Power control with space time transmit diversity

Details Power control with space time transmit diversity Power control with space time transmit diversity

2005-12-20

2005-12-20

Nguyen, Hahn (Department: 2662)

Multiplex communications

Communication over free space

Repeater

C370S320000, C370S335000, C370S441000, C455S013400, C455S069000, C455S101000

Reexamination Certificate

active

06977910

ABSTRACT:
A circuit is designed with a measurement circuit (432). The measurement circuit is coupled to receive a first input signal (903) from a first antenna (128) of a transmitter and coupled to receive a second input signal (913) from a second antenna (130) of the transmitter. Each of the first and second signals is transmitted at a first time. The measurement circuit produces an output signal corresponding to a magnitude of the first and second signals. A control circuit (430) is coupled to receive the output signal and a reference signal. The control circuit is arranged to produce a control signal at a second time in response to a comparison of the output signal and the reference signal.

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