Patent application number | Description | Published |
20090125774 | METHOD OF DATA TRANSMISSION USING HARQ - A method of transmitting data from a user terminal to a base station using a hybrid automatic repeat request (HARQ) scheme with a plurality of redundancy versions of said data, each of the redundancy versions (RV) indicating a transmission start position of a data block in a circular buffer is disclosed. For each retransmission, the redundancy version to be used by considering the previously used redundancy version and a predetermined sequence is determined. Within one sequence, at least two redundancy versions following each other have non consecutive start positions. | 05-14-2009 |
20090204863 | METHOD AND APPARATUS FOR SUPPORTING HARQ - A method of supporting Hybrid Automatic Repeat Request (HARQ) includes receiving an initial uplink grant on a downlink channel, transmitting uplink data on an uplink channel using the initial uplink grant, receiving a request for retransmission of the uplink data, determining at least one transmission parameter of a channel quality indicator (CQI) from the initial uplink grant, multiplexing retransmission data of the uplink data with the CQI, and transmitting the multiplexed data on the uplink channel. Amount of resources for transmission of the CQI is determined based on the at least one transmission parameter. | 08-13-2009 |
20090290538 | METHOD OF TRANSMITTING CONTROL SIGNAL IN WIRELESS COMMUNICATION SYSTEM - A method of transmitting a control signal in a wireless communication system is provided. The method includes acquiring a resource index, the number of cyclic shifts (CSs) and a CS interval, wherein the number of CSs is an integer multiple of the CS interval, determining a CS index based on the number of CSs and the CS interval, generating a cyclically shifted sequence by cyclically shifting a base sequence by a CS amount obtained from the CS index, generating a modulated sequence based on the cyclically shifted sequence and a symbol for a control signal and transmitting the modulated sequence after mapping the modulated sequence to a resource block obtained from the resource index. | 11-26-2009 |
20100067479 | METHOD FOR ALLOCATING RESOURCE, AND METHOD FOR TRANSMITTING RESOURCE ALLOCATION INFORMATION - A resource allocation method and a resource allocation information transmission method are provided. Smallest units of resource allocation are set as basic resource blocks and groups of a specific number of basic resource blocks are set as group resource blocks. Resources can be allocated in units of basic resource blocks or in units of group resource blocks depending on the amount of resources required for data transmission of each UE. Resource allocation information for allocation in units of basic resource blocks is set to be different from resource allocation information for allocation in units of group resource blocks, thereby achieving efficient allocation of communication resources. | 03-18-2010 |
20100077274 | Hybrid automatic repeat request and channel information feedback for relay - Operations of a relay are disclosed. To perform a hybrid automatic repeat request (HARQ), the relay receives a plurality of codewords from a base station and transmits a status indicator with respect to the plurality of codewords to the base station. The status indicator is a signal informing the base station about whether or not the configuration of an HARQ has been changed. Although a backhaul link and an access link are asymmetric, HARQ operation can be achieved. | 03-25-2010 |
20100103860 | Method of operating relay station in wireless communication system - A method of operating a relay station in a wireless communication system is provided. The method includes operating in a first mode comprising a first sub-mode and a second sub-mode, in the first sub-mode a first downlink and a first uplink between a base station and the relay station being simultaneously activated, in the second sub-mode a second downlink and a second uplink between the relay station and a mobile station being simultaneously activated, and operating in a second mode comprising a third sub-mode and a fourth sub-mode, in the third sub-mode the first downlink and the second uplink being simultaneously activated, in the fourth sub-mode the first uplink and the second downlink being simultaneously activated. | 04-29-2010 |
20100113085 | METHOD FOR EFFECTIVELY TRANSMITTING SYNCHRONIZATION CHANNEL AND METHOD FOR ALLOCATING TRANSMISSION POWER FOR THE SAME - A method for effectively allocating a transmission power and a method for transmitting SCH are disclosed. In this case, the transmission power of the SCH, which is important for initial cell search of the user equipment, is increased but is not allocated to a predetermined frequency region within one OFDM symbol to obtain the increased transmission power, thereby minimizing an influence on transmission of other channels within one OFDM symbol. | 05-06-2010 |
20100135273 | METHOD OF TRANSMITTING SOUNDING REFERENCE SIGNAL IN WIRELESS COMMUNICATION SYSTEM - A method of transmitting a sounding reference signal includes generating a physical uplink control channel (PUCCH) carrying uplink control information on a subframe, the subframe comprising a plurality of SC-FDMA(single carrier-frequency division multiple access) symbols, wherein the uplink control information is punctured on one SC-FDMA symbol in the subframe, and transmitting simultaneously the uplink control information on the PUCCH and a sounding reference signal on the punctured SC-FDMA symbol. The uplink control information and the sounding reference signal can be simultaneously transmitted without affecting a single carrier characteristic. | 06-03-2010 |
20100195594 | METHOD FOR TRANSMITTING CODEWORDS IN MULTIPLE INPUT MULTIPLE OUTPUT SYSTEM - A method for effectively transmitting/receiving a codeword in a MIMO system is disclosed. In a system including a plurality of predetermined rank structures, a reception end transmits rank information (RI), precoding matrix index (PMI), and channel quality information (CQI) of each codeword to a transmission end. The transmission end selects a rank structure on the basis of information received from the reception end. The transmission end selects only some codeword blocks among a plurality of codeword blocks available for the selected rank structure, transmits signals via the selected codeword blocks, and transmits a null signal for the non-selected codeword blocks. | 08-05-2010 |
20100211840 | METHOD FOR RETRANSMITTING IN THE MULTI-CARRIERS SYSTEM - A method for reducing retransmission overhead in a system based on the asynchronous channel-adaptive retransmission scheme is disclosed. If the possibility of performing data retransmission is high, the system provides a method for transmitting synchronous duration (SD) information. According to the method for transmitting the SD information, the system does not transmit scheduling information whenever receiving a retransmission request, and synchronously transmits data during a predetermined synchronous duration. Namely, the data can be retransmitted without using the scheduling information. | 08-19-2010 |
20100215114 | METHOD FOR TRANSMITTING SOUNDING REFERENCE SIGNAL IN MIMO WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR - A method for transmitting a sounding reference signal in a MIMO wireless communication system and an apparatus therefor are disclosed. The method for transmitting sounding reference signals (SRSs) in a MIMO wireless communication system comprises receiving sounding reference signal parameters from a base station; receiving information of the number of sounding reference signals which will be transmitted at a transmission time instant from the base station; if a plurality of sounding reference signals are provided, generating the sounding reference signals corresponding to each of the plurality of antennas by using the sounding reference signal parameters; and transmitting the generated sounding reference signals to the base station through their corresponding antennas at a specific transmission instant. | 08-26-2010 |
20110080968 | METHOD FOR TRANSMITTING CHANNEL QUALITY INFORMATION IN A MULTIPLE INPUT MULTIPLE OUTPUT SYSTEM - A method for transmitting a CQI in a MIMO system is disclosed. A method for allowing a receiver to feed back a CQI value to a transmitter in a Multiple Input Multiple Output (MIMO) system includes, receiving a transmission (Tx) pilot signal for each Tx antenna from a base station (BS), measuring a first CQI value of a first codeword and a second CQI value of a second codeword on the basis of the pilot signal, and transmitting the first CQI value of the first codeword and the second CQI value of the second codeword to the base station (BS), wherein at least one of the first and second CQI values includes specific information capable of indicating a transmission restriction status of a corresponding codeword. | 04-07-2011 |
