A kind of Internet of Things communication method, network side equipment and Internet of Things terminal

Abstract

The invention discloses a communication method for the Internet of Things, a network side device, and an Internet of Things terminal. In the invention, the downlink data frame sent by the network side device includes a traditional preamble, an HEW preamble, and a data field; the data field corresponds to The subcarrier resource includes at least one resource unit RU; the RU is used to send a downlink IoT frame to the IoT terminal, the downlink IoT frame includes an IoT preamble and an IoT data field, and the IoT preamble is used to transmit the downlink IoT The physical layer control information of the frame, the IoT data field is used to transmit the downlink data between the network side device and the IoT terminal, through the present invention, the network side device of the WLAN can schedule the IoT terminal, reducing the IoT communication process. risk of conflict.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a communication method for the Internet of Things, a network side device and an Internet of Things terminal. Background technique [0002] The Internet of Things (IoT), as a network for communication between people and things, and between things and things, is an important part of the new generation of information technology. [0003] In IoT, in order to obtain information in the physical world or to control objects in the physical world, a large number of IoT terminals need to be deployed extensively. IoT terminals are various devices with certain capabilities of perception, calculation, execution, and communication, and then realized through the network. Transmission, coordination and processing of information. [0004] Due to the widespread and massive deployment of IoT terminals, lower cost and complexity are required, and IoT terminals are required to have ve...

AI Technical Summary

Problems solved by technology

The WLAN standard is composed of 802.11a, 802.11n, 802.11ac and other versions that have gradually evolved. At present, the IEEE 802.11 standard organization has launched a new generation of WLAN standard called High Efficiency WLAN (High Efficiency WLAN, HEW), namely 802.11ax. Standardization work, the channel bandwidth used by WLAN devices supporting 802.11ax is at least 20MHz. Therefore, under normal circumstances, IoT terminals cannot directly receive and send signals in WLAN, that is, IoT communication is not affected by access points (Access Point, AP) The scheduling and coordination of devices on the WLAN network side, so in the current communication network, conflicts inevitably occur between IoT terminals, and between IoT terminals and WLAN devices

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