4. Glossary
| Term | Definition |
|---|---|
| Discovery | The procedure of discovering nearby gateways through their periodic Beacon transmissions. |
| Downlink | Data sent from a Gateway to an Endpoint. |
| EIRP | Equivalent isotropic radiated power. |
| Endpoint (EP) | A device that accesses services of Amazon Sidewalk to transport messages to and from the application services through AWS IoT. |
| FSK | 2-Gaussian Frequency Shift Keying modulation scheme. |
| Gateway (GW) | Connections between Endpoints and Amazon Sidewalk are established and maintained through these devices. Gateways are Amazon and Ring devices. Amazon Sidewalk messages are transported between Amazon Sidewalk and the AWS IoT service through these devices. |
| PAN | Personal Area Network. In PAN configuration, there is an association between the Endpoint and the Gateway belonging to the same user. |
| RSSI | Received Signal Strength Indicator. It’s a measurement of the power present in a received radio signal. |
| Sid API | Amazon Sidewalk Application Programming Interface. |
| Uplink | Data sent from an Endpoint to a Gateway. |
| WAN | Wide Area Network. In WAN configuration, also known as roaming, there is no association made between the Gateway and Endpoint. |