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 ca

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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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[0074] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to 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, and uses low redundancy for transmission as far as possible on the premise of meeting the business packet loss threshold.

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

[0077] A. Determine the current service packet loss threshold for maximum redundancy and minimum redundancy during call establishment;

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

[0079] When the C call is in progress, on the premise that the packet loss threshold is met, the redundancy is adjusted according to the network transmis...

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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...

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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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