Patent application number | Description | Published |
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 |
20130094479 | METHODS FOR TRANSMITTING AND RECEIVING CHANNEL STATE INFORMATION (CSI) AND APPARATUSES THEREOF - A method for transmitting, by a user equipment (UE), a channel state information (CSI) in a wireless communication system is disclosed. The method includes receiving control information about a transmission of the CSI from a serving eNodeB, allocating a CSI combination composed of different CSIs to one subframe based on the received control information, and transmitting the CSI combination to the serving eNodeB in the allocated subframe, wherein the control information includes information on a maximum payload size of a CSI being able to be transmitted in one subframe, a transmission period and a transmission start time point of the CSI combination, and a transmission period and a transmission start time point of each of the different CSIs. | 04-18-2013 |
20130114498 | METHODS FOR TRANSMITTING AND RECEIVING DOWNLINK DATA IN MBSFN SUBFRAME AND APPARATUSES THEREOF - A method for receiving a downlink signal from a base station (BS) in a multicast broadcast single frequency network (MBSFN) subframe is disclosed. The method is performed by a user equipment (UE) and includes receiving information indicating an MBSFN subframe configured as an almost blank subframe (ABS) (ABS MBSFN subframe) among MBSFN subframes of which a data region is allocated a reduced transmission power lower than a transmission power in a data region of a normal subframe, and demodulating the downlink signal received in the data region of the ABS MBSFN subframe based on a cell-specific reference signal (CRS) in a control region of the ABS MBSFN subframe according to the information. | 05-09-2013 |
20130148622 | METHOD AND DEVICE FOR RELAY NODE RETRANSMITTING BACKHAUL UPLINK TO BASE STATION IN A WIRELESS COMMUNICATION SYSTEM - The present invention discloses a method for a relay node configuring a backhaul uplink hybrid automatic repeat and request (HARQ) process in a wireless communication system. More particularly, the present invention comprises the following steps: receiving from a base station a backhaul downlink subframe pattern and a HARQ process offset value; allocating a backhaul uplink subframes, based on the backhaul downlink subframe pattern excluding the subframe which is set to an access downlink subframe; applying the HARQ process offset value to the number of HARQ processes corresponding to the backhaul downlink subframe pattern; and configuring HARQ process identifiers to the allocated backhaul uplink subframes, wherein each of the configured HARQ process identifiers have a predetermined roundtrip time (RTT) value. | 06-13-2013 |
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 |
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 |
20130272158 | METHOD OF CONTROLLING UPLINK TRANSMISSION POWER AT UE IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREOF - A method of determining uplink transmission power at a user equipment (UE) in a wireless communication system is disclosed. The method includes receiving channel status information-reference signal (CSI-RS) settings and downlink transmission power values for a plurality of transmission points (TPs) from a higher layer, receiving CSI-RSs from the plurality of TPs, estimating path loss values corresponding to the plurality of TPs based on the received CSI-RSs, determining the uplink transmission power using the estimated path loss values, and transmitting an uplink signal to one or more of the plurality of TPs based upon the determined uplink transmission power. | 10-17-2013 |
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 |
20130272261 | METHOD FOR MITIGATING INTER CELL INTERFERENCE AND DEVICE THEREFOR - The present invention relates to a wireless communication system. More specifically, the present invention relates to a method and a device therefor, wherein the method comprises the steps of: receiving a PDCCH signal that contains scheduling information from a base station on a first subframe; receiving a PDSCH signal corresponding to said PDCCH signal from said base station on a second subframe; and decoding said PDSCH signal, wherein an interval between said first subframe and said second subframe is varied. | 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 |
20130286906 | METHOD FOR SIGNALING A SUBFRAME PATTERN FOR PREVENTING INTER-CELL INTERFERENCE FROM OCCURRING IN HETEROGENEOUS NETWORK SYSTEM AND APPARATUS FOR THE SAME - A method for setting an almost blank subframe (ABS) pattern in a base station of a wireless communication system is disclosed. The method comprises receiving an ABS bitmap pattern from a neighboring base station; setting the ABS pattern of the base station by repeating the ABS bitmap pattern within a previously set number of radio frames; receiving an offset value indicating an application start point of an updated ABS bitmap pattern and an application start of the updated ABS bitmap pattern from the neighboring base station; and setting the ABS pattern of the base station by repeating the updated ABS bitmap pattern from a start subframe of a specific radio frame indicated by the offset value. | 10-31-2013 |
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 |
20130294352 | METHOD OF TRANSMITTING AND RECEIVING CHANNEL STATUS INFORMATION ON MULTI-CELL OPERATION IN A WIRELESS COMMUNICATION SYSTEM AND APPARATUS FOR THE SAME - The present invention relates to a wireless communication system. And, a method of transmitting and receiving channel status information on a multi-cell operation in a wireless communication system and apparatus for the same are disclosed. The present invention may include determining a report type of channel status information on multi-cell operation and transmitting/receiving the channel status information corresponding to the determined channel status information report type via uplink data channel. | 11-07-2013 |
