Patent application number | Description | Published |
20140169297 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING MCS INDEX FOR 256QAM IN WIRELESS ACCESS SYSTEM - A method and apparatus for transmitting and receiving an MCS index for 256 QAM in a wireless access system are disclosed, which relate to methods for transmitting and receiving a Modulation and Coding Scheme (MCS) index supporting a 256 Quadrature Amplitude Modulation (QAM) scheme and apparatuses for supporting the same. The method for receiving a Modulation and Coding Scheme (MCS) index for 256 QAM (Quadrature Amplitude Modulation) in a wireless access system includes: receiving, by a user equipment (UE), a message including a 256 QAM indicator indicating use of a 256 QAM scheme; and receiving a physical downlink control channel (PDCCH) signal including the MCS index, wherein the UE obtains a modulation order and a Transport Block Size (TBS) index depending upon the MCS index for the 256 QAM scheme | 06-19-2014 |
20140169300 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING CHANNEL STATUS INFORMATION (CSI) FOR SUPPORTING 256QAM IN WIRELESS ACCESS SYSTEM - A method and apparatus for transmitting and receiving channel status information (CSI) for supporting 256QAM in a wireless access system are disclosed. A method for transmitting a Channel Quality Indication (CQI) index for 256QAM (Quadrature Amplitude Modulation) in a wireless access system includes: receiving, by a user equipment (UE), a message including a 256QAM indicator indicating use of a 256QAM scheme; performing channel measurement of a downlink channel through which downlink data is transmitted; and transmitting a CQI index in response to the channel measurement result to a base station (BS), wherein the UE simultaneously manages a first CQI feedback table for supporting a legacy modulation scheme and a second CQI feedback table for supporting the 256QAM scheme. | 06-19-2014 |
20140206407 | METHOD AND DEVICE FOR DISCOVERING NEIGHBORS FOR WIRELESS FIDELITY DIRECT (WFD) PEER TO PEER (P2P) COMMUNICATION - The present invention relates to a wireless communication system. In particular, the present invention relates to a method and device for performing the process of discovering neighbors for Wi-Fi P2P communication, the method including the steps of: checking at a first WFD P2P device whether there is WFD P2P group in which participation is possible; performing, at the first WFD P2P device, the operation for participating in the WFD P2P group in which participation is possible, if there is a WFD P2P group in which participation is possible, or performing, at the first WFD P2P device, the operation for creating a new WFD P2P group or entering a sleep mode, if there is no WFD P2P group in which participation is possible, wherein the operation for participating in the WFD P2P group in which participation is possible includes the steps of receiving information about a neighbor list on a second WFD P2P device (or devices) within the WFD P2P group from a specific WFD P2P device that manages the WFD P2P group, and periodically transferring neighbor advertisement information on the first WFD P2P device to the specific WFD P2P device, after receiving the neighbor list. | 07-24-2014 |
20140301237 | METHOD FOR ACQUIRING INFORMATION ON OCCUPIED CHANNEL OF DEVICE WHICH SUBSCRIBES TO INFORMATION SERVICE IN TELEVISION WHITE SPACE BAND - Provided is a method for acquiring information on an occupied channel of an apparatus (hereinafter, “information service apparatus”) which subscribes to an information service in order to allocate a channel to an apparatus (hereinafter, “management service apparatus”), which is performed by a management apparatus, and comprises: transmitting, to the information service apparatus, an occupied channel query request message for query of information about one or more channels (hereinafter, “occupied channels”) occupied by the information service apparatus; and receiving, from the information service apparatus, an occupied channel query response message including the information about the occupied channels, wherein the occupied channel query request message includes an ID of the information service apparatus and information about a measurement period of the occupied channels, and the information service apparatus and the management service apparatus may be TVWS devices. | 10-09-2014 |
20140301552 | METHOD FOR WIRELESS LOCAL AREA NETWORK (WLAN)-BASED PEER TO PEER (P2P) COMMUNICATION AND APPARATUS FOR SAME - Abstract: The present invention relates to a wireless communication system. More particularly, the present invention relates to a method for performing WLAN-based P2P communication at the state where a P2P apparatus is connected to a cellular network and to a first P2P apparatus for the method. The method comprises: a step of receiving one or more pieces of key information from a cellular base station, each piece of key information including a key value corresponding to service identification information; a step of receiving an encryption data signal from a second P2P apparatus; and a step of performing a process of attempting to decrypt said encrypted data signal using one or more keys corresponding to one or more services in which said first P2P apparatus is interested, from among said one or more pieces of key information. | 10-09-2014 |
20140334446 | METHOD FOR DATA OFFLOADING IN WIRELESS COMMUNICATION SYSTEM, AND DEVICE FOR SAME - Disclosed are a method for data offloading in a wireless communication supporting multiple radio access networks, and a device for the same. Specifically, the method comprises: a step in which a neighboring cell report including an identifier for a wireless local area network (WLAN) access point (AP) is received from a first terminal and a second terminal; a step in which, if the first and second terminals are communicating with one another and the WLAN AP identifiers transmitted by the first and second terminals are the same, an offloading indication message, indicating the offloading of first and second terminal data, is transmitted to the WLAN AP having the WLAN AP identifier; and a step in which an offloading command message, ordering the transmission and reception of data via the WLAN AP, is transmitted to the first and second terminals. | 11-13-2014 |
20140347985 | METHOD AND APPARATUS FOR SETTING UP LINK AT HIGH-SPEED IN WIRELESS COMMUNICATION SYSTEM - Disclosed are a method and an apparatus for setting up a session at a high speed in a WLAN system or a LAN LTE system. A method for a station (STA) setting up a link at a high speed in a wireless communication system, according to one embodiment of the present invention, comprises the steps of: transmitting a request frame comprising information related to bandwidth requested by the STA to an access point (AP); and receiving from the AP a response frame, which is decided on the basis of the information related to the bandwidth that is requested, comprising information indicating whether to accommodate the request. | 11-27-2014 |
20150016239 | METHOD AND APPARATUS FOR SETTING REFERENCE SIGNAL - Disclosed are a method and an apparatus for setting a reference signal. A wireless apparatus receives a primary synchronization signal (PSS) transmitted by a first orthogonal frequency division multiplexing (OFDM) symbol and a secondary synchronization signal (SSS) from a second OFDM symbol, and can search information for setting a reference signal on the basis of symbol numbers of the first OFDM symbol and the second OFDM symbol. Inter-cell interference can be reduced by means of a variety of methods for setting a reference signal. | 01-15-2015 |
20150016310 | METHOD AND DEVICE FOR TRANSMITTING DATA FOR HALF-DUPLEX DEVICE - A method for transmitting data for a half-duplex device in a wireless communication system is provided. The half-duplex device receives first downlink control information from a base station in a first subframe. The half-duplex device transmits uplink data to the base station in a second subframe. The first downlink control information includes a resource through which the uplink data is transmitted and information on the second subframe. | 01-15-2015 |
20150016339 | USER EQUIPMENT AND METHOD FOR RECEIVING SYNCHRONIZATION SIGNALS, AND BASE STATION AND METHOD FOR TRANSMITTING SYNCHRONIZATION SIGNALS - The present invention relates to a new type of carrier wave having a different configuration from existing carrier waves. The new type of carrier wave is detected by using at least one of a primary synchronization signal (PSS) and a secondary synchronization signal (SSS). When the new type of carrier wave is formed for detection by using only one of the PSS or the SSS, or by using both of the PSS and SSS, the new type of carrier wave includes PSS and SSS transmissions which are different from existing PSS and SSS transmissions. | 01-15-2015 |
20150016377 | METHOD AND APPARATUS FOR UPLINK TRANSMISSION - Disclosed are a method and an apparatus for uplink transmission. A method for uplink transmission for a machine-type communication (MTC) terminal comprises: a step of transmitting first uplink (UL) information via a first UL channel in a first terminal-specific frequency band of a first subframe; and a step of transmitting second UL information via a second UL channel in a second terminal-specific frequency band of a second subframe subsequent to the first subframe. The first subframe and the second subframe each include a plurality of orthogonal frequency division multiplexing (OFDM) symbols. If the first terminal-specific frequency band and the second terminal-specific frequency band do not overlap one another, the second UL information may not be transmitted in a first OFDM symbol of the second subframe. Thus, a wireless resource can be efficiently utilized. | 01-15-2015 |
20150023331 | METHOD AND USER EQUIPMENT FOR RECEIVING REFERENCE SIGNALS, AND METHOD AND BASE STATION FOR TRANSMITTING REFERENCE SIGNALS - According to the present invention, a common reference signal is transmitted in a subframe configured to receive the common reference signal and/or a fixed subframe predefined to receive the common reference signal, from among a plurality of subframes within a frame. In the present invention, the common reference signal is transmitted in every subframe within a legacy frame duration. However, the common reference signal is transmitted in said configured subframe and/or said fixed subframe within a frame duration which is not a legacy frame duration. | 01-22-2015 |
20150024744 | METHOD FOR CELL SELECTION FOR NARROWBAND TERMINAL AND APPARATUS USING SAME - Provided are a method for cell selection for a narrowband terminal and an apparatus using same. A narrowband terminal receives a wireless frame comprising a first synchronous signal for a user equipment supporting a first bandwidth, and a second synchronous signal for a user equipment supporting a second bandwidth which is narrower than the first bandwidth. The narrowband terminal searches at least one neighboring cell on the basis of the second synchronous signal. The narrowband terminal selects at least one cell from among one or more neighboring cells. | 01-22-2015 |
20150030090 | COMMUNICATION METHOD FOR USER EQUIPMENT AND USER EQUIPMENT, AND COMMUNICATION METHOD FOR BASE STATION AND BASE STATION - The present invention relates to subframe configuration information for half duplex frequency duplex (HD-FDD) or time division duplex (TDD). The subframe configuration indicates which of a predefined plurality of continuous subframes is a subframe for downlink reception, which of the plurality of contiguous subframes is a subframe for uplink transmission, or which of the plurality of contiguous subframes is a special subframe that includes at least one OFDM symbol for the downlink reception and at least one OFDM symbol for the uplink transmission. | 01-29-2015 |
