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Method and system for obtaining communication delay between network entities through keep-alive mechanism

A network entity and delay technology, applied in the field of wireless communication, can solve problems such as affecting network performance and customer service quality, and failing to achieve acquisition link delay, so as to improve the handover success rate, improve customer service quality, and improve network performance. Effect

Inactive Publication Date: 2011-12-07
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Since the existing technology does not realize the method of obtaining the link delay between each network element, when switching between network elements, the link with the shortest link delay cannot be selected for communication, which affects network performance and customer service quality

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  • Method and system for obtaining communication delay between network entities through keep-alive mechanism
  • Method and system for obtaining communication delay between network entities through keep-alive mechanism
  • Method and system for obtaining communication delay between network entities through keep-alive mechanism

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Embodiment Construction

[0064] The solution of the embodiment of the present invention is mainly to obtain the link by extending the current network element link mechanism and adding a time stamp to the Keep-alive Req message (handshake request message) and the Keep-alive Rsp message (handshake response message). Delay, so as to select the link with the shortest link delay between network elements for communication, so as to improve the handover success rate, shorten the handover delay, and further improve customer satisfaction.

[0065] In the prior art, the structures of the Keep-alive Req message and the Keep-alive Rsp message are shown in Table 1 and Table 2 below. In the embodiment of the present invention, link time delay is obtained by adding a time stamp Time Stamp field in the Keep-alive Req message and the Keep-alive Rsp message. The structures of the Keep-alive Req message and the Keep-alive Rsp message are as follows Table 3 and Table 4.

[0066] IE

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Abstract

The present invention relates to a method and system for obtaining communication delay between network entities through a Keep-alive mechanism, the method comprising: a source network element NE1 sends a Keep-alive Req message carrying a first time stamp TimeStamp field to a destination network element NE2 ;NE2 receives the Keep-aliveReq message carrying the first timestamp field, and obtains the link delay from NE1 to NE2 according to the value of the first timestamp field; NE2 sends a Keep-alive message carrying the second timestamp field to NE1 Rsp message: NE1 receives the Keep-alive Rsp message carrying the second timestamp field, and obtains the link delay from NE2 to NE1 according to the value of the second timestamp field. By expanding the current network element link mechanism, the present invention can select the link with the shortest link delay between network elements for communication, thereby providing a basis for optimal link selection between network elements, improving the handover success rate, and further Improved network performance and customer service quality.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to a method and system for acquiring communication delay between network entities through a Keep-alive mechanism in a Wimax (Worldwide Interoperability for Microwave Access) system. Background technique [0002] In a WiMAX network, there are various network elements (NE, Network Entities) such as a terminal (MS, Mobile Station), a base station (BS, BaseStation), an access gateway (AGW, ASN GateWay), and the like. In the NWG1.5 protocol, a handshake mechanism between network elements is added, that is, the keep-alive mechanism. Through the handshake mechanism between network elements, information such as whether the links between network elements are connected can be accurately known. [0003] However, in practical applications, not only do you need to know whether the links between network elements are connected, but you also need to further know the link delay between ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/00H04W80/00
Inventor 宋玉献
Owner ZTE CORP