Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Reexamination Certificate
2003-04-09
2009-08-04
Nguyen, Duc M (Department: 2618)
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
C370S338000, C370S328000, C455S436000, C455S432100, C455S426100
Reexamination Certificate
active
07570616
ABSTRACT:
An apparatus in one example comprises a mobile cellular communication device that employs one or more of a plurality of radio technologies to support one or more communication sessions of a user over one or more of a plurality of radio networks. The plurality of radio technologies comprise a first radio technology and a second radio technology, wherein the first radio technology and the second radio technology comprise respective radio technologies that are not directly compatible. The one or more communication sessions comprise an active communication session of the user, wherein the active communication is associated with the mobile cellular communication device. The plurality of radio networks comprise a first radio network and a second radio network, wherein the first radio network employs the first radio technology, wherein the second radio network employs the second radio technology. Upon a handoff of the active communication session between the respective radio technologies that are not directly compatible of the first radio network and the second radio network, the mobile cellular communication device presents to the user one or more notifications of the handoff between the radio technologies that are not directly compatible.
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TSGS1#4(99)490, TSG-SA Working group 1 (services) meeting #4, Quebec City, Canada, Jul. 5-9, 1999.
Alcatel-Lucent USA Inc.
Nguyen Duc M
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