20110194551 | METHOD AND APPARATUS FOR TRANSMITTING DOWNLINK REFERENCE SIGNAL IN WIRELESS COMMUNICATION SYSTEM SUPPORTING MULTIPLE ANTENNAS - A method and apparatus for transmitting a downlink reference signal in a wireless communication system supporting multiple antennas is disclosed. A method for transmitting Channel State Information-Reference Signals (CSI-RSs) for eight or less antenna ports includes selecting one of a plurality of CSI-RS Resource Element (RE) groups defined on a data region of a downlink subframe and mapping CSI-RSs for the eight or less antenna ports to the selected CSI-RS RE group, and transmitting the downlink subframe in which the CSI-RSs for the eight or less antenna ports are mapped. The plurality of CSI-RS RE groups is defined such that a transmission diversity RE pair for data transmitted on the downlink subframe is not broken. | 08-11-2011 |
20110244787 | METHOD AND APPARATUS FOR TRANSMITTING SCHEDULING REQUEST IN WIRELESS COMMUNICATION SYSTEM - A method of transmitting a scheduling request in a wireless communication system is provided. The method includes: transmitting a scheduling request signal by a relay station to a base station in a first subframe; and transmitting data by the relay station to the base station in a second subframe, wherein the scheduling request signal includes allocation information on the second subframe in which the data is transmitted. Accordingly, data can be effective transmitted between the relay station and the base station in the wireless communication system. | 10-06-2011 |
20110261716 | METHOD AND APPARATUS OF TRANSMITTING SOUNDING REFERENCE SIGNAL IN MULTIPLE ANTENNA SYSTEM - A method and an apparatus of transmitting a sounding reference signal by a user equipment is provided. A user equipment transmits a first sounding reference signal through a first antenna, and transmits a second sounding reference signal through a second antenna. Resources for transmitting the first sounding reference signal and the second sounding reference signal are partially different. | 10-27-2011 |
20110299614 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING SIGNAL FROM RELAY STATION IN RADIO COMMUNICATION SYSTEM - A method for a transmitting and receiving a signal from a relay station in a radio communication system is provided. The method comprises the steps of: receiving offset time information from a base station; configuring a time difference between an access downlink transmission subframe that transmits an access downlink signal to a relay station terminal according to the offset time information and a backhaul downlink reception subframe that receives a backhaul downlink signal from the base station; transmitting a control signal from the access downlink transmission subframe to the relay station terminal; and receiving the backhaul downlink signal from the base station in the backhaul downlink reception subframe. | 12-08-2011 |
20110310821 | METHOD AND APPARATUS FOR TRANSMITTING UPLINK CONTROL INFORMATION - A method of transmitting uplink control information of a user equipment in a wireless communication system is provided. The method includes: receiving reserved resource information that indicates a radio resource capable of transmitting the uplink control information; receiving a block subframe indicator that indicates a radio resource for transmitting a signal from a relay station to a base station; comparing a transmission-reserved subframe indicated by the reserved resource information with a block subframe indicated by the block subframe indicator; and transmitting the uplink control information in the transmission-reserved subframe if the transmission-reserved subframe does not overlap with the block subframe. | 12-22-2011 |
20120002593 | CONTROL SIGNAL TRANSMITTING METHOD AND APPARATUS IN RELAY STATION - A method of transmitting a control signal of a relay station is provided. The method includes: receiving a control signal and data from a base station in a first subframe; and transmitting an acknowledgement/negative acknowledgement (ACK/NACK) signal for the data to the base station in a second subframe, wherein a radio resource for transmitting the ACK/NACK signal is determined by a radio resource to which the control signal received in the first subframe is allocated and by a logical physical uplink control channel (PUCCH) index received by using a higher layer signal. | 01-05-2012 |
20120028665 | METHOD FOR SELECTING AN ADAPTIVE COMP SCHEME - Disclosed is a method for selecting an adaptive CoMP scheme for a user equipment. The user equipment selects a first CoMP set which can maximize a signal to interference-plus-noise ratio (SINR) from among CoMP sets while performing a first coordinate multi-point (CoMP) scheme. Then, the user equipment compares the current data transmission rate thereof and the required minimum data transmission rate thereof and the required minimum data transmission rate while performing the first CoMP scheme and selecting the first CoMP set. Subsequently, the user equipment which performs the first CoMP scheme selects a second CoMP scheme on the basis of the result of the comparison in accordance with a predetermined sequence of CoMP schemes. | 02-02-2012 |
20120044857 | SIGNAL TRANSMISSION METHOD PERFORMED BY RELAY STATION IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREOF - Disclosed is a signal transmission method performed by a relay station in a wireless communication system. The method comprises the steps of: arranging guard time within at least one symbol period in a subframe which is configured with multiple symbol periods in a time domain; and transmitting a control signal or data to a base station by using symbol periods except for the symbol periods which include the guard time in the subframe. The guard time is equal to or shorter than one symbol period. The structure in which the control signal or the data is arranged in each symbol period of the subframe is determined on the basis of the number of symbol periods except for the symbol periods which include the guard time. | 02-23-2012 |
20120069791 | METHOD AND APPARATUS FOR TRANSMITTING A SIGNAL IN A WIRELESS COMMUNICATION SYSTEM - A method for transmitting a signal in a wireless communication system is provided. The method includes: allocating a radio resource for transmitting a signal; and transmitting the signal to a destination station by using the radio resource, wherein the radio resource includes a plurality of symbols in a time domain, at least two symbols among the plurality of symbols include a guard time for switching transmission and reception of a signal, and the radio resource includes a partial symbol which is a radio resource other than the guard time in the symbol including the guard time. | 03-22-2012 |
20120069794 | METHOD AND APPARATUS IN WHICH A RELAY STATION TRANSMITS A SOUNDING REFERENCE SIGNAL - Provided is a method for transmitting a sounding reference signal (SRS) of a relay station. The method includes: receiving SRS parameters; allocating a radio resource by using the SRS parameters; and transmitting the SRS to a base station by using the radio resource, wherein the radio resource indicated by the SRS parameters includes a symbol in which a guard time for switching signal transmission and reception is located in a time domain. | 03-22-2012 |
20120069810 | METHOD FOR RECEIVING ACK/NACK SIGNAL IN MOBILE COMMUNICATION SYSTEM - A method for transmitting information of resources for use in transmission of ACK/NACK signals in a mobile communication system is disclosed. An example method for receiving ACK/NACK signals in a mobile communication system is also disclosed. When resources for transmission of data and resources for transmission of control information of the data are scheduled through virtual unit resources, the method identifies information of resources for receiving an ACK/NACK signal for transmission data mapped to information of at least one of a virtual unit resource allocated to the transmission data and a virtual unit resource allocated to control information of the transmission data, and receives the ACK/NACK signal for the transmission data through the information of resources for receiving the ACK/NACK signal. | 03-22-2012 |
