Patent application number | Description | Published |
20120039179 | METHOD AND APPARATUS FOR SUPPORTING MULTIPLE CARRIERS - A method and apparatus supporting multiple carriers is provided. A user equipment receives a self-control format indicator (CFI) indicating a size of a control region of a first carrier by using the first carrier. The user equipment receives downlink control information (DCI) comprising a cross-CFI indicating a size of a control region of a second carrier over a first downlink control channel in the control region of the first carrier. The user equipment monitors a second downlink control channel in the control region of the second carrier. | 02-16-2012 |
20120039285 | METHOD AND APPARATUS FOR TRANSMITTING HARQ ACK/NACK SIGNAL IN MULTI-ANTENNA SYSTEM - A method and apparatus of transmitting an ACK/NACK signal for a hybrid automatic repeat request (HARQ) in a wireless communication system is provided. A first ACK/NACK resource index and a second ACK/NACK resource index based on resources used to transmit a downlink control channel is determined. An ACK/NACK signal for a downlink transport block is transmitted through a plurality of antennas using first ACK/NACK resources obtained from the first ACK/NACK resource index and second ACK/NACK resources obtained from the second ACK/NACK resource index. An HARQ ACK/NACK signal can be reliably transmitted through a plurality of antennas. | 02-16-2012 |
20120113944 | METHOD FOR TRANSMITTING CONTROL INFORMATION AND DEVICE THEREFOR - The present invention relates to a wireless communication system. More specifically, the present invention relates to a method for transmitting uplink control information and a device therefor, and the method comprises the steps of: selecting, from a plurality of uplink control channel resources, one uplink control channel resource corresponding to a plurality of HARQ-ACKs; and transmitting bit values corresponding to said plurality of HARQ-ACKs by using the selected uplink control channel resource. | 05-10-2012 |
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 |
20120294273 | METHOD AND DEVICE FOR TRANSMITTING EXTENDED UPLINK CONTROL INFORMATION IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a method for a base station receiving uplink control information from a terminal, according to one embodiment of the present invention, comprises the following steps: transmitting allocated information which is allocated to the terminal from a plurality of physical uplink control channel (PUCCH) transmission resources, each of the PUCCH transmission resource comprising a combination of an information resource and a reference signal (RS) resource, including a plurality of RS resources; and receiving confirmation response information, RS, and additional control information among the plurality of PUCCH transmission resources, which are transmitted from the terminal through a specific information resource or a specific RS resource, wherein the additional control information can be indicated based on the selection of the specific RS resource which transmits a RS among a plurality of RS resources. | 11-22-2012 |
20120307771 | METHOD AND APPARATUS FOR ALLOCATION OF DISCONTINUOUS UPLINK RESOURCE - The present invention relates to a wireless communication system. More particularly, the present invention relates to a method and apparatus for transmitting an uplink signal in a wireless communication system, wherein the method for transmitting an uplink signal in a wireless communication system comprises: a step of receiving a control channel signal containing resource allocation information; and a step of transmitting an uplink signal in accordance with the control channel signal, wherein the resource allocation information has a combination index r to be used for indicating two sets of resource blocks, and each set of resource blocks includes one or more continuous resource blocks. | 12-06-2012 |
20120320805 | METHOD AND APPARATUS FOR TRANSMITTING CONTROL INFORMATION - The present invention relates to a wireless communication system. More particularly, the present invention relates to a method and apparatus for transmitting uplink control information when TDD and a plurality of cells are configured, and comprises the following steps: receiving one or more of at least one PDCCH signal and at least one PDSCH signal; generating for each of the cells reception reply information on one or more of the at least one PDCCH signal and the at least one PDSCH signal; and transmitting the reception reply information for each of the plurality of cells which are connected. | 12-20-2012 |
20120320859 | METHOD AND DEVICE FOR TRANSMITTING SOUNDING REFERENCE SIGNAL AND EXTENDED UPLINK CONTROL INFORMATION IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a wireless communication system, and more particularly, discloses a method and a device for transmitting a sounding reference signal and extended uplink control information in a wireless communication system. A method for a terminal transmitting the uplink control information through a physical uplink control channel in the wireless communication system, according to one embodiment of the present invention, comprises the following steps: creating a block by multiplying a modulation symbol, which shows the uplink control information, to a circular shift sequence, and creating a N | 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 |
20130021980 | METHOD FOR TRANSMITTING CHANNEL STATE INFORMATION IN WIRELESS ACCESS SYSTEM - The present invention provides various methods for transmitting channel state information relative to one or more serving cells in a carrier-coupled environment, and devices for supporting the same. As one embodiment of the present invention, a method for reporting channel state information (CSI) in a wireless access system that supports carrier coupling comprises the steps of: allowing a terminal to receive information related to a CSI report mode for one or more serving cells from a base station; and allowing the terminal to report the channel state information (CSI) on the one or more serving cells to the base station by considering the CSI report mode. In this case, if first type CSI for a first serving cell and second type CSI for a second serving cell are transmitted on the same subframe, the terminal can report CSI for one serving cell only, to the base station, according to priorities of CSI report types related to the CSI report mode. | 01-24-2013 |
20130044653 | METHOD AND APPARATUS FOR TRANSMITTING CONTROL INFORMATION - The present invention relates to a wireless communication system. More particularly, the present invention relates to a method and apparatus for transmitting uplink control information in the event that a plurality of cells is constructed, wherein the method comprises the following steps: receiving a PDCCH and/or a PDSCH; generating acknowledgement information on the PDCCH and/or PDSCH; and, if acknowledgement information transmission timing and channel state information transmission timing collide with each other, dropping the channel state information and transmitting only the acknowledgement information, or transmitting the acknowledgement information and the channel state information together in accordance with a predetermined condition. | 02-21-2013 |
20130088973 | METHOD FOR ALLOCATING CONTROL CHANNEL AND DEVICE THEREFOR - The present invention relates to a wireless communication system. More particularly, the present invention relates to a method for allowing a terminal to receive a PDCCH in a wireless communication system using multiple carriers and a device therefore, and the method comprises the steps of: receiving a plurality of search spaces through a control region on a subframe, wherein each search space includes a plurality of PDCCH candidate sets, and each search space corresponds to each carrier; and monitoring PDCCH candidates for the PDCCH, wherein the intervals between the respective search spaces within said control region are determined by considering the ratios between the number of scheduled carriers and the number of CCEs within the control region. | 04-11-2013 |
20130089063 | METHOD AND DEVICE FOR UPLINK RESOURCE ALLOCATION - The present invention relates to a wireless communication system. In more detail, the present invention relates to a method for transmitting an uplink in a wireless communication system and to a device therefore, wherein the method for transmitting an uplink in a wireless communication system comprises the steps of: receiving a control channel signal including resource allocation information; and transmitting an uplink signal according to control channel signal. | 04-11-2013 |
20130094410 | METHOD AND APPARATUS FOR TRANSMITTING CONTROL INFORMATION - The present invention relates to a wireless communication system. Specifically, the present invention relates to a method and apparatus for transmitting uplink control information when a plurality of cells is configured. The method includes receiving at least one of PDCCH(s) and PDSCH(s), generating reception response information about at least one of the PDCCH(s) and the PDSCH(s), and transmitting the reception response information through a PUCCH on an SR subframe. | 04-18-2013 |
20130100866 | METHOD AND APPARATUS FOR TRANSMITTING CONTROL INFORMATION - The present invention relates to a wireless communication system. More particularly, the present invention relates to a method and apparatus for transmitting uplink control information in the event of a plurality of cell, wherein the method comprises the following steps; receiving a PPCCH and/or a PDSCH; generating reception acknowledgement information for said PDCCH and/or PDSCH: and transmitting the reception acknowledgement information in an SR subframe via a PUCCH. | 04-25-2013 |