20150036653 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING DATA - A method and apparatus of transmitting and receiving data is provided. A user equipment receives physical downlink shared channel data on a PDSCH in a second subframe from a second serving cell to the user equipment. The second serving cell is activated by the first serving cell, and the second serving cell does not map the PDSCH data to a second RE corresponding to a first resource element of the first subframe mapped with the CRS. The CRS is generated from a pseudo random sequence that is initiated by a cell identifier of the first serving cell and the PDSCH is indicated by an enhanced physical downlink shared channel of the second subframe, and the second RE of the second subframe and the first RE of the first subframe overlap in a time domain and in a frequency domain. | 02-05-2015 |
20150050930 | METHOD FOR DETECTING A SIGNAL FOR DIRECT COMMUNICATION BETWEEN UE'S IN A WIRELESS COMMUNICATION SYSTEM AND APPARATUS FOR SAME - The present invention relates to a method for transmitting an identification signal from a first UE to a second UE for direct communication between UE's in a wireless communication system. In particular, the method includes the steps of: transmitting a first identification signal formed by using a part of the information on the first UE to the second UE; and transmitting a second identification signal including the rest of the information on the first UE to the second UE, wherein the transmission duration time of the second identification signal is longer than that of the first identification signal. | 02-19-2015 |
20150055521 | METHOD AND DEVICE FOR AGGREGATING CARRIERS IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a method and a device for aggregating carriers in a wireless communication system. In the method, a first carrier is configured, and a second carrier is configured in addition to the first carrier. The first carrier is a time division duplex (TDD) carrier for which an uplink subframe and a downlink subframe are positioned at different times in a frame, and the second carrier is a carrier only for an uplink, which consists of uplink subframes. | 02-26-2015 |
20150063140 | METHOD FOR MEASURING CHANNEL USING TRACKING REFERENCE SIGNAL IN WIRELESS COMMUNICATION SYSTEM AND DEVICE USING SAME - A method for measuring a channel in a wireless communication system is provided. A terminal receives a first reference signal from a primary cell. The terminal receives a second reference signal from a secondary cell corresponding to the primary cell. The terminal measures a channel for the secondary cell on the basis of the second reference signal. A subframe in which the second reference signal is received is signaled from the primary cell. | 03-05-2015 |
20150063317 | METHOD FOR TRANSMITTING AND RECEIVING UPLINK SIGNALS, AND APPARATUS THEREFOR - The present invention relates to a method for transmitting an uplink signal in a wireless communication system. The method includes the steps of: transmitting an uplink signal in a first uplink transmitting timing period determined on the basis of a first timing advance command received from a first serving cell; and, when a specific condition is satisfied, transmitting an uplink signal in a second uplink transmitting timing period determined on the basis of a second timing advance command. | 03-05-2015 |
20150071099 | Method and Apparatus for Receiving Downlink Data in Wireless Communication System - Provided is a method for receiving downlink data in a wireless communication system. User equipment (UE) receives downlink control information in a first subframe from a primary cell. The user equipment receives downlink data from a secondary cell in a second subframe over a physical downlink shared channel (PDSCH). The user equipment determines a transmission block size in accordance with the type of the carrier of the second subframe. The user equipment decodes the PDSCH on the basis of the downlink control information and the transmission block size. | 03-12-2015 |
20150071206 | METHOD AND APPARATUS FOR TRANSMITTING SOUNDING REFERENCE SIGNALS IN WIRELESS COMMUNICATION SYSTEMS - The present invention relates to a method and apparatus for transmitting sounding reference signals in wireless communication systems. The method includes the steps of: receiving sounding reference signal (SRS) setting information indicating an SRS transmitting scheme for an uplink carrier; and transmitting the SRS in the SRS transmitting scheme determined on the basis of the SRS setting information, wherein the SRS transmitting scheme is intended for transmitting the SRS in all of the bands of the uplink carrier, or in some of the bands of the uplink carrier. | 03-12-2015 |
20150078465 | METHOD AND APPARATUS FOR TRANSMITTING REFERENCE SIGNALS - Provided is a method for transmitting a reference signal in a time division duplex (TDD)-based wireless communication system. A base station transmits a synchronization signal in a subframe including N resource blocks in a frequency domain, and K (K>1) orthogonal frequency division multiplexing (OFDM) symbols in a time domain. The base station transmits a reference signal generated on the basis of a terminal identifier in the subframe. The subframe includes a downlink pilot time slot (DwPTS), a guard period (GP), and an uplink pilot time slot (UpPTS). The DwPTS includes six OFDM symbols. The UpPTS includes two OFDM symbols. The reference signal is transmitted in the first OFDM symbol or the sixth OFDM symbol in the subframe | 03-19-2015 |
20150085782 | METHOD AND APPARATUS FOR MAKING HARQS IN CARRIER AGGREGATION SYSTEMS - The present invention relates to a method and system for making a hybrid automatic repeat requests (HARQ) in a carrier aggregation system. The method receives downlink data through a first subframe of a first carrier, transmits acknowledgement/negative-acknowledgement (ACK/NACK) for the downlink data through a second subframe of a second carrier, and re-receives the downlink data through a third subframe of the first carrier, wherein the first carrier only includes the downlink subframes, and the second carrier includes the uplink subframes and the downlink subframes. | 03-26-2015 |
20150085785 | DATA TRANSMISSION METHOD AND DATA TRANSMISSION DEVICE - A data transmission method and a data transmission device are disclosed. A method for receiving control data by a terminal can comprise the steps of demodulating downlink control information (DCI) including an assignment flag and downlink (DL) resource allocation; and demodulating physical downlink shared channel (PDSCH) data by using the DL resource allocation, wherein when the PDSCH data is demodulated on the basis of a demodulation reference signal (DM-RS), the assignment flag indicates information on a reference signal (RS) used for the demodulation of the PDSCH data or information on a PDSCH transmission antenna port. | 03-26-2015 |
20150092691 | METHOD OF RECEIVING DOWNLINK DATA AND WIRELESS DEVICE USING THE METHOD - A method of receiving downlink data in a wireless communication system and a wireless device are provided. The wireless device determines energy per resource element (EPRE) of a reference signal that is received in a transmission bandwidth of an orthogonal frequency division multiplexing (OFDM) symbol and determines the power ratio of the EPRE of the reference signal to the EPRE of a Physical Downlink Shared Channel (PDSCH) on the basis of the transmission bandwidth. The wireless device determines the EPRE of the PDSCH on the basis of the EPRE of the reference signal and the power ratio and demodulates the PDSCH. | 04-02-2015 |
20150092694 | METHOD FOR TRANSMITTING CONTROL INFORMATION ON LOW-COST MACHINE-TYPE COMMUNICATION, AND APPARATUS FOR SUPPORTING SAME - The present invention relates to a method for transmitting and receiving an uplink signal for low-cost machine-type communication (MTC) used in a wireless communication system, and the apparatuses for supporting same. The base station of the present invention sets a maximum number of RBs capable of being allocated to the MTC device to be smaller than the total number of RBs in a system band supported by the base station. The MTC device of the present invention transmits an uplink signal through a physical uplink shared channel (PUSCH) on the basis of the maximum number of RBs capable of being allocated to the MTC device. | 04-02-2015 |
20150110033 | METHOD AND APPARATUS FOR TRANSMITTING DATA - The present invention relates to a method and apparatus for transmitting data. The method for a terminal to receive downlink data includes the steps of: receiving resource allocation information from a base station; and demodulating the downlink data transmitted through a sub-resource allocation unit allocated on the basis of the resource allocation information, wherein the sub-resource allocation unit is a plurality of resource units included in one resource allocation unit and the downlink data can be demodulated on the basis of a demodulation reference signal (DM_RS). | 04-23-2015 |
20150117345 | METHOD OF DEMODULATING DATA ON NEW TYPE OF CARRIER WAVE - A method of demodulating data according to an embodiment of the present invention is presented. The method of demodulating data may include: setting a terminal to be in a transmission mode of PDSCH to which transmission diversity is applied; receiving resource allocation information on the PDSCH by the terminal; transmitting downlink (DL) data onto the PDSCH to which the transmission diversity is applied, according to the resource allocation information; receiving, from a base station, information on the number of antenna ports used for receiving a reference signal that is used for demodulating the DL data; and receiving a reference signal used for demodulating the DL data. The reference signal may be generated based on the identifier of the terminal, and the number of antenna ports used for receiving the reference signal may be the same as the number of antenna ports used for receiving the PDSCH. | 04-30-2015 |
20150139113 | METHOD AND USER EQUIPMENT FOR PERFORMING RADIO RESOURCE MANAGEMENT, AND METHOD AND BASE STATION FOR REQUESTING RADIO RESOURCE MANAGEMENT - The present invention provides a method and user equipment for performing radio resource management. The user equipment receives a request for radio resource management for a cell, and performs radio resource management for the cell based on said request for radio resource management. The request for radio resource management includes information indicating the type of reference signal to be used in the radio resource management. | 05-21-2015 |
20150146558 | METHOD AND APPARATUS FOR REPORTING CHANNEL STATE INFORMATION - Provided are a method and an apparatus for reporting channel state information in a wireless communication system. A wireless device determines a Channel status information (CSI) reference resource based on a CSI configuration, and estimates CSI from the CSI reference resource. The wireless device reports the estimated CSI to a base station. | 05-28-2015 |
20150156762 | METHOD AND APPARATUS FOR TRANSMITTING UPLINK DATA - Provided are a method and apparatus for transmitting uplink data. The method for transmitting data in a uplink subframe comprises the steps of: determining whether or not a hybrid automatic retransmission request-acknowledgement (HARQ-ACK) and uplink control information (UCI) are being simultaneously transmitted in the uplink subframe; selecting either the HARQ-ACK or UCI on the basis of the HARQ-ACK state for HARQ-ACK upon the occurrence of simultaneous transmission; and transmitting the selected HARQ-ACK or UCI in the uplink subframe. | 06-04-2015 |
