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1. (WO2017196451) ENHANCED LIST DECODING OF TAIL BITING CONVOLUTIONAL CODES

Pub. No.:    WO/2017/196451    International Application No.:    PCT/US2017/023875
Publication Date: Fri Nov 17 00:59:59 CET 2017 International Filing Date: Fri Mar 24 00:59:59 CET 2017
IPC: H03M 13/41
Applicants: QUALCOMM INCORPORATED
Inventors: LIN, Jamie Menjay
YANG, Yang
SORIAGA, Joseph Binamira
JIANG, Jing
JI, Tingfang
Title: ENHANCED LIST DECODING OF TAIL BITING CONVOLUTIONAL CODES
Abstract:
Certain aspects of the present disclosure relate to techniques and apparatus for enhanced decoding, for example, by providing a multi-phase tail biting convolutional code (TBCC) decoding algorithm. An exemplary method generally includes obtaining, via a wireless medium, a codeword encoded with a TBCC encoding scheme, generating metrics for candidate paths through trellis stages of a decoder, propagating information from at least one of the trellis stages to a later trellis stage, while generating the metrics, selecting a set of the candidate paths based on the propagated information, and decoding the encoded codeword by evaluating the selected set of candidate paths based, at least in part, on the generated metrics. Other aspects, embodiments, and features are claimed and described.