Patent application number | Description | Published |
20110170623 | APPARATUS AND METHOD FOR CHANNEL INFORMATION FEEDBACK, BASE STATION RECEIVING THE CHANNEL INFORMATION, AND COMMUNICATION METHOD OF THE BASE STATION - Disclosed is a wireless communication system including an apparatus and a method for feeding back channel information of a User Equipment (UE); a Base Station (BS) for receiving channel information of a UE and for communicating with the UE; and a communication method of the BS which can dynamically switch between Single-User Multiple-Input Multiple-Output (SU-MIMO) and Multiple-User Multiple-Input Multiple-Output (MU-MIMO) access schemes. | 07-14-2011 |
20120093089 | METHOD FOR SELECTING PRECODER IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS USING THE SAME, FEEDBACK METHOD OF CHANNEL INFORMATION OF TERMINAL, AND METHOD FOR RECEIVING CHANNEL INFORMATION OF BASE STATION - Disclosed is related to a wireless communication system, and is a method and an apparatus for selecting a UE and a precoder based on a measurement during a determined period after receiving information extracted by using channel state information from each UE in a MU-MIMO communication system, and a switching apparatus and method between modes using the same. Accordingly, the BS performs a long term measurement based precoding by using only the same feedback information (for example, PMI) as that of a SU-MIMO mode, so that a set of UEs to be supported by a MIMO and precoders for each UE, which prevent or minimize interference between UEs, may be determined without an increase of a feedback overhead. | 04-19-2012 |
20120147985 | FEEDBACKING CHANNEL INFORMATION IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to feedback channel information in wireless communication system. | 06-14-2012 |
20120201282 | PRECODING AND FEEDBACK CHANNEL INFORMATION IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to precoding and feedback channel information in wireless communication system. | 08-09-2012 |
20120213191 | METHOD FOR MAPPING AND TRANSMITTING DEMODULATION REFERENCE SIGNAL (DM-RS), COMMUNICATION TERMINAL DEVICE USING SAME, APPARATUS FOR TRANSMITTING DM-RS, AND METHOD FOR RECEIVING DM-RS - The present invention relates to a method for mapping and transmitting demodulation reference signal (DM-RS) and a communication terminal device, and more particularly to a method for mapping and transmitting DM-RS which uniformly maintains reception reliability of DM-RS for each layer in a process for transmitting different DM-RSs for odd-numbered layers. | 08-23-2012 |
20120219091 | METHOD AND TRANSMITTER FOR TRANSMITTING FOR TRANSMITTING SIGNAL AND RECEIVER THEREOF IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to precoding the signal in wireless communication system. | 08-30-2012 |
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 |
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 |
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 |
20140328425 | METHOD AND TRANSMITTER FOR TRANSMITTING SIGNAL AND RECEIVER THEREOF IN WIRELESS COMMUNICATION SYSTEM - A transmitter includes a layer mapper and a precoder. The layer mapper is configured to map 2 codewords to 3 layers to output a mapped set of 3 symbols. A first codeword is mapped into one layer, and a second codeword is mapped into two layers. The precoder is configured to precode the mapped set of 3 symbols using a precoding matrix that distributes the mapped set of 3 symbols across 4 antenna ports so that each codeword is distributed across 2 antenna ports. | 11-06-2014 |