Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2006-06-27
2006-06-27
Pezzlo, John (Department: 2662)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C370S331000, C455S436000, C709S220000
Reexamination Certificate
active
07068669
ABSTRACT:
Techniques to maintain an IP session established via a first (e.g., HDR) radio network while being tuned to a second (e.g., cdma2000) radio network. During registration, configuration, and session establishment with the first and second radio networks, an access terminal may be respectively assigned first and second IP addresses for use during these sessions. If the access terminal leaves the first radio network, it can request that the IP session be maintained and provides a forwarding address. Thereafter, if the first radio network has data for the access terminal, it sends a “spoof” packet to the access terminal using the forwarding address. The spoof packet can indicate that there is data available for the access terminal. Upon receiving a communication (e.g., a page) from the second radio network in response to the spoof packet, the access terminal establishes a connection with the first radio network and receives the data.
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3rdGeneration Partnership Project 2 “3GPP2”,Wireless IP Network Standard, Version 1.0, Version Date: Dec. 10, 1999, pp. 1-50.
Abrol Nischal
Lioy Marcello
Nguyen Thien T.
Patel Rupit
Pezzlo John
QUALCOMM Incorporated
Wadsworth Philip R.
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