Patent application number | Description | Published |
20110086659 | APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING CONTROL INFORMATION IN WIRELESS COMMUNICATION SYSTEM - Disclosed are apparatuses and methods for transmitting and receiving control information, such as downlink assignment and uplink grant, to each CC through a DCI format of a PDCCH in a wireless communication system using a plurality of CCs. Exemplary embodiments include configuration and transmission of a CC indicator for the DCI format, in order to identify a CC to which the control information transferred by each DCI format corresponds from among the CCs. | 04-14-2011 |
20110105162 | APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING CONTROL INFORMATION IN WIRELESS COMMUNICATION SYSTEM - A system and a method for transmitting control information by a system in a heterogeneous wireless communication network using Component Carriers (CCs), the heterogeneous wireless communication network including a first wireless communication network and a second wireless communication network, which at least partially overlap and are heterogeneous, the system controlling the second wireless communication network can more stably and efficiently transmit control information in a heterogeneous network environment. The method includes: calculating an environmental parameter having an influence on transmission of control information; determining a transmission scheme of the control information according to the calculated environmental parameter; and transmitting the control information to a User Equipment (UE) connected to the second wireless communication network according to the determined transmission scheme. | 05-05-2011 |
20110176634 | METHOD AND APPARATUS FOR ALLOCATING CHANNEL STATE INFORMATION-REFERENCE SIGNAL IN WIRELESS COMMUNICATION SYSTEM - Disclosed are an apparatus for Channel State Information-Reference Signal (CSI-RS) allocation and a method for CSI-RS transmission using the same in a wireless communication system. A CSI-RS for each antenna port is allocated to REs or subcarriers on a basis of a symbol or symbol axis in a subframe or Resource Block (RB), and is allocated in such a manner that a distance between neighboring CSI-RS allocation REs or subcarriers may be 3 REs or subcarriers. Accordingly, in the range of following CSI-RS transmission overhead, CSI-RSs are allocated to a time-frequency resource domain in such a manner so as to have perfect orthogonality or quasi-orthogonality according to cells or cell groups. Then, the CSI-RSs, which have been allocated to the time-frequency resource domain, are transmitted. | 07-21-2011 |
20120044796 | METHOD FOR GENERATING SIGNAL PATTERN USING MODULUS OR SEQUENCE, AND DEVICE THEREOF - Disclosed are a method and an apparatus for generating signal patterns used for a transmission/reception process between a terminal and a base station by using a modular sonar sequence. | 02-23-2012 |
20120093253 | POWER ALLOCATION METHOD FOR WIRELESS COMMUNICATION SYSTEM, APPARATUS FOR SAME, AND TRANSCEIVER DEVICE USING THIS FORM OF SIGNAL TRANSMISSION - Disclosed is a wireless communication system and a power allocation in the wireless communication system. | 04-19-2012 |
20120108254 | REFERENCE SIGNAL ALLOCATION METHOD FOR WIRELESS COMMUNICATION SYSTEM, APPARATUS FOR SAME, AND TRANSCEIVER DEVICE USING THE APPARATUS - Disclosed is a reference signal required for an estimation of a frequency domain channel by a receiver side in order to transmit and receive data between a UE and a BS, and an apparatus and a method for allocating a reference signal for obtaining channel state information. In a wireless communication system including a UE and a BS using multiple antennas, cells are distinguished by applying a CDM, multiple antenna layers are distinguished by using a frequency offset or a time offset, and the reference signal for obtaining the channel state information is allocated to a frame or a subframe. | 05-03-2012 |
20120147844 | METHOD AND SYSTEM FOR ALLOCATING RESOURCES FOR COMPONENT CARRIERS IN A WIRELESS COMMUNICATION SYSTEM - The present disclosure relates to a wireless communication system which has a plurality of component carriers and a method and system for allocating resources for each component carrier. The present disclosure relates to a scheme in which cell coverage is set for each component carrier in consideration of the wireless environment of the component carriers, and a scheme in which a random access process of a user equipment is controlled in accordance with said set cell coverage and resources are allocated in accordance with a priority configuration. | 06-14-2012 |
20120155355 | METHOD AND SYSTEM FOR TRANSMITTING/RECEIVING DATA IN A WIRELESS COMMUNICATION SYSTEM - The present specification relates to a wireless communication system, and more particularly, discloses a method and system for discontinuous reception for data transmission/reception in a wireless communication system. The present specification discloses a scheme in which a terminal checks a parameter for controlling the discontinuous reception (DRX) of a second component carrier, said parameter being different from the parameter for controlling the discontinuous reception (DRX) of a first component carrier used by a base station, and receives data through the discontinuous reception of the first component carrier and of the second component carrier. | 06-21-2012 |
