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Method for detecting QoS

A media gateway and message technology, applied in the field of communication, can solve problems such as network channel interruption, inability to intuitively reflect the QoS of the IP bearer network, insufficient bearer bandwidth, etc., to achieve the effect of ensuring service quality and improving real-time monitoring capabilities

Inactive Publication Date: 2009-03-18
INVT SPE LLC
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Problems solved by technology

In an IP network, when the transmission between two packet devices and the bearer quality of data equipment become poor, the possible reasons are insufficient bearer bandwidth, network path interruption or network attack. If the bearer network QoS (Quality of Service, Quality of Service) will lead to the degradation of all business quality or even failure to complete the business, so it is very important for the media gateway to be able to monitor and detect the quality of service QoS (Quality of Service) of the IP bearer network in real time
[0003] In RFC1889, indicators such as packet loss rate, jitter, and delay are defined to measure the QoS of the IP bearer network, but RFC1889 does not explain how to use the indicators of packet loss rate, jitter, and delay to calculate the comprehensive QoS of the IP bearer network. At the same time, the bearer network QoS indicators (packet loss rate, jitter, and delay) directly calculated by the real-time transmission control protocol RTCP are only for a single call, and cannot directly reflect the overall IP bearer network QoS

Method used

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Embodiment Construction

[0031] The technical solution of the present invention tests the QoS of the specified office direction by acquiring the information in the RTCP message transmitted between the media gateways, such as figure 2 and image 3 As shown, the following takes "media gateway 1" and "media gateway 2" as examples to illustrate the entire process:

[0032] Step 100: the media gateway 1, under the control of the softswitch 1, periodically sends an RTCP (Real-time Transport Control Protocol, real-time transport control protocol) message to the IP bearer network to a user on the designated office direction on the media gateway 1, The RTCP message carries the user's local time and serial number information, and the specified office direction is specified in the message sent by the softswitch device 1;

[0033] Step 200: the media gateway 2 receives the RTCP message sent by the media gateway 1 from the IP bearer network, records information such as the time stamp of the received message, the...

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Abstract

A method for detecting QoS includes obtaining information in message transmitted between media gateways and obtaining packet loss rate and jitter as well as time delay of user on each route connected to media gateway by utilizing said information then obtaining data of average packet loss rate and average jitter as well as average time delay on this station direction as per data obtained from user at each route, finally obtaining comprehensive QoS index of said office direction according to data of average packet loss rate and average jitter as well as average time delay at this station direction and weight coefficient of voice quality influenced by three type of said datum.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a method for detecting QoS. Background technique [0002] Such as figure 1 As shown, a typical NGN architecture includes a soft switch and a media gateway. The soft switch is a device responsible for call control, and the media gateway is a device responsible for IP and other bearer media conversion. These devices are connected to the IP network and communicate with each other through the IP bearer medium. In an IP network, when the transmission between two packet devices and the bearer quality of data equipment become poor, the possible reasons are insufficient bearer bandwidth, network path interruption or network attack. If the bearer network QoS (Quality of Service, Quality of Service) will lead to the degradation of all services or even failure to complete the service. Therefore, it is very important for the media gateway to be able to monitor and detect the QoS (Qua...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/26H04L12/56H04L29/06H04L12/24
CPCH04L43/0852H04L41/5003H04L43/0829H04L43/087
Inventor 卢永刚
Owner INVT SPE LLC
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