20130294393 | METHOD FOR REPORTING CHANNEL STATE INFORMATION IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR - The present invention relates to a method for enabling a terminal to report channel state information in a wireless communication system for supporting coordinated multi point (CoMP) transmission. Specifically, the method for enabling the terminal to report the channel state information in the wireless communication system for supporting CoMP transmission includes the steps of: receiving a reference signal from a serving cell and one or more cooperated cells; forming the channel state information for the CoMP transmission on the basis of the reference signal; and reporting the channel state information through a physical uplink shared channel to the serving cell, wherein the channel state information includes channel quality indicator (CQI) information and precoding matrix index (PMI) information, and the CQI information includes a wideband CQI and a CQI for each selected sub-band of the CoMP transmission. | 11-07-2013 |
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 |
20130315184 | METHOD FOR TRANSMITTING/RECEIVING CONTROL CHANNEL IN MULTICELL COOPERATIVE WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREFOR - Disclosed is a method for a terminal to receive a control channel in a wireless communication system. More particularly, the present invention comprises the steps of: receiving a common control channel from a base station; determining an effective channel between the base station and the terminal according to a flag bit of the terminal being indicated in the common control channel; and receiving a terminal specific control channel from the base station on the basis of the effective channel, wherein the terminal specific control channel is space-multiplexes with terminal specific control channels of other terminals controlled by the base station. | 11-28-2013 |
20130315186 | METHOD FOR TRANSMITTING CONTROL CHANNEL IN MULTICELL COOPERATIVE WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREFOR - Disclosed is a method for transmitting a control channel in a multicell cooperative wireless communication system. More particularly, the present invention comprises the steps of: a 1 | 11-28-2013 |
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 |
20140003387 | METHOD AND DEVICE FOR TERMINAL TO TRANSMIT/RECEIVE SIGNAL IN WIRELESS COMMUNICATION SYSTEM HAVING CARRIER AGGREGATION TECHNIQUE APPLIED THERETO | 01-02-2014 |
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 |
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 |
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 |
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 |
20140112263 | METHOD FOR SETTING DYNAMIC SUBFRAME IN WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREFOR - Disclosed in the present invention is a method for a terminal to transmit/receive a signal from a base station in a wireless communication system. More particularly, the present invention comprises the steps of: receiving through a physical control channel for receiving from the base station an indicator for changing a specific subframe set for one of the uses from a downlink resource and an uplink resource to another one of the uses; and according to the indicator, transmitting a signal to the base station from the specific subframe, or receiving a signal from the base station. | 04-24-2014 |
20140126512 | METHOD AND APPARATUS FOR TRANSCEIVING A DOWNLINK HARQ 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 hybrid automatic repeat (HARQ). According to one embodiment of the present invention, a method for setting an HARQ process by a terminal in a wireless communication system may comprise the steps of: receiving, from a base station, limited-resource information indicating a resource the use of which for downlink transmission to the terminal is limited; determining an HARQ process to be activated on the basis of the limited-source information; and performing an HARQ operation for the downlink transmission by means of the HARQ process to be activated. | 05-08-2014 |
20140133336 | CHANNEL STATE INFORMATION TRANSMITTING METHOD AND USER EQUIPMENT, AND CHANNEL STATE INFORMATION RECEIVING METHOD AND BASE STATION - One embodiment of the present invention discloses a method for allowing user equipment (UE), which can receive channel state information reference signals from a plurality of antenna ports, to transmit channel state information to at least one base station that controls the plurality of antenna ports. The method comprises the following steps: receiving power information of each of the plurality of antenna ports from the at least one base station; calculating channel state information on the at least one base station on the basis of the received power information and channel state information reference signals received from the plurality of antenna ports; and transmitting the calculated channel state information to the at least one base station. | 05-15-2014 |
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 |
20140219238 | METHOD AND USER EQUIPMENT FOR TRANSMITTING CHANNEL STATE INFORMATION AND METHOD AND BASE STATION FOR RECEIVING CHANNEL STATE INFORMATION - Disclosed herein is a method for, at a user equipment (UE) capable of being served by a plurality of base stations, transmitting channel state information to at least one of the base stations in a wireless communication system. The method includes receiving resource allocation information on allocation of time-frequency resources used to transmit supplemental channel state information for a neighboring base station from a serving base station of the UE, and transmitting supplemental channel state information for the neighboring base station to the serving base station, using part of time-frequency resources allocated for transmission of channel state information for the serving base station, based on the resource allocation information. | 08-07-2014 |
