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

A network-side device and communication method technology, applied in wireless communication, data exchange network, channel estimation, etc., can solve the problem that IoT terminals cannot directly receive and send WLAN

Active Publication Date: 2020-01-10
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

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Embodiment Construction

[0251] The technical solutions in the embodiments of the present invention will be clearly described below with reference to the drawings in the embodiments of the present invention.

[0252] The IoT communication method provided by the embodiment of the present invention can be applied to figure 1 In the network architecture of the wireless local area network (Wirelesslocal Access Network, WLAN) shown. figure 1 Access point (Access Point, AP) and other WLAN network devices are responsible for two-way communication with multiple stations (Station, STA) and other WLAN devices, that is, the AP can send downlink data to the STA, such as figure 1 In , AP can send downlink data to STA1 and STA2; AP can also receive uplink data from STA, such as figure 1 , the AP can receive the uplink data sent by STA3.

[0253] The WLAN supports the 802.11a, 802.11n, 802.11ac, and 802.11ax standards proposed by the IEEE 802.11 standard organization. For the convenience of description, the embodi...

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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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/24H04L29/08H04W24/02
CPCH04W74/04H04L5/0007H04L5/0044H04L27/2603H04L27/2605H04L27/0008H04L1/0003H04L5/003H04L25/0202H04L27/2602H04L27/2647H04W72/1273H04L12/00H04L12/02H04L41/00H04W72/23H04L7/06H04L27/2657
Inventor 刘晟罗毅
Owner HUAWEI TECH CO LTD
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