20150181624 | METHOD AND TERMINAL FOR RANDOM ACCESS TO SMALL CELL - The present invention relates to a method for random access to a small cell by means of a terminal. The method can include the steps of: receiving a plurality of settings for a random access preamble; selecting one of the plurality of settings; and transmitting the random access preamble according to the one selected setting. Here, a resource on which the random access preamble can be transmitted can be provided in plurality in one subframe, and the preamble transmitted on each resource is distinguishable. | 06-25-2015 |
20150189627 | METHOD AND APPARATUS FOR TRANSCEIVING CONTROL SIGNAL - The present invention relates to a wireless communication system. More particularly, the present invention relates to a method and apparatus for receiving a control signal in a wireless communication system in which a plurality of cells are merged. The method comprises the steps of: receiving a signal indicating a deactivation of at least one cell from among the plurality of cells; and a step of deactivating said at least one cell. The deactivation-indicating signal indicates the deactivation of said at least one cell to all of a plurality of pieces of UE set to merge said at least one cell. | 07-02-2015 |
20150195062 | METHOD AND TERMINAL FOR PERFORMING HARQ - One disclosure of the present invention provides a method for performing a HARQ in a carrier aggregation. The method can comprise a step of receiving setting information with respect to a plurality of cell groups for setting a HARQ ACK/NACK, wherein each of the plurality of cell groups can comprise one or a plurality of serving cells. The method may comprise the steps of: allocating a number of bits of the HARQ ACK/NACK to cell group units, in accordance with the setting information; and transmitting the HARQ ACK/NACK to a relevant cell group in accordance with the number of bits of the HARQ ACK/NACK that are allocated. | 07-09-2015 |
20150208208 | METHOD AND USER EQUIPMENT FOR RECEIVING BROADCAST/MULTICAST SERVICE RECEIVING, AND METHOD AND BASE STATION FOR TRANSMITTING BROADCAST/MULTICAST SERVICE - The broadcast/multicast service according to the present invention is transmitted/received in a partial frequency region rather than the entire system bandwidth of a cell. The user equipment of the present invention may receive information regarding the frequency region set in the cell for receiving the broadcast/multicast service and receive the broadcast/multicast service over the frequency region based on the information. | 07-23-2015 |
20150208372 | METHOD AND USER EQUIPMENT FOR SYNCHRONIZING COMPONENT CARRIERS USED IN CARRIER AGGREGATION - According to the present invention, user equipment synchronizes a specific component carrier with an NCT-type component carrier with respect to time and/or frequency. The cell synchronization method for synchronizing predetermined cells by user equipment according to the present invention may include receiving reference cell information relating to a first synchronization reference cell for the predetermined cells, acquiring first synchronization information from the first synchronization cell based on the reference cell information, and performing the synchronization of the predetermined cells based on the first synchronization information. | 07-23-2015 |
20150208402 | METHOD AND DEVICE FOR TRANSMITTING UPLINK CONTROL INFORMATION - One embodiment of the present specification discloses a method for transmitting uplink control information (UCI). The method may be performed by a terminal and comprise receiving control information for setting such that an uplink control channel and an uplink shared channel are not simultaneously transmitted on one uplink subframe; selecting one of the channels, if first uplink control information (UCI) for a first cell and second uplink control information (UCI) for a second cell are requested to be simultaneously transmitted on the one uplink subframe through the uplink control channel in case of the first uplink control information (UCI) and through the uplink shared channel in case of the second uplink control information (UCI); and transmitting at least one from among the first uplink control information (UCI) and the second uplink control information (UCI) on the uplink subframe through the selected channel. | 07-23-2015 |
20150230211 | METHOD FOR RECEIVING DOWNLINK SIGNAL, AND USER DEVICE; AND METHOD FOR TRANSMITTING DOWNLINK SIGNAL, AND BASE STATION - In the present invention, a demodulation reference signal is transmitted using a plurality of settings in which demodulation reference signals occupy different positions in at least a density or time-frequency resource region of the demodulation reference signals. A base station can transmit, to the user device, information indicating a setting related to a downlink signal or a setting related to an uplink signal from among the plurality of settings, and the user device can receive the demodulation reference signal with the downlink signal or transmit the demodulation reference signal With the uplink signal according to the indicated setting. | 08-13-2015 |
20150245344 | METHOD AND USER DEVICE FOR RECEIVING DOWNLINK SIGNAL, AND METHOD AND BASE STATION FOR TRANSMITTING DOWNLINK SIGNAL - The present invention relates to a method and user device for transmitting first ACK/NACK information on a first cell group including a primary cell and one or more secondary cells from among a plurality of serving cells on a physical uplink control channel (PUCCH) of a specific cell in the first cell group, and to a method and base station for receiving the first ACK/NACK information on the PUCCH of the specific cell. When the first ACK/NACK information includes only ACIQNACK for the primary cell, the specific cell is the primary cell, and, when the first ACK/NACK information includes ACK/NACK on at least one of the one or more secondary cells, the specific cell is a secondary cell from among the one or more secondary cells of the first cell group that is set for the ACK/NACK transmission. | 08-27-2015 |
20150249517 | METHOD FOR RECEIVING SIGNAL USING INTERFERENCE REMOVAL SCHEME AND APPARATUS FOR SAME IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a method by which a terminal receives a downlink signal from a base station in a wireless communication system. In detail, the method includes the steps of: receiving information about resource elements for interference channel estimation from an adjacent base station; estimating the interference channel from the adjacent base station using the resource elements for the interference channel estimation; and applying reception beam forming to avoid the interference channel and receive the downlink signal from the base station, wherein the downlink signal is not mapped to the resource elements for the interference channel estimation. | 09-03-2015 |
20150249972 | METHOD AND USER DEVICE FOR RECEIVING UPLINK CONTROL INFORMATION, AND METHOD AND BASE STATION FOR TRANSMITTING UPLINK CONTROL INFORMATION - The base station of the present invention notifies a user device of a first set of cells and a set of parameters corresponding respectively to the cells of the first set of cells, and notifies the user device of a second set of cells that is a subset of the first set of cells and that is associated with the user device. The user device may receive a downlink signal or transmit an uplink signal by sing one of the sets of parameters associated with the second set of cells. | 09-03-2015 |
20150249980 | METHOD AND USER DEVICE FOR RECEIVING UPLINK CONTROL INFORMATION, AND METHOD AND BASE STATION FOR TRANSMITTING UPLINK INFORMATION - The present invention determines a PUCCH resource based on which serving cell ACK/NACK information is related to, when a user device set as a plurality of serving cells transmits the ACK/NACK information. Moreover, if a PUCCH transmission time matches with a PUSCH transmission time, the present invention does not piggy back ACK/NACK information to PUSCH but transmits the ACK/NACK information through PUCCH. | 09-03-2015 |
20150280876 | METHOD AND APPARATUS FOR TRANSMITTING DATA, AND METHOD AND APPARATUS FOR TRANSMITTING DATA - The present invention provides a method and apparatus for transmitting data and a method and apparatus for receiving data, wherein said methods transmit/receive a reference signal in sub-frames bundled for data transmission/reception using at least an identical precoding matrix, an identical reference signal sequence, an identical reference signal generating identifier, or an identical reference signal scrambling sequence. | 10-01-2015 |
20150282126 | METHOD FOR TRANSCEIVING DOWNLINK SIGNAL IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR - Disclosed is a method for a terminal for receiving a downlink signal from a plurality of cells according to the semi-persistent scheduling (SPS) method in a wireless communication system. Specifically, the method comprises the steps of: receiving, in a first subframe, a first or second type scheduling information indicating an activation, according to the SPS method, from a serving cell from among the plurality of cells; and, in the first subframe and a second subframe configured via a higher layer after the first subframe, receiving the downlink signal from one cell from among the plurality of cells in accordance with resource allocation information comprised in the first or the second type scheduling information, wherein the first type scheduling information comprises quasi co-location (QCL) information for the serving cell and the one cell, and the QCL information applied in the first and second subframes is updated in accordance with the type of the scheduling information. | 10-01-2015 |
20150304996 | METHOD AND DEVICE FOR TRANSMITTING AND RECEIVING CONTROL SIGNAL - The present invention relates to a method and device for transmitting and receiving a control signal, and the method includes: receiving control information including scheduling information for data transmission and receipt through higher layer signaling; and receiving a trigger signal triggering data scheduling on a terminal using the scheduling information, wherein the trigger signal may be received through a physical channel that carries a hybrid automatic repeat request (HARQ)-acknowledgment (ACK) response for uplink data transmission. | 10-22-2015 |
20150333880 | METHOD AND APPARATUS FOR TRANSMITTING DOWNLINK DATA - A method for transmitting downlink data in a wireless communication system is provided. A base station generates a downlink sub-frame comprising: a first control channel for a first cell having a first frequency band; and a second control channel for a second cell having a second frequency band including a part of the first frequency band. The base station transmits the downlink data through the downlink sub-frame. | 11-19-2015 |
20160044706 | COMMUNICATION METHOD TAKING CARRIER TYPE INTO CONSIDERATION, AND APPARATUS THEREFOR - The present invention relates to a wireless communication system. More particularly, the present invention relates to a method and apparatus for a terminal to receive a downlink signal in a wireless communication system. The method includes the steps of: receiving a downlink signal through a downlink period in a subframe including the downlink period, a gap period, and an uplink period; and demodulating the downlink signal, wherein the length of the downlink period is less than or equal to half of the subframe. When the downlink signal is received on a first type of carrier, the downlink signal is demodulated using a first cell-common reference signal. When the downlink signal is received on a second type of carrier, the downlink signal is demodulated using a terminal-specific reference signal. | 02-11-2016 |
