Quickly understand LoRa and LoRaWAN

　　LoRa uses unlicensed sub GHz wireless frequency bands, such as 433 MHz, 868 MHz (Europe), and 915 MHz (North America). It allows long-distance transmission (suburban 10km+, urban to 2km) and can also maintain extremely low power consumption (sub uA). There are two ways to express this technology: LoRa, physical layer; LoRaWAN (Long Range Wide Area Network), upper layer.

　　LoRa, as a long-distance wireless communication technology, is an effective supplement to NB IoT and LTE Cat M1. Compared to traditional cellular technology, LoRa can achieve an extremely long distance of 100km+LOS while sacrificing data rate. Due to speed limitations (<50kbps) and duty cycle limitations, LoRa is more suitable for non real time applications that can tolerate large delays.

　　LoRa is a physical layer technology that uses CSS (chip spread spectrum) modulation. It is the first low-cost CSS implementation for commercial use.

　　LoRa can serve as an alternative solution to IoT in various industrial application scenarios.

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