Skyworks Solutions, Inc.

Lige Wang

Anand Raghavan

Srivatsan Jayaraman

Jin Hoon Cho

Aspects of the disclosure provide a front-end module for a wireless device comprising at least one transmit path configured to provide a first sounding reference signal, at least one transmit/receive path coupled to at least one antenna port, a sounding-reference-signal port configured to provide the first sounding reference signal and to receive a second sounding reference signal, an antenna switching module coupled between the at least one transmit path, the at least one transmit/receive path, and the sounding-reference-signal port, the antenna switching module being configured to provide the first sounding reference signal from the transmit path to the at least one transmit/receive path and the sounding-reference-signal port and to provide the second sounding reference signal received at the sounding-reference-signal port to the at least one transmit/receive path.

Unified sounding reference signal input/output functionality

A system for preventing power amplifier supply voltage saturation includes a multiple stage voltage regulator configured to provide a regulated voltage, a power amplifier configured to receive the regulated voltage, and a saturation protection circuit configured to apply a current into a first stage of the multiple stage voltage regulator when the regulated voltage reaches a reference voltage, the applied current causing a subsequent stage of the multiple stage voltage regulator to prevent the regulated voltage from exceeding the reference voltage.

Growing community of inventors

Cedar Rapids, IA, United States of America

Lige Wang