Systems, methods, apparatuses, and computer program products for beam prediction by a user equipment using angle assistance information are provided. For example, a method can include receiving assistance information from a network and measuring a plurality of reference signal transmissions from the network. The method can also include predicting best beam or reference signal received power using a model at a user equipment. The assistance information and the measurements of the plurality of reference signal transmissions are input to the model. Reporting the best beam or reference signal received power as predicted to the network can also be performed.

The present invention provides a control method of an electronic device is disclosed, wherein the electronic device includes a first antenna and a second antenna. The control method includes the steps of: setting one of the first antenna and the second antenna as a default antenna; receiving a plurality of packets within an interval; for each of the plurality of packets, comparing a signal strength corresponding to the first antenna and a signal strength of the second antenna to generate a first comparison result; updating a first value or a second value according to the first comparison result; comparing the first value and the second value to generate a second comparison result when running out the interval; and selecting one of the first antenna and the second antenna to be the default antenna according to the second comparison result.

Techniques are disclosed for self-interference signal cancellation. A spectral density measurement system includes a self-interference cancellation circuit configured to generate a cancellation signal based on a first radio signal and a second radio signal, the first radio signal transmitted and the second radio signal received simultaneously. A first signal channel is configured to sample the first radio signal into a sampled first radio signal, and a second signal channel is configured to sample the second radio signal into a sampled second radio signal. The system further includes a cross power spectral density measurement module configured to generate a control signal for controlling the cancellation circuit based on the sampled first radio signal and the sampled second radio signal.

Wireless communications systems, apparatuses, and methods are provided. A method of wireless communication performed by an ambient Internet of Things (IoT) devices may include receiving, from a first wireless communication device, a first signal. The ambient IoT device may be powered by energy transmitted by the first wireless communication device. The method may further include selecting, based on at least one of an energy conversion efficiency associated with the first signal or a communication link quality associated with the first wireless communication device, a second wireless communication device, and receiving, from the second wireless communication device, a second signal.

An electronic device is provided. The electronic device includes a plurality of antennas configured to transmit and/or receive an RF signal related to non-terrestrial network communication, memory, comprising one or more storage media, storing instructions and a plurality of tune codes, and at least one processor communicatively coupled to the plurality of antennas and the memory, wherein the instructions, when executed by the at least one processor individually or collectively, cause the electronic device to set an operation mode of at least one antenna among the plurality of antennas to be a reception mode based on of a first tune code among the plurality of tune codes, receive, through the plurality of antennas, an RF signal associated with the non-terrestrial network communication in the reception mode, identify a first parameter associated with the received RF signal, identify whether the value of the first parameter exceeds a first value, and based on identifying that the value of the first parameter exceeds the first value, change the operation mode of the at least one antenna to a transmission mode based on a second tune code different from the first tune code among the plurality of tune codes.

Described herein are systems, methods, and other techniques for aligning a terminal in a satellite communication system. An indicator of a test slot is sent to the terminal to designate a specific frequency allocation for testing. The satellite obtains a set of multi-slot power measurements based on signals received, including a first signal transmitted by the terminal on the test slot. The measurements are transmitted by the satellite to a ground station in a second signal. A set of power measurements specifically for the test slot are extracted from the multi-slot power measurements. The extracted power measurements are transmitted by a gateway to the satellite in a third signal and then from the satellite to the terminal in a fourth signal. These power measurements are utilized by the terminal to perform pointing and cross polarization alignment and power adjustment.

The present disclosure relates to a method (100) for monitoring radio frequency, RF, signals comprising the steps of obtaining (101) an RF signal, the RF signal having an input power. Further, the method comprises extracting (102) a pre-determined portion of said input power to obtain a decoupled RF signal and splitting (103) said decoupled RF signal into a first and a second RF signal. Furthermore, the method comprises altering (104) a frequency response of the second RF signal, determining (105) a power level of the first RF signal and the altered second RF signal and determining (106) a frequency of said RF signal based on a comparison of said power levels of said first RF signal and altered second RF signal.

An antenna measurement device estimating an element electric field of a plurality of element antennas in a transmission device including an array antenna including the element antennas where an excitation weight indicating an amplitude and a phase with respect to each of the plurality of element antennas is changed, the antenna measurement device including: a probe antenna to receive a high-frequency signal radiated by the array antenna; a receiver to detect a reception signal received by the probe antenna and output an array response that is the detected reception signal in chronological order; and an element electric field estimating unit to estimate an element electric field of each of the plurality of element antennas using a Kalman filter that receives inputs of an array response output from the receiver in chronological order and an excitation weight vector obtained by the excitation weight for each of the plurality of element antennas.