Reduction of power consumption in a portable communication unit
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United States of America Patent
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Mar 8, 1994
Issued Date -
N/A
app pub date -
Mar 9, 1993
filing date -
Aug 9, 1991
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Power consumption in a portable communication unit (101) is reduced by first transmitting at a first time, a message (701) at a first transmit power level to a repeater (103) on a first communication channel. At a second time the message (701) is repeated (903) by the repeater on a second communication channel, thereby transmitting a delayed message (703). The portable communication unit (101) tunes (807) to the second communication channel after transmitting all of the message (701), so as to receive at least part of the delayed message (703). The repeater (103) establishes a receive quality metric (705) for the message (701) and transmits (909) the receive quality metric after all of the delayed message (703) is transmitted. The portable communication unit receives and stores (809) the receive quality metric (705), and determines a second transmit power level for transmitting another message using the receive quality metric.
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