Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Patent
1997-05-02
2000-02-22
Nguyen, Lee
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
455 69, 455127, 455522, H04B 140
Patent
active
060290749
ABSTRACT:
A mobile terminal includes power control logic which limits the maximum transmit power of the mobile radio telephone to conserve battery power when it is operated in a hand-held mode. The mobile radio telephone includes power control logic which sets the transmit power in response to power control codes received from a base station. The power control codes transmitted from the base station correspond to designated power levels. A signal is generated to indicate whether the mobile radio telephone is operated in a hand-held mode. When the mobile radio telephone is operated in a hand-held mode, the power control logic sets the power level at a maximum hand-held power level which is less than the maximum transmit power level.
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Pratt, Richard E. and Fitzgibbons, Thomas; "RF Power Configuration Method for Battery Equipped Portable Radios;" Motorola; vol. 24; Mar. 1995; pp. 75,77.
"The GSM System;" Radio Resource Management; 1993;pp. 342-346.
Ericsson Inc.
Nguyen Lee
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