20130121302 | METHOD AND DEVICE FOR TRANSMITTING CONTROL INFORMATION - The present invention relates to a wireless communication system. More specifically, the present invention relates to a method and device for transmitting uplink control information when a plurality of cells are configured in a wireless communication system, the method comprising the steps of: generating a UCI; and determining a PUCCH resource for transmitting the UCI. If the reception response information and channel state information are triggered in the same subframe, only a first UCI generated from the reception response information is transmitted through a first PUCCH. If the reception response information and scheduling request information are triggered in the same subframe, a second UCI generated by jointly coding the reception response information and the scheduling request information is transmitted through a second PUCCH. The resource used for a reference signal for demodulating the first or second PUCCH is allocated in consideration of the UCI transmitted on PUCCH. | 05-16-2013 |
20130128813 | METHOD FOR TRANSMITTING CHANNEL STATE INFORMATION IN WIRELESS ACCESS SYSTEM - The present invention provides various methods for transmitting channel state information relative to one or more serving cells in a carrier-coupled environment, and devices for supporting the same. As one embodiment of the present invention, a method for reporting channel state information (CSI) in a wireless access system that supports carrier coupling comprises the steps of: allowing a terminal to receive information related to a CSI report mode for one or more serving cells from a base station; and allowing the terminal to report the channel state information (CSI) on the one or more serving cells to the base station by considering the CSI report mode. In this case, if first type CSI for a first serving cell and second type CSI for a second serving cell are transmitted on the same subframe, the terminal can report CSI for one serving cell only, to the base station, according to priorities of CSI report types related to the CSI report mode. | 05-23-2013 |
20130155868 | METHOD AND APPARATUS FOR MONITORING CONTROL CHANNEL IN WIRELESS COMMUNICATION SYSTEM - The present disclosure provides a method for monitoring a control channel in a wireless access system, including setting the number of maximum blind decoding times for each user equipment (UE)-specific search space and a common search space to which the control channel is transmitted; monitoring a plurality of candidate control channels in each of the search spaces, based on the number of maximum blind decoding times, set in the respective search spaces; and receiving downlink control information through a control channel which has succeeded in the blinding decoding among the plurality of candidate control channels, wherein the common search space is allocated to at least one carrier group that includes at least one component carrier. | 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 |
20130163487 | METHOD AND APPARATUS FOR TRANSMITTING CONTROL INFORMATION - The present invention relates to a wireless communication system. More particularly, the present invention relates to a method and apparatus for transmitting uplink control information in the event of a plurality of cell, wherein the method comprises the following steps: receiving a PDCCH and/or a PDSCH; generating reception acknowledgement information for said PDCCH and/or PDSCH; and transmitting the reception acknowledgement information in an SR subframe via a PUCCH. | 06-27-2013 |
20130170463 | METHOD AND DEVICE FOR TRANSMITTING CONTROL INFORMATION - The present invention relates to a wireless communication system. Specifically, the present invention relates to a method for transmitting uplink control information and to an apparatus therefor. The present invention relates to a method comprising the steps of: selecting one uplink control channel resource corresponding to a plurality of HARQ-ACKs from among a plurality of uplink control channel resources; and transmitting a bit value corresponding to the plurality of HARQ-ACKs using the selected uplink control channel resource, and to an apparatus therefor. | 07-04-2013 |
20130182675 | METHOD AND DEVICE FOR TRANSMITTING CONTROL INFORMATION - The present invention relates to a wireless communication system. Specifically, the present invention relates to a method for transmitting uplink control information and to an apparatus for the same. The present invention relates to a method and to a device for said method which comprises the steps of selecting one uplink control channel resource corresponding to a plurality of HARQ-ACKs from among a plurality of uplink control channel resources, and transmitting a bit value corresponding to the plurality of HARQ-ACKs by using the selected uplink control channel resource. | 07-18-2013 |
20130195063 | METHOD FOR TRANSMITTING CONTROL INFORMATION AND DEVICE THEREFOR - The present invention relates to a wireless communication system. More specifically, the present invention relates to a method for transmitting uplink control information in an environment comprising a plurality of cells and to a device therefore, and relates to a method which comprises: receiving one, either or both of one or more PDCCH signals and one or more PDSCH signals; and generating entire received response information with respect to the one, either or both of the one or more PDCCH signals and one or more PDSCH signals, wherein portions of the received response information constituting the entire received response information are generated separately for each cell and each subframe. | 08-01-2013 |
20130215807 | METHOD AND APPARATUS FOR TRANSMITTING CONTROL INFORMATION - A method and apparatus for transmitting uplink control information in an FDD wireless communication system, in which a plurality of cells are arranged, are provided. The method includes: receiving one or more PDCCH signals and one or more PDSCH signals corresponding to the PDCCH signals in downlink subframe N; generating ACK/NACK information on the basis of the result of the acknowledgement of receipt of at least the one or more PDSCH signals; and transmitting the ACK/NACK information through a PUCCH. If a predetermined condition is satisfied, at least one of the PDCCH signals includes information indicating a DAI value, and if the predetermined condition is not satisfied, at least one of the PDCCH signals includes information indicating a value of a PUCCH resource for the ACK/NACK information. The information indicating the DAI value and the information indicating the value of the PUCCH resource are provided in the same field. | 08-22-2013 |
20130229993 | METHOD AND DEVICE FOR UPLINK RESOURCE ALLOCATION - The present invention relates to a wireless communication system. In more detail, the present invention relates to a method for transmitting an uplink in a wireless communication system and to a device therefore, wherein the method for transmitting an uplink in a wireless communication system comprises the steps of: receiving a control channel signal including resource allocation information; and transmitting an uplink signal according to control channel signal. | 09-05-2013 |
20130272172 | METHOD AND APPARATUS FOR TRANSMITTING CONTROL INFORMATION - The present invention relates to a wireless communication system. More particularly, the present invention relates to a method and apparatus for transmitting uplink control information in the event that a plurality of cells is constructed, wherein the method comprises the following steps: receiving a PDCCH and/or a PDSCH; generating acknowledgement information on the PDCCH and/or PDSCH; and, if acknowledgement information transmission timing and channel state information transmission timing collide with each other, dropping the channel state information and transmitting only the acknowledgement information, or transmitting the acknowledgement information, or transmitting the acknowledgement information and the channel state information together in accordance with a predetermined condition. | 10-17-2013 |
20130286905 | METHOD AND APPARATUS FOR TRANSMITTING CONTROL INFORMATION - The present invention relates to a wireless communication system. More particularly, the present invention relates to a method and apparatus for transmitting uplink control information when TDD and a plurality of cells are configured, and comprises the following steps: receiving one or more of at least one PDCCH signal and at least one PDSCH signal; generating for each of the cells reception reply information on one or more of the at least one PDCCH signal and the at least one PDSCH signal; and transmitting the reception reply information for each of the plurality of cells which are connected. | 10-31-2013 |
20130322304 | TRANSMISSION METHOD AND RECEPTION METHOD FOR DOWNLINK SIGNAL, USER EQUIPMENT, AND BASE STATION - The present invention provides a DL grant transmission/reception measure for a cross-CC scheduling, when cells operating in different TDD DL-UL configurations from each other are merged. In addition, the present invention provides a measure for transmitting/receiving uplink ACK/NACK information for DL data transmitted according the DL grant. | 12-05-2013 |
20130322307 | METHOD FOR TRANSMITTING/RECEIVING SIGNAL AND DEVICE THEREFOR - The present invention relates to a wireless communication system. More particularly, the present invention relates to a method for transmitting uplink control information and a device therefor, the method comprising the steps of: forming a plurality of serving cells each having different UL-DL configurations; receiving one or more signals requiring a HARQ-ACK response from M(M≧1) number of subframes; and executing the process for transmitting the HARQ-ACK response to the one or more signals in a specific subframe corresponding to the M number of subframes, wherein, only when the specific subframe is set as an uplink in all of the plurality of serving cells, the HARQ-ACK response to the one or more signals are transmitted through the specific subframe. | 12-05-2013 |
