Multiplex communications – Communication over free space – Signaling for performing battery saving
Reexamination Certificate
2008-05-06
2008-05-06
Feild, Joseph (Department: 2617)
Multiplex communications
Communication over free space
Signaling for performing battery saving
C455S522000, C370S252000, C370S332000, C370S342000, C370S329000, C370S341000, C370S318000
Reexamination Certificate
active
07369519
ABSTRACT:
A method for determining a threshold value for controlling output power of a mobile communication terminal in a W-CDMA system, includes: calculating a first value by dividing an average energy per a PN chip of downlink DPCCH by a total received power spectral density of downlink; calculating a second value by dividing the total received power spectral density of downlink by a white noise power spectral density; calculating a chip unit SIR by adding the first and second values; and determining a symbol unit threshold value for controlling ON/OFF of terminal output power by adding the chip unit SIR and a processing gain according to the number of chips per symbol. Accordingly, a symbol unit threshold value for controlling output power can be easily determined irrespective of a value of a data rate and a spreading factor.
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Feild Joseph
Heiber Shantell
KED & Associates LLP
LG Electronics Inc.
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