Abstract: A method of transmitting a power control factor by a device performing self-interference cancellation (SIC) in a wireless communication system using full-duplex radio (FDR) according to the present invention includes: transmitting, to a user equipment (UE), a first indicator indicating a power control for purpose of reducing an order to be considered as nonlinear components of a self-interference signal; and receiving, from the UE, a second indicator indicating whether the power control for the purpose of reducing the order to be considered as the nonlinear components of the self-interference signal is accepted or not in response to the first indicator.

Abstract: A method and apparatus for randomization of interference in a cellular Internet of things (IoT) system is disclosed. The method for randomization of interference in the cellular IoT system may comprise the steps of: allocating a radio resource for a physical broadcast channel (PBCH) by a base station; and transmitting downlink data to a plurality of terminals through the PBCH by the base station on the basis of a broadcast, wherein the PBCH may be transmitted on N (herein, N is natural number) slots, the radio resource may be determined on the basis of frequency hopping, and the frequency hopping may be performed in a plurality of frequency areas included in the entire whole frequency bandwidth.

Abstract: The present invention relates to a method for performing channel encoding by a transmitting end in a wireless communication system. Particularly, the method comprises the steps of: transmitting, to a receiving end, a configuration indicating a plurality of channel coding configurations; performing channel encoding using a first channel coding configuration among the plurality of channel coding configurations; and performing reconfiguration from the first channel coding configuration to a second channel coding configuration according to a change in system requirements, wherein the plurality of channel coding configurations comprise channel coding configurations, each comprising at least one channel code concatenated differently according to the system requirements.

Abstract: A method for performing self-interference cancellation by a device using an FDR mode comprises a step for performing nonlinear digital self-interference cancellation on the basis of a condition defined for the nonlinear digital self-interference cancellation, wherein the defined condition can comprise information about the order of a self-interference component to be considered for the nonlinear digital self-interference cancellation in correspondence with transmission power of the device.

Abstract: A method and apparatus for transmitting system information in a wireless communication system is provided. A base station (BS) configures a physical broadcast channel (PBCH) in a subband including a set of consecutive subcarriers in a frequency domain, and transmits master information via the PBCH.

Abstract: A method for transmitting reference signal (RS) allocation mode information by a device operating in a full duplex radio (FDR) mode comprises the steps of: determining to change an RS allocation mode from a first RS allocation mode to a second RS allocation mode for nonlinear component estimation of a residual self-interference signal after antenna and analog self-interference cancellation; and transmitting information about the changed second RS allocation mode to a counterpart node, wherein the first RS allocation mode and second RS allocation mode are distinguished from each other on the basis of whether or not RSs, used for nonlinear component estimation of the residual self-interference signal, are additionally transmitted.

Abstract: A method for performing self-interference cancellation by a communication device which uses an FDR mode can comprise the steps of: measuring the strength of a residual self-interference signal, after antenna and analog self-interference cancellation, for each subband with respect to a predetermined number of subbands configured in a communication device; determining the order of a nonlinear self-interference signal component, to be considered for channel estimation of a nonlinear self-interference signal, for each subband on the basis of the strength of the residual self-interference signal that has been measured for each subband; and performing channel estimation of the nonlinear self-interference signal on the basis of the order that has been determined for each subband.

Abstract: Disclosed is an asynchronous multiple access method and device for a low latency service. The asynchronous multiple access method for low latency service may include the steps of: grouping, by an eNB, each of a plurality of UEs into one UE group among a plurality of UE groups in consideration of each of a plurality of propagation delays of each of the plurality of UEs; receiving, by the eNB, each of a plurality of pieces of uplink data transmitted by each of the plurality of UE groups on each of a plurality of wireless resources allocated for each of the plurality of UE groups at an internal access timing; and transmitting, by the eNB to each of the plurality of UE groups, each of a plurality of ACKs/NACKs signals in response to each of a plurality of uplink frames, wherein the internal access timing can be periodically defined in a symbol unit for the synchronization of transmitting times of the plurality of pieces of uplink data.