20140233518 | 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 receives a signal in a wireless communication system. More particularly, the method comprises: a step of receiving, from a serving cell, interference mitigation information for mitigating interference from a neighboring cell; and a step of applying an interference mitigation technique based on the interference mitigation information so as to receive a signal from the serving cell. It is assumed that the serving cell does not apply said interference mitigation technique from after the reception of the interference mitigation information to the application of the interference mitigation technique. | 08-21-2014 |
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 |
20140254531 | METHOD FOR MITIGATING INTER-CELL INTERFERENCE IN WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREFOR - The present application provides a method for allowing a cell to remove inter-cell interference in a wireless communication system. Specifically, said method comprises the steps of: receiving, from neighboring cells, time resource interference information on a first subframe type and a second subframe type; receiving, from said neighboring cells, first frequency resource interference information corresponding to said first subframe type and second frequency resource interference information corresponding to said second subframe type; and performing downlink communication and uplink communication by using said first frequency resource interference information, said second frequency resource interference information, and said time resource interference information. | 09-11-2014 |
20140254537 | METHOD AND APPARATUS FOR CONTROLLING INTER-CELL INTERFERENCE IN WIRELESS COMMUNICATION SYSTEM - A method for transmitting reduced power-almost blank subframe (r-ABS) setting information from a first cell to a second cell, according to one embodiment of the present invention, comprises a step of the first cell transmitting to the second cell r-ABS pattern information for indicating the r-ABS which is setup by the first cell, and r-ABS power indication information for indicating transmission power of a physical downlink shared channel (PDSCH) of the first cell from the r-ABS, wherein the PDSCH transmission power of the first cell can be set to a transmission power which is low compared to a common subframe. | 09-11-2014 |
20140269595 | METHOD AND DEVICE FOR RECEIVING OR TRANSMITTING DOWNLINK CONTROL SIGNAL IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus for receiving and transmitting downlink control information in a wireless communication system are disclosed. The method for receiving a downlink control signal by a user equipment (UE) in a wireless communication system includes: receiving an Enhanced Physical Downlink Control Channel (EPDCCH) from a downlink serving base station (BS); and monitoring a plurality of EPDCCH candidates in an EPDCCH set contained in the received EPDCCH, wherein a minimum aggregation level (AL) of the EPDCCH candidates is associated with a downlink (DL) bandwidth of the wireless communication system and downlink control information (DCI) format. | 09-18-2014 |
20140269597 | METHOD FOR DETERMINING TRANSMISSION POWER INFORMATION OF DOWNLINK SUBFRAME AND APPARATUS THEREFOR - A method for an eNB to transmit a downlink signal to a User Equipment (UE) is disclosed. The method includes transmitting information about a data transmission power within an OFDM symbol in a data region of a downlink subframe to the UE. The information about the data transmission power is determined according to a specific condition and the specific condition includes at least one of presence/absence of a Cell-specific Reference Signal (CRS) within the symbol and a modulation scheme or a Modulation and Coding Scheme (MCS) of the symbol. The downlink subframe is a Non-Zero Power Almost Blank Subframe (NZP ABS) in which signals are transmitted at a lower transmission power than a transmission power of a normal subframe on downlink. | 09-18-2014 |
20140293820 | METHOD AND APPARATUS FOR CONTROLLING INTER-CELL INTERFERENCE IN WIRELESS COMMUNICATION SYSTEM - A method for supporting a measurement of a user equipment, according to one embodiment, comprising the steps of: a second cell deciding at least one measurement resource set with respect to the user equipment, based on subframe setting information of a first cell and/or transmission power information of the first cell; and the second cell transmitting to the user equipment information for indicating the at least one measurement resource set that is decided, wherein the subframe setting information of the first cell can include setting information with respect to a first almost blank subframe (ABS) and a second ABS. | 10-02-2014 |
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 |
20140302866 | METHOD FOR ALLOWING TERMINAL TO DETERMINE UPLINK TRANSMISSION POWER IN WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREFOR - The present invention relates to a method for determining uplink transmission power of a terminal in a wireless communication system and a device therefore. Specifically, the method for allowing a terminal to determine uplink transmission power in a wireless communication system comprises the steps of: receiving information for determining uplink transmission power from an upper layer; measuring a path loss value for base stations, which participate in cooperate communication, on the basis of information for determining transmission power, on the basis of the received information for determining the transmission power and the measured path loss value, wherein the information for determining the transmission power is information for channel estimation of at least one base station which participates in the cooperative communication. | 10-09-2014 |
