Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2005-02-01
2005-02-01
Tran, Pablo N. (Department: 2685)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S440000, C455S456500
Reexamination Certificate
active
06850761
ABSTRACT:
The present invention relates to a base station of a cellular radio system, which base station comprises antenna equipment for receiving signals from a certain mobile station simultaneously by at least two antenna beams directed in different directions, and measuring equipment for measuring the signal levels of the signals received by the respective antenna beans. For determining the position of the mobile station with greater accuracy the base station is provided with calculating means which are responsive to the measuring equipment to determine the direction from the base station to the mobile station by calculating the relations between the signal levels of the signals for the respective beams.
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A copy of the International Search Report for PCT/FI97/00318.
Nokia Corporation
Squire Sanders & Dempsey L.L.P.
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