| Patent application number | Description | Published |
|---|
| 20100153811 | METHOD FOR DECODING USING DYNAMIC SCHEDULING SCHEME FOR LOW DENSITY PARITY CHECK CODES AND APPARATUS THEREOF - Disclosed is a decoding method and device for low density parity check codes using dynamic scheduling. The low density parity check codes are sequentially decoded, and the messages are scheduled in the descending order of the difference between values before and after updating the message transmitted from the variable node to the check node. | 06-17-2010 |
| 20100265936 | METHOD AND DEVICE FOR ACQUIRING SYNCHRONIZATION BETWEEN NODES AND METHOD FOR ORGANIZING MULTIPLE PHYSICAL CHANNELS - A method for acquiring synchronization between nodes and configuring multiple physical channels in order to improve performance in the ad-hoc/mesh network is disclosed. | 10-21-2010 |
| 20110142163 | APPARATUS AND METHOD FOR MAPPING SYMBOL - In a symbol mapping method, transmission data is encoded to output information bits and redundancy bits. The information bits and the redundancy bits are mapped to a symbol according to a first mapping scheme at a first transmission, and the information bits and the redundancy bits are mapped to a symbol according to a second mapping scheme at a second transmission. | 06-16-2011 |
| 20110149910 | METHOD FOR COMMUNICATION CHANNEL CONTROL - A base station designates an identification symbol section in each communication frame in order to identify a plurality of transceivers, transmits a predetermined transceiver identification signal through subcarriers granted to the plurality of transceivers by granting a combination of subcarriers to be used in an identification symbol section to each of the plurality of transceivers, generates and stores terminal connection information for each of the plurality of transceivers by receiving information on evaluation of reception quality for the transceiver from the terminal and using the received information, and allocates a communication resource so as to use the subcarrier of the transceiver connected with the terminal for communicating with the terminal. | 06-23-2011 |
| 20110150129 | DEVICE FOR GENERATING CODEBOOK, METHOD FOR GENERATING CODEBOOK, AND METHOD FOR TRANSMITTING DATA - A device for generating a transmission codebook in a communication system including a multi-input multi-output (MIMO) antenna according to an embodiment of the present invention includes: a frequency determiner that determines a frequency to allow the transmission codebook to have an optimal characteristic; a precoding matrix generator that generates a precoding matrix on the basis of the frequency; and a codebook generator that generates a retransmission codebook to be used for retransmission on the basis of the precoding matrix and generates the transmission codebook on the basis of the retransmission codebook. | 06-23-2011 |
| 20110158347 | METHOD AND TRANSMITTER FOR ITERATIVELY MODIFYING BEAMFORMING VECTOR - The present invention provides data transmission capacity that is optimized in a communication environment by iteratively modifying a beamforming vector by linearly coupling selfish beamforming with unselfish beamforming using feedback information. The transmitter for modifying the beamforming vector iteratively includes: a feedback receiving module that receives feedback information from a receiver: and a vector determination module that determines an initial beamforming vector by coupling a first vector for the selfish beamforming with a second vector for the unselfish beamforming at the time of initial beamforming, and corrects a coupling ratio of the first vector and the second vector of the beamforming vector with reference to the received feedback information whenever the beamforming is modified. | 06-30-2011 |
| 20110206033 | COMMUNICATION METHOD BETWEEN WIRELESS NODES - In a wireless communication system, when a transmission node has data to be transmitted to a reception node, it checks an acknowledgement slot of the current communication frame and transmits information regarding a reception available acknowledgement slot to the reception node through a request-to-send (RTS) slot in the current communication frame, and the reception node transmits information regarding the data slot available for receiving among at least one data slot corresponding to the reception available acknowledgement slot to the transmission node through a clear-to-send (CTS) slot corresponding to the data request slot in the current communication frame. Thereafter, the transmission node transmits data to the reception node through a reservation data slot of the subsequent communication frame until the message transmission fails or finishes. | 08-25-2011 |
| 20110243204 | PRECODING METHOD AND DEVICE - A method for a transmitting terminal in a multi-user multi-antenna environment to perform precoding includes: receiving feedback information from a plurality of receiving terminals; estimating a channel between the transmitting terminal and the plurality of receiving terminals by using the feedback information; and generating a plurality of transmission symbols by applying a first nonlinear precoding method and a second nonlinear precoding method to a plurality of symbols and the estimated channel to be transmitted to the plurality of receiving terminals. The first nonlinear precoding method is used to eliminate interference between subchannels of the same receiving terminal, and the second nonlinear precoding method is used to eliminate interference between the receiving terminals. | 10-06-2011 |
| 20110243273 | TRANSMITTING APPARATUS IN MULTIPLE INPUT MULTIPLE OUTPUT SYSTEM - Provided are a transmitting apparatus and a transmitting method in a multiple input multiple output system. A power allocation controller includes a block Tomlinson-Harashima precoder (BTHP) that precodes and outputs data to be transmitted to each user in a nonlinear scheme. The BTHP removes and outputs inference signals from data for each user based on the channel information that is fed back from the users. The data for each user output from the BTHP are allocated with power by the power allocation controller. The power allocation controller calculates power allocation parameters so that receiving minimum distances at receiving ends for each user that receive data through the MIMO antennas are the same, and allocates the calculated parameters to data for each user. | 10-06-2011 |
