Wireless private branch exchange (WPBX) and communicating between mobile units and base stations
First Claim
1. In a wireless communication system comprising a Base Station connected with at least one mobile unit, a method of detecting the presence of a specific mobile unit in a coverage area of at least one neighboring Base Station, comprising:
- the Base Station connected with the specific mobile unit provides, independently of the specific mobile unit, and independently of a strength of a signal received from the specific mobile unit by the Base Station connected with the specific mobile unit, to the at least one neighboring Base Station, information about the connection with the specific mobile unit, including rough TOD and a device address for the specific mobile unit;
at the at least one neighboring Base Station, receiving information and generating a list of frequencies in which the specific mobile unit is likely to transmit;
and at the at least one neighboring Base Station, checking for a signal transmitted by the specific mobile unit.
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Accused Products
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
11 Claims
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1. In a wireless communication system comprising a Base Station connected with at least one mobile unit, a method of detecting the presence of a specific mobile unit in a coverage area of at least one neighboring Base Station, comprising:
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the Base Station connected with the specific mobile unit provides, independently of the specific mobile unit, and independently of a strength of a signal received from the specific mobile unit by the Base Station connected with the specific mobile unit, to the at least one neighboring Base Station, information about the connection with the specific mobile unit, including rough TOD and a device address for the specific mobile unit;
at the at least one neighboring Base Station, receiving information and generating a list of frequencies in which the specific mobile unit is likely to transmit;
and at the at least one neighboring Base Station, checking for a signal transmitted by the specific mobile unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. In a wireless communication system comprising a Base Station connected with at least one mobile unit, a method of detecting the presence of a specific mobile unit in a coverage area of at least one neighboring Base Station, comprising:
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the Base Station connected with the specific mobile unit provides, independently of the specific mobile unit, directly to the at least one neighboring Base Station, information about the connection with the specific mobile unit, including rough TOD and a device address for the specific mobile unit;
at the at least one neighboring Base Station, receiving information and generating a list of frequencies in which the specific mobile unit is likely to transmit;
and at the at least one neighboring Base Station, checking for a signal transmitted by the specific mobile unit.
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Specification