Lucent Technologies Inc.

At+t Corp.

At&t Bell Laboratories

James Joseph Fuentes

Alan S Mulberg

William Keith Cline

Charles Howard Parker

A method and apparatus for offering wireless telecommunication service. A switch such as an automatic Private Branch Exchange (PBX), equipped to communicate with Integrated Services Digital Network (ISDN) stations sends ISDN signaling messages to and receives ISDN signaling messages from a protocol converter. The protocol converter, which also communicates with a wireless cell site, converts messages between the ISDN protocol and a protocol for communicating with the wireless cell site. The cell site sets up wireless connections to a mobile station, essentially in its prior art mode, and the PBX sets up connections to the cell site essentially in its prior art ISDN station control mode.

Architecture for a wireless telecommunication system

A wireless system is equipped for autonomous registration of a wireless telephone when it receives the 'on' registration message from the cell site (which contains the telephone number and equipment identification number of the mobile unit), sends such identification of the mobile unit over a data link into a signaling network of the public switch telephone network. The signaling network forwards this data message to a service control point which controls such universal telephone number systems to register the number of the wireless unit for use the next time the universal telephone number is called. Advantageously, the equipment identification number (EIN) also received with the telephone number of the mobile unit may be used as a PIN or general identification number of the subscriber.

Automatic cellular telephone registration for universal telephone number

An arrangement for adapting a PCM (pulse code modulation) switch to control and communicate with a CDMA (code division multiple access) cell site for communication the wireless CDMA stations that communicate with that cell site. A protocol converter converts between signals for controlling integrated services digital network (ISDN) stations and signals for controlling a cell site, so that the cell site operates as if it were being controlled by a wireless switching center and the switch acts as if it were controlling ISDN stations. In the switch, a switchable connection is established between land based inputs and intermediate ports and a separate set of permanent connections is established between the intermediate ports and the PCM/packet converters. Advantageously, a switch designed to serve ISDN stations can be readily adapted to serve cell sites for serving wireless CDMA stations.

Simplified wireless subscriber system adapted for CDMA radio transmission

A method and apparatus for offering wireless telecommunication service. A switch such as an automatic Private Branch Exchange (PBX), equipped to communicate with Integrated Services Digital Network (ISDN) stations sends ISDN signaling messages to and receives ISDN signaling messages from a protocol converter. The protocol converter, which also communicates with a wireless cell site, converts messages between the ISDN protocol and a protocol for communicating with the wireless cell site. The cell site sets up wireless connections to a mobile station, essentially in its prior art mode, and the PBX sets up connections to the cell site essentially in its prior art ISDN station control mode. The PBX is connected to a class 5 (central office) telecommunications switching system for establishing connections between the public switched telephone network and the PBX, or between outlets of the PBX for a call between wireless stations.

Wireless telecommunication system using protocol conversion for

This invention relates to a method and apparatus for offering wireless telecommunication service. A switch such as an automatic Private Branch Exchange (PBX), equipped to communicate with Integrated Services Digital Network (ISDN) station sends ISDN signaling messages to and receives ISDN signaling messages from a protocol converter. The protocol converter, which also communicates with a wireless cell site, converts messages between the ISDN protocol and a protocol for communicating with the wireless cell site. The cell site sets up wireless connections to a mobile station, essentially in its prior art mode, and the PBX sets up connections to the cell site essentially in its prior art ISDN station control mode. The system can also hand off calls from one cell site to another connected to the same PBX, using the protocol converter to generate and distribute the locate request messages. The system can further process roamers by allowing them to register locally and by directly connecting intra-system traffic to such roamers.

Architecture for a cellular wireless telecommunication system

This invention relates to a method and apparatus for offering wireless telecommunication service. Pairs of the transceivers of a wireless cell site are directly interconnected. When a request for service is received, a controller allocates a pair of the transceivers to handle the call. If the call is to the public switched telephone network, an unconnected transceiver is connected to a switching system, such as a toll switch, and a protocol converter converts between call control messages to and from the cell site and call control messages to and from the toll switch. If the cell site has directional antennas, a pair of transceivers connected to the directional antennas for serving the calling and called stations is selected; transceivers connected to an omni-directional antenna can be used for overflow traffic and for traffic between the toll office and the cell site. Advantageously, the need for switching is avoided by selecting appropriate transceiver pairs and tuning the mobile stations to the correct channels.

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South Barrington, IL, United States of America

James Joseph Fuentes