Method, device and system for improving data transmission quality

A technology for data transmission quality and data transmission, applied in the field of communications, can solve the problems of increased operator operating costs, low transmission efficiency, waste of network bandwidth, etc., to achieve the effect of ensuring quality and transmission efficiency

Active Publication Date: 2009-09-30
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The embodiment of the present invention solves the problem that the existing redundant mechanism carries redundant information, which causes waste of network bandwidth, thereby brings about lower transmission efficiency and increases th

Method used

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  • Method, device and system for improving data transmission quality
  • Method, device and system for improving data transmission quality

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1 of the present invention provides a method for improving data transmission quality, such as figure 1 shown, including the following steps:

[0027] Step 101: Classify the transmission data;

[0028] The transmission data may be voice data or other business data; and there may be many methods to classify the transmission data, generally in the field of data transmission, it can be classified according to the priority of the data, or according to the importance of the data Classify, or classify according to different types of data, etc., the above classification methods generally have a certain relationship, for example, data with relatively high importance will generally have a higher priority.

[0029] In some transmission coding formats, the transmission data has been classified, for example, some specific data bits are identified and classified.

[0030] Step 102: Perform redundant processing on the transmission message according to the classification o...

Embodiment 2

[0037] Taking the transmission of adaptive multi-rate (AMR, AdaptiveMulti-Rate) voice data packets by using the redundancy mechanism of RTP as an example, the technical solutions of the embodiments of the present invention will be described in detail below.

[0038] VoIP is a service with high real-time requirements, and generally uses the RTP protocol as the bearer protocol. RTP is a transport protocol for multimedia data streams on IP networks. RTP is defined to work in one-to-one or one-to-many transmission situations, and its purpose is to provide time information and media stream synchronization. The typical application of RTP is based on UDP, and the typical VoIP voice message protocol stack is as follows: figure 2 shown.

[0039] Step 201: Classify the transmitted voice data;

[0040] In 3GPP TS 26.101, the general AMR voice frame format is defined as image 3 As shown, it contains AMR Header (AMR Header), AMR Auxiliary Information (AMR Auxiliary Information), AMR ...

Embodiment 3

[0064] The difference between the third embodiment of the present invention and the second embodiment is that the third embodiment of the present invention can perform redundant processing on two or more types of classified data at the same time according to the classification of the data; for example, the common AMR speech frame contains A, For the three types of bits B and C, when the AMR CODEC MODE is 10.2 or 12.2, this embodiment can give priority to the redundancy of bits of type A and type B, that is, the current message preferably contains the previous one or several messages. Bits of type A and type B, or only the bits of type A and type B are redundant, and bits of type C are not redundantly processed, that is, the current message only contains the type A in the previous or several messages It is similar to the bits of class B; the specific processing method and flow are similar to those of the foregoing embodiments, and will not be repeated here.

[0065] Those of or...

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Abstract

The invention provides a method, a device and a system for improving data transmission quality. The method comprises the following steps: the redundancy processing for a transmission message is carried out according to the classification of transmission data. The redundancy processing for the transmission message is concretely carried out in such a way that the transmission message carries the content of another transmission message before the transmission message. In the invention, the redundancy processing for the transmission message is carried out by classifying transmission data according to the classification state of the transmission data, thus, under the condition that data packets are lost, the lost data packets can be recombined and recovered; and under the condition that the data packet losing rate is determined, the transmission quality and the transmission efficiency of the data can be further ensured.

Description

technical field [0001] The invention relates to the communication field, in particular to a method, device and system for improving data transmission quality. Background technique [0002] The packet-switching network based on the Internet Protocol (IP, Internet Protocol) 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 services are carried by IP networks. [0003] IP-based voice (VoIP, Voice over IP) is a service that requires high real-time performance, and generally uses a real-time transport protocol (RTP, real time protocol) as a bearer protocol. RTP is a transport protocol for multimedia data streams on IP networks. RTP is defined to work in one-to-one or one-to-many transmission situations, and its purpose is to provide time information and media stream sync...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L29/08H04L1/22
CPCH04L47/2441H04L65/608H04L47/38H04L29/06523H04L47/2416H04L47/10H04L1/0014H04L29/06517H04L1/08H04L29/0604H04L65/80H04L69/04H04L65/65
Inventor 杨义成赖志昌唐欣
Owner HUAWEI TECH CO LTD
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