20160057720 | METHOD FOR TRANSMITTING REFERENCE SIGNAL AND APPARATUS USING THE METHOD - The method of transmitting the reference signal includes receiving a synchronization signal in a subframe including contiguous first slot and second slot, and receiving a reference signal in the subframe, in which each of the first slot and the second slot includes a plurality of RBs and a plurality of OFDM symbols, the synchronization signal includes a PSS and a SSS, the PSS is received in the last OFDM symbol of the first slot, the SSS is received in a previous symbol before the last OFDM symbol of the first slot, a cell identifier is acquired based on the PSS and the SSS, the synchronization signal is received in center 6 RBs among the plurality of RBs, and the reference signal is received in at least one OFDM symbol among the plurality of OFDM symbols in the second slot through the center 6RB. | 02-25-2016 |
Patent application number | Description | Published |
20150146692 | METHOD AND APPARATUS FOR CELL SWITCHING - Disclosed are a method and an apparatus for transmitting data. A cell switching method can comprise the steps of: allowing a primary (P)-cell base station to enable a first secondary(S)-cell; allowing the P-cell base station to receive channel state information from a second S-cell; allowing the P-cell base station to determine the second S-cell as a switching S-cell on the basis of the channel state information; allowing the P-cell base station to disable the first S-cell and enable the second S-cell. | 05-28-2015 |
20150181543 | METHOD AND TERMINAL FOR SYNCHRONIZING DOWNLINK - One disclosure of the present invention suggests a method for synchronizing a downlink. The method for synchronizing downlinks comprises the steps of: receiving from at least one cell, which belongs to a random group, a synchronization signal; synchronizing the downlink in accordance with the synchronization signal; and using the downlink synchronization, which is performed on the at least one cell, to synchronize the downlink with a target cell, when the target cell that belongs to the random group is converted from an off state to an on state, wherein the random group comprises geographically adjacent cells, and wherein the cells that are comprised in the random group can have mutually different cell IDs, but a portion of the synchronization signals can be identical. | 06-25-2015 |
20150195069 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING DATA - The prevent invention relates to a method and apparatus for transmitting and receiving data. The method for receiving control data by a terminal can include the steps of: a terminal receiving redundant information on a first control channel from a base station; the terminal receiving a first subframe from the base station and first blind decoding being performed on the first subframe in order to monitor the first control channel; the terminal receiving a second subframe from the base station and second blind decoding being performed on the second subframe on the basis of the redundant information and the first blind decoding information in order to monitor a second control channel. | 07-09-2015 |
20150195070 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING DATA - Disclosed are a method and an apparatus for transmitting and receiving data. A method for transmitting an uplink comprises the steps of: a terminal receiving periodic channel state information (CSI) configuration information; the terminal determining an uplink subframe according to the periodic CSI configuration information; and the terminal transmitting a periodic CSI through the uplink subframe, wherein the periodic CSI configuration information may include information regarding a period, subframe offset, and a reference cell to which a wireless frame number is applied. | 07-09-2015 |
20150201421 | METHOD AND APPARATUS FOR CANCELLING INTERFERENCE - A method for cancelling interference performed by a terminal in a wireless communication system is disclosed. The method includes transmitting an interference information request and Interference Cancellation (IC) scheme information to a serving Base Station (BS), receiving from the serving BS interference information determined according to the interference information request and the IC scheme information, and cancelling interference using the interference information. The IC scheme information may be transmitted when the terminal is to transmit the interference information request and an Interference to Noise power Ratio (INR) exceeds a threshold. | 07-16-2015 |
20150208358 | METHOD AND APPARATUS FOR SETTING UPLINK TRANSMISSION POWER IN WIRELESS COMMUNICATION SYSTEM - Provided are a method and a terminal device for setting uplink transmission power in a wireless communication system. A terminal acquires information on the time alignment group (TAG) for multiple supportable serving cells so as to constitute TAGs, checks whether an overlap section of subframe n and subframe n+1 for uplink transmission exists between TAGs, and sets uplink transmission power so as to scale the uplink transmission power (P | 07-23-2015 |
20150208428 | METHOD AND APPARATUS FOR INTERFERENCE CANCELLATION - Disclosed are a method and apparatus for interference cancellation. A method for receiving information for interference cancellation in a wireless communication system, according to an embodiment of the present invention, is performed by a terminal and includes receiving information on an interference configuration set related to characteristics of an interference signal, from a serving base station (BS); receiving an indicator indicating one interference configuration of the interference configuration set from an interfering BS; and performing cancellation of the interference signal using the indicated interference configuration. The interference configuration set is composed of one or more interference configurations each including a plurality of fields indicating the characteristics of the interference signal. | 07-23-2015 |
20150215097 | METHOD AND APPARATUS FOR SUPPORTING BURST TRANSMISSION IN A WIRELESS COMMUNICATION SYSTEM - A method for and apparatus for supporting burst transmission in a wireless communication system supporting multiple carriers is provided. A wireless device receives a PDCCH for the burst transmission via a first serving cell and transmits a response of the PDCCH via the first serving cell. And then, the wireless device receives PDSCHs for the burst transmission via a second serving cell and transmits a response of the PDSCHs via the first serving cell. | 07-30-2015 |
20150223234 | METHOD AND DEVICE FOR CONTROLLING TRANSMISSION POWER FOR UPLINK CONTROL CHANNEL IN CARRIER AGGREGATION SYSTEM - Provided are a method of controlling transmission power for an uplink control channel for a terminal to which a plurality of cells are assigned, and a device using the method. The method receives a first set of parameters and a second set of parameters that are used for determining transmission power for the uplink control channel and determines the transmission power for the uplink control channel by using the first set of parameters or the second set of parameters, wherein the first set of parameters or the second set of parameters is used according to one of the cells to which the uplink control channel is transmitted. | 08-06-2015 |
20150223235 | UPLINK TRANSMISSION METHOD AND UPLINK TRANSMISSION DEVICE - One embodiment of the present specification discloses an uplink transmission method in a multi-cell environment in which a single uplink resource is shared. The method may comprise: receiving control information that configures an uplink control channel and an uplink shared channel so that the uplink control channel and the uplink shared channel are not simultaneously transmitted on the same one uplink subframe, wherein the single uplink resource is shared by a first cell and a second cell; selecting any one of the uplink control channel and the uplink shared channel if a first Scheduling Request (SR) for the first cell and Uplink Control Information (UCI) for the second cell are requested to be simultaneously transmitted on the same subframe through the uplink control channel and the uplink shared channel, respectively; sending the selected channel on the uplink subframe. | 08-06-2015 |
20150245323 | METHOD AND USER EQUIPMENT FOR RECEIVING DOWNLINK SIGNAL AND METHOD AND BASE STATION FOR TRANSMITTING DOWNLINK SIGNAL - The present invention provides: a base station for repeatedly transmitting a physical downlink control channel (PDCCH) during a first subframe bundle comprising a plurality of subframes, and transmitting a PDSCH related to the PDCCH; and user equipment for receiving the PDCCH and the PDSCH. The PDSCH can be transmitted to the user equipment starting from subframe n+k, which is the k | 08-27-2015 |
20150245347 | METHOD AND APPARATUS FOR PERFORMING UPLINK TRANSMISSION IN A WIRELESS COMMUNICATION SYSTEM - A method for and apparatus for transmitting uplink transmission in a wireless communication system supporting multiple carriers is provided. A wireless device transmits the uplink transmission via an alternative Primary serving cell or Secondary serving cell in uplink between the UE and the eNB. Herein the uplink transmission is configured by enabling information with corresponding serving cell as the Primary serving cell or the Secondary serving cell for the uplink transmission. And then, a PUCCH and/or PUSCH can performed on the enabling serving cell and/or cells in consideration of power control more accurately and efficiently. | 08-27-2015 |
20150256312 | METHOD AND APPARATUS FOR CONFIGURING A REFERENCE SIGNAL IN A WIRELESS COMMUNICATION SYSTEM - A method for and apparatus for configuring a reference signal (RS) in a wireless communication system supporting multiple carriers is provided. A wireless device configures a new RS subframe at a periodicity among other subframes not including the new RS, identifies the new RS in the subframe which is a different subframe from the other subframes for legacy RS signals, and performs at least one of frequency or timing tracking using the new RS, wherein a frequency density of the new RS in the subframe is located with at least 3 resource element each other. And, this invention includes that RS signals and controls for multi-CCs are provided checking conflicts between the more accurately and efficiently. | 09-10-2015 |
20150256316 | METHOD AND APPARATUS FOR RECEIVING ACK/NACK IN WIRELESS COMMUNICATION SYSTEM - The present invention provides a method for receiving acknowledgement/not-acknowledgement (ACK/NACK) of a terminal in a wireless communication system. The method transmits uplink data through an uplink data channel and receives ACK/NACK for the uplink data. The uplink data channel is transmitted through aggregated carriers and the aggregated carriers include a first band recognizable to first and second type terminals and a second band recognizable only to the second type terminal. | 09-10-2015 |
20150257150 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING DATA - The present invention relates to a method and apparatus for transmitting and receiving data. The method can include the steps of: a terminal transmitting, to a primary cell (P-cell), a first ACK/NACK for downlink transmission of the P-cell through a first uplink ACK/NACK channel; and transmitting, to a secondary cell (S-cell), a second ACK/NACK for downlink transmission of a first S-cell through a second uplink ACK/NACK channel. | 09-10-2015 |