20130336262 | METHOD FOR TRANSMITTING CONTROL INFORMATION AND APPARATUS THEREFOR - The present invention relates to a wireless communication system. Specifically, the present invention relates to a method for transmitting uplink control information and an apparatus therefore, which includes the steps of selecting one uplink control channel resource corresponding to a plurality of HARQ-ACKs from a plurality of uplink control channel resources, and transmitting bit values corresponding to the plurality of HARQ-ACKs using the selected uplink control channel resource. | 12-19-2013 |
20130343242 | METHOD FOR RECEIVING DOWNLINK CONTROL INFORMATION AND METHOD FOR TRANSMITTING SAME, USER EQUIPMENT AND BASE STATION - Abstract: The present invention relates to a wireless communication system. More particularly, the present invention, when cells each operating in different TDD DL-UL configurations are merged, provides a plan for setting a UL grant transmission/reception timing for a cross-CC scheduling. In addition, the present invention, according to the UL grant timing, provides a base station for transmitting UL grant to a user equipment, and a user equipment for receiving the UL grant from the base station. | 12-26-2013 |
20130343243 | METHOD FOR RECEIVING ACK(ACKNOWLEDGEMENT)/NACK (NEGATIVE ACK) INFORMATION AND METHOD FOR TRANSMITTING SAME, USER EQUIPMENT AND BASE STATION - The present invention relates to a wireless communication system. More particularly, the present invention, when cells each operating in different TDD DL-UL configurations are merged, provides a plan for setting a downlink ACK/NACK transmission/reception timing for a cross-CC scheduling. In addition, the present invention, according to the downlink ACK/NACK transmission/reception timing, provides a base station for transmitting a ACK/NACK channel to a user equipment, and a user equipment for receiving the ACK/NACK channel from the base station. | 12-26-2013 |
20140003303 | METHOD FOR TRANSMITTING/RECEIVING SIGNAL AND DEVICE THEREFOR | 01-02-2014 |
20140003392 | TRANSMISSION METHOD AND RECEPTION METHOD FOR UPLINK SIGNAL, USER EQUIPMENT, AND BASE STATION | 01-02-2014 |
20140022962 | METHOD FOR TRANSMITTING/RECEIVING SIGNAL AND DEVICE THEREFOR - The present invention relates to a wireless communication system. More particularly, the present invention relates to a method for transmitting an uplink signal in a wireless communication system supporting a carrier merge, and a device therefor, the method comprising the steps of: setting a first cell having a first TDD UL-DL configuration and a second cell having a second TDD UL-DL configuration; receiving data through a DL subframe of the first cell; and transmitting reception response information on the data through a UL subframe of the second cell, wherein the relationship between the DL subframe and the UL subframe is determined by a parameter value set in a specific TDD UL-DL configuration inside a TDD UL-DL configuration set, and the specific TDD UL-DL configuration is the TDD UL-DL configuration having the least number of DL subframes from one or more TDD UL-DL configurations, in which subframes set as a DL in the first cell or the second cell are all set as DLs. | 01-23-2014 |
20140022963 | METHOD FOR TRANSMITTING/RECEIVING SIGNAL AND DEVICE THEREFOR - The present invention relates to a wireless communication system. More particularly, the present invention relates to a method comprising: setting a first cell having a first TDD UL-DL configuration and a second cell having a second TDD UL-DL configuration; receiving a PHICH signal in a subframe #(n−L) of the first cell, or receiving a PDCCH signal in a subframe #(n−K) of the first cell; and transmitting a PUSCH signal in a subframe #n of the second cell, corresponding to the PHICH signal or the PDCCH signal, wherein the relationship between the subframes #(n−L), #(n−K), and #n is determined in consideration of a parameter value set in a specific TDD UL-DL configuration, which is the TDD UL-DL configuration having the least number of UL subframes from TDD UL-DL configuration(s), in which subframes set as UL in the first or second cell are all set as ULs. | 01-23-2014 |
20140022967 | METHOD FOR TRANSMITTING CONTROL INFORMATION AND APPARATUS FOR SAME - A wireless communication system is disclosed. A method for transmitting uplink control information in a wireless communication system supporting carrier aggregation and operating in TDD includes: generating a first HARQ-ACK (hybrid automatic repeat request-acknowledgement) set for a first cell using a value M; generating a second HARQ-ACK set for a second cell using the value M; and transmitting a bit value corresponding to a third HARQ-ACK set including the first HARQ-ACK set and the second HARQ-ACK set in an uplink subframe n, wherein M=max(M1, M2), max(M1, M2) representing a value being equal to or larger than not smaller between M1 and M2, wherein M1 corresponds to the number of downlink subframes corresponding to the uplink subframe n in the first cell, and M2 corresponds to the number of downlink subframes corresponding to the uplink subframe n in the second cell, wherein the first cell and the second cell have different UL-DL configurations. | 01-23-2014 |
20140036840 | METHOD AND APPARATUS FOR ALLOCATION OF DISCONTINUOUS UPLINK RESOURCE - The present invention relates to a wireless communication system. More particularly, the present invention relates to a method and apparatus for transmitting an uplink signal in a wireless communication system, wherein the method for transmitting an uplink signal in a wireless communication system comprises: a step of receiving a control channel signal containing resource allocation information; and a step of transmitting an uplink signal in accordance with the control channel signal, wherein the resource allocation information has a combination index r to be used for indicating two sets of resource blocks, and each set of resource blocks includes one or more continuous resource blocks. | 02-06-2014 |
20140056184 | METHOD FOR TRANSMITTING CONTROL INFORMATION AND APPARATUS FOR SAME - A wireless communication system is disclosed. A method for transmitting uplink control information in a wireless communication system supporting carrier aggregation and operating in TDD includes: generating a first HARQ-ACK (hybrid automatic repeat request—acknowledgement) set for a first cell using a value M; generating a second HARQ-ACK set for a second cell using the value M; and transmitting a bit value corresponding to a third HARQ-ACK set including the first HARQ-ACK set and the second HARQ-ACK set in an uplink subframe n, wherein M=max(M1, M2), max(M1, M2) representing a value being equal to or larger than not smaller between M1 and M2, wherein M1 corresponds to the number of downlink subframes corresponding to the uplink subframe n in the first cell, and M2 corresponds to the number of downlink subframes corresponding to the uplink subframe n in the second cell, wherein the first cell and the second cell have different UL-DL configurations. | 02-27-2014 |
20140056188 | METHOD AND APPARATUS FOR TRANSMITTING CONTROL INFORMATION IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a method for receiving a downlink control signal in a TDD-based wireless communication system, and to an apparatus therefor. The method comprises receiving a downlink signal via a downlink interval in a specific frame including the downlink interval, a guard interval and an uplink interval. A combination of the downlink interval, the guard interval and the uplink interval is given using configuration information on the specific subframe. When the configuration information is given such that the length of the downlink interval is larger than a specific value, detecting a first type of PDCCH is performed in the specific subframe. When the configuration information is given such that the length of the downlink interval is equal to or smaller than the specific value, detecting the first type of PDCCH is skipped in the specific subframe. | 02-27-2014 |
20140056268 | METHOD AND APPARATUS FOR ALLOCATION OF DISCONTINUOUS UPLINK RESOURCE - The present invention relates to a wireless communication system. More particularly, the present invention relates to a method and apparatus for transmitting an uplink signal in a wireless communication system, wherein the method for transmitting an uplink signal in a wireless communication system comprises: a step of receiving a control channel signal containing resource allocation information; and a step of transmitting an uplink signal in accordance with the control channel signal, wherein the resource allocation information has a combination index r to be used for indicating two sets of resource blocks, and each set of resource blocks includes one or more continuous resource blocks. | 02-27-2014 |
20140078944 | METHOD FOR TRANSMITTING CONTROL INFORMATION AND APPARATUS THEREFOR - The present invention relates to a wireless communication system. More particularly, the present invention relates to a method for transmitting uplink control information in a wireless communication system that supports carrier aggregation and operates in a TDD system, and to an apparatus therefor. The system comprises the steps of: generating a first set of hybrid automatic repeat request acknowledgement (HARQ-ACK) associated with a first component carrier (CC); generating a second set of HARQ-ACK associated with a second CC; and transmitting 4-bit information corresponding to the first set of HARQ-ACK and the second set of HARQ-ACK on a physical uplink shared channel (PUSCH). | 03-20-2014 |
