A frequency conversion system with improved performance. In one embodiment an image reject mixer is used to perform frequency conversion providing an initial degree of suppression of the image and local oscillator leakage signals, and a signal to noise enhancer (SNE) is used to further suppress the image and local oscillator signals, the signal to noise enhancer being a nonlinear passive device that attenuates low-power signals while transmitting high power signals with little loss. The signal to noise enhancer may be fabricated as a thin film of yttrium iron garnet (YIG) epitaxially grown on a gadolinium gallium garnet (GGG) substrate, the GGG substrate secured to a microwave transmission line from the input to the output of the signal to noise enhancer, such that the thin film of yttrium iron garnet is close to the transmission line.

A single-sideband phase-sensitive detection method is provided. A time-dependent target signal of a to-be-detected system is repeatedly triggered. A plurality of modulation signal sets varying in modulation phase corresponding to a plurality of triggering moments are generated. The time-dependent target signal is modulated based on the plurality of modulation signal sets corresponding to each of the triggering moments to obtain a plurality of detection signal sets varying in time and modulation phase. The plurality of detection signal sets are processed to obtain a plurality of equivalent single-sideband modulation signal sets. The plurality of equivalent single-sideband modulation signal sets are demodulated to obtain a plurality of processed signals. A single-sideband phase-sensitive detection system, device, storage medium and computer program product are also provided.

A single-sideband phase-sensitive detection method is provided. A time-dependent target signal of a to-be-detected system is repeatedly triggered. A plurality of modulation signal sets varying in modulation phase corresponding to a plurality of triggering moments are generated. The time-dependent target signal is modulated based on the plurality of modulation signal sets corresponding to each of the triggering moments to obtain a plurality of detection signal sets varying in time and modulation phase. The plurality of detection signal sets are processed to obtain a plurality of equivalent single-sideband modulation signal sets. The plurality of equivalent single-sideband modulation signal sets are demodulated to obtain a plurality of processed signals. A single-sideband phase-sensitive detection system, device, storage medium and computer program product are also provided.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a frequency dependent residual sideband (FDRSB) indication that indicates an average FDRSB power level associated with at least one transmission antenna of a network node. The UE may receive a communication from the network node, the receiving comprising demodulating the communication based on a state of an FDRSB correction function of the UE, the state of the FDRSB correction function being based on at least one of the average FDRSB power level or an estimated total noise level. Numerous other aspects are described.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a frequency dependent residual sideband (FDRSB) indication that indicates an average FDRSB power level associated with at least one transmission antenna of a network node. The UE may receive a communication from the network node, the receiving comprising demodulating the communication based on a state of an FDRSB correction function of the UE, the state of the FDRSB correction function being based on at least one of the average FDRSB power level or an estimated total noise level. Numerous other aspects are described.

A single-sideband phase-sensitive detection method is provided. A time-dependent target signal of a to-be-detected system is repeatedly triggered. A plurality of modulation signal sets varying in modulation phase corresponding to a plurality of triggering moments are generated. The time-dependent target signal is modulated based on the plurality of modulation signal sets corresponding to each of the triggering moments to obtain a plurality of detection signal sets varying in time and modulation phase. The plurality of detection signal sets are processed to obtain a plurality of equivalent single-sideband modulation signal sets. The plurality of equivalent single-sideband modulation signal sets are demodulated to obtain a plurality of processed signals. A single-sideband phase-sensitive detection system, device, storage medium and computer program product are also provided.

A single-sideband phase-sensitive detection method is provided. A time-dependent target signal of a to-be-detected system is repeatedly triggered. A plurality of modulation signal sets varying in modulation phase corresponding to a plurality of triggering moments are generated. The time-dependent target signal is modulated based on the plurality of modulation signal sets corresponding to each of the triggering moments to obtain a plurality of detection signal sets varying in time and modulation phase. The plurality of detection signal sets are processed to obtain a plurality of equivalent single-sideband modulation signal sets. The plurality of equivalent single-sideband modulation signal sets are demodulated to obtain a plurality of processed signals. A single-sideband phase-sensitive detection system, device, storage medium and computer program product are also provided.

A method for channel aggregation and single sideband transmission executed in a broad-band communication system is suggested in which only I and Q versions of a purely sinusoidal local oscillator signals are needed, easing the system scaling when large numbers of channels must be aggregated. In addition to that, instead of phase shifting of an intermediate frequency broadband signal rather two intermediate frequency broadband signals are generated, which are phase shifted by +90 or by 90. As a result, the problems of frequency dependent phase shifting explained in the background section is not relevant for the method according to the present disclosure. Also, a corresponding method for image reject reception and channel separation as well as a transmitter and receiver for performing the methods are suggested.

A method for channel aggregation and single sideband transmission executed in a broad-band communication system is suggested in which only I and Q versions of a purely sinusoidal local oscillator signals are needed, easing the system scaling when large numbers of channels must be aggregated. In addition to that, instead of phase shifting of an intermediate frequency broadband signal rather two intermediate frequency broadband signals are generated, which are phase shifted by +90 or by 90. As a result, the problems of frequency dependent phase shifting explained in the background section is not relevant for the method according to the present disclosure. Also, a corresponding method for image reject reception and channel separation as well as a transmitter and receiver for performing the methods are suggested.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a frequency dependent residual side band (FDRSB) training signal via one or more time resources. The UE may transmit an indication of network node FDRSB correction information that is based at least in part on the FDRSB training signal. The UE may receive a communication, reception of the communication comprising applying a UE FDRSB correction that is based at least in part on the FDRSB training signal. Numerous other aspects are described.