Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2007-05-08
2007-05-08
Beamer, Temica (Department: 2617)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S432100, C455S436000, C370S347000, C370S466000
Reexamination Certificate
active
10077970
ABSTRACT:
Methods to create a cellular-like communication system, such as a Wireless Private Branch Exchange (WPBX), which includes mobile devices such as standard cordless phones (handsets), particularly, mobile devices utilizing the Bluetooth short-range wireless communication protocol. The methods provide seamless and reliable handoff of sessions between Base Stations while the mobile device is moving between picocells, by implementing a high-level of synchronization between the Base Stations and the Switch. Base Stations of picocells having small coverage areas communicate with the handsets. The communication protocol is divided into a low-level protocol performed by the Base Stations and a high-level protocol performed by the Switch connected to all the Base Stations. The methods support mobile computing or telephony devices and communication protocols, which are not specified to handle handoffs of sessions while moving between Base Stations coverage areas in a data, voice or telephony wireless network.
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Arazi Nitzan
Barak Haim
Soffer Yaron
Beamer Temica
Carstens David W.
Carstens & Cahoon LLP
Commil USA LLC
Contee Joy K.
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