Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Reexamination Certificate
2011-07-26
2011-07-26
Appiah, Charles N (Department: 2617)
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
C370S328000, C370S349000, C370S338000, C455S552100, C455S425000, C455S128000, C455S436000, C455S404100, C709S230000, C709S249000, C709S250000
Reexamination Certificate
active
07986669
ABSTRACT:
To facilitate vertical handoff, a radio network will identify air interface protocols currently available for use by a wireless device and will then select one of the available air interface protocols based at least in part on the type of communication in which the device is currently engaged. The radio network may further take into consideration the current level of congestion under each available air interface protocol and may select an air interface protocol that has sufficient bandwidth available to support the type of communication in which the device is currently engaged. If the device is not currently operating under the selected air interface protocol, the radio network may then orchestrate a vertical handoff to the selected protocol.
REFERENCES:
patent: 7509437 (2009-03-01), Dowling
patent: 2002/0160745 (2002-10-01), Wang
patent: 2004/0120283 (2004-06-01), Rezaiifar et al.
patent: 2005/0032493 (2005-02-01), Sugiyama et al.
Appiah Charles N
Sprint Spectrum L.P.
Vu Michael T
LandOfFree
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