20150257173 | METHOD AND USER EQUIPMENT FOR RECEIVING SIGNAL AND METHOD AND BASE STATION FOR TRANSMITTING SIGNAL - The present invention provides a method and an apparatus for reducing the amount of upper layer signals. Also, the present invention provides a method and an apparatus comprising: defining a new identifier for transmitting an upper layer signal for user equipment in a specific mode; and transmitting the upper layer signal by means of scrambling by using the new identifier, transmitting along with an error detection sign by using the new identifier, transmitting by using a user equipment-specific reference signal by using the new identifier, or transmitting based on control information transmitted by using the new identifier. | 09-10-2015 |
20150264666 | METHOD AND APPARATUS FOR SUPPORTING A CARRIER AGGREGATION GROUP IN A WIRELESS COMMUNICATION SYSTEM - A method for and apparatus for supporting a carrier aggregation group in a wireless communication system supporting multiple carriers is provided. A wireless device receives a RRC configuration signal including one or more serving cells from a macro cell and a RRC configuration signal including one or more serving cells from a small cell, and configures at least two carrier aggregation group (CAG)s based on the RRC configuration signal each. And, this invention includes that cell planning for multi-CCs is provided more accurately and efficiently. | 09-17-2015 |
20150264704 | METHOD AND APPARATUS FOR REPORTING CHANNEL STATE BY REFLECTING INTERFERENCE CANCELLATION PERFORMANCE - Disclosed is a method for reporting a channel state in a wireless communication system, the method performed by a terminal and including reporting channel state information (CSI) to a base station (BS), transmitting CSI correction information for correcting the reported CSI, to the BS, and receiving a downlink channel scheduled based on the CSI correction information, wherein the CSI correction information indicates a change in channel state due to dynamic interference. | 09-17-2015 |
20150282036 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING DATA IN A WIRELESS COMMUNICATION SYSTEM - A method for and apparatus for transmitting and receiving data in a wireless communication system supporting multiple carriers is provided. A wireless device determines that a radio link failure (RLF) or a switch trigger condition is occurred for a cell among the multiple carriers, herein the multiple carriers each is set to a cell each, reconfigures an enhanced Physical Downlink Control Channel (ePDCCH) set of the cell that the RLF or the switch trigger is occurred, and determines whether cells of the multiple carriers each is on or off according to the reconfiguring. Thus, more efficient and accurate cell planning schemes are provided to transmit between the small cells and the UE to support inter-cell interference reduction and carrier extensions. | 10-01-2015 |
20150289144 | METHOD AND APPARATUS FOR SUPPORTING A CONTROL PLANE AND A USER PLANE IN A WIRELESS COMMUNICATION SYSTEM - A method for and apparatus for supporting a control plane (C-plane) and user plane (U-plane) in a wireless communication system supporting multiple carriers is provided. A wireless device receives a signal to initiate inter-frequency measurement from a macro cell, performs the inter-frequency measurement, and determines to configure a small cell for data transmission based on the inter-frequency measurement. And, this invention includes that a C-Plane and a U-Plane split over different carriers are existed and operated more accurately and efficiently. | 10-08-2015 |
20150289237 | METHOD AND APPARATUS FOR RECEIVING DATA - Disclosed are a method and apparatus for receiving data. The method for receiving data of a terminal includes the steps of: receiving, from a base station, information that a modulation scheme used in an allocated resource block is 256 quadrature amplitude modulation (QAM); determining a modulation and coding scheme (MCS) index and first resource allocation information on the allocated resource block on the basis of downlink control information (DCI); determining an ITBS on the basis of the MCS index; determining second resource allocation information on the basis of the first resource allocation information; and determining the transmission block size on the basis of the ITBS and second resource allocation information. | 10-08-2015 |
20150295743 | METHOD AND USER EQUIPMENT FOR TRANSRECEIVING TDD - According to one embodiment of the present invention, suggested is a method for user equipment transreceiving a time division duplex. The method comprises the steps of: receiving from a cell first information on a downlink (DL)-uplink (UL) subframe configuration according to the TDD; receiving second information on whether to apply a third cyclic prefix (CP), which has a reduced length compared to a first CP and a second CP; and depending on the first information, determining whether to apply the third CP to the downlink subframe and the uplink subframe according to the second information. | 10-15-2015 |
20150296490 | METHOD AND APPARATUS FOR SUPPORTING TRANSMISSION EFFICIENCY IN A WIRELESS COMMUNICATION SYSTEM - A method for and apparatus for supporting transmission efficiency in a wireless communication system is provided. A wireless device determines a message type based on information, the message type indicating a plurality of transmission types; and performs adaptive measurement, data process, and power control according to the message type. Herein the information indicates one of the plurality of candidate message types that are predefined or are defined by a RRC message. | 10-15-2015 |
20150296518 | METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING DATA IN WIRELESS COMMUNICATION SYSTEM - Disclosed is a method and apparatus for transmitting/receiving data in a wireless communication system. The method includes: a terminal transmitting a coverage enhancement request or capability information for the terminal; a base station determining a channel setting for the terminal based on the transmitted request or information; and transmitting downlink data and performing random access on the basis of the determined channel setting. Namely, a scheme for adaptively transmitting and receiving data in consideration of the coverage of the terminal is proposed. | 10-15-2015 |
20150304074 | METHOD AND APPARATUS FOR DETERMINING NUMBER OF HARQ PROCESSES IN WIRELESS COMMUNICATION SYSTEM - Provided are a method for determining the number of hybrid automatic repeat request (HARQ) processes in a carrier aggregated system configured with a plurality of serving cells, and an apparatus using such a method. The method receives data from a downlink subframe of a second serving cell, and transmits an ACK/NACK signal for the data from an uplink subframe of a first serving cell, wherein the first serving cell uses a first-type frame, the second serving cell uses a second-type frame, and the number of HARQ processes in the second serving cell are determined with respect to each subframe comprised in the second-type frame and on the basis of the number of downlink subframes comprised in each section comprising a set number of subframes. | 10-22-2015 |
20150304080 | METHOD AND APPARATUS FOR TRANSCEIVING REFERENCE SIGNAL IN WIRELESS COMMUNICATION SYSTEM - Disclosed are a method and an apparatus for transceiving a reference signal in a wireless communication system. The present invention discloses a scheme for transceiving the reference signal the reference signal that is selectively added based on the capacity and characteristics of a terminal. The added reference signal may include newly defined CRS, DM-RS, TRS, MBSFN-RS or new RS or the like for cell recognition of the terminal, synchronization signal, measurement, etc. The location of a specific symbol/frequency of the like and selective power boosting are also disclosed for the added reference signal. Further, the transmission density of RS can be adaptively and selectively channel and transmitted as needed. Thus, data can be adaptively transceived in consideration of the coverage based on the location of characteristics of the terminal. | 10-22-2015 |
20150304082 | METHOD BY WHICH TERMINAL TRANSMITS AND RECEIVES SIGNAL IN MULTI CELL-BASED WIRELESS COMMUNICATION SYSTEM, AND DEVICE FOR SAME - Disclosed is a method by which a terminal transmits and receives a signal in a multi cell-based wireless communication system. Particularly, the method comprises the steps of: transmitting, to a serving cell, capability information in which the number of supportable channel status information (CSI) processes is set to zero; receiving, from the serving cell, information on a neighboring cell through an upper layer signal as a response to the capability information; receiving a cell-specific reference signal from the neighboring cell; reporting, to the serving cell, the CSI estimated on the basis of the cell-specific reference signal; and receiving, from the neighboring cell, a user equipment specific reference signal and a data channel on the basis of the CSI. | 10-22-2015 |
20150304088 | METHOD AND APPARATUS FOR TRANSMITTING ACK/NACK IN WIRELESS COMMUNICATION SYSTEM - Provided are a method for transmitting an ACK/NACK by a terminal configured with a plurality of serving cells, and a terminal using such a method. The method comprises: receiving data from a downlink subframe of a first serving cell; and transmitting the data for the ACK/NACK signal from an uplink subframe of a second serving cell; wherein the uplink subframe is determined in accordance with the ACK/NACK timing of the first serving cell, or the ACK/NACK timing of the second serving cell if the data is received from a downlink subframe of the second serving cell, which is identical to the downlink subframe of the first serving cell. | 10-22-2015 |
20150304925 | METHOD AND TERMINAL FOR APPLYING CHANGED SYSTEM INFORMATION - According to one disclosure of the present specification, a method for applying system information changed in a terminal is presented. The method for applying the changed system information includes the steps of: receiving an indicator providing notice of a change of a system information set from a cell; receiving information on the time when the change of system information is applied; when the indicator is received in subframe n, determining that the changed system information is applied after k periods based on the information from the n subframe. | 10-22-2015 |
20150304995 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING DATA IN A WIRELESS COMMUNICATION SYSTEM - A method for and apparatus for transmitting and receiving data in a wireless communication system supporting multiple carriers is provided. A wireless device determines a starting OFDM symbol of a physical downlink shared chancel (PDSCH) which is variably located by presence of reference signal (RS), a number of physical resource block (PRB)s used for an enhanced physical downlink control channel (ePDCCH), and receives the ePDCCH. The ePDCCH is set by one or more sets of PRBs within the PDSCH configured for a UE to monitor the ePDCCH. Thus, more efficient and accurate scheduling with lower complexity and reduction of control overhead of a master cell (as PCell), for multi-UEs and variable control information transmissions are supported in this invention. | 10-22-2015 |
20150312775 | METHOD AND APPARATUS FOR SUPPORTING CONTROL PLANE AND USER PLANE IN WIRELESS COMMUNICATION SYSTEM - A method for and apparatus for supporting a control plane (C-plane) and a user plane (U-plane) in a wireless communication system supporting multiple carriers is provided. A wireless device configures a cell for the U-plane to receive and transmit data, determines to enable a User Plane Reception Period (U-RP) corresponding to the cell for the U-plane, and determines to receive and transmit data with the cell for the U-plane during the enabled U-RP. The cell for the U-plane includes at least one or more serving cells, and the cell for the U-plane has a different frequency from a cell for the C-plane. | 10-29-2015 |
