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Communication system, gateway, terminal and communication method

A communication method and terminal technology, applied in the field of communication

Active Publication Date: 2019-12-27
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Obviously, this method of reducing power consumption is only suitable for low-frequency one-way data transmission systems

Method used

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  • Communication system, gateway, terminal and communication method
  • Communication system, gateway, terminal and communication method
  • Communication system, gateway, terminal and communication method

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Embodiment Construction

[0073] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0074] The communication method provided in this embodiment is applicable to a LoRa-based wireless communication system or a FSK-based wireless communication system using a preamble mechanism. The following takes the LoRa wireless communication system as an example to illustrate.

[0075] refer to figure 1 Shows a communication system architecture diagram based on LoRa technology. The communication system may include a terminal 11 and a gateway 12 , and may also include a server 13 . The terminal 11 can be used to collect information and upload data through LoRa wireless signals; the gateway 12 can be used to relay the data uploaded by the terminal 11 and the data sent by the server 13 to the terminal 11; the server 13 is used t...

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Abstract

The invention provides a communication system, a gateway, a terminal and a communication method, the communication method applied to the terminal comprises the following steps: receiving a first datapacket sent by the gateway, the first data packet comprising a first lead code; sending a second data packet to the gateway, wherein the second data packet comprises a second lead code; wherein the length of the first preamble is greater than that of the second preamble. The length of the second preamble sent by the terminal is smaller than that of the first preamble sent by the gateway, so that the power consumption of the terminal can be greatly reduced for the terminal which interactively and frequently sends data, and in addition, as the shorter second preamble occupies a small number of channels, the number of terminals mounted on the same gateway can be increased.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a communication system, a gateway, a terminal and a communication method. Background technique [0002] LoRa is a long-distance wireless transmission technology based on spread spectrum technology. In fact, it is also one of many LPWAN communication technologies. It was first adopted and promoted by the American Semtech company. This solution provides users with a simple wireless communication method that can realize long-distance and low power consumption. At present, LoRa mainly operates in the ISM frequency band, mainly including 433, 868, 915MHz and so on. [0003] The advantage of LoRa (Long Range, wide distance) lies in the long-distance capability in terms of technology. A single gateway or base station can cover an entire city or hundreds of square kilometers. At a given location, the distance depends heavily on the environment or obstacles. [0004] In order to...

Claims

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Application Information

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IPC IPC(8): H04W88/16H04L5/00G08C17/02
CPCH04W88/16G08C17/02H04L5/0053H04W52/0235H04W52/0229Y02D30/70H04L5/0048H04L5/0096
Inventor 赵凯邓伟倪攀
Owner BOE TECH GRP CO LTD
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