20120076071 | METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING A SIGNAL IN A WIRELESS COMMUNICATION SYSTEM - A method of receiving a signal of a relay station in a wireless communication system is provided. The method includes: receiving backhaul resource allocation information from a base station; and receiving backhaul downlink data from the base station by using a radio resource indicated by the backhaul resource allocation information, wherein the radio resource includes a plurality of symbols in a time domain, and the plurality of symbols have boundaries which are shifted based on symbols included in a frequency band allocated to a macro user equipment, and wherein the radio resource includes a plurality of subcarriers in a frequency domain, and at least one subcarrier adjacent to the frequency band allocated to the macro user equipment among the plurality of subcarriers is set to a guard subcarrier in which the base station transmits no signal. | 03-29-2012 |
20120082112 | METHOD FOR RECEIVING ACK/NACK SIGNAL IN MOBILE COMMUNICATION SYSTEM - A method for transmitting information of resources for use in transmission of ACK/NACK signals in a mobile communication system is disclosed. An example method for receiving ACK/NACK signals in a mobile communication system is also disclosed. When resources for transmission of data and resources for transmission of control information of the data are scheduled through virtual unit resources, the method identifies information of resources for receiving an ACK/NACK signal for transmission data mapped to information of at least one of a virtual unit resource allocated to the transmission data and a virtual unit resource allocated to control information of the transmission data, and receives the ACK/NACK signal for the transmission data through the information of resources for receiving the ACK/NACK signal. | 04-05-2012 |
20120082113 | METHOD FOR RECEIVING ACK/NACK SIGNAL IN MOBILE COMMUNICATION SYSTEM - A method for transmitting information of resources for use in transmission of ACK/NACK signals in a mobile communication system is disclosed. An example method for receiving ACK/NACK signals in a mobile communication system is also disclosed. When resources for transmission of data and resources for transmission of control information of the data are scheduled through virtual unit resources, the method identifies information of resources for receiving an ACK/NACK signal for transmission data mapped to information of at least one of a virtual unit resource allocated to the transmission data and a virtual unit resource allocated to control information of the transmission data, and receives the ACK/NACK signal for the transmission data through the information of resources for receiving the ACK/NACK signal. | 04-05-2012 |
20120082117 | METHOD FOR TRANSMITTING UPLINK SIGNALS - A method for transmitting uplink signals, which include ACK/NACK signals, control signals other than the ACK/NACK signals, and data signals, is disclosed. The method comprises serially multiplexing the control signals and the data signals; sequentially mapping the multiplexed signals within a specific resource region in accordance with a time-first mapping method, the specific resource region including a plurality of symbols and a plurality of virtual subcarriers; and arranging the ACK/NACK signals at both symbols near symbols to which a reference signal of the plurality of symbols is transmitted. Thus, the uplink signals can be transmitted to improve receiving reliability of signals having high priority. | 04-05-2012 |
20120093082 | METHOD AND APPARATUS IN WHICH A RELAY STATION MAKES A HYBRID AUTOMATIC REPEAT REQUEST IN A MULTI-CARRIER SYSTEM - A method of performing a hybrid automatic repeat request (HARQ) of a relay station in a backhaul link of a multi-carrier system is provided. The method includes: receiving backhaul downlink data through at least one carrier between a first carrier and a second carrier; transmitting acknowledgement/not-acknowledgement (ACK/NACK) for the backhaul downlink data through an uplink component carrier; and receiving new backhaul downlink data or retransmitted backhaul downlink data in accordance with the transmitted ACK/NACK through at least one carrier between the first carrier and the second carrier, wherein the first carrier is a component carrier dedicated to the backhaul downlink between a base station and the relay station, and the second carrier is a component carrier used in both the backhaul downlink and an access downlink between the relay station and a relay user equipment at different times. | 04-19-2012 |
20120099519 | METHOD AND DEVICE FOR SIGNAL TRANSMISSION ON A WIRELESS COMMUNICATIONS SYSTEM - A method for signal transmission in a wireless communication system is provided. The method includes: transmitting backhaul resource allocation information by a base station to a relay node; decoding the backhaul resource allocation information by the relay node; and transmitting backhaul downlink control information and backhaul downlink data by the base station to the relay node, wherein a start position of a symbol for transmitting the backhaul downlink control information is fixed to a specific symbol of a backhaul link subframe, and the backhaul resource allocation information includes information on a radio resource for transmitting the backhaul downlink data. | 04-26-2012 |
20120134275 | APPARATUS AND METHOD FOR TRANSMITTING CHANNEL STATE INFORMATION IN A WIRELESS COMMUNICATION SYSTEM - An apparatus and method for transmitting channel state information in a wireless communication system are disclosed. The UE apparatus for transmitting channel state information includes a channel state measurement module for measuring a channel state based on a level of interference received from a neighbor cell, a channel state information generation module for generating channel state information for a plurality of resource regions or for periodic and aperiodic channel state information reporting modes using the measured channel state and offsets received from a serving BS, the offsets being set for the plurality of resource regions or the periodic and aperiodic channel state information reporting modes, and a transmission module for transmitting the generated channel state information to the serving BS. | 05-31-2012 |
20120140703 | RELAY STATION AND METHOD OF RELAY STATION TRANSMITTING BACKHAUL UPLINK SIGNAL - A method of a relay station transmitting a backhaul uplink (UL) signal includes receiving information about a structure of a subframe from a base station; allocating a reference signal and control information to the backhaul UL subframe on a basis of the information; and transmitting the reference signal and the control information. The reference signal or the control information is allocated to symbols other than a first symbol and last 2 symbols of the backhaul UL subframe. | 06-07-2012 |
20120147773 | APPARATUS AND METHOD FOR TRANSMITTING CHANNEL STATE INFORMATION IN A MOBILE COMMUNICATION SYSTEM - A apparatus and method for transmitting channel state information is disclosed. If an LTE-A system transmits a reference signal per subframe to support eight transmitting antennas, a problem occurs in that overhead is great. In order to solve this problem, a reference signal for channel measurement is transmitted per subband at different periods, or a user equipment scheduled for channel measurement uses a demodulation reference signal. The user equipment can notify a base station of channel measurement result using the demodulation reference signal in accordance with implicit or explicit signaling from the base station. | 06-14-2012 |
20120147805 | METHOD AND APPARATUS FOR MULTICELL COOPERATIVE COMMUNICATION - According to one aspect of the present invention, a method in which a relay performs multicell cooperative communication comprises the steps of: receiving scheduling information and data from a base station; receiving a bypass indicator from the base station; performing protocol layer processing on the scheduling information and data in accordance with the bypass indicator; and transmitting the processed data to a user equipment in accordance with the processed scheduling information, wherein said bypass indicator indicates that the protocol layer processing should be performed for only a portion of the protocol layer of the relay. | 06-14-2012 |
20120155561 | METHOD OF RELAY NODE USING REFERENCE SIGNAL AND RELAY NODE USING THE METHOD - The present invention relates to a method of a Relay Node (RN) using a reference signal. The method includes receiving information about a Dedicated Reference Signal (DRS) which is used to demodulate a control channel via high-layer signaling from an evolved-NodeB (eNB), receiving control information through the control channel from the eNB, receiving data through a data channel from the eNB, and demodulating the control information and the data. The control information is demodulated using a DRS indicated by the information about the DRS, and the data are demodulated using a DRS indicated by the control information. | 06-21-2012 |
