LPWAN wireless multi-user access network structure and control method thereof

A multi-user access and network structure technology, which is applied in the low-power wide area network wireless multi-user access network structure and its control field, can solve problems such as random access channel congestion and conflict, and achieve strong operability of communication protocols. , economical and practical, to achieve simple effects

Active Publication Date: 2019-04-05
JIANGSU ELECTRIC POWER CO +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Effectively solve the problem of random access channel congestion and conflicts of a large number of terminals and the real-time reporting requirements of high-priority user services, and realize reliable and orderly access between the gateway and tens of thousands of IoT terminals

Method used

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  • LPWAN wireless multi-user access network structure and control method thereof
  • LPWAN wireless multi-user access network structure and control method thereof
  • LPWAN wireless multi-user access network structure and control method thereof

Examples

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Embodiment Construction

[0028] In the following, a specific example of the invention of an LPWAN wireless multi-user access network structure and its control method will be described in detail in conjunction with the accompanying drawings.

[0029] figure 1 It is a structural diagram of the LPWAN wireless network of the present invention, and the network consists of a star network topology composed of a wireless gateway and multiple wireless terminals. As the control center of the network, the wireless gateway is responsible for the establishment and management of the network. After the terminal is powered on, it detects the downlink broadcast channel and synchronization beacon of the gateway at a defined frequency point, actively sends a network access request signal, and registers with the gateway. Priority assigns endpoint addresses. The terminals cannot communicate with each other, and there is only one path from the terminal to the gateway, and the two-way communication between the gateway and ...

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Abstract

The invention discloses an LPWAN wireless multi-user access network structure and a control method thereof. According to the network, one wireless gateway and multiple wireless terminals form a star-shaped network topology structure; the multilevel distributed topology structure of the network is established based on the service priority, the wireless terminals in the LPWAN is divided into three levels according to the service priority, classified according to the service type, partitioned according to service association therebetween, and distributed with address codes respectively; the large-area terminals in the highest priority access the network by address 1-N polling in a query manner, and reliable access is ensured; and to reduce the polling period, the service terminal in the secondary priority access the network in a random competition way. The problem of channel congestion and conflict when a lot of terminals access the network randomly is solved, the real-up service report requirement of users in high priority is met, and reliable and ordered access between the gateway and thousands of IoT terminals can be realized.

Description

technical field [0001] The invention relates to the communication field of the computer Internet of things, in particular to a low power consumption wide area network (LPWAN) wireless multi-user access network structure and a control method thereof. Background technique [0002] LPWAN (Low-Power Wide-Area Network) is a low-power wireless communication wide-area network that can achieve network coverage of several kilometers or even dozens of kilometers. Due to its wide network coverage and low terminal power consumption, it is more suitable for large-scale IoT application deployment. Compared with the traditional Internet of Things technology, LPWAN technology has obvious advantages of low bandwidth, low power consumption, long distance, and a large number of connections. LPWAN can be divided into two categories: one is LoRa, SigFox and other technologies that work in unlicensed spectrum; the other is 2 / 3 / 4G cellular communication technology that works in licensed spectrum ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W74/00H04W74/02H04W28/02H04W28/04H04W60/00H04L12/927H04L47/80
CPCH04L47/805H04W28/0289H04W28/04H04W60/00H04W74/004H04W74/006H04W74/02Y02D30/70
Inventor 荀思超周红军刘晓宏李冬华沈雨生胥峥肖红谊
Owner JIANGSU ELECTRIC POWER CO
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