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: The present document relates to a wireless frame structure for implementing a low-delay communication in a next generation wireless communication system, and a communication method and apparatus using same. To this end, a terminal receives downlink data from a base station through a data area of a wireless frame, and sends, to the base station, an acknowledgement signal with respect to the downlink data using an uplink control channel area of the wireless frame. Every sub-frame of the wireless frame includes a downlink control channel area and the uplink control channel area, wherein the downlink control channel area is located within a first certain number of symbol areas starting from the start point of the sub-frame, and the uplink control channel area is located within a second certain number of symbol areas starting from the end point of the sub-frame.

Abstract: A method for allocating, by a base station, resources in a wireless communication system supporting a full duplex radio (FDR) technology, according to the present invention, may comprise the steps of: receiving, from a first terminal, a buffer status report (BSR) including an indicator which indicates the urgency of uplink data transmission; and determining, on the basis of the indicator, whether to allocate an uplink sub-frame for the first terminal in a situation where a downlink sub-frame is allocated to a second terminal during a specific time interval.

Abstract: A method of transmitting uplink control information (UCI) by a user equipment in a wireless communication system, includes the steps of receiving downlink control information (DCI) indicating a transmission time of the UCI through a prescribed frequency band in a first subframe, receiving a downlink data based on the DCI, and transmitting UCI associated with the downlink data in a second subframe based on the indicated transmission time of the UCI. In this case, the prescribed frequency band on which the DCI is transmitted is configured by a plurality of DCCUs (downlink control channel units) for transmitting the DCI, and the UCI may be transmitted on an UCCU (uplink control channel unit) in the second subframe, a frequency band of the first UCCU being same as a frequency band corresponding to a DCCU of a lowest frequency among the plurality of DCCUs.

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 performing self-interference removal by a communication device using a full-duplex radio (FDR) mode, according to an embodiment of the present invention, comprises a step for branching a residual self-interference signal, after removal of an antenna self-interference signal, into a plurality of reception RF chains. And the present invention enables determining of whether or not digital self-interference removal is to be performed after combining the plurality of self-interference signals, which have been branched, on the basis of a predefined threshold and strength of each of the plurality of self-interference signals that have been branched.

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: A method for a base station processing in-band multiplexing using an FCP-OFDM scheme may comprise the steps of: transmitting, to a terminal, information on the length of zero padding (ZP) for a receiving side and the length of ZP for a transmitting side in a band for a first service among one or more services provided in one carrier; and on the basis of the information on the length of ZP for a receiving side and the length of ZP for a transmitting side, processing a signal of the first service in the transmitting end or receiving end of the base station.

Abstract: A method for a receiving side processing a signal in a wireless communication system according to the present invention may comprise the steps of: receiving, from a transmitting side, information for the length, in a band where the receiving side is allocated, of a band pass filter to be applied to a transmission signal of the transmitting side and the length of the greatest band pass filter applied to a time interval identical to the transmission signal; and on the basis of the information for the length of a band pass filter to be applied to a transmission signal of the transmitting side and the length of the greatest band pass filter applied to a time interval identical to the transmission signal, setting an N Fast Fourier Transform (FFT) window starting point for detecting the transmission signal.

Abstract: A method for a base station to allocate resources for supporting a plurality of wireless communication modes in a wireless system according to the present invention comprises the steps of: allocating, using frequency-division multiplexing, a first zone composed of orthogonal frequency division multiplexing (OFDM) symbols and a second zone composed of generalized frequency division multiplexing (GFDM) symbols on time and frequency domains; and allocating a predetermined number of guard subcarriers to the boundary between the first zone and the second zone, wherein the predetermined number is determined on the basis of the number of sub-symbols of the GFDM symbols of the second zone.

Abstract: A method for changing reference signal (RS) allocation by a device operating in an FDR scheme may comprise the steps of: determining whether to release an additionally allocated RS according to a transmission power variation of the device or to additionally allocate an RS for channel estimation of a non-linear component of a self-interference signal; and transmitting information on a resource of the RS to be released or information on a resource of the RS to be additionally allocated, according to the determination.

Abstract: An apparatus for removing self-interference in an environment supporting an FDR method according to the present invention may comprise: an analogue self-interference removal unit that is constructed to remove a first analogue 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 analogue 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 analogue self-interference removals were respectively successful on the basis of t