20120163288 | METHOD OF USING COMPONENT CARRIER BY RELAY STATION IN MULTI-CARRIER SYSTEM AND RELAY STATION - A method of using component carrier by a relay station in a multi-carrier system comprises: receiving a component carrier (CC) link configuration information from a base station (BS); allocating a CC to at least one of a backhaul link between the BS and the RS and an access link between the RS and an RS user equipment (UE) according to the CC link configuration information; and transmitting or receiving a signal by using the CC in the allocated link. | 06-28-2012 |
20120170510 | METHOD AND APPARATUS FOR PERFORMING COMMUNICATION IN RELAY SYSTEM - The present invention relates to a method and apparatus for efficiently using a resource in a relay system. In detail, the present invention relates to a method for controlling an uplink signal transmission of user equipment in a wireless communication system, and to an apparatus for same. The method comprises the following steps: checking a cell-specific first SRS transmission subframe set; checking a relay-specific second SRS transmission subframe set; and allocating a resource for the uplink signal transmission. The uplink signal is transmitted to a relay via a backhaul subframe in the event the backhaul subframe falls within the first SRS transmission subframe set but does not fall within the second SRS transmission subframe set. The uplink signal transmission is dropped from the backhaul subframe in the event the backhaul subframe falls within the second SRS transmission subframe set. | 07-05-2012 |
20120178482 | METHOD AND APPARATUS FOR REDUCING INTER-CELL INTERFERENCE IN A WIRELESS COMMUNICATION SYSTEM - The present invention relates to a method including aligning a boundary of a downlink subframe from the first base station to a first user equipment with a boundary of a downlink subframe from a second base station to a second user equipment; acquiring timing advance information indicating a time by which a boundary of an uplink subframe from the first user equipment to the first base station advances compared to the aligned boundary of the downlink subframe; and notifying the first user equipment of a time point at which an uplink subframe is transmitted from the first user equipment to the first base station based on the acquired timing advance information, wherein the boundary of the uplink subframe from the notified first user equipment to the first base station is aligned with a boundary of an uplink subframe from the second user equipment to the second base station. | 07-12-2012 |
20120184206 | METHOD AND APPARATUS FOR REDUCING INTER-CELL INTERFERENCE IN A WIRELESS COMMUNICATION SYSTEM - The present invention relates to a method and apparatus for reducing inter-cell interference in a wireless communication system. The method for reducing inter-cell interference in a wireless communication system according to one embodiment of the present invention includes: a step in which a first terminal receives, from a first cell, scheduling information for the transmission of a first signal to a second cell; and a step in which the first terminal transmits the first signal to the second cell on the basis of the scheduling information. The scheduling information is provided by the first cell in the event an uplink or downlink transmission of the first cell is interfered with by an uplink or downlink transmission of the second cell. The first signal indicates a request for reducing the transmitting power of the second cell or of the second terminal served by the second cell. | 07-19-2012 |
20120188976 | APPARATUS AND METHOD FOR TRANSMITTING UPLINK CONTROL INFORMATION - A wireless communication system is disclosed. A method and apparatus for allowing a user equipment (UE) to transmit uplink control information through a physical uplink shared channel (PUSCH) are disclosed. A method for allowing a UE to transmit uplink control information through a PUSCH in a wireless communication system includes receiving configuration information about a plurality of PUSCH feedback modes, identifying information indicating a specific PUSCH feedback mode for the PUSCH by using uplink allocation information for the PUSCH, and transmitting the uplink control information through the PUSCH in accordance with the specific PUSCH feedback mode. | 07-26-2012 |
20120201191 | METHOD FOR TRANSMITTING AND RECEIVING SIGNAL OF RELAY IN RADIO COMMUNICATION SYSTEM SUPPORTING MULTIPLE CARRIERS - Disclosed herein is a radio communication system, and more particularly, to a method and apparatus for transmitting and receiving a signal on a backhaul link and an access link of a relay in a radio communication system supporting multiple carriers. The method for transmitting and receiving a signal in a relay node operating on multiple carriers includes receiving a control channel from a base station, determining the type of the control channel, determining an in-band operation mode or an out-band operation mode based on the determined type of the control channel, and transmitting and receiving the signal to at least one of the base station and a user equipment according to the determined operation mode. The multiple carriers include one or more in-band component carriers and one or more out-band component carriers. | 08-09-2012 |
20120201318 | APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING REFERENCE SIGNAL (RS) FOR DEMODULATION - An apparatus and method for transmitting and receiving a demodulation reference signal (DM RS) are disclosed. A method for controlling a base station (BS) to transmit a demodulation reference signal (Demodulation RS or DM RS) in a wireless communication system includes transmitting, by the base station (BS), a DM RS for a relay node (RN) to the relay node (RN) through a specific backhaul subframe to which an extended cyclic prefix (CP) is applied. The DM RS is transmitted over two resource elements (REs) of individual subcarriers having subcarrier frequency indexes 2, 5, 8 and 11 in a frequency axis within a second slot of the specific backhaul subframe. | 08-09-2012 |
20120202554 | DYNAMIC UPLINK POWER CONTROL METHOD AND DEVICE IN A WIRELESS COMMUNICATIONS SYSTEM - A wireless communications system and, more particularly, to a dynamic uplink power control method and device in a wireless communications system are disclosed. A method for dynamically controlling an uplink transmission power at a base station is provided, the method includes the steps of receiving an uplink signal from a user equipment being served by the base station, deciding whether or not an uplink transmission to the base station from the user equipment causes an interference with another base station, and transmitting a transmission power control (TPC) command muting the uplink transmission to the user equipment. | 08-09-2012 |
20120207084 | BACKHAUL DOWNLINK SIGNAL DECODING METHOD OF RELAY STATION AND RELAY STATION USING SAME - A method of decoding a backhaul downlink signal of a relay station is provided. The method includes: receiving by the relay station a transmission rank value for a backhaul downlink from a base station through a high-layer signal; receiving control information from the base station through a control region; and decoding the control information, wherein the transmission rank value for the backhaul downlink is a transmission rank value assumed when the relay station decodes the control information, and wherein the control information is mapped to a resource element which does not overlap with a dedicated reference signal resource element mapped to the control region by assuming the transmission rank value for the backhaul downlink. | 08-16-2012 |
20120218968 | METHOD FOR TRANSMITTING CHANNEL QUALITY INFORMATION, AND APPARATUS FOR SAME - The present invention relates to a wireless communication system. In particular, the present invention relates to a method and apparatus for transmitting channel quality information using a terminal, wherein the method comprises the steps of: receiving CoMP configuration information from a serving transmission point; receiving a downlink signal from a plurality of transmission points; and transmitting channel quality information on one or more downlink sub-bands for each transmission point to the serving transmission point, wherein the plurality of transmission points select the same one or more downlink sub-bands in consideration of the CoMP configuration information. | 08-30-2012 |
