Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2011-06-14
2011-06-14
Zewdu, Meless N (Department: 2617)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S418000, C455S436000, C455S437000, C455S438000, C370S331000
Reexamination Certificate
active
07962142
ABSTRACT:
Methods and apparatus for storing, manipulating, retrieving, and forwarding state, e.g., context and other information, used to support communications sessions with one or more end nodes, e.g., mobile devices, are described. Various features are directed to a mobile node controlling the transfer of state from a first access node to a second access node during a handoff operation thereby eliminating any need for state transfer messages to be transmitted between the second access node and the first access node during handoff. Other features of the invention are directed to the use of a core network node to store state information. State information stored in the core node can be accessed and used by access nodes in cases where a mobile node does not send a state transfer message during a handoff, e.g., because communication with the first access node is lost or because such messages are not supported.
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Corson M. Scott
O'Neill Alan
Park Vincent
Tsirtsis George
Qualcomm Incorporated
Tam Kam T.
Zewdu Meless N
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