Apparatus and method for controlling reverse TX power in a...

Details Apparatus and method for controlling reverse TX power in a... Apparatus and method for controlling reverse TX power in a...

2006-01-10

2009-02-17

Ferguson, Keith T (Department: 2618)

Telecommunications

Transmitter and receiver at separate stations

Plural transmitters or receivers

C455S068000, C455S069000, C455S500000, C455S127100, C455S127200

Reexamination Certificate

active

07493136

ABSTRACT:
Disclosed are an apparatus and a method for controlling reverse TX power in a mobile terminal. The apparatus includes a closed-loop power controller for limiting a TX power increase due to a power control bit of an RX signal by using a power-up limit bit and outputting a closed-loop power control value for decreasing the TX power when a TX power limit mode is selected, an adder for calculating a TX power by adding the closed-loop power control value and an open-loop power set using a power of the RX signal, and a maximum TX power limiter for setting a final TX power by subtracting a maximum TX power limit reference value determined according to an RX signal strength in the mobile terminal from the calculated TX power. Accordingly, it is possible to extend a call duration while accepting a rather poor call quality.

REFERENCES:
patent: 7200127 (2007-04-01), Lee et al.
patent: 10-2002-0057185 (2002-07-01), None
patent: 10-2002-0078064 (2002-10-01), None

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