20140086119 | METHOD FOR USER EQUIPMENT TRANSRECEIVING SIGNAL IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a method for transceiving signals between a user equipment and a base station in a wireless communication system, and to an apparatus for same. More particularly, a method for the user equipment transceiving the signal in the wireless communication system, which is operated by a time division duplex (TDD), comprises the steps of: monitoring a physical downlink control channel (PDCCH) with respect to a special frame; and receiving a physical downlink shared channel (PDSCH) that corresponds to the PDCCH from the special subframe, when a PDCCH having downlink allocation information of the special subframe is detected, wherein the PDSCH is received by at least one orthogonal frequency division multiplexing (OFDM) symbol from a plurality of OFDM symbols that correspond to a defined guard period (GP) and an uplink pilot time slot (UpPTS) within the special subframe, according to a TDD uplink-downlink configuration. | 03-27-2014 |
20140086197 | DATA TRANSCEIVING METHOD AND APPARATUS FOR SAME - The present invention relates to a wireless communication system. More particularly, the present invention relates to a method and an apparatus in which a terminal receives downlink data in a wireless communication system. The method comprises: a step of receiving a control channel signal including resource allocation information through a specific time domain of a subframe having a plurality of time domains; and a step of receiving the downlink data through the downlink data channel resource domain scheduled by the resource allocation information within said specific time domain. In cases where the downlink data channel resource domain is overlapped with a common search space, the downlink data is received through the residual resource domain except the portion overlapped with the common search space from among the downlink data channel resource domain. | 03-27-2014 |
20140092793 | METHOD FOR SETTING SUBFRAME IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a method for setting a subframe in a wireless communication system and to an apparatus for same. More particularly, the method for setting the subframe in the wireless communication system that is operated by a time division duplex (TDD), comprises the steps of: setting at least one uplink subframe and at least one downlink subframe according to an uplink-downlink (UL-DL) configuration; receiving resetting information with respect to a specific uplink subframe from the at least one uplink subframes; and setting the specific uplink subframe so as to include a first section for an uplink and a second section for a downlink. | 04-03-2014 |
20140092794 | METHOD FOR TRANSMITTING AND RECEIVING A SIGNAL, AND APPARATUS THEREFOR - The present invention relates to a wireless communication system. Specifically, a method for transmitting an uplink signal in a wireless communication system supporting carrier aggregation includes the steps of: setting a first cell of a first time division duplex (TDD) uplink (UL)-downlink (DL) configuration, and a second cell of a second TDD UL-DL configuration; receiving data over a DL subframe of the first cell; and transmitting a control signal over a UL subframe of the second cell in response to the received data, wherein a relationship of the DL subframe and UL subframe is determined by parameter values set in a specific TDD UL-DL configuration in a TDD WL-DL configuration set, the specific TDD UL-DL configuration has the minimum number of DL subframes from among one or more of TDD UL-DL configurations in which subframes set as a DL or X are all set as the DL in the first cell or the second cell, the subframes set as X have different subframe directions in the first cell and the second cell at a corresponding subframe timing, and the uses thereof are limited in either the first cell or the second cell. | 04-03-2014 |
20140092856 | METHOD FOR TRANSMITTING CONTROL INFORMATION AND APPARATUS FOR SAME - The present invention relates to a wireless communication system. More particularly, the present invention relates to a method for transmitting uplink channel state information (CSI) in a wireless communication system that supports carrier aggregation, and to an apparatus for the method. The method for reporting CSI in a wireless communication system that supports carrier aggregation comprises the steps of: configuring a plurality of downlink component carriers (DL CCs); setting a CSI report mode on the plurality of DL CCs for each DL CC; and performing an operation for transmitting CSI according to the CSI report mode set on each DL CC. If a P-number of CSI overlap in the same subframe and a first condition is satisfied, a Q-number of CSI among the P-number of CSI are transmitted through a first physical channel, and if the P-number of SCI overlap in the same subframe and a second condition is satisfied, only an R-number of CSI among the P-number of CSI are transmitted through a second physical channel which is different from the first physical channel, wherein R is smaller than Q. | 04-03-2014 |
20140105076 | METHOD FOR TRANSMITTING CONTROL INFORMATION AND APPARATUS THEREFOR - The present invention relates to a wireless communication system. In more detail, the present invention relates to a method and device for transmitting uplink control information in a wireless communication system that supports carrier merging and operates in TDD, and the method comprises the following steps: receiving at least one or more than one PDCCH and more than one PDSCH from a plurality of downlink sub frames according to a UL-DL configuration: determining a bit number of reception response information on the at least one of more than one PDCCH and more than one PDSCH by using a value indicated by a predetermined 2-bit field in a DCI format for UL scheduling; and transmitting the reception response information through PUSCH corresponding to the DIC format. | 04-17-2014 |
20140105154 | METHOD FOR ALLOCATING A CONTROL CHANNEL AND APPARATUS THEREFOR - The present invention relates to a wireless communication system. More particularly, the present invention relates to a method in which a terminal performs a process for determining a control channel allocation for a control channel, and to an apparatus for the method. The method comprises the steps of: monitoring, on a specific carrier, a common search space including a control channel candidate set for the control channel; and monitoring, on the specific carrier, a terminal-specific search space including the control channel candidate set for the control channel. In cases where the terminal is set to monitor a plurality of control channel candidates having the same radio network temporary identifier (RNTI), same information size, same first control channel resource, and same control channel resource aggregation level in the common search space and the terminal-specific search space, the control channel candidate that satisfies the above conditions is received only in the common search space. | 04-17-2014 |
20140105157 | METHOD AND APPARATUS FOR TRANSMITTING CONTROL INFORMATION IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a wireless communication system. More particularly, in a method for receiving a downlink signal in a wireless communication system and an apparatus for same, the present invention relates to a method and an apparatus for same, comprising the steps of: receiving a subframe including a plurality of OFDM symbols; monitoring a plurality of search spaces which are configured on the subframe, so as to receive a PDCCH which is indicated to a terminal; and performing an operation in accordance with a PDCCH which is detected when the PDCCH that is indicated to the terminal is detected, wherein each of the search spaces is configured on a first resource region and/or a second resource region, in accordance with a predetermined condition, and the first resource region and the second resource region are separated with a specific OFDM symbol as a boundary on a time domain. | 04-17-2014 |
20140105191 | METHOD OF TRANSMITTING CONTROL INFORMATION AND DEVICE FOR SAME - The present invention relates to a wireless communication system. In more detail, a method for performing HARQ (hybrid automatic repeat request) retransmission by a communication device in a wireless communication system, the method comprising: initially transmitting a data block to a Base Station (BS); attempting PDCCH (physical downlink control channel detection) in a predetermined time interval including a plurality of subframes after transmission of an uplink channel signal; and retransmitting the data block when a PDCCH signal indicating retransmission of the data block is detected in the predetermined time interval, wherein reception of a PHICH (physical hybrid ARQ indicator channel) corresponding to initial transmission of the data block is skipped. | 04-17-2014 |
20140112277 | METHOD FOR CONFIGURING RESOURCE FOR CARRIER AGGREGATION AND APPARATUS FOR SAME - The present invention relates to a wireless communication system. More particularly, the present invention related to a method for performing communication on a specific single secondary cell (SCell) in a wireless communication system supporting carrier aggregation and to an apparatus for same, wherein the method comprises the following steps: receiving setting information on a plurality of frequency zones comprising the specific single SCell, wherein the plurality of frequency zones include at least one available frequency zone and at least zone unavailable frequency zone; and performing the communication from the specific single SCell, wherein a signal for the communication is transmitted and received only within the at least one available frequency from the specific single SCell. | 04-24-2014 |
