| Patent application number | Description | Published |
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| 20120057519 | METHOD FOR TRANSMITTING CONTROL SIGNAL TO RELAY NODE AT BASE STATION IN MIMO WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR - A method for transmitting a control signal to a relay node at a base station in a multi-input multi-output (MIMO) wireless communication system is disclosed. The method comprises configuring relay-resource element groups (R-REGs) in a unit of four resource elements (REs) contiguous in the ascending order of subcarrier indexes, except for resource elements for a reference signal (RS); allocating transmission resources to the control signal in a unit of the relay-resource element group; and transmitting the control signal to the relay node by using the allocated transmission resources, wherein the resource elements for the reference signal include resource elements for channel state information-RS (CSI-RS), which include resource elements for a channel state information RS to which a transmission power of 0 is allocated. | 03-08-2012 |
| 20120218960 | METHOD FOR SELECTING PMI FOR NON-ADAPTIVE HARQ OPERATION IN A MIMO WIRELESS COMMUNICATION SYSTEM - A method for transmitting an uplink signal at a User Equipment (UE) in a wireless communication system includes receiving, from a Base Station (BS), an uplink scheduling grant for multi-antenna transmission; transmitting the uplink signal precoded using precoding information included in the received uplink scheduling grant to the BS; and retransmitting the uplink signal to the BS according to Acknowledgment/Negative Acknowledgment (ACK/NACK) corresponding to the transmitted uplink signal. The retransmitted uplink signal is precoded using precoding information included in a most recent uplink scheduling grant or a predetermined precoding matrix if an uplink scheduling grant for the retransmission is not received from the BS. | 08-30-2012 |
| 20120320816 | METHOD AND APPARATUS FOR DETERMINING SIZE OF TRANSPORT BLOCK TRANSMITTED BY BASE STATION TO RELAY NODE IN RADIO COMMUNICATION SYSTEM - A method for receiving a Relay node dedicated Physical Downlink Shared Channel (R-PDSCH) from a base station by a relay node in a radio communication system is disclosed. The method includes receiving, from the base station, a Modulation and Coding Scheme (MCS) index and the number NR-PDSCHPRB1 of first resource blocks to which the R-PDSCH is transmitted, under the assumption that a Relay node dedicated Physical Downlink Control Channel (R-PDCCH) is not transmitted, estimating the number NR-PDSCHPRB2 of second resource blocks to which the R-PDSCH is actually transmitted, using the number NR-PDSCHPRB1 of the first resource blocks and using the number NR-PDCCHPRB of resource blocks to which the R-PDCCH is transmitted, selecting the size of a transport block mapped to the R-PDSCH, using the number NR-PDSCHPRB2 of the second resource blocks and using a transport block index corresponding to the MCS index, and decoding the R-PDSCH, using the size of the transport block and using a modulation order corresponding to the MCS index. | 12-20-2012 |
| 20130010682 | METHOD AND DEVICE FOR RECEIVING DOWNLINK SIGNAL - The present invention relates to A METHOD AND A DEVICE FOR RECEIVING A DOWNLINK SIGNAL IN A WIRELESS COMMUNICATION SYSTEM. More specifically, the method of the present invention comprises the following steps: receiving first control information for downlink scheduling in the first slot of a resource block pair, wherein the first control information includes allocation information on at least one resource unit; receiving a data in the second slot of the resource block pair, when the allocation information on the resource unit having the resource block pair with the first control information has a first value; and attempting to detect second control information for uplink scheduling in the second slot of the resource block pair, when the allocation information on the resource unit having the resource block pair with the first control information has a second value. | 01-10-2013 |
| 20130010685 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING R-PDCCH - A method and apparatus for transmitting and receiving a Relay Physical Downlink Control Channel (R-PDCCH) being a control channel for a relay node (RN) in a wireless communication system are disclosed. To transmit an R-PDCCH to a RN, a BS includes a processor for interleaving a predetermined number of Control Channel Elements (CCEs), mapping the interleaved CCEs to at least one Virtual Resource Block (VRB) configured for R-PDCCH transmission, mapping the at least one VRB to at least one Physical Resource Block (PRB), and a transmitter for transmitting the R-PDCCH to the RN through the at least one PRB. | 01-10-2013 |
| 20130033998 | METHOD AND APPARATUS FOR MEASUREMENT FOR INTER-CELL INTERFERENCE COORDINATION IN RADIO COMMUNICATION SYSTEM - A wireless communication system and, more specifically, a measurement method and apparatus for inter-cell interference coordination in a wireless communication system are disclosed. Herein, a method for supporting measurement of a User Equipment (UE) by a first base station in a wireless communication system includes the steps of acquiring information of downlink subframe configuration of a second base station, determining measurement objects of downlink resource of the first base station based on the downlink subframe configuration of the second base station; transmitting information of the measurement objects to the UE, and receiving measurement result for the measurement objects from the UE. | 02-07-2013 |
| 20130034072 | METHOD AND DEVICE FOR RECEIVING DOWNLINK SIGNAL - The present invention relates to a method and a device for receiving a downlink control signal in a wireless communication system. More specifically, the present invention relates to a device and a method for receiving control information, the method comprising the following steps: receiving a subframe which includes two slots; executing a blind decoding for a first control channel in the control channel search region within a first slot; decoding a second control channel using a specific resource within a second slot when the first control channel has been detected; and executing a blind decoding for the second control channel in the control channel search region within the second slot when the first control channel has not been detected. | 02-07-2013 |
| 20130039254 | METHOD FOR BACKHAUL SUBFRAME SETTING BETWEEN A BASE STATION AND A RELAY NODE IN A WIRELESS COMMUNICATION SYSTEM AND A DEVICE THEREFOR - Disclosed is a method whereby a relay node receives a signal from a base station in a wireless communication system. More specifically, the invention comprises: a step in which a relay node receives, from the base station, a request signal for changing the size of a downlink physical control channel transmitted to a terminal corresponding to the relay node; a step in which a signal in response to the request signal is sent to the base station; a step of setting a downlink available symbol between the base station and the relay node, based on the request signal; and a step in which a relay node specific signal, sent from the base station, is received from the downlink available symbol. | 02-14-2013 |
| 20130044712 | METHOD FOR TRANSCEIVING SIGNALS BETWEEN A BASE STATION AND A RELAY NODE IN A WIRELESS COMMUNICATION SYSTEM, AND APPARATUS FOR SAME - The present application relates to a method in which a relay node receives control signals from a base station in a wireless communication system. More particularly, the method comprises: a step of receiving, from the base station, a relay-node-dedicated physical downlink control channel (R-PDCCH) via a specific subframe; and a step of performing a blind decoding process on the physical downlink control channel to detect control information for the relay node, wherein said specific subframe includes a first slot and a second slot, and the size of a relay-node-dedicated control channel element (R-CCE) for performing the blind decoding process is individually defined depending on the number of reference signals contained in the first slot and in the second slot. | 02-21-2013 |
| 20130058304 | METHOD AND DEVICE FOR RECEIVING DOWNLINK SIGNALS - The present invention relates to a method and device for receiving downlink signals in a wireless communication system. In more detail, the method for receiving downlink signals includes: receiving first control information for downlink scheduling through a first slot in a pair of resource blocks (RBs), the first control information including allocation information on a plurality of continuous RBs; receiving data from a second slot in a pair of RBs if the pair of RBs includes the first control information in the plurality of continuous RBs; and, if the pair of RBs outside the plurality of continuous RBs includes the first control information, attempting to detect second control information on uplink scheduling through a second slot of a pair of RBs. | 03-07-2013 |
| 20130064099 | METHOD FOR ALLOCATING RESOURCES IN A WIRELESS COMMUNICATION SYSTEM AND A DEVICE FOR THE SAME - The present invention relates to a wireless communication system and preferably to a wireless communication system comprising a relay. More specifically, the present invention relates to a method for allocating backhaul resources and to a device for the same. Also, the present invention relates to a method for allocating resources for a physical control channel and to a device for the same. Also, the present invention relates to a method for processing downlink signals and to a device for the same. | 03-14-2013 |
| 20130064174 | METHOD OF RECEIVING DATA FROM BASE STATION AT RELAY NODE IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREOF - A method used by a relay node for receiving a relay node specific downlink physical shared channel from a base station in a multiple antennae wireless communication system is disclosed. More specifically, the method includes the steps of demodulating a relay node specific downlink physical control channel (R-PDCCH) by using a relay node specific reference signal; and, in case a specific downlink information is detected from the demodulated relay node specific downlink physical control channel, of demodulating the relay node specific downlink physical shared channel, under an assumption that the relay node specific downlink physical shared channel is transmitted through a single antenna port by using a predetermined antenna port and scrambling identifier (ID). Herein, the specific downlink control information may correspond to a downlink control information designating a Fallback Mode. And, the predetermined antenna port and scrambling ID may respectively correspond to antenna port 7 and scrambling ID 0. | 03-14-2013 |
| 20130077543 | METHOD FOR PERFORMING A HARQ PROCESS AND APPARATUS USING SAME - The present description relates to a method for performing a HARQ process operation in a wireless communication system and to an apparatus using the method. A base station device which performs a HARQ process operation comprises a transmitter which transmits to a relay an uplink (UL) grant in a downlink backhaul subframe n which is a subframe having an index n among the allocated downlink backhaul subframes, and transmits, if downlink data sent from the relay in accordance with the uplink grant is not successfully received, a non-acknowledgement (NACK) signal in a downlink backhaul subframe n+N which is a downlink backhaul subframe that comes after N which is a predetermined number of HARQ processes counted from the downlink backhaul subframe n among the allocated downlink backhaul subframes. | 03-28-2013 |
| 20130078913 | METHOD OF TERMINAL TRANSMITTING SOUNDING REFERENCE SIGNAL ON THE BASIS OF APERIODIC SOUNDING REFERENCE SIGNAL TRIGGERING AND METHOD FOR CONTROLLING UPLINK TRANSMISSION POWER TO TRANSMIT APERIODIC SOUNDING REFERENCE SIGNAL - The method of the terminal transmitting the SRS on the basis of the aperiodic SRS triggering according to the present invention comprises the steps of: receiving a plurality of aperiodic SRS configuration information from the base station; receiving an aperiodic SRS transmission triggering indicator from the base station; selecting the specific aperiodic SRS configuration information among the plurality of aperiodic SRS configuration information on the basis of at least one among a sub-frame index for receiving the aperiodic SRS transmission triggering indicator, a time relation between the aperiodic SRS transmission sub-frames, and an uplink channel state; and transmitting an aperiodic SRS for the aperiodic SRS transmission triggering indicator on the basis of the selected aperiodic SRS configuration information, the plurality of aperiodic SRS configuration information including the information about a resource for transmitting the aperiodic SRS corresponding to the aperiodic SRS transmission triggering indicator. In addition, according to the present invention, the terminal can be used for receiving a power offset value for transmitting the aperiodic SRS from the base station and determining a transmission power value for transmitting the aperiodic SRS. | 03-28-2013 |
| 20130083719 | METHOD FOR REPORTING A CHANNEL QUALITY INDICATOR BY A RELAY NODE IN A WIRELESS COMMUNICATION SYSTEM, AND APPARATUS FOR SAME - The present invention relates to a method for reporting a channel quality indicator for a relay node-dedicated physical downlink shared channel (R-PDSCH) from a base station by a relay node in a wireless communication system. More particularly, the method comprises the following steps: receiving one or more reference signals from the base station; calculating a channel quality indicator for the R-PDSCH on the basis of one or more reference signals; and reporting the channel quality indicator to the base station. | 04-04-2013 |
| 20130114539 | METHOD AND APPARATUS FOR RECEIVING DOWNLINK SIGNALS - The present invention relates to a method and apparatus for receiving downlink signals in a wireless communication system. More specifically, the present invention relates to a method for receiving downlink signals in a wireless communication and an apparatus incorporating the same, wherein the method comprises the steps of: receiving a sub frame having two slots; blind decoding a plurality of R-PDCCH (Relay Physical Downlink Control Channel) candidates in order to receive control data from the search space of a first slot; and determining whether the R-PDCCH conveys control data for downlink transmission or uplink transmission when R-PDCCH was detected in the search space, wherein the control data for the downlink transmission and uplink transmission have an equal size of data. | 05-09-2013 |
| 20130155942 | METHOD AND DEVICE FOR USER EQUIPMENT TRANSMITTING ACK/NACK SIGNALS TO RELAY NODE IN A WIRELESS COMMUNICATION SYSTEM - The present invention discloses a method for a user equipment transmitting acknowledgement/negative-ACK (AC/NACK) signals to a relay node in a wireless communication system. More particularly, the present invention comprises the following steps: setting an uplink subframe pattern including uplink blocked subframes and uplink non-blocked subframes, and selecting an ACK/NACK reception factor for each of the uplink subframes; receiving data from the relay node through at least one downlink subframe; and repeatedly transmitting ACK/NACK signals corresponding to the data, based on the uplink subframe pattern and the ACK/NACK reception factor, wherein when the uplink subframe for receiving the ACK/NACK signal is a specific uplink blocked subframe, the ACK/NACK signals are received by the non-blocked subframes allocated to the user equipment, following the specific uplink blocked subframe. | 06-20-2013 |
| 20130163405 | METHOD FOR SELECTING PMI FOR NON-ADAPTIVE HARQ OPERATION IN A MIMO WIRELESS COMMUNICATION SYSTEM - A method for transmitting an uplink signal at a User Equipment (UE) in a wireless communication system includes receiving, from a Base Station (BS), an uplink scheduling grant for multi-antenna transmission; transmitting the uplink signal precoded using precoding information included in the received uplink scheduling grant to the BS; and retransmitting the uplink signal to the BS according to Acknowledgment/Negative Acknowledgment (ACK/NACK) corresponding to the transmitted uplink signal. The retransmitted uplink signal is precoded using precoding information included in a most recent uplink scheduling grant or a predetermined precoding matrix if an uplink scheduling grant for the retransmission is not received from the BS. | 06-27-2013 |
| 20130195006 | METHOD OF TRANSMITTING CONTROL INFORMATION AND DEVICE FOR SAME - The present invention relates to a wireless communication system. In more detail, in relation to an uplink transmission method, the present invention relates to a method which includes: generating a signal for uplink transmission; transmitting the signal by using a subframe #n; if the subframe #n and a subframe #n+1 are subframes for respectively different links, not transmitting the signal in the last symbol of the subframe #n; and if the subframe #n and the subframe #n+1 are subframes for the same link, transmitting the signal by using the last symbol of the subframe #n, and to a device for same. | 08-01-2013 |
| 20130235839 | METHOD AND APPARATUS FOR TRANSCEIVING A DOWNLINK CONTROL CHANNEL IN A WIRELESS COMMUNICATION SYSTEM - The present invention relates to a wireless communication system, and more particularly, to a method and apparatus for transceiving a downlink control channel. According to one embodiment of the present invention, a method in which a receiver receives a downlink control channel from a transmitter in a wireless communication system comprises: a step of assuming an overhead of a transmitted reference signal in a data region of a downlink subframe; and a step of decoding the downlink control channel transmitted by the transmitter in the data region on the basis of the assumption of the overhead of the reference signal, wherein the assumption of the overhead of the reference signal is determined on the basis of at least the number of receiving antennas of the receiver. | 09-12-2013 |
| 20130242855 | METHOD FOR AVOIDING INTER-CELL INTERFERENCE IN WIRELESS ACCESS SYSTEM - According to the disclosure of the present invention, provided is a method for operating a relay node (RN) to avoid an inter-cell interference (ICI) in a wireless access system. The method includes: overhearing the downlink signal transmitted by a plurality of base stations to terminals within the coverage area of each base station in an n | 09-19-2013 |
| 20130250847 | METHOD AND DEVICE FOR A RELAY NODE TO TRANSMIT A SOUNDING REFERENCE SIGNAL TO A BASE STATION IN A WIRELESS COMMUNICATION SYSTEM - The present invention relates to a method for a relay node (RN) to transmit a sounding reference signal (SRS) to a base station in a wireless communication system. The method for SRS transmission includes: receiving the backhaul downlink subframe setting information from the base station; allocating backhaul uplink subframes on the basis of the received backhaul downlink subframe setting information; receiving uplink subframe setting information; receiving uplink subframe setting information for SRS transmission from the base station; receiving an indicator for triggering the SRS transmission from the base station; and, if a first uplink subframe from among the uplink subframes for the SRS transmission is the backhaul uplink subframe, transmitting the SRS from the first uplink subframe to the base station; or, if the first uplink subframe is not the backhaul uplink subframe is not the backhaul uplink subframe, not transmitting the SRS to the base station; or transmitting the SRS from a second uplink subframe, which is backhaul uplink subframe from among the uplink subframes for the SRS transmission and is subsequently the closest to the first uplink subframe, to the base station. | 09-26-2013 |
