Abstract: A method for cancelling self-interference by a base station that uses a full duplex radio (FDR) scheme may comprise the steps of: transmitting, to a terminal, information associated with reference signal (RS) power boosting, which has been changed for estimation of a self-interference channel; transmitting an RS on the basis of the changed RS power boosting; estimating the self-interference channel according to the RS; and cancelling the self-interference on the basis of the estimation of the self-interference channel.

Abstract: A method for transmitting and receiving data in a wireless communication system and an apparatus for the method are disclosed. More specifically, The present invention provides a method for transmitting downlink data in a wireless communication system can comprise mapping, by a eNB, first downlink data into a physical downlink shared channel (PDSCH) region according to a radio frame structure based on a first transmission time interval (TTI), mapping, by the eNB, second downlink data to a short PDSCH (sPDSCH) region according to a radio frame structure based on a second TTI, and transmitting, by the eNB, the first and the second downlink data.

Abstract: Provided is a non-orthogonal multiple access method, which: randomly selects a physical resource for performing non-orthogonal multiple access among the contention-based data transmission areas defined in advance; selects a reference signal sequence for a contention-based data transmission through the selected physical resource; selects a contention resource for the contention-based data transmission; selects a scrambling sequence to be applied to data transmission in the contention-based data transmission; and transmitting a data channel including data and a reference signal corresponding to the selected reference signal sequence through the selected physical resource, wherein the data channel is transmitted by allowing the selected scrambling sequence to be applied thereto.

Abstract: The present invention relates to a signal transceiving method for detecting site-specific ray characteristics information unique to millimeter wave (mm Wave) links and detecting rich resolvable rays, and to device supporting same. The method for a terminal ray-scanning in a wireless access system supporting millimeter wave technology, according to one embodiment of the present invention, comprises the steps of: receiving a synchronization signal to synchronize with a base station; synchronizing with the base station using the synchronization signal; receiving, from the base station, pilot signals having different configuration patterns according to each transmitting antenna port; and ray-scanning using the pilot signals.

Abstract: A method for supporting a sporadic high-capacity packet service by a terminal may comprise the steps of: receiving, from a base station, control information including pre-defined timing information for synchronization and resource allocation information associated with the terminal; when uplink traffic occurs, performing transmission synchronization on the basis of the pre-defined timing information for synchronization; selecting a resource for uplink data transmission on the basis of the resource allocation information; and transmitting uplink data through the selected resource.

Abstract: The present invention relates to a method and device for ordering the measuring of Inter-Device Interference (IDI) for a base station in a wireless communication system. In particular, the method is characterized by comprising the steps of: transmitting downlink allocation information on a certain wireless resource to a first terminal; ordering the measuring of IDI to the first terminal when the certain wireless resource is allocated for uplink communication by at least one second terminal; ordering the transmitting of a reference signal defined for measuring IDI for the at least one second terminal; and transmitting reference signal measurement information, allocated to the at least one second terminal, to the first terminal.

Abstract: Disclosed is a method for uplink transmission and reception in a wireless communication system and an apparatus therefor. Particularly, a method for performing uplink transmission by a user equipment (UE) in a wireless communication system includes: receiving sounding reference signal (SRS) resource configuration information form a base station, in which the SRS resource configuration information includes SRS resource information and association configuration information between a first SRS and a second SRS that is a target of the SRS resource configuration information; and transmitting precoded the second SRS to the base station on an SRS resource indicated by the SRS resource information, and the second SRS may be transmitted based on the precoding applied to the first SRS indicated by the association configuration information.

Abstract: A method for a FDR scheme-using communication device transmitting reference signals for estimating a channel of a non-linear self-interference signal comprises the step of transmitting, on a specific symbol of a corresponding subframe, reference signals for estimating the channel of the non-linear self-interference signal, wherein a sequence mapped to the reference signals is a sequence generated in a frequency domain by being discrete Fourier transform (DFT)-converted, and the generated sequence may be mapped, on the frequency domain, to a RE for the reference signals.

Abstract: A method for stably operating an FDR mode by a terminal in a wireless communication system supporting the full-duplex radio (FDR) mode comprises the steps of: if a residual self-interference signal is changed to a predetermined threshold or higher in a terminal, transmitting information about the changed residual self-interference signal to a base station; and receiving from the base station a downlink signal on the basis of a modulation and coding scheme (MCS) level that corresponds to the information about the changed residual self-interference signal.

Abstract: A method for removing a self-interference signal by a device supporting an FDR mode can further comprise the steps of: transmitting a signal to a counterpart node in a predetermined time interval; generating, in an RF stage of the device, a residual self-interference signal after removal of an analog self-interference signal with respect to the signal and then storing same; and receiving from the counterpart node an ACK/NACK signal with respect to the transmission of the signal; and determining whether or not the stored residual self-interference signal is to be used thereafter on the basis of the ACK/NACK signal.

Abstract: A resource allocation method for controlling, by a base station, inter-cell interference in a wireless communication system operating in a flexible duplex mode on a cell-by-cell basis may comprise the steps of: receiving, from an adjacent base station, information on a resource for downlink only, allocated to an adjacent cell to which the adjacent base station belongs, in a predetermined subframe; and allocating, to terminals in a cell to which the base station belongs, a resource for the cell, which corresponds to the resource for downlink only, allocated to the adjacent cell, as a resource for downlink only, on the basis of the information on the resource.

