Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2007-08-07
2007-08-07
Gelin, Jean (Department: 2617)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S442000
Reexamination Certificate
active
10801221
ABSTRACT:
A method and system for a handoff in a broadcast communication system is disclosed. A subscriber assisted handoff is impractical in a broadcast communication system due to e.g., a high signaling load, a difficulty to synchronize the broadcast transmission. On the other hand, the small number of broadcast channels enables the subscriber station to perform the handoff autonomously. To streamline the autonomous handoff decision process, several distinct sets of pilot identifiers and rules for transitioning among the sets are defined. To fully integrate broadcast services with the services provided by the cellular telephone systems in a subscriber environment, a methods for various handoff scenarios are analyzed.
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Butler Brian K.
Chen Tao
Sinnarajah Ragulan
Tiedemann Jr. Edward G.
Wang Jun
Gelin Jean
Nguyen Thien T.
QUALCOMM Incorporated
Rouse Thomas R.
Young Roberta A.
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