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:
A method for transmitting a Channel State Information-Reference Signal (CSI-RS) from a base station supporting multiple transmit antennas to a mobile station. The method according to one embodiment includes transmitting, at the base station, information of one or more CSI-RS configurations to the mobile station; and transmitting, at the base station, at least one downlink subframe mapped with the CSI-RSs to the mobile station. The one or more CSI-RS configurations include i) at least one CSI-RS configuration for which the mobile station assumes non-zero transmission power for the CSI-RS, ii) at least one CSI-RS configuration for which the mobile station assumes zero transmission power for the CSI-RS, or iii) at least one CSI-RS configuration for which the mobile station assumes non-zero transmission power for the CSI-RS and at least one CSI-RS configuration for which the mobile station assumes zero transmission power for the CSI-RS.
Abstract:
A method and user equipment for receiving channel status information-reference signals (CSI-RSs) from a base station (BS) in a wireless communication system, are discussed. The method includes receiving, through a higher layer, configuration about two or more CSI-RS; and receiving, from the BS, the CSI-RSs based on the configuration, wherein, when the configuration includes an indicator related to antenna ports of the two or more CSI-RS, the CSI-RSs are received on the assumption that the antenna ports for two or more CSI-RS resources are same.
Abstract:
The present invention relates to a wireless communication system, and more specifically, to a method and a device for communicating device-to-device. The method for a first device to transmit a signal to a second device according to one embodiment of the present invention enables the first device to request to a base station a resource allocation for transmitting the signal to the second device, receive from the base station scheduling information for transmitting the signal to the second device, and the signal can be transmitted from the first device to the second device on the basis of the scheduling information, wherein the scheduling information includes information on an uplink resource for transmitting the signal from the first device to the second device.
Abstract:
A method of performing downlink measurement at a user equipment in a wireless communication system is described. Information indicating one or more subframes on which downlink measurement is to be performed is received from a base station. The downlink measurement is performed in the one or more subframes configured by the information. The one or more subframes are configured based on a subset of subframes with reduced activity of a neighbor base station which performs inter-cell interference coordination with the base station.
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:
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.
Abstract:
A method is provided for computing a channel quality indicator (CQI) value by a user equipment in a wireless communication system. The method includes configuring, through a higher layer, channel measurement resources defined by channel status information-reference signal (CSI-RS) resource element configuration with non-zero transmission power and subframe configuration, configuring, through the higher layer, interference measurement resources defined by the CSI-RS resource element configuration with zero transmission power and the subframe configuration, and computing the CQI value based on a channel measurement and an interference measurement. The channel measurement is performed by using the channel measurement resources, and the interference measurement is performed by using the interference measurement resources. If two or more channel status information (CSI) subframe sets are configured, the interference measurement for one CSI subframe set of the two or more CSI subframe sets is performed by using the interference measurement resources.
Abstract:
The present invention provides a method for measuring a location. The method comprises: receiving, by a User Equipment (UE) and from a serving cell, information on a bandwidth allocated for a positioning reference signal (PRS); receiving, by the User Equipment (UE) and from at least one or more neighbor cells, information on a bandwidth allocated for a PRS; determining whether there is a difference between the bandwidths; and measuring, by the UE and based on a result of the determination a timing difference between PRSs transmitted from the serving cell and the at least one or more neighbor cells.