Cellular communication system

A cellular private branch exchange system for facilitating cellular communication for a first plurality of mobile station units, said cellular private branch exchange system also being configured for coupling with a public switching network, said cellular private branch exchange system comprising:

• a first base station subsystem for communicating with first and second mobile station units of said first plurality of mobile station units on respectively a first and a second cellular bearer data channels;
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• a cellular private branch exchange unit coupled to said first base station subsystem, said cellular private branch exchange unit being associated with a given public switching network telephone number known to said public switching network, wherein said cellular private branch exchange unit appears to said public switching network substantially like a wired private branch exchange (PBX), said cellular private branch exchange unit comprising:
• (a) a private mobile-services switching center for providing, in a cellular domain, mobility management for said first plurality of mobile station units, said private mobile-services switching center representing a first cross-connect node capable of cross-connecting said first cellular bearer data channel with said second cellular bearer data channel for calls between said first and said second mobile station units;
• (b) a private registry coupled to said private mobile-services switching center, said private registry being decoupled from a registry associated with said public switching network, said private registry storing subscriber information pertaining to said first plurality of mobile station units,
• (c) a private exchange block for handling, in said cellular domain, call control for said first plurality of said mobile station units wherein said cellular private branch exchange system facilitates said cellular communication between said first mobile station unit and said second mobile station unit even if said first mobile station unit and said second mobile station unit are unknown to said public switching network;
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• wherein said first base station subsystem and said private mobile-services switching center are deployed at geographically dispersed locations from one another, said first base station subsystem being implemented on a first physical chassis having a first back plane having a first number of slots and comprising a first TDM bus and a first control bus, said private mobile-services switching center being implemented on second physical chassis having a second back plane comprising a second TDM bus having the same features as said first TDM bus and a second control bus having the same features as said first control bus, wherein said second back plane having a second number of slots different from said first number of slots.

A cellular private branch exchange network for facilitating cellular communication among a first plurality of mobile station units implementing a first standard, said cellular private branch exchange network also being configured for coupling with a public switching network, said cellular private branch exchange network being associated with at least one given public switching network telephone number known to said public switching network, said cellular private branch exchange network comprising:

• a private mobile services switching center for providing mobility management in a cellular domain for said first plurality of mobile station units wherein a first mobile station unit of said first plurality of mobile station units communicates through said private mobile services switching center with a second mobile station unit of said first plurality of mobile station units;
• a private branch exchange block coupled to said private mobile services switching center for providing private branch exchange functions in said cellular domain for said first plurality of mobile station units;
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• a registry coupled to at least one of said private mobile switching center and said private branch exchange block, said registry storing subscriber information pertaining to said first plurality of mobile station units, wherein said cellular private branch exchange network facilitates said cellular communication among said first plurality of mobile station units and between individual ones of said first plurality of said mobile station units with a telephone set outside of said cellular private branch exchange network but coupled to said public switching network even if mobile stations of said first plurality of mobile station units are unknown to said public switching network.

A cellular private branch exchange configured for coupling to at least one base station subsystem to form a cellular private branch exchange system for facilitating cellular communication for a first plurality of mobile station units, said cellular private branch further being configured for coupling to a public switching network, said cellular private branch exchange comprising:

• a cellular private branch exchange unit configured for coupling to said at least one base station, said cellular private branch exchange being associated with at least one given public switching network telephone number known to said public switching network, said cellular private branch exchange unit comprising:
• a private mobile service switching center for providing, in a cellular domain, mobility management for said first plurality of mobile station units through said at least one base station subsystem;
• a private branch exchange block coupled to said private mobile service switching center, said private branch exchange block representing a first cross-connect node capable of cross-connecting a first cellular bearer data channel with a second cellular bearer data channel for calls between a first mobile station unit of said first plurality of mobile station units and a first phone set, said first phone set representing one of a second mobile station unit of said first plurality of mobile station units and a phone set outside said cellular private branch exchange system but coupled to said public switching network, said first mobile station unit being configured for communicating in a full duplex, cellular manner with said at least one base station subsystem on said first bearer data channel, and
• a registry coupled to at least one of said private mobile switching center and said private branch exchange block, said registry storing subscriber information pertaining to said first plurality of mobile station units, wherein said cellular private branch exchange system facilitates said cellular communication between said first mobile station unit and said second mobile station unit without intervention by the public switching network, thereby allowing additional communication features to be added to said cellular private branch exchange system without any chances in said public switching network, said cellular private branch exchange system further facilitates said cellular communication between said first mobile station unit and said phone set outside said cellular private branch exchange system but coupled to said public switching network even if said first mobile station unit is unknown to said public switching network.