20120238202 | RELAY STATION DATA TRANSMISSION METHOD - A method of a relay node transmitting data is provided. The method includes receiving scheduling information about a backhaul link and data from a base station; receiving channel information about an access link from relay node user equipment; performing scheduling on the access link based on the scheduling information about the backhaul link and the channel information about the access link; and relaying the data to the relay node user equipment according to a result of the scheduling. The backhaul link means a link between the base station and the relay node, and the access link means a link between the relay node and the relay node user equipment. | 09-20-2012 |
20120287848 | METHOD AND APPARATUS FOR ALLOCATING RESOURCES IN A WIRELESS COMMUNICATION SYSTEM - A method and apparatus for allocating backhaul resources to a relay in a wireless communication system, particularly a method and apparatus for processing a downlink signal at a relay in a wireless communication system are disclosed. The method includes receiving resource allocation information indicating a resource block set from a Base Station (BS) through higher layer signaling, receiving a downlink subframe, starting from a predetermined Orthogonal Frequency Division Multiplexing (OFDM) symbol, from the BS, monitoring the resource block set in the downlink subframe to receive a physical control channel, and performing an operation according to the received physical control channel. | 11-15-2012 |
20120287882 | METHOD AND APPARATUS FOR TRANSMITTING A SOUNDING REFERENCE SIGNAL - The present invention relates to a method for transmitting a sounding reference signal and to an apparatus for said method. More particularly, the present invention relates to a method for transmitting a sounding reference signal and to an apparatus for said method, wherein the method comprising the following steps: receiving sounding reference signal parameters; allocating a wireless resource using the sounding reference signal parameters; and transmitting a sounding reference signal via the wireless resource, wherein said sounding reference signal is transmitted using a portion of a period of a single carrier-frequency division multiple access (SC-FDMA) symbol. | 11-15-2012 |
20120287900 | METHOD AND DEVICE FOR TRANSMITTING A SOUNDING REFERENCE SIGNAL - The present invention provides a method and device for transmitting a sounding reference signal on a wireless communication system. More specifically, the present invention relates to an SRS transmission method comprising the steps of: receiving cell-specific parameters for constituting a SRS; receiving first terminal-specific parameters designating a resource which can be used in the non-periodic transmission of the SRS; receiving request information whereby SRS transmission is requested; and, after the request information has been received, transmitting the SRS by using the resource allocated by means of the first terminal-specific parameters; wherein the SRS is transmitted inside subframes designated by means of the cell-specific parameters, and the present invention also relates to a device for the same. | 11-15-2012 |
20120307733 | METHOD AND APPARATUS OF TRANSMITTING CONTROL INFORMATION IN A WIRELESS COMMUNICATION SYSTEM - The present invention is directed to a wireless communication, more specifically to a method and apparatus of transmitting control information via a PUCCH in the wireless communication system, which comprises generating channel quality information and ACK/NACK information; and transmitting the channel quality information and the ACK/NACK information together via the PUCCH at a subframe, the subframe including a plurality of SC-FDMA symbols, wherein if SRS transmission is not configured at the subframe, all SC-FDMA symbols of the subframe are used for the transmission of the PUCCH, wherein if the SRS transmission is configured at the subframe, last SC-FDMA symbol of the subframe is not used for transmission of the PUCCH. | 12-06-2012 |
20120307755 | ACK/NACK TRANSMISSION METHOD AND APPARATUS THEREFOR - The present invention relates to a wireless communication system. More specifically, the present invention relates to a method and an apparatus for transmitting ACK and NACK with a terminal set in a state of ACK/NACK repetition mode, and the method comprises the steps of: receiving first data through a first subframe; receiving second data through a second subframe; and transmitting an ACK/NACK signal for the second data, wherein the repetition frequency of the ACK/NACK signal for the second data is reduced if a difference between the first subframe and the second subframe is smaller than a reference value. | 12-06-2012 |
20120314567 | METHOD AND APPARATUS OF RECOVERING BACKHAUL LINK FAILURE BETWEEN BASE STATION AND RELAY NODE - A method and apparatus for recovering a backhaul link failure between a base station and a relay node is provided. The relay node receives information on a plurality of relay subframes used for relaying signals between the base station and the relay node. When a backhaul link failure is detected, the relay node determines at least one reserved subframe except the plurality of relay subframes and receives information to recover the backhaul link failure on a control channel in the at least one reserved subframe. | 12-13-2012 |
20120320819 | RELAY NODE APPARATUS FOR TRANSMITTING AND RECEIVING SIGNAL ACCORDING TO LINK OPERATION MODE IN WIRELESS COMMUNICATION SYSTEM AND METHOD THEREOF - A relay node (RN) apparatus for transmitting and receiving a signal according to a link mode in a wireless communication system and a method thereof are disclosed. A processor transmits or receives a signal to or from at least one of a base station and a terminal based on link mode information. At least one antenna receive the link mode information and transmit or receive the signal to or from at least one of the base station and the user equipment. The link mode information includes information a link mode in which the relay node apparatus will operate. | 12-20-2012 |
20120327801 | METHOD FOR PROCESSING DEGRADATION OF RADIO LINK QUALITY IN A WIRELESS COMMUNICATION SYSTEM SUPPORTING RELAYS - A method and apparatus for processing degradation of radio link quality in a wireless communication system supporting relays are disclosed. The method includes determining quality of a radio link between the first node and the communication apparatus, recovering the radio link between the first node and the communication apparatus, when the quality of the radio link between the first node and the communication apparatus is decreased to or below a predetermined threshold, and transmitting to the second node a signaling to control communication on a radio link between the second node and the communication apparatus, when the quality of the radio link between the first node and the communication apparatus is decreased to or below the predetermined threshold. | 12-27-2012 |
20120327843 | METHOD FOR TRANSMITTING CONTROL CHANNEL TO RELAY NODE IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREOF - A method for transmitting a relay node specific downlink physical control channel (R-PDCCH) at a base station in a wireless communication system is disclosed. More specifically, the method includes the steps of allocating one or more Resource Blocks (RBs) for the relay node specific downlink physical control channel, mapping the relay node specific downlink physical control channel to the one or more resource blocks, and transmitting the relay node specific downlink physical control channel to the relay node by using the one or more resource blocks, wherein the mapping step includes mapping the relay node specific downlink physical control channel along a frequency direction in a symbol belonging to a lowermost index, among the one or more resource blocks, and then mapping the relay node specific downlink physical control channel along the frequency direction in a symbol belonging to a next index. | 12-27-2012 |
20120327890 | METHOD AND APPARATUS FOR SUPPORTING HARQ - Provided is a method for supporting retransmission in a wireless communication system by user equipment. The method may determine a transmission parameter for initial transmission of uplink data, transmit the uplink data on an uplink channel using the determined transmission parameter, and, for retransmission of the uplink data, perform multiplexing of retransmission data of the uplink data with a channel quality indicator (CQI). A radio resource for the CQI may be determined based on the transmission parameter used in an initial transmission. The method may transmit the multiplexed data on a physical uplink shared channel. | 12-27-2012 |
