Abstract:
Provided are a method for communicating in a wireless communication system and a device using the same. A wireless device receives a switching command instructing the switching between a clear channel assessment (CCA) operation and a non-CCA operation in an unlicensed band. According to the switching command, the wireless device performs the CCA operation or the non-CCA operation in the unlicensed band.
Abstract:
A disclosure of the present specification provides a method for executing power control by a user equipment (UE). The method may include the steps of: determining a first amount of power for transmitting a first uplink control information (UCI) by a user equipment (UE) set to have a dual connectivity with a first cell group and a second cell group; and determining a second amount of power for transmitting a second UCI. Herein, when the first UCI includes HARQ-ACK but the second UCI does not include HARQ-ACK, the determination of the first amount of power may have a priority over the determination of the second amount of power.
Abstract:
A method and apparatus for communicating with a user equipment (UE) in a wireless communication system is provided. By using concept of dual connectivity, a network may configure a plurality of cells as a master evolved NodeB (MeNB) and each cell among the plurality of cells as a secondary eNB (SeNB), and communicate with the UE using the configured plurality of cells. Alternatively, by using concept of coordinated multi-points (CoMP) transmission, the network may configure a plurality of transmission points (TPs) for a virtual cell, and communicate with the UE using the configured plurality of TPs.
Abstract:
A communication method supporting a plurality of serving cells in a wireless communication system is provided. A terminal receives a capability enquiry from a network, and accordingly transmits capability information to the network. The capability information comprises an upper band combination and a simultaneous indicator indicating whether the upper band combination supports simultaneous reception (RX)-transmission (TX).
Abstract:
Provided are a method for performing a hybrid automatic repeat request (HARQ) in a wireless communication system, and a wireless device using the same. The wireless device receives at least one downlink (DL) transmission block from at least one DL sub-frame in a frequency division duplex (FDD) cell and transmits ACK/NACK corresponding to the at least one DL transmission block from an uplink (UL) HARQ sub-frame in a time division duplex (TDD) cell. The UL HARQ sub-frame belongs to a subset of a set of UL sub-frames determined according to the UL-DL setting of the TDD cell.
Abstract translation:提供了一种用于在无线通信系统中执行混合自动重传请求(HARQ)的方法以及使用其的无线装置。 无线设备从频分双工(FDD)小区中的至少一个DL子帧接收至少一个下行链路(DL)传输块,并从上行链路(UL)发送与至少一个DL传输块相对应的ACK / NACK, HARQ子帧在时分双工(TDD)小区中。 UL HARQ子帧属于根据TDD小区的UL-DL设置确定的一组UL子帧的子集。
Abstract:
A method for transmitting a channel state report considering repetition for coverage enhancement in a wireless communication system, the method being performed by a terminal includes receiving information on a reference resource period, determining a plurality of valid downlink subframes in the reference resource period using the information, and calculating channel state information in the plurality of valid downlink subframes. The number of valid downlink subframes is equal to the number of the repetition.
Abstract:
The present invention proposes a power headroom reporting method and apparatus of a terminal in a wireless communication system supporting a change in use of wireless resources. More particularly, the method comprises the steps of: determining whether power headroom reporting is triggered; and transmitting power headroom reporting (PHR) information for first upper link wireless resource and second upper link wireless resource to a base station, wherein the first upper link wireless resource is configured to allow the use of the wireless resource to be dynamically changed and the second upper link wireless resource is configured to prevent the use of the wireless resources from being dynamically changed.
Abstract:
A method for and apparatus for performing interference coordination in a wireless communication system is provided. A wireless device may transmit measurement results on neighboring cells; receive information of grouping of the neighboring cells based on the measurement results; and receive a signal to be applied with a different sub-band, a subframe shift, or a Orthogonal frequency division multiplexing (OFDM) symbol shift according to the information of grouping from each cell of the neighboring cells.
Abstract:
According to one embodiment of the present invention, provided is a method by which a terminal detects a small cell. The small cell detection method can comprise the steps of: receiving, from a serving cell, information on discovery signals of one or a plurality neighboring small cells; and detecting a discovery signal from a small cell in an off state from the one or plurality of neighboring small cells on the basis of the information on the discovery signals. The information on the discovery signals can include information on whether the small cells independently set the discovery signals or identically set the discovery signals by cluster unit.
Abstract:
Disclosed is a method of performing a measurement in UE. A method for performing discovery signal measurements, the method performed by a user equipment (UE) and includes: receiving measurement configuration information including a sub-frame offset between a secondary synchronization signal (SSS) and a channel-state information reference signal (CSI-RS) in a discovery signal; setting configurations based on the measurement configuration information; and performing the discovery signal measurement based on the CSI-RS.