Apparatus and method for generating codes in a communication...

Error detection/correction and fault detection/recovery – Pulse or data error handling – Digital data error correction

Reexamination Certificate

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C714S776000

Reexamination Certificate

active

07093184

ABSTRACT:
Disclosed is an apparatus and method for generating a QCTC (Quasi-Complementary Turbo Code) considering a characteristic of a turbo code in a packet communication system or a communication system using an ARQ (Automatic Repeat reQuest) scheme by segmenting a length N of the QCTC into a predetermined number of sections, determining SPIDs (Sub-code Packet Identifications) corresponding to the segmented sections, and specifying one of the SPIDs allocated for initial transmission of the sub-code; calculating a number of remaining symbols represented by N-Fs, where N is a length of the QCTC and Fs is a starting symbol position of the sub-code of the QCTC; determining a last symbol position Ls of the sub-code by comparing the number of the remaining symbols with a length of the sub-code; and sequentially transmitting symbols of the sub-code from the starting symbol position Fs to the last symbol position Ls.

REFERENCES:
patent: 5983384 (1999-11-01), Ross
patent: 6359877 (2002-03-01), Rathonyi et al.
patent: 6877130 (2005-04-01), Kim et al.
3GPP TS 25.212 V3.5.0, 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Multiplexing and channel coding (FDD) (Release 1999), hereafter referred to as 3GPP TS 25.212 V3.5.0.
European Search Report dated Apr. 22, 2003, issued in a counterpart application, namely, Appl. No. 02010476.6.
Nobelen Van R. et al., “An Adaptive Radio Link Protocol with Enhanced Data Rates for GSM Evolution”, IEEE Personal Communications, IEEE Communications Society, vol. 6, No. 1, Feb. 1999, pp. 54-64.
Min Goo Kim, Sang Hyuk Ha; Quasi-Complementary Turbo Codes (QCTC) For Applications In High-Data-Rate Systems; pp. 2381-2385; Modem R&D Team, Telecommunication R&D Center, Samsung Electronics.

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