TFO frames that contain an embedded
TFO_TRANS message. In each experiment, one of the two cross-connected
TRAU channels emitted two "plain" TFO frames (not containing embedded
TFO messages) in between the initial embedded TFO_TRANS and the
subsequent embedded TFO_REQ_L; this channel was chosen for the
present extracts. Each extract is thus 2560 PCM samples, containing
16 aligned TFO frames: 5 carrying TFO_TRANS, 2 plain, 9 carrying
TFO_REQ_L.
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Tue, 18 Mar 2025 22:56:23 +0000 |
| parents | 4189abdfeaa4 |
| children |
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# This file holds hand-crafted bits that are to be presented to RAA' function # (both the historical hw implementation in Nokia TCSM2 and the planned # sw implementation) as if they came from TCH/F14.4 uplink. # # The objective is to highlight various cases of FPS (framing pattern # substitution) that can occur in the logic of TS 48.020 section 11.2. bits 000000000 bits 001122345 bits 010101010 bits 080808080 bits 101010100 bits f00f00f00 bits f00f0000f bits fff807fff frame 00 bits aaaaaaaaa bits fffffffff bits 1abcd807f bits fff000fff bits f000f000f bits c0c0c0c00 bits c0c0c0c03 bits c0c0c0c07 frame 01 bits 100780300 bits 100000000 bits 0000f0000 bits 008040201 bits 008040200 bits 008040300 bits 700a00568 bits 180222200 frame 10 bits 123456789 bits 050505050 bits 3456789ab bits 024abcdef bits fffff0000 bits 013670100 bits 013670101 bits 013660101 frame 11