Broadcom Corporation

Avago Technologies International Sales Pte. Limited

Vincent Roussel

Prasanna Desai

Thomas Francis Baker

Federico Santiago Cattivelli

Gabriel Marc Desjardins

Mohamed Abou Bakr Othman

In some aspects, the disclosure is directed to methods and systems for in-packet transmission power control. Measurement circuitry in communication with a transmission stage of a device is configured to generate a transmitted signal strength measurement signal based on an output of the transmission power amplifier during transmission of a packet. Measurement conversion circuitry connected to the measurement circuitry is configured to convert the transmitted signal strength measurement signal from the measurement circuitry to an output power measurement. Power control circuitry connected to the measurement conversion circuitry is configured to generate a power correction signal based on the output power measurement and an output power target value. Power ramping circuitry connected to the power control circuitry is configured to provide a gain signal to the transmission stage of the device based on the power correction signal.

Bluetooth in-packet power trimming

In collocated radios, interference is mitigated to permit concurrent radio operation. In response to detection of imminent transmission of interfering wireless (i.e., RF jammer) signals, gain settings of one or more stages of front-end receiver amplifiers may be quickly configured to permit concurrent frequency division operation instead of consecutive time-division operation. This expansion of concurrent operation may improve communication bandwidth and/or may produce reliable, consistent results. Gain control responsive to detection of imminent RF jamming may maintain amplification in a linear range where interference can be filtered out. Receiver gain may be shifted from a default high gain or high sensitivity setting to lower gain to maintain integrity of a signal of interest (SoI), which avoids clipping, distortion and unwanted products caused by a high power jamming signal that could otherwise make it impossible to recover the SoI. This mitigation technique supplements and/or replaces other interference mitigation techniques.

Fast detection of collocated RF jammers facilitating optimized gain setting selection of front-end receiver amplifiers

Growing community of inventors

Irvine, CA, United States of America

Vincent Roussel