Abstract:
An embodiment of the present invention relates to a method for transmitting and receiving a signal by an inband full duplex (IBFD) base station in a wireless communication system, comprising the steps of: receiving respective uplink signals that repeat K times in K time intervals; and transmitting K-N downlink signals in K-N time intervals while the uplink signals are received in the K time intervals, wherein the N time intervals in the K time intervals are used for handling interference received by one or more terminals receiving the downlink signals from one or more terminals transmitting the uplink signals.
Abstract:
One embodiment of the present invention discloses a method by which a terminal receives a device-to-device (D2D) signal in a wireless communication system, the D2D signal receiving method comprising the steps of: receiving a subframe; receiving a first reference signal in a preset symbol of the subframe; and receiving reference signal pattern information in a symbol neighboring the preset symbol on the basis of the received reference signal, wherein if the reference signal pattern information indicates the transmission of a second reference signal, the terminal performs a linear interpolation during a channel estimation for a D2D signal demodulation in the subframe.
Abstract:
The present invention relates to a wireless communication system. Disclosed is a method for transmitting a synchronization signal for direction communication between terminals. A method for transmitting a synchronization signal according to one embodiment of the present invention comprises the steps of: mapping a synchronization signal for direction communication between terminals to a sub-frame comprising a first slot and a second slot; and transmitting, to a counterpart terminal, the sub-frame to which the synchronization signal is mapped, wherein the synchronization signal is mapped to four orthogonal frequency division multiple access (OFDM) symbols of the sub-frame, and at least two OFDM symbols of the four OFDM symbols may be adjacent to each other.
Abstract:
An embodiment of the present invention provides a method for transmitting device-to-device (D2D) data by a terminal in a wireless communication system, the method for transmitting the D2D data comprising the steps of: determining a sub-frame indicating bitmap corresponding o information indicating a time resource pattern (TRP); determining a bitmap to be applied to a sub-frame pool for transmitting data from the sub-frame indication bitmap; determining a set of sub-frames required to transmit D2D data using the bitmap to the sub-frame pool for transmitting the data; and transmitting D2D data in a sub-frame included in the set of the sub-frames.
Abstract:
An embodiment of the present invention relates to a method for generating, by a terminal, a device-to-device (D2D) signal in a wireless communication system, the method comprising the steps of: mapping a sequence for an automatic gain control (AGC) preamble to a resource element; and performing an inverse fast Fourier transform (IFFT) on the mapped AGC preamble, wherein when mapped to the resource element, the sequence for the AGC preamble is repeated N times (N>=0) where N is proportional to a frequency bandwidth if the terminal is a terminal within a coverage.
Abstract:
Disclosed is a method for transmission of a device-to-device (D2D) signal by a terminal in a wireless communication system. The method for transmission of a D2D signal, according to an embodiment of the present invention, comprises the steps of: a first terminal generating a D2D synchronization signal; and transmitting a subframe comprising the D2D synchronization signal, wherein the D2D synchronization signal comprises a primary D2D synchronization signal and a secondary D2D synchronization signal, and wherein, if at least one of the primary D2D synchronization signal and the secondary D2D synchronization signal in the subframe comprises two or more sequences that are transmitted in the subframe at different times, the two or more sequences are different from one another.
Abstract:
Disclosed is a method for transmission and reception of a device-to-device (D2D) signal by a terminal in a wireless communication system. The method for transmission and reception of a D2D signal, according to an embodiment of the present invention, comprises the steps of: receiving a scheduling assignment comprising a resources pattern for transmission (RPT); and receiving a D2D signal in a subframe indicated in the RPT, wherein each bit of the RPT indicates whether or not the D2D signal is permitted to be transmitted in the subframe within a scheduling assignment period, and wherein, if the number of the subframes comprised in the scheduling assignment period is greater than the number of the bits of the RPT, at least one bit of the RPT indicates whether or not the D2D signal is permitted to be transmitted in two or more subframes.
Abstract:
Provided are a method and a device for allocating a resource for an uplink control channel in a wireless communication system. The method for allocating a resource for an uplink control channel in a wireless communication system comprises: receiving at least one downlink subframe; and allocating a physical uplink control channel (PUCCH) resource for transmitting an acknowledgement/not-acknowledgement (ACK/NACK) for the at least one downlink subframe, wherein the PUCCH resource is allocated on the basis of a control channel element of a control channel for scheduling each of the at least one downlink subframe, and if a particular subframe that satisfies a particular condition is included in the at least one downlink subframe, a control channel element included in the special subframe is excluded from the control channel element used to allocate the PUCCH resource.
Abstract:
According to one embodiment of the present invention, a method of selecting a synchronization source, which is selected by a D2D (device-to-device) UE in a wireless communication system includes the steps of receiving a plurality of synchronization signals, selecting a plurality of candidate synchronization signals from a plurality of the synchronization signals and determining a synchronization signal in a manner of applying a priority to a plurality of the candidate synchronization signals and selecting a UE, which has transmitted the determined synchronization signal, as a synchronization source. In this case, the application of the priority can be performed in a manner of sequentially applying a plurality of priorities related to a D2D signal according to a priority for the application of the priority.
Abstract:
One embodiment of the present invention relates to a method for mapping a discovery signal by a terminal in a wireless communication system, the method for mapping the discovery signal comprising the steps of: generating the discovery signal; mapping the discovery unit on at least a portion of a plurality of discovery signal resource blocks (RB), wherein when the number of terminals transreceiving the discovery signal including the terminal is less than or equal to a predetermined value, an absolute value of a frequency band of a discovery signal RB included in a positive frequency zone with respect to a direct current (DC) carrier, from among the plurality of discovery signal RBs, does not overlap with an absolute value of a frequency band corresponding to a discovery signal RB present in a negative frequency zone.