Pulse or digital communications – Transmitters – Angle modulation
Reexamination Certificate
2005-05-18
2008-12-09
Liu, Shuwang (Department: 2611)
Pulse or digital communications
Transmitters
Angle modulation
C375S295000, C327S291000, C332S106000, C341S020000, C341S173000
Reexamination Certificate
active
07463698
ABSTRACT:
A transmitter has a peak reducing part carrying out peak reduction processing; an OFDM signal generating part generating an OFDM signal from an input information signal; a cyclic shifting part generating a signal obtained from cyclically shifting the OFDM signal; and an adding part adding the OFDM signal and the cyclically shifted signal together.
REFERENCES:
patent: 2002/0181390 (2002-12-01), Mody et al.
patent: 2004/0160893 (2004-08-01), Park et al.
Cyclic shifting and time inversion of partial transmit sequences to reduce the peak-to-average power ratio in OFDM Hill, G.; Faulkner, M.; Singh, J.; Personal, Indoor and Mobile Radio Communications, 2000. PIMRC 2000. The 11th IEEE International Symposium on vol. 2, Sep. 18-21, 2000 pp. 1256-1259 vol. 2.
Xiaodong Li, et al., “Effects of Clipping and Filtering on the Performance of OFDM”, IEEE Communications Letters, vol. 2, No. 5, May 1998, pp. 131-133.
Leonard J. Cimini, Jr., et al., “Peak-to-Average Power Ratio Reduction of an OFDM Signal Using Partial Transmit Sequences”, IEEE Communications Letters, vol. 4, No. 3, Mar. 2000, pp. 86-88.
G.R. Hill, et al., “Reducing the peak-to-average power ratio in OFDM by cyclically shifting partial transmit sequences”, Electronics Letters, vol. 36, No. 6, Mar. 16, 2000, pp. 560-561.
Kazumi Miyashita, et al., “Eigenbeam-Space Division Multiplexing (E-SDM) in a MIMO Channel”, The Institute of Electronics, Information and Communication Engineers, Technical Report of IEICE, RCS2002-53, (May 2002), pp. 13-18, (with English Abstract).
Asai Takahiro
Fujii Hiromasa
Shen Jiyun
Suda Hirohito
Liu Shuwang
Neff Michael R
NTT DoCoMo Inc.
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
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