Method of estimating reliability of decoded message bits

Details Method of estimating reliability of decoded message bits Method of estimating reliability of decoded message bits

2007-04-10

2007-04-10

Dildine, R. Stephen (Department: 2133)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital data error correction

C714S795000

Reexamination Certificate

active

10847285

ABSTRACT:
A method of estimating the reliability of decoded message bits in a digital communications system is proposed. Message and tail bits are coded and transmitted across a communications channel. The coded message and tail bits are then decoded and it is determined that the decoded message bits have no error when the decoded tail bits have at least one error.

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patent: WO 2004/019498 (2004-03-01), None
“Optimum Decoding of Convolutional Codes—The Viterbi Algorithm,” Chapter 8, Block and Convolutional Channel Codes, Digital Communications, John G. Proakis; McGraw-Hill, 3rdEdition; pp. 483-489.
“Multiplexin and Channel Coding (FDD),” RELEASE 5, 3GPP Technical Specification, TS 25.212 V5.2.0 (Sep. 2002); pp. 62-66.
“Viterbi Decoding Algorithm for Convolutional Codes with Repeat Request,” Hirosuke Yamamoto and Kohji Itoh; IEEE Transactions on Information Theory; vol. IT-26, No. 5; Sep. 1980; p. 540-547.

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