20130010676 | METHOD OF TRANSCEIVING SIGNAL AT RELAY NODE IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREOF - A method for allowing a relay node (RN) to transmit and receive in a wireless communication system is disclosed. A method for transmitting and receiving a signal at a relay node in a wireless communication system includes transmitting and receiving a relay-User Equipment (UE) link signal through an access subframe, switching a communication link from a relay-UE link to a relay-base station (BS) link during a predetermined time, and transmitting and receiving a relay?BS link signal through a backhaul subframe. A timing edge of the access subframe is located ahead of a timing edge of an uplink subframe of the backhaul subframe by an offset value. | 01-10-2013 |
20130016653 | METHOD FOR SETTING A SEARCH SPACE FOR A RELAY NODE IN A WIRELESS COMMUNICATION SYSTEM AND APPARATUS FOR SAME - A method of receiving a control signal in a relay node from a base station in a wireless communication system comprises receiving a downlink signal from the base station; and acquiring control information for the relay node from a search space included in the downlink signal, wherein the search space is defined based on a resource allocation unit indicated by resource allocation bits included in resource allocation information received from a higher layer. Preferably, the resource allocation unit indicated by the resource allocation bits is determined in accordance with a type of the resource allocation information. | 01-17-2013 |
20130028221 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING SCHEDULING REQUEST USING SHARED RESOURCE BASED FILTERING IN RADIO COMMUNICATION SYSTEM - Disclosed herein is a method and apparatus for transmitting and receiving a scheduling request using a shared resource based filtering method in a radio communication system. The method for supporting scheduling request using shared resources at a base station including assigning each of one or more users to each of one or more subsets of Scheduling Request (SR) resources of a set consisting of a number, M, of SR resources, receiving scheduling request for the one or more users, determining SR resources used for the scheduling request among M SR resources, determining one or more users associated with the received scheduling request based on the assigned SR resources and the determined SR resources, and transmitting scheduling control information to determined one or more users. | 01-31-2013 |
20130044676 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING SIGNALS BETWEEN A BASE STATION AND A RELAY NODE IN A WIRELESS COMMUNICATION SYSTEM - The present invention relates to a method for transmitting signals by a base station in a wireless communication system, the method comprising: resetting a start symbol index for a relay node dedicated downlink physical control channel and a relay node dedicated downlink physical common channel, respectively; transmitting a message including a parameter required for resetting the start symbol index to the relay node; setting the start symbol index to a preset value or a value that has been given prior to receiving the reestablishment message, in the case where the relay node has sent a specific number of NACKs for the relay node dedicated downlink physical control channel or the relay node dedicated downlink physical common channel; and transmitting the relay node dedicated downlink physical control channel and the relay node dedicated downlink physical common channel to the relay node, based on the start symbol index having been set. | 02-21-2013 |
20130051310 | METHOD FOR TRANSCEIVING SIGNALS BETWEEN A BASE STATION AND A RELAY NODE IN A MULTIUSER MULTI-ANTENNA WIRELESS COMMUNICATION SYSTEM, AND APPARATUS FOR SAME - The present invention relates to a method in which a base station transmits signals to a relay node in a multiuser multi-antenna (MIMO) wireless communication system. More particularly, the method comprises the following steps: allocating one or more antenna ports to one or more relay nodes, respectively; mapping each of a plurality of downlink grant signals for said one or more relay nodes to a preset resource domain from among resource domains corresponding to one of the allocated antenna ports; mapping uplink grant signals or data signals for said one or more relay nodes to the resource domains corresponding to the allocated antenna ports; and transmitting the mapped signals to said one or more relay nodes. | 02-28-2013 |
20130121247 | METHOD FOR TRANSMITTING CHANNEL QUALITY INFORMATION IN A MULTIPLE INPUT MULTIPLE OUTPUT SYSTEM - A method is provided for transmitting channel quality information (CQI) in a MIMO system. A method for allowing a receiver to feed back a CQI value to a transmitter in a Multiple Input Multiple Output (MIMO) system includes receiving a transmission (Tx) pilot signal for each Tx antenna from a base station (BS), measuring a first CQI value of a first codeword and a second CQI value of a second codeword on the basis of the pilot signal, and transmitting the first CQI value of the first codeword and the second CQI value of the second codeword to the base station (BS), wherein at least one of the first and second CQI values includes specific information capable of indicating a transmission restriction status of a corresponding codeword. | 05-16-2013 |
20130142111 | METHOD FOR TRANSMITTING A SIGNAL RELATED TO A CHANGE IN TRANSMISSION FORMAT - Provided is a method of transmitting a signal related to a change in a transmission format. In a wireless communication system which uses an orthogonal frequency division multiplexing (OFDM) symbol or a single carrier-frequency division multiple access (SC-FDMA) symbol, the method includes: transmitting, from a base station to a receiver, a radio resource control (RRC) message indicating that a first transmission format is changed to a second transmission format; and if an acknowledgement (ACK) message for the RRC message is not received, repetitively transmitting the RRC message, from the base station to the receiver, together with data based on the first transmission format or data based on the second transmission format, wherein the data based on the first transmission format and the data based on the second transmission format transmitted together with the RRC message are alternately selected. | 06-06-2013 |
20130163509 | METHOD FOR TRANSMITTING SIGNALS IN A COMMUNICATION SYSTEM INCLUDING A RELAY STATION - Provided is a method for transmitting signals in a relay station. In detail, the method for transmitting signals in a relay station of a wireless communication system using a plurality of subframes including a plurality of OFDM symbols or SC-FDMA symbols comprises the steps of: receiving bitmap information on a backhaul downlink subframe from the relay station; obtaining control information on a subframe that is not used for a backhaul downlink; and repeatedly transmitting channel state information to the relay station on the basis of a virtual index indicating only a backhaul uplink subframe, wherein the backhaul uplink subframe is determined according to the control information and the bitmap information. | 06-27-2013 |
20130286880 | METHOD AND APPARATUS FOR TRANSMITTING DOWNLINK REFERENCE SIGNAL IN WIRELESS COMMUNICATION SYSTEM SUPPORTING MULTIPLE ANTENNAS - A method and apparatus for transmitting a downlink reference signal in a wireless communication system supporting multiple antennas is disclosed. A method for transmitting Channel State Information-Reference Signals (CSI-RSs) for eight or less antenna ports includes selecting one of a plurality of CSI-RS Resource Element (RE) groups defined on a data region of a downlink subframe and mapping CSI-RSs for the eight or less antenna ports to the selected CSI-RS RE group, and transmitting the downlink subframe in which the CSI-RSs for the eight or less antenna ports are mapped. The plurality of CSI-RS RE groups is defined such that a transmission diversity RE pair for data transmitted on the downlink subframe is not broken. | 10-31-2013 |
20140029508 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING SIGNAL FROM RELAY STATION IN RADIO COMMUNICATION SYSTEM - A method and device for a transmitting and receiving a signal from a relay station in a radio communication system is provided. The method includes: receiving offset time information from a base station; configuring a time difference between an access downlink transmission subframe that transmits an access downlink signal to a relay station terminal according to the offset time information and a backhaul downlink reception subframe that receives a backhaul downlink signal from the base station; transmitting a control signal from the access downlink transmission subframe to the relay station terminal; and receiving the backhaul downlink signal from the base station in the backhaul downlink reception subframe. | 01-30-2014 |
