Error detection/correction and fault detection/recovery – Pulse or data error handling – Digital data error correction
Reexamination Certificate
2005-03-15
2005-03-15
Chase, Shelly A (Department: 2133)
Error detection/correction and fault detection/recovery
Pulse or data error handling
Digital data error correction
Reexamination Certificate
active
06868520
ABSTRACT:
A mobile radio telecommunications system is described in which the same user message is transmitted with forward error correction (FEC) codes on three separate channels to a receiver. The FEC codes for the three signals are different, e.g. different bits are punctured in the first signal compared with the second signal and so on. The receiver includes a plurality of data receivers for extracting the receiver signals as well as a forward error correction decoder for substantially simultaneously decoding the differently forward error correction coded signals. The extracted decoded signals can be used individually or combined in a variety of ways to improve reception.
REFERENCES:
patent: 4447903 (1984-05-01), Sewerinson
patent: 4953197 (1990-08-01), Kaewell, Jr. et al.
patent: 5268909 (1993-12-01), Loebig
patent: 5406563 (1995-04-01), Loebig
patent: 5422647 (1995-06-01), Hirshfield et al.
patent: 5436915 (1995-07-01), Loebig
patent: 5438590 (1995-08-01), Tzukerman et al.
patent: 5483668 (1996-01-01), Malkamaki et al.
patent: 5577047 (1996-11-01), Persson et al.
patent: 5657325 (1997-08-01), Lou
patent: WO 0028692 (2000-05-01), None
Berrou et al., Near shannon limit error-correcting coding and decoding: Turbo-codes (1), 1993, IEEE, p. 1064-1070.*
Sakai, “Soft-Decision Viterbi Decoding with Diversity Combining for Multi-Beam Mobile Satellite Communication Systems”, IEEE Journal on Selected area in Comminications, vol. 15, No. 2, Feb., 1995, pp. 285-290.
Benelli, “Two New Coding Techniques for Diversity Communication Systems”, IEEE Transactions on Communications, vol. 38, No. 9, Sep. 1, 1990, pp. 1530-1538.
Matsumoto, “Combined Convolutional Coding/Diversity Reception for QDPSK Land Mobile Radio”, IEICE Transactions,, vol. E74, No. 6, Jun. 1, 1991, pp. 1922-1530.
Barnes & Thornburg LLP
Chase Shelly A
Nortel Networks Limited
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