Abstract: A method for receiving Acknowledgement/Negative acknowledgement (ACK/NACK) information in a mobile communication system includes receiving a first signal including first spread ACK/NACK information and second spread ACK/NACK information from a first antenna set of a transmitting end in an orthogonal frequency division multiplexing (OFDM) symbol; receiving a second signal including third spread ACK/NACK information and fourth spread ACK/NACK information from a second antenna set of the transmitting end in an OFDM symbol; and de-spreading at least the first and third spread ACK/NACK information or the second and fourth spread ACK/NACK information for identifying the ACK/NACK information.

Abstract: A method of a first cell for supporting a downlink channel demodulation at a user equipment. The method according to one embodiment includes transmitting, by the first cell to the user equipment, information on a Cell-specific Reference Signal (CRS) of a second cell including at least one CRS antenna port count information of the second cell or Multicast/Broadcast over Single Frequency Network (MBSFN) subframe configuration information of the second cell; and transmitting, by the first cell to the user equipment, a downlink signal on the downlink channel. The information on the CRS of the second cell is used by the user equipment to demodulate the downlink channel.

Abstract: Disclosed is a microcapsule encoded depending on the kind of a target substance included therein. The encoded microcapsule has a hydrophilic liquid core including the target substance and a hydrophobic shell surrounding the liquid core. The encoded microcapsule includes graphical codes introduced on the surface of the shell.

Abstract: The present invention relates to a wireless communication system, and more particularly, to a method and device for measuring a downlink in a wireless communication system. According to the present invention, provided is a method for properly and accurately measuring a downlink when an inter-cell interference adjustment is applied.

Abstract: A method of sizing bundled resource blocks (RBs) having at least one user equipment (UE)-specific demodulation reference signal in an orthogonal frequency division multiplexing (OFDM) system is disclosed. According to one embodiment, the method includes: receiving configuration information related to at least one UE-specific demodulation reference signal; receiving a plurality of resource blocks (RBs) from a network, wherein the plurality of resource blocks comprises the at least one UE-specific demodulation reference signal, at least one cell-specific demodulation reference signal or data, wherein a number of the plurality of RBs is dependent on a size of a system bandwidth, the size of the system bandwidth corresponding to one of four size ranges; and processing at least one of the received plurality of RBs by bundling the plurality of RBs into RB bundles, wherein the size of each RB bundle is based on the one of the four size ranges.

Abstract: A method of sizing bundled resource blocks (RBs) having at least one user equipment (UE)-specific demodulation reference signal in an orthogonal frequency division multiplexing (OFDM) system is disclosed. According to one embodiment, the method includes: receiving configuration information related to at least one UE-specific demodulation reference signal; receiving a plurality of resource blocks (RBs) from a network, wherein the plurality of resource blocks comprises the at least one UE-specific demodulation reference signal, at least one cell-specific demodulation reference signal or data, wherein a number of the plurality of RBs is dependent on a size of a system bandwidth, the size of the system bandwidth corresponding to one of four size ranges; and processing at least one of the received plurality of RBs by bundling the plurality of RBs into RB bundles, wherein the size of each RB bundle is based on the one of the four size ranges.

Abstract: A method and a first base station are described for setting measurement resources. Information about setting of a blank subframe of a second base station among a plurality of subframes is received. Resources are set in which a terminal will perform measurement using the information about setting of the blank subframe of the second base station. The information about setting of the blank subframe of the second base station includes a bitmap indicating blank subframes and non-blank subframes of the second base station. In addition, the resources in which the terminal will perform measurement are determined among the blank subframes indicated by the bitmap.

Abstract: A method of sizing bundled resource blocks (RBs) having at least one user equipment (UE)-specific demodulation reference signal in an orthogonal frequency division multiplexing (OFDM) system is disclosed. According to one embodiment, the method includes: receiving configuration information related to at least one UE-specific demodulation reference signal; receiving a plurality of resource blocks (RBs) from a network, wherein the plurality of resource blocks comprises the at least one UE-specific demodulation reference signal, at least one cell-specific demodulation reference signal or data, wherein a number of the plurality of RBs is dependent on a size of a system bandwidth, the size of the system bandwidth corresponding to one of four size ranges; and processing at least one of the received plurality of RBs by bundling the plurality of RBs into RB bundles, wherein the size of each RB bundle is based on the one of the four size ranges.

Abstract: A method and apparatus for transmitting and receiving a Channel State Information-Reference Signal (CSI-RS) in a wireless communication system supporting multiple antennas are disclosed. The method includes transmitting, at a base station, information of one or more CSI-RS configurations to a mobile station, wherein the one or more CSI-RS configurations include one CSI-RS configuration for which the mobile station assumes non-zero transmission power for CSI-RS, transmitting, at the base station, information indicating a CSI-RS configuration for which the mobile station assumes zero transmission power for the CSI-RS among the one or more CSI-RS configurations to the mobile station, mapping, at the base station, CSI-RSs to resource elements of a downlink subframe based on the one or more CSI-RS configurations, and transmitting, at the base station, the downlink subframe mapped with the CSI-RSs to the mobile station.

