Telecommunications – Receiver or analog modulated signal frequency converter – Frequency or phase modulation
Reexamination Certificate
2007-10-26
2010-12-07
Trinh, Sonny (Department: 2618)
Telecommunications
Receiver or analog modulated signal frequency converter
Frequency or phase modulation
C455S065000, C455S205000, C455S506000
Reexamination Certificate
active
07848722
ABSTRACT:
A wireless transmission apparatus that can accurately select an optimal modulation scheme on a per block basis in a multi-carrier communication system in which block division of subcarriers and adaptive modulation are performed. In this wireless transmission apparatus, a propagation path characteristics acquisition section acquires the average SNR and SNR variance for each block, which are estimated by a wireless reception apparatus, using received signals inputted from a reception RF section and outputs these to an assignment section. The assignment section selects a modulation scheme for each block based on the average SNR and SNR variance of each block inputted from the propagation path characteristics acquisition section and modulation sections modulate multi-carrier signals included in each block, with the modulation scheme for each block selected by the assignment section.
REFERENCES:
patent: 5434883 (1995-07-01), Kimoto et al.
patent: 6167031 (2000-12-01), Olofsson et al.
patent: 6236676 (2001-05-01), Shaffer et al.
patent: 6359934 (2002-03-01), Yoshida
patent: 6473506 (2002-10-01), Hook et al.
patent: 6603734 (2003-08-01), Oksanen
patent: 6628667 (2003-09-01), Murai et al.
patent: 6738646 (2004-05-01), Miyoshi et al.
patent: 6859466 (2005-02-01), Chen et al.
patent: 7003050 (2006-02-01), Matsumoto et al.
patent: 7136427 (2006-11-01), Niida et al.
patent: 7206279 (2007-04-01), Taga et al.
patent: 7212542 (2007-05-01), Khawand
patent: 7215927 (2007-05-01), Miyoshi
patent: 7272190 (2007-09-01), Blankenship et al.
patent: 2002/0061076 (2002-05-01), Seki
patent: 2003/0060165 (2003-03-01), Horisaki
patent: 2003/0185179 (2003-10-01), Inogai
patent: 2004/0037262 (2004-02-01), Tanada
patent: 2004/0076172 (2004-04-01), Sano
patent: 2004/0081260 (2004-04-01), Matsuaka
patent: 2006/0198293 (2006-09-01), Nishio et al.
patent: 2008/0132172 (2008-06-01), Yoshii et al.
patent: 2008/0259854 (2008-10-01), Sumasu
patent: 1 176 750 (2002-01-01), None
patent: 11-103425 (1999-04-01), None
patent: 11275164 (1999-10-01), None
patent: 2001103032 (2001-04-01), None
patent: 2002101043 (2002-04-01), None
patent: 2002-158631 (2002-05-01), None
patent: 2002246958 (2002-08-01), None
patent: 2003-046474 (2003-02-01), None
patent: 2003069531 (2003-03-01), None
patent: 2003110517 (2003-04-01), None
patent: 2003169036 (2003-06-01), None
patent: 2003-198651 (2003-07-01), None
PCT International Search Report dated Nov. 9, 2004.
H. Matsuoka, et al.; “An Analysis on the Performance of Variable Symbol Rate and Modulation Level Adaptive Modulation System,” Technical Report of IEICE, RCS94-64, Sep. 1994, The Institute of Electronics Information and Communidation Engineer, with English Abstract, pp. 31-36.
Y. Hara, et al.; “MC-CDM System for Packet Communications Using Frequency Scheduling,” Technical Report of IEICE, NS2002-1001, RCS2002-129, Jul. 2002, The Institute of Electronics, Information and Communication Engineers, with English Abstract, pp. 61-66.
S. Muneta et al.; “Performance of New Frequency-Domain Link Adaption Scheme for OFDM systems,” Technical Report of IEICE, DSP99-166, SAT99-121, RCS99-171, Jan. 2000, The Institute of Electronics, Information and Communication Engineers, pp. 99-106.
Japanese Office Action dated Aug. 11, 2009.
K. Tsukakoshi, et al., “Performance of MC-CDMA Adaptive Data-modulation System in Fading-channel Environment,” Technical Report IEICE, RCS2001-178. Nov. 2001, vol. 101, No. 437, pp. 7-12, with partial English translation.
Office Action dated Dec. 15, 2009, in the corresponding Japanese Patent Application.
Office Action in the corresponding Japanese Patent Application dated May 1, 2010.
Cheng Jun
Miyoshi Ken'ichi
Dickinson Wright PLLC
Panasonic Corporation
Trinh Sonny
LandOfFree
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