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Method and device for controlling congestion

A technology of congestion control and equipment, applied in the field of communication, can solve the problems of reducing TCP transmission efficiency, reducing the reliability of congestion control, and low control accuracy, and achieving the effect of full network bandwidth capability, full utilization, and improved reliability.

Inactive Publication Date: 2014-07-16
李文燕
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, since the receiver device receives packet data and returns ACK information will be affected by many network link factors, such as: packet loss, delay jitter and disorder caused by wireless links, the sender device based on the received ACK Information, adjust the congestion window value and use the adjusted sending window to control the data sending rate with low precision, which leads to a decrease in the reliability of congestion control, thereby reducing the transmission efficiency of TCP

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  • Method and device for controlling congestion
  • Method and device for controlling congestion
  • Method and device for controlling congestion

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Embodiment Construction

[0017] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. 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.

[0018] figure 1 A schematic flow chart of a congestion control method provided by an embodiment of the present invention, such as figure 1 As shown, the congestion control method in this embodiment may include:

[0019] Step 101, in the congestion avoidance phase, determine the adjustment value of the congestion window value according to the det...

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Abstract

The embodiment of the present invention relates to a congestion control method and device, and the method includes: in the congestion avoidance phase, determining the adjustment value of the congestion window value according to the detected acknowledgment information and the obtained round-trip time jitter corresponding to the acknowledgment information; The value of the congestion window is adjusted according to the determined adjustment value of the congestion window. The embodiments of the present invention can avoid the problem in the prior art that the congestion window value is adjusted according to the received acknowledgment information and use the adjusted sending window to control the data sending rate with low precision, and can make full use of the network bandwidth capacity, thereby improving The reliability of congestion control and the transmission efficiency of TCP.

Description

technical field [0001] Embodiments of the present invention relate to communication technologies, and in particular to a congestion control method and device. Background technique [0002] Transmission Control Protocol (Transmission Control Protocol, TCP for short) is a commonly used transport layer protocol at present, which can be used for reliable data transmission between nodes in a packet network. Congestion control is an important control function of TCP to ensure reliable data transmission in the packet network. The sending device can adjust the size of the congestion window (CWND) according to the received acknowledgment (ACKnowledge, ACK) information. The size of the sending window can then adjust the data sending rate to avoid network crashes. [0003] However, since the receiver device receives packet data and returns ACK information will be affected by many network link factors, such as: packet loss, delay jitter and disorder caused by wireless links, the sender...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/807H04L1/16H04L1/18H04L47/27
CPCH04L47/193H04L1/187H04L47/283H04L47/27
Inventor 肖文曙
Owner 李文燕