20120195283 | METHOD FOR TRANSMITTING INFORMATION OVER A COMPONENT CARRIER IN A WIRELESS COMMUNICATION SYSTEM, AND WIRELESS COMMUNICATION SYSTEM - The present specification relates to a method for transmitting information over a component carrier and to a wireless communication system for the method. The present invention relates to a method for transmitting information that indicates an allocated component carrier, and to a method for transmitting information on the number of usable CCs of a terminal via upper layer signaling, and transmitting information on CC allocation via physical layer signaling. | 08-02-2012 |
20120195286 | APPARATUS AND METHOD FOR TRANSCEIVING SIGNALS IN A WIRELESS COMMUNICATION SYSTEM - The present specification relates to an apparatus and method for transceiving signals between a terminal and a base station in a wireless communication system. The present specification relates to a signal-transceiving method in which location reference signals discriminated by frequency units for each base station, such that base stations which transmit location reference signals with the same location reference signal pattern can be further discriminated. | 08-02-2012 |
20120201192 | METHOD AND APPARATUS FOR RELAYING UPLINK SIGNALS - The present invention relates to a method and apparatus for relaying uplink signals, and provides a method and apparatus for relaying uplink signals which involve integrating a plurality of information blocks for signals received from a plurality of terminals to generate an integrated information block, encoding the thus-generated integrated information block, and transmitting the encoded block to a base station. | 08-09-2012 |
20120201202 | METHOD FOR UPLINK MULTI-RECEPTION, AND BASE STATION DEVICE USING SAME - The present specification relates to a wireless communication system, and particularly, to a method for uplink multi-reception in a wireless communication system and to a base station device using same. The present specification relates to an uplink multi-reception technique for enabling two or more base stations including a serving main base station and one or more neighbor base stations, in order to receive data from a user equipment. The base station device checks whether or not the signal received from the user equipment is decoded, receives a transmission ready signal (RPT) from the neighbor base station or exchanges ACK/NACK signals, determines one or more neighbor base stations as selected neighbor base stations in accordance with a predetermined regulation, transmits a transmission request signal to the selected neighbor base stations, and receives data. | 08-09-2012 |
20120213190 | APPARATUS AND METHOD FOR GENERATING AND TRANSCEIVING REFERENCE SIGNAL IN WIRELESS COMMUNICATION SYSTEM USING PLURAL COMPONENT CARRIERS - The present invention relates to an apparatus and a method for composing and transmitting/receiving a reference signal in a wireless communication system that uses a plurality of component carriers (CC). In a wireless communication system using a plurality of component carriers, the present invention can reduce an increase in cubic metric (CM) and peak to average power ratio (PAPR) which occur in the course of composing and transmitting/receiving the same reference signal for each component carrier, by composing and transceiving a distinctive reference signal for each component carrier. | 08-23-2012 |
20120213203 | METHOD FOR SENDING AND RECEIVING SYSTEM INFORMATION IN A WIRELESS COMMUNICATION SYSTEM, AND A SYSTEM INFORMATION SENDING DEVICE AND RECEIVING DEVICE EMPLOYING THE SAME - The present invention relates to a method for sending and receiving system information about multiple component carriers in a wireless communication system, and to a system information sending and receiving device employing the same. The present invention comprises a configuration wherein one component carrier is used to transmit system information about another component carrier to a terminal. One embodiment of the present invention solves the problems which occur when using a plurality of component carriers such as additional battery consumption and time delays before receiving information, and hence it has the advantages that battery consumption and information receipt delays are reduced. | 08-23-2012 |
20120258721 | METHOD AND APPARATUS FOR OPERATING COMPONENT CARRIERS IN A WIRELESS COMMUNICATION SYSTEM - The present invention relates to a method and apparatus for operating component carriers in a wireless communication system. The method for operating component carriers according to one embodiment of the present invention comprises the following steps: determining whether or not to reconfigure component carriers of user equipment, and transmitting, to the user equipment, a reconfiguration message containing information on uplink component carriers to be allocated to a cell; allocating a resource in the cell as an uplink component carrier resource; and receiving, from the user equipment, a message containing the result of the allocation of the uplink component carriers via the allocated uplink component carriers. | 10-11-2012 |
