Telecommunications – Transmitter and receiver at separate stations – Plural transmitters or receivers
Reexamination Certificate
2011-04-12
2011-04-12
Wendell, Andrew (Department: 2618)
Telecommunications
Transmitter and receiver at separate stations
Plural transmitters or receivers
C455S428000, C455S509000, C455S574000, C370S311000, C370S335000, C340S007320, C340S007360
Reexamination Certificate
active
07925290
ABSTRACT:
A system and method for providing high performance dispatch services for a push-to-talk (PTT) communication over a wireless communication network. When a wireless device is powered up, it registers with a server and then transitions to a paging state instead of an idle state. When the wireless device is ready to transmit PTT communications, it sends a message to the server and transitions to a transmission state when a confirmation is received from the server. Once in the transmission state, the wireless device is ready to transmit the PTT communications to the server.
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Gill Harleen K.
Grilli Francesco
Rosen Eric C.
Freiwirth Raphael
Qualcomm Incorporated
Tran Paul P
Wendell Andrew
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