A cellular private branch exchange configured for coupling to at least one base station subsystem to form a cellular private branch exchange system for facilitating cellular communication for a first plurality of mobile station units, said cellular private branch further being configured for coupling to a public switching network, said cellular private branch exchange comprising:

• a cellular private branch exchange unit configured for coupling to said at least one base station subsystem, said cellular private branch exchange being associated with a given public switching network telephone number known to said public switching network, wherein said cellular private branch exchange appears to said public switching network substantially like a wired private branch exchange (PBX), said cellular private branch exchange unit comprising:
• private mobile service switching center for providing, in a cellular domain, mobility management for said first plurality of mobile station units through said at least one base station subsystem;
• a private branch exchange block coupled to said private mobile service switching center, said private branch exchange block representing a first cross-connect node capable of cross-connecting a first cellular bearer data channel with a second cellular bearer data channel for calls between a first mobile station unit of said first plurality of mobile station units and a first phone set, said first phone set representing one of a second mobile station unit of said first plurality of mobile station units and a phone set outside said cellular private branch exchange system but coupled to said public switching network, said first mobile station unit being configured for communicating in a full duplex, cellular manner with said at least one base station subsystem on said first bearer data channel,
• a register coupled to at least one of said private mobile switching center and said private branch exchange block, said registry storing subscriber information pertaining to said first plurality of mobile station units, wherein said cellular private branch exchange system facilitates said cellular communication between said first mobile station unit and said second mobile station unit without intervention by the public switching network, thereby allowing additional communication features to be added to said cellular private branch exchange system without any chances in said public switching network, said cellular private branch exchange system further facilitates said cellular communication between said first mobile station unit and said phone set outside said cellular private branch exchange system but coupled to said public switching network even if said first mobile station unit is unknown to said public switching network;
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• the cellular private branch exchange further configured for coupling with another cellular private branch exchange via a direct link, said another cellular private branch exchange facilitates cellular communication for a second plurality of mobile station units, wherein calls between one of said second plurality of mobile station units and said first phone set are cross connected via said direct link, said direct link being external to said public switching network.

A cellular private branch exchange configured for coupling to at least one base station subsystem to form a cellular private branch exchange system for facilitating cellular communication for a first plurality of mobile station units, said cellular private branch further being configured for coupling to a public switching network, said cellular private branch exchange comprising:

• a cellular private branch exchange unit configured for coupling to said at least one base station subsystem, said cellular private branch exchange being associated with a given public switching network telephone number known to said public switching network, wherein said cellular private branch exchange appears to said public switching network substantially like a wired private branch exchange (PBX), said cellular private branch exchange unit comprising:
• a private mobile service switching center for providing, in a cellular domain, mobility management for said first plurality of mobile station units through said at least one base station subsystem;
• a private branch exchange block coupled to said private mobile service switching center, said private branch exchange block representing a first cross-connect node capable of cross-connecting a first cellular bearer data channel with a second cellular bearer data channel for calls between a first mobile station unit of said first plurality of mobile station units and a first phone set, said first phone set representing one of a second mobile station unit of said first plurality of mobile station units and a phone set outside said cellular private branch exchange system but coupled to said public switching network, said first mobile station unit being configured for communicating in a full duplex, cellular manner with said at least one base station subsystem on said first bearer data channel,
• a registry coupled to at least one of said private mobile switching center and said private branch exchange block, said registry storing subscriber information pertaining to said first plurality of mobile station units, wherein said cellular private branch exchange system facilitates said cellular communication between said first mobile station unit and said second mobile station unit without intervention by the public switching network, thereby allowing additional communication features to be added to said cellular private branch exchange system without any chances in said public switching network, said cellular private branch exchange system further facilitates said cellular communication between said first mobile station unit and said phone set outside said cellular private branch exchange system but coupled to said public switching network even if said first mobile station unit is unknown to said public switching network;
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• the cellular private branch exchange further configured for coupling with a wired private branch exchange via a first direct link, said wired private branch exchange facilitates communication for a plurality of wired phones, wherein calls between one of said plurality of wired phones and one of said first plurality of mobile station units are cross connected via said first direct link without employing said public switching network.

