US 6,640,108 B2Granted

Cellular communication system

AssigneeInterwave Communications International, Ltd.

InventorsPriscilla Marilyn Lu, Timothy Richard White

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Abstract

A cellular private branch exchange for facilitating cellular communication for a first plurality of mobile station units, which includes a first base station subsystem for communicating with a first and a second mobile station unit of the first plurality of mobile station units on respectively a first and a second cellular bearer data channel. The cellular private branch exchange further includes a cellular private branch exchange unit coupled to the first base station subsystem. In turn, the cellular private branch exchange unit includes a private mobile-services switching center for providing mobility management for the first plurality of mobile station units, the private mobile-services switching center representing a first cross-connect node capable of cross-connecting the first bearer data channel with the second bearer data channel for calls between the first and the second mobile station units. Further the cellular private branch exchange unit includes a private registry coupled to the private mobile-services switching center, the private registry storing subscriber information pertaining to the first plurality of mobile station units.

Claims27

Dependent claims

A cellular private branch exchange network for facilitating cellular communication for a first plurality of mobile station units, comprising:

a first base station subsystem for communicating with a first and a second mobile station unit of said first plurality of mobile station units on respectively a first and a second cellular bearer data channel, wherein the first base station subsystem is configured to provide 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 second mobile station units;
and
a cellular private branch exchange subsystem coupled to said first base station subsystem and to a public network, said cellular private branch exchange subsystem comprising:
a private mobile-services switching center for providing mobility management for said first plurality of mobile station units, said private mobile-services switching center configured to provide a second 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;
a private registry coupled to said private mobile-services switching center, said private registry storing subscriber information pertaining to said first plurality of mobile station units;
and
a private branch exchange block coupled to the private mobile-services switching center and private registry, the private branch exchange block configured determine whether to cross-connect the first cellular bearer data channel with the second cellular bearer data channel for calls between the first and second mobile stations at the first node in the base station subsystem, the second node in the private mobile service switching center, or in a public switching center in the public network.

4 more elements

A cellular private branch exchange subsystem coupled to a base station subsystem and to a public network for facilitating cellular communication among a first plurality of mobile stations implementing a first standard through said base station subsystem, said cellular private branch exchange subsystem comprising:

a private mobile services switching center for providing mobility management only for said first plurality of mobile stations;
a private registry coupled to said private mobile services switching center for storing subscriber information regarding said first plurality of mobile stations;
a private branch exchange block coupled to said private mobile services switching center and said private registry for providing private branch exchange functions for said first plurality of mobile stations and performing cross connection of call paths for calls among said first plurality of mobile stations, and inhibiting a second plurality of mobile stations implementing said first standard and not registered with said private registry from using resources of said cellular private branch exchange subsystem.

Dependencies are inferred from the claim text.