| 20130258977 | METHOD FOR TRANSMITTING UPLINK SIGNAL AND APPARATUS THEREFOR - The present invention relates to a wireless communication system. Specifically, the present invention relates to a method of transmitting an uplink signal in a state in which a PUSCH sub-frame bundling mode is set, including the steps of: receiving a first PDCCH signal having an uplink grant through a first downlink sub-frame; receiving a second PDCCH signal having an uplink grant through a second downlink sub-frame: and one or more continuous uplink sub-frames of a predetermined size transmitting a PUSCH signal corresponding to the second PDCCH signal when a value corresponding to an interval between the first downlink sub-frame and the second downlink sub-frame is smaller than a bundling size set through a higher layer, wherein the predetermined size is set as the size smaller than the bundling size, and an apparatus therefor. | 10-03-2013 |
| 20130272189 | METHOD FOR TRANSMITTING UPLINK CONTROL INFORMATION IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR - The present invention relates to a method for allocating a resource which enables a relay node to transmit uplink control information to a base station in a wireless communication system. Specifically, the method for allocating the resource include the steps of: generating a control information sequence for a backhaul downlink sub-frame between a relay node and a base station; setting symbols for mapping the control information sequence when a plurality of symbols are punctured at a front end or a rear end of a backhaul uplink sub-frame between the relay node and the base station; and performing the time-first-mapping for the control information sequence with respect to resource elements corresponding to the set symbols in a descending order of sub-carrier indexes. | 10-17-2013 |
| 20130279424 | METHOD FOR A TERMINAL TO TRANSMIT CHANNEL STATE INFORMATION TO A BASE STATION IN A RADIO COMMUNICATION SYSTEM, AND DEVICE FOR SAME - A method for a terminal to allocate a resource for transmitting uplink control information to a serving base station (BS) in a radio communication system includes when a report of at least one periodic RI and a report of at least one aperiodic RI occur in the same subframe, mapping the at least one periodic RI and the at least one aperiodic RI into a physical uplink shared channel of the subframe and transmitting the mapped at least one periodic RI and at least one aperiodic RI to the serving BS. The at least one aperiodic RI may correspond to at least one component carrier wave in each of the serving BS and an adjacent BS for CoMP transmission of the serving BS and the adjacent BS, and the at least one periodic RI may correspond to at least one component carrier wave for non-CoMP transmission in the serving BS. | 10-24-2013 |
| 20130286931 | METHOD AND DEVICE FOR TRANSMITTING AN UPLINK SIGNAL FROM A RELAY NODE TO A BASE STATION IN A WIRELESS COMMUNICATION SYSTEM - The present application discloses a method for transmitting an uplink signal from a relay node to a base station in a wireless communication system. In detail, the method comprises the steps of: setting backhaul uplink subframes on the basis of a plurality of pieces of subframe setting information received from the base station; and transmitting the uplink signal to the base station on the basis of an uplink grant in a particular backhaul uplink subframe among the set backhaul uplink subframes, wherein the uplink grant is received at a backhaul downlink subframe which exists within a preset period of time (T) from the particular backhaul uplink subframe, and the backhaul downlink subframes is not an access downlink subframe. | 10-31-2013 |
| 20130286933 | METHOD AND APPARATUS FOR TRANSMITTING CHANNEL STATUS INFORMATION TO MACRO BASE STATION BY RELAY NODE IN WIRELESS COMMUNICATION SYSTEM TO WHICH CARRIER AGGREGATION IS APPLIED - A method and apparatus for transmitting channel status information (CSI) to a macro eNB (MeNB) by a relay node (RN) in a wireless communication system to which carrier aggregation is applied are disclosed. The method includes receiving a CSI reporting request corresponding to a specific secondary component carrier (CC) from the transmitter through a primary CC, establishing a reference resource for the CSI in association with one or more secondary CCs indicated by the CSI reporting request, and transmitting CSIs of the one or more secondary CCs to the transmitter through the specific secondary CC, using the established reference resource. The reference resource is set to the nearest subframe serving as a valid downlink subframe from a reception time point of the CSI reporting request. | 10-31-2013 |
| 20130294332 | METHOD FOR SETTING SEARCH SPACE FOR RELAY NODE IN WIRELESS COMMUNCATION SYSTEM AND DEVICE THEREFOR - Disclosed in the present invention is a method for a relay node to receive a control signal from a base station in a wireless communication system. More particularly, the present invention comprises the steps of: receiving a downlink signal from the base station; and obtaining control information for the relay node by blind-decoding the downlink signal, wherein a search space for blind decoding is located in the data region of a subframe, and is divided into a search space for a downlink grant and a search space for an uplink grant. When the subframe corresponding to the control information for the relay node is a downlink (DL) standalone, the search area including only the search space for the downlink grant, or the search area for the uplink grant being set as an invalid search space would be desirable. | 11-07-2013 |
| 20130301597 | METHOD FOR TRANSMITTING AND RECEIVING DOWNLINK CONTROL INFORMATION IN WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREFOR - Disclosed is a method for allowing a terminal to receive a downlink signal from a base station in a wireless communication system. More specifically, the method comprises the steps of: receiving a first control channel which indicates the location information of a resource allocated to a second control channel; receiving the second control channel, on the basis of a control format indicator contained in the first control channel; and obtaining a downlink grant and/or an uplink grant contained in the second control channel, wherein the second control channel is allocated with the resource contained in a data region of a specific subframe. | 11-14-2013 |
| 20130308523 | METHOD FOR CONFIGURING A BACKHAUL LINK SUBFRAME IN A WIRELESS COMMUNICATION SYSTEM TO WHICH A CARRIER AGGREGATION SCHEME IS APPLIED AND AN APPARATUS FOR THE SAME - A method for configuring a backhaul link subframe in a wireless communication system to which a carrier aggregation scheme is applied and an apparatus for the same are disclosed. The method comprises determining one of a plurality of subframe configurations as a first subframe configuration for a primary component carrier allocated to the relay node; configuring subframe configuration candidates for one or more secondary component carriers allocated to the relay node on the basis of the determined first subframe configuration; determining a second subframe configuration for each of the one or more secondary component carriers by using the configured subframe configuration candidates; and transmitting and receiving a signal to and from the relay node in accordance with the first subframe configuration and the second subframe configuration. | 11-21-2013 |
| 20130315135 | METHOD AND DEVICE FOR SETTING BACKHAUL LINK SUBFRAME IN WIRELESS COMMUNICATION SYSTEM HAVING CARRIER AGGREGATION TECHNIQUE APPLIED THERETO - Disclosed in the present invention is a method for a base station to set a backhaul link subframe for a relay node in a wireless communication system, to which a carrier aggregation technique is applied. More particularly, the present invention comprises the steps of: determining one of the plurality of subframe settings as a first subframe setting for a main component carrier allocated to the relay node; composing subframe setting candidates for one or more subcomponent carriers allocated to the relay node, one the basis of the determined first subframe setting; and determining a second subframe setting for each of the one or more subcomponent carriers, using the composed subframe setting candidates, wherein a subframe aggregation according to the first subframe setting and subframe aggregations according to each of the subframe setting candidates do not overlap when downlink subframes and uplink subframes of the different component carriers are identical, and a downlink subframe aggregation according to the second subframe setting is included in a downlink subframe aggregation according to the first subframe setting. | 11-28-2013 |
| 20130322323 | METHOD AND DEVICE FOR AVOIDING INTER-CELL INTERFERENCE IN A WIRELESS ACCESS SYSTEM - According to the present invention, a method for a relay node (RN) to reallocate a resource in order to avoid inter-cell interference (ICI) in a wireless access system includes: overhearing a control channel including downlink or uplink resource allocation information transmitted by a plurality of base stations to terminals in the coverage area of each base station; sharing the RN by means of the plurality of base stations; confirming that there is a resource area in which conflicts are occurring by comparing resource areas allocated to terminals in the coverage area of the RN through the control channel; and, if it is determined, on the basis of the confirmation result, that there is a resource area in which conflicts are occurring, reallocating a resource to the resource area in which conflicts are occurring. | 12-05-2013 |
| 20130322324 | METHOD FOR SETTING SEARCH SPACE FOR HANDOVER OF RELAY NODE IN WIRELESS COMMUNICATION SYSTEM, AND DEVICE THEREFOR - Disclosed in the present invention is a method for a relay to execute a random access procedure in a wireless communication system. More particularly, the present invention comprises the steps of: transmitting a random access preamble to a target cell; receiving a downlink signal from the target cell; obtaining a relay node-physical downlink control channel (R-PDCCH) by blind decoding the downlink signal; and receiving a random access response message on the basis of the R-PDCCH, wherein a search space for the blind decoding is located in a data region of a subframe, and information on the search space is delivered from the target cell to a serving cell of the relay node, and then signaled to the relay node. | 12-05-2013 |
| 20130329686 | METHOD AND DEVICE FOR TRANSMITTING CONTROL INFORMATION IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a wireless communication system. More specifically, the present invention relates to a method and a device therefor, wherein a method for receiving a downlink control channel in a communication device having a plurality of cells in a wireless communication system comprises the steps of: receiving a subframe containing a plurality of search space resources which are preset to transmit a plurality of downlink control channel candidates, wherein each search space resource corresponds to each cell; and monitoring said plurality of the control channel candidates from at least a portion of said plurality of the search space resources, for said downlink control channel, wherein among said plurality of the cells, if there are one or more specific cells in which downlink transmission is limited at said subframe, search space resources corresponding to said one or more specific cells are used to transmit downlink control channel candidates or downlink shared channels of other cells. | 12-12-2013 |
| 20130336198 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING A SIGNAL THROUGH A RELAY NODE IN A WIRELESS COMMUNICATION SYSTEM IN WHICH A CARRIER AGGREGATION METHOD IS APPLIED - The present invention relates to a method for transmitting and receiving a signal, using a macro base station, through a relay node in a wireless communication system in which a carrier aggregation method is applied. Specifically, the method comprises the steps of: receiving a downlink control channel in a first subframe of a main component carrier; and receiving a data channel on the first subframe and a second subframe after the first subframe, based on control information included in the downlink control channel, wherein the data channel is received through only one or through a plurality of sub-component carriers in the second subframe, and the control information includes a carrier identifier for identifying component carriers and/or a subframe identifier for identifying subframes. | 12-19-2013 |
| 20130336279 | METHOD FOR TRANSMITTING AND RECEIVING DOWNLINK CONTROL INFORMATION IN A WIRELESS COMMUNICATION SYSTEM AND APPARATUS FOR THE SAME - A method for receiving a downlink signal in a user equipment of a wireless communication system from a base station comprises the steps of receiving control information from either a downlink control channel or a legacy downlink control channel in accordance with a previously set condition; and receiving a downlink shared channel or a legacy downlink shared channel on the basis of the control information, wherein the downlink control channel is received through a data region of a subframe, and the legacy downlink control channel is received through a control region of the subframe, the control information of the downlink control channel includes allocation information of the downlink shared channel, and the control information of the legacy downlink control channel includes allocation information of the downlink shared channel or the legacy downlink shared channel. | 12-19-2013 |
| 20130336299 | RETRANSMISSION METHOD FOR DYNAMIC SUBFRAME SETTING IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS FOR SAME - Disclosed is a method for allowing a terminal to transmit and receive signals to and/from a base station in a wireless communication system using a time division multiplexing method. Specifically, the method comprises the steps of: receiving a request signal for resetting into a second uplink/downlink setting while transmitting and receiving a signal according to a first uplink/downlink setting; terminating an uplink retransmission process associated with a specific uplink subframe when the use of the specific uplink subframe is changed into a downlink subframe according to the second uplink/downlink setting; and applying the second uplink/downlink setting at a specific time point to transmit and receive signals. | 12-19-2013 |
| 20130336302 | DYNAMIC SUBFRAME SETTING METHOD FOR WIRELESS COMMUNICATION SYSTEM, AND DEVICE FOR SAME - The present application discloses a method for a terminal to transmit/receive signals to/from a base station in a wireless communication system. Specifically, the method comprises a first step in which an uplink signal is transmitted from a first subframe and a downlink signal is received from a second subframe, and a second step in which a downlink signal is received from the first subframe and the second subframe if the first subframe has changed so as to be used for the reception of a downlink signal; and the method is characterized in that in the first step a protection space is located between the first subframe and the second subframe, in the second step the protection space is located at the front end of the first subframe, and the first subframe and the second subframes are consecutive. | 12-19-2013 |
| 20130343322 | METHOD FOR TRANSMITTING UPLINK CONTROL INFORMATION IN A WIRELESS COMMUNICATION SYSTEM AND DEVICE FOR SAME - The present invention relates to a method for a receiving terminal to transmit uplink control information to a transmitting terminal in a wireless communication system. In more detail, the method for transmitting the uplink control information includes: mapping the uplink control information into at least one available symbol included in each of a first slot and a second slot of a specific subframe; applying a first orthogonal sequence corresponding to the first slot to the uplink control information mapped into the first slot and a second orthogonal sequence corresponding to the second slot to the uplink control information mapped into the second slot; and transmitting the uplink control information having the orthogonal sequence applied to the transmitting terminal. The first orthogonal sequence corresponds to the number of available symbols in the first slot and the second orthogonal sequence corresponds to the number of available symbols in the second slot. | 12-26-2013 |
| 20130343340 | METHOD FOR RECEIVING DOWNLINK SIGNAL AND METHOD FOR TRANSMITTING SAME, AND DEVICE FOR RECEIVING SAME AND DEVICE FOR TRANSMITTING SAME - The present invention relates to a method for a transmission device to transmit data and a reference signal for demodulation for the data, to a reception device. The transmission device of the present invention appropriately configures the reference signal for demodulation of the data being transmitted to the reception device by the transmission device, and transmits the reference signal to the reception device with the data. According to embodiments of the present invention, the demodulation performance for the data transmitted from the transmission device to the reception device is enhanced. | 12-26-2013 |
| 20140003250 | METHOD FOR COMMUNICATION CONSIDERING INTERFERENCE BETWEEN CELLS IN A WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREFOR | 01-02-2014 |
| 20140003327 | METHOD AND APPARATUS FOR HANDING OVER MOBILE CELL | 01-02-2014 |
| 20140003387 | METHOD AND DEVICE FOR TERMINAL TO TRANSMIT/RECEIVE SIGNAL IN WIRELESS COMMUNICATION SYSTEM HAVING CARRIER AGGREGATION TECHNIQUE APPLIED THERETO | 01-02-2014 |
| 20140016534 | METHOD AND DEVICE FOR RANDCOM ACCESS IN MOBILE COMMUNICATION SYSTEM - The present invention relates to a method for a terminal to execute a random access in a mobile communication system, and comprises the steps of: transmitting a random access preamble using a resource determined according to a random access setting for the terminal; and receiving a random access response including uplink approval information from a base station as a response to the preamble transmission, wherein the random access setting is determined by a group corresponding to the terminal from a first random access setting for a first terminal group or a second random access setting for a second terminal group, and a resource reserved for the second terminal group according to the second random access setting is used for transmission of the random access preamble or transmission of uplink data. | 01-16-2014 |
| 20140016541 | BACKHAUL LINK SUBFRAME STRUCTURE IN MOBILE COMMUNICATION SYSTEM AND METHOD FOR TRANSMITTING INFORMATION THEREOF - The present invention relates to a method for a first node to transmit a signal to a second node in a mobile communication system, and comprises the steps of: determining a first slot setting and a second slot setting according to propagation delay value between the first node and the second node; and transmitting the signal through a subframe having a structure determined by the first slot setting and the second slot setting, wherein the first slot setting and the second slot setting each includes a initiation symbol and a termination symbol determined in consideration of the propagation delay value. | 01-16-2014 |