20140119313 | METHOD FOR TRANSMITTING AND RECEIVING UPLINK SIGNAL, USER EQUIPMENT, AND BASE STATION - The present invention categorizes a plurality of cells that are configured to a user equipment into at least one cell group, and configures an anchor cell for each of the cell groups. The anchor cell for each of the cell groups is used for transmitting a PUCCH, which carries uplink control information on a pertinent cell group, and in a random access process for acquiring a timing advance with respect to the pertinent cell group. When the uplink control information is transmitted from a PUSCH of one cell, the PUSCH carries only the uplink control information on the cell group to which the one cell belongs and does not carry information on another cell group. | 05-01-2014 |
20140119339 | METHOD FOR CONTROLLING ERROR FOR CARRIER AGGREGATION AND APPARATUS FOR SAME - The present invention relates to a wireless communication system. More particularly, the present invention relates to a method for carrying out a hybrid automatic repeat request (HARQ) process when a plurality of cells are configured, comprising the following steps: receiving scheduling information for transmitting data from a first cell; operating a first HARQ process from the first cell based on the scheduling information; and relaying an operation of the first HARQ process to a second HARQ process of a second cell which is different from the first cell, when a predetermined condition is satisfied. | 05-01-2014 |
20140126433 | METHOD FOR TRANSMITTING CONTROL INFORMATION AND APPARATUS FOR SAME - The present invention relates to a wireless communication system. More particularly, the present invention relates to a method and an apparatus for transmitting uplink control information in the wireless communication system, which supports carrier aggregation and operates by a TDD, and comprises the steps of: receiving periodic information for reporting CSI; generating A/N information with respect to at least one cell from a plurality of cells to transmit from an uplink subframe n; and performing an action for transmitting the CSI information from the uplink subframe n according to the periodic information, wherein the CSI information and the A/N information are transmitted from the uplink subframe n through the same physical channel when a specific condition is satisfied, and only the A/N information is transmitted from the uplink subframe n when the specific condition is not satisfied, wherein the specific condition is Mp=0, and the A/N information comprising only A/N with respect to a first piece of specific downlink data that is received through a specific SCell, wherein the Mp expresses the number of downlink subframes that corresponds to the uplink subframe n with respect to a PCell. | 05-08-2014 |
20140133430 | METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING UPLINK SIGNAL, AND METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING DOWNLINK SIGNAL - The present invention provides a method for scheduling an uplink and a method for scheduling a downlink for a user equipment group comprising a plurality of user equipments in similar channel situations. In the present invention, which relates to the method for scheduling the uplink, a primary user equipment for a user equipment group is configured, and information according to a random access procedure that is performed by the primary user equipment is shared by means of other user equipments in the user equipment group. In the present invention, which relates to the method for scheduling the downlink, each of the user equipment in the user equipment group attempt to detect downlink data by a random access preamble transmission timing, and transmits a pertinent random access preamble to a base station at the random access preamble transmission timing, thereby notifying the base station of a failure to receive the downlink data, when the detection of the downlink data by the random access preamble transmission timing fails. | 05-15-2014 |
20140161084 | DOWNLINK SIGNAL RECEIVING METHOD AND USER EQUIPMENT, AND DOWNLINK SIGNAL TRANSMITTING METHOD AND BASE STATION - According to the present invention, one or more PDCCH-SFs are set from among subframes in a predetermined duration so as to force user equipment (UE) to perform a PDCCH blind decoding (BD). Information indicating said set PDCCH-SF is provided to the UE from a base station (BS). The UE performs the PDCCH BD only in the PDCCH-SF which is set to the UE itself, and not to all subframes, and performs HARQ process(es) according to the PDCCH BD. The present invention exhibits the advantages of reducing the number of BDs which the UE has to perform and of reducing the implementation complexity of the UE. | 06-12-2014 |
20140169242 | METHOD FOR TRANSMITTING CONTROL INFORMATION AND APPARATUS FOR SAME - The present invention relates to a wireless communication system. More particularly, the present invention relates to a method for transmitting uplink control information in a wireless communication system that supports carrier aggregation and operates in a time division duplex (TDD) scheme, the method comprising a step of transmitting a hybrid automatic repeat request-acknowledgement (HARQ-ACK) for each component carrier (CC) according to a specific parameter; wherein if the specific parameter is smaller than a specific value, the HARQ-ACK for each CC is individually transmitted, and if the specific parameter is equal to or larger than the specific value, the HARQ-ACK for each CC is transmitted using the specific number of bit values corresponding to said HARQ-ACK. The present invention also relates to an apparatus for the method. | 06-19-2014 |
20140169297 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING MCS INDEX FOR 256QAM IN WIRELESS ACCESS SYSTEM - A method and apparatus for transmitting and receiving an MCS index for 256 QAM in a wireless access system are disclosed, which relate to methods for transmitting and receiving a Modulation and Coding Scheme (MCS) index supporting a 256 Quadrature Amplitude Modulation (QAM) scheme and apparatuses for supporting the same. The method for receiving a Modulation and Coding Scheme (MCS) index for 256 QAM (Quadrature Amplitude Modulation) in a wireless access system includes: receiving, by a user equipment (UE), a message including a 256 QAM indicator indicating use of a 256 QAM scheme; and receiving a physical downlink control channel (PDCCH) signal including the MCS index, wherein the UE obtains a modulation order and a Transport Block Size (TBS) index depending upon the MCS index for the 256 QAM scheme | 06-19-2014 |
20140169300 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING CHANNEL STATUS INFORMATION (CSI) FOR SUPPORTING 256QAM IN WIRELESS ACCESS SYSTEM - A method and apparatus for transmitting and receiving channel status information (CSI) for supporting 256QAM in a wireless access system are disclosed. A method for transmitting a Channel Quality Indication (CQI) index for 256QAM (Quadrature Amplitude Modulation) in a wireless access system includes: receiving, by a user equipment (UE), a message including a 256QAM indicator indicating use of a 256QAM scheme; performing channel measurement of a downlink channel through which downlink data is transmitted; and transmitting a CQI index in response to the channel measurement result to a base station (BS), wherein the UE simultaneously manages a first CQI feedback table for supporting a legacy modulation scheme and a second CQI feedback table for supporting the 256QAM scheme. | 06-19-2014 |
20140169319 | METHOD FOR TRANSMITTING UPLINK SIGNAL, USER EQUIPMENT, METHOD FOR RECEIVING UPLINK SIGNAL, AND BASE STATION - The present invention provides a method for a user equipment, which is included in a user equipment group that comprises a plurality of user equipments, transmitting to a base station an Acknowledgement/Negative ACK (ACK/NACK) signal with respect to downlink data that is received from the base station. The base station, according to the present invention, quasi-statically sets physical uplink control channel (PUCCH) resource identification information, which would be used by each of the plurality of user equipments, and dynamically allocates to the user equipment group a collection of PUCCH resources usable for transmitting ACK/NACK of the user equipment group. The user equipment, according to the present invention, transmits the ACK/NACK signal to the base station by using the PUCCH resource that is allocated to the user equipment from the collection of the PUCCH resources, which are dynamically allocated to the user equipment group, based on the PUCCH resource identification information that is quasi-statically allocated to the user equipment. | 06-19-2014 |
20140177488 | METHOD FOR USER EQUIPMENT TRANSRECEIVING SIGNAL IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a method for receiving a signal between a user equipment and a base station in a wireless communication system, and to an apparatus for same. More particularly, a method for the user equipment receiving the signal in the wireless communication system, which is operated by a time division duplex (TDD), comprises the steps of: confirming a subframe which is reconfigured as a downlink, from a plurality of subframes that are configured according to a TDD uplink-downlink configuration; and receiving the signal from the subframe, which is reconfigured, wherein an index of the last orthogonal frequency division multiplexing (OFDM) symbol, from which the signal can be received, is decided in the subframe that is reconfigured. | 06-26-2014 |
