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TCP acceleration method suitable for satellite link

A technology of satellite link and satellite gateway, applied in the field of satellite network, to achieve the effect of maximizing the use of network bandwidth, reducing feedback delay and high throughput

Active Publication Date: 2019-04-16
CHENGDUSCEON TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present invention proposes an effective acceleration method, which uses a combination of protocol pseudo-response and congestion control mechanism based on data volume to solve the congestion misjudgment caused by long delay and high bit error rate of the link, thereby improving the use efficiency of TCP

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  • TCP acceleration method suitable for satellite link
  • TCP acceleration method suitable for satellite link
  • TCP acceleration method suitable for satellite link

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Embodiment Construction

[0050] The invention provides a TCP acceleration method suitable for satellite links. In order to effectively use the TCP transmission protocol in the satellite network, it is necessary to implement TCP acceleration means to improve the use performance of TCP. The present invention proposes an effective acceleration method, which uses a combination of protocol pseudo-response and congestion control mechanism based on data volume to solve the congestion misjudgment caused by long delay and high bit error rate of the link, thereby improving the use efficiency of TCP .

[0051] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, under the condition of not conflicting with each other, the embodiments of the present application and the features in the embodiment...

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Abstract

The invention discloses a TCP acceleration method suitable for a satellite link. The method comprises the following steps: TCP communication of a satellite network is divided into three sections: a sender terminal user and a satellite gateway, a satellite gateway and a satellite gateway, a satellite gateway and a receiver terminal user; and ground communication between the terminal user and the satellite gateway is carried out by adopting a TCP, the satellite gateway at a sending end is provided with a network accelerator, and the network accelerator realizes bidirectional acceleration. On onehand, TCP data sent to the terminal user by the satellite gateway responds to TCP acceleration transmission in a protocol pseudo-response mode; on the other hand, an improved TCP is adopted for communication between the gateway and the gateway; the improved TCP is combined with traditional TCP congestion control and data amount-based congestion control modes to carry out congestion judgment on the network; and the problem of congestion misjudgment caused by long delay and high error rate of the link is solved by combining protocol pseudo-response and data amount-based congestion control mechanisms, so that the using efficiency of the TCP is improved.

Description

technical field [0001] The invention relates to the field of satellite networks, in particular to a TCP acceleration method suitable for satellite links. Background technique [0002] The advantages of the satellite network determine that it occupies an increasingly important position in the future communication system. The combination of advanced satellite communication technology and ground network technology has become a research hotspot. Transmission Control Protocol (TCP) is a transport layer protocol commonly used in the Internet, which provides reliable flow control and congestion control services. But the characteristics of the satellite network itself limit the use of TCP in the satellite network. The main factors affecting satellite network performance are as follows: [0003] Link high bit error rate: [0004] Due to the complexity of the satellite network environment, it is easily affected by factors such as weather, and the bit error rate of the link is much ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/185H04L29/06H04L12/801
CPCH04B7/18513H04L47/11H04L47/12H04L47/193H04L69/163
Inventor 田永谢永锋刘小林黄玺
Owner CHENGDUSCEON TECH
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