A method by which a first network node cancels a self-interference signal when operating in a full duplex radio (FDR) mode in a wireless network can comprise the steps of: cancelling a self-interference signal on the basis of frequency synchronization estimation of the self-interference signal when frequencies of a reception signal received from a second network node and the self-interference signal are asynchronous; and estimating frequency synchronization of the reception signal by using a residual signal according to the cancellation of the self-interference signal, and detecting the reception signal on the basis of the frequency synchronization estimation of the reception signal.

A method by which a first network node cancels a self-interference signal when operating in a full duplex radio (FDR) mode in a wireless network can comprise the steps of: cancelling a self-interference signal on the basis of frequency synchronization estimation of the self-interference signal when frequencies of a reception signal received from a second network node and the self-interference signal are asynchronous; and estimating frequency synchronization of the reception signal by using a residual signal according to the cancellation of the self-interference signal, and detecting the reception signal on the basis of the frequency synchronization estimation of the reception signal.

Provided are a base station, user equipment and wireless communication method related to RS collision cancellation in full duplex communication. A base station comprises: circuitry operative to perform at least one of a first processing and a second processing on downlink signals to be transmitted on a physical resource unit in a full duplex mode corresponding to one Transmission Time Interval (TTI); a transmitter operative to transmit the processed downlink signals on the physical resource unit to a first user NO equipment in a TTI; and a receiver operative to receive uplink signals on the physical resource unit from a second user equipment, wherein the first processing is use to be performed such that Code Division Multiplexing (CDM) is applied between the downlink signal and the uplink signal assigned on each of at least part of collided resource elements in the physical resource unit, each of the collided resource elements being assigned with both a downlink signal and an uplink signal at least one of which is a reference signal, and the second processing comprises suppressing at least part of the downlink signals assigned on the resource elements assigned with uplink reference signals thereon in the collided resource elements.

Provided are a base station, user equipment and wireless communication method related to RS collision cancellation in full duplex communication. A base station comprises: circuitry operative to perform at least one of a first processing and a second processing on downlink signals to be transmitted on a physical resource unit in a full duplex mode corresponding to one Transmission Time Interval (TTI); a transmitter operative to transmit the processed downlink signals on the physical resource unit to a first user NO equipment in a TTI; and a receiver operative to receive uplink signals on the physical resource unit from a second user equipment, wherein the first processing is use to be performed such that Code Division Multiplexing (CDM) is applied between the downlink signal and the uplink signal assigned on each of at least part of collided resource elements in the physical resource unit, each of the collided resource elements being assigned with both a downlink signal and an uplink signal at least one of which is a reference signal, and the second processing comprises suppressing at least part of the downlink signals assigned on the resource elements assigned with uplink reference signals thereon in the collided resource elements.

For fast and dynamic adaptation of downlink (DL) and uplink (UL) resource, DL/UL resource switching at a symbol level or at a sub-symbol level is proposed. In detail, a network node transmits s DL data in a first symbol, and receives UL data in a second symbol, which is the next symbol of the first symbol.

For fast and dynamic adaptation of downlink (DL) and uplink (UL) resource, DL/UL resource switching at a symbol level or at a sub-symbol level is proposed. In detail, a network node transmits s DL data in a first symbol, and receives UL data in a second symbol, which is the next symbol of the first symbol.

The multi-channel radio frequency module with frequency division of data reception and transmission contains at least two radiating elements; at least two received signal filters and at least two transmitted signal filters, each of which is tuned to pass the received and transmitted signal accordingly in a certain frequency band; at least two radio frequency receivers, each of which is connected to the received signal filter; and at least two radio frequency transmitters, each of which is connected to the transmitted signal filter. Radiating elements having two input ports; one of which is connected to the received signal filter, and the other to the transmitted signal filter, the passbands of these filters being non-overlapping. Application of the invention allows the miniaturization of the microwave PtP communication station while simultaneously providing efficient electronic beam scanning with small signal loss for beam switching and high isolation between receivers and transmitters.

The multi-channel radio frequency module with frequency division of data reception and transmission contains at least two radiating elements; at least two received signal filters and at least two transmitted signal filters, each of which is tuned to pass the received and transmitted signal accordingly in a certain frequency band; at least two radio frequency receivers, each of which is connected to the received signal filter; and at least two radio frequency transmitters, each of which is connected to the transmitted signal filter. Radiating elements having two input ports; one of which is connected to the received signal filter, and the other to the transmitted signal filter, the passbands of these filters being non-overlapping. Application of the invention allows the miniaturization of the microwave PtP communication station while simultaneously providing efficient electronic beam scanning with small signal loss for beam switching and high isolation between receivers and transmitters.

The purpose of the present invention is to realize bidirectional communication in a facility communication system to which facility apparatuses having different communication speeds are connected. The purpose is achieved by a facility apparatuses that is connected to a facility communication network containing a mix of a first facility apparatus supporting a first communication speed and a second facility apparatus supporting a second communication speed, and that is configured so as to: output communication information indicating the start of communication at the second communication speed to the second facility apparatus through communication at the first communication speed; switch the communication speed by a high-low speed switching unit; output communication information by using communication at the second communication speed; and output communication information to the first facility apparatus through communication at the first communication speed.

The purpose of the present invention is to realize bidirectional communication in a facility communication system to which facility apparatuses having different communication speeds are connected. The purpose is achieved by a facility apparatuses that is connected to a facility communication network containing a mix of a first facility apparatus supporting a first communication speed and a second facility apparatus supporting a second communication speed, and that is configured so as to: output communication information indicating the start of communication at the second communication speed to the second facility apparatus through communication at the first communication speed; switch the communication speed by a high-low speed switching unit; output communication information by using communication at the second communication speed; and output communication information to the first facility apparatus through communication at the first communication speed.