Abstract: A method performed by a user equipment (UE) in a wireless communication system, includes receiving a sounding reference signal (SRS) configuration via a radio resource control (RRC) signaling, the SRS configuration indicating a subframe configured for SRS transmission, wherein the SRS configuration includes an indicator indicating whether an aperiodic SRS transmission or a periodic SRS transmission is performed in the subframe configured for SRS transmission; based on the indicator indicating that the aperiodic SRS transmission is performed, receiving request information for requesting a transmission of an SRS and aperiodically transmitting the SRS in the configured subframe; and based on the indicator indicating that the periodic SRS transmission is performed, periodically transmitting the SRS in the configured subframe.

Abstract: A method for monitoring a control channel in a wireless communication system is discussed.

Abstract: An apparatus and method for transmitting channel state information in a wireless communication system are disclosed. The UE apparatus for transmitting channel state information includes a channel state measurement module for measuring a channel state based on a level of interference received from a neighbor cell, a channel state information generation module for generating channel state information for a plurality of resource regions or for periodic and aperiodic channel state information reporting modes using the measured channel state and offsets received from a serving BS, the offsets being set for the plurality of resource regions or the periodic and aperiodic channel state information reporting modes, and a transmission module for transmitting the generated channel state information to the serving BS.

Abstract: Provided are a method and an apparatus for a user equipment, which is allocated a plurality of serving cells, receiving acknowledgement/negative acknowledgement (ACK/NACK) in a wireless communication system. The method comprises: transmitting uplink data through a physical uplink shared channel (PUSCH); and receiving ACK/NACK with respect to the uplink through a physical hybrid-ARQ indicator channel (PHICH), wherein a serving cell that receives the ACK/NACK is selected from one or more serving cells, which the user equipment monitors to detect an uplink grant that schedules the PUSCH.

Abstract: A method performed by a user equipment (UE) in a wireless communication system, includes receiving a sounding reference signal (SRS) configuration via a radio resource control (RRC) signaling, the SRS configuration indicating a subframe configured for SRS transmission, wherein the SRS configuration includes an indicator indicating whether an aperiodic SRS transmission or a periodic SRS transmission is performed in the subframe configured for SRS transmission; based on the indicator indicating that the aperiodic SRS transmission is performed, receiving request information for requesting a transmission of an SRS and aperiodically transmitting the SRS in the configured subframe; and based on the indicator indicating that the periodic SRS transmission is performed, periodically transmitting the SRS in the configured subframe.

Abstract: A method performed by a user equipment (UE) in a wireless communication system, includes receiving a sounding reference signal (SRS) configuration via a radio resource control (RRC) signaling, the SRS configuration indicating a subframe configured for SRS transmission; and transmitting an SRS based on the SRS configuration, wherein the SRS configuration includes an indicator indicating whether an aperiodic SRS transmission or a periodic SRS transmission is performed in the subframe configured for SRS transmission, wherein, if the indicator indicates that the aperiodic SRS transmission is performed, the SRS is aperiodically transmitted in the configured subframe in response to reception of request information for requesting a transmission of the SRS, and wherein, if the indicator indicates that the periodic SRS transmission is performed, the SRS is periodically transmitted in the configured subframe.

Abstract: A method for transmitting data, which is performed by a user equipment (UE), includes receiving, through a first carrier, an uplink (UL) grant for a second carrier, and transmitting UL data through the second carrier according to the UL grant, wherein a UL-DL configuration of the first carrier and a UL-DL configuration of the second carrier are different from each other, and wherein the UL grant includes a time domain resource assignment indicating a starting time for transmitting the UL data.

Abstract: An apparatus and method for transmitting channel state information in a wireless communication system are disclosed. The UE apparatus for transmitting channel state information includes a channel state measurement module for measuring a channel state based on a level of interference received from a neighbor cell, a channel state information generation module for generating channel state information for a plurality of resource regions or for periodic and aperiodic channel state information reporting modes using the measured channel state and offsets received from a serving BS, the offsets being set for the plurality of resource regions or the periodic and aperiodic channel state information reporting modes, and a transmission module for transmitting the generated channel state information to the serving BS.

Abstract: A method for monitoring a control channel in a wireless communication system is discussed.

Abstract: The present invention relates to a method for configuring a starting position of a control channel in a wireless communication system, and a terminal using the same. The method includes receiving duration information about a physical downlink control channel from the first orthogonal frequency division multiplexing (OFDM) symbol of a downlink subframe; and configuring a first OFDM symbol after OFDM symbols indicated by the duration information, as a starting point of an enhanced-physical downlink control channel. The downlink subframe includes a plurality of subcarriers in a frequency domain and 12 or 14 OFDM symbols in a time domain. The PDCCH includes the first N (N is a natural number of from 1 to 4) number of OFDM symbols of the downlink subframe. The duration information indicates the N number of OFDM symbols. The E-PDCCH comprises the starting point to the last OFDM symbol of the downlink subframe.

