Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Reexamination Certificate
2005-11-29
2005-11-29
Nguyen, Brian (Department: 2661)
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
C370S349000, C370S389000, C370S474000, C370S475000, C455S432100, C455S435100, C455S438000
Reexamination Certificate
active
06970445
ABSTRACT:
A mobile communications system that uses IP packets to transmit data between end nodes, such as mobile devices, is described. In order to facilitate session establishment, maintenance, security, and handoff operations, access nodes through which end nodes communicate with one another include a session signaling server module and a mobility agent module. The session signaling server module may be implemented as a SIP server while the mobility agent module may be implemented using Mobil IP signaling. The mobility agent and SIP server within an access node are identified using a single shared identifier, IP address. The same security method and common secret may be used to provide security with regard to both mobile IP messages and SIP messages. Sessions admission decisions and resource allocation for admitted sessions can also take place internally to the access node of this invention without need for signaling to external elements.
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Corson M. Scott
O'Neill Alan
Park Vincent
Tsirtsis George
Flarion Technologies, Inc.
Nguyen Brian
Phan Tri H.
Straub Michael P.
Straub & Pokotylo
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