| 20140016591 | METHOD AND APPARATUS FOR CONTROLLING INTER-CELL COLLISION IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a wireless communication system, and more specifically, a method and an apparatus for controlling an inter-cell collision are disclosed. A method for transmitting collision information from a transmission/reception apparatus, which is connected to first and second base stations, according to one embodiment of the present invention, comprises the following steps: obtaining a first scheduling information, generated by the first base station, with regard to a first user equipment, and a second scheduling information, generated by the second base station, with regard to a second user equipment; generating the collision information based on the first scheduling information and the second scheduling information which are obtained; and transferring the collision information to the first and second base stations. | 01-16-2014 |
| 20140016596 | METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING DOWNLINK CONTROL CHANNEL IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a wireless communication system, and more particularly, discloses a method and a downlink reception apparatus, in which at least one cell is set, for transmitting and receiving a downlink control channel. According to one embodiment of the present invention, the method for receiving the physical downlink control channel (PDCCH) by the downlink reception apparatus in which at least one cell is set, comprises: a step of receiving a virtual resource block (VRB) set setting information for a potential PDCCH transmission; and a step of monitoring the VRB set and demodulating the PDCCH, wherein information on the VRB set, with regard to a cell for which PDCCH non-crossed interleaving is set or to a cell for which the PDCCH demodulation is set, based on the downlink reception apparatus-specific reference signal, can be commonly defined for a first slot and a second slot in a downlink subframe. | 01-16-2014 |
| 20140029559 | METHOD FOR TERMINAL TO RECEIVE DOWNLINK SIGNAL FROM BASE STATION IN WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREFOR - Disclosed in the present invention is a method for a terminal to receive downlink data from a base station in a wireless communication system. More particularly, the present invention comprises the steps of: receiving downlink control information from the base station in a first subframe; confirming a specific identifier included in the downlink control information; and when the specific identifier is more than or equal to a predetermined value, receiving downlink data in a second subframe, on the basis of the downlink control information. | 01-30-2014 |
| 20140029560 | METHOD AND APPARATUS FOR TRANSMISSION OF SIGNAL FROM DEVICE TO DEVICE IN A WIRELESS COMMUNICATION SYSTEM - One embodiment of the present invention relates to a method for transmitting signals from a first terminal to a second terminal in a wireless communication system, which comprises the steps of: requesting a base station for connection to a second terminal; receiving control information concerning the request from the base station; transmitting a preamble to the second terminal using the control information; and receiving a response concerning the transmission of the preamble from the second terminal, wherein the preamble is transmitted to obtain a synchronized uplink for the second terminal. | 01-30-2014 |
| 20140029561 | METHOD AND DEVICE FOR TRANSMITTING A SIGNAL IN A MOBILE COMMUNICATION SYSTEM - An embodiment of the present invention relates to a method of a base station to transmit a signal in a wireless communication system. The method includes: transmitting Physical Downlink Control Channel (PDCCH), which includes scheduling information on a resource area of an unlicensed band over a licensed band; and transmitting a sequence, which includes the identifier of a terminal having the resource area allocated, over the unlicensed band. The timing at which the sequence is transmitted may be set prior to a resource area scheduled by the PDCCH. | 01-30-2014 |
| 20140029573 | METHOD FOR TRANSMITTING CONTROL INFORMATION IN WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREFOR - The present invention relates to a wireless communication system, more specifically to a method for transmitting control information and a device therefor. The wireless communication system can support carrier aggregation. The present invention relates to a method for transmitting information from a terminal to a base station in a wireless communication system, which includes a step for receiving first information for cross carrier scheduling through at least one primary cell among serving cells formed in a terminal from the base station, and a step for transmitting second information about a secondary cell related to at least one first information among serving cells to the base station through an uplink resource of the primary cell. | 01-30-2014 |
| 20140036740 | METHOD AND DEVICE FOR SETTING BACKHAUL LINK SUBFRAME IN WIRELESS COMMUNICATION SYSTEM HAVING CARRIER AGGREGATION TECHNIQUE APPLIED THERETO - Disclosed in the present invention is a method for a base station to set a backhaul link subframe for a relay node in a wireless communication system, to which a carrier aggregation technique is applied. More particularly, the present invention comprises the steps of: determining one of the plurality of subframe settings as a first subframe setting for a main component carrier allocated to the relay node; composing subframe setting candidates for one or more subcomponent carriers allocated to the relay node, one the basis of the determined first subframe setting; and determining a second subframe setting for each of the one or more subcomponent carriers, using the composed subframe setting candidates, wherein a subframe aggregation according to the first subframe setting and subframe aggregations according to each of the subframe setting candidates do not overlap when downlink subframes and uplink subframes of the different component carriers are identical, and a downlink subframe aggregation according to the second subframe setting is included in a downlink subframe aggregation according to the first subframe setting. | 02-06-2014 |
| 20140036851 | METHOD FOR SENDING AND RECEIVING SIGNALS FOR ALLEVIATING INTER-CELL INTERFERENCE IN A WIRELESS COMMUNICATION SYSTEM AND A DEVICE THEREFOR - Disclosed is a method whereby a terminal sends and receives signals between itself and a serving cell in a wireless communication system. More specifically, the invention comprises the steps of: receiving information relating to a default bandwidth and an allocation bandwidth from the serving cell; and, if the terminal is positioned at a cell edge, either sending an uplink signal to the serving cell or receiving a downlink signal from the serving cell on the basis of the allocation bandwidth, and, here, the allocation bandwidth is either smaller than or the same as the default bandwidth. | 02-06-2014 |
| 20140036853 | SIGNAL TRANSMISSION METHOD AND DEVICE IN A WIRELESS COMMUNICATION SYSTEM - One embodiment of the present invention relates to a method for transmitting signals over an unlicensed band phase of a base station in a wireless communication system, which comprises the steps of: transmitting a physical down-link control channel (PDCCH) from a licensed band; and transmitting a physical down-link shared channel (PDSCH) over a time interval of the unlicensed band corresponding to the sub-frame transmitted by the PDCCH, wherein a reservation signal can be transmitted to a pre-set point from the point the unlicensed band is available to the base station, if the base station performs wave transmission sensing for the unlicensed band for transmission of the PDSCH, and the pre-set point is earlier than the point at which the unlicensed becomes available from the transmission sensing results. | 02-06-2014 |
| 20140036889 | METHOD AND DEVICE FOR TRANSMITTING RECEPTION ACKNOWLEDGEMENT INFORMATION IN A MOBILE COMMUNICATION SYSTEM - The present invention and embodiments thereof relate to a method for transmitting a signal of a base station in a wireless communication system using a carrier merge. The method includes transmitting to a terminal a Physical Downlink Shared CHannel (PDSCH) on a downlink secondary cell and a Physical Downlink Shared CHannel (PDSCH) indicating the PDSCH on a downlink primary cell; and receiving a reception acknowledgement response on the PDSCH, which is transmitted from the terminal to an uplink primary cell. The PDSCH is transmitted when the downlink secondary cell becomes available, and the transmission timing of the reception acknowledgement response is determined by one of the PDSCH transmission timing or the PDCCH transmission timing. | 02-06-2014 |
| 20140044084 | METHOD FOR ENABLING TERMINAL TO TRANSMIT ACK/NACK RESPONSE IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR - The present application relates to a method for enabling a terminal to transmit an uplink ACK/NACK (Acknowledgement/negative ACK) response to a base station in a time-division multiplexing wireless communication system. Specifically, the method includes the steps of: receiving a setting for an uplink-downlink subframe from the base station; receiving downlink control information and downlink data information scheduled through the downlink control information, from the base station based on the setting for the uplink-downlink subframe; and transmitting an ACK/NACK response for the downlink data information to the base station, wherein the subframe to which the ACK/NACK response is transmitted is determined according to whether an ending symbol of the downlink control information is after a particular symbol of the sub-frame for receiving the downlink control information. | 02-13-2014 |
| 20140050191 | METHOD FOR RECEIVING DOWNLINK SIGNAL, AND USER DEVICE, AND METHOD FOR TRANSMITTING DOWNLINK SIGNAL, AND BASE STATION - The present invention provides a method and a device for transmitting/receiving a control channel in a downlink subframe, which divides into a control area and a data area. The present invention enables the downlink control channel transmitted from the data area of a specific carrier wave to be configured to carry scheduling information on another carrier wave. | 02-20-2014 |
| 20140050192 | METHOD FOR RECEIVING DOWNLINK SIGNAL, AND USER DEVICE, AND METHOD FOR TRANSMITTING DOWNLINK SIGNAL, AND BASE STATION - The present invention provides a method and a device for transmitting/receiving a control channel in a downlink subframe, which divides into a control area and a data area. In the present invention, a first downlink control channel is transmitted in the control area of the downlink subframe, and/or a second downlink control channel is transmitted in the data area of the downlink subframe. The first downlink control channel carries downlink control information having a predetermined format, and the second downlink control channel carries downlink control information having a format corresponding to a transmission mode of a user device. | 02-20-2014 |
| 20140064204 | METHOD FOR RECEIVING DOWNLINK SIGNAL AND METHOD FOR TRANSMITTING SAME, USER EQUIPMENT, AND BASE STATION - Presented is a plan for utilizing resources not being used in a subframe consisting of relay transmission, and being thrown away thereafter. The present invention enables efficient utilization of the resources by reducing the waste of the resources in a wireless communication system supporting a relay. | 03-06-2014 |
| 20140064235 | METHOD FOR TRANSMITTING/RECEIVING DOWNLINK CONTROL INFORMATION IN WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREFOR - Disclosed in the present invention is a method for a terminal to receive downlink control information from a base station in a wireless communication system. More particularly, the present invention comprises the steps of receiving control information in a first area of a specific subframe on the basis of a first reference signal, receiving control information in a second area of the specific subframe on the basis of a second reference signal, wherein the first reference signal and the second reference signal are applied to a same precoding. | 03-06-2014 |
| 20140064237 | METHOD AND DEVICE FOR TERMINAL TO EXECUTE UPLINK HARQ OPERATION IN WIRELESS COMMUNICATION SYSTEM - Disclosed in the present invention is a method for a terminal to receive an acknowledgement/negative-ACK (ACK/NACK) from a base station in a wireless communication system. More specifically, the method comprises the steps of receiving from the base station, through a first carrier wave, scheduling information on uplink data to be transmitted through a second carrier wave, transmitting the uplink data to the base station through the second carrier wave, and receiving an ACK/NACK signal for the uplink data from the base station, in one specific subframe from the first carrier wave or the second carrier wave. | 03-06-2014 |
| 20140071929 | METHOD FOR TRANSMITTING/RECEIVING DOWNLINK CONTROL INFORMATION IN WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREFOR - Disclosed in the present invention is a method for a terminal to receive a downlink signal from a base station in a wireless communication system. More particularly, the present invention comprises the steps of: receiving downlink control information from the base station in a data region of a first subframe; and receiving downlink data in a data region of a second subframe, on the basis of the downlink control information, wherein the second subframe is a subframe available after a preset number of subframes from the first subframe. | 03-13-2014 |
| 20140071931 | METHOD AND DEVICE FOR TRANSMITTING CONTROL INFORMATION IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a wireless communication system and, more particularly, to a method and a device for transmitting control information. The wireless communication system supports carrier aggregation (CA). One aspect of the present invention relates to a method for a base station to receive information from a terminal in a wireless communication system, and comprises the steps of: dividing the entire bandwidth used by one or more serving cells configured in the base station and the terminal, into predetermined frequency units; carrying out a carrier sensing operation for each of the plurality of bandwidths divided in the predetermined frequency units; and when the result of the carrier sensing operation for a first bandwidth from the plurality of divided bandwidths is maintained idle for a predetermined time or longer, transmitting first information to the terminal using the first bandwidth; and receiving from the terminal, second information on a second cell (SCell) related to the first information from the one or more serving cells. | 03-13-2014 |
| 20140079012 | METHOD FOR TRANSMITTING SIGNAL USING PLURALITY OF ANTENNA PORTS AND TRANSMISSION END APPARATUS FOR SAME - The present invention relates to wireless communication, and more particularly, to a method for transmitting a signal using a plurality of antenna ports and a transmission end apparatus for same. According to a method for a transmission end transmitting the signal in a multi-input multi-output (MIMO) wireless communication system of the present invention, a step of transmitting instruction information on a first channel transmission method to a reception end, and a step of transmitting the first channel to the reception end using a resource region are comprised, wherein the first channel is either an advanced-physical downlink control channel (A-PDCCH) or a relay-physical downlink control channel (R-PDCCH), the first channel is not transmitted when at least a portion of the resource region overlaps with a resource region used for transmitting a second channel, and wherein the second channel can be periodically transmitted using a predetermined portion of the resource region. | 03-20-2014 |
| 20140079015 | MULTIPLEXING METHOD FOR SIGNALS RELATED TO A PLURALITY OF TERMINALS IN A WIRELESS COMMUNICATION SYSTEM APPLYING CARRIER AGGREGATION TECHNIQUES AND APPARATUS THEREFOR - The present description discloses a method for transmitting an uplink signal through a non-licensed band from a terminal in a wireless communication system by applying carrier aggregation techniques. More specifically, the method is characterized by comprising the steps of: receiving an uplink scheduling grant from a base station; determining the availability of a non-licensed band; transmitting a signal for reserving resources if a non-licensed band is available; and transmitting an uplink signal to the base station via the non-licensed band on the basis of the uplink scheduling grant. | 03-20-2014 |
| 20140079018 | METHOD AND DEVICE FOR TRANSMITTING DATA IN A MULTI ANTENNA WIRELESS COMMUNICATION SYSTEM - The present invention relates to a method for a transmitter to transmitter data to a receiver in a multi wireless communication system. In more detail, the method include: mapping a transmission resource, which is allocated for the data, into the data the in order of a space domain, a frequency domain, and a time domain; and transmitting the data to the receiver by using the mapped transmission resource. The transmission resource includes a plurality of space resources. Each of the plurality of space resources includes a plurality of resource allocation units, which are defined by a specific time resource and a specific frequency resource. The mapping of the transmission resource includes mapping the plurality of complex symbols into the remaining space resources in the order of a frequency resource and a time resource if there is no resource allocation unit allocated to a specific space resource. | 03-20-2014 |
| 20140080477 | METHOD FOR TERMINAL TRANSMITTING/RECEIVING SIGNAL IN BASE STATION COORDINATION WIRELESS COMMUNICATION SYSTEM, AND APPARATUS FOR SAME - In the present invention, a method for a terminal transmitting/receiving a signal with a plurality of transmission points in a wireless communication system is disclosed. More particularly, the method comprises the steps of: receiving carrier aggregation (CA) setting information and a signal related to a fake-carrier aggregation (CA) for applying the CA settings from a main transmission point from the transmission points; and transmitting the signal through each of the plurality of transmission points and a single carrier, wherein the information included in the fake-CA signal includes information related to whether to activate an uplink and a downlink of each of the plurality of transmission points. | 03-20-2014 |
| 20140092792 | METHOD FOR TRANSMITTING CONTROL INFORMATION IN WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREFOR - The present invention relates to a wireless communication system. In particular, the present invention relates to a method for receiving a downlink control channel in a wireless communication system, and a device therefore, more particularly, to the method and a device therefore, the method comprising the steps of: receiving an upper layer signal including a plurality of frequency resource sets; receiving a subframe carrying a plurality of downlink control channel candidates; and monitoring the plurality of control channel candidates in one specific frequency resource set from the plurality of frequency resource sets, for the downlink control channel, wherein the one specific frequency resource set is determined according to the type or the characteristic of the subframe. | 04-03-2014 |
