Spread spectrum radiotelephone having adaptive transmitter gain

Details Spread spectrum radiotelephone having adaptive transmitter gain Spread spectrum radiotelephone having adaptive transmitter gain

1994-09-09

1996-08-20

Chin, Stephen

Pulse or digital communications

Transmitters

375205, 375297, 375302, 375345, 455 89, 455127, 4552341, 330129, H04L 2704

Patent

active

055486169

ABSTRACT:
This invention teaches a method, and circuits that operate in accordance with the method, for adaptively controlling the transmitted power of a CDMA transmitter (50, 102). The method includes the steps of: (a) presetting a register, such as a counter (112), with an estimate of a maximum transmitter gain signal, the counter having an count output that is a representation of a maximum transmitter gain signal (TX max); (b) deriving a transmitter gain signal (TX gain) from a received CDMA signal; (c) comparing TX max to TX gain and, if TX gain is greater than TX max, (d) applying a gain control signal to the transmitter that is derived from TX max, and (e) enabling the counter to increase its count; else, if TX gain is less than TX max, (f) applying a gain control signal to the transmitter that is derived from TX gain, and (g) disabling the counter from increasing its count.

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