20150312784 | METHOD FOR PERFORMING MEASUREMENT AND TERMINAL - There is provided a method for performing measurements. The method may be performed by a user equipment (UE) and comprise: receiving measurement configuration information including a measurement timing configuration for a discovery signal; and performing measurements for a first cell and measurements for a second cell. The measurement timing configuration for the discovery signal may be applied to the measurements for the second cell, but not to the measurements for the first cell. | 10-29-2015 |
20150312789 | METHOD FOR PERFORMING MEASUREMENT AND TERMINAL - There is a method for performing measurements. The method may be performed by a user equipment (UE) and comprise: receiving a measurement subframe pattern for a neighbor cell and a measurement timing configuration for a discovery signal; selecting at least one or more subframes to perform the measurement based on both of the measurement subframe pattern and the measurement timing configuration; and performing the measurement by using the discovery signal of the neighbor cell on the selected subframes. | 10-29-2015 |
20150319718 | METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING SIGNALS - The present invention relates to a method and an apparatus for transmitting uplink signals to a plurality of transmission points in a wireless communication system, comprising: receiving information on at least one parameter set group through upper layer signaling, wherein each of the at least one parameter set group includes a plurality of parameter sets; detecting a physical downlink control channel (PDCCH) comprising indication information for indicating specific parameter sets which belong to one of the parameter set groups from among the at least one parameter set group; and transmitting a physical uplink shared channel (PUSCH) by using the specific parameter set, wherein each of the plurality of parameter sets includes information on a power control parameter and information on timing advance (TA) for transmitting the PUSCH signal. | 11-05-2015 |
20150319777 | METHOD AND APPARATUS FOR TRANSMITTING DOWNLINK CONTROL INFORMATION IN WIRELESS COMMUNICATION SYSTEM - Provided are a method and an apparatus for transmitting downlink control information in a wireless communication system configured with a plurality of serving cells. The method generates downlink control information scheduling frequency division duplex (FDD) cells by means of FDD frames (DCI_FDD) and downlink control information scheduling time division duplex (TDD) cells by means of TDD frames (DCI_TDD), and transmits the DCI_FDD and the DCI_TDD, wherein parts of the fields of DCI_FDD and DCI_TDD are generated to have equal bit sizes, and if the FDD or TDD cell is used exclusively, then said parts of the fields in the FDD and TDD cells have mutually different bit sizes. | 11-05-2015 |
20150334762 | METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING SIGNALS - The present invention relates to a method and an apparatus for transmitting uplink signals to a plurality of transmission points in a wireless communication system, comprising: receiving information on at least one parameter set group through upper layer signaling, wherein each of the at least one parameter set group includes a plurality of parameter sets; detecting a physical downlink control channel (PDCCH) comprising indication information for indicating specific parameter sets which belong to one of the parameter set groups from among the at least one parameter set group; and transmitting a physical uplink shared channel (PUSCH) by using the specific parameter set, wherein each of the plurality of parameter sets includes information on a power control parameter and information on timing advance (TA) for transmitting the PUSCH signal. | 11-19-2015 |
20150341156 | METHOD AND APPARATUS FOR TRANSMITTING UPLINK SIGNALS IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a wireless communication system. More particularly, the present invention relates to a method and an apparatus for a terminal transmitting ACK/NACK information in a carrier aggregation-based wireless communication system, comprising the steps of: aggregating a first TDD cell having a first UD configuration and a second TDD cell having the first UD configuration; transmitting ACK/NACK information corresponding to the first TDD cell through a UL SF on the first TDD cell; and transmitting ACK/NACK information corresponding to the second TDD cell through a UL SF on the second TDD cell, wherein the timing of the UL SF on the first TDD cell is provided as a UL SF set according to the first UD configuration, and the timing of the UL SF on the second TDD cell is provided based on a subset under the UL SF set according to the first UD configuration. | 11-26-2015 |
20150341864 | METHOD AND APPARATUS FOR TRANSMITTING UPLINK SIGNALS IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a wireless communication system. More particularly, the present invention relates to a method and an apparatus for a terminal controlling uplink power in a carrier aggregation-based wireless communication system, comprising the steps of: configuring a first cell and a second cell; transmitting a first PUCCH signal from subframe #n in the first cell; and transmitting a second PUCCH signal from subframe #n in the second cell, wherein when the sum of transmit power of the first PUCCH signal and transmit power of the second PUCCHJ signal exceeds a predetermined maximum transmit power configured to the terminal, the transmit power of the PUCCH signal having a lower priority from among the first UCCH signal and the second PUCCH signal is reduced or the transmission is dropped. | 11-26-2015 |
20150341865 | METHOD AND APPARATUS FOR TRANSMITTING UPLINK SIGNALS IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a wireless communication system. More particularly, the present invention relates to a method and an apparatus for a terminal controlling uplink power in the wireless communication system, comprising the steps of: configuring an uplink subframe (UL SF) of a first set and a UL SF of a second set; receiving a downlink control information (DCI) format including a bitmap for indicating transmit power control (TPC) for a plurality of terminals; and controlling transmit power of an uplink channel by using TPC information on the terminals from the bitmap, wherein the TPC information is used for controlling transmit power of an uplink channel transmitted from the UL SF of the first set when the DCI format comprises a first identifier, and the TPC information is used for controlling transmit power of an uplink channel transmitted from the UL SF of the second set when the DCI format comprises a second identifier. | 11-26-2015 |
20150341877 | METHOD AND APPARATUS FOR PERFORMING SYNCHRONIZATION IN WIRELESS COMMUNICATION SYSTEM - A method for and apparatus for performing a synchronization in a wireless communication system is provided. A wireless device checks a configuration including a resource relationship about reference signals (RSs) between a first cell and a second cell; receives a first reference signal (RS) from the first cell; determines a timing reference to receive a second RS based on the resource relationship; receives the second RS from the second cell based on the timing reference; performs a frequency tracking using the second RS; and decodes data signals from the second cell. | 11-26-2015 |
20150341918 | METHOD FOR RECEIVING CONTROL INFORMATION IN WIRELESS COMMUNICATIONS SYSTEM AND APPARATUS THEREFOR - The present invention relates to a wireless communication system. More specifically, a method for enabling a terminal to receive control information in a wireless communications system according to the present invention includes the steps of: constituting PCell and SCell; and monitoring a plurality of expected channels in a search space to receive the control information from a sub-frame #n in SCell, wherein if the sub-frame #n is included in a particular sub-frame set, the search space includes CSS, or if the sub-frame #n is not included in the particular sub-frame set, the search space includes only USS. | 11-26-2015 |
20150341923 | METHOD AND APPARATUS FOR TRANSMITTING UPLINK SIGNALS IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a wireless communication system. More particularly, the present invention relates to a method and an apparatus for a terminal transmitting ACK/NACK information in a carrier aggregation-based wireless communication system, comprising the steps of: receiving one or more PDCCH signals from a specific SF section in an FDD cell; receiving one or more PDSCH signals indicated by the one or more PDCCH signals; and transmitting ACK/NACK information corresponding to the one or more PDSCH signals through a physical uplink control channel (PUCCH), wherein the specific SF section includes one or more first SFs and one second SF, wherein PUCCH transmission is limited in one or more first UL SFs corresponding to the one or more first SFs, wherein PUCCH transmission is allowed from a second UL SF corresponding to the second SF, the ACK/NACK information is transmitted from the second UL SF by using a PUCCH resource allocated by an upper layer when a PDSCH signal exists in the one or more first SFs, and wherein the ACK/NACK information is transmitted from the second UL SF by using a PUCCH resource linked to an index of a resource from which a corresponding PDCCH signal is transmitted when one PDSCH signal exists only in the second SF. | 11-26-2015 |
20150349940 | METHOD AND APPARATUS FOR PERFORMING QUASI CO-LOCATION IN WIRELESS ACCESS SYSTEM - The present invention relates to various methods for performing quasi co-location (QCL) and apparatuses supporting the same. As an embodiment of the present invention, a method for performing quasi co-location (QCL) for a new carrier type (NCT) by a terminal in a wireless access system may include the steps of: receiving a higher layer signal including a QCL reference CRS information parameter indicating CRS information of a reference carrier; receiving a physical downlink control channel (PDCCH) signal including a PDSCH remapping and quasi co-location indicator (PQI) field; receiving a CSI-RS of a QCLed NCT and a CRS of a reference carrier on the basis of a PQI field and a QCL reference CRS information parameter; and performing frequency tracking of the NCT and the reference carrier on the basis of the CSI-RS of the NCT and the CRS of the reference carrier. | 12-03-2015 |
20150350941 | METHOD FOR PERFORMING DISCOVERY SIGNAL MEASUREMENTS IN WIRELESS COMMUNICATION SYSTEM AND USER EQUIPMENT THEREOF - 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. | 12-03-2015 |
20150351003 | METHOD AND DEVICE FOR DETECTING DISCOVERY SIGNAL - A method and a device for detecting a discovery signal in a wireless communication system are provided. A wireless device receives a discovery setting for detecting a discovery signal of a target cell from a serving cell, and detects the discovery signal transmitted by the target cell according to the discovery setting. The discovery setting includes information on a discovery subframe to which the discovery signal is transmitted among a plurality of subframes. | 12-03-2015 |
20150351061 | METHOD FOR ADDING SECONDARY CELL IN WIRELESS ACCESS SYSTEM SUPPORTING CARRIER AGGREGATION AND APPARATUS FOR SUPPORTING SAME - The present invention, which is utilized in a wireless access system supporting carrier aggregation (CA), relates to methods for acquiring an uplink synchronization from two or more geographically distanced cells, particularly S-cells, and indicating that the corresponding cell is an S-cell, and to an apparatus for supporting same. | 12-03-2015 |