| 20140092921 | METHOD FOR TERMINAL TO TRANSMIT/RECEIVE SIGNAL TO/FROM BASE STATION IN WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREFOR - The present invention relates to a method for a terminal to transmit/receive a signal to/from a base station in a specific subframe in a wireless communication system. More particularly, the present invention comprises the steps of: receiving setting information of the specific subframe from the base station; and receiving a downlink signal from the base station or transmitting an uplink signal to the base station, in the specific subframe, wherein the specific subframe has a first segment for receiving the downlink signal in the front end thereof, a second segment for transmitting the uplink signal in the rear end thereof, and when the specific subframe is set for the purpose of downlink signal reception, the setting information defines the size of the first segment of the specific subframe, and when the specific subframe is set for the purpose of uplink signal transmission, the setting information defines the size of the second segment of the specific subframe. | 04-03-2014 |
| 20140098779 | METHOD FOR A TERMINAL TO RECEIVE A DOWNLINK SIGNAL IN A COOPERATIVE BASE STATION WIRELESS COMMUNICATION SYSTEM AND DEVICE FOR SAME - The present invention relates to a method for a terminal to receive a downlink signal from a plurality of base stations in a wireless communication system. More particularly, the method comprises the steps of: receiving downlink scheduling information from a first base station; and using the downlink scheduling information in order to receive downlink data signals from the first base station and at least one second base station. the downlink data signals received from each of the first base station and the at least one second base station are received through the same frequency band. | 04-10-2014 |
| 20140098780 | METHOD FOR TRANSMITTING UPLINK CONTROL INFORMATION AND USER EQUIPMENT, AND METHOD FOR RECEIVING UPLINK CONTROL INFORMATION AND BASE STATION - The present invention provides a method and apparatus for uplink transmission/reception of at least one slot in a sub-frame comprising two slots. A base station transmits information which controls the slot performing the uplink transmission among the two slots, to user equipment, and the user equipment performs uplink transmission from the slot directed by the information. When the user equipment transmits ACK/NACK information, the ACK/NACK information is transmitted from the first slot of the user equipment if the CCE associated with the first slot is the CCE included in the PDCCH of the user equipment, and the ACK/NACK information is transmitted from the second slot if the CCE is the CCE associated with the second slot. | 04-10-2014 |
| 20140105155 | METHOD FOR TRANSMITTING UPLINK CONTROL INFORMATION, USER EQUIPMENT, METHOD FOR RECEIVING UPLINK CONTROL INFORMATION, AND BASE STATION - In the present invention, a user equipment-specific offset information for indicating first physical uplink control channel (PUCCH) resources, which can be used for transmitting ACK/NACK related to a physical downlink control channel (PDCCH) that is transmitted from a data region of a downlink subframe, is provided to a user equipment by means of a base station. The user equipment, which receives the PDCCH from the data region of the downlink subframe, decides the PUCCH resource, based on offset information and an index of the resource that is included in the PDCCH, and transmits ACK/NACK information that corresponds to the PDCCH to the base station using the PUCCH resource. | 04-17-2014 |
| 20140112289 | METHOD AND APPARATUS FOR TRANSMITTING A SIGNAL IN A WIRELESS COMMUNICATION SYSTEM - One embodiment of the present invention relates to a method for transmitting a signal to an unlicensed band of a base station in a wireless communication system. The method comprises the steps of: transmitting at least one of a preamble and a reservation signal, if it is determined through carrier sensing that the unlicensed band is available; and transmitting a PDSCH on the unlicensed band immediately after the transmission of at least one of the preamble and the reservation signal. the preamble enables a terminal to acquire reception synchronization for at least one of the reservation signal and the PDSCH. | 04-24-2014 |
| 20140112312 | METHOD FOR TRANSMITTING SIGNAL USING PLURALITY OF CODEWORDS IN WIRELESS COMMUNICATION SYSTEM AND TRANSMISSION END FOR SAME - A method for transmitting a signal using a plurality of codewords in a wireless communication system and a transmission end for same are disclosed. The method for the transmission end transmitting the signal using the plurality of codewords, according to the present invention, comprises the following steps: mapping a first codeword on at least one layer from a first layer group and mapping a second codeword on at least one layer from a second layer group, when transmitting a rank of at least five; and transmitting the codewords which are mapped on the first and second layer groups, wherein each of the first layer group and the second layer group can include four layers. | 04-24-2014 |
| 20140119275 | METHOD FOR TRANSMITTING SIGNAL USING PLURALITY OF ANTENNA PORTS AND TRANSMISSION END APPARATUS FOR SAME - A method for transmitting a signal by using a plurality of antenna ports and a transmission end apparatus for same are disclosed. A method for transmitting the signal using the plurality of antenna ports, according to the present invention, comprises the following steps: transmitting a control channel to a reception end through a first antenna using a first resource domain; and transmitting a data channel to the reception end through the plurality of antenna ports including first antenna port using a second resource domain, wherein the second resource domain and the first resource domain have identical time domains but different frequency domains, and wherein from the time and frequency domains that belong to the first resource domain, the data channel is not transmitted through at least one antenna port from the antenna ports excluding the first antenna port. | 05-01-2014 |
| 20140133425 | METHOD AND APPARATUS FOR SIGNAL TRANSCEIVING IN WIRELESS COMMUNICATION SYSTEM - An embodiment of the present invention is a method for receiving a signal from a plurality of transmission points in a wireless communication system, the method for receiving a signal comprising the steps of: blind decoding a first search space of a subframe received from a first transmission point; and blind decoding a second search space of a subframe received from a second transmission point, wherein the combination of the first search space and the second search space is equivalent to a search space that results when a signal is received from only one transmission point from among the plurality of transmission points. | 05-15-2014 |
| 20140133427 | METHOD FOR TRANSMITTING OR RECEIVING PDCCH AND USER EQUIPMENT OR BASE STATION FOR THE METHOD - A method for receiving a physical downlink control channel (PDCCH) at a downlink subframe through a user equipment (UE) in a wireless communication system comprises the step of detecting the PDCCH by performing blind decoding for a search space including a plurality of PDCCH candidates included in the downlink subframe, wherein the blind decoding is performed in accordance with order of priority given to each of a plurality of sub-search spaces constituting the search space. | 05-15-2014 |
| 20140140315 | METHOD FOR ADJUSTING UPLINK TRANSMISSION TIMING IN BASE STATION COOPERATIVE WIRELESS COMMUNICATION SYSTEM AND APPARATUS FOR SAME - In the present invention, a method for transmitting an uplink signal to a plurality of base stations at a user equipment in a wireless communication system is disclosed. More particularly, the method comprises the steps of receiving, from a serving base station, uplink timing information corresponding to each of the plurality of base stations; and transmitting the uplink signal to each of the plurality of base stations in a unit of subframe according to the uplink timing information, wherein, if a transmission timing of a first subframe to a first base station of the plurality of base stations is overlapped with a transmission timing of a second subframe to a second base station that follows the first subframe, at least one symbol of the first subframe overlapping with the second subframe is not transmitted. | 05-22-2014 |
| 20140146768 | METHOD AND APPARATUS FOR TRANSMITTING CONTROL INFORMATION IN WIRELESS COMMUNICATION SYSTEM - The present invention pertains to a wireless communication system, and more particularly, to a method of receiving a downlink (DL) control channel in a wireless communication system and an apparatus therefor, and the method comprises the following steps: receiving a radio resource control (RRC) message including resource block (RB) allocation information; receiving a subframe having a plurality of physical RBs; and monitoring a plurality of downlink control channel candidates in a physical RB set corresponding to the RB allocation information from the plurality of physical RBs to detect a downlink control channel allocated to a communication device, wherein the plurality of downlink control channel candidates do not continuously exist in a virtual RB set corresponding to the physical RB set. | 05-29-2014 |
| 20140161085 | METHOD FOR TRANSMITTING AND RECEIVING RESOURCE ALLOCATION INFORMATION IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR - Disclosed are a method for transmitting and receiving resource allocation information in a wireless communication system and an apparatus therefor. The method for a terminal to receive resource allocation information in a wireless communication system comprises the steps of: receiving, from a base station, an enhanced-physical downlink control channel (E-PDCCH) comprising a downlink (DL) grant from a particular resource domain; decoding a resource allocation (RA) field, which is in DCI format, in the received E-PDCCH; and determining, on the basis of the decoded RA field, whether a physical downlink shared channel (PDSCH) is transmitted from the domains in the particular resource domain from which the DL grant domain is excluded, or, from the domains in the particular resource domain in which an UL grant domain exists and from which the DL grant domain and the UL grant domain are excluded. | 06-12-2014 |
| 20140161090 | METHOD OF OPERATING AN HARQ BUFFER FOR A DYNAMIC SUB-FRAME CHANGE AND AN APPARATUS FOR SAME - The present invention relates to a method of supporting a Hybrid Automatic Repeat and request (HARQ) scheme of a reception end for supporting a dynamic resource change in a wireless communication system. In particular, the method includes the steps of receiving a change message for changing a currently applied first subframe setting to a second subframe setting from a transmission end, and transmitting and receiving a signal to and from the transmission end according to the second subframe setting, wherein a plurality of subframe settings including the first and second subframe settings are divided into one or more groups, the first and second subframe settings belongs to an identical group, and the HARQ scheme is applied according to the group-specific maximum number of HARQ processes and a soft buffer size for each HARQ process when the subframe setting is changed according to the change message. | 06-12-2014 |
| 20140161092 | METHOD FOR BASE STATION TRANSMITTING DOWNLINK CONTROL CHANNEL IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS FOR SAME - In the present invention, a method for a base station transmitting a downlink channel is disclosed. More particularly, the method comprises the steps of: dividing each of one or more resources blocks, which are allocated for the downlink control channel, into a predetermined number of subsets; deciding the number of subsets that comprise a resource allocation basic unit for the downlink control channel, based on a start symbol and/or an end symbol of the downlink control channel; mapping a transmission resource on the downlink control channel as the resource allocation basic unit comprising the predetermined number of subsets; and transmitting the downlink control channel by using the transmission resource that is mapped. | 06-12-2014 |
| 20140169316 | METHOD AND APPARATUS FOR SIGNAL TRANSCEIVING IN WIRELESS COMMUNICATION SYSTEM - An embodiment of the present invention is a method for a terminal to transmit a signal in a wireless communication system, the method for signal transmission comprising the steps of: determining a resource index for the transmission of a physical uplink control channel (PUCCH); and transmitting the PUCCH to any one transmission point among a plurality of transmission points, wherein the transmission point which is to receive the PUCCH is determined on the basis of where the resource index belongs among n number of parts of uplink bandwidths. | 06-19-2014 |
| 20140169345 | METHOD AND APPARATUS FOR ACQUIRING SYNCHRONIZATION IN RADIO COMMUNICATION SYSTEM - A method for acquiring synchronization by a user equipment (UE) in a radio communication system is disclosed. The method includes receiving a synchronization signal from a first transmission point, and acquiring synchronization to a second transmission point using the synchronization signal and information including a subframe offset received from the first transmission point, wherein the subframe offset is a subframe difference value between the first transmission point and the second transmission point. | 06-19-2014 |
| 20140192672 | METHOD AND APPARATUS FOR REPORTING A MEASUREMENT IN A WIRELESS COMMUNICATION SYSTEM - The present invention relates to a method for reporting a measurement by a terminal, comprising the steps of: measuring the magnitude of a signal from a first transmission point; and measuring the magnitude of a signal from a second transmission point. The measurements of the magnitudes of the signals from each transmission point are performed using a channel state information reference signal. | 07-10-2014 |
| 20140211730 | METHOD FOR BASE STATION TO MULITIPLEX DOWNLINK CONTROL CHANNEL IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR - Disclosed is a method for a base station to transmit a downlink control channel in a wireless communication system. Specifically, the method comprises the steps of: separating each resource block, of which there are at least one, into a preconfigured number of subsets; structuring basic resource allocation units for an downlink control channel as one of the subsets comprised in one or more resource blocks; configuring the basic resource allocation units, the number of which correspond to the aggregation level of the downlink control channel, as transmission resources; and using the transmission resource to transmit the downlink control channel to a terminal. | 07-31-2014 |
| 20140211739 | METHOD AND USER EQUIPMENT FOR RECEIVING DOWNLINK SIGNALS, AND METHOD AND BASE STATION FOR TRANSMITTING DOWNLINK SIGNALS - The present invention relates to methods and devices for transmitting/receiving downlink signals in a wireless communication system. The methods and devices according to the present invention receive a downlink grant for user equipment (referred to hereinafter as a first downlink grant) at a first of a plurality of resource units in a given resource region from a base station; and detect an uplink grant at a second of the plurality of resource units if resource assignment information in the first downlink grant has a first value, and detect downlink data at the resource unit if the resource assignment information has a second value. | 07-31-2014 |
| 20140213315 | METHOD FOR TRANSMITTING SOUNDING REFERENCE SIGNAL IN BASE STATION COOPERATIVE WIRELESS COMMUNICATION SYSTEM AND APPARATUS FOR SAME - The present invention relates to a method for a terminal transmitting a sounding reference signal in a wireless communication system. More particularly, the method comprises the steps of: receiving from a network at least one first transmission power offset value of the sounding reference signal for a first cell; deciding transmission power of the sounding reference signal for the first cell, based on transmission power for an uplink data channel for a second cell and the at least one transmission power offset value; and transmitting the sounding reference signal for the first cell to the first cell. | 07-31-2014 |
| 20140219202 | METHOD FOR TRANSMITTING UPLINK CONTROL INFORMATION, USER EQUIPMENT, METHOD FOR RECEIVING UPLINK CONTROL INFORMATION, AND BASE STATION - In the present invention, a physical uplink control channel (PUCCH) resource, which is used for transmitting acknowledgement/negative ACK (ACK/NACK) information related to downlink control information, is determined on the basis of n | 08-07-2014 |
| 20140241286 | METHOD FOR SELECTING PMI FOR NON-ADAPTIVE HARQ OPERATION IN A MIMO WIRELESS COMMUNICATION SYSTEM - A method for transmitting an uplink signal at a User Equipment (UE) in a wireless communication system includes receiving, from a Base Station (BS), an uplink scheduling grant for multi-antenna transmission; transmitting the uplink signal precoded using precoding information included in the received uplink scheduling grant to the BS; and retransmitting the uplink signal to the BS according to Acknowledgment/Negative Acknowledgment (ACK/NACK) corresponding to the transmitted uplink signal. The retransmitted uplink signal is precoded using precoding information included in a most recent uplink scheduling grant or a predetermined precoding matrix if an uplink scheduling grant for the retransmission is not received from the BS. | 08-28-2014 |
| 20140242995 | METHOD IN WHICH A TERMINAL TRANSCEIVES A SIGNAL IN A WIRELESS COMMUNICATION SYSTEM AND APPARATUS FOR SAME - The present application relates to a method in which a terminal transceives a signal in a wireless communication system. More particularly, the method comprises: a step of transmitting a measurement report on one or more neighboring base stations to a serving base station; a step of receiving a handover command message on a target base station from among said one or more neighboring base stations; and a step of performing handover to said target base station according to said handover command message. The handover command message includes an interference message received from said serving base station after performing said handover. | 08-28-2014 |
| 20140247816 | METHOD AND DEVICE FOR RECEIVING CONTROL INFORMATION IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a wireless communication system. Particularly, the present invention pertains to a method for receiving a PDCCH signal in a wireless communication system and a device therefor, and the method comprises: receiving a subframe that includes a PDCCH search space, monitoring a plurality of PDCCH candidates in the PDCCH search space, and performing an operation according to a PDCCH signal if the PDCCH signal indicated to the UE is detected, wherein if the subframe is a first subframe, the PDCCH search space is configured in a first time domain of the subframe, if the subframe is a second subframe, the PDCCH search space is configured in a second time domain of the subframe, and the first time domain and the second time domain are multiplexed at the subframe by time division multiplexing (TDM). | 09-04-2014 |