Abstract: A method for removing a self-interference signal by a device supporting an FDR mode can further comprise the steps of: transmitting a signal to a counterpart node in a predetermined time interval; generating, in an RF stage of the device, a residual self-interference signal after removal of an analog self-interference signal with respect to the signal and then storing same; and receiving from the counterpart node a NACK signal with respect to the transmission of the signal; retransmitting the signal to the counterpart node; and, if decoding of the signal which has been received in the predetermined time interval is successful, using only a part of the stored residual self-interference signal when removing a digital self-interference signal on the basis of the retransmission.

Abstract: A method and a device for performing communication by using a non-orthogonal code multiple access scheme in a wireless communication system are provided. Particularly, a terminal receives control information from a base station. The terminal modulates or demodulates a terminal-specific NCC on the basis of the control information. The terminal performs the non-orthogonal code multiple access scheme by using the terminal-specific NCC. The control information includes information on a codeword composed of a Grassmannian sequence. The codeword is included in a codebook predefined for the non-orthogonal code multiple access scheme. Each coefficient of the Grassmannian sequence is quantized on the basis of an M-quadrature amplitude modulation (M-QAM) constellation.

Abstract: Provided is a transmission device for transmitting data in a wireless communication based on DFT-spread OFDM. Specifically, provided is a transmission device which outputs a first sub-band and a second sub-band by performing DFT on an input symbol with a tail part and a head part in which at least one 0 has been inserted by a DFT block controlled by a processor, outputs a signal by performing IDFT on the first sub-band which has been mapped by a first IDFT block, allows the signal to be filtered by a first band pass filter, outputs a signal by performing IDFT on the second sub-band which has been mapped by a second IDFT block, and allows the signal to be filtered by a second band pass filter.

Abstract: A method and a device for transmitting control information to be used in a terminal are provided. Specifically, an asynchronous level of a terminal supporting an asynchronous transmission mode is measured by using a signal received from the terminal. It is determined whether a measured value of the asynchronous level exceeds a threshold value, and if the asynchronous level is exceeded, a filter length and a CP length, which are to be used in the terminal, are changed. Information on the changed filter length and CP length is transmitted to the terminal. A sum of the filter length and the CP length is fixed, a characteristic of out-of-band emission improves when the filter becomes long in length, and interference occurring due to a multi-path delay can be prevented when the CP length becomes long.

Abstract: An apparatus for removing self-interference in an environment supporting an FDR method according to the present invention may comprise: an analog self-interference removal unit that is constructed to remove a first analog self-interference by subtracting a self-interference signal received through a first delay circuit connected between an RF transmission chain and an RF reception chain of the apparatus from a self-interference signal received at a first circuit of the RF reception chain of the apparatus, and that is constructed to remove a second analog self-interference by subtracting a self-interference signal received through a second delay circuit connected between the RF transmission chain and the RF reception chain of the apparatus from a self-interference signal received at a second circuit of the RF reception chain of the apparatus; and a processor that is constructed to determine whether the first and the second analog self-interference removals were respectively successful on the basis of the respe

Abstract: Provided are a method and an apparatus for allocating, by a first OFDM system and a second OFDM system, frequency resources, which are multiplexed in a frequency region, in a wireless communication system. Specifically, the sizes of the frequency resources of the first OFDM system, which corresponds to an existing OFDM, and the second OFDM system, which corresponds to a UF-OFDM, are determined. Adjacent subcarriers are instructed to allocate any one of a guard carrier and a subcarrier to which null data is allocated, while performing frequency resource allocation between the first and second OFDM systems in accordance with the determined sizes of the frequency resources. The information regarding the frequency resource allocation, which comprises information indicative of either the guard carrier or the subcarrier, is transmitted.

Abstract: The method for a terminal for receiving data for each service from a particular frame in a wireless communication system according to the present invention comprises the steps of: receiving, from a base station, a first control channel comprising first control information associated with a first service; receiving, from the base station and on the basis of the control information, a first data channel utilized for transmitting the first service; receiving, from the base station, a second control channel comprising second control information associated with a second service; and receiving, from the base station and on the basis of the second control information, a second data channel utilized for transmitting the second service, wherein the first and second services are services of mutually different types, and the first control channel is received by means of the full system bandwidth configured on the terminal, and the second control channel and second data channel are received by means of a particular sub-b

Abstract: Disclosed herein is a concatenated code encoding method for improving a turbo code. The concatenated code encoding method of the present disclosure includes encoding an input signal based on a repetition-accumulation (RA) code as an outer code, adding a tail bit to the encoded input signal, and encoding the encoded input signal based on the a turbo code. The concatenated code encoding method may further include interleaving the encoded input signal after application of the outer code.

Abstract: A method for selecting, by a base station, HD mode or FD mode in a wireless communication system supporting an FDR scheme may comprise: a step of receiving, from a second terminal which receives interference from a first terminal, a value related to the signal to noise ratio (SNR) of the second terminal and a value related to the signal-to-interference-plus-noise ratio (SINR) of the second terminal; a step of measuring the SNR value and the SINR value of the base station; a step of calculating the channel capacity ratio between the HD mode and the FD mode by using the received value related to the SNR of the second terminal, the received value related to the SINR of the second terminal, the measured SNR value of the base station, and the measured SINR value of the base station; and a step of selecting either mode on the basis of the calculated channel capacity ratio between the HD mode and the FD mode.