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Interface call signaling protocol

a signaling protocol and interface technology, applied in the field of communication systems, can solve the problem that the ietf standards are not inherently capable of supporting the requirement of interworking between the two parties

Inactive Publication Date: 2005-12-29
SHORES WILLIAM N +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

Enables seamless interworking between 2G and 3G networks by providing direct mapping of subscriber IDs and optimizing database queries, reducing the need for separate routing tables and name translation servers, thus enhancing call establishment and management across disparate network domains.

Problems solved by technology

Certain networks may be of a peculiar variety or an older type and are not suitable for using the IETF standards protocol.
Particularly, the IETF standards are not inherently capable of supporting an iDEN interworking requirement.

Method used

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Examples

Experimental program
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Embodiment Construction

[0016]FIG. 1 depicts a communication system 10 including the interconnection of 2G (second generation) network 20, such as an iDEN network coupled to a 3G (third generation) network 25 via a third generation 3G iDEN gateway 30. Coupled to 2G network 20 is 3G iDEN gateway 30. Third generation (3G) iDEN gateway 30 is coupled to the 3G network 25.

[0017] Third generation iDEN gateway 30, among other functions, provides for protocol conversions between the 2G network 20 and the 3G network 25. Software of processor 35 of 3G iDEN gateway 30 controls the protocols and their extensions that will be explained herein. New call signaling protocols to facilitate the extension of iDEN dispatch call services will be shown. These extensions extend the iDEN dispatch call services to external networks such as 3G networks.

[0018] These interfaces between 2G and 3G networks are based on the use of Session Initiation Protocol (SIP) and related protocols. These base protocols are shown in Request for co...

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PUM

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Abstract

A third generation (3G) gateway (30) provides the facilities for extending a number of internet protocols (40, 64, 74, 83, 100, 110, 120 and 130) between a second generation (2G) network and a 3G network. The various messages of a session initiation protocol (SIP) are extended to provide user identification and server identification subfields (42). The SIP message extensions facilitate the communication of 2G and 3G networks for the purposes of implementing push-to-talk and dispatch service features.

Description

BACKGROUND OF THE INVENTION [0001] The present invention pertains to communication systems, and more particularly, to an interface protocol arrangement between third generation (3G) networks and second generation (2G) networks. [0002] Communication control in communication systems is achieved by transmitting control information between the communicating networks. Of course, bearer traffic speech and data samples are transmitted. However, control of how the bearer traffic is transmitted and received and handled is achieved by communication between the networks themselves. [0003] The control information exchanged between communication networks is achieved by using a protocol. A protocol is an ordered set of information sent by the transmitting network and received by the receiving network. This protocol information is standardized so that all networks may interact with other networks. Typical protocols used by communication networks are based on various Internet Engineering Task Force...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): H04L12/28H04L12/56H04L29/06
CPCH04L29/06027H04W4/10H04W4/18H04W8/26H04L65/1006H04W80/10H04W88/16H04L65/104H04L65/103H04W76/005H04W76/45H04L65/1104H04L65/1101
Inventor SHORES, WILLIAM N.DESUTTER, BARBARA M.HALLIN, THOMAS G.NEYENS, EDWARD J.THOMAS, ROBERT J.
Owner SHORES WILLIAM N