Method and systems for paging a radiotelephone unit based on...

Telecommunications – Radiotelephone system – Zoned or cellular telephone system

Reexamination Certificate

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C455S456100, C455S433000, C455S435100

Reexamination Certificate

active

07072674

ABSTRACT:
In the transmission of a message (LU) from a subscriber station (MS), a cell recognition signal (e.g. CI2) identifying the current radio cell (e.g. C2) in which the subscriber station (MS) is located is transmitted towards the mobile radio system with it and stored in a subscriber database (NVLR) of the mobile radio system. The stored cell recognition signal (e.g. CI2) makes it possible to call the subscriber station (MS) via a radio message to the most recently used radio cell(s) (e.g. C2) and possibly also to its/their neighboring radio cells. This reduces the signaling load on the transmission of the radio message (effective paging) in the area where there are radio cells. It is possible to derive the location information on the radio cell plane, which consists of the cell recognition to identify the radio cell last used by the subscriber station, without any additional signaling load.

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IEEE Transactions on Vehicular Technology, vol. 44, No. 3, (1995) Aug., George L. Lyberopoulos, Intelligent Paging Strategies For Third Generation Mobile Telecommunication Systems, pp. 543-553.
Jacek Biala, Mobilfunk und Intelligente Netze, Verlag Vieweg Braunschweig (1994), pp. 145-146; 169-171 and 287-290. (English-Language Translation Enclosed).

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