| 20140254530 | USER EQUIPMENT AND METHOD FOR TRANSMITTING UPLINK SIGNAL, AND BASE STATION AND METHOD FOR RECEIVING UPLINK SIGNAL - The present invention provides a method and an apparatus for transmitting an uplink signal in a Wireless communication system, and a method and apparatus for receiving the uplink signal. A base station transmits to the user equipment a first cell identifier and a second cell identifier. The user equipment transmits an uplink control signal and a first reference signal sequence for demodulating the uplink control signal, or transmits an uplink data signal and a second reference signal sequence for demodulating the uplink data signal. A first reference signal is generated by using the first cell identifier, and a second reference signal is generated by using the second cell identifier. | 09-11-2014 |
| 20140286232 | METHOD FOR TRANSMITTING CONTROL SIGNAL TO RELAY NODE AT BASE STATION IN MIMO WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR - A method for transmitting a control signal to a relay node at a base station in a multi-input multi-output (MIMO) wireless communication system is disclosed. The method comprises configuring relay-resource element groups (R-REGs) in a unit of four resource elements (REs) contiguous in the ascending order of subcarrier indexes, except for resource elements for a reference signal (RS); allocating transmission resources to the control signal in a unit of the relay-resource element group; and transmitting the control signal to the relay node by using the allocated transmission resources, wherein the resource elements for the reference signal include resource elements for channel state information-RS (CSI-RS), which include resource elements for a channel state information RS to which a transmission power of 0 is allocated. | 09-25-2014 |
| 20140301330 | METHOD FOR ALLOWING TERMINAL TO PERFORM RANDOM ACCESS STEP IN WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREFOR - The present invention relates to a method for allowing a terminal to perform a random access procedure in a wireless communication system and a device therefor. Specifically, the method for allowing a terminal to perform a random access procedure in a wireless communication system comprises the steps of: setting a first search space for a first downlink control channel and/or a second search space for a second downlink control channel according to control channel configuration information of a terminal; and detecting a downlink data channel by blind decoding the first search space and/or the second search space, wherein the first downlink control channel and the second downlink control channel are detected by using different indicators. | 10-09-2014 |
| 20140301345 | METHOD FOR RECEIVING UPLINK SIGNAL, BASE STATION, METHOD FOR TRANSMITTING UPLINK SIGNAL AND USER EQUIPMENT - A predetermined number of cyclic shift values are defined for a demodulation of uplink data. An available portion of the cyclic shift values from among the cyclic shift values is transmitted to user equipment. Control information for uplink data is transmitted to the user equipment via a physical control channel. The control information includes information indicating one cyclic shift value for generating a reference signal from among the portion of the cyclic shift values. The user equipment transmits the uplink data based on the control information and a reference signal for a demodulation of the uplink data. | 10-09-2014 |
| 20140301346 | METHOD AND APPARATUS FOR TRANSCEIVING DOWNLINK CONTROL CHANNEL IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a wireless communication system, and more specifically, to a method and an apparatus for transceiving a downlink control channel. A method for a base station to transmit a downlink control channel in a wireless communication system according to one embodiment of the present invention comprises the steps of: selecting a resource element (RE) to which a demodulation reference signal (DMRS) is mapped; selecting an RE to which a downlink control channel is mapped; and transmitting the DMRS and the downlink control channel from the selected REs to a terminal, wherein the REs to which the downlink control channel is mapped constitute at least one resource element group (REG), and one or more REGs may be located on an orthogonal frequency division multiplex (OFDM) symbol on which the DMRS is mapped. | 10-09-2014 |
| 20140307700 | METHOD AND APPARATUS FOR TRANSMITTING CONTROL INFORMATION IN WIRELESS COMMUNICATION SYSTEM - A method for enabling a base station to transmit control information in a wireless communication system according to one embodiment of the present invention, comprises a step of transmitting an enhanced physical downlink channel (E-PDCCH) for a terminal using at least one physical resource block pair among a plurality of physical resource block pairs for transmitting the E-PDCCH, wherein the plurality of physical resource block pairs include one or more physical resource block pair sets, and a parameter related to a demodulation reference signal for the E-PDCCH is set with respect to each physical resource block pair set. | 10-16-2014 |
| 20140307757 | METHOD AND DEVICE FOR DECODING SIGNAL IN WIRELESS COMMUNICATION SYSTEM - One embodiment of the present invention relates to a method for allowing a terminal to decode a signal in a wireless communication system, and the method for decoding the signal comprises the steps of determining a spreading factor for a physical resource block pair included in a subframe; and decoding a decoding reference signal on said physical resource block pair by using an orthogonal sequence corresponding to said spreading factor. | 10-16-2014 |
| 20140313925 | MEASURING METHOD AND APPARATUS IN WIRELESS COMMUNICATION SYSTEM - An embodiment of the present invention relates to a method for transmitting information for measuring a terminal by a first transmission point among a plurality of transmission points which use identical time division duplex (TDD) settings in a wireless communication system. The method is an information transmitting method and includes a step of transmitting a subframe set for measurement to the terminal, wherein the subframe set is determined from first and second pieces of information related to a change of the TDD setting. | 10-23-2014 |
| 20140314031 | METHOD AND USER EQUIPMENT FOR TRANSMITTING UPLINK SIGNAL, AND METHOD AND EVOLVED NODE B FOR RECEIVING UPLINK SIGNAL - A UE receives downlink control information from an eNB through a PDCCH (Physical Downlink Control channel) including one or more CCEs (Control Channel Elements). The UE transmits ACK/NACK (ACKnowledgment/Negative ACK) information associated with the downlink control information to the eNB by using at least one of a first PUCCH resource, which corresponds to an index determined on the basis of first offset information and an index of a specific CCE in the PDCCH and is generated using first cell identification information, and a second PUCCH resource, which corresponds to an index determined on the basis of second offset information and the index of the specific CCE and is generated using second cell identification information. | 10-23-2014 |
| 20140314038 | METHOD AND APPARATUS FOR TRANSMITTING CONTROL INFORMATION IN A WIRELESS COMMUNICATION SYSTEM - The present invention relates to a method for transmitting control information by a base station in a wireless communication system, and includes a step of transmitting an enhanced physical downlink channel (EPDCCH) for a terminal using at least one physical resource block pair from among a plurality of physical resource block pairs. The plurality of physical resource block pairs include a plurality of resource units for the EPDCCH transmission to which an antenna port is allocated, respectively. When the EPDCCH for a terminal is transmitted using at least two resource units from among the at least one physical resource block pairs, the same pre-coding is applied to signals to be transmitted via at least two resource units. | 10-23-2014 |
| 20140321313 | METHOD FOR MEASURING CHANNEL STATE INFORMATION IN A WIRELESS ACCESS SYSTEM AND APPARATUS FOR SAME - Disclosed are a method for measuring channel state information in a wireless access system that supports an environment in which an amount of uplink resource and an amount of downlink resource dynamically change, and an apparatus for the method. In detail, the method comprises: a step of receiving interference measurement resource information including information on the location of an interference measurement resource set in an uplink resource for interference measurement; a step of measuring interference being received from an adjacent cell at the location of the interference measurement resource; a step of calculating channel state information using the measured interference value; and a step of transmitting the calculated channel state information to a base station. | 10-30-2014 |
| 20140328312 | METHOD AND APPARATUS FOR ENHANCED CONTROL CHANNEL-BASED OPERATION IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a wireless communication system, and more specifically, to a method and an apparatus for enhanced control channel-based operation. A method for a base station for transmitting a downlink control channel in a wireless communication system according to one embodiment of the present invention comprises the steps of: determining one antenna port to be used for the downlink control channel; mapping the downlink control channel to a resource element on the basis of a reference signal for the one antenna port; and transmitting the mapped downlink control channel to a terminal, wherein an index for the one antenna port can be determined on the basis of a control channel element (CCE) index of the downlink control channel derived from the terminal identifier. | 11-06-2014 |
| 20140341114 | METHOD AND DEVICE FOR TRANSMITTING REFERENCE SIGNAL IN WIRELESS COMMUNICATION SYSTEM - One embodiment of the present invention relates to a method for allowing a base station to transmit a reference signal in a wireless communication system, and the method for transmitting the reference signal comprises the steps of: generating a reference signal sequence; and applying an orthogonal sequence to said reference signal sequence, and mapping to resources of each antenna port, wherein said antenna ports are included in one of first and second antenna port sets, and the configuration of the antenna ports included in said respective antenna port sets varies according to the number of available resource elements in a physical resource block pair. | 11-20-2014 |
| 20140341149 | METHOD AND APPARATUS FOR ENHANCED CONTROL CHANNEL-BASED OPERATION IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a wireless communication system, and more specifically, to a method and an apparatus for enhanced-control channel-based operation. A method for a terminal for transmitting confirmation response information in a wireless communication system according to one embodiment of the present invention comprises a step for transmitting confirmation response information for a downlink data channel by means of an uplink control channel resource, wherein an index for the uplink control channel resource can be determined on the basis of a delegate antenna port of a downlink control channel derived from the identifier of the terminal. | 11-20-2014 |
| 20140342747 | DEVICE-TO-DEVICE COMMUNICATION METHOD AND A DEVICE THEREFOR - The present invention relates to a method for performing device-to-device (D2D) communication by a first terminal and a second terminal in a wireless communication system. The method includes: receiving a D2D communication setup response message including resource region information for the D2D communication from a base station; determining, based on the resource region information, whether to switch an operation frequency band of the first terminal from a first frequency band to a second frequency band; and performing the D2D communication with the second terminal at the first frequency band or the second frequency band according to the determined result, wherein either the first frequency band or the second frequency band may be used for transmission in the D2D communication and the other may be used for reception in the D2D communication. | 11-20-2014 |
| 20140348098 | METHOD FOR TRANSMITTING AND RECEIVING SIGNAL BASED ON DYNAMIC CHANGE OF WIRELESS RESOURCE IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR - The present application relates to a method for enabling a terminal to transmit or receive a signal to or from a base station in a wireless communication system. Specifically, the method comprises the steps of: acquiring at least one amongst a downlink grant and an uplink grant in a specific sub-frame; determining the use of a dynamic sub-frame which is changeable for the dynamic use on the basis of the acquired grant information as one amongst an uplink transmission or a downlink reception; and transmitting or receiving the signal to or from the base station according to the determined use. | 11-27-2014 |
| 20140348126 | METHOD AND DEVICE FOR DETERMINING REFERENCE SIGNAL ANTENNA PORT FOR DOWNLINK CONTROL CHANNEL IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a method of transmitting a downlink control channel including one or more control channel elements to a terminal by a base station in a wireless communication system. In particular, the method includes: allocating an antenna port of a demodulation-reference signal (DM-RS) to the one or more control channel elements that configure the downlink control channel; and transmitting the downlink control channel to the terminal by using the DM-RS of the allocated antenna port, wherein the antenna port of the DM-RS is determined on the basis of the number of control channel elements per resource block. | 11-27-2014 |
| 20140362758 | METHOD FOR SETTING SEARCH REGION TO DETECT DOWNLINK CONTROL CHANNEL IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS FOR SAME - In the present application, disclosed a method for a terminal setting a search region for a downlink channel in a wireless communication system. More specifically, the method comprises the steps of receiving from a base station information related to a starting symbol of the search region by way of upper layer signaling; setting the search region by using the information related to the starting symbol; and receiving the downlink control channel by performing blind coding on the search region, wherein the starting symbol of the search region changes according to the characteristic of a subframe which receives the downlink control channel. | 12-11-2014 |
| 20140362796 | METHOD AND APPARATUS FOR ALLOCATING CHANNELS RELATED TO UPLINK BUNDLING - A new PHICH channel and a new PDCCH channel are allocated when the location of a subframe to be used in transmission changes by the change in the configuration of the subframe caused by a dynamic uplink/downlink configuration in a subframe bundling transmission mode. In the event that a subframe is successfully transmitted in a subframe bundling mode, the location of the subframe that has been successfully transmitted is determined as a reference in determining the point of time of the response to the bundling transmission. In addition, the bundling transmission following the subframe that has been successfully transmitted can be omitted. | 12-11-2014 |
| 20140376456 | METHOD FOR TRANSMITTING A DOWNLINK CONTROL CHANNEL BY A BASE STATION IN A WIRELESS COMMUNICATION SYSTEM, AND APPARATUS THEREFOR - Disclosed in the present application is a method for receiving an ACK/NACK (Acknowledgement/Negative Acknowledgement) signal by a terminal in a wireless communication system. More specifically, the method comprises the steps of: transmitting an uplink data signal to a base station; a blind decoding of downlink control information including an ACK/NACK response signal regarding the uplink data signal so as to acquire a decoded signal; and checking the ACK/NACK response signal, corresponding to the terminal, from among the downlink control information. The downlink control information consists of ACK/NACK response signals corresponding to a plurality of terminals. | 12-25-2014 |
| 20140376486 | METHOD FOR EXECUTING RANDOM ACCESS PROCEDURE IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR - Disclosed is a method for a terminal to execute a random access procedure in a wireless communication system. Specifically, the method comprises the steps of: transmitting a random access preamble message to one or more nodes; receiving a random access response message from a serving cell from among the one or more nodes; and transmitting an uplink signal to a different node from among the one or more nodes, wherein the random access response message comprises information for transmitting the uplink signal to the different node. | 12-25-2014 |
| 20140376489 | ACK/NACK TRANSMISSION METHOD IN WIRELESS ACCESS SYSTEM AND APPARATUS THEREFOR - An ACK/NACK (acknowledgement/negative-ACK) transmission method in a wireless access system that supports device-to-device communication and an apparatus therefor are disclosed. Specifically, a method for transmitting ACK/NACK in a wireless access system that supports the device-to-device communication comprises the steps of: receiving first data in a first sub-frame, receiving second data from a base station in a second subframe, and when data transmission and reception through the device-to-device communication carried out in a third sub-frame for transmitting the ACK/NACK information on the first data, transmitting, to the base station in a fourth sub-frame, a grouped ACK/NACK information including the ACK/NACK information on the first data and the ACK/NACK information on the second data. | 12-25-2014 |
| 20150016317 | METHOD FOR CONTROLLING TRANSMISSION POWER OF SOUNDING REFERENCE SIGNAL IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS FOR SAME - In the present invention, disclosed is a method for a terminal, which receives a downlink signal from a first base station and transmits an uplink signal to a second base station, transmitting a sounding reference signal (SRS) in a wireless communication system. More specifically, the method comprises the steps of: receiving from the first base station downlink control information including a triggering message of a first SRS; determining transmission power of the first SRS on the basis of the downlink control information; and transmitting the first SRS to the first base station with the transmission power that is determined, wherein a transmission power control command field, which is included in the downlink control information, is applied to a closed loop parameter for determining the transmission power of the first SRS. | 01-15-2015 |
| 20150016318 | METHOD FOR OPERATING HARQ TO CHANGE DYNAMIC RESOURCE OF WIRESS RESOURCE IN WIRELESS COMMUNICATION SYSTEM, AND APPARATUS THEREFOR - The present application discloses a method for executing a hybrid automatic repeat and request (HARQ) process from a particular layer at a receiving end in a wireless communication system. Specifically, the method comprises the steps of: receiving predetermined information regarding one or more HARQ processes from a subordinate layer so as to change a configuration of a previously configured first uplink/downlink subframe configuration to a configuration of a second uplink/downlink subframe configuration; and processing one or more HARQ processes on the basis of the predetermined information when changing to the second uplink/downlink subframe configuration, wherein the one or more HARQ processes are HARQ processes, from among the HARQ processes linked to the first uplink/downlink subframe configuration, which cannot be linked to the second uplink/downlink subframe configuration. | 01-15-2015 |
