The Alibaba Cloud Link WAN access network software includes a gateway software development kit (SDK) and a node SDK. This software connects devices to Alibaba Cloud and creates a secure data tunnel for communication between devices and the cloud. The gateway SDK standardizes how gateways connect to different access platforms, and the node SDK standardizes the protocol stacks for nodes.
The following figure shows the service architecture:
The gateway SDK provides the following features:
Gateway monitoring: Provides real-time monitoring of gateway health, such as CPU status, memory usage, and data transmission.
Gateway over-the-air (OTA): Supports features such as OTA signature verification and power-off recovery.
Secure storage: Protects downloaded keys on the gateway to prevent theft.
The node SDK provides the following features:
LoRaWAN protocol stack: Supports LoRaWAN versions 1.0.2 and 1.1.
Group broadcast: Supports group broadcasts for downlink data transmission to significantly improve downlink channel efficiency.
AT instruction extension: Complies with the ICA standard instruction set.