Targeted interference equipment and interference method of wireless local area network

Abstract

The invention discloses targeted interference equipment and an interference method of wireless local area network. The interference equipment of the wireless local area network comprises a radio frequency receiving module, a frequency scanning module, a physical layer receiving module, a multi-access computer layer (MAC) analyzing and comparison module, an interference data generating module, a radio frequency transmitting module, a power amplifier and an antenna, wherein on one hand, the radio frequency module is connected with the antenna, and on the other hand, the frequency scanning module and the physical layer receiving module are respectively connected with the radio frequency module, the physical layer receiving module is connected with the MAC layer analyzing and comparison module, and the interference data generating module, the radio frequency transmitting module and the power amplifier are respectively connected with the MAC layer analyzing and comparison module. According to the targeted interference equipment and the interference method of wireless local area network, shield interference can be merely conducted by targeting appointed sites without influencing normal communication of other sites in network, and interference to all sites can be achieved. The targeted interference equipment and the interference method of wireless local area network is good in interference effect, wide in range of action and low in energy consumption.

Description

technical field [0001] The invention relates to a targeted wireless local area network interference device and an interference method, belonging to the technical field of wireless communication. Background technique [0002] With the rapid development of wireless communication technology, the use of wireless local area network (Wireless Local Area Network, WLAN) has been widely popularized. The IEEE 802.11 series is currently the mainstream wireless LAN standard, including the most widely used IEEE 802.11a / g / n standard and the IEEE 802.11ac standard currently being drafted. [0003] In the IEEE 802.11a / g standard, the physical layer adopts OFDM technology, which can use 5MHz, 10MHz and 20MHz bandwidth. The physical layer of the sending end first scrambles, encodes, punctures, interleaves, adds pilot bits and inverse fast Fourier transform (IFFT) to the MAC protocol data unit (MAC Protocol Data Unit, MPDU), and then Add the training sequence and SIGNAL field known by the re...

AI Technical Summary

Problems solved by technology

If the number of retransmissions of the data frame exceeds the maximum number of retransmissions, the data frame is still not sent successfully, then the data frame will be discarded

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