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Method and system for realizing realtime transmission protocol message redundancy

A technology for real-time transmission of protocols and messages, applied in the field of communications, can solve problems such as inability to meet service QoS requirements, network bandwidth waste, and bandwidth waste, and achieve the effects of ensuring service QoS requirements, reducing transmission costs, and saving bandwidth resources.

Active Publication Date: 2007-09-05
HUAWEI TECH CO LTD
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Problems solved by technology

[0039] In practical applications, the above solutions have the following problems: the existing technical solutions will cause waste of network bandwidth or fail to meet service QoS requirements
However, during the call, due to the improvement of the network transmission environment, no additional redundancy can be needed to meet the packet loss rate requirements of the business. At this time, the redundancy at the time of call establishment is still used for transmission, which will cause a waste of bandwidth.
Similarly, it may not be necessary to use redundant transmission when the call is established, but during the call, it may be due to the deterioration of the network transmission environment that it is necessary to use redundancy to meet the packet loss rate requirements of the business. At this time, the call establishment is still used. When the redundancy is transmitted, the packet loss rate will be too high, which cannot meet the business QoS requirements.

Method used

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  • Method and system for realizing realtime transmission protocol message redundancy
  • Method and system for realizing realtime transmission protocol message redundancy
  • Method and system for realizing realtime transmission protocol message redundancy

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Embodiment Construction

[0074] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0075] The scheme of the present invention dynamically adjusts the redundancy of RTP messages according to the network quality during the call process, and uses low redundancy for transmission as much as possible under the premise of meeting the service packet loss threshold.

[0076] The scheme of the present invention mainly comprises the following steps:

[0077] A determines the maximum redundancy and minimum redundancy current service packet loss thresholds when the call is established;

[0078] B judges whether the current service supports dynamic adjustment of redundancy, and if so, proceeds to step C, otherwise proceeds to step D;

[0079] When the C call is in progress, under the premise of satisfying the packet loss threshold, the redundancy is adjusted...

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Abstract

The invention is used for avoiding the waste of bandwidth and satisfying the requirement of packet loss rate when using RTP redundancy mechanism. In the invention, when making a calling, the redundancy degree can be dynamically adjusted according to the transmission environment of network.

Description

technical field [0001] The present invention relates to communication technology, in particular to communication technology related to real-time transport protocol. Background technique [0002] The packet switching network based on the Internet Protocol (Internet Protocol, "IP" for short) has developed vigorously in recent decades and has become a communication network covering the whole world. IP network has advantages such as low cost. With the development of communication, more and more traditional telecommunication services including voice service are carried by IP network. The IP network carrying real-time voice service is also called packet voice (Voice over IP) , referred to as "VoIP") network. For example, the H.323 network, the next generation network (Next Generation Network, "NGN" for short), and the packet switching core network of the third generation mobile communication (The Third Generation, "3G" for short), etc. are all VoIP networks. [0003] The VoIP ne...

Claims

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Application Information

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IPC IPC(8): H04L1/00H04L29/06
Inventor 陈诚刘振华
Owner HUAWEI TECH CO LTD
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