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Method and device for data packet transmission

A data packet and quantity technology, applied in the field of data packet transmission, can solve the problems of uncached data packet discarding, impact, etc.

Active Publication Date: 2016-03-09
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the packet buffer stage, there is no such differential processing mechanism
The queue only caches data packets according to the time order of entering the queue. When the queue is full or exceeds the threshold value, unbuffered data packets in the congestion management phase cannot enter the queue
Although some uncached data packets can be discarded in the congestion management phase, as the number of uncached data packets increases, the number of data packets discarded in the congestion management phase will also increase, and the congestion management mechanism still cannot avoid discarding important uncached data packets , thus affecting the Quality of Service (QoS for short) of important services

Method used

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  • Method and device for data packet transmission
  • Method and device for data packet transmission
  • Method and device for data packet transmission

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Embodiment Construction

[0091] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0092] In order to facilitate the understanding of the embodiment of the present invention, the data packet transmission process based on the embodiment of the present invention is briefly introduced first. Such as figure 1As shown, at the sending end of the data packet, the data packet to be sent needs to be sequentially processed in three stages of congestion management, data packet buffering and sending scheduling before being sent to the receiving end of the da...

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Abstract

The invention discloses a data packet transmission method and device, relates to the technical field of communication, and can effectively improve the problem of excessive packet loss in the congestion management stage when there is sudden congestion between devices or between modules in the device. The method of the present invention includes: when data packet congestion occurs or network bandwidth decreases, determining at least one data packet to be discarded in the data packet cache; discarding the at least one data packet to be discarded, so that at least one unbuffered data packet into the data packet cache, thereby preventing discarding too many unbuffered data packets, wherein the unbuffered data packets are data packets that do not enter the data packet cache. The present invention is mainly applied in the process of buffering data packets.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method and device for data packet transmission. Background technique [0002] At present, data packet transmission between devices and between modules in devices widely exists in communication systems. Usually, before sending a data packet, it is necessary to perform congestion management on the data packet to be sent, so as to reduce the packet loss rate during the transmission of the data packet. In the congestion management phase, if the cache queue is full or the number of packets waiting to enter the cache queue exceeds the threshold, the congestion management mechanism will discard the packets waiting to enter the cache queue; if the cache queue is not full or the number of packets waiting to enter the cache queue If the number of data packets does not reach the threshold value, the congestion management mechanism will add the data packets to the cache que...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/861H04L12/851H04L12/823H04L47/30H04L47/32
CPCH04L47/30H04L47/32H04L49/9047H04L47/12H04L47/11
Inventor 蓝海青
Owner HUAWEI TECH CO LTD
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