Amplifier with adaptive output allocation and method thereof

Details Amplifier with adaptive output allocation and method thereof Amplifier with adaptive output allocation and method thereof

1996-03-29

1998-07-07

Eisenzopf, Reinhard J.

Telecommunications

Transmitter

Plural separate transmitters or channels

455 17, 455126, 330129, 330124R, H04B 102

Patent

active

057783071

ABSTRACT:
An amplifier with adaptive output capacity allocation (201) including a processor (203), coupled to a signal, for examining the signal to determine a first capacity requirement and a second capacity requirement, and an amplifier (213), coupled to the processor and the signal, for processing the signal in accordance with the first capacity requirement and the second capacity requirement to provide an output signal thus maximizing power out of the amplifier given incoming signal conditions. A corresponding method of dynamically allocating spectral power in a transmitter having a peak power capability for transmitting information on a plurality of subcarriers during a plurality of predetermined sequential frame periods includes sampling the information (503) corresponding to a frame period to obtain a subcarrier envelope amplitude corresponding to each of the plurality of subcarriers; summing these subcarrier envelope amplitudes (505) to obtain a total envelope amplitude; examining the total envelope amplitude (507) to identify a maximum total envelope amplitude; and setting for the frame period a gain (509) in the transmitter such that the maximum total envelope amplitude substantially produces the peak power capability.

REFERENCES:
patent: 5302914 (1994-04-01), Arntz et al.
patent: 5410729 (1995-04-01), Kumagai et al.
patent: 5530920 (1996-06-01), Takeda

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