Interference processing method, interference processing device and computer storage medium

Abstract

The embodiment of the present application discloses an interference processing method, an interference processing device, and a computer storage medium. When interference occurs in a wireless network, the links for data transmission in the wireless network are coordinated and scheduled to avoid interference between links. interference and improve the utilization of wireless resources. The method in the embodiment of the present application includes: receiving the reference signal sent by the nodes in the link group through the measurement subframe, the link group is a group of links that perform data transmission at the same time and at the same frequency, and the link is the link The channel for data transmission between two nodes in the group, the reference signal is a preset signal of the node stored in the link group; the link of the link in the link group is detected according to the reference signal Interference conditions, where the interference conditions include the interfering links in the link group, interference intensity, and interference sources; and coordinate scheduling for the links in the link group according to the interference conditions.

Description

technical field [0001] The present application relates to the communication field, and in particular to an interference processing method, an interference processing device, and a computer storage medium. Background technique [0002] In a traditional wireless network, each wireless device must first connect to a wireless access point (AccessPoint, AP) or router, and then access the network through the AP or router. If wireless devices need to communicate, they must first visit a fixed AP or router, and then transmit data through the fixed AP or router, and wireless devices cannot directly transmit data. Therefore, a wireless mesh (Mesh) network has been developed. In a wireless Mesh network, any wireless device can act as an AP or a router at the same time, so wireless devices can directly transmit data through the wireless network, which facilitates the data transmission of moving nodes, for example, fleets or moving wireless equipment etc. [0003] However, when two wi...

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Problems solved by technology

[0003] However, when two wireless devices are performing wireless transmission, there may be two other wireless devices that are also using the same frequency for data transmission at the same time, and there will be co-frequency interference between the two transmission links. Interference processing methods include: 1. Carrier-sense multiple access with collision avoidance (CSMA / CA), when sending data, listen to the carrier sent by each node, if it is found that the carrier that is sending data If there is co-frequency interference between the links, each node backs off randomly to avoid data conflicts (i.e. interference). Nodes in the back-off time cannot send data at this time, and after the back-off time ends, if data conflicts continue to be detected , then continue backing off. Therefore, when co-channel interference is detected, most of the backed-off nodes cannot send data, resulting in waste of air interface resources of backed-off nodes

2. Node coordination (Point Coordination Function, PCF), through the node polling mechanism to avoid interference, that is, the AP polls the nodes connected to it in turn to determine whether there is data to send, only the polled nodes can send data, wait The AP can continue to poll after sending. Therefore, the node can only send data at a fixed time (that is, when it is polled), and cannot actively send data at other times, resulting in waste of air interface resources at other times.

[0004] To sum up, in the co-channel interference processing solution in the Mesh network provided by the existing solution, each node can only send data at an appropriate time, and most nodes cannot send data when interference occurs, resulting in a waste of air interface resources

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