Method, device and system for realizing packet loss detection

A packet loss detection and first-time technology, applied in the field of communication, can solve the problems of low communication efficiency, achieve the effect of improving communication efficiency and reducing the number of triggering RTO timers

Active Publication Date: 2019-07-05
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Embodiments of the present invention provide a method, device and system for realizing packet loss detection, which are used t

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  • Method, device and system for realizing packet loss detection
  • Method, device and system for realizing packet loss detection
  • Method, device and system for realizing packet loss detection

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Embodiment Construction

[0079] Embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0080] Figure 1A It is a schematic diagram of a networking structure of a communication system 100 provided by an embodiment of the present invention. The communication system 100 includes a communication device 110 and a communication device 120 . A connection based on a reliable transmission protocol may be established between the communication device 110 and the communication device 120, and packets are transmitted through the connection. Specifically, the reliable transmission protocol may be TCP, SCTP, or the like. It should be noted that the communication device 110 and the communication device 120 can communicate directly, such as directly connected through a network cable, or communicate through a transmission device (such as a router). The communication system 100 also includes at least one transmission device 130 (such as Figure 1B shown).

[0081...

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Abstract

The embodiment of the invention discloses a method, a device and a system for realizing packet loss detection. The method comprises the following steps of: when data receiving equipment determines that the value of a first indicator carried by the data receiving equipment is different from the value of the first indicator in the previous data message, the data receiving equipment receives the datamessage; a judgment is determined that the data sending equipment sends the retransmission message of the lost data message; and when it is determined that the retransmission message is lost, a confirmation message of which the confirmation number is the serial number of the lost data message is sent to the data sending device with the value of a second indicator in the confirmation message beingdifferent from the value of a second indicator in a previous confirmation message sent by the data sending device so as to indicate that the retransmission message is lost. Due to the fact that the data receiving device can determine that the data sending device retransmits one data message and notify the data sending device when determining that the retransmitted data message is lost, the data sending device can retransmit the data message again, the number of times of triggering the RTO timer is reduced, and the communication efficiency is effectively improved.

Description

technical field [0001] Embodiments of the present invention relate to the field of communication technologies, and in particular, to a method, device and system for realizing packet loss detection. Background technique [0002] A reliable transmission protocol is a transmission protocol widely used in a network (such as the Internet), such as Transmission Control Protocol (Transmission Control Protocol, TCP), Stream Control Transmission Protocol (Stream Control Transmission Protocol, SCTP) and other protocols. [0003] When the reliable transmission protocol is used for data transmission, in order to ensure the reliability of data transmission, it is necessary to detect and retransmit lost data packets. The retransmission timeout (Retransmission Timeout, RTO) mechanism is the most reliable way to ensure retransmission. Every time the data sending device sends a data packet to the data receiving device, an RTO timer will be set for the data packet. After receiving the confi...

Claims

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Application Information

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IPC IPC(8): H04L12/26H04L29/06H04L1/18H04L1/00
CPCH04L43/0829H04L69/16H04L1/18H04L1/0023H04L1/00
Inventor 张浩张明礼乔乃强俞博源
Owner HUAWEI TECH CO LTD
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