Radio communication terminal and transmission power control...

Details Radio communication terminal and transmission power control... Radio communication terminal and transmission power control...

2008-01-29

2008-01-29

Anderson, Matthew (Department: 2618)

Telecommunications

Transmitter and receiver at separate stations

Plural transmitters or receivers

C455S013400, C455S067110, C370S337000, C375S259000

Reexamination Certificate

active

11100398

ABSTRACT:
A cellular phone includes an inner loop portion and an outer loop portion both for conducting power control. The outer loop portion includes a timer counter. The timer counter transmits a timing signal to a communication quality comparing section when a set length of time elapses. The communication quality comparing section compares a block error rate (BLER) of received data with a target BLER even when a predetermined amount of data has not been received. When the BLER of the received data is equal to or higher than the target BLER, a target signal to interference power ratio (SIR) is decreased. Accordingly, the cellular phone can decrease the target SIR even when the amount of the received data is small, and no request for an unnecessarily high transmission power is made to a base station.

REFERENCES:
patent: 6169761 (2001-01-01), Marcoccia et al.
patent: 6327312 (2001-12-01), Jovanovich et al.
patent: 6894996 (2005-05-01), Lee
patent: 6978149 (2005-12-01), Morelli et al.
patent: 7245678 (2007-07-01), Tanaka
patent: 2002/0044538 (2002-04-01), Lee
patent: 2004/0223467 (2004-11-01), Hundal et al.
patent: 2007/0195896 (2007-08-01), Ichikawa
Kota Kinoshita, Yasashii IMT-2000 (IMT-2000 Made Easy), The Telecommunications Association, 2001, pp. 42-47.

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