Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2007-09-18
2007-09-18
Appiah, Charles N. (Department: 2617)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
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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WO 99/62283 Schroderus, Method for channel use in TDMA system, and TDMA system.
Appiah Charles N.
Ly Nghi H.
Samsung Electronics Co,. Ltd.
The Farrell Law Firm
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