20120269152 | METHOD FOR CONFIGURING A RESOURCE, METHOD FOR TRANSCEIVING DATA IN THE CONFIGURED RESOURCE, AND APPARATUS FOR SAME IN A WIRELESS COMMUNICATION SYSTEM - The present description relates to a wireless communication system, a method for configuring a resource, a method for transceiving data in the configured resource, and an apparatus for the same. The method described in the present description comprises: selecting one or more resource block groups from among the resource block groups contained in at least one or more component carriers so as to generate an aggregated resource block group; and allocating resources in accordance with the configuration of the aggregated resource block group, and transceiving data. Here, information on the aggregated resource block group contains a component carrier indicator. | 10-25-2012 |
20120281578 | METHOD FOR TRANSCEIVING CHANNEL INFORMATION, AND TERMINAL AND BASE STATION USING SAME - The present description relates to a wireless communication system and to a method for transceiving channel information through carrier aggregation, and a terminal and a base station using the method. The method described in the present description comprises: receiving channel information from a user terminal, and generating a sub-band group from one or more subbands contained in at least one or more component carriers; and receiving, from the user terminal, channel information for each of the sub-band groups through a control channel. | 11-08-2012 |
20120300725 | SYSTEM INFORMATION TRANSMISSION AND RECEIVING METHOD OF MULTIPLE COMPONENT CARRIERS AND DEVICE THEREOF, AND SYSTEM INFORMATION TRANSMITTING AND RECEIVING/UPDATING DEVICE USING SAME - A base station and a user equipment (UE) transmit and receive one or more of a system information (SI) change notification message, which includes SI change notification information of a first component carrier in which system information is changed, and an SI validity verification message, which includes SI validity verification information of the first component carrier in which the system information is changed, in order to transmit and receive the system information in a wireless communication system using at least one component carrier; and the SI is transmitted by determining a transmission type of the system information according to priority between QoSs and power consumption of the UE, without generating an additional increase of signal quantities or power consumption when the SI is transmitted. | 11-29-2012 |
20120307772 | METHOD OF SWITCHING A PERIODIC/APERIODIC TRANSMISSION OF A CHANNEL ESTIMATION REFERENCE SIGNAL, AND APPARATUS AND METHOD FOR A TRANSMITTING/RECEIVING CHANNEL ESTIMATION REFERENCE SIGNAL USING THE SAME - A method for switching between periodic transmission and aperiodic transmission of a channel estimation reference signal for scheduling resources in an Orthogonal Frequency Division Multiple Access (OFDMA) system and an apparatus to transmit/receive the reference signal using the same. To schedule periodic and aperiodic transmission of the channel estimation reference signal, a predetermined type of transmission indicator is used, the transmission indicator including one or more bits of a periodic/aperiodic identification indicator. According to the present embodiment, when periodic and aperiodic transmission of the channel estimation reference signal is mixedly performed, interference between user equipment or between cells can be minimized, and a transmission efficiency of the reference signal can be enhanced. | 12-06-2012 |
20120314656 | METHOD AND APPARATUS FOR COMBINING AND TRANSCEIVING CONTROL INFORMATION - Disclosed are a method and apparatus for combining and transceiving control information. The method for combining and transmitting control information in accordance with one embodiment of the present invention comprises: a step in which a base station, which transceives control information and data information to/from a user terminal via a plurality of component carriers (CC), transmits control information via a first component carrier to the user terminal, and determines identification information for identifying a second component carrier so as to transmit data information via the second component carrier which is determined by the control information of the first component carrier; a step of determining indication information required for encoding the data information and/or control information of the second component carrier; a step of combining the identification information for identifying the second component carrier and the indication information; and a step of transmitting the control information of the first component carrier, including said combined information. | 12-13-2012 |
