osmo-bts.git branch ttsou/egprs created. 0.4.0-209-g7a19ec2

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gitosis at osmocom.org gitosis at osmocom.org
Wed Jul 6 22:37:23 UTC 2016


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The branch, ttsou/egprs has been created
        at  7a19ec22c5700f578fef9d583e18e90eff03b160 (commit)

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http://cgit.osmocom.org/osmo-bts/commit/?id=7a19ec22c5700f578fef9d583e18e90eff03b160

commit 7a19ec22c5700f578fef9d583e18e90eff03b160
Author: Tom Tsou <tom.tsou at ettus.com>
Date:   Fri Jul 1 00:10:31 2016 -0700

    trx: Enable EGPRS handling through burst lengths
    
    Existing interfaces are coded with the implicit expectation of using
    a burst sequence length of 148, which is constant with GSM and GPRS.
    That changes with EGPRS, where the burst length may be 444 due to
    the use of 8-PSK instead of GMSK modulation.
    
    Setup the interface to accept and return a length value with the
    burst sequence. This allows 444 length bit vectors to/from the
    EGPRS decoder/encoder. Length is explicitly used as a identifier for
    8-PSK vs. GMSK modulated sequences.
    
    Change-Id: I90b46b46b11b6ce280e7f8232d5a2fccec2d4f18
    Signed-off-by: Tom Tsou <tom.tsou at ettus.com>

http://cgit.osmocom.org/osmo-bts/commit/?id=de2e5798e23e023ad15c6179ed2b102f44b8db4b

commit de2e5798e23e023ad15c6179ed2b102f44b8db4b
Author: Tom Tsou <tom.tsou at ettus.com>
Date:   Wed Jul 6 13:29:55 2016 -0700

    trx: Add EGPRS coding and decoding procedures
    
    Handles uplink decoding and downlink encoding procedures for MCS 1-9.
    Includes Type 1, 2, and 3 headers and tables from 3GPP TS 44.060 in
    order to independently recover coding and puncturing scheme (CPS)
    parameters for each coded message.
    
    Change-Id: I0f059ae34c6f36179553cbc972f8becf8179eb55
    Signed-off-by: Tom Tsou <tom.tsou at ettus.com>

http://cgit.osmocom.org/osmo-bts/commit/?id=2d1cf4ed327e10c9f6761a99b39124e0676faaa3

commit 2d1cf4ed327e10c9f6761a99b39124e0676faaa3
Author: Tom Tsou <tom.tsou at ettus.com>
Date:   Wed Jul 6 13:29:25 2016 -0700

    trx: Add EGPRS tables, sequences, and mappings
    
    Includes EGPRS specific convolutional codes, interleaving tables
    and functions, burst mappings, training sequences, and parity
    checks from 3GPP TS 44.060 needed to handle MCS codings 1-9.
    
    Change-Id: Ie270398dd7a72f282ba53e646853d8de1eabee93
    Signed-off-by: Tom Tsou <tom.tsou at ettus.com>

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