20140192688 | METHOD FOR TRANSMITTING CONTROL INFORMATION AND APPARATUS FOR SAME - The present invention relates to a wireless communication system. More particularly, the present invention relates to a method and an apparatus for transmitting uplink control information in the wireless communication system, which supports carrier aggregation and operates by a TDD, and comprises the steps of: deciding HARQ-ACK bit numbers for each cell from a plurality of cells; composing a HARQ-ACK payload comprising HARQ-ACK bit(s) for each of the plurality of cells; and transmitting the HARQ-ACK payload from a subframe n through a PUSCH. | 07-10-2014 |
20140198756 | METHOD AND APPARATUS FOR ALLOCATION OF DISCONTINUOUS UPLINK RESOURCE - The present invention relates to a wireless communication system. More particularly, the present invention relates to a method and apparatus for transmitting an uplink signal in a wireless communication system, wherein the method for transmitting an uplink signal in a wireless communication system comprises: a step of receiving a control channel signal containing resource allocation information; and a step of transmitting an uplink signal in accordance with the control channel signal, wherein the resource allocation information has a combination index r to be used for indicating two sets of resource blocks, and each set of resource blocks includes one or more continuous resource blocks. | 07-17-2014 |
20140204813 | METHOD AND APPARATUS FOR TRANSCEIVING SIGNALS - The present invention relates to a wireless communication system. More particularly, the present invention relates to a method and to an apparatus for the method, wherein the method is configured such that a base station, in which cross-carrier scheduling through a first component carrier (CC) is set, transmits a downlink signal in a TDD wireless communication system in which the first CC and a second CC are aggregated, wherein the method comprises a step of transmitting a control channel signal during a specific subframe timing during which the second CC is set as a downlink. The transmitting step involves transmitting the control channel signal through a control channel region of the first CC when the first CC is set as a downlink in the specific subframe timing, and transmitting the control channel signal through a control channel region of the second CC when the first CC is set as an uplink during the specific subframe timing. | 07-24-2014 |
20140204879 | METHOD AND DEVICE FOR UPLINK RESOURCE ALLOCATION - A method for transmitting an uplink signal by a device in a wireless communication system, the method including receiving a control channel signal including a resource allocation (RA) field; and transmitting an uplink signal according to the control channel signal. A size of the RA field is represented by the following expression MAX (RASizeA, RASizeB). RASizeA is a first number of bits for indicating a resource indication value (RIV) corresponding to a starting resource block (RB) and a length of contiguously allocated RBs. RASizeB is a second number of bits for indicating a combinatorial index r corresponding to 4 indexes, and the 4 indexes are used to indicate a start resource block group (RBG) index and an end RBG index of a first RB set and a start RBG index and an end RBG index of a second RB set. | 07-24-2014 |
20140241222 | METHOD AND APPARATUS FOR TRANSMITTING CONTROL INFORMATION IN A WIRELESS COMMUNICATION SYSTEM - The present invention relates to a wireless communication system. More particularly, the present invention relates to a method in which a terminal performs communication in a TDD-based wireless communication system having a plurality of CCs aggregated therein, the method comprising: a step of performing an uplink transmission or a downlink reception in each subframe on a first CC according to a first UL-DL configuration; and a step of performing an uplink transmission or a downlink reception in each subframe on a second CC according to a second UL-DL configuration. If the configuration of the subframe of the first CC is [U, D] and the configuration of the subframe of the second CC is [U, U] in subframes #k and #k+1, the subframe #k+1 of the second CC is set to X. The present invention also relates to an apparatus for the method. | 08-28-2014 |
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 |
20140313950 | METHOD FOR TRANSMITTING CONTROL INFORMATION AND APPARATUS THEREFOR - A method and device for transmitting uplink control information in a wireless communication system supporting carrier aggregation and operating in TDD are discussed. The method includes transmitting hybrid automatic repeat request acknowledgements (HARQ-ACKs) feedback bits o(0),o(1),o(2),o(3) on a physical uplink shared channel (PUSCH), wherein the HARQ-ACKs feedback bits corresponds to HARQ-ACK(0), HARQ-ACK(1), HARQ-ACK(2), and HARQ-ACK(3) associated with a first component carrier (CC) and HARQ-ACK(0), HARQ-ACK(1), HARQ-ACK(2), and HARQ-ACK(3) associated with a second CC. | 10-23-2014 |
20140328292 | METHOD AND APPARATUS FOR TRANSMITTING CONTROL INFORMATION IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a wireless communication system, particularly, a method in which a terminal transmits control information in a CA-based wireless communication system and an apparatus for the method, the method comprising: configuring a first cell and a second cell having different subframe configurations, wherein the second cell has any one of UL-DL configuration #0 to #6; receiving a DC) format including a DAI field, for the second cell; and transmitting HARQ-ACK information relating to the downlink DCI format. For HARQ-ACK timing, in cases where a reference UL-DL configuration applied to the second cell is any one of UL-DL configurations #1 to #6, the DAI field is used in a process of transmitting the HARQ-ACK information. For HARQ-ACK timing, in cases where a reference UL-DL configuration applied to the second cell is #0, the DAI field is not used in a process of transmitting the HARQ-ACK information. | 11-06-2014 |
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 |
20140328332 | METHOD AND APPARATUS FOR TRANSMITTING CONTROL INFORMATION IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a wireless communication system. In particular, the present invention relates to a method and apparatus for transmitting control information by means of a terminal in a CA-based wireless communication system, including the steps of: forming first and second cells that include different subframe configurations, wherein the second cell includes TDD UL-DL configuration #0; receiving a UL grant by means of the first cell; and transmitting data corresponding to the UL grant by means of the second cell. | 11-06-2014 |
20140334357 | METHOD FOR TRANSMITTING/RECEIVING SIGNAL AND DEVICE THEREFOR - The present invention relates to a wireless communication system. More particularly, the present invention relates to a method and a device therefor, the method comprising: setting a first cell having a first TDD UL-DL configuration and a second cell having a second TDD UL-DL configuration; receiving data through a DL subframe of the first cell; and transmitting reception response information on the data through a UL subframe of the second cell, wherein the relationship between the DL subframe and the UL subframe is determined by a parameter value set in a specific TDD UL-DL configuration, which is the TDD UL-DL configuration having the least number of DL subframes from TDD UL-DL configuration(s), in which subframes set as a DL in the first or second cell are all set as DLs. | 11-13-2014 |
20140334358 | METHOD FOR TRANSMITTING/RECEIVING SIGNAL AND DEVICE THEREFOR - The present invention relates to a wireless communication system. More particularly, the present invention relates to a method and a device therefor, the method comprising: setting a first cell having a first TDD UL-DL configuration and a second cell having a second TDD UL-DL configuration; receiving data through a DL subframe of the first cell; and transmitting reception response information on the data through a UL subframe of the second cell, wherein the relationship between the DL subframe and the UL subframe is determined by a parameter value set in a specific TDD UL-DL configuration, which is the TDD UL-DL configuration having the least number of DL subframes from TDD UL-DL configuration(s), in which subframes set as a DL in the first or second cell are all set as DLs. | 11-13-2014 |
20140341094 | METHOD FOR TRANSMITTING/RECEIVING SIGNAL AND DEVICE THEREFOR - The present invention relates to a wireless communication system. More particularly, the present invention relates to a method for transmitting uplink control information and a device therefor, the method comprising the steps of: forming a plurality of serving cells each having different UL-DL configurations; receiving one or more signals requiring a HARQ-ACK response from M(M≧1) number of subframes; and executing the process for transmitting the HARQ-ACK response to the one or more signals in a specific subframe corresponding to the M number of subframes, wherein, only when the specific subframe is set as an uplink in all of the plurality of serving cells, the HARQ-ACK response to the one or more signals are transmitted through the specific subframe. | 11-20-2014 |
20140341095 | METHOD FOR TRANSMITTING/RECEIVING SIGNAL AND DEVICE THEREFOR - The present invention relates to a wireless communication system. More particularly, the present invention relates to a method for transmitting uplink control information and a device therefor, the method comprising the steps of: forming a plurality of serving cells each having different UL-DL configurations; receiving one or more signals requiring a HARQ-ACK response from M(M≧1) number of subframes; and executing the process for transmitting the HARQ-ACK response to the one or more signals in a specific subframe corresponding to the M number of subframes, wherein, only when the specific subframe is set as an uplink in all of the plurality of serving cells, the HARQ-ACK response to the one or more signals are transmitted through the specific subframe. | 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 |
