Patent application number | Description | Published |
20120307649 | CHANNEL STATUS INFORMATION FEEDBACK APPARATUS AND METHOD FOR SAME, BASE STATION, AND TRANSMISSION METHOD OF SAID BASE STATION - A method and wireless communication system using a multi-input multi-output (MIMO) antenna generate vectors and feedback channel status information. | 12-06-2012 |
20120314787 | CHANNEL INFORMATION TRANSMISSION METHOD AND FEEDBACK METHOD, AN APPARATUS THEREOF, A BASE STATION AND A TRANSMISSION METHOD OF THE BASE STATION - A wireless communication system uses a multiple-input multiple-output (MIMO) antenna in the transceiver mode. The system includes the technical features of a stage in which m bits of a first set of information is transmitted for a first pre-coding matrix (where m is an integer greater than 1), and a stage in which n bits of a second set of information is transmitted for a second pre-coding matrix (where n is an integer greater than 1 but less than n). | 12-13-2012 |
20130022140 | TRANSMISSION DEVICE, RECEIVING DEVICE, INFORMATION TRANSMISSION METHOD, INFORMATION RECEIVING METHOD IN WIRELESS COMMUNICATION SYSTEM, AND RECORDING MEDIUM - The present invention relates to a transmission device, a receiving device, an information transmission method, and an information receiving method in a wireless communication system, and a recording medium in which data of a codebook used for transmitting and receiving information is recorded. | 01-24-2013 |
20130028068 | CHANNEL STATE INFORMATION FEEDBACK DEVICE, METHOD THEREOF, AND BASE STATION - An embodiment of the present invention relates to a wireless communication system, wherein said wireless communication system uses multiple input and multiple output antenna (MIMO) on both transmission and receiving ends. | 01-31-2013 |
20130034011 | METHOD AND APPARATUS FOR TRANSCEIVING A CYCLIC SHIFT PARAMETER WHICH INDICATES ORTHOGONALITY - An apparatus and method for transceiving a cyclic shift parameter which provides orthogonality includes a base station to transmit a cyclic shift parameter that provides orthogonality, and the method involves determining multiple access states of one or more user equipments (UEs), determining the cyclic shift parameter for calculating information related to the orthogonality, and transmitting the determined cyclic shift parameter to the UE. | 02-07-2013 |
20130094548 | METHOD FOR TRANSMITTING CHANNEL INFORMATION, DEVICE THEREOF, BASE STATION, AND METHOD FOR TRANSMITTING FOR BASE STATION THEREOF - The present disclosure relates to transmission and reception using a multiple-input multiple-output (MIMO) antenna in a wireless communication system in which a method includes: receiving a reference signal to estimate a channel; estimating a suitable pre-coding matrix from the estimated channel similar to a Discrete Fourier Transform (DFT) matrix which has at least two different DFT code books; providing a relatively large DFT matrix subset with a pre-coding matrix phase different from the set of said suitable pre-coding matrix; generating channel information which includes multiple access information on at least one DFT matrix which is small enough to be similar to said subset pre-coding matrix; and transmitting said channel information generated in said channel information generating step. | 04-18-2013 |
20130107849 | METHOD, TERMINAL, AND BASE STATION FOR TRANSMITTING AND RECEIVING CHANNEL INFORMATION | 05-02-2013 |
20130114763 | TRANSMITTING DEVICE AND A METHOD OF COMMUNICATING THEREWITH, AND RECEIVING DEVICE AND A METHOD OF COMMUNICATING THEREWITH - An embodiment of the present invention relates to a wireless communication system, and more specifically relates to a wireless communication system using multi-input and multi-output (MIMO) antennas in all transmission and reception terminals. | 05-09-2013 |
20130136100 | APPARATUS AND METHOD FOR TRANSMITTING MUTING INFORMATION, AND APPARATUS AND METHOD FOR ACQUIRING CHANNEL STATE USING SAME - The present disclosure relates to an apparatus and a method for transmitting muting information in a wireless communication system, and to an apparatus and a method for acquiring channel state using same. In an exemplary embodiment, muting information includes: a first data field, having a serving cell for receiving from peripheral cells in a multi-cell environment, at least one of a CSI-RS pattern, the number of CSI-RS antenna ports, a CSI-RS duty cycle, and CSI-RS transmission subframe offset information, and using same for expressing the cycle and the offset of muting subframes, which pertain to information on a resource block that can generate interference between the peripheral cells and CSI-RS; and a second data field for expressing a specific muting pattern, which must be muted within the muting subframes, having either 12 bits or 28 bits that display muting application in a bitmap format. | 05-30-2013 |
20130155992 | METHOD AND DEVICE FOR TRANSMITTING AND RECEIVING REFERENCE SIGNALS IN ACCORDANCE WITH MIMO OPERATION MODE - The present disclosure relates to a method for transmitting and receiving control information and generating reference signals in accordance with a multiple-input multiple-output (MIMO) operation mode, and a device thereof. A method for receiving control information and generating reference signals in accordance with an MIMO operation mode includes: allowing a user equipment to receive a cyclic shift parameter from a base station; and setting cyclic shift values and OCC values for each layer by using a cyclic shift, an orthogonality allocation rule, and said received cyclic shift parameter, and generating and transmitting reference signals by using said set values. Said cyclic shift is related to the MIMO operation mode of the user equipment and is selected by referring to a parameter transmitted from an upper layer. | 06-20-2013 |
