Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2008-04-01
2008-04-01
Gelin, Jean (Department: 2617)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S437000, C455S453000
Reexamination Certificate
active
10010800
ABSTRACT:
A method for performing a hard hand-off between service areas in a cellular mobile communication system is provided. The method for performing a hard hand-off according to the invention includes the steps of setting an area of services covered with a frequency assignment (FA) unavailable to adjacent stations to be a boundary cell, entering into the set boundary cell by a mobile communication terminal during communication, and searching FAs of adjacent stations excluding the base station currently engaged in communication with said mobile communication terminal so as to determine a target FA, with which the mobile communication terminal is to perform a hard hand-off. The method for performing a hard hand-off according to the invention can prevent deterioration of call qualities caused by unnecessary hard hand-offs, and reduce the load on a system.
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Australian Office Action dated Dec. 18, 2002 issued in a counterpart application, namely Appln. No. 13551/02.
Doan Kiet
Gelin Jean
Samsung Electronics Co,. Ltd
The Farrell Law Firm PC
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