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Queue management method and device

A queue management and queuing technology, applied in digital transmission systems, data exchange networks, electrical components, etc., can solve problems such as unreasonable congestion solutions, and achieve the effect of reducing the probability of serious congestion

Active Publication Date: 2020-08-04
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a queue management method and device to solve the unreasonable problem of existing congestion solutions

Method used

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  • Queue management method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Embodiment 1 of the queue management method of the present invention, as figure 1 As shown, the method includes:

[0033] Step 101: monitor the queue cache status;

[0034] Step 102: When the time period for which the number of queue buffers exceeds the congestion warning threshold exceeds a predetermined period of time, start to implement policy packet loss.

[0035] Further, the queue buffer quantity exceeds the congestion warning threshold and lasts for a predetermined duration refers to a single duration of the queue buffer quantity exceeding the congestion warning threshold or multiple continuous cumulative durations exceeding the predetermined duration.

[0036] When the queue buffer quantity exceeds the congestion warning threshold for more than a predetermined duration (also referred to herein as "wake-up observation period"), it indicates that the wireless network side monitors that a congestion problem that cannot be solved by the congestion recovery mechanis...

Embodiment 2

[0052] In Embodiment 2 of the queue management method of the present invention, only the wake-up timer is set, such as image 3 As shown, the method includes:

[0053] Step 301: Set the wake-up timer and the duration of the wake-up timer;

[0054] Step 302: Adjust the state of the wake-up timer according to the queue buffer state;

[0055] Wherein, when the number of queue buffers rises to be greater than the congestion warning threshold, the wake-up timer is started; wake-up timer;

[0056] Step 303: monitoring the state of the wake-up timer;

[0057] The above steps 301 to 303 realize the monitoring of the queue buffer state; specifically, the monitoring operation of the queue buffer state, especially the queue buffer quantity, can be triggered periodically and / or by events, and the events mentioned herein include data packet arrival and data packet send.

[0058] Step 304: When the wake-up timer expires, start implementing policy packet loss.

[0059] When the wake-up...

Embodiment 3

[0088] Dual timers are set in Embodiment 1 of the queue management method of the present invention, that is, a wake-up timer and a sleep timer, such as Figure 6 As shown, the method includes:

[0089] Step 601: Set wake-up timer, sleep timer and duration of each timer;

[0090] Step 602: Adjust the states of the wake-up timer and the sleep timer according to the queue buffer state;

[0091] Wherein, when the number of queue buffers rises to be greater than the congestion warning threshold, the wake-up timer is started; during the operation of the wake-up timer, when the number of queue buffers drops below the congestion warning threshold, the started Wake up the timer, and start the sleep timer; during the operation of the sleep timer, when the number of queue buffers rises to be greater than the congestion warning threshold, discard the sleep timer, and restart the suspended wake-up timer; When the sleep timer overflows, discard the suspended wake-up timer;

[0092] Step ...

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Abstract

The invention relates to a queue management method and device. The method includes: monitoring the queue buffer state; when the queue buffer quantity exceeds the congestion warning threshold for more than a predetermined duration, a policy packet loss is started. The invention can solve the unreasonable problem of the existing congestion solution, reduce the probability of severe congestion in the future, and realize the cooperation between TCP and AQM.

Description

technical field [0001] The present invention relates to communication technology, in particular to a queue management method and device. Background technique [0002] With the explosive development of the mobile Internet, there is a huge demand for Internet services through the entrance of the wireless access network. Due to the inherent handover, high packet loss rate, and delay jitter of the wireless access network, it is generally the bottleneck of the end-to-end IP network performance. The bandwidth mismatch pipeline composed of wireless and wired networks will increase the probability of network congestion. At this time, the ability and robustness to reduce the probability of congestion and quickly recover from the congestion state largely determine the end-to-end network performance. [0003] Congestion in a mixed wireless-wired network occurs statically due to the difference in available bandwidth of the pipe between wired and wireless: for the downlink, Internet Pro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/823H04L47/32
Inventor 杨扬
Owner ZTE CORP
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