Method of recovering dropped call in mobile communication...

Telecommunications – Radiotelephone system – Zoned or cellular telephone system

Reexamination Certificate

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Details

C455S436000, C455S421000, C455S432100, C370S329000, C370S331000

Reexamination Certificate

active

09732417

ABSTRACT:
There is provided a method of recovering a dropped call in a mobile communication system. When a call is dropped, a mobile station determines whether two consecutive good frames have been received on a traffic channel that was disconnected in relation to the dropped call, while searching for an adjacent base station whose signal arrives at the mobile station with a greater received signal strength using a searcher. The mobile station is assigned to a traffic channel by the searched base station using a physical channel used for data transmission and resumes the call on the traffic channel that is available earlier between the recovered traffic channel and the assigned traffic channel.

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patent: 5819171 (1998-10-01), Hoogerwerf et al.
patent: 5943334 (1999-08-01), Buskens et al.
patent: 5995830 (1999-11-01), Amin et al.
patent: 5999816 (1999-12-01), Tiedemann et al.
patent: 6381455 (2002-04-01), Smolik
patent: 6445918 (2002-09-01), Hellander
WO 99/62283 Schroderus, Method for channel use in TDMA system, and TDMA system.

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