Adaptive power efficient radio environment measurements

Details Adaptive power efficient radio environment measurements Adaptive power efficient radio environment measurements

2006-03-21

2009-06-30

Nguyen, David Q (Department: 2617)

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

C370S318000, C370S328000, C370S311000, C455S436000, C455S434000, C455S423000

Reexamination Certificate

active

07555319

ABSTRACT:
User equipment (UE) in a cellular telecommunications system is operated such that the UE is caused to begin operating in a power saving state by determining that a first set of predefined criteria have been satisfied and is caused to leave the power saving state by determining that a second set of predefined criteria have been satisfied. Determining that the second set of predefined criteria have been satisfied includes making a plurality of signal quality measurements of a signal received from a serving cell during power saving state; determining which of the plurality of signal quality measurements represents a best one of the signal quality measurements; determining a threshold value as a function of the best one of the signal quality measurements; and determining that the second set of predefined criteria have been satisfied if a current signal quality measurement satisfies a predefined relationship with respect to the threshold value.

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