Method and system for wireless mesh network congestion control and base stations

Abstract

The embodiment of the invention relates to a method and a system for wireless mesh network congestion control and base stations. The method for wireless mesh network congestion control comprises the following steps: detecting congestion state information on a second base station and handling the congestion of the second base station according to the detected congestion state information; and sending requests carrying the congestion state information to a first base station which is on the upstream side and adjacent to the second base station and to a third base station which is on the downstream side and adjacent to the second base station respectively, wherein the requests carrying the congestion state information are used for instructing the first base station and the third base stationto handle congestion. The embodiment of the invention provides a method for hop-by-hop congestion control, which avoids the time delay of the transmission of congestion feedback information among a plurality of nodes, timely and effectively relieves network congestion, reduces data packet loss rate in the network and improves the throughput of the network.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a wireless mesh network congestion control method, system and base station. Background technique [0002] The wireless mesh (Mesh) network is also called "multi-hop" network, which is a new wireless network technology completely different from the traditional wireless network. [0003] In a traditional WLAN, each client accesses the network through a wireless link connected to an Access Point (AP for short). If users want to communicate with each other, they must first visit a fixed AP. This network structure is called a single-hop network. In a wireless Mesh network, any wireless device node can act as an AP and a router at the same time, each node in the network can send and receive signals, and each node can communicate with one or more peer nodes. direct communication. [0004] The biggest advantage of this structure is that if the nearest AP is congested due to exces...

AI Technical Summary

Problems solved by technology

[0017] There are already some congestion control methods for wireless Mesh networks in the prior art. In these methods, when the network is congested, the data receiving end sends feedback information to the data sending end to notify the data sending end of network congestion. There may be multiple nodes between the ends. In this way, it takes time for the data receiving end to send feedback information to the data sending end. During this period, the nodes between the data receiving end and the sending end will continue to send and receive data. Make network congestion unable to be alleviated in time

Images