Unlock instant, AI-driven research and patent intelligence for your innovation.

Session keep-alive method and device

A technology for keep-alive messages and senders, applied in the field of communications, which can solve the problems of exhaustion of SIP network entity resources, providing normal services, and incapable of legal users.

Inactive Publication Date: 2014-08-20
ZTE CORP
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the application of the SIP protocol started as early as 1999, and RFC4028 only appeared in 2005. During this time interval, a large number of SIP terminals have appeared on the market and on the network. These terminals should not support RFC4028. After 2005, there will still be terminal providers that do not implement RFC4028. Once these terminals that do not support RFC4208 access the IMS network, they will not be able to provide session keep alive, which will easily cause SIP network entities such as P / I / S-CSCF Due to the exhaustion of resources, SIP network entities such as P / I / S-CSCF will not be able to provide normal services for legitimate users

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Session keep-alive method and device
  • Session keep-alive method and device
  • Session keep-alive method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0047] Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0048] The following embodiments can be applied to a network supporting the SIP protocol, for example, an IMS network (but not limited thereto), and other networks supporting the SIP protocol can also be applied.

[0049] In this embodiment, a session keep-alive method is provided, figure 2 is a flowchart of a session keep-alive method according to an embodiment of the present invention, such as figure 2 As shown, the process includes the following steps:

[0050] Step S202, the network element on the network side receives the message, and determines that the message does not carry the keep-alive information specified in RFC4028;

[0051] Step S204, the network element sets a session timer, and ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method and device for keeping alive a session. The method includes: a network element on the network side receives a message and determines that the message does not carry the information for keeping alive specified in RFC4028; the network element sets a session timer, and After the timer expires, send a keep-alive message for keeping alive; after sending the keep-alive message or after receiving a keep-alive response message in response to the keep-alive message, the network element restarts the session timer. The present invention provides support for session keep-alive when RFC4028 is not supported.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a session keep-alive method and device. Background technique [0002] IP Multimedia Subsystem (IP Multimedia Subsystem, referred to as IMS) is the third generation partnership organization (3rd Generation Partnership Project, referred to as 3GPP) defined next-generation network standards, its notable feature is the use of Session Initiation Protocol (SessionInitiationProtocol, referred to as SIP) system. [0003] Session keep-alive is a method for detecting whether a session is alive. RFC4028 extends the SIP protocol to implement this keep-alive mechanism. RFC4028 extends two headers: Session-Expires and Min-SE, and a function option: timer (timer) to implement the session keep-alive check function. According to the definition in RFC4028, both parties of the session keep-alive object must support the RFC4028 extension protocol, and the following three implementation forms are...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04W76/00H04L29/06
Inventor 艾红芳曾丽君田利荣
Owner ZTE CORP