20150351092 | DATA TRANSMISSION METHOD FOR TERMINAL IN A WIRELESS COMMUNICATION SYSTEM, AND TERMINAL USING THE METHOD - Provided are a data transmission method for a terminal in a wireless communication system, and a terminal using the method. The terminal determines the number of information bits transmitted via a physical uplink shared channel (PUSCH), determines the energies respectively distributed to a reference signal and data comprising the information bits in accordance with the number of information bits, and transmits the reference signal and the data at the respective determined energies. | 12-03-2015 |
20150358094 | METHOD AND APPARATUS FOR PERFORMING MEASUREMENT IN WIRELESS COMMUNICATION SYSTEM - A method for and apparatus for performing a measurement in a wireless communication system is provided. A wireless device determines information about a measurement type, the measurement type indicating one of a first measurement object and a second measurement object and performs measurement using a measurement signal at subframe(s) configured in the measurement object indicated by the measurement type. The measurement signal includes one of a discovery signal, a measurement reference signal (MRS) and a cell-common RS (CRS). | 12-10-2015 |
20150358848 | METHOD FOR RADIO RESOURCE MEASUREMENT IN WIRELESS ACCESS SYSTEM SUPPORTING CARRIER AGGREGATION, AND APPARATUS SUPPORTING SAME - The present invention relates to methods for making radio resource measurements in synchronized cells when quasi co-location is applied, and to apparatuses supporting same. A method for a terminal for making radio resource measurements (RRM) in a wireless access system according to one embodiment of the present invention may comprise the steps of: receiving an upper level signal comprising a reference signal for channel state information (CSI-RS) of a first cell, and quasi co-location (QCL) information for a cell-specific reference signal (CRS) and/or CSI-RS of a second cell; receiving the CRS and/or CSI-RS of the second cell on the basis of the QCL information; and measuring a first RRM for the first cell by means of the CRS and/or the CSI-RS of the second cell. | 12-10-2015 |
20150358986 | METHOD FOR TRANSRECEIVING SIGNALS AND APPARATUS FOR SAME - The present invention relates to a method for transmitting a signal in a wireless communication system and an apparatus for same, and comprises the steps of: receiving a plurality of data signals through a plurality of subframes; and transmitting acknowledgement (ACK)/negative ACK (NACK) signals with respect to the plurality of data signals, wherein when at least one subframe from among the plurality of subframes is a special subframe, an ACK/NACK signal with respect to a first data signal that is received through the at least one subframe is transmitted from an uplink subframe different from an uplink subframe from which an ACK/NACK signal with respect to a second data signal from among the plurality of data signals, not including the first data signal, is transmitted. | 12-10-2015 |
20150358997 | METHOD FOR TRANSRECEIVING SIGNAL AND APPARATUS FOR SAME - The present invention relates to a method for receiving a signal in a wireless communication system and an apparatus for same, and comprises a step of receiving, via a physical downlink control channel, downlink control information including scheduling information for a K number of subframes, wherein K is bigger than 1, the scheduling information is not applied to at least one subframe when the at least one subframe from among the K number of subframes is a special subframe, and wherein the special subframe is at least a subframe configured to a multicast-broadcast single-frequency network (MBSFN), a subframe configured to receive a physical multicast channel (PMCH), a subframe configured so that a positioning reference signal (PRS) is transmitted, or a subframe including a downlink section, a protection section, and an uplink section. | 12-10-2015 |
20150359029 | METHOD AND APPARATUS FOR COMMUNICATING IN CARRIER AGGREGATION SYSTEM - Provided are a communication method in a carrier aggregation system in which a plurality of cells are aggregated, and an apparatus utilizing such a communication method. The plurality of cells can be cells using mutually different frame structures. The communication method receives an uplink grant from a first downlink subframe of a first cell, and transmits a PUSCH from a first uplink subframe of a second cell on the basis of the uplink grant. The uplink grant comprises an uplink DAI, and, with GL being the time interval between the first downlink subframe and the first uplink subframe, the UL DAI indicates the number of downlink subframes, from among the plurality of downlink subframes of the second cell connected so as to transmit an acknowledgement/not-acknowledgement (ACK/NACK) from the first uplink subframe, for which the time interval to the first uplink subframe is equal to or greater than the GU. | 12-10-2015 |
20150359036 | COMMUNICATION METHOD AND DEVICE OF TERMINAL IN WIRELESS COMMUNICATION SYSTEM - Provided are a communication method of a terminal in a wireless communication system and the terminal using the method. The method comprises: receiving a cell state signal from a small cell; and communicating with the small cell on the basis of the cell state signal, wherein the cell state signal includes information indicating the switching of the small cell to an off-state. | 12-10-2015 |
20150365209 | METHOD AND APPARATUS FOR PERFORMING RESOURCE ALLOCATION IN WIRELESS COMMUNICATION SYSTEM - A method for and apparatus for performing resource allocation in a wireless communication system is provided. The apparatus includes receiving a configuration of an entire system bandwidth including a predefined system bandwidth and a carrier segment in which is allocated in not available region for the predefined system bandwidth; checking an indication to indicate whether the entire system bandwidth is available or not for the UE, and information for the entire system bandwidth in the configuration; and receiving a reference signal and a control signal at subframes determined based on the indication and the information. | 12-17-2015 |
20150373626 | METHOD AND APPARATUS FOR PERFORMING DATA TRANSMISSION IN WIRELESS COMMUNICATION SYSTEM - A method for and apparatus for performing data transmission in a wireless communication system is provided. A wireless device checks a configuration including virtual cell groups, the virtual cell group each including two more serving cells which are shared an identical virtual cell identification (ID), checks discovery signals scrambled with the identical virtual cell ID and system information including a physical random access channel (PRACH) configuration, from master cells each of the virtual cell groups. Thus, the UE performs data transmission seamlessly because serving cells are belonged to the identical virtual cell ID even if a serving cell is switched from one to another in view of a physical cell. | 12-24-2015 |
20150373628 | METHOD FOR DETECTING SMALL CELL ON BASIS OF DISCOVERY SIGNAL - 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. | 12-24-2015 |
20150373694 | METHOD AND USER EQUIPMENT FOR REPORTING DEMODULATION REFERENCE SIGNAL INFORMATION AND METHOD AND BASE STATION FOR RECEIVING DEMODULATION REFERENCE SIGNAL INFORMATION - The present invention provides a method and a user equipment for reporting a demodulation reference signal pattern preferred by the user equipment among demodulation reference signal patterns of which locations of demodulation reference signals, demodulation reference signal densities and the like are defined differently within a predetermined time-frequency resource region, and a method and a base station for receiving the report of the preferred demodulation reference signal pattern. | 12-24-2015 |
20150382326 | METHOD FOR SETTING SEARCH AREA FOR DETECTING DOWNLINK CONTROL INFORMATION IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS FOR SAME - Disclosed in the present application is a method for user equipment receiving a control channel from a base station in a wireless communication system. More particularly, the method comprises a step of monitoring control channel candidates in a search area on a first subframe, and receiving the control channel including control information corresponding to each of one or more subframes, beginning with a predetermined number of subframes from the first subframe, wherein when the one or more subframes are provided in a plurality, the control channel candidates are sorted according to the control information corresponding to each of the plurality of subframes. | 12-31-2015 |
20160006529 | METHOD AND APPARATUS FOR PERFORMING INTERFERENCE COORDINATION IN WIRELESS COMMUNICATION SYSTEM - 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. | 01-07-2016 |
20160006546 | METHOD AND APPARATUS FOR ALLOCATING RESOURCES FOR REFERENCE SIGNAL IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus for allocating resources for a reference signal in a wireless communication system are provided. A wireless device receives a configuration including the candidates resource element set (RES)s and indexes to be mapped to the candidates RESs for the reference signal; and receives an index indicating a RES selected according to a transmission point (TP) to perform a channel estimation by the reference signal received on the RES indicated by the index. | 01-07-2016 |
20160006548 | METHOD FOR TRANSMITTING WIRELESS SIGNAL AND DEVICE THEREFOR - The present invention relates to a wireless communication system. Particularly, the present invention relates to a method for receiving control information in a wireless communication system and a device therefor, the method comprising the steps of: receiving a PDCCH signal including uplink scheduling information; transmitting a PUSCH signal by using the uplink scheduling information: and receiving a PHICH signal including acknowledgement information on the PUSCH signal, wherein an RS for the PUSCH signal exists only in one slot per RB pair within an RB set in which the PUSCH signal is transmitted, and a resource for receiving the PHICH signal is determined by using an index of the slot in which the RS exists. | 01-07-2016 |
20160007310 | METHOD AND APPARATUS FOR PERFORMING SYNCHRONIZATION IN WIRELESS COMMUNICATION SYSTEM - A method for and apparatus for performing synchronization in a wireless communication system is provided. A wireless device receives information including a set of subframes in which a discovery signal or a synchronization signal is transmitted, and a muting pattern which is changed according to a downlink (DL)/uplink (UL) configuration of a corresponding cell; receives the discovery signal or the synchronization signal from a cell based on the information; and performs synchronization, wherein the information is indicated to cells via air interface from a source cell. | 01-07-2016 |
20160007406 | METHOD AND APPARATUS FOR PERFORMING INITIAL ACCESS PROCEDURE IN WIRELESS COMMUNICATION SYSTEM - A method for and apparatus for performing an initial access procedure in a wireless communication system is provided. A wireless device detects a discontinuous transmission (DTX) cell that operates in a discontinuous transmission (DTX) state by receiving a discovery signal from the DTX cell; transmits an initial request message to the DTX cell to request the DTX cell to transition from the DTX state to a continuous transmission (TX) state. | 01-07-2016 |
