Method and apparatus for transmit power modulation in a...

Telecommunications – Transmitter – Power control – power supply – or bias voltage supply

Reexamination Certificate

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Details

C455S113000, C455S101000, C455S126000

Reexamination Certificate

active

06873831

ABSTRACT:
An apparatus according to one embodiment of the invention includes a transmitter. The transmitter receives an RF signal and produces at least two modulated signals based on the RF signal. Each of the modulated signals is coupled to a respective antenna. The combined radiation pattern of the antennas varies in an angular direction over time. In a system according to one embodiment of the invention, a base station including such an apparatus receives channel quality indications from mobile units and schedules data transmissions to the mobile units accordingly.

REFERENCES:
patent: 5305353 (1994-04-01), Weerackody
patent: 0572171 (1993-12-01), None
patent: 0755130 (1997-01-01), None
patent: 0755130 (1997-01-01), None
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patent: 1083679 (2001-03-01), None
patent: 1083679 (2001-03-01), None
patent: 1187385 (2002-03-01), None
patent: 9506365 (1995-03-01), None
patent: 0219565 (2002-03-01), None
patent: WO 0219565 (2002-03-01), None
Viswanath, et al. “Opportunistic Beamforming Using Dumb Antennas”, pp. 1-40, Sep. 11, 2001.

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