20140355539 | METHOD AND APPARATUS FOR PERFORMING RANDOM ACCESS PROCESS IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a wireless communication system. In detail, the present invention is a method in which user equipment for which a plurality of cells is constituted receives control information in a carrier aggregation-based wireless communication system, and an apparatus for the method. The method comprises: a step of receiving, through a first cell, uplink resource allocation information for a second cell; a step of transmitting an uplink signal on the second cell using the uplink resource allocation information; and a step of receiving response information to the uplink signal. The response information is received via a specific cell rather than the first cell when the uplink signal is transmitted by a random access process, and the response information is received via the first cell when the uplink signal is transmitted by a non-random access process. | 12-04-2014 |
20140362747 | METHOD AND APPARATUS FOR TRANSMITTING CONTROL INFORMATION IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a wireless communication system. In particular, the present invention relates to a method and apparatus for transmitting control information by means of a terminal in a CA-based wireless communication system, including the steps of: forming first and second cells that include different subframe configurations, wherein the second cell includes TDD UL-DL configuration #0; receiving a UL grant by means of the first cell; and transmitting data corresponding to the UL grant by means of the second cell. | 12-11-2014 |
20140376421 | METHOD FOR TRANSMITTING CONTROL INFORMATION AND APPARATUS FOR SAME - The present invention relates to a wireless communication system. More particularly, the present invention relates to a method and an apparatus for transmitting uplink control information in the wireless communication system, which supports carrier aggregation and operates by a TDD, and comprises the steps of: generating a first HARQ-ACK set with respect to a first cell by using an L1 value; generating a second HARQ-ACK set with respect to a second cell by using an L2 value; and transmitting bit values, which correspond to the first and second HARQ-ACK sets are transmitted through a PUSCH from a subframe n, wherein L1=min (M1, W) and L2=min (M2, W) when the value (W) of a UL DAI corresponding to the PUSCH is 1 or 2, and L1=L2=W when the value (W) of the UL DAI corresponding to the PUSCH is 3 or 4, wherein min (A, B) represents a smaller number from A and B, M1 corresponds to the number of downlink subframes that correspond to an uplink subframe n with respect to the first cell, M2 corresponds to a the number of downlink subframes that correspond to the uplink subframe n with respect to the second cell, wherein the first cell and the second cell have different UL-DL configurations. | 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 |
20150016239 | METHOD AND APPARATUS FOR SETTING REFERENCE SIGNAL - Disclosed are a method and an apparatus for setting a reference signal. A wireless apparatus receives a primary synchronization signal (PSS) transmitted by a first orthogonal frequency division multiplexing (OFDM) symbol and a secondary synchronization signal (SSS) from a second OFDM symbol, and can search information for setting a reference signal on the basis of symbol numbers of the first OFDM symbol and the second OFDM symbol. Inter-cell interference can be reduced by means of a variety of methods for setting a reference signal. | 01-15-2015 |
20150016310 | METHOD AND DEVICE FOR TRANSMITTING DATA FOR HALF-DUPLEX DEVICE - A method for transmitting data for a half-duplex device in a wireless communication system is provided. The half-duplex device receives first downlink control information from a base station in a first subframe. The half-duplex device transmits uplink data to the base station in a second subframe. The first downlink control information includes a resource through which the uplink data is transmitted and information on the second subframe. | 01-15-2015 |
20150016315 | METHOD FOR TRANSRECEIVING SIGNALS AND APPARATUS FOR SAME - The present invention relates to a wireless communication system. More particularly, the present invention relates to a method for transmitting an uplink signal in a wireless communication system supporting carrier aggregation (CA), and to an apparatus for same, comprising the steps of: establishing a first cell having a first time division duplex (TDD) uplink-downlink (UL-DL) configuration and a second cell having a second TDD UL-DL configuration; receiving data through a DL subframe of the first cell; and transmitting reception reply information with respect to the data through a UL subframe of the second cell. | 01-15-2015 |
20150016339 | USER EQUIPMENT AND METHOD FOR RECEIVING SYNCHRONIZATION SIGNALS, AND BASE STATION AND METHOD FOR TRANSMITTING SYNCHRONIZATION SIGNALS - The present invention relates to a new type of carrier wave having a different configuration from existing carrier waves. The new type of carrier wave is detected by using at least one of a primary synchronization signal (PSS) and a secondary synchronization signal (SSS). When the new type of carrier wave is formed for detection by using only one of the PSS or the SSS, or by using both of the PSS and SSS, the new type of carrier wave includes PSS and SSS transmissions which are different from existing PSS and SSS transmissions. | 01-15-2015 |
20150016373 | METHOD AND APPARATUS FOR TRANSMITTING UPLINK CONTROL INFORMATION - A method for transmitting uplink control information and a wireless device are provided. The wireless device masks the cyclic redundancy check (CRC) of a first piece of uplink control information with a masking sequence related to a second piece uplink control information and transmits the masked first piece of uplink control information to an uplink channel. | 01-15-2015 |
20150016377 | METHOD AND APPARATUS FOR UPLINK TRANSMISSION - Disclosed are a method and an apparatus for uplink transmission. A method for uplink transmission for a machine-type communication (MTC) terminal comprises: a step of transmitting first uplink (UL) information via a first UL channel in a first terminal-specific frequency band of a first subframe; and a step of transmitting second UL information via a second UL channel in a second terminal-specific frequency band of a second subframe subsequent to the first subframe. The first subframe and the second subframe each include a plurality of orthogonal frequency division multiplexing (OFDM) symbols. If the first terminal-specific frequency band and the second terminal-specific frequency band do not overlap one another, the second UL information may not be transmitted in a first OFDM symbol of the second subframe. Thus, a wireless resource can be efficiently utilized. | 01-15-2015 |
20150036653 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING DATA - A method and apparatus of transmitting and receiving data is provided. A user equipment receives physical downlink shared channel data on a PDSCH in a second subframe from a second serving cell to the user equipment. The second serving cell is activated by the first serving cell, and the second serving cell does not map the PDSCH data to a second RE corresponding to a first resource element of the first subframe mapped with the CRS. The CRS is generated from a pseudo random sequence that is initiated by a cell identifier of the first serving cell and the PDSCH is indicated by an enhanced physical downlink shared channel of the second subframe, and the second RE of the second subframe and the first RE of the first subframe overlap in a time domain and in a frequency domain. | 02-05-2015 |
20150043458 | METHOD AND APPARATUS FOR TRANSMITTING PERIODIC CHANNEL STATE INFORMATION IN WIRELESS COMMUNICATION SYSTEM - Provided are a method for transmitting uplink control information by a user equipment in a wireless communication system, and a user equipment using the method. In the method, a setting of subframes for transmitting each of multiple types of periodic channel state information (CSI) is received, and the multiple types of the periodic CSI from the subframes are transmitted, wherein when the multiple types of the CSI are set to include a rank indicator (RI) for indicating the number of layers recommended by the user equipment, and the RI and a different periodic CSI excluding the RI are set to be transmitted from the same subframe, the RI and the different periodic CSI are multiplexed to the same subframe and then transmitted. | 02-12-2015 |
20150043462 | METHOD AND APPARATUS FOR TRANSMITTING CONTROL INFORMATION - A method and an apparatus for transmitting uplink control information in a wireless communication system are provided. A first Reed-Muller (RM) encoder encodes first uplink control information on the basis of a first RM basis, and a second RM encoder encoded second uplink control information on the basis of a second RM basis. | 02-12-2015 |
20150043470 | METHOD AND APPARATUS FOR TRANSMITTING UPLINK CONTROL INFORMATION - Provided is a method and an apparatus for transmitting uplink control information in a wireless communication system. A wireless device determines the number of a plurality of Reed-Muller (RM) encoders based on the number of bits of a bit sequence indicating uplink control information, and divides the bit sequence based on the determined number of the plurality of RM encoders to generate a plurality of sub-sequences. The wireless device inputs the plurality of sub-sequences into the respective plurality of RM encoders to generate a coded sequence, maps the coded sequence according to a modulation method to generate a plurality of modulated symbols, and transmits the plurality of modulated symbols on an uplink channel. | 02-12-2015 |
