Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Reexamination Certificate
2007-03-13
2007-03-13
Nguyen, Brian (Department: 2661)
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
C370S310200, C370S315000, C370S331000, C455S435100, C455S436000
Reexamination Certificate
active
09477278
ABSTRACT:
A method and apparatus for requesting PPP instances from a packet data services network includes a mobile station configured to send an origination message to a packet data service node (PDSN) at which it has arrived upon leaving the vicinity of another PDSN. The message informs the new PDSN of the new location of the mobile station and indicates both the number of dormant PPP instances associated with the mobile station and a service reference identifier for each such PPP instance. A flag within the message may be used to indicate whether the PPP instances are dormant (i.e., whether the mobile station is engaged in a call).
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Hsu Raymond Tah-Sheng
Rezaiifar Ramin
Mcbarban Ramin
Nguyen Brian
Nguyen Thien T.
Phan Tri H.
Qualcomm Incorporated
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