20130223397 | METHOD AND DEVICE FOR TRANSMITTING AND RECEIVING APERIODIC REFERENCE SIGNAL - Disclosed are a method and a device for transmitting and receiving an aperiodic reference signal. The method for receiving an aperiodic reference signal comprises: allowing a reference signal receiving device to determine a radio resource area that can be calculated by environmental information from a first reference signal transmission device, and to transmit an aperiodic reference signal to the first reference signal transmission device by including first instruction information which instructs the aperiodic reference signal to be transmitted in the radio resource area; transmitting the aperiodic reference signal by including second instruction information which instructs a second reference signal transmission device, to which a periodic reference signal is to be transmitted in said radio resource area; and receiving the aperiodic reference signal from the first reference signal transmission device in the radio resource area. | 08-29-2013 |
20130272206 | TERMINAL AND BASE STATION, METHOD THEREOF IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a wireless communication system and a method for transmitting the channel state information for Base Stations included in a Coordinated Multi-Point (COMP) set in a terminal when a wireless communication system uses a CoMP scheme. | 10-17-2013 |
20130286849 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING MEASUREMENT PATTERN IN COMP COMMUNICATION SYSTEM - A method of transmitting a measurement pattern for a signal transmission/reception in a CoMP communication system, so as to provide Coordinated Multi-Point (CoMP) communication to a first User Equipment (UE) by a first evolved Node-B (eNB) and a second eNB, the method includes setting a second ABS pattern for a signal transmission/reception with a second UE transmitting/receiving a signal to/from only the first eNB for a predetermined period by the first eNB; setting a first ABS pattern, which corresponds to a subset of the second ABS pattern, as a pattern for a signal transmission/reception with the first UE; setting the subset of the first ABS pattern as a measurement pattern and transmitting the measurement pattern to the first UE; and transmitting a signal for the CoMP communication system according to the measurement pattern. | 10-31-2013 |
20140086223 | METHOD FOR BASE STATION PROVIDING PERIODIC CHANNEL STATE REPORT, AND METHOD FOR USER EQUIPMENT PROVIDING PERIODIC CHANNEL STATE REPORT - The present invention relates to a communication system, and more particularly, to a periodic channel state report in a communication system. | 03-27-2014 |
20140126434 | METHOD AND APPARATUS FOR TRANSMITTING AND PROCESSING CONTROL INFORMATION IN TIME DIVISION DUPLEX SYSTEM USING MULTI-COMPONENT CARRIER - Provided is a method and apparatus for scheduling subframes of two component carriers (CCs) in a time division duplex (TDD) system using a multi-CC. | 05-08-2014 |
20140286292 | E-PDCCH MAPPING, AND METHOD AND APPARATUS FOR TRANSMISSION AND RECEPTION IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to E-PDCCH (Extended PDCCH) mapping, and a method and an apparatus for transmission and reception in a wireless communication system. The E-PDCCH mapping and the transmission method according to one embodiment of the present description, includes the steps of: enabling a base station to perform distributed resource allocation for two or more regions to which the E-PDCCH is transmitted; and mapping the E-PDCCH to be transmitted to a user terminal by applying a mapping rule to resources of one or more regions among the two or more regions. The mapping rule includes at least one of a first mapping rule for mapping the E-PDCCH to a resource within a pre-indicated region in the terminal, and a second mapping rule for mapping the E-PDCCH according to an aggregation level of the E-PDCCH. | 09-25-2014 |
20140321338 | METHOD AND APPARATUS FOR APPLYING PUSCH/PHICH SCHEDULING TIMING IN INTER-BAND TDD TRANSMISSION SCHEMES - The present invention relates to a method and apparatus for applying PUSCH/PHICH scheduling timing in inter-band TDD transmission schemes. According to an embodiment of the present invention, the method for applying PUSCH/PHICH scheduling timing in inter-band TDD transmission schemes by a base station for controlling two or more different TDD bands includes the steps of: selecting a reference Physical Uplink Shared Channel (PUSCH)/Physical Hybrid ARQ Indicator Channel (PHICH) scheduling the timing of a UE, which supports cross-carrier scheduling by using two or more serving cells; transmitting instruction information for instructing the selected reference PUSCH/PHICH scheduling timing to the UE; and allocating an uplink and/or transmitting a PHICH to the UE according to the reference PUSCH/PHICH scheduling timing. | 10-30-2014 |
20150071241 | APPARATUS AND METHOD FOR TRANSMITTING MUTING INFORMATION, AND APPARATUS AND METHOD FOR ACQUIRING CHANNEL STATE USING SAME - The present disclosure relates to an apparatus and a method for transmitting muting information in a wireless communication system, and to an apparatus and a method for acquiring channel state using same. In an exemplary embodiment, muting information includes: a first data field, having a serving cell for receiving from peripheral cells in a multi-cell environment, at least one of a CSI-RS pattern, the number of CSI-RS antenna ports, a CSI-RS duty cycle, and CSI-RS transmission subframe offset information, and using same for expressing the cycle and the offset of muting subframes, which pertain to information on a resource block that can generate interference between the peripheral cells and CSI-RS; and a second data field for expressing a specific muting pattern, which must be muted within the muting subframes, having either 12 bits or 28 bits that display muting application in a bitmap format. | 03-12-2015 |