20140064218 | METHOD OF TRANSMITTING SOUNDING REFERENCE SIGNAL - A method of transmitting a sounding reference signal (SRS) includes receiving SRS operation information including a sounding indicator, the sounding indicator indicating whether SRS transmission takes place at a subframe; generating the SRS according to the SRS operation information, and if the sounding indicator indicates occurrence of SRS transmission, transmitting the SRS at the subframe. Multiplexing can be achieved without collision between data and a sounding reference signal and single carrier characteristics required in uplink transmission can be preserved. | 03-06-2014 |
20140133433 | COMMUNICATION METHOD AND WIRELESS DEVICE SUPPORTING VARIABLE BANDWIDTH - A wireless device transmits to a base station, which supports a basic bandwidth, a random preamble for indicating an operating bandwidth, and the wireless device receives a random access response from the base station as a response to the random access preamble. The operating bandwidth is smaller than the basic bandwidth. | 05-15-2014 |
20140140267 | METHOD OF OPERATING RELAY STATION IN WIRELESS COMMUNICATION SYSTEM - A method of operating a relay station in a wireless communication system is provided. The method includes operating in a first mode comprising a first sub-mode and a second sub-mode, in the first sub-mode a first downlink and a first uplink between a base station and the relay station being simultaneously activated, in the second sub-mode a second downlink and a second uplink between the relay station and a mobile station being simultaneously activated, and operating in a second mode comprising a third sub-mode and a fourth sub-mode, in the third sub-mode the first downlink and the second uplink being simultaneously activated, in the fourth sub-mode the first uplink and the second downlink being simultaneously activated. | 05-22-2014 |
20140192749 | METHOD AND APPARATUS FOR SUPPORTING HARQ - A method of supporting Hybrid Automatic Repeat Request (HARQ) includes receiving an initial uplink grant on a downlink channel, transmitting uplink data on an uplink channel using the initial uplink grant, receiving a request for retransmission of the uplink data, determining at least one transmission parameter of a channel quality indicator (CQI) from the initial uplink grant, multiplexing retransmission data of the uplink data with the CQI, and transmitting the multiplexed data on the uplink channel. | 07-10-2014 |
20140219212 | METHOD AND APPARATUS FOR CHANNEL ESTIMATION FOR RADIO LINK BETWEEN A BASE STATION AND A RELAY STATION - A method for receiving a downlink signal at a downlink reception entity in a wireless communication system, the method includes: receiving downlink control information by demodulating an advanced Physical Downlink Control Channel (PDCCH) of a first resource block (RB) pair of a RB bundle based on a downlink channel estimated by a first Demodulation Reference Signal (DMRS) in the first RB pair; and receiving downlink data by demodulating a Physical Downlink Shared Channel (PDSCH) of a second RB pair of the RB bundle based on a downlink channel estimated by a second DMRS in the second RB pair, wherein the same DMRS pattern is used for the first and the second DMRSs, and wherein antenna ports for the first and the second DMRSs are different. | 08-07-2014 |
20140254420 | METHOD AND WIRELESS DEVICE FOR MONITORING DOWNLINK CONTROL CHANNEL - Provided are a method and a wireless device for monitoring a downlink control channel in a wireless communication system. The wireless device monitors a first downlink control channel in a first search space, and monitors a second downlink control channel in a second search space. The first downlink control channel is modulated by a first reference signal, which is generated on the basis of an identifier of a first serving cell, and the second downlink control channel is modulated by a second reference signal, which is generated on the basis of an identifier of a second serving cell. | 09-11-2014 |
20140254526 | METHOD FOR RECEIVING ACK/NACK SIGNAL IN MOBILE COMMUNICATION SYSTEM - A method for transmitting information of resources for use in transmission of ACK/NACK signals in a mobile communication system is disclosed. An example method for receiving ACK/NACK signals in a mobile communication system is also disclosed. When resources for transmission of data and resources for transmission of control information of the data are scheduled through virtual unit resources, the method identifies information of resources for receiving an ACK/NACK signal for transmission data mapped to information of at least one of a virtual unit resource allocated to the transmission data and a virtual unit resource allocated to control information of the transmission data, and receives the ACK/NACK signal for the transmission data through the information of resources for receiving the ACK/NACK signal. | 09-11-2014 |
20140254533 | METHOD OF MONITORING A CONTROL CHANNEL, AND WIRELESS DEVICE USING SAME - The present invention relates to a method of monitoring a control channel and a wireless device using same in a multiple antenna system in which a plurality of layers are defined. The wireless device monitors a first downlink control channel in a first search space which is mapped to a first layer, and a second downlink control channel in a second search space which is mapped to a second layer. The first layer of the plurality of layers is the lowest layer. | 09-11-2014 |
20140293975 | METHOD OF MONITORING CONTROL CHANNEL AND WIRELESS DEVICE USING SAME - The present invention relates to a method of monitoring a control channel in a wireless communication system and a wireless device using same. The wireless device monitors a first downlink control channel having an uplink grant in a first slot, and a second downlink control channel having a hybrid automatic repeat request (HARQ) positive-acknowledgement (ACK)/negative-acknowledgement (NACK) in a second slot. | 10-02-2014 |
20140307560 | METHOD AND WIRELESS DEVICE FOR MONITORING CONTROL CHANNEL - Provided are a method and a wireless device for monitoring a control channel in a wireless communication system. The wireless device monitors a first downlink control channel in a common search space of a subframe, and monitors a second downlink control channel in a user equipment-specific search space of the subframe. The first downlink control channel is modulated by a cell-specific reference signal, and the second downlink control channel is modulated by a reference signal that is specific to the wireless device. | 10-16-2014 |
20140307690 | METHOD FOR RECEIVING DATA AND WIRELESS DEVICE - Provided are a method for receiving data in a wireless communication system and a wireless device. The wireless device receives a downlink grant on a downlink control channel, and determines the size of a downlink transmission block on the basis of the downlink grant. The maximum size of the downlink transmission block is limited to below or equal to a specific value. | 10-16-2014 |
20140313970 | BACKHAUL DOWNLINK SIGNAL DECODING METHOD OF RELAY STATION AND RELAY STATION USING SAME - A method of decoding a backhaul downlink signal of a relay node (RN), the method includes receiving a higher layer signal indicating a maximum transmission rank from a base station (BS), receiving control information through a relay control channel from the BS, and demodulating the control information, wherein the control information is mapped to resource elements which do not overlap with user equipment-specific reference signal resource elements (URS REs) in a control region which is used for the relay control channel transmission of the BS, the URS REs being reserved resource elements for user equipment-specific reference signals (URSs) according to the maximum transmission rank, and wherein the control information is demodulated based on user equipment-specific reference signals transmitted by the BS on one fixed antenna port n, where n is a natural number. | 10-23-2014 |
20140314042 | METHOD AND APPARATUS FOR CONTROLLING INTER-CELL INTERFERENCE - Provided are a method and an apparatus for controlling inter-cell interference in a wireless communication system. A first cell receives control information related to the configuration of a downlink control channel from a second cell, and the first cell determines a transmission resource of the downlink control channel in accordance with the control information. | 10-23-2014 |