A method for simplifying management of cellular communication for a first plurality of mobile station units, said simplifying including providing said cellular communication between a first mobile station unit of said first plurality of mobile station units and a phone set, said phone set representing one of a second mobile station unit of said first plurality of mobile station units and any telephone set coupled to a public switching network, said method including:

• providing a cellular private branch exchange unit configured for coupling to at least one base station subsystem;
• associating said cellular branch exchange unit with a given public switching network telephone number known to said public switching network, wherein said cellular branch exchange unit appears to said public switching network substantially like a wired private branch exchange (PBX), said cellular branch exchange unit representing a first cross-connect node capable of cross-connecting a first bearer data channel with a second bearer data channel for calls between said first mobile station unit and said second station unit, said cellular branch exchange unit also being configured for cross-connecting said first bearer data channel associated with said first mobile station unit with said public switching network for a call between said first mobile station unit and said any telephone set coupled to said public switching network;
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• wherein a incoming call said any telephone set from said public switching network to any of said first plurality of said mobile station units is accomplished by coupling a call circuit associated with said incoming call, using said public switching network telephone number, with said cellular private branch exchange unit, said cellular branch exchange unit being configured to then couple said incoming call with a caller-indicated mobile station unit, thereby permitting said caller-indicated mobile station unit to communicate with said any telephone set in a cellular, full duplex manner even if said caller-indicated mobile station unit is unknown to said public switching network.

A method for simplifying management of cellular communication for a first plurality of mobile station units, said simplifying including providing said cellular communication between a first mobile station unit of said first plurality of mobile station units and a phone set, said phone set representing one of a second mobile station unit of said first plurality of mobile station units and any telephone set coupled to a public switching network, said method including:

• providing a cellular private branch exchange unit configured for coupling to at least one base station subsystem;
• associating said cellular branch exchange unit with a even public switching network telephone number known to said public switching network, wherein said cellular branch exchange unit appears to said public switching network substantially like a wired private branch exchange (PBX), said cellular branch exchange unit representing a first cross-connect node capable of cross-connecting a first bearer data channel with a second bearer data channel for calls between said first mobile station unit and said second station unit, said cellular branch exchange unit also being configured for cross-connecting said first bearer data channel associated with said first mobile station unit with said public switching network for a call between said first mobile station unit and said any telephone set coupled to said public switching network;
• wherein a incoming call said any telephone set from said public switching network to any of said first plurality of said mobile station units is accomplished by coupling a call circuit associated with said incoming call, using said public switching network telephone number, with said cellular private branch exchange unit, said cellular branch exchange unit being configured to then couple said incoming call with a caller-indicated mobile station unit, thereby permitting said caller-indicated mobile station unit to communicate with said any telephone set in a cellular, full duplex manner even if said caller-indicated mobile station unit is unknown to said public switching network;
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• coupling a wired PBX interface with said cellular private branch exchange unit, said wired PBX interface being configured for coupling with a wired PBX without employing said public switching network, wherein said cellular private branch exchange unit is configured to permit said first mobile station unit to communicate in a cellular, full duplex manner with a phone set associated with said wired PBX even if said first mobile station unit is unknown to both said public switching network and said wired PBX.

A cellular private branch exchange system for facilitating cellular communication for a first plurality of mobile station units, said cellular private branch exchange system also being configured for coupling with a public switching network, said cellular private branch exchange system comprising:

• a first base station subsystem for communicating with first and second mobile station units of said first plurality of mobile station units on respectively a first and a second cellular bearer data channels;
• and
• a cellular private branch exchange unit coupled to said first base station subsystem, said cellular private branch exchange unit being associated with a given public switching network telephone number known to said public switching network, wherein said cellular private branch exchange unit appears to said public switching network substantially like a wired private branch exchange (PBX), said cellular private branch exchange unit comprising:
• (a) a private mobile-services switching center for providing, in a cellular domain, mobility management for said first plurality of mobile station units, said private mobile-services switching center representing a first cross-connect node capable of cross-connecting said first cellular bearer data channel with said second cellular bearer data channel for calls between said first and said second mobile station units;
• (b) a private registry coupled to said private mobile-services switching center, said private registry being decoupled from a register associated with said public switching network, said private registry storing subscriber information pertaining to said first plurality of mobile station units,
• (c) a private exchange block for handling, in said cellular domain, call control for said first plurality of said mobile station units wherein said cellular private branch exchange system facilitates said cellular communication between said first mobile station unit and said second mobile station unit even if said first mobile station unit and said second mobile station unit are unknown to said public switching network;
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• a second base station subsystem for communicating with a third mobile station unit of said first plurality of mobile station units on a third cellular bearer data channel, said second base station subsystem unit being coupled to said first base station subsystem by a direct link, wherein calls between said third mobile station unit and said first mobile station unit are cross connected via said direct link.