A TCP congestion control method and device

A congestion control and congestion window technology, applied in digital transmission systems, electrical components, transmission systems, etc., can solve problems such as long buffering time of video services, inefficient congestion control mechanism, poor user service experience, etc. The effect of adapting to links, avoiding network congestion, and improving business throughput

Active Publication Date: 2019-04-30
CHINA MOBILE GROUP SHANDONG
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  • Abstract
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Problems solved by technology

[0012] Since the existing TCP control scheme needs to meet the adaptability requirements for general services and various network environments, the adaptive congestion control mechanism is relatively inefficient, and will not affect applications with small bandwidth requirements such as web browsing and

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  • A TCP congestion control method and device
  • A TCP congestion control method and device
  • A TCP congestion control method and device

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Embodiment Construction

[0034] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0035] As used herein, terms such as "module" and "means" are intended to include computer-related entities such as, but not limited to, hardware, firmware, a combination of hardware and software, software, or software in execution. For example, a module may be, but is not limited to being limited to being, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and / or a computer. For example, both an application running on a computing device and the computin...

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Abstract

The embodiment of the invention provides a TCP congestion control method and device, and the method comprises the steps: determining a congestion window of a first RTT period as a half of a theoretical congestion window when the TCP congestion control is started; Determining a theoretical congestion window as a congestion window of a second RTT period when the first RTT period performs normal transmission; Determining the current historical maximum congestion window as the congestion window of the third RTT period when the transmission port is normal in the second RTT period; And for each RTTperiod after the second RTT period, determining the current historical maximum congestion window as the congestion window of the next RTT period during normal transmission from the third RTT period tothe current RTT period. By applying the scheme provided by the embodiment of the invention, the congestion control of the video service can be realized, and the service throughput is improved by quickly improving the congestion window, so that the service experience of a user is improved.

Description

technical field [0001] The embodiment of the present invention relates to the technical field of network transmission control, in particular to a TCP congestion control method and device. Background technique [0002] TCP (Transfer Control Protocol, Transmission Control Protocol) is the most widely used transmission control protocol on the Internet today, providing reliable end-to-end services. TCP uses a sliding window mechanism to control network traffic, and several window control mechanisms such as slow start, congestion avoidance, fast retransmission, and fast reply are applied to the data transmission process. [0003] Among them, the slow start algorithm in the existing TCP control: [0004] The sender will maintain a congestion window, and the initial congestion window is equal to the sending window, which is generally set to 1 at the beginning. Among them, for the convenience of discussion, the unit of the congestion window size is changed to the number of data pa...

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Application Information

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IPC IPC(8): H04L12/807H04L12/801H04N21/647H04L47/27
CPCH04L47/193H04L47/27H04N21/647
Inventor 孔庆川李先荣
Owner CHINA MOBILE GROUP SHANDONG
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