Abstract: A method and apparatus for reducing inter-cell interference in a radio communication system are disclosed. A method for reducing inter-cell interference includes determining REs of a downlink subframe of a first cell overlapping with CRS transmission REs of a downlink subframe of a second cell, determining a portion of REs of the downlink subframe of the first cell overlapping with CRS transmission REs of the downlink subframe of the second cell as punctured REs, mapping one or more downlink channel to the downlink subframe of the first cell other than the punctured REs, and transmitting the one or more downlink channel mapped to the downlink subframe of the first cell to a UE.

Abstract: Embodiments include systems and methods for improving the beamforming efficiency of Multi-User Multiple Input Multiple Output (MU-MIMO) and/or Coordinate Beamforming (CB) in wireless multi-access networks. In one aspect, a receiver-aided approach for MU-MIMO and/or CB is provided. Unlike conventional MU-MIMO/CB operation which is transparent to the UE, the receiver-aided approach herein makes information about potential MU-MIMO and/or CB multi-user interference available to UEs being considered for MU-MIMO and/or CB transmission. As such, the UEs can provide Channel State Information (CSI) that is better tailored to actual data transmission conditions than in conventional operation, and the base station can make better decisions regarding MU-MIMO and/or CB operation, user selection, and transmission parameters (e.g., number of data streams, precoder matrix, etc.).

Abstract: Systems and methods for multi-subframe data transmission are provided. A multi-subframe scheduling (MSS) downlink subframe is transmitted from a base station to a user equipment (UE). The MSS downlink subframe includes a control signal that describes consecutive data transmissions in the MSS downlink subframe and in a plurality of subsequent downlink subframes. The plurality of subsequent downlink subframes include no control information, thereby allowing for control signaling overhead to be reduced.

Abstract: The present invention relates to a wireless communication system, and more particularly, to a method and device for transmitting/receiving a signal by using a codebook. According to an embodiment of the present invention, the method for a transmitter supporting Nt antennas to attain the technical objects thereof and transmit a signal to a receive includes selecting the precoding matrix indicated by the combination of a first precoding matrix indicator (PMI) and a second PMI, precoding the signal by using the selected precoding matrix, and transmitting the precoded signal through the Nt antennas. Here, the first PMI may indicate one matrix group among N matrix groups (N?1) including matrices representing channel directions related to the Nt antennas. Additionally, the precoding matrix may be selected by multiplying the one matrix group indicated by the first PMI by the matrix indicated by the second PMI.

Abstract: The present invention relates to a method and apparatus for receiving downlink signals in a wireless communication system. More specifically, the present invention relates to a method for receiving downlink signals in a wireless communication and an apparatus incorporating the same, wherein the method comprises the steps of: receiving a sub frame having two slots; blind decoding a plurality of R-PDCCH (Relay Physical Downlink Control Channel) candidates in order to receive control data from the search space of a first slot; and determining whether the R-PDCCH conveys control data for downlink transmission or uplink transmission when R-PDCCH was detected in the search space, wherein the control data for the downlink transmission and uplink transmission have an equal size of data.

Abstract: The present invention relates to a wireless communication system. A method for a terminal to transmit channel state information (CSI) comprises the steps of: determining a precoding matrix by selecting a first precoding matrix and a second precoding matrix; and transmitting the CSI including an index of the said first precoding matrix and an index of the said second precoding matrix. The said first precoding matrix relates to a method for transmitting CSI in which a revision factor according to a relationship between the said terminal and a transmission point is applied.

Abstract: The present invention relates to a method for transmitting a precoded signal, the method comprising: determining a precoding matrix on the basis of the first matrix, which is determined from a first codebook including precoding matrices indicated by a first precoding matrix index (PMI), and the second matrix, which is determined from a second codebook including precoding matrices indicated by a second PMI; and transmitting the precoded signal using the determined precoding matrix to the receiver, wherein each precoding matrix contained in the first codebook is comprised of a block diagonal matrix, and individual blocks of the block diagonal matrix are configured independently of each other, and each precoding matrix contained in the second codebook is comprised of an upper element and a lower element, where the lower element includes a phase rotation value.

Abstract: The present invention relates to a wireless communication system.

Abstract: A method and an apparatus of transmitting scheduling request (SR) in a wireless communication system are provided. The method includes configuring a physical uplink control channel (PUCCH) for a SR in a subframe, the subframe comprising a plurality of single carrier-frequency division multiple access (SC-FDMA) symbols, wherein one SC-FDMA symbol on the PUCCH is punctured and transmitting the SR on the PUCCH in the subframe.

Abstract: The present application discloses a method for reporting channel status information in a multi antenna wireless communication system. In more detail, the method includes: receiving a reference signal from a base station; calculating the optimum precoding matrix index (PMI), at which the intensity of a signal from the base station is maximized, on the basis of the reference signal: determining at least one interference PMI from the base station on the assumption that a plurality of interference PMIs corresponding to the optimum PIM are applied; and transmitting information on at least one determined interference PMI to the base station. Beams corresponding to the plurality of interference PMIs are orthogonal to the beams corresponding to the optimum PMI.

Abstract: The present invention provides for applying a cyclic redundancy check (CRC) to a data signal. The present invention includes attaching a first CRC to a first data signal block having a first length, segmenting the first data signal block attached with the first CRC into a plurality of second data signal blocks having a length shorter than the first length, respectively generating a second CRC for each second data signal block, and attaching the generated second CRC to the respective second data signal block. Moreover, the first CRC and second CRC may be generated from respectively different CRC generating polynomial equations.