20150049687 | METHOD AND APPARATUS FOR COMMUNICATING BY USING DIFFERENT TYPES OF CARRIERS IN RADIO COMMUNICATION SYSTEM SUPPORTING CARRIER AGGREGATION - Provided through the present application are a method and an apparatus for use in a radio communication system, which supports carrier aggregation and carries out communication in subframe units. More specifically, user equipment operating in a first type carrier for receiving from a base station, a first piece of control information, which is related to the first type carrier and a second type carrier that support the carrier aggregation, can measure a radio signal to carry out radio resource management with respect to the first type carrier by using a first reference signal, which is included in the first type carrier, and/or a second reference signal, which is included in the second type carrier. | 02-19-2015 |
20150055521 | METHOD AND DEVICE FOR AGGREGATING CARRIERS IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a method and a device for aggregating carriers in a wireless communication system. In the method, a first carrier is configured, and a second carrier is configured in addition to the first carrier. The first carrier is a time division duplex (TDD) carrier for which an uplink subframe and a downlink subframe are positioned at different times in a frame, and the second carrier is a carrier only for an uplink, which consists of uplink subframes. | 02-26-2015 |
20150055574 | METHOD AND APPARATUS FOR TRANSMITTING REFERENCE SIGNAL - Disclosed are a method and an apparatus for transmitting a reference signal. The method for transmitting the reference signal comprises the step of: transmitting a secondary synchronization signal (SSS) and a primary synchronization signal (PSS) from a subframe including an N (natural number wherein N>1) number of resource blocks (RB) and a plurality of orthogonal frequency division multiplexing (OFDM) symbols; and transmitting from the subframe the reference signal which is generated on the basis of a cell identifier, wherein the reference signal can be transmitted from an M (natural number wherein K<=M02-26-2015 | |
20150055606 | METHOD FOR TRANSMITTING CONTROL INFORMATION AND APPARATUS THEREFOR - A method for transmitting uplink control information. The method according to an embodiment includes identifying a Hybrid Automatic Repeat reQuest—Acknowledgement (HARQ-ACK)(0) and a HARQ-ACK(1), and transmitting b(0)b(1) using a PUCCH resource among a plurality of PUCCH resources based on the HARQ-ACK(0) and the HARQ-ACK(1). a Physical Downlink Control Channel (PDCCH) on the primary cell. | 02-26-2015 |
20150063140 | METHOD FOR MEASURING CHANNEL USING TRACKING REFERENCE SIGNAL IN WIRELESS COMMUNICATION SYSTEM AND DEVICE USING SAME - A method for measuring a channel in a wireless communication system is provided. A terminal receives a first reference signal from a primary cell. The terminal receives a second reference signal from a secondary cell corresponding to the primary cell. The terminal measures a channel for the secondary cell on the basis of the second reference signal. A subframe in which the second reference signal is received is signaled from the primary cell. | 03-05-2015 |
20150063179 | METHOD FOR TRANSMITTING CONTROL INFORMATION AND APPARATUS THEREFOR - A method and a communication device are described for transmitting uplink control information in a wireless communication system supporting carrier aggregation. At least one of a plurality of physical downlink control channels (PDCCHs) indicating downlink semi-persistent scheduling (SPS) release or physical downlink shared channels (PDSCHs) is received in a plurality of downlink subframes according to an uplink (UL) downlink (DL) configuration for time division duplex (TDD). A PDCCH with a downlink control information (DCI) format for UL scheduling including a 2-bit field is received. Acknowledgement (ACK)/negative acknowledgement (NACK) information corresponding to the at least one PDCCH indicating downlink SPS release or the PDSCHs is transmitted through a physical uplink shared channel (PUSCH) based on the received PDCCH with the DCI format for UL scheduling. | 03-05-2015 |
20150071099 | Method and Apparatus for Receiving Downlink Data in Wireless Communication System - Provided is a method for receiving downlink data in a wireless communication system. User equipment (UE) receives downlink control information in a first subframe from a primary cell. The user equipment receives downlink data from a secondary cell in a second subframe over a physical downlink shared channel (PDSCH). The user equipment determines a transmission block size in accordance with the type of the carrier of the second subframe. The user equipment decodes the PDSCH on the basis of the downlink control information and the transmission block size. | 03-12-2015 |
20150071206 | METHOD AND APPARATUS FOR TRANSMITTING SOUNDING REFERENCE SIGNALS IN WIRELESS COMMUNICATION SYSTEMS - The present invention relates to a method and apparatus for transmitting sounding reference signals in wireless communication systems. The method includes the steps of: receiving sounding reference signal (SRS) setting information indicating an SRS transmitting scheme for an uplink carrier; and transmitting the SRS in the SRS transmitting scheme determined on the basis of the SRS setting information, wherein the SRS transmitting scheme is intended for transmitting the SRS in all of the bands of the uplink carrier, or in some of the bands of the uplink carrier. | 03-12-2015 |
20150078222 | SIGNAL-TRANSCEIVING METHOD, AND APPARATUS THEREFOR - The present invention relates to a wireless communication system. More particularly, the present invention relates to a method and apparatus for transmitting an uplink signal in a time division duplex (TDD)-based wireless communication system. The method comprises the steps of receiving scheduling information for data transmission in a first uplink subframe, and transmitting uplink data based on the scheduling information. The uplink data transmission period includes the first uplink subframe, and further includes, if the second subframe immediately before the first uplink subframe is a subframe including a downlink period, a guard period and an uplink period, and if a predetermined condition is satisfied, an uplink period of a second subframe. | 03-19-2015 |
20150078225 | METHOD AND APPARATUS FOR TRANSMITTING CONTROL INFORMATION - A method is described for transmitting uplink control information at a communication apparatus configured with a plurality of cells including a Primary Cell (PCell) and a Secondary Cell (SCell) in a wireless communication system operating in a Time Division Duplex (TDD) mode. One or more downlink signals requiring Hybrid Automatic Repeat reQuest Acknowledgement (HARQ-ACK) feedback are received in a set of subframes. Reception response information about the one or more downlink signals is transmitted through a Physical Uplink Control CHannel (PUCCH) on a subframe configured for Scheduling Request (SR) transmission. When a predetermined condition is not satisfied, the reception response information and SR information are multiplexed and transmitted using a first HARQ-ACK PUCCH resource. When the predetermined condition is satisfied, for a positive SR, the reception response information includes information about an ACK count for the one or more downlink signals and is transmitted using a SR PUCCH resource. | 03-19-2015 |
20150078285 | METHOD AND APPARATUS FOR RECEIVING DOWNLINK DATA IN A WIRELESS COMMUNICATION SYSTEM - A method for receiving downlink data in a wireless communication system is provided. A user equipment receives downlink control information via a downlink control channel in a subframe. The downlink control information includes reference signal (RS) information and physical downlink shared channel (PDSCH) information. The RS information indicates transmission antenna ports, a scrambling identity and a number of transmission layers. The user equipment receives a RS for demodulating a PDSCH based on the RS information in the subframe. The RS is generated based on the scrambling identity. The user equipment receives downlink data via the PDSCH in the subframe. Resource element (RE) mapping information on REs assigned for the PDSCH is determined based on the PDSCH information. | 03-19-2015 |
20150085782 | METHOD AND APPARATUS FOR MAKING HARQS IN CARRIER AGGREGATION SYSTEMS - The present invention relates to a method and system for making a hybrid automatic repeat requests (HARQ) in a carrier aggregation system. The method receives downlink data through a first subframe of a first carrier, transmits acknowledgement/negative-acknowledgement (ACK/NACK) for the downlink data through a second subframe of a second carrier, and re-receives the downlink data through a third subframe of the first carrier, wherein the first carrier only includes the downlink subframes, and the second carrier includes the uplink subframes and the downlink subframes. | 03-26-2015 |
20150085785 | DATA TRANSMISSION METHOD AND DATA TRANSMISSION DEVICE - A data transmission method and a data transmission device are disclosed. A method for receiving control data by a terminal can comprise the steps of demodulating downlink control information (DCI) including an assignment flag and downlink (DL) resource allocation; and demodulating physical downlink shared channel (PDSCH) data by using the DL resource allocation, wherein when the PDSCH data is demodulated on the basis of a demodulation reference signal (DM-RS), the assignment flag indicates information on a reference signal (RS) used for the demodulation of the PDSCH data or information on a PDSCH transmission antenna port. | 03-26-2015 |