Abstract: A method is provided for monitoring a control channel in a wireless communication system. A wireless device receives information from a base station for a search space in which a downlink control channel is monitored. The received information further includes first information indicating either a localized transmission or distributed transmission. The wireless device monitors the downlink control channel in the search space of a subframe, in at least one enhanced control channel element (ECCE) including a plurality of enhanced resource element groups (EREGs). If the first information indicates the localized transmission, the plurality of EREGs in each of the at least one ECCE are mapped to one of a plurality of physical resource block (PRB) pairs. If the localized transmission is used, the plurality of EREGs are associated with a single antenna port selected based on an index of the at least one ECCE and the wireless device's specific information.

Abstract: A method performed by a user equipment (UE) in a wireless communication system, includes receiving a sounding reference signal (SRS) configuration via a radio resource control (RRC) signaling, the SRS configuration indicating a subframe configured for SRS transmission; and transmitting an SRS based on the SRS configuration, wherein the SRS configuration includes an indicator indicating whether an aperiodic SRS transmission or a periodic SRS transmission is performed in the subframe configured for SRS transmission, wherein, if the indicator indicates that the aperiodic SRS transmission is performed, the SRS is aperiodically transmitted in the configured subframe in response to reception of request information for requesting a transmission of the SRS, and wherein, if the indicator indicates that the periodic SRS transmission is performed, the SRS is periodically transmitted in the configured subframe.

Abstract: An apparatus and method for transmitting channel state information in a wireless communication system are disclosed. The UE apparatus for transmitting channel state information includes a channel state measurement module for measuring a channel state based on a level of interference received from a neighbor cell, a channel state information generation module for generating channel state information for a plurality of resource regions or for periodic and aperiodic channel state information reporting modes using the measured channel state and offsets received from a serving BS, the offsets being set for the plurality of resource regions or the periodic and aperiodic channel state information reporting modes, and a transmission module for transmitting the generated channel state information to the serving BS.

Abstract: Provided are a method and an apparatus for a user equipment, which is allocated a plurality of serving cells, receiving acknowledgement/negative acknowledgement (ACK/NACK) in a wireless communication system. The method comprises: transmitting uplink data through a physical uplink shared channel (PUSCH); and receiving ACK/NACK with respect to the uplink through a physical hybrid-ARQ indicator channel (PHICH), wherein a serving cell that receives the ACK/NACK is selected from one or more serving cells, which the user equipment monitors to detect an uplink grant that schedules the PUSCH.

Abstract: The present disclosure relates to a method in which a base station transmits signals to a relay node in a multiuser multi-antenna (MIMO) wireless communication system. More particularly, the method includes: allocating one or more antenna ports to one or more relay nodes, respectively; mapping each of a plurality of downlink grant signals for the one or more relay nodes to a preset resource domain from among resource domains corresponding to one of the allocated antenna ports; mapping uplink grant signals or data signals for the one or more relay nodes to the resource domains corresponding to the allocated antenna ports; and transmitting the mapped signals to the one or more relay nodes.

Abstract: A method of transmitting a sounding reference signal (SRS) in a wireless communication system is discussed. The method according to one embodiment includes receiving a first UE-specific configuration indicating possible subframes for aperiodic SRS transmission via a radio resource control (RRC) signaling, wherein the possible subframes are periodically configured; receiving a physical downlink control channel (PDCCH) signal including request information of requesting aperiodic SRS transmission; and transmitting at least one SRS one time in response to the request information within the possible subframes.

Abstract: Provided are a method and an apparatus for a user equipment, which is allocated a plurality of serving cells, receiving acknowledgement/negative acknowledgement (ACK/NACK) in a wireless communication system. The method comprises: transmitting uplink data through a physical uplink shared channel (PUSCH); and receiving ACK/NACK with respect to the uplink through a physical hybrid-ARQ indicator channel (PHICH), wherein a serving cell that receives the ACK/NACK is selected from one or more serving cells, which the user equipment monitors to detect an uplink grant that schedules the PUSCH.

Abstract: A method and wireless station for receiving signals. The wireless station receives, from a base station, a control signal on a first subframe indicated as a downlink (DL) subframe by a time division duplex (TDD) uplink-downlink (UL-DL) subframe configuration. The control signal includes first information indicating that at least one UL subframe indicated by the TDD UL-DL subframe configuration is reconfigured as a TDD DL subframe. The wireless station receives, from the base station, DL data on a second subframe which was indicated as a TDD UL subframe by the TDD UL-DL subframe configuration but is currently reconfigured as a TDD DL subframe by the control signal. The wireless station transmits, to the base station, UL data on a TDD UL subframe except for being reconfigured as the TDD DL subframe by the control signal.

Abstract: A method and apparatus of transmitting backhaul signals performed by a relay station in a wireless communication system is provided. A relay station performs scheduling with a base station in order to transmit the backhaul signals, and transmitting the backhaul signals to the base station using both resources for downlink transmission and resources for uplink transmission based on the scheduling.

Abstract: The present invention provides a method for avoiding interference resulting from data transmission between an adjacent second base station and a second relay station placed within the coverage of the adjacent second base station.