The disclosure relates to a method and device for efficiently estimating a self-interference channel in an FD communication system. A method for estimating a self-interference channel by a BS in an FD communication system includes transmitting, to a first UE, information about an uplink resource where uplink reception from the first UE is muted; and estimating a self-interference channel related to downlink transmission in a period corresponding to the uplink resource where uplink reception is muted during downlink transmission to a second UE, based on the transmitted information.

An anti-interference control apparatus and method, a terminal device, and a computer-readable storage medium are disclosed. The anti-interference control apparatus may include: an interference detection assembly, connected to a millimeter wave antenna module, and configured for determining, according to a channel quality parameter from the millimeter wave antenna module, whether a millimeter wave signal emitted by the millimeter wave antenna module is interfered; an interference source detection assembly, connected to the interference detection assembly, and configured for detecting location information of an interference source when the interference detection assembly determines that the millimeter wave signal emitted by the millimeter wave antenna module is interfered; and a control assembly, connected to the interference source detection assembly, and configured for performing, according to the location information from the interference source detection assembly, anti-interference processing corresponding to the location information. The terminal device includes the millimeter wave antenna module.

Provided is a wireless communication system that detects an object inside a communication area including: a base station device; and a terminal device, in which the base station device controls a timing for transmitting a reference signal for measuring a state of a propagation path on the basis of a pilot signal included in a wireless signal received from the terminal device during wireless communication and detects an object inside the communication area on the basis of propagation state information indicating a state of the propagation path received from the terminal device during wireless sensing, and the terminal device transmits, to the base station device, propagation state information measured on the basis of a reference signal received from the base station device. It is thus possible to transmit the reference signal for measuring a state of the propagation path without degrading a throughput of wireless communication.

The present invention relates to operating an RF system (100) comprising multiple nodes (26, 28, 30) for transmitting and/or receiving RF messages (34). RF messages transmitted by a transmitting node (26) are received at receiving nodes (28, 30). It is determined whether the RF messages were completely received. Upon missing at least part of the RF messages at the receiving nodes, it is determined whether missing of at least part of the RF messages is caused by an activity event of a tangible entity (32) in transmission paths (40) between the transmitting node and the receiving nodes based on one or more RF system criteria. The RF messages (34) may include RF-based sensing messages (36) and RF data messages (38). A discrepancy between missed parts of the RF-based sensing messages and missed parts of the RF data messages may be determined and included in the RF system criteria.

A method for determining a quantity of passive inter-modulation sources. A quantity of passive inter-modulation sources of a multi-antenna device is obtained. An interference signal that is excited by a sounding signal and that is from a passive inter-modulation source is received. Singular value decomposition is performed on a first matrix corresponding to the interference signal. A quantity of passive inter-modulation sources is determined based on a result of the singular value decomposition. In this way, the quantity of passive inter-modulation sources of the multi-antenna device is directly determined by performing operations including signal receiving and sending and calculation of the multi-antenna device, to implement convenient, accurate, and secure detection of information about the quantity of the passive inter-modulation sources of the multi-antenna device.

An anti-interference control apparatus and method, a terminal device, and a computer-readable storage medium are disclosed. The anti-interference control apparatus may include: an interference detection assembly, connected to a millimeter wave antenna module, and configured for determining, according to a channel quality parameter from the millimeter wave antenna module, whether a millimeter wave signal emitted by the millimeter wave antenna module is interfered; an interference source detection assembly, connected to the interference detection assembly, and configured for detecting location information of an interference source when the interference detection assembly determines that the millimeter wave signal emitted by the millimeter wave antenna module is interfered; and a control assembly, connected to the interference source detection assembly, and configured for performing, according to the location information from the interference source detection assembly, anti-interference processing corresponding to the location information. The terminal device includes the millimeter wave antenna module.

Aspects of the subject disclosure may include, for example, receiving, via an antenna, a communication signal generated by a communication device, and detecting interference in the communication signal, wherein the interference is generated by one or more interference sources, wherein the interference is detected by monitoring a near field region of the antenna, an intermediate field region of the antenna, a far field region of the antenna, or any combinations thereof, wherein the monitoring excludes monitoring only the far field region of the antenna. Other embodiments are disclosed.

A clock correction method suitable for a communication device comprising a clock correction circuit comprises: in response to the communication device being enabled and entering an active mode, calculating, by the clock correction circuit, a clock-period ratio between a slow clock and a fast clock; in response to the communication device operating in a power-saving mode for a power-saving period, counting at least one rising edge of the slow clock received by the clock correction circuit during the power-saving period, as a cumulative number; in response to the communication device switching to an active mode, calculating the difference between an internal time of the communication device and a reference time of another communication device as a time offset; and in the active mode, adjusting, by the clock correction circuit, the clock-period ratio by using a compensation value related to the clock-period ratio, the cumulative number and the time offset.

A receiver for a high-speed data communication interface includes a differential data signal input, a first termination resistor, a second termination resistor, and a noise measurement node. The differential data signal input includes a positive signal input and a negative signal input. The first termination resistor terminates the positive signal input to a reference voltage node. The second termination resistor terminates the negative signal input to the reference voltage node. The noise measurement node is coupled to detect common mode noise at the reference voltage node.

Embodiments disclosed herein relate to techniques for determining a maximum sensitivity degradation (MSD) value at a user equipment (UE), and sending the value to a network for scheduling a frequency band combination for uplink and/or downlink communication. The network configures the frequency band combination for the UE, and determines whether there may be potential interference when the UE uses the frequency band combination. If so, then the network sends an indication to the UE to deactivate uplink transmission. The UE then determines reference sensitivity (REFSENS) of its receiver when the network does not send a downlink transmission on the frequency band combination. The UE sets its transmitter to transmit with a predetermined (e.g., maximum) transmission power, sends uplink transmissions, and determines an interference power when operating using the frequency band combination. The UE then determines the MSD value based on the REFSENS and the interference power.