| Patent application number | Description | Published |
|---|
| 20100054173 | RELAY STATION AND METHOD OF OPERATING THE SAME - A relay station and a method of operating a relay station are disclosed. The method includes decoding a received signal to restore the received signal into an information packet, and obtaining a first probability sequence representing probability information of respective information bits constituting the information packet, encoding the information packet to obtain a coded packet, and obtaining a second probability sequence representing probability information of respective coded bits constituting the coded packet by using the first probability sequence, and obtaining a modulated symbol by using the second probability sequence. | 03-04-2010 |
| 20100080269 | METHOD OF TRANSMITTING REFERENCE SIGNALS FOR COOPERATIVE WIRELESS COMMUNICATION SYSTEM AND METHOD OF ALLOCATING RADIO RESOURCES FOR RELAY-BASED WIRELESS COMMUNICATION SYSTEM - A method of transmitting reference signals in a wireless communication system for cooperative communication is provided. The wireless communication system defines a plurality of transmission patterns of the reference signals each having a different pattern, and each of a plurality of base stations and/or each of a base station and a relay station participating in the cooperative communication transmit the reference signals based on one transmission pattern selected from the plurality of transmission patterns of the reference signals. | 04-01-2010 |
| 20100322180 | METHOD FOR TRANSMITTING SCHEDULING INFORMATION IN MOBILE COMMUNICATION SYSTEM AND FEMTOCELL BASE STATION APPARATUS USING THE SAME - A method for transmitting scheduling information in a mobile communication system and a femtocell base station apparatus using the same are provided. Scheduling information can be transmitted using a hierarchical scheduling scheme in which a femtocell base station is allocated resources from a macrocell base station and the femtocell base station then allocates resources to femto users within its own resource region. | 12-23-2010 |
| 20110211547 | METHOD OF TRANSMITTING DATA IN MULTI-CELL COOPERATIVE WIRELESS COMMUNICATION SYSTEM - A method of transmitting data in a multi-cell cooperative wireless communication system is provided. The method includes splitting data to be transmitted into first data and second data, determining a first beamforming vector for the first data and a second beamforming vector for the second data, and transmitting the first data by using the first beamforming vector and the second data by using the second beamforming vector. The present invention provides a data transmission method which does not cause deterioration of overall system performance while minimizing inter-cell interference. | 09-01-2011 |
| 20110223927 | METHOD OF RELAYING DATA - A method of relaying data in a relay station of a wireless communication system based on a radio frame consisting of a plurality of downlink subframes and a plurality of uplink subframes is provided. The method includes receiving, from a base station, scheduling information comprising information regarding a transmission time for transmitting uplink data from the relay station to the base station, receiving the uplink data from a user equipment, and relaying, to the base station, the uplink data at the transmission time determined depending on the scheduling information. Accordingly, efficiency of radio resource usage can be increased in the wireless communication system employing the relay station. | 09-15-2011 |
| 20110223928 | METHOD AND APPARATUS OF SCHEDULING IN MULTI-CELL COOPERATIVE WIRELESS COMMUNICATION SYSTEM - A method and an apparatus of scheduling in a multi-cell cooperative wireless communication system is provided. Scheduling is performed, and scheduling results are transmitted to a neighbor base station (BS). The scheduling results comprise certain information for scheduling to be sequentially performed among base stations. Inter-cell interference can be reduced and scheduling can be performed simply by exchanging signals without a central scheduler. | 09-15-2011 |
| 20110228709 | METHOD AND APPARATUS FOR RELAYING DATA IN WIRELESS COMMUNICATION SYSTEM BASED ON TDD - The present invention provides a method and an apparatus of relaying data in a wireless communication system based on Time Division Duplex (TDD). A relay station receives downlink data from a base station in an uplink subframe and relays the downlink data to at least one mobile station. Accordingly, the efficiency of resource allocation for a relay station can be improved. | 09-22-2011 |
| 20110235567 | APPARATUS AND METHOD FOR TRANSMITTING DATA USING MULTIPLE ANTENNAS - A data transmission apparatus having a plurality of antennas in a frequency division multiplexing system is provided. The apparatus includes a demultiplexer for splitting first-type data into plural pieces of sub-data, a first precoder for mapping the plural pieces of sub-data to the plurality of antennas by applying a first weight, a second precoder for mapping second-type data with an attribute different from the first-type data to the plurality of antennas by applying a second weight, and a transmit processor for transmitting the first-type data together with the second-type data through the plurality of antennas. Coverage can be expanded, and different types of services can be concurrently provided and system management can be achieved with increased flexibility and reliability. | 09-29-2011 |
| 20110235571 | METHOD AND APPARATUS OF TRANSMITTING BACKHAUL SIGNAL IN WIRELESS COMMUNICATION SYSTEM INCLUDING RELAY STATION - A method and apparatus of transmitting backhaul signals performed by a relay station in a wireless communication system is provided. A relay station performs scheduling with a base station in order to transmit the backhaul signals, and transmitting the backhaul signals to the base station using both resources for downlink transmission and resources for uplink transmission based on the scheduling. | 09-29-2011 |
