Cellular telephone

Details Cellular telephone Cellular telephone

2006-10-17

2006-10-17

Anderson, Matthew D. (Department: 2618)

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

C455S437000, C455S438000, C455S439000, C370S331000, C370S335000

Reexamination Certificate

active

07123913

ABSTRACT:
A cellular telephone (100) that searches for a destination base station in accordance with a handoff instruction receives a soft handoff instruction or a hard handoff that is able to specify a first search window size. When the hard handoff instruction is received, a search block (70) is controlled so that a window control block (83) searches for pilot signals from neighboring base stations using a search window having a size larger than one of the first search window size and a third search window size that is used when the soft handoff instruction is received.

REFERENCES:
patent: 5627835 (1997-05-01), Witter
patent: 5872774 (1999-02-01), Wheatley et al.
patent: 5999816 (1999-12-01), Tiedemann et al.
patent: 6122513 (2000-09-01), Bassirat
patent: 6775252 (2004-08-01), Bayley
patent: 6944143 (2005-09-01), Bayley et al.
patent: 2002/0022463 (2002-02-01), Mori et al.
patent: 2002/0072370 (2002-06-01), Johansson et al.
patent: WO 99/23847 (1999-05-01), None
patent: 01/17125 (2001-03-01), None

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