RF Dynamic Power Control and Radio Protection in Metering Devices

摘要

Techniques for dynamic power control of a radio of a utility data collection device (e.g., utility meter configured for wireless communications) are described that utilize a detection scheme applied to a Front End Module (FEM) in the utility data collection device. A utility data collection device measures a Voltage Standing Wave Ratio (VSWR) presented to the FEM during transmission. The result of this measurement allows the utility data collection device to dynamically control the input power to a FEM transmit portion. Utilizing these techniques, the utility data collection device can adjust to environmental changes and conditions experienced in the field.

主权项

1. A method implemented by a utility data collection device (UDCD), the method comprising:
determining, by the UDCD, a standing wave ratio in a transmission path of a front end module (FEM) in the UDCD; and controlling an input power to the transmission path of the FEM based at least in part on the measured standing wave ratio.