LoRa communication method and LoRa communication system

Abstract

The invention discloses a LoRa communication method and a LoRa communication system, and the method comprises the steps: entering a downlink effective time interval, and enabling a service node to work in a transmitting state and transmit downlink data to a downlink channel in the downlink effective time interval, wherein the plurality of terminal nodes work in a receiving state and receive downlink data from a downlink channel; entering an uplink effective time interval after the downlink effective time interval is ended, wherein in the uplink effective time interval, the plurality of terminal nodes work in a sending state and send various types of data to corresponding various types of uplink channels; enabling the service node to work in a receiving state and receiving corresponding various types of uplink data from various types of uplink channels; entering the downlink effective time interval again after the uplink effective time interval is ended, so the downlink data and the uplink data do not conflict with each other. In a word, the method and the device can achieve the effects of improving the throughput of the system and reducing the data collision.

Description

technical field [0001] The present invention relates to the communication field, in particular to a LoRa communication method and a LoRa communication system. Background technique [0002] LoRa is a long-distance, low-power, wireless communication technology suitable for the Internet of Things, refer to figure 1 , the equipment in the LoRa communication system mainly includes terminals, gateways and servers. LoRa technology is mainly used for communication between gateways and terminals, and most gateways and terminals adopt a star topology. At this stage, the main chips that support LoRa adopt half-duplex mode, that is, neither the gateway nor the terminal can perform sending and receiving operations at the same time. [0003] At present, LoRa is mainly used in services such as water and electricity meters. The data volume of such services is small and the real-time requirements are generally not high. The transmission data mainly uses the method of Aloha (that is, the da...

AI Technical Summary

Problems solved by technology

At this stage, the main chips that support LoRa adopt half-duplex mode, that is, neither the gateway nor the terminal can perform sending and receiving operations at the same time.

[0003] At present, LoRa is mainly used in services such as water and electricity meters. The data volume of such services is small and the real-time requirements are generally not high. The transmission data mainly uses the method of Aloha (that is, the data is randomly generated and sent randomly), so the management and working methods of the system are relatively Simple, but the throughput of the system is relatively low, and the probability of data collision is high

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