LoRaWAN gateway specification and LoRaWAN protocol standard

LoRaWAN gateway specification and LoRaWAN protocol standard

　　LoRaWAN gateway is a gateway based on the low-power wide area network LoRaWAN protocol, which can realize multi-frequency and multi-channel concurrent reception. The super radio frequency processing performance enables the system to have a larger system capacity and a more stable network topology. It is the core equipment of LPWAN. The gateway uses an easy-to-understand WEB configuration interface, and can choose suitable accessories according to different application scenarios of customers. It can be widely used in smart cities, wireless meter reading, industrial automation, smart agriculture and other fields.

　　 The LoRaWAN gateway conforms to the standard LoRaWAN protocol, and is suitable for terminals and Network Servers that conform to the standard LoRaWAN. LoRaWan is a star network, the gateway transmits information between the terminal device and the back-end central network server, the gateway and the central network server are connected through a standard IP, and the terminal device communicates with one or more gateways through single-hop LoRa or FSK; Although the communication between the slave terminal and the network server is mainly uplink communication, all communication is usually two-way.

　　The communication between the terminal device and the gateway uses different channels and data rates. The choice of data rate is a compromise between the communication range and the data duration. Communication with different data rates will not interfere with each other.

The data rate of LoRa ranges from 0.3kbps to 50kbps. In order to maximize the battery life and overall network capacity of terminal devices at the same time, the LoRa network infrastructure can separately manage the data rate and radio frequency output of each terminal device through a solution that adapts to the data rate.

　　The terminal device can use any valid channel at any time and use any data rate under the premise of observing the following rules:

　　The terminal equipment uses a pseudo-random channel during each transmission, and the resulting channel diversity improves the anti-interference ability of the system;

　　The maximum transmission duty cycle of the terminal device depends on the subband used and local regulations;

　　The maximum transmission duration (or stay time) of the terminal device depends on the subband used and local regulations;