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 |
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 |
20140370908 | METHOD FOR REDUCING INTER-CELL INTERFERENCE IN COOPERATIVE MULTI-CELL WIRELESS COMMUNICATION SYSTEM, AND APPARATUS FOR SAME - The present invention relates to a method for reducing inter-cell interference in a wireless communication system and to an apparatus for same. More specifically, a method for reducing the inter-cell interference between serving cells in the cooperative multi-cell wireless communication system comprises the steps of: receiving from an adjacent cell interference information on a specific wireless resource region; and reducing interference with respect to the specific wireless resource region based on the interference information, wherein the specific wireless resource region is a wireless resource region that the serving cell uses by changing the purpose of a wireless resource. | 12-18-2014 |
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 |
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 |
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 |
20150023269 | METHOD FOR TRANSMITTING UPLINK DATA INFORMATION IN A WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR - The present invention relates to a method for transmitting uplink data information in a wireless communication system, and an apparatus therefor. Specifically, the method for a terminal for transmitting uplink data information by means of a hybrid automatic repeat request (HARQ) comprises the steps of: configuring at least one uplink subframe on the basis of first HARQ process; changing a particular uplink subframe, from among the uplink subframes, to a downlink subframe; receiving, from a base station, an indication information indicating the change from the first HARQ process to a second HARQ process; reconfiguring, in accordance with the indication information, at least one uplink subframe on the basis of the second HARQ process; and transmitting uplink data information by means of the reconfigured uplink subframe. | 01-22-2015 |
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 |
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 |
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 |
20150055521 | METHOD AND DEVICE FOR AGGREGATING CARRIERS IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a method and a device for aggregating carriers in a wireless communication system. In the method, a first carrier is configured, and a second carrier is configured in addition to the first carrier. The first carrier is a time division duplex (TDD) carrier for which an uplink subframe and a downlink subframe are positioned at different times in a frame, and the second carrier is a carrier only for an uplink, which consists of uplink subframes. | 02-26-2015 |
20150055584 | METHOD FOR DYNAMIC ALLOCATION OF RADIO RESOURCES IN WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREFOR - The present invention relates to a method for transmitting an uplink signal of a terminal using multiple component carriers in a wireless communication system and, more particularly, to a method for transmitting an uplink signal of a terminal using multiple component carriers in a wireless communication system which supports carrier aggregation, comprising the steps of: receiving setting information on a second-type component carrier from a base station through a first-type component carrier; and transmitting an uplink signal to the base station through the second-type component carrier, wherein the use of the second-type component carrier for a specific subframe is changed according to the setting information. | 02-26-2015 |
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 |
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 |
20150078326 | METHOD FOR TRANSMITTING ENHANCED CONTROL CHANNEL IN A WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR - The present invention relates to a method for transmitting a downlink control channel in a wireless communication system, and an apparatus therefor. Specifically, the method for transmitting an enhanced a physical downlink control channel (EPDCCH) from a serving cell comprises the steps of: forming a plurality of enhanced resource element groups (EREGs) by dividing available resource elements, comprised in one physical resource block (PRB) pair, into a predetermined number; forming an enhanced control channel element (ECCE), which is a resource allocation unit for the EPDCCH, by selecting one or more EREGs from among the plurality of EREGs; and transmitting the EPDCCH by means of the transmission resource allocated, for each ECCE, for the EPDCCH, wherein one or more EREGs forming the ECCE is selected on the basis of a cell identifier of the serving cell and/or an index of the one PRB pair. | 03-19-2015 |
20150085782 | METHOD AND APPARATUS FOR MAKING HARQS IN CARRIER AGGREGATION SYSTEMS - The present invention relates to a method and system for making a hybrid automatic repeat requests (HARQ) in a carrier aggregation system. The method receives downlink data through a first subframe of a first carrier, transmits acknowledgement/negative-acknowledgement (ACK/NACK) for the downlink data through a second subframe of a second carrier, and re-receives the downlink data through a third subframe of the first carrier, wherein the first carrier only includes the downlink subframes, and the second carrier includes the uplink subframes and the downlink subframes. | 03-26-2015 |