Handover method (roaming) for mobile terminal devices

Telecommunications – Radiotelephone system – Zoned or cellular telephone system

Reexamination Certificate

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Details

C455S439000, C455S445000, C370S331000

Reexamination Certificate

active

06937860

ABSTRACT:
In the course of its logging on at a base station (B2) coupled to a switching device (V), a mobile terminal device (E1) transmits a terminal equipment identifier (EK1) identifying the mobile terminal device (E1) to the base station (B2). The base station (B2) thereupon transmits the terminal equipment identifier (EK1)—if appropriate together with a base station identifier (BK2) identifying the base station (B2)—to the switching device (V) and initiates the activation of a forwarding performance feature, e.g. for call diversion, known per se in connection with wire-based terminal equipment, in the switching device (V). As a result of the activation of this forwarding performance feature, a connection setup to be routed via the base station (B2) is initiated in the event of connection requests directed to the mobile terminal device (E1). As a result, a central radio switching assembly, as required in known handover methods, is unnecessary.

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“Cordless Telecommunications in Europe”, Wally H. W. Tuttlebee (Ed.), Springer Verlag London, dated 1990, pp. 43-48 and 256-258, as mentioned on p. 4 of the specification.

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