Communication transfer in a cellular radiotelephone system
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United States of America Patent
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-
Apr 12, 1994
Grant Date -
N/A
app pub date -
Aug 12, 1991
filing date -
Aug 12, 1991
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
During the handoff of a mobile unit (225) between a serving or source base-site (200) and a selected target base-site, (205 or 210) the target base-site (205 or 210) is directed to tune to and monitor the mobile unit's in progress call on a serving base-site channel frequency in order to verify target cell selection immediately before the handoff. Thereafter, the mobile unit (225) is directed to tune to a selected target base-site channel by the target base-site. Next, the target base-site (205 or 210) re-tunes itself to the selected target channel frequency and continues to transmit. Upon the arrival of the mobile unit onto the selected target channel, the serving base-site channel is released.
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