Abstract: The present application discloses a method of transmitting, by a relay terminal of a second cell, downlink data for a receiving cell of a first cell in a wireless communication system. Specifically, the method comprises the steps of: receiving downlink data for the receiving terminal of the first cell from the second cell; transmitting control information for the downlink data to the receiving terminal; and transmitting the downlink data to the receiving terminal on the basis of the control information, wherein the downlink data is delivered from the first cell to the second cell via a backhaul link. In particular, the control information is characterized by comprising: data grant which indicates a plurality of resource areas for communication between the relay terminal and the receiving terminal; and a request message for channel state information between the relay terminal and the receiving terminal.

Abstract: Provided are a method by which a terminal transmits a vehicle-to-everything (V2X) signal in a wireless communication system, and a terminal using the method. The method comprises: reserving a plurality of V2X transmission resources on the basis of one scheduling assignment; reselecting a V2X transmission resource if a resource collision occurs for a certain time or more among the plurality of reserved V2X transmission resources; and transmitting a V2X signal by using the reselected V2X transmission resource.

Abstract: A method for performing a sidelink transmission in a wireless communication system and a device are disclosed in the present specification. In detail, in the present specification, a method for performing a sidelink transmission in a wireless communication system, the method performed by a user equipment (UE) includes receiving, from a base station, a sidelink grant to be used for scheduling of the sidelink transmission, wherein the sidelink grant includes control information indicating an offset of a specific subframe associated with the sidelink grant; determining the specific subframe in consideration of a value indicated by the control information; and performing the sidelink transmission in the specific subframe.

Abstract: The present invention relates to a resource allocation method of a vehicle-to-everything (V2X) transmission terminal in a wireless communication system and an apparatus therefor. More specifically, the method comprises the steps of: transmitting, to a V2X receiving terminal, a first V2X signal for a V2X service; receiving, from the V2X receiving terminal, an acknowledgment/negative-acknowledgment (ACK/NACK) for a V2X signal; and, if the NACK is received from the V2X receiving terminal, allocating, for a second V2X signal, a second time-frequency resource reserved in association with a first time-frequency resource for the first V2X signal.

Abstract: The present specification discloses a method for allocating a resource in a wireless communication system, comprising: a step in which a base station allocates, to a terminal, an uplink resource area for transmission of an uplink control information (UCI) of the terminal, wherein the uplink control information (UCI) is information related to a plurality of downlink cells; and a step in which the base station receives, from the terminal, the uplink control information (UCI) via the allocated uplink resource area over at least one uplink cell.

Abstract: A method for multiuser superposition transmission (MUST) in a wireless communication system, and a device therefor are disclosed. Particularly, a method by which a first base station (eNodeB (eNB)) performs MUST involving joint transmission in a wireless communication system can comprise the steps of: receiving, from a MUST-paired near user equipment (UE), first channel state information (CSI) for the first eNB participating in the joint transmission; setting a parameter required to perform the MUST involving the joint transmission for the MUST-paired UE, on the basis of the first CSI and the second CSI for a second eNB participating in the joint transmission; and transmitting the parameter to the MUST-paired UE and the second eNB.

Abstract: The present invention discloses a method for performing sidelink communication in a wireless communication system and a device therefor. Specifically, the method, performed by a first terminal, includes: a process for receiving, from a base station, resource pool allocation information which indicates at least one resource pool from among a plurality of preset resource pools; a process for identifying, in the at least one resource pool, a specific sidelink resource for a second terminal; and a process for transmitting, to the second terminal, a signal for allocating the identified specific sidelink resource, wherein the specific sidelink resource can be allocated for a signal for performing sidelink measurement between the first terminal and the second terminal.

Abstract: Disclosed are a method for allocating resources in a wireless communication system and an apparatus therefor. In particular, a method for allocating radio resources to a UE in a wireless communication system, comprising: a step of receiving, from a first base station, first semi-persistent scheduling (SPS) configuration information including semi-persistent resource allocation information of a first cluster; a step of being allocated a first SPS resource on the basis of the first SPS configuration information by receiving an SPS assignment from the first base station; and a step of, when the UE performs handover to a second cluster belonging to the same cluster group as the first cluster, being allocated a second SPS resource on the basis of the first SPS configuration information by receiving an SPS assignment from a second base station.

Abstract: The present invention relates to a method for a terminal to receive an enhanced physical downlink control channel (EPDCCH) from a based station in a wireless communication system. More particularly, the method includes the steps of defining a first number of enhanced resource element groups (EREGs) for each resource block for the EPDCCH, and monitoring EPDCCH candidates consisting of one or more enhanced control channel elements (ECCEs) in resource blocks and receiving the EPDCCH, wherein each of the one or more ECCEs consists of a second number of EREGs, and indexes of the second number of EREGs are determined to be intervals of the number of ECCEs for each resource block.

Abstract: The present invention relates to a method and a device for transmitting data by a first device in a wireless communication system that supports direct device-to-device communication, wherein one or more messages are received from multiple devices, at least one message among the one or more messages is transmitted to a second device on the basis of priority, and the priority is determined in such an order that a message having the lowest first received signal strength has the highest priority, the first received signal strength indicating the received signal strength of the one or more messages.

Abstract: The present invention relates to a method and apparatus for transmitting or receiving data with a base station by a device in a wireless communication system supporting a vehicle to everything (V2X) service. The present invention provides a method and apparatus for establishing a V2X link for transmitting or receiving a message with the base station, entering into an idle state, and transmitting, on the basis of a specific condition in the idle state, a message through a first resource allocated by the base station or a second resource for contention-based transmission to the base station.