| 20150016371 | METHOD FOR TERMINAL RECEIVING DOWNLINK SIGNAL IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS FOR SAME - The present invention relates to a method for receiving a downlink signal in a wireless communication system and an apparatus for same. More specifically, a method for a terminal receiving the downlink signal in the wireless communication system supporting a coordinated multi-point (CoMP) action comprises the steps of: receiving from a serving cell which operates according to a first uplink-downlink setting monitoring information with respect to an adjacent cell which operates according to a second uplink-downlink setting; and detecting control information of the adjacent cell based on the monitoring information, wherein the first uplink-downlink setting and/or the second uplink-downlink setting is a setting established by changing a portion of a wireless resource according to a specific predetermined uplink-downlink setting. | 01-15-2015 |
| 20150016410 | DEVICE TO DEVICE COMMUNICATION METHOD AND DEVICE FOR PERFORMING SAME - Provided is a method for performing device-to-device communication between a first user equipment (UE) and a second UE in a wireless communication system, the method comprising: receiving reception scheduling information for D2D communication from a base station in a first frequency band, receiving data for D2D communication from the second UE in a second frequency band based on the reception scheduling information and transmitting feedback information to the base station in response to reception of the data for D2D communication in the second frequency band, wherein the reception scheduling information is received in a subframe different from a subframe including transmission scheduling information associated with the reception scheduling information, and wherein the reception scheduling information indicates resources on which the first UE receives the data from the second UE and the transmission scheduling information indicates resources on which the second UE transmits the data to the first UE. | 01-15-2015 |
| 20150023145 | METHOD FOR TRANSMITTING AND RECEIVING SIGNAL ON BASIS OF DYNAMIC CHANGE IN WIRELESS RESOURCE IN WIRELESS COMMUNICATION SYSTEM TO WHICH CARRIER AGGREGATION SCHEME IS APPLIED, AND DEVICE THEREFORE - A method for transmitting and receiving a signal by a terminal a wireless communication system is disclosed in the present invention. More particularly, the method comprises the steps of: receiving an indicator for changing the usage of a specific subframe corresponding to a sub-component carrier from a network; determining whether near-end crosstalk between the sub-component carrier and another component carrier occurs if the usage of the subframe is changed according to the indicator; and transmitting and receiving a signal to and from the network through the sub-component carrier according to the changed usage if it is determined that the near-end crosstalk does not occur. | 01-22-2015 |
| 20150023270 | METHOD AND APPARATUS FOR TRANSMITTING UPLINK SIGNAL IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a wireless communication system and, more specifically, to a method and an apparatus for transmitting an uplink signal. The method for transmitting an uplink signal from a terminal in a wireless communication system, according to one embodiment of the present invention, comprises the steps of: receiving configuration information about candidates in a parameter set for a reference signal for physical uplink shared channel (PUSCH) modulation; receiving information indicating a specific set among the candidates in the parameter set; and generating a sequence of the reference signal using the specific set and transmitting the generated reference signal to a base station, wherein the information indicating the specific set may have a maximum value of the minimum distance between a circular shift index of the reference signal generated by a terminal using the specific set and a circular shift index of a reference signal generated by another terminal using the specific set. | 01-22-2015 |
| 20150036652 | METHOD FOR RECEIVING OR TRANSMITTING DOWNLINK SIGNALS AND APPARATUS THEREFOR - Disclosed is a method for receiving downlink signals in a wireless communication system, the method comprising: receiving downlink signal from a base station and detecting the downlink signal, wherein the detecting the downlink signal includes, if the number of resource elements (REs) to which channel state information-reference signal (CSI-RS) in a downlink subframe is mapped is smaller than the number of the enhanced control channel elements (eCCEs) for an enhanced physical downlink control channel (EPDCCH) in the downlink subframe, assuming REs, the number of which corresponds to a difference value between the number of eCCEs and the number of REs, which are included in the EPDCCH, as a zero-power CSI-RS, wherein the REs assumed as the zero-power CSI-RS is included in an eCCE that does not comprise the REs to which the CSI-RS is mapped. | 02-05-2015 |
| 20150043355 | METHOD AND DEVICE FOR MONITORING DOWNLINK CHANNELS - Disclosed are a method and a device for monitoring a downlink control channel in a wireless communication system. The method for monitoring a downlink control channel in a wireless communication system may comprise the steps of determining whether a common search space in a subframe exists in a physical downlink control channel (PDCCH) region or in an enhanced physical downlink control channel (ePDCCH) region; and when the common search space exists in the ePDCCH region, monitoring, in the ePDCCH region, a downlink control channel for hybrid automatic repeat request (HARQ) acknowledgement (ACK) or non-acknowledgement (NACK) information. | 02-12-2015 |
| 20150043472 | METHOD FOR PERFORMING HIGH-SPEED HANDOVER IN BASE STATION COOPERATIVE WIRELESS COMMUNICATION SYSTEM, AND DEVICE FOR SAME - Disclosed in the present application is a method for a terminal to perform a handover in a wireless communication system. In particular, the method comprises the steps of: receiving a random access triggering signal from a serving cell; executing a random access procedure with a target cell on the basis of the random access triggering signal; receiving a downlink signal from the serving cell and transmitting an uplink signal to the target cell; receiving, from the serving cell, a message ordering a handover to the target cell; and transmitting, to the target cell, a predetermined message indicating the completed handover, on the basis of the message ordering a handover. | 02-12-2015 |
| 20150043473 | METHOD AND WIRELESS EQUIPMENT FOR PERFORMING HARQ - A method and wireless equipment for performing a hybrid automatic repeat request (HARQ) in a wireless communication system are provided. The wireless equipment receives TB from a base station, and determines whether it is possible to completely perform decoding on the TB within a timing at which HARQ ACK/NACK for the TB is transmitted. If it is determined that it is difficult to completely perform the decoding on the TB, the wireless equipment transmits a discontinuous transmission (DTX) signal indicating the decoding on the TB was skipped to the base station. | 02-12-2015 |
| 20150043475 | CHANNEL INFORMATION TRANSMITTING METHOD AND DEVICE - A channel information transmitting method and device are disclosed. The method may comprise: a step in which a base station transmits first channel state information (CSI)-request triggering information to first user equipment (UE); a step in which the base station receives the channel state information of a first D2D link channel from the first UE in response to the first channel from the first UE in response to the first CSI-request triggering information; and a step in which the base station allocates the resource of the first D2D link channel to second UE on the basis of the channel state information. Accordingly, the present invention enables data to be transmitted directly between the user equipment without passing through the base station, thereby increasing the speed of data transmission between the user equipment and distributing the load thereof. | 02-12-2015 |
| 20150043544 | METHOD AND DEVICE FOR SENDING AND RECEIVING SIGNALS IN WIRELESS COMMUNICATION SYSTEM - An embodiment of the present invention concerns a method whereby a base station transmits signals in a wireless communication system. The signal transmission method which comprises a step of transmitting a downlink signal in a first subframe set for uplink use, wherein the transmission timing of the first subframe is determined by means of a second subframe that precedes the first subframe, and a time value for a terminal receiving the first subframe is used in the second subframe. | 02-12-2015 |
| 20150049693 | METHOD AND DEVICE FOR RECEIVING SIGNAL IN WIRELESS COMMUNICATION SYSTEM - A method for a terminal to receive a signal in a wireless communication system according to one embodiment of the present invention comprises a step for confirming whether a configuration change exists for a cell-specific reference signal (CRS) of a neighboring cell, and if the CRS configuration is changed for a neighboring cell, the method for receiving s signal comprises the steps of: receiving system information of the neighboring cell and acknowledging the changed CRS configuration thereby; and receiving s signal from a serving cell by means of the changed CRS configuration of the neighboring cell. | 02-19-2015 |
| 20150049704 | METHOD AND APPARATUS FOR TRANSMITTING OR RECEIVING DOWNLINK SIGNAL - The method for receiving a downlink signal by user equipment in a wireless communication system that supports coordinated multiple-point transmission and reception (CoMP) according to one embodiment of the present invention comprises a step of receiving information regarding two candidate seed groups for generating a sequence of downlink demodulation reference signals; and a step of generating a sequence of downlink demodulation reference signals using one of at least two candidate DMRS set parameter groups. Each of at least two candidate DMRS set parameter groups includes a cell identifier and a scrambling identifier. The scrambling identifier included in one of at least two candidate DMRS set parameter groups may be determined whether the two cell identifiers included respectively in at least two candidate DMRS set parameter groups are the same or not. | 02-19-2015 |
| 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 |
| 20150055485 | METHOD BY WHICH TERMINALS IN WIRELESS COMMUNICATION SYSTEMS RECEIVE DOWNLINK CONTROL CHANNELS AND APPARATUS FOR SAME - The present invention relates to a method by which terminals in a wireless communication system receive control channels. More particularly, the method includes the steps of: receiving control information that includes the transmission mode for the control channel and information about the number of antenna ports through a broadcast channel from a base station; and receiving the control channel on the basis of the control information. | 02-26-2015 |
| 20150055502 | METHOD AND APPRATUS FOR MEASUREMENT FOR INTER-CELL INTERFERENCE COORDINATION IN RADIO COMMUNICATION SYSTEM - A method for supporting measurement of a User Equipment (UE) by a first base station in a wireless communication system. The method according to an embodiment includes acquiring, by the first base station, information of a downlink subframe configuration of a second base station; and transmitting, by the first base station, information of measurement objects to the UE. The measurement objects are determined based on the downlink subframe configuration of the second base station. A measurement is performed by the UE in resources indicated based on the information of the measurement objects. The resources are determined as a combination of at least one Orthogonal Frequency Division Multiplexing (OFDM) symbol and at least one downlink subframe. The downlink subframe configuration of the second base station includes information indicating at least one subframe configured as an Almost Blank Subframe (ABS). | 02-26-2015 |
| 20150055518 | METHOD FOR TRANSMITTING OR RECEIVING UPLINK SIGNAL - The present invention relates to a method for user equipment transmitting an uplink signal in a time division duplex (TDD) wireless communication system, according to one embodiment. The method comprises: detecting a downlink control signal; and transmitting the uplink signal on the basis of uplink-related control information which is included in the downlink control signal that is detected, wherein a transmission power value is reported on the basis of an indicator, which indicates reporting of the transmission power value of the uplink signal at a specific time. | 02-26-2015 |
| 20150055582 | METHOD FOR DETERMINING UPLINK RESOURCE, METHOD FOR TRANSMITTING UPLINK CONTROL SIGNAL USING SAME, AND APPARATUS THEREFOR - A method for transmitting uplink control information in a wireless communication system according to one embodiment of the present invention comprises: detecting downlink control information from a downlink control channel; and transmitting uplink control information using a resource of an uplink control channel determined on the basis of a control channel element (CCE) index of the downlink control channel from which the downlink control information is detected, and a user equipment (UE)-specific offset value for determining a resource of an uplink control channel. The uplink control information for at least two downlink control channels having different first CCE indexes can be assigned in the resource of the same uplink control channel. | 02-26-2015 |
| 20150055616 | TRANSMISSION METHOD AND TRANSMISSION DEVICE - A wireless device generates a synchronization signal for maintaining synchronization and transmits the synchronization signal in a subframe containing a plurality of orthogonal frequency division multiplexing (OFDM) symbols. The first OFDM symbol in the subframe is divided into a first part and a second part, the last OFDM symbol in the subframe is divided into a first part and a second part, and the synchronization signal is transmitted in the second part of the first OFDM symbol and the first part of the last OFDM symbol. | 02-26-2015 |
| 20150063231 | METHOD FOR RECEIVING DOWNLINK CONTROL SIGNAL, USER EQUIPMENT, METHOD FOR TRANSMITTING DOWNLINK CONTROL SIGNAL AND BASE STATION - In the event where a channel strength between UE and eNB is weakened, the eNB of the present invention may configure downlink control information into the format in which at least one of fields of pre-defined existing format is deleted, the length of a relevant field is shortened to be shorter than a pre-defined length of the relevant field, or an error correcting code is added by the amount of the length deleted or reduced. UE decodes a downlink signal according to the modified format to acquire downlink control information of its own. | 03-05-2015 |
| 20150063234 | METHOD AND APPARATUS FOR TRANSMITTING OR RECEIVING DOWNLINK SIGNAL - Provided is a method for receiving a downlink signal by a user equipment (UE) in a wireless communication system supporting Coordinated Multi-point transmission and reception includes: receiving a list of candidate seeds for generating a sequence of a downlink demodulation reference signal (DM-RS) and downlink control information, and detecting the DCI; if a format of the detected DCI corresponds to a unique operation of a transmission mode configured to the UE, generating a sequence of the downlink DM-RS using one seed value selected from among the list of the candidate seeds on the basis of specific information included in the DCI; and if a format of the detected DCI corresponds to a fall-back operation of the transmission mode, generating a sequence of the downlink DM-RS using a specific seed value selected from among the list of the candidate seeds or an identifier (ID) of a serving cell. | 03-05-2015 |
| 20150063236 | METHOD AND APPARATUS FOR RECEIVING CONTROL INFORMATION IN WIRELESS COMMUNICATION SYSTEM - One embodiment of the present invention provides a method for enabling a terminal to receive control information in a wireless communication system, comprising the steps of: determining resource units for Enhanced Physical Downlink Control Channel (EPDCCH) of a plurality of resource units, with respect to each of one or more resource sets; and blind-decoding the resource units for the EPDCCH with respect to each of the one or more resource sets, wherein each of the one or more resource sets is set for one of localized EPDCCH transmission or distributed EPCCH transmission. | 03-05-2015 |
| 20150063247 | METHOD FOR PERFORMING HARQ FOR DEVICE-TO-DEVICE COMMUNICATION IN WIRELESS COMMUNICATION SYSTEM AND DEVICE FOR SAME - Disclosed in the present application is a method for performing HARQ for device-to-device communication by a first user equipment in a wireless communication system. Particularly, the method comprises: receiving scheduling information for signal transmission from an eNode B to a second user equipment; transmitting data to the specific user equipment in a first subframe according to the scheduling information; and transmitting the data or new data to the second user equipment in a third subframe according to a response signal to the data, wherein the response signal is transmitted from the second UE to the eNode B in a second subframe positioned between the first subframe and the third subframe, and an interval between the first subframe and the third subframe, which is an HARQ period for the device-to-device communication, is set as a power number of an HARQ period between the first user equipment and the eNodeB. | 03-05-2015 |
| 20150071194 | METHOD AND APPARATUS FOR TRANSMITTING DATA - The present invention relates to a method and apparatus for transmitting data. In the method for transmitting data, a first transmission point can determine a reference signal sequence r(m) and transmit the determined reference signal sequence r(m) to a terminal. A parameter ns from among parameters for generating an initial value c_init of a pseudorandom sequence in order to determine the reference signal sequence can be determined on the basis of the slot number of a wireless frame, which a second transmission point transmits to the terminal. Accordingly, the demodulation performance of the terminal can be enhanced. | 03-12-2015 |
| 20150071195 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING REFERENCE SIGNAL IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a wireless communication system and, more specifically, to a method and an apparatus for transmitting and receiving a reference signal (RS). The method for enabling user equipment (UE) of the wireless communication system to transmit an uplink signal according to one embodiment of the present invention comprises the steps of: receiving information on candidates of a first parameter set used for generating a sequence of a first RS; and generating and transmitting a sequence of a second RS using a second parameter set determined among the candidates of the first parameter set. | 03-12-2015 |
