Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2006-01-26
2009-06-30
Nguyen, Lee (Department: 2618)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S440000, C455S456100
Reexamination Certificate
active
07555299
ABSTRACT:
A system for facilitating handoff adapted for use with a telecommunications network. The system includes position equipment for determining the location of a mobile transceiver within a region containing a first cell and a second cell. A comparison circuit compares the location with a predetermined handoff area within the region and provides a control signal in response thereto. A handoff initiation circuit initiates handoff of the mobile transceiver between the first cell and the second cell in response to the control signal. In a specific embodiment, the handoff is a hard handoff. The handoff region can be either intersystem or intrasystem.
REFERENCES:
patent: 4737978 (1988-04-01), Burke et al.
patent: 7031711 (2006-04-01), Soliman
Gum Arnold J.
Mays Andrea L.
Nguyen Lee
QUALCOMM Incorporated
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