Error detection/correction and fault detection/recovery – Pulse or data error handling – Digital data error correction
Reexamination Certificate
2006-06-20
2006-06-20
Torres, Joseph D. (Department: 2133)
Error detection/correction and fault detection/recovery
Pulse or data error handling
Digital data error correction
C714S794000
Reexamination Certificate
active
07065701
ABSTRACT:
A method for iteratively decoding a block turbo code includes: receiving a signal frame formed of a product code obtained by serially concatenating block codes; forming a reliability array for signal demodulation and initializing extrinsic reliability information; performing a complexity-reduced soft decision output Viterbi decoding algorithm for all of the codewords existing on a current axis and calculating extrinsic reliability using soft decision output information output as a result of the decoding; checking whether an iterative decoding completion condition is satisfied, and outputting a decoded value and terminating an iterative decoding process when the condition is satisfied; and normalizing reliability information when the condition is not satisfied, performing reliability equalization, and repeating the decoding process for a next axis.
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patent: 2001-19469 (2001-03-01), None
Stirling-Gallacher, R.A.; Performance of sub-optimal normalisation schemes for a turbo decoder using the soft output Viterbi algorithm; The 11th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, Sep. 18-21, 2000, pp.: 888-.
Hagenauer, J.; Papke, L.; Decoding “turbo”-codes with the soft output Viterbi algorithm (SOVA), Proceedings IEEE International Symposium on Information Theory, Jun. 27-Jul. 1, 1994 pp.: 164.
Hagenauer, J.; Offer, E.; Papke, L.; Iterative decoding of binary block and convolutional codes, IEEE Transactions on Information Theory, vol. 42, Issue 2, Mar. 1996 pp. 429-445.
Kim Soo-young
Lee Ho-Jin
Yang Woo-Seok
Electronics and Telecommunications Research Institute
Mayer Brown Rowe & Maw LLP
Torres Joseph D.
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