Wireless private branch exchange (WPBX) and communicating between mobile units and base stations
First Claim
1. A wireless communication system comprising:
- at least two base stations;
at least one switch in communication with the base stations;
a means for dividing a short-range communication protocol into a low-level protocol for performing tasks that require accurate time synchronization and a high-level protocol which does not require accurate time synchronization; and
for each connection of a mobile unit with a base station, a means for running an instance of the low-level protocol at the base station connected with the mobile unit and a means for running an instance of the high-level protocol at the switch.
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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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Citations
12 Claims
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1. A wireless communication system comprising:
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at least two base stations; at least one switch in communication with the base stations; a means for dividing a short-range communication protocol into a low-level protocol for performing tasks that require accurate time synchronization and a high-level protocol which does not require accurate time synchronization; and for each connection of a mobile unit with a base station, a means for running an instance of the low-level protocol at the base station connected with the mobile unit and a means for running an instance of the high-level protocol at the switch. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification