Abstract:
According to an embodiment of the present invention, a method for transmitting Device-to-Device (D2D) data by a User Equipment (UE) in a wireless communication system, the method comprising: determining a bitmap to be applied to a subframe pool for data transmission from a subframe indicator bitmap; determining a set of suframes to transmit D2D data by using the bitmap to the subframe pool for data transmission; and transmitting D2D data in a subframe included in the determined subframe set, wherein a set of values available as k being the number of 1s in the subframe indicator bitmap are changed according to a change in a transmission mode under unchanged UL/DL configuration.
Abstract:
The present invention provides a UE for performing measurement for positioning, a UE for transmitting a signal for positioning, and a positioning server and a base station for supporting positioning. The measuring UE receives configuration information relating to an uplink reference signal for positioning, receives the uplink reference signal on the basis of the configuration information and transmits information relating to a metric value measured on the basis of the uplink reference signal and information relating to a reception-transmission time difference of the measurement UE.
Abstract:
The present invention relates to a method for transmitting control information for device-to-device (D2D) communication of a D2D transmission terminal in a wireless communication system, comprising the steps of: receiving a resource pool configuration for D2D communication; and mapping control information for a D2D reception terminal onto a resource pool related to a scheduling assignment, wherein the control information includes information for a D2D signal transmission of the D2D reception terminal to the D2D transmission terminal, and is unicast to the D2D reception terminal.
Abstract:
The present invention relates to a method of transmitting uplink control information (UCI), which is transmitted by a user equipment in a wireless communication system. In particular, the method includes the steps of receiving first offset information associated with uplink control information (UCI) transmission in uplink subframes according to uplink-downlink configuration of a serving cell and receiving a power control parameter configuring a first uplink power control subframe set and a second uplink power control subframe set for the uplink subframes. In this case, the first uplink power control subframe set and the second uplink power control subframe set are configured to be independently applied by an offset for transmitting the uplink control information.
Abstract:
An embodiment of the present invention relates to a method by which a base station transmits a downlink signal in wireless communication system, the method including the steps of: transmitting a demodulation-reference signal (DMRS) approval; determining a long-term channel property from the DMRS of a first slot of an uplink sub-frame received by responding to the DMRS approval; receiving a first reference signal from a second slot of the sub-frame on the basis of the determined long-term channel property; determining a short-term channel property from the first reference signal; determining a pre-coding matrix from the long-term channel property and the short-term channel property; and transmitting a downlink signal through the determined pre-coding matrix.
Abstract:
An embodiment of the present invention relates to a method for a terminal determining a virtual multiple input and output (V-MIMO) cluster in a wireless communication system, the method comprising the steps of: selecting one or more entry candidate nodes included in a temporary cluster; determining the transmission efficiency for the entrance of the entry candidate node; and determining whether or not the entry candidate node enters a V-MIMO unit cluster, on the basis of the determined transmission efficiency, wherein whether or not to allow entrance is determined by comparing the determined transmission efficiency and the transmission efficiency of the candidate node prior to the entry.
Abstract:
A device to device (D2D) signal transmission method in which a D2D terminal transmits a D2D signal in a wireless communication system according to one embodiment of the present invention comprises the steps of: defining a time-frequency resource range in which the D2D signal is to be transmitted in a subframe; and transmitting the D2D signal through the defined time-frequency resource range, wherein the frequency resource range in which the D2D signal is to be transmitted in the subframe includes a first frequency resource range and a second frequency resource range, positions of the first frequency resource range and the second frequency resource range are defined by an independent parameter, and dimensions of the first frequency resource range and the second frequency resource range are defined by a common parameter.
Abstract:
One embodiment of the present invention relates to a method for a user equipment to transmit a device-to-device (D2D) signal in a time division duplex (TDD) wireless communication system, the method comprising the steps of: generating a primary synchronization signal and a secondary synchronization signal; and transmitting a subframe in which the primary synchronization signal and the secondary synchronization signal are mapped, wherein, if the cell selection reception level value and the cell selection quality value of the user equipment are all greater than 0, then the user equipment applies a fixed timing advance offset value (e.g. 624 Ts) that is greater than 0 when transmitting the subframe.
Abstract:
Provided is a method by a first transmitting node transmitting, in cooperation with two other transmitting nodes, radio signals using two radio resource units to three receiving nodes which the respective transmitting nodes serve, the method being performed by the first transmitting node and comprising: establishing, for a first receiving node, a CSI-RS resource and a CSI-IM resource; receiving, from the first receiving node, a first recommended PMI for the first transmitting node according to information measured in the CSI-RS resource and the CSI-IM resource, and receiving, from the remaining two transmitting node, a second recommended PMI for the first transmitting node, which has been reported from the remaining two receiving nodes; and muting at a first wireless resource unit among the two wireless resource units, and transmitting, at the second wireless resource unit, a wireless signal based on the first recommended PMI or the second recommended PMI.
Abstract:
According to one embodiment of the present invention, a method for transmitting a hybrid automatic repeat request (HARQ)-ACK in a wireless communication system, comprises the steps of: determining a physical uplink control channel (PUCCH) resource for a plurality of downlink subframes using a HARQ-ACK resource offset (ARO); and transmitting HARQ-ACK from one uplink subframe via the PUCCH resource.