20140328301 | DATA RECEIVING METHOD AND WIRELESS DEVICE - Provided is a data receiving method in a wireless communication system and a wireless device using the same. A wireless device monitors a downlink control channel, and receives a downlink reference signal to be used in a demodulation of a downlink transmission block based on the resource to be used in the monitoring the downlink control channel. | 11-06-2014 |
20140328305 | METHOD AND WIRELESS DEVICE FOR MONITORING CONTROL CHANNEL - Provided are a method for monitoring a control channel and a wireless device using same. A wireless device decodes downlink control information on a downlink control channel on L number of resource units in an aggregation level L (L>1). The downlink control information comprises a plurality of modulation symbols, and permutations of the plurality of modulation symbols are mapped to the L number of resource units. | 11-06-2014 |
20140341313 | METHOD FOR TRANSMITTING SOUNDING REFERENCE SIGNAL IN MIMO WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR - A method for transmitting a sounding reference signal in a MIMO wireless communication system and an apparatus therefor are disclosed. The method for transmitting sounding reference signals (SRSs) in a MIMO wireless communication system comprises receiving sounding reference signal parameters from a base station; receiving information of the number of sounding reference signals which will be transmitted at a transmission time instant from the base station; if a plurality of sounding reference signals are provided, generating the sounding reference signals corresponding to each of the plurality of antennas by using the sounding reference signal parameters; and transmitting the generated sounding reference signals to the base station through their corresponding antennas at a specific transmission instant. | 11-20-2014 |
20140348057 | METHOD AND APPARATUS FOR ALLOCATING RESOURCES IN A WIRELESS COMMUNICATION SYSTEM - A method of transmitting signals by a base station in a wireless communication system. The method includes transmitting, to a relay node, resource allocation information indicating a Virtual Resource Block (VRB) set through Radio Resource Control (RRC) signaling; and transmitting a downlink subframe including at least one control channel element (CCE) related to the relay node. The at least one CCE is allocated from a specific Orthogonal Frequency Division Multiplexing (OFDM) symbol other than a first OFDM symbol of the downlink subframe. The VRB set is configured for a Relay Physical Downlink Control Channel (R-PDCCH). | 11-27-2014 |
20140348058 | METHOD FOR TRANSMITTING CONTROL CHANNEL TO RELAY NODE IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREOF - A method for receiving a Relay Physical Downlink Control CHannel (R-PDCCH) by a User Equipment (UE) in a wireless communication system. The method includes receiving a downlink subframe including one or more aggregated resource blocks including resource elements. The resource elements are mapped in increasing order of first a subcarrier index, and then a symbol index. The method further includes monitoring the R-PDCCH on the one or more aggregated resource blocks. The one or more aggregated resource blocks are numbered based on an aggregation level and a number of the one or more aggregated resource blocks corresponding to the aggregation level. | 11-27-2014 |
20140355451 | METHOD FOR MONITORING A DOWNLINK CONTROL CHANNEL, AND WIRELESS DEVICE - Provided are a method for monitoring a control channel in a wireless communication system, and a wireless device. The wireless device receives a group identifier from a base station, and monitors a downlink control channel in a search space including N (N>=1) enhanced control channel elements (ECCEs) in accordance with the group identifier. | 12-04-2014 |
20140362799 | METHOD AND APPARATUS FOR TRANSMITTING SOUNDING REFERENCE SIGNAL - Provided are a method and a wireless device for transmitting a sounding reference signal in a wireless communication system. The wireless device receives an SRS (sounding reference signal) configuration for a periodic transmission, and transmits the SRS in a randomly determined subframe from among a plurality of SRS subframes determined on the basis of the SRS configuration. | 12-11-2014 |
20140369286 | METHOD AND DEVICE FOR EXCHANGING DATA IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a method and device for exchanging data in a wireless communication system. A base station exchanges at least one of a cell identifier (ID) of a higher layer parameter, a cyclic shift parameter n | 12-18-2014 |
20140376395 | METHOD AND APPARATUS FOR MONITORING CONTROL CHANNEL - Provided are a method and an apparatus for monitoring a control channel in a sub-frame including a plurality of orthogonal frequency division multiplexings (OFDMs) in a time division duplex (TDD)-based wireless communication system. A wireless device monitors a downlink control channel in at least one OFDM symbol after an OFDM symbol receives a primary synchronization signal (PSS) in the sub-frame. | 12-25-2014 |
20150016388 | METHOD OF TRANSMITTING SOUNDING REFERENCE SIGNAL IN WIRELESS COMMUNICATION SYSTEM - A method of transmitting a sounding reference signal includes generating a physical uplink control channel (PUCCH) carrying uplink control information on a subframe, the subframe comprising a plurality of SC-FDMA (single carrier-frequency division multiple access) symbols, wherein the uplink control information is punctured on one SC-FDMA symbol in the subframe, and transmitting simultaneously the uplink control information on the PUCCH and a sounding reference signal on the punctured SC-FDMA symbol. The uplink control information and the sounding reference signal can be simultaneously transmitted without affecting a single carrier characteristic. | 01-15-2015 |
20150055548 | METHOD AND APPARATUS FOR TRANSMITTING SIGNAL VIA RELAY BACKHAUL LINK - A method for receiving a signal by a relay in a wireless communication system. The method according to an embodiment includes receiving, by the relay from a base station (BS), a reference signal (RS) in a subframe having a first slot and a second slot. Each of the first and second slots includes a plurality of consecutive resource elements over which the RS is allowed to be spread, and the plurality of consecutive resource elements overlaps a last Orthogonal Frequency Division Multiplexing (OFDM) symbol of a corresponding slot. When a last OFDM symbol of the subframe is not available for transmission from the BS to the relay, the RS is received only in the first slot of the subframe and a data signal is received in at least part of the plurality of consecutive resource elements in the second slot. | 02-26-2015 |
20150063200 | METHOD FOR PRIORITIZING OPERATION OF RELAY NODE IN A WIRELESS COMMUNICATION SYSTEM AND APPARATUS FOR THE SAME - Various methods and apparatuses for prioritizing operation of Relay Node are disclosed. A method for prioritizing the transmission and receipt of uplink signals in a relay node of a wireless communication system is presented. The method comprises determining radio resource requirements for receiving one or more access link signals and/or transmitting one or more backhaul link signal, determining the signal type of the one or more access link signals and/or determining the signal type of the one or more backhaul link signals, and selecting one of a transmitting mode operation and a receiving mode operation based on the radio resource requirements for receiving the one or more access link signals and/or transmitting the one or more backhaul link signals, and based on the signal type of the one or more access link signals and/or the signal type of the one or more backhaul link signals. | 03-05-2015 |
20150063289 | METHOD FOR TRANSMITTING SOUNDING REFERENCE SIGNAL IN MIMO WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR - A method for transmitting a sounding reference signal in a MIMO wireless communication system and an apparatus therefor are disclosed. The method for transmitting sounding reference signals (SRSs) in a MIMO wireless communication system comprises receiving sounding reference signal parameters from a base station; receiving information of the number of sounding reference signals which will be transmitted at a transmission time instant from the base station; if a plurality of sounding reference signals are provided, generating the sounding reference signals corresponding to each of the plurality of antennas by using the sounding reference signal parameters; and transmitting the generated sounding reference signals to the base station through their corresponding antennas at a specific transmission instant. | 03-05-2015 |