Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Patent
1997-11-06
2000-09-19
Vo, Nguyen
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
455439, H04Q 720
Patent
active
061225134
ABSTRACT:
A method for extending hard-handoff boundaries within a mobile telephone communications network is disclosed. There are multiple cells within a CDMA cellular/PCS telephone communications network, in which some of the cells operate under two separate carrier frequencies. In order to extend the hard-handoff boundary of a boundary cell that operates under two carrier frequencies, a neighboring cell adjacent to the boundary cell but operating under only one of the two carrier frequencies of the boundary cell must first be located. Then, a repeater with a fixed or adjustable delay is placed between the boundary cell and the neighboring cell such that the hard-handoff boundary of the boundary cell is extended.
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Appiah Charles N.
Crane John D.
Nortel Networks Corporation
Vo Nguyen
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