Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2005-03-01
2005-03-01
Milord, Marceau (Department: 2682)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S436000, C455S439000, C455S440000, C455S441000, C455S442000, C370S331000, C370S332000, C370S347000
Reexamination Certificate
active
06862449
ABSTRACT:
In a cellular mobile communications network a mobile station is capable of receiving a downlink signal from each of a plurality of base stations and transmitting an uplink signal to the plurality of base stations through a wireless channel. A transmission property of the downlink signals from the plurality of base stations to the mobile station is measured, and decided, in dependence upon the measure of the transmission property, a preferred base station transmitting the downlink signal with a preferred transmission property among the plurality of the base stations. The mobile station includes, in the uplink signal, data indicating the preferred base station(s) for transmitting the subsequent downlink signal to the mobile station. The base stations receiving the uplink signal identify from the data the preferred based station(s) and only the base station(s) identified as the preferred base station(s) transmits a subsequent downlink signal to the mobile station. Interference in such a cellular mobile telecommunications network can therefore be reduced.
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Mohebbi Behzad
Shearme Michael John
Fujitsu Limited
Katten Muchin Zavis & Rosenman
Milord Marceau
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