Abstract: Disclosed are a method for allocating resources in a wireless communication system and an apparatus therefor. In particular, a method for allocating radio resources to a UE in a wireless communication system, comprising: a step of receiving, from a first base station, first semi-persistent scheduling (SPS) configuration information including semi-persistent resource allocation information of a first cluster; a step of being allocated a first SPS resource on the basis of the first SPS configuration information by receiving an SPS assignment from the first base station; and a step of, when the UE performs handover to a second cluster belonging to the same cluster group as the first cluster, being allocated a second SPS resource on the basis of the first SPS configuration information by receiving an SPS assignment from a second base station.

Abstract: Disclosed are a method for transmitting and receiving data in a wireless communication system supporting vehicle-to-everything (V2X) communication, and an apparatus therefor. Specifically, a method for transmitting and receiving data by a first terminal in a wireless communication system supporting V2X comprises the steps of: receiving, from a base station, downlink control information (DCI) including resource allocation information related to the transmission of control information for a sidelink; transmitting, to a second terminal, the control information for the sidelink on the basis of the resource allocation information; and transmitting at least one type of data to the second terminal, wherein the control information for the sidelink can be transmitted in a second subframe positioned after a predetermined offset from a first subframe in which the downlink control information is received.

Abstract: A method for multiuser superposition transmission (MUST) in a wireless communication system, and a device therefor are disclosed. Particularly, a method by which a first base station (eNodeB (eNB)) performs MUST involving joint transmission in a wireless communication system can comprise the steps of: receiving, from a MUST-paired near user equipment (UE), first channel state information (CSI) for the first eNB participating in the joint transmission; setting a parameter required to perform the MUST involving the joint transmission for the MUST-paired UE, on the basis of the first CSI and the second CSI for a second eNB participating in the joint transmission; and transmitting the parameter to the MUST-paired UE and the second eNB.

Abstract: Provided are an operation method in accordance with uplink semi-persistent scheduling (SPS) of a terminal in a wireless communication system and a terminal using the method. The method is characterized by: receiving, from a base station, downlink control information (DCI) for indicating activation or release of uplink SPS; and decoding the DCI on the basis of a first radio network temporary identifier (RNTI) or a second RNTI. If the DCI is a first DCI for SPS for transmitting a signal to the base station, the DCI is decoded on the basis of the first RNTI, and, if the DCI is a second DCI for SPS for transmitting a vehicle-to-everything (V2X) signal, the DCI is decoded on the basis of the second RNTI. And the first RNTI and second RNTI are RNTIs that are different from each other.

Abstract: According to an embodiment of the present invention, a discovery signal transmission method, by a device to device (D2D) terminal in a wireless communication system, comprises the steps of: determining a subframe pool in a discovery period; and transmitting a discovery signal in a subframe comprised in the subframe pool; wherein a frequency resource index and a time resource index, on which a discovery signal is transmitted in another discovery period which follows the discovery period, are determined by means of next_nf=(f_shift+floor((nf+Nf*nt)/Nt)) mod Nf and next_nt=(t_shift+nf+Nf*nt) mod Nt, respectively, wherein Nf is the number of discovery resources per subframe, Nt is the number of subframes per discovery period, f_shift is a frequency shift, t_shift is a subframe shift, nf is a frequency resource index on which the discovery signal is transmitted, nt is a time resource index on which the discovery signal is transmitted, and the f_shift and the t_shift are determined on the basis of the value that is

Abstract: In one embodiment of the present invention, disclosed is a sidelink signal transmission/reception method by which user equipment (UE) transmits/receives a sidelink signal in a wireless communication system, comprising the steps of: allowing the UE to receive, in subframe n, a DCI including a timer resource pattern for transmission (T-RPT) from a base station; allowing the UE to transmit a physical sidelink control channel (PSCCH) in a sidelink subframe after n+4; allowing the UE to apply the T-RPT to subframes after a PSCCH-physical sidelink shared channel (PSCCH-PSSCH) offset from the subframe having transmitted the PSCCH; and allowing the UE to transmit the PSSCH in the subframes indicated in the T-RPT.

Abstract: According to an embodiment of the present invention, a discovery signal transmission method, by a device to device (D2D) terminal in a wireless communication system, comprises the steps of: determining time-frequency resources for transmitting a discovery signal in a discovery period; and transmitting a discover signal on the time-frequency resources, wherein the discovery signal, if repeated b number of times in the discovery period, is repeated in consecutive time resources, and the frequency resources in each consecutive time resource are hopped as much as floor(Nf/b), wherein Nf is the number of discovery resources per subframe.

Abstract: Disclosed is a method for retransmitting scheduling assignment (SA) information between half-duplex user equipment in a wireless communication system. The method for retransmitting SA information may comprise the steps of: receiving, through a first resource area, a D2D signal including first SA information transmitted by a second user equipment, and second SA information transmitted by a third user equipment; if the target user equipment of the second SA information is the second user equipment, determining whether to retransmit the second SA information for the second user equipment; and if it is determined to retransmit the second information, transmitting the second information through a second resource area.

Abstract: The present disclosure proposes a method for transmitting and receiving data through sidelink in a wireless communication system supporting Vehicle-to-Everything (V2X) communication. Particularly, the method performed by a first User Equipment includes receiving, from a base station, Downlink Control Information (DCI) including information related to a transmission of first control information; transmitting, to the second User Equipment, the first control information based on the received DCI; and transmitting, to the second User Equipment, one or more data through the sidelink.