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Two-layer congestion control method of wireless network

A congestion control, wireless network technology, applied in wireless communication, data exchange network, network traffic/resource management, etc.

Active Publication Date: 2011-04-20
HUAWEI TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the protocol proposal does not give how to perform corresponding congestion control according to the local congestion situation, so that the idea of ​​this congestion control cannot be applied to the actual network for congestion control

Method used

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  • Two-layer congestion control method of wireless network
  • Two-layer congestion control method of wireless network
  • Two-layer congestion control method of wireless network

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Embodiment Construction

[0080] Since frequent congestion control may bring hidden dangers of system instability, timing congestion control is usually performed. Two preferred embodiments of timing congestion control are given below to describe the present invention in detail.

[0081] First preferred embodiment:

[0082] Usually, each network node uses multiple priority queues (AC) to process different services respectively. In this way, in practical applications, the following two steps can be used to monitor different priority queues:

[0083] Step 101, the current network node monitors its own congestion.

[0084] Usually, each network node uses multiple priority queues (AC) to process different services respectively. In this way, in practical applications, the following two steps can be used to monitor different priority queues:

[0085] A1. The current network node calculates the difference between the short-term effective receiving rate and the short-term effective sending rate of each priorit...

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Abstract

The invention discloses a two-layer block control method of wireless network, comprising that A, current network node detects self block condition and executes step B when in block, B, current network blocked node sends a block control message with self block condition to connected an ascending network node or a nearby node, C, the network node receiving the block control message, according to the block condition adjusts local node transmission speed. The invention makes clear block detection, message sending, and block control, to be directly used in real network, as wireless multi-jump network which comprises wireless network, mobile Ad hoc network and wireless sensor network or the like, thereby reducing local block.

Description

technical field [0001] The invention relates to the data transmission technology of the wireless network, in particular to a two-layer congestion control method of the wireless network. Background technique [0002] In a classic computer network, end-to-end flow control is usually implemented at the upper layer of the network, for example, the TCP congestion control mechanism is used to implement an end-to-end flow control mechanism. This end-to-end flow control mechanism cannot solve the local congestion problem of the wireless network well. [0003] Specifically, adjacent hops in a wireless mesh (Mesh) network share media resources, so how to schedule these adjacent links in a wireless mesh network to maximize network throughput is crucial. The loss of data packets in a wired network is caused by network congestion; while in a wireless network, due to the interference of the transmission channel, the bit error rate of network transmission is high, and random data packet l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04W28/02H04L29/06
CPCH04L47/10H04L47/11H04L47/263H04L47/14
Inventor 方旭明朱晓东姚忠辉张军平
Owner HUAWEI TECH CO LTD
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