20160029250 | METHOD AND APPARATUS FOR PERFORMING CELL MANAGEMENT IN WIRELESS COMMUNICATION SYSTEM - A method for and apparatus for performing a cell management in a wireless communication system is provided. A wireless device detects a cell configuration based on a cell state, the cell state is determined by at least one of a number of UEs, a data offloading, a traffic pattern, and a UE mobility. The cell state includes a dormant or a low_active in which a resource for the reference signal is smaller than a resource for a high_active, and a transmission period of the reference signal when the cell state is in the dormant or the low_active is longer than a transmission period of a reference signal when a cell state is in the high_active. Thus, a cell specific RSs such as CRS, SIB, or paging and synchronization transmission as overhead in a cell can be minimized and controlled based on the active UEs. | 01-28-2016 |
20160029371 | METHOD FOR TRANSMITTING CONTROL INFORMATION AND DEVICE THEREFOR - The present invention relates to a wireless communication system. Particularly, the present invention relates to a method for transmitting an uplink signal in a wireless communication system and a device therefor, the method comprising the step of transmitting the uplink signal through a plurality of SC-FDMA symbols within a subframe, wherein: the uplink signal includes RI and HARQ-ACK information; the plurality of SC-FDMA symbols include an SC-FDMA symbol #n for an RS, an SC-FDMA symbol of a first set for the RI, and an SC-FDMA symbol of a second set for the HARQ-ACK; n is an integer of 0 or more; the SC-FDMA symbol of the first set includes SC-FDMA symbols #n−2, #n+2, #n+5 and #n+6; and the SC-FDMA symbol of the second set includes SC-FDMA symbols #n−1, #n+1, #n+3 and #n+4. | 01-28-2016 |
20160037491 | METHOD FOR RECEIVING CONTROL INFORMATION ON EPDCCH - In one embodiment of the present specification, provided is a method for receiving control information on an enhanced physical downlink control channel (EPDCCH). The method for receiving control information may comprise the steps of: receiving information associated with a pattern change of a demodulation reference signal (DMRS); identifying a time of changing mapping between an enhanced resource element group (EREG) and an enhanced control channel element (ECCE) for an EPDCCH, according to the pattern change of the DMRS; and receiving control information on the EPDCCH by applying the change of the mapping at the identified time. | 02-04-2016 |
20160043831 | METHOD AND DEVICE FOR RECEIVING ACK/NACK IN WIRELESS COMMUNICATION SYSTEM - Provided are a method by which a terminal receives ACK/NACK in a wireless communication system and the terminal using the method. The method comprises: transmitting data through a PUSCH; and receiving ACK/NACK for the data, wherein the ACK/NACK is received through downlink control information (DCI). | 02-11-2016 |
20160050617 | METHOD FOR RECEIVING SEARCH SIGNAL FOR DETECTING SMALL-SIZED CELL - According to one embodiment of the present description, a method by which a terminal receives a search signal from a small-sized cell is provided. The method can comprise the steps of: receiving, from a serving cell, configuration set information of search signals of clustered neighboring small-sized cells for each cluster; determining configuration information of a search signal of each of the neighboring small-sized cells belonging to a corresponding cluster on the basis of the set information; and detecting a search signal from a corresponding small-sized cell on the basis of the determined configuration information. | 02-18-2016 |
20160050647 | RECEIVING METHOD AND USER DEVICE IN SMALL-SCALE CELL - According to one disclosure in the present specification, a receiving method for a user device in a small-scale cell is provided. The receiving method may include: a step of monitoring a plurality of candidate control channels within a search space for a serving cell; and a step of acquiring downlink control information (DCI) by decoding the plurality of candidate control channels. The DCI can include a resource block assignment field, and the resource block assignment field can include information about virtual system bandwidth in the downlink system bandwidth. The receiving method may include a step of receiving a data channel over multiple subframes, based on the virtual system bandwidth. | 02-18-2016 |
20160057664 | METHOD AND APPARATUS FOR CELL TO DISCOVER ANOTHER CELL - Disclosed are a method and an apparatus for a cell to discover another cell. A method for cell discovery by a discovering cell may comprises the step of: the discovering cell receiving first discovering resource configuration information from a master cell; and the discovering cell receiving a discovering signal from at least one discovering target cell on the basis of the first discovering resource configuration information, wherein the first discovering resource configuration information may comprise information indicating a first time resource for the discovering cell to receive a discovery signal by means of a first frequency band, and information indicating a second time resource for the discovering cell to transmit downlink data to a terminal by means of the first frequency band. | 02-25-2016 |
20160057741 | METHOD AND APPARATUS FOR ALLOCATING RESOURCES TO MULTIPLE SITES WHICH USE SAME FREQUENCY BAND - Provided are a method and an apparatus for allocating radio resources to multiple sites which use the same frequency band. The method comprises: determining a resource allocation unit being used in common in the multiple sites; and allocating resources to the multiple sites on the basis of the resource allocation unit, wherein with respect to the resource allocation unit, radio resources allocated to the respective multiple sites are divided and arranged in a time domain. | 02-25-2016 |
20160057784 | METHOD AND USER EQUIPMENT FOR TRANSMITTING UPLINK SIGNAL - The present invention provides a method and user equipment for transmitting an uplink signal capable of enhancing coverage while conserving energy by separating a cell for receiving a downlink from a cell for transmitting an uplink. | 02-25-2016 |
20160065332 | METHOD FOR MULTI-SUBFRAME SCHEDULING AND APPARATUS FOR THE SAME - A method for multiple subframe sets scheduling (hereinafter, multi-subframe scheduling) in a window of the multi-subframe scheduling (hereinafter, multi-subframe scheduling window) performed by a terminal is provided. The method includes receiving multi-subframe control information for the multi-subframe scheduling, and receiving downlink data or transmitting uplink data using the multi-subframe control information, wherein the multi-subframe control information includes a field for retransmission related to each subframe of the multiple subframe sets, and the retransmission is performed in a subframe not configured as the multiple subframe sets. | 03-03-2016 |
20160080136 | COMMUNICATION METHOD CONSIDERING CARRIER TYPE AND APPARATUS FOR SAME - The present invention relates to a method in which a user equipment (UE) receives a signal in a time division duplex (TDD) wireless communication system and an apparatus for the same. More particularly, the present invention relates to a method comprising the steps of: receiving a first downlink signal in a first subframe including a downlink interval, a protection interval, and an uplink interval; and demodulating the first downlink signal, wherein the first downlink signal is demodulated using a cell-common reference signal when the downlink interval includes a predetermined number of symbols or less, and the first downlink signal is demodulated using a UE-specific reference signal when the downlink interval includes the predetermined number of symbols or more, and an apparatus for the same. | 03-17-2016 |
20160081107 | COMMUNICATION METHOD CONSIDERING CARRIER TYPE AND APPARATUS FOR SAME - The present invention relates to a method for a terminal, which operates in a half-duplex manner, to communicate with a base station in a wireless communication system supporting a plurality of carrier types, and an apparatus for the same. More particularly, the present invention relates to a method and an apparatus for the same, the method comprising the step of: transmitting a signal to, or receiving a signal from, a base station in a first cell set to be in a time division duplex (TDD) manner via a first subframe positioned between a downlink subframe and an uplink subframe, wherein if the first cell operates as a first carrier type, the first subframe includes a first downlink section, a first protection section, and a first uplink section, and if the first cell operates as a second carrier type, the first subframe includes only a second downlink section and a second protection section, or includes only a second uplink section and the second protection section. The first carrier type represents a carrier type in which a cell-common reference signal is transmitted over the entire system band in all subframes, and the second carrier type represents a carrier type in which the cell-common reference signal is transmitted over at least a part of the system band in some subframes. | 03-17-2016 |
20160081111 | METHOD AND APPARATUS FOR CONTROLLING MONITORING TIMING IN WIRELESS COMMUNICATION SYSTEM - A method for and apparatus for controlling monitoring timing in a wireless communication system is provided. A wireless device may acquire information including a monitoring subframe configuration, which is set for a first subframe in which at least one of control and reference signal is present, and a second subframe in which the control and reference signal are not present within a radio frame; determine monitoring subframes of a cell based on the information; and control to monitor the first subframe and the second subframe according to the monitoring subframes. | 03-17-2016 |
20160088595 | METHOD FOR RECEIVING SYSTEM INFORMATION BY MTC DEVICE LOCATED IN CELL COVERAGE-EXPANDED AREA - According to one disclosure of the present specification, when a machine type communication (MTC) device is located in a coverage-expanded area of a base station, the MTC device repeatedly receives system information (for example, system information blocks (SIBs) of a first type) on several subframes and then combines and decodes the received SIBs, thereby improving a decoding success rate. | 03-24-2016 |
20160095093 | METHOD AND APPARATUS FOR CONTROLLING DATA IN WIRELESS COMMINICATION SYSTEM - A method for and apparatus for controlling data transmission in a wireless communication system is provided. A wireless device acquires information including a monitoring subframe configuration, which is a subset of subframes including that control information are transmitted; determines monitoring subframes of a cell based on the information; detects control information for the data transmission according to the monitoring subframes; and rate matches data in a corresponding subframe with the detected control information. | 03-31-2016 |
20160105874 | METHOD AND TERMINAL FOR RECEIVING EPDCCH FROM SMALL CELL HAVING LOW TRANSMISSION POWER - In one disclosure of the present invention, a method is provided for receiving an enhanced physical downlink control channel (EPDCCH) from a small cell having low transmission power. The receiving method may comprise the steps of: receiving EPDCCH-PRB set information including information about a physical resource block (PRB) that will receive the EPDCCH from the small cell; and determining a subframe that will be received by the EPDCCH from the small cell on the PRB checked by the EPDCCH-PRB set information. Here, the subframe that may be received by the EPDCCH from the small cell may be determined so as not to overlap a subframe transmitted by the EPDCCH by means of one or a plurality of neighbouring cells. | 04-14-2016 |