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Session initiation protocol (sip) based user initiated handoff

A protocol, a technology in dialogue, applied in the field of handover procedures

Inactive Publication Date: 2007-01-17
INTERDIGITAL TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the Session Initiation Protocol (SIP) has not heretofore been used to implement a handoff procedure between different devices operating on different systems

Method used

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  • Session initiation protocol (sip) based user initiated handoff
  • Session initiation protocol (sip) based user initiated handoff
  • Session initiation protocol (sip) based user initiated handoff

Examples

Experimental program
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Embodiment Construction

[0010] Please refer to figure 1 network architecture 10, this network architecture 10 has two different wireless devices 12, 32, wherein the wireless device 12 has a personal computer (PC) with a wireless local area network (WLAN) card 13, so that the wireless device 12 can communicate with the wireless local area network Network (WLAN) access point (AP) / access router (AR) to establish communication. Personal computer (PC) 12 may be a desktop or laptop computer equipped with a wireless local area network (WLAN) card, and may be accessed via a suitable interface (not shown for convenience). figure 1 ) establishes wireless communication with a wireless local area network (WLAN) 14. A personal computer (PC) 12 is coupled to the AAA unit 16 via a wireless local area network (WLAN) 14 to establish access, authorization, and accounting (AAA) at the AAA unit 16, and, via an Internet Protocol (IP) network 18 and router 20 are coupled to a service 22, for example, to communicate wi...

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Abstract

Method and apparatus for providing a solution to the switching problem includes negotiation of new media codes (coders / decoders) for utilization in cases where the two devices involved in the switching are incompatible. Although mobile IP (MIP) is presently utilized to perform switching procedures, the technique lacks a trigger mechanism to initiate switching between two different devices which communicate with two different networks or one common network. In addition, MIP does not address the issue of compatibilities between media types, codes and supported bit rate. The invention utilizes a session protocol (SIP) message for switching.

Description

technical field [0001] The present invention relates to implementing a handover procedure between two devices using two different technologies and connected to an Internet Protocol (IP) network via two different systems. In particular, the present invention relates to - a method and a device for implementing a handover procedure between these different devices and these different networks or a common network using the Session Initiation Protocol (SIP) established during a real-time session . Background technique [0002] Session Initiation Protocol (SIP) can be used to initiate and coordinate a multimedia session over an Internet Protocol (IP) network. For example, the Session Initiation Protocol (SIP) can be used in a Universal Mobile Telephone System (UMTS) network to establish a multimedia session between two users, at least one of which is operating on the UMTS (UMTS) network. However, the Session Initiation Protocol (SIP) has so far not been used to implement a hando...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F15/00G06F15/177G06F15/16H04Q7/20H04L12/26H04LH04L12/28H04L12/56H04L45/74H04W28/04H04W28/18H04W36/14H04W36/36H04W76/02H04W80/00H04W80/10
CPCH04W36/14H04W80/10H04W76/027H04W28/18H04L29/06027H04L65/1006H04L29/06197H04W36/36H04L65/1101H04L65/1104H04L65/1083H04W36/1446H04W36/0019H04W76/18H04W4/16H04W88/02H04W84/12H04L2101/37H04L45/745H04L65/65H04L2101/65H04L41/026H04L41/0681H04L51/10H04L63/0892H04W8/04
Inventor 卡梅尔·M·沙恩
Owner INTERDIGITAL TECH CORP