Method and system for handoff between an asynchronous CDMA base station and a synchronous CDMA base station
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United States of America Patent
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-
Jun 12, 2001
Grant Date -
N/A
app pub date -
Feb 25, 2000
filing date -
Feb 26, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method and system that enables faster acquisition of the forward link signal of a target base station in a mixed network of synchronous and asynchronous base stations is disclosed. The serving base station transmits in a neighbor list an estimated timing error 417 between the serving base station and a target base station. By utilizing the timing information, a mobile station estimates the relative time offset 408 between forward link signals received from the serving base station and signals received from the target base station. Timing information acquired during handoff enables accurate updating of the estimated timing error 417 subsequently transmitted in the neighbor lists by the base stations.
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