| 20150071196 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING REFERENCE SIGNAL IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a wireless communication system and, more specifically, to a method and an apparatus for transmitting and receiving a reference signal (RS). The method for enabling user equipment (UE) of the wireless communication system to transmit an uplink signal according to one embodiment of the present invention comprises the steps of: receiving information on a plurality of parameter sets used for generating a sequence of RS; and generating and transmitting the sequence of the RS using one parameter set determined among the plurality of parameter sets. The parameters constituting the plurality of parameter sets can comprise the parameters commonly applied to the plurality of parameter sets and the parameters individually applied to the plurality of parameter sets. | 03-12-2015 |
| 20150071207 | METHOD FOR TRANSMITTING CONTROL INFORMATION FOR DIRECT D2D COMMUNICATION IN WIRELESS COMMUNICATION SYSTEMS, AND APPARATUS FOR SAME - The present invention relates to a method for performing direct D2D communication by means of a first device in a wireless communication system. In particular, the method includes the steps of: detecting a scheduling message from a plurality of first subframes in which the search region of the scheduling message for D2D direct communication is activated; and performing direct D2D communication with a second device in a second subframe on the basis of the scheduling message, wherein the scheduling message includes an instructor instructing the direct D2D communication. | 03-12-2015 |
| 20150071208 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING DOWNLINK SIGNALS IN WIRELESS COMMUNICATION SYSTEMS - The present invention relates to a method for a base station to transmit a downlink signal in a wireless communication system, including the step of transmitting information related to a downlink subframe, wherein the information related to the downlink subframe is a subframe set for uplink transmission. | 03-12-2015 |
| 20150071209 | TTI BUNDLING METHOD IN WIRELESS ACCESS SYSTEMS AND APPARATUS FOR SAME - The present invention relates to a transmission time interval (TTI) bundling method in wireless access systems and to an apparatus for same. In particular, the TTI bundling method includes the following steps: a terminal receives information indicating the bundling size value from a base station; the terminal automatically re-transmits packets through a predetermined number of TTIs following four TTIs without the reception of Acknowledgement/Negative-ACK (ACK/NACK) information for the packets from the base station; the terminal receives the ACK/NACK information for the packets from the base station; and the terminal retransmits packets in a Hybrid Automatic Repeat and Request (HARQ) scheme when receiving the NACK, wherein the predetermined number of TTIs is determined according to the bundling size value. | 03-12-2015 |
| 20150071212 | METHOD AND DEVICE FOR TRANSMITTING D2D DATA IN WIRELESS COMMUNICATION SYSTEM - A method for transmitting device-to-device (D2D) data in a wireless communication system is provided. A first terminal establishes a D2D link with a second terminal. The first terminal transmits a scheduling request (SR) for an uplink and an SR for the D2D link to a base station. The first terminal receives, from the base station, scheduling information on the D2D link determined on the basis of the SR for the D2D link. The first terminal transmits D2D data to the second terminal on the basis of the scheduling information | 03-12-2015 |
| 20150078270 | METHOD FOR TRANSMITTING AND RECEIVING CONTROL INFORMATION AND APPARATUS FOR SAME - Specifically, in one aspect of the present invention, a method and apparatus for controlling transmitting power by a terminal in a wireless communication system that supports device to device (D2D) communication include: receiving a power control command through a control channel from a base station; and adjusting transmitting power according to the power control command, wherein when the terminal performs D2D communication, the power control command indicates one of a first set of power control values having more states assigned to lower the transmitting power, and when the terminal performs communication with the base station, the power control command indicates one of a second set of power control values having more states assigned to raise the transmitting power. | 03-19-2015 |
| 20150078275 | METHOD AND WIRELESS DEVICE FOR TRANSMITTING DATA PACKET - Provided are a method and a wireless device for transmitting a data packet in a wireless communication system. The wireless device engages in peer discovery with a receiver and monitors whether transmission (TX) scheduling information from a base station is received. A data packet is transmitted to the receiver on the basis of the TX scheduling information. The TX scheduling information comprises resource allocation information indicating resource allocation for transmitting the data packet, identification information indicating an identifier for the receiver; and information indicating whether the TX scheduling information is for TX scheduling or reception (RX) scheduling. | 03-19-2015 |
| 20150078282 | METHOD AND DEVICE FOR PERFORMING COORDINATED PRECODING IN WIRELESS ACCESS SYSTEM - The present invention discloses a method and device for performing coordinated precoding in a wireless access system. In particular, the present invention includes: transmitting, to a base station, a measurement result of a plurality of interference signals by a terminal, the plurality of interference signals being transmitted from a plurality of adjacent base stations; receiving quasi-orthogonal CDM (Q-CDM) code information from the base station by the terminal in order to remove some of the plurality of interference signals, the Q-CDM code information being determined by the base station and the plurality of adjacent base stations; transmitting information on a channel state to the base station on the basis of a Q-CDM code by the terminal; and receiving downlink data, to which coordinated precoding is applied, from the base station by the terminal. Interference signals that have an intensity greater than a predetermined threshold from among the plurality of interference signals may be removed by using the Q-CDM code, and interference signals that have an intensity less than the predetermined threshold from among the plurality of interference signals may be removed by using null precoding. | 03-19-2015 |
| 20150078284 | METHOD FOR REPORTING CHANNEL STATE, AND APPARATUS THEREFOR - According to one embodiment of the present invention, a method for reporting the channel state of an enhanced physical downlink control channel (EPDCCH) in a wireless communication system is disclosed, comprising the steps of: selecting N sub-bands from a set of sub-bands; and reporting a channel quality indicator (CQI) for the N sub-bands. At least one sub-band from among the N sub-bands (hereinafter, referred to as an EPDCCH SB) may be a sub-band including a pair of physical resource blocks (PRB) set as the EPDCCH. | 03-19-2015 |
| 20150085779 | METHOD FOR SETTING SEARCH REGIONS FOR DOWNLINK CONTROL CHANNELS IN WIRELESS COMMUNICATION SYSTEMS AND APPARATUS FOR SAME - The present invention relates to a method for transmitting an Enhanced Physical Downlink Control Channel (EPDCCH) from a based station to a terminal in a wireless communication system. In particular, the method includes the steps of: setting resource blocks for the EPDCCH; re-indexing by permutation indexes of the resource blocks; defining an Enhanced Control Channel Element (ECCE) for each of the re-indexed resource blocks; selecting the ECCEs in a number corresponding to the aggregation level of the EPDCCH; and transmitting the EPDCCH to the terminal using the selected ECCEs. | 03-26-2015 |
| 20150085788 | METHOD FOR TRANSMITTING HARQ ACK/NACK AND WIRELESS DEVICE USING SAME - Provided are a method for transmitting hybrid automatic repeat request (HARQ) positive-acknowledgement (ACK)/negative-acknowledgement (NACK) in a wireless communication system and a wireless device using the same. The wireless device receives downlink control information from a first base station on a downlink control channel and receives a downlink transmission block on a downlink shared channel according to the downlink control information received from the first base station. The wireless device transmits ACK/NACK to a second base station in response to the downlink transmission block on an uplink control channel. The downlink control information includes an indicator used to determine a radio resource for the uplink control channel. | 03-26-2015 |
| 20150092690 | METHOD FOR SETTING SEARCH REGION FOR DOWNLINK CONTROL CHANNEL IN WIRELESS COMMUNICATION SYSTEM, AND APPARATUS THEREFOR - The present invention relates to a method for a terminal to receive an enhanced physical downlink control channel (EPDCCH) from a based station in a wireless communication system. In detail, the method includes the step of: receiving the EPDCCH by monitoring EPDCCH candidates consisting of one or more enhanced control channel elements (ECCEs) in at least one resource block set for EPDCCH, wherein the number of ECCEs forming each of the EPDCCH candidates corresponds to an aggregation level, and the period between the EPDCCH candidates for one carrier, which is a specific aggregation level, is determined by dividing the total number of ECCEs included in each of the one or more resource blocks by a corresponding aggregation level and the number of the EPDCCH candidates which are the specific aggregation level. | 04-02-2015 |
| 20150092692 | METHOD FOR ALLOCATING UPLINK CONTROL CHANNEL FOR DOWNLINK DATA ACKNOWLEDGEMENT IN WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREFOR - The present invention relates to a method for transmitting a physical uplink control channel (PUCCH) in a wireless communication system and a device therefor. More specifically, the method for transmitting a PUCCH in a wireless communication system comprises the steps of: enabling a terminal to receive an enhanced physical downlink control channel (EPDCCH) having at least one enhanced control channel element (ECCE) from a base station; and transmitting a PUCCH corresponding to a physical data shared channel (PDSCH) scheduled by the EPDCCH to the base station, according to linkage information on the at least one ECCE, wherein the linkage information indicates a resource index of the physical uplink control channel corresponding to an index of the at least one ECCE according to an aggregation level with respect to the EPDCCH. | 04-02-2015 |
| 20150103800 | INITIAL ACCESS METHOD AND DEVICE IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a terminal's initial access method in a wireless communication system, the method including: obtaining information including a cell identification (ID) from a synchronous signal; and receiving any one of a first physical broadcast channel (PBCH) and a second PBCH channel depending on to which of a preset range the cell ID corresponds. | 04-16-2015 |
| 20150110017 | METHOD FOR TRANSMITTING OR RECEIVING ACK/NACK SIGNAL - Provided is a method for transmitting an ACK/NACK signal by a user equipment (UE) in a wireless communication system, comprising: detecting control channels in a downlink subframe of a radio frame, wherein ACK/NACK signal for the detected control channels is transmitted in an uplink resource region; determining whether uplink (UL) transmission (Tx) power control values received at respective one of the detected control channels are used as values indicating a resource region for transmission of the ACK/NACK signal, and transmitting the ACK/NACK signal in an uplink resource region decided according to the result of the determining; and if all UL Tx power control values received at the respective one of the detected control channels are not used to indicate the resource region for transmission of the ACK/NACK signal, transmitting the ACK/NACK signal in an uplink resource region linked to the respective one of the detected control channels. | 04-23-2015 |
| 20150110025 | COORDINATED BEAMFORMING METHOD IN WIRELESS ACCESS SYSTEM, AND APPARATUS THEREFOR - Disclosed are a method for performing coordinated beamforming in a wireless access system, and an apparatus for the method. More particularly, the method for performing coordinated beamforming in a wireless access system comprises: a step in which a terminal receives, from a base station, time unit information for scheduling coordinated beamforming, a step in which the terminal receives, from the base station, a downlink signal having a predetermined transmission pattern on a time-unit basis for scheduling coordinated beamforming; a step in which the terminal demodulates the downlink signal using a reference signal transmitted from the base station; and a step in which the terminal removes an interference signal transmitted from a neighboring base station using the same downlink signal, from among the received downlink signals, that was received in different antenna modes. The antenna mode of the terminal can be switched according to a predetermined pattern on a time-unit basis for scheduling coordinated beamforming. | 04-23-2015 |
| 20150117356 | METHOD AND APPARATUS FOR MONITORING DOWNLINK CONTROL CHANNEL - Provided are a method and an apparatus for monitoring a control channel in a wireless communication system. A wireless device receives indicative information for indicating a search space for a downlink control channel through an indication channel, and monitors the downlink control channel in the search space. The search space is defined by one or more pairs of physical resource blocks (PRBs). | 04-30-2015 |
| 20150124729 | METHOD FOR RECEIVING DOWNLINK CONTROL CHANNEL BY MEANS OF TERMINAL IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS FOR SAME - The present invention relates to a method for receiving a downlink control channel by means of a terminal in a wireless communication system and to an apparatus for same. More specifically, the present invention relates to a method for detecting downlink control information by means of a terminal in a wireless communication system that supports carrier aggregation, the method comprising: a step of receiving resource region information for an enhanced physical downlink control channel (EPDCCH) from a base station; a step of constructing at least one resource block as a search space for EPDCCH monitoring based on the resource region information; and a step of monitoring the search space to detect downlink control information. The resource region information is a resource region configuration based on cells to be cross-carrier scheduled. | 05-07-2015 |
| 20150124759 | METHOD AND APPARATUS FOR ENHANCED CONTROL CHANNEL-BASED OPERATION IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a wireless communication system, and more specifically, to a method and an apparatus for enhanced control channel-based operation. A method for a base station for transmitting a downlink control channel in a wireless communication system according to one embodiment of the present invention comprises the steps of: determining one antenna port to be used for the downlink control channel; mapping the downlink control channel to a resource element on the basis of a reference signal for the one antenna port; and transmitting the mapped downlink control channel to a terminal, wherein an index for the one antenna port can be determined on the basis of a control channel element (CCE) index of the downlink control channel derived from the terminal identifier. | 05-07-2015 |
| 20150124760 | METHOD AND APPARATUS FOR ENHANCED CONTROL CHANNEL-BASED OPERATION IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a wireless communication system, and more specifically, to a method and an apparatus for enhanced-control channel-based operation. A method for a terminal for transmitting confirmation response information in a wireless communication system according to one embodiment of the present invention comprises a step for transmitting confirmation response information for a downlink data channel by means of an uplink control channel resource, wherein an index for the uplink control channel resource can be determined on the basis of a delegate antenna port of a downlink control channel derived from the identifier of the terminal. | 05-07-2015 |
| 20150131562 | HARQ ACK/NACK TRANSMISSION METHOD AND WIRELESS DEVICE - Provided are a method for transmitting a hybrid automatic repeat request (HARQ) positive-acknowledgement (ACK)/negative-acknowledgement (NACK) in a wireless communication system and a wireless device using the same. A resource of an uplink control channel used for the transmission of the HARQ ACK/NACK is determined according to the format of downlink control information. | 05-14-2015 |
| 20150133137 | METHOD FOR SHARING WIRELESS RESOURCE INFORMATION IN MULTI-CELL WIRELESS COMMUNICATION SYSTEM AND APPARATUS FOR SAME - The present invention relates to a method for sharing wireless resource information by a cell in a multi-cell wireless communication system. More particularly, the method for sharing wireless resource information by a cell according to the present invention comprises: a step of transmitting wireless resource information to a neighbor cell; and a step of receiving an acknowledgement message corresponding to the wireless resource information from the neighbor cell. The wireless resource information is information for changing the used of the wireless resource of a specific wireless resource region, and the acknowledgement message is a message indicating whether the change in use of the wireless resource is allowed in the neighbor cell. | 05-14-2015 |
| 20150139135 | METHOD FOR ALLOCATING RESOURCES IN A WIRELESS COMMUNICATION SYSTEM AND A DEVICE FOR THE SAME - A method of transmitting a Relay Physical Downlink Control Channel (R-PDCCH) at a base station in a wireless communication system. A set of Virtual Resource Blocks (VRBs) are assigned for the R-PDCCH to a downlink subframe. The downlink subframe is transmitted to a relay node. The set of VRBs is configured to be same, by higher layer, in a first slot and a second slot of the downlink subframe. If the set of VRBs for the R-PDCCH is assigned in the first slot of the downlink subframe, the R-PDCCH is configured to contain a downlink assignment. If the set of VRBs for the R-PDCCH is assigned in the second slot of the downlink subframe, the R-PDCCH is configured to contain an uplink grant. | 05-21-2015 |
| 20150139141 | METHOD AND APPARATUS FOR REDUCING INTER-CELL INTERFERENCE IN RADIO COMMUNICATION SYSTEM - A method of a first cell for supporting a downlink channel demodulation at a user equipment. The method according to one embodiment includes transmitting, by the first cell to the user equipment, information on a Cell-specific Reference Signal (CRS) of a second cell including at least one CRS antenna port count information of the second cell or Multicast/Broadcast over Single Frequency Network (MBSFN) subframe configuration information of the second cell; and transmitting, by the first cell to the user equipment, a downlink signal on the downlink channel. The information on the CRS of the second cell is used by the user equipment to demodulate the downlink channel. | 05-21-2015 |
