Pulse or digital communications – Systems using alternating or pulsating current – Plural channels for transmission of a single pulse train
Reexamination Certificate
2005-09-08
2010-11-02
Lugo, David B (Department: 2611)
Pulse or digital communications
Systems using alternating or pulsating current
Plural channels for transmission of a single pulse train
C375S297000, C455S127200
Reexamination Certificate
active
07826543
ABSTRACT:
The present invention relates to a mobile station of an OFDMA system and a transmit power control method thereof. The mobile station includes a modulator, a variable gain amplifier, a gain controller, and a power controller. The modulator modulates transmit data according to the number of allocated subchannels, and the variable gain amplifier amplifies the transmit data. The gain controller controls a gain of the transmit data inputted to the variable gain amplifier according to a subchannel gain value corresponding to the number of subchannels. The power controller calculates a power control gain for controlling power of the transmit data except the subchannel gain value based on the signal received from the base station and outputs the power control gain to the variable gain amplifier.
REFERENCES:
patent: 6240071 (2001-05-01), Willenegger et al.
patent: 6654358 (2003-11-01), Park et al.
patent: 6690944 (2004-02-01), Lee et al.
patent: 6795426 (2004-09-01), Raleigh et al.
patent: 7333784 (2008-02-01), Jin et al.
patent: 2001/0010684 (2001-08-01), Willenegger et al.
patent: 2002/0145968 (2002-10-01), Zhang et al.
patent: 1020040054844 (2002-12-01), None
patent: 1020040028490 (2004-04-01), None
patent: WO 02/49305 (2002-06-01), None
Didem Kivanc et al.; “Subcarrier Allocation and Power Control for OFDMA”; 2000 IEEE; pp. 147-151; Department of Electrical Engineering, University of Washington, Seattle, Washingtong.
Kim Dae-Ho
Park Youn-Ok
Electronics and Telecommunications Research Institute
Hanaro Telecom, Inc.
KT Corporation
KT-Freetel Co., Ltd.
Lugo David B
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