Pulse or digital communications – Receivers – Automatic frequency control
Reexamination Certificate
2006-01-11
2010-02-16
Bocure, Tesfaldet (Department: 2611)
Pulse or digital communications
Receivers
Automatic frequency control
C455S438000, C370S330000
Reexamination Certificate
active
07664209
ABSTRACT:
A method and apparatus for coordinating the time at which a mobile station performs searches for alternative systems to which a hard handoff will occur. The mobile station receives a command which instructs the mobile station as to when to tune to alternative frequencies in order to search for indicates of the presence of an alternative system. In another system which includes the present invention, predetermined times are defined with respect to a reference point in time that is common to both the origination base station and a mobile station. The mobile station tunes to alternative frequencies to perform searches only during these predetermined times. In addition, the mobile station coordinates the transmission of reports, which indicate the results of searches for alternative systems such that these reports are only transmitted from the mobile station when the mobile station is tuned to the origination frequency.
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Glauser Olivier
Tiedemann Jr. Edward G.
Beladi S. Hossain
Bocure Tesfaldet
Jacobs Jeffrey D.
QUALCOMM Incorporated
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