| 20150146687 | METHOD AND DEVICE FOR PERFORMING DEVICE-TO-DEVICE COMMUNICATION IN WIRELESS COMMUNICATION SYSTEM - A method for performing device-to-device (D2D) communication in a wireless communication system is provided. A master user equipment sets a D2D link with a slave user equipment. The master user equipment performs D2D communication with the slave user equipment through the D2D link. The master user equipment receives handover information of the slave user equipment from the slave user equipment. The master user equipment transmits the handover information of the slave user equipment to an evolved NodeB of a handover source cell. | 05-28-2015 |
| 20150163687 | METHOD FOR PERFORMING MEASUREMENT OF TERMINAL IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR - The present invention relates to a method for enabling a terminal to perform a measurement in a wireless communication system. More specifically, the present invention comprises the steps of: receiving information related to a specific cell group as a measuring target; determining a representative value by performing the measurement for the specific cell group according to the received information; and performing radio resource management or radio link monitoring on the basis of the representative value, wherein the specific cell group is configured to enable a virtual cell identifier to comprise a plurality of equally set cells. | 06-11-2015 |
| 20150163729 | METHOD FOR TRANSMITTING TERMINAL DETECTION SIGNAL FOR DIRECT COMMUNICATION BETWEEN TERMINALS IN WIRELESS COMMUNICATION SYSTEM, AND DEVICE THEREFOR - The present specification discloses a method for enabling a terminal to transmit and receive a discovery signal for direct communication between terminals in a wireless communication system. Particularly, the method for enabling a terminal to transmit and receive a discovery signal for direct communication between terminals in a wireless communication system comprises the steps of: transmitting the discovery signal in a first sub-time unit included in a first time unit; and transmitting the discovery signal in a second sub-time unit included in a second time unit, wherein the time unit has a plurality of sub-time units, and an index of the second sub-time unit is shifted up to a sub-time unit of predetermined size in the first sub-time unit. | 06-11-2015 |
| 20150163790 | METHOD FOR TRANSMITTING CONTROL SIGNAL FOR DEVICE-TO-DEVICE COMMUNICATION AND DEVICE THEREFOR - One embodiment of the present invention discloses a method for transmitting a control signal for device-to-device (D2D) communication with a second terminal by a first terminal in a wireless communication system, wherein the method is carried out by the first terminal and comprises the steps of: mapping control information for the D2D communication to a resource region for the D2D communication; and transmitting, to the second terminal, the mapped control information for the D2D communication with data for the D2D communication, wherein the control information for the D2D communication includes modulation and coding scheme (MCS) related information and hybrid automatic retransmission request (HARQ) related information, and the control information for the D2D communication can be mapped to at least one symbol except for symbol(s) to which a reference signal is mapped. | 06-11-2015 |
| 20150180601 | METHOD AND APPARATUS FOR CONTROLLING INTER-CELLULAR INTERFERENCE IN HETNET SYSTEM - Provided is a method and an apparatus for controlling inter-cellular interference in a heterogeneous network (HetNet) system, in which a macro cell and femto cells coexist. The apparatus for controlling inter-cellular interference overbears a control channel of the macro cell. The control apparatus determines an interference candidate resource, which is subject to inter-cell interference control, on the basis of the control channel. The control apparatus transmits an interference control message including information on the interference candidate resource. | 06-25-2015 |
| 20150180616 | METHOD FOR OPERATING BUFFER FOR DEVICE-TO-DEVICE (D2D) COMMUNICATION IN WIRELESS COMMUNICATION SYSTEM, AND APPARATUS FOR SAME - A method for a terminal transmitting/receiving a signal with device-to-device (D2D) on the basis of a hybrid automatic repeat and request (HARQ) in a wireless communication system, comprises the steps of: receiving allocation information for establishing a wireless resource for a specific HARQ process from at least one first HARQ process as a wireless resource for a second HARQ process; and transmitting/receiving the signal with an external terminal by using the wireless resource of the second HARQ process, wherein a soft buffer, which is linked to the second HARQ process, is a reestablished soft buffer that is linked to the at least one HARQ process, in accordance with the allocation information. | 06-25-2015 |
| 20150181574 | METHOD AND DEVICE FOR RECEIVING DOWN-LINK CONTROL CHANNEL IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a method of detecting down-link control information by a terminal in a wireless communication system. More particularly, the present invention includes: receiving aggregation level related information for monitoring an enhanced physical downlink control channel (EPDCCH); and monitoring a search area for the EPDCCH according to a specific aggregation level to detect down-link control information, wherein for the specific aggregation level, the number of EPDCCH candidates for detecting the down-link control information is differently defined according to the aggregation level related information. | 06-25-2015 |
| 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 |
| 20150189629 | METHOD AND APPARATUS FOR RECEIVING DOWNLINK SIGNAL IN WIRELESS COMMUNICATION SYSTEM - One embodiment of the present invention relates to a method for enabling a terminal to receive a downlink signal through an enhanced physical downlink control channel (EPDCCH), comprising the steps of: decoding fallback downlink control information (DCI) format in an EPDCCH physical resource block set; and receiving a physical downlink shared channel (PDSCH) on the basis of the fallback DCI format, wherein the PDSCH transmission for receiving the PDSCH is determined according to whether the EPDCCH physical resource block set corresponds to localized EPDCCH transmission or distributed EPDCCH transmission. | 07-02-2015 |
| 20150189640 | METHOD FOR TRANSMITTING CONTROL INFORMATION IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR - The present invention relates to a method for enabling user equipment to receive control information in a wireless communication system, comprising the steps of: receiving, from a first base station, first control information in which the control information is allocated on a specific wireless resource area according to a first pattern; and receiving from a second base station, second control information in which the control information is assigned on the specific wireless resource area according to a second pattern, wherein the first pattern is determined on the basis of identification information associated with the first base station, the second pattern is determined on the basis of identification information associated with the second base station, and the first and second patterns are set so as not to overlap each other. | 07-02-2015 |
| 20150195823 | METHOD AND APPARATUS FOR ALLOCATING CONTROL CHANNEL FOR TRANSCEIVING DATA BETWEEN DEVICES IN WIRELESS ACCESS SYSTEM - Disclosed are a method and an apparatus for transceiving a control channel for performing device-to-device (D2D) communication in a wireless access system that supports D2D communication. More particularly, the method for transmitting a control channel by a transmitter side D2D communication device according to one embodiment of the present invention comprises: a step of allocating the resource region to be used in the D2D communication by a base station; and a step of transmitting the control channel to a receiver side D2D communication device through the control channel bandwidth which is a portion of the bandwidth of the allocated resource region. The time resource of the resource region may be a resource region to be allocated for transmission via the physical downlink shared channel (PDSCH) from the base station. | 07-09-2015 |
| 20150223211 | METHOD BY WHICH A TERMINAL RECEIVES ENHANCED DOWNLINK CONTROL CHANNEL IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS FOR SAME - The present invention relates to a method by which a terminal receives an enhanced downlink control channel in a wireless communication system, and to an apparatus for same. In detail, the method for detecting downlink control information includes the steps of receiving information about a specific subframe for an enhanced physical downlink control channel (EPDCCH), and monitoring the determined number of resource blocks according to available resource regions of the specific subframe in order to detect downlink control information, wherein, when the available resource region is restricted, the number of resource blocks is increased. | 08-06-2015 |
| 20150223215 | METHOD FOR TRANSMITTING AND RECEIVING DOWNLINK CONTROL INFORMATION IN WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREFOR - A method for receiving downlink channels at a user equipment in a wireless communication system. The method according to one embodiment includes monitoring a downlink control channel in a subframe including a plurality of symbols from the base station; and decoding a downlink data channel in the subframe according to the downlink control channel. If a parameter on a starting symbol of the downlink control channel within the plurality of symbols is configured via Radio Resource Control (RRC) layer signaling, the starting symbol of the downlink control channel is determined according to the parameter, otherwise, the starting symbol of the downlink control channel is determined according to a control format indicator. | 08-06-2015 |
| 20150245324 | METHOD FOR TRANSCEIVING CONTROL INFORMATION, AND APPARATUS FOR SAME - The present invention relates to a wireless communication system. In detail, provided are a method by which a terminal receives a control channel signal in a wireless communication system, and an apparatus for same, including the steps of: receiving a subframe including a plurality of control channel sets, wherein each control channel set includes a plurality of control channel candidates; and monitoring at least one control channel set in the subframe for receiving the control channel signal, wherein the plurality of control channel candidates are scrambled by a scrambling sequence having a control channel set-specific initialization value in each control channel set. | 08-27-2015 |
| 20150249974 | METHOD AND APPARATUS FOR RECEIVING OR TRANSMITTING DOWNLINK CONTROL SIGNAL IN WIRELESS COMMUNICATION SYSTEM - The method for receiving a downlink signal by a user device in a wireless communication system according to one embodiment of the present disclosure comprises: a step of receiving control information relating to semi persistent scheduling via an upper layer signaling or a downlink control channel; and a step of decoding a semi persistent scheduled downlink data channel based on the control information relating to semi persistent scheduling. The method may comprise: a step of using, if the downlink control information receive via the downlink control channel has a first downlink control information (DCI) format, a predetermined first parameter group from among the candidate parameter groups received via the upper layer signaling so as to decode the downlink data channel; and a step of using, if the downlink control information received via the downlink control channel has a second DCI format, a second parameter group indicated by the downlink control information from among the candidate parameter groups received via the upper layer signaling so as to decode the downlink data channel. | 09-03-2015 |
| 20150264667 | METHOD AND APPARATUS FOR RECEIVING CONTROL INFORMATION IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a method and an apparatus for receiving control information by a terminal in a wireless communication system. More particularly, the method for receiving control information by a terminal in a wireless communication system, comprises: a step of receiving monitoring information regarding a common search space (CSS) on an enhanced physical downlink control channel (EPDCCH): and a step of detecting control information based on the monitoring information. | 09-17-2015 |
| 20150271691 | METHOD FOR MONITORING DOWNLINK CONTROL CHANNEL IN WIRELESS COMMUNICATION SYSTEM, AND APPARATUS THEREFOR - The present invention relates to a method for monitoring, by a terminal, an enhanced physical downlink control channel (EPDCCH) in a wireless communication system supporting carrier aggregation. In detail, the method includes the steps of receiving monitoring information about a first cell from a base station and a second cell cross-carrier scheduled from the first cell; and monitoring the EPDCCH on the basis of the monitoring information, wherein the monitoring information includes information that the number of EPDCCH candidates on the first cell is reallocated, when the maximum number of enhanced control channel elements (ECCE)) available in a specific EPDCCH set on the first cell does not support the number of the EPDCCH candidates of an aggregation level with respect to the second cell. | 09-24-2015 |
| 20150271788 | METHOD AND USER DEVICE FOR RECEIVING DOWNLINK SIGNAL, AND METHOD AND BASE STATION FOR TRANSMITTING DOWNLINK SIGNAL - The present invention provides a method and a user device for receiving a downlink signal, and a method and a base station for transmitting a downlink signal. The method for a user device receiving the downlink signal in a wireless communication system, comprises: encoding downlink control channel candidates, each of which comprise at least one control channel element (CCE); and detecting the downlink control channel of the user device, wherein each of the downlink control channel candidates is encoded in accordance with a first downlink control information (DCI) format and a CCE type for the user device, or a second DCI format and a predetermined CCE type. | 09-24-2015 |
| 20150271790 | METHOD FOR RECEIVING CONTROL INFORMATION IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR - The present invention relates to a method and an apparatus for a terminal for receiving control information in a wireless communication system. More specifically, the method comprises a step for monitoring an enhanced physical downlink control channel (EPDCCH) set comprised in an EPDCCH, wherein an aggregation level for monitoring the EPDCCH set is determined according to the configuration regarding the EPDCCH set. | 09-24-2015 |
| 20150296509 | METHOD FOR TRANSCEIVING CONTROL SIGNAL, AND APPARATUS THEREFOR - The present invention relates to a method for transmitting a signal by a terminal in a wireless communication system in which a plurality of cells including first and second cells are combined, and to an apparatus therefor. The method includes the steps of: receiving a first physical downlink shared channel (PDSCH) through a first cell and a second PDSCH through a second cell in a specific time period; and transmitting a control signal providing instructions for an acknowledgement (ACK)/negative acknowledgment (NACK)response to the first PDSCH and an ACK/NACK response to the second PDSCH, wherein when the first PDSCH includes a random access response, the ACK/NACK response to the first PDSCH or the first cell is determined as a discontinuous transmission (DTX) or NACK. | 10-15-2015 |
| 20150296551 | METHOD FOR PERFORMING D2D COMMUNICATION AND APPARATUS THEREFOR - The present invention relates to a wireless communication system. In particular, provided are a method for managing, by a terminal, mobility in a wireless communication system, and an apparatus therefore, including the steps of: receiving a plurality of TA lists, wherein the plurality of TA lists include dedicated TA lists and shared TA lists; and when TA information of a current cell matches with the shared TA lists, selectively performing a TAU process according to a communication mode, wherein when the communication mode is a non-D2D, the TAU process is performed on an MME corresponding to the TA information about the current cell, and when the communication mode is D2D, the TAU process is skipped. | 10-15-2015 |
| 20150296558 | METHOD AND APPARATUS FOR CARRYING OUT DEVICE-TO-DEVICE COMMUNICATION IN WIRELESS COMMUNICATION SYSTEM - One embodiment of the present invention is a method for carrying out device-to-device communication by means of a first terminal in a wireless communication system, the method comprising: a step of measuring a link with a second terminal; and a step of transmitting, if the result of the link measurement satisfies a predetermined condition, a link failure declaration to a third terminal. The link failure declaration includes buffer status information relating to the data being received from the second terminal. The first terminal receives the remaining portion of the data from the third terminal. | 10-15-2015 |
| 20150304149 | METHOD AND DEVICE FOR TRACKING SYNCHRONIZATION - Provided are a method and device for tracking synchronisation between apparatuses in a wireless communication system. A receiving apparatus receives, from a transmitting apparatus, a tracking signal in a subframe, and the received tracking signal is used in order to estimate the timing offset between the transmitting apparatus and the receiving apparatus. The tracking signal is received in the last OFDM symbol of the subframe, and the last OFDM symbol contains a sequence that is repeated N (N>1) times. | 10-22-2015 |
| 20150318959 | METHOD FOR SELECTING PMI FOR NON-ADAPTIVE HARQ OPERATION IN A MIMO WIRELESS COMMUNICATION SYSTEM - A method for transmitting an uplink signal at a User Equipment (UE) in a wireless communication system includes receiving, from a Base Station (BS), an uplink scheduling grant for multi-antenna transmission; transmitting the uplink signal precoded using precoding information included in the received uplink scheduling grant to the BS; and retransmitting the uplink signal to the BS according to Acknowledgment/Negative Acknowledgment (ACK/NACK) corresponding to the transmitted uplink signal. The retransmitted uplink signal is precoded using precoding information included in a most recent uplink scheduling grant or a predetermined precoding matrix if an uplink scheduling grant for the retransmission is not received from the BS. | 11-05-2015 |
| 20150319745 | SCHEDULING METHOD FOR INTER-TERMINAL DIRECT COMMUNICATION IN WIRELESS COMMUNICATION SYSTEM, AND DEVICE FOR SAME - Disclosed in the present application is a method for a terminal to perform inter-terminal direct communication in a wireless communication system. Specifically, the method comprises: a step for receiving, in a random access phase, random access signals from at least one counterpart terminal; and a step, in a resource allocation phase, for using information for scheduling included in the random access signals to allocate resources for the at least one counterpart terminal, and then transmitting the information of the allocated resources to the at least one counterpart terminal, wherein one time unit for inter-terminal direct communication comprises the random access phase, the resource allocation phase, and a phase for the implementation of inter-terminal direct communication. | 11-05-2015 |
