Pulse or digital communications – Receivers – Particular pulse demodulator or detector
Reexamination Certificate
2006-05-23
2010-10-19
Wang, Ted M (Department: 2611)
Pulse or digital communications
Receivers
Particular pulse demodulator or detector
C375S316000, C375S324000, C375S346000
Reexamination Certificate
active
07817753
ABSTRACT:
A reception quality estimating apparatus, a wireless communication system and a reception quality estimating method wherein the communication qualities in a case where different communication schemes are used to have communication can be artificially estimated without switching the communication schemes to be used for the communication. A wireless communication apparatus (100) comprises a reception processing part (110), an artificially decoded error estimating part (120), and an upper-order layer processing part (130). An orthogonal vector data sequence (152), which is generated by a demodulating part (111) from a received signal (150), for each symbol in the current modulation scheme is used to artificially generate a likelihood metric value (155) obtained in a case of using a second communication scheme, which has a larger number of modulation multi-values than the current communication scheme, to perform a signal point arrangement. An artificially decoding part (122) then uses the likelihood metric value (155) to perform an artificial error correction decoding process, a result of which (156) is then subjected to an error detecting process.
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PCT International Search Report dated Jul. 27, 2006.
Shuichi Sasaoka, “Communication Mobile,” Ohmsha Ltd., May 20, 2001, pp. 103-126, with partial English translation.
Abe Katsuaki
Sakamoto Takenori
Dickinson Wright PLLC
Panasonic Corporation
Wang Ted M
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