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A method and system to subscription of events using SIP protocol

An event, communication system technology, applied in the field of communication systems, can solve problems such as increasing the load of shared resources

Inactive Publication Date: 2005-08-31
NOKIA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the functionality provided by the presence server is quite extensive, the resulting load on the shared resource will have to handle registrations and a large number of requests for presence information

Method used

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  • A method and system to subscription of events using SIP protocol
  • A method and system to subscription of events using SIP protocol
  • A method and system to subscription of events using SIP protocol

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] First refer to figure 1, which shows a typical third generation (3G) wireless telephone communication system operating under the Universal Mobile Telecommunications System (UMTS). At the heart of the system is an IP Multimedia Subsystem (IMS) 100 network, which routes calls between two or more network users and provides other network functions. Examples of such users are mobile terminals 111 , laptop computers 112 , personal digital assistants (PDAs) 113 , public switched telephone network (PSTN) telephones 131 , computer terminals 123 , and application servers 121 and 122 . IMS uses an IP-based network to handle these calls, which may include both voice and multimedia calls.

[0028] The IMS network effectively acts as a gateway between the users 111, 112, 113 and external IP-based networks 120 such as the PSTN 130 in the 3G system. Signaling between the mobile terminal and other users of the IMS network and within the IMS network is done under the Session Initiatio...

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PUM

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Abstract

A method in a communication system, the system comprising a first entity maintaining registration information from a plurality of users and a second entity maintaining information associated with said plurality of users, wherein said second entity information is dependent on the registration information. The method comprises sending a subscribe message for an event from the second entity to the first entity, wherein the event is a change in the registration information of at least one of the plurality of users at the first entity; receiving at the first entity a register message from at least one user, said message changing the registration information of said at least one user; sending a notification from the first entity to the second entity in response to the register message, wherein the notification includes information associated with said at least one user.

Description

technical field [0001] The present invention relates to communication systems, and in particular to event subscription in communication systems. Background technique [0002] Currently, a wide variety of communication systems are used to enable communication between two or more entities, such as user equipment and / or other nodes associated with the system. [0003] Communication systems that provide wireless communication for user terminals or other nodes are known. An example of a wireless system is a Public Land Mobile Network (PLMN). A PLMN is typically a cellular network in which a Base Transceiver Station (BTS) or similar access entity serves User Equipment (UE), such as Mobile Stations (MS), over a radio interface. The operation of the means required for communication is usually controlled by one or more control entities, which may themselves be interconnected. One or more gateway nodes are used to connect the PLMN to other networks. Other examples of such networks...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F13/00H04W28/00H04L29/06H04M3/42H04M3/487H04W8/20H04W80/10
CPCH04M3/42153H04M3/42068H04L29/06217H04L65/1006H04M3/4872H04L29/06333H04L29/06197H04M2203/353H04L65/1073H04L65/1016H04L65/1104
Inventor 阿基·尼米乔斯·考斯塔-雷凯纳莫翰·斯瓦纳丹马库斯·伊索马基派卡·派斯克里斯托弗·布莱特
Owner NOKIA CORP
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