Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2008-07-29
2008-07-29
Tieu, Binh K. (Department: 2614)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S552100, C370S249000, C709S232000
Reexamination Certificate
active
10606998
ABSTRACT:
A mobile communications network includes various entities, such as a mobile station, a radio network, and a packet data node. In one implementation, the mobile station is enabled for an always-on service. In response to detecting that the mobile station is an always-on mobile station, the packet-data node denies requests from the radio network to tear down a packet data session of the mobile station unless some predetermined criterion has been met.
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Nortel Networks Limited
Tieu Binh K.
Trop Pruner & Hu P.C.
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