Message type-based LoRa communication method

Abstract

The invention discloses a message type-based LoRa communication method. The method includes the following steps that: step A, a service / message priority level and channel energy / interference level correspondence table is set; step B, a message priority level field is added into an access request command, an indication channel status field is added into a consent connection command, and a channel update command is added; step C, a network server detects the energy / interference level of each channel; and step D, a terminal initially accesses a corresponding channel or channel group according tothe priority level of a to-be-sent message; and step E, after the terminal accesses the channel or channel group, the network server allocates uplink channels or channel groups to the terminal according to the energy / interference level detection result of the current channel, and / or the message priority level in the terminal access request command, and / or message load quantity, and indicates an available channel in the uplink channels or channel groups. With the method of the invention adopted, communication reliability and communication efficiency can be improved.

Description

technical field [0001] The invention relates to a LoRa communication method, in particular to a message type-based LoRa communication method. Background technique [0002] Currently, the Internet of Things (IoT) is a collection of connected objects that incorporate technologies such as circuits, software, sensors, and communication protocols to collect and exchange information through wireless networks and connect to the Internet. It enables direct integration and communication between the physical and digital worlds. The Internet of Things will generate vast amounts of information that can be used to optimize resources of all kinds and increase the efficiency of increasingly interconnected systems. IoT will also enhance or generate new service models, creating sustainable and growing value for enterprises, consumers and the overall environment. Today, IoT has impacted the business models of many industries and services, such as consumer electronics, automotive, electricit...

AI Technical Summary

Problems solved by technology

If high-priority messages / emergency messages (such as emergency messages sent by smoke detector terminals) and low-priority messages / non-urgent messages (such as non-urgent messages sent by water meters / electricity meters) use channels in the same channel group , it may be that non-emergency messages occupy more resources, resulting in unsuccessful sending of emergency messages for a long time, resulting in a decline in LoRa wireless communication performance or reliability cannot be guaranteed

[0016] 2. In LoRa wireless communication, different messages may have different load sizes. The minimum load of LoRa messages is 50bytes, and the maximum is 230bytes. The load size is different, and the channel time occupied when sending messages will be different. If in the same channel group The number of messages with medium and large loads is relatively large, and the channel time in the channel group is occupied for a long time. As a result, some messages with small loads fail to send data for a long time, resulting in a decline in communication performance or communication reliability.

[0017] 3. The existing LoRaWAN protocol does not define the parameters of message type (emergency message or non-urgent message, etc.) or message priority level, and the content of the LoRaWAN protocol needs to be further optimized

Images