Abstract:
The present invention provides a method and a device for controlling uplink transmission on a first cell set in a licensed band and a second cell set in an unlicensed band. In one embodiment of the present invention, when the sum of transmission power required for the first cell and transmission power required for the second cell exceeds maximum power set in user equipment, the transmission power is preferentially allocated to the first cell over the second cell, and the uplink transmission is performed on the first cell within the residual power or the uplink transmission is omitted or dropped.
Abstract:
The present invention relates to a method for transmitting an hybrid automatic repeat request acknowledgement/negative-acknowledgement (HARQ-ACK/NACK) on the basis of a wide area network (WAN) of a device-to-device (D2D) terminal in a time division duplex (TDD)-based wireless communication system. Specifically, the method comprises the steps of: receiving a downlink HARQ reference configuration for WAN communication; and transmitting a HARQ-ACK/NACK from a downlink HARQ reference configuration-based first uplink subframe, wherein the first uplink subframe is an uplink subframe configured so as to communicate only via WAN.
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 access system supporting an unlicensed band, and provides a method for configuring a transmission opportunity (TxOP) section, and devices for supporting the same. The method for configuring a transmission opportunity (TxOP) section in a wireless access system supporting carrier aggregation (CA) with an unlicensed band, in one embodiment of the present invention, comprises the steps of: receiving, by a terminal, TxOP start information for indicating the start of the TxOP section; receiving orthogonal frequency division multiplexing (OFDM) symbol position information for indicating an OFDM symbol starting data transmission and reception in the TxOP section; and transmitting and receiving the data in a subframe (SF) of an S cell indicated by the TxOP start information on the basis of the OFDM symbol position information.
Abstract:
A method is provided for controlling uplink transmission power by a user equipment in a wireless communication system. An uplink signal is transmitted according to a predetermined uplink-downlink configuration to a serving cell. First transmission power control information is received on a first uplink subframe set and second transmission power control information is received on a second uplink subframe set from the serving cell. An uplink data channel is transmitted in a specific subframe contained in the second uplink subframe set according to the second transmission power control information. The uplink data channel is a physical uplink shared channel (PUSCH). The second uplink subframe set comprises at least one or more uplink subframes designated by higher layer signaling among a plurality of uplink subframes according to the predetermined uplink-downlink configuration.
Abstract:
The present invention relates to a wireless communication system. Specifically, the present invention provides a method for controlling signal transmission and reception by a terminal in a situation in which simultaneous transmission and reception is restricted, and an apparatus therefor, the method comprising the steps of: configuring a PCell and an SCell; and restricting signal transmission and reception on the SCell in an subframe when the PCell and the SCell have different transmission directions in the subframe, wherein the transmission direction of the SCell is defined according to first UL-DL information in an SIB when the SCell is not an eIMTA cell, and the transmission direction of the SCell is defined according to second UL-DL configuration information in a PDCCH when the SCell is the eIMTA cell.
Abstract:
The present invention relates to a method and apparatus for controlling a generation of synchronization signal in a wireless communication system that supports a device to device communication. The method includes searching a first synchronization signal for the D2D communication; comparing a reception signal strength of the searched first synchronization signal with a threshold value; and determining whether to transmit a second synchronization signal of the first UE according to a specific condition when the reception signal strength is smaller than the threshold value.
Abstract:
There is provided a transmitting/receiving method performed by a user equipment (UE) including a dedicated radio frequency (RF) chain for a proximity service (ProSe). The method may comprise: receiving configuration information for a discovery resource pool, the discovery resource pool including a bitmap representing a subframe used for a discovery signal and information representing the number of times when the bitmap is repeated; turning on the dedicated RF chain based on a subframe corresponding to a first bit 1 in a bit string enumerated by the bitmap and the number of repetition times; turning on the dedicated RF chain and thereafter, transmitting/receiving a signal to/from an adjacent UE; and turning off the dedicated RF chain based on a subframe corresponding to a last bit 1 in the bit string.
Abstract:
The present invention relates to a method and an apparatus for transmitting and receiving a signal by a terminal in a wireless communication system supporting reconfiguration of wireless resources. Specifically, the method comprises a step of monitoring wireless resource reconfiguration control information on a number of sub-frames within a set monitoring cycle in order to reconfigure wireless resources, wherein a first uplink-downlink setting in accordance with wireless resource reconfiguration control information is valid only if equally detected on a number of sub-frames, and wherein a number of sub-frames are sub-frames set to monitor wireless resource reconfiguration control information of a terminal.