Method and system for blind detection of modulation type

Details Method and system for blind detection of modulation type Method and system for blind detection of modulation type

2006-05-16

2006-05-16

Nguyen, Duc (Department: 2643)

Telecommunications

Receiver or analog modulated signal frequency converter

Frequency or phase modulation

C375S242000, C375S243000, C455S228000

Reexamination Certificate

active

07046975

ABSTRACT:
The invention relates to a method and a receiver for demodulating a modulation symbol in a communication system without knowledge of the modulation constellation employed in a transmitter to modulate this symbol before transmission. According to the method, the invention comprises the steps of interpreting the modulation symbol as a symbol of one of a family of hierarchical modulation constellations, decoding the demodulated symbol using a forward error correction (FEC) technique and demodulating the symbol according to the assumed modulation constellation. Finally, the demodulated symbol is checked for correctness. The receiver comprises of a corresponding interpretation unit, a demodulator and an FEC decoder as well as means for checking the correctness of the demodulated symbol.

REFERENCES:
patent: 4862457 (1989-08-01), Morimoto
patent: 5809083 (1998-09-01), Wright
patent: 5862175 (1999-01-01), Sugiyama et al.
patent: 6069899 (2000-05-01), Foley
patent: 6205188 (2001-03-01), Stott et al.
patent: 6341023 (2002-01-01), Puc
patent: 6400928 (2002-06-01), Khullar et al.
patent: 6463107 (2002-10-01), Lindoff et al.
patent: 6611795 (2003-08-01), Cooper
patent: 6940827 (2005-09-01), Li et al.
patent: 2002/0013135 (2002-01-01), Proctor, Jr.
patent: 2002/0120902 (2002-08-01), Brown
patent: 0822714 (1998-02-01), None
patent: 0822714 (1998-06-01), None
patent: 0848515 (1998-06-01), None
patent: 0944200 (1999-09-01), None
patent: 1011245 (2000-06-01), None
patent: 0984595 (2000-10-01), None
patent: 5218914 (1993-08-01), None
patent: 10117328 (1998-05-01), None
patent: 11239192 (1999-08-01), None
Japanese Office Action dated Dec. 14, 2004 with English translation.
M. Uesugi, et al.: “A Layered Demodulation Scheme for Adaptive Modulation Systems Without Modulation Information Transmission”, Wireless Solution Laboratories, Matsushita Communication Industrial Co., Ltd.; pp. 1-7.

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