Method and apparatus for concurrently processing multiple calls in a spread spectrum communications system
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United States of America Patent
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-
Dec 16, 2008
Grant Date -
Sep 20, 2007
app pub date -
Jan 17, 2007
filing date -
Mar 3, 2000
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The call processing state machines defined by the CDMA standards (e.g., IS-95 and IS-2000) are modified to include a 'traffic channel' substate indicative of the mobile station processing at least one active call. Call control (CC) state machines of various types are also provided to control the processing of the calls. To process one or more calls concurrently, a CC state machine is instantiated upon receiving an indication to process a particular call. The instantiated CC state machine is identified with, and used to control the processing of, the particular call. Upon receiving an indication to process an additional call, another CC state machine can be instantiated for the additional call. Each call to be processed can also be associated with a particular a service option connection, which includes information indicative of a set of parameters (e.g., the physical channels) to be used for data transmission.
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