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Multi-mode scatter communication system compatible with WiFi and/or LoRa

A scatter communication, multi-mode technology, applied in the field of scatter communication, can solve problems such as single communication mode, and achieve the effect of high compatibility

Active Publication Date: 2019-02-19
NO 719 RES INST CHINA SHIPBUILDING IND
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is that, in view of the technical defect that each communication system in the prior art has a single communication mode, the patent of the present invention proposes a variety of compatible WiFi and / or LoRa multi-mode scattering communication systems, which can be used in the same digital system A variety of scatter communication systems are realized on top of it, forming a general architecture for multi-mode scatter communication

Method used

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  • Multi-mode scatter communication system compatible with WiFi and/or LoRa
  • Multi-mode scatter communication system compatible with WiFi and/or LoRa
  • Multi-mode scatter communication system compatible with WiFi and/or LoRa

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Embodiment Construction

[0060] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.

[0061] The present invention proposes a multi-mode scatter communication system compatible with WiFi and / or LoRa, such as figure 1 shown. First, the base station generates a single-frequency signal of a frequency band covered by various communication modes, and radiates the single-frequency electromagnetic signal into the surrounding space through the antenna. The data to be sent by the scatter communication system is coded according to the corresponding communication protocol to form a baseband, and output a digital modulation waveform, and change the reflection / absorption state of its own antenna by driving a radio frequency switch device, thereby forming different types of communication data packets, which are finall...

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Abstract

The invention provides a multi-mode scatter communication system compatible with WiFi and / or LoRa. Multiple scatter communication systems can be implemented on the same digital system, and a general architecture of multi-mode scatter communication is formed. Therefore, the invention is more versatile, flexible, reconfigurable, and compatible than the background art. The first scheme can realize scatter communication in different modes only by changing an antenna and changing the software configuration of a digital baseband processor. The second scheme can realize multi-mode scatter communication of mutually independent channels, and the multiple channels can simultaneously communicate without channel clogging. The third scheme can realize multiple modes of scatter communication in a frequency band covered by the multi-frequency antenna in a time division multiplexing manner.

Description

technical field [0001] The present invention relates to the field of scatter communication, more specifically, to a multi-mode scatter communication system compatible with WiFi and / or LoRa. Background technique [0002] In early 2017, Bryce Kellogg of the University of Washington and others proposed passive WiFi scattering communication technology in the paper "Passive Wi-Fi: Bringing Low Power to Wi-Fi Transmissions"; in September of the same year, Vamsi Talla of the University of Washington and others in the The LoRa scattering communication technology is proposed in the paper "LoRa Backscatter: Enabling The Vision of Ubiquitous Connectivity". Because there is no need for power-consuming units such as radio frequency synthesizers, high-speed analog-to-digital converters, modems, and power amplifiers, the scattering communication technology can effectively reduce communication power consumption. [0003] In 2018, Tang Xiaoqing and others from the 719th Research Institute o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/22H04B1/401H04B1/00H04W88/06
CPCH04B1/006H04B1/0064H04B1/401H04B7/22
Inventor 唐晓庆张帅张超佘亚军谢桂辉
Owner NO 719 RES INST CHINA SHIPBUILDING IND
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