20120320843 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING EXTENSION INFORMATION OF COMPONENT CARRIER IN WIRELESS COMMUNICATION SYSTEM - A base station comprises: an area information generation unit which generates information for a determined second area by determining an additional assignment of the second area different from a first area to a component carrier (CC) of the first area having a bandwidth smaller than a bandwidth of a maximum assignable CC; a mapping control unit which controls an assignment of a reference signal to a frequency band including the first and second areas by generating the reference signal for channel estimation in the first and second areas; a signal generation unit which generates the information for the second area and the reference signal as a wireless signal; and a transmission unit for transmitting the generated wireless signal and is characterized by transmitting data to a user terminal and receiving the data from the user terminal by assigning the resources to the first and second areas. | 12-20-2012 |
20120322445 | METHOD AND APPARATUS FOR REDUCING CONSUMPTION OF TRANSMISSION POWER IN BASE STATION BY ADJUSTING TRANSMISSION INTERVAL OF CONTROL SIGNAL - A method for reducing the consumption of the transmission power in the base station by adjusting the transmission interval between the control signals comprises the steps of: changing the interval between the control signals transmitted from the base station from a first interval to a second interval and transmitting the control signal; receiving a first message including transmission interval adjustment request information of the control signal; and changing the interval between the control signals to the first interval and transmitting the control signal. | 12-20-2012 |
20130070693 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING MULTIPLE DATA TRANSMISSION RESULT - A method and an apparatus for transmitting and receiving multiple data transmission result, the apparatus comprises: a receiver in which a base station receives two or more uplink subframes that include independent data from a terminal; a reception verifier which verifies the independent data received from the receiver; a response data generator which generates a verification result for the independent data as response data; a signal generator which generates a downlink subframe by storing first information of the response data in a first section of a control area, and by storing second information of the response data in a field, which is not changed for a certain period of time, within a second section of the control area that is distinguished from the first section; and a transmitter which transmits the downlink subframe. | 03-21-2013 |
20140029696 | METHOD AND APPARATUS FOR ALLOCATING CHANNEL STATE INFORMATION-REFERENCE SIGNAL IN WIRELESS COMMUNICATION SYSTEM - Disclosed are an apparatus for Channel State Information-Reference Signal (CSI-RS) allocation and a method for CSI-RS transmission using the same in a wireless communication system. A CSI-RS for each antenna port is allocated to REs or subcarriers on a basis of a symbol or symbol axis in a subframe or Resource Block (RB), and is allocated in such a manner that a distance between neighboring CSI-RS allocation REs or subcarriers may be 3 REs or subcarriers. Accordingly, in the range of following CSI-RS transmission overhead, CSI-RSs are allocated to a time-frequency resource domain in such a manner so as to have perfect orthogonality or quasi-orthogonality according to cells or cell groups. Then, the CSI-RSs, which have been allocated to the time-frequency resource domain, are transmitted. | 01-30-2014 |
20140211711 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING EXTENSION INFORMATION OF COMPONENT CARRIER IN WIRELESS COMMUNICATION SYSTEM - A base station includes: an area information generation unit which generates information for a determined second area by determining an additional assignment of the second area different from a first area to a component carrier (CC) of the first area having a bandwidth smaller than a bandwidth of a maximum assignable CC; a mapping control unit which controls an assignment of a reference signal to a frequency band including the first and second areas by generating the reference signal for channel estimation in the first and second areas; a signal generation unit which generates the information for the second area and the reference signal as a wireless signal; and a transmission unit for transmitting the generated wireless signal and is characterized by transmitting data to a user terminal and receiving the data from the user terminal by assigning the resources to the first and second areas. | 07-31-2014 |
20140355711 | METHOD AND APPARATUS FOR ALLOCATING CHANNEL STATE INFORMATION-REFERENCE SIGNAL IN WIRELESS COMMUNICATION SYSTEM - Disclosed are an apparatus for Channel State Information-Reference Signal (CSI-RS) allocation and a method for CSI-RS transmission using the same in a wireless communication system. A CSI-RS for each antenna port is allocated to REs or subcarriers on a basis of a symbol or symbol axis in a subframe or Resource Block (RB), and is allocated in such a manner that a distance between neighboring CSI-RS allocation REs or subcarriers may be 3 REs or subcarriers. Accordingly, in the range of following CSI-RS transmission overhead, CSI-RSs are allocated to a time-frequency resource domain in such a manner so as to have perfect orthogonality or quasi-orthogonality according to cells or cell groups. Then, the CSI-RSs, which have been allocated to the time-frequency resource domain, are transmitted. | 12-04-2014 |