Abstract: Certain aspects of the present disclosure provide a method at a monitoring device. The method may include determining whether power is completely turned off to processing elements from a power source during a power saving state and/or whether the power is completely turned on to the processing elements from the power source during a normal power state, based on monitoring of a power controller configured to turn or off the power to the processing elements from the power source. The method may further include transmitting an alert signal when the power is not completely turned off to processing elements from the power source during the power saving state and/or the power is not completely turned on to the processing elements from the power source during the normal power state.

Abstract: An apparatus for simultaneous transmit and receive is provided. The apparatus is capable of rejecting or passing transmitter and receiver signals. The apparatus includes: a transmitter; an antenna (e.g., a shared antenna); a receiver including switches controllable by time varying signals; and a quadrature coupler including first, second, third, and fourth ports, wherein the first port is coupled to the transmitter, wherein the second port is coupled to the antenna, and wherein the third and fourth ports are coupled to the receiver.

Abstract: An apparatus for simultaneous transmit and receive is provided. The apparatus is capable of rejecting or passing transmitter and receiver signals. The apparatus includes: a transmitter; an antenna (e.g., a shared antenna); a receiver including switches controllable by time varying signals; and a quadrature coupler including first, second, third, and fourth ports, wherein the first port is coupled to the transmitter, wherein the second port is coupled to the antenna, and wherein the third and fourth ports are coupled to the receiver.