| Patent application number | Description | Published |
|---|
| 20110111784 | METHOD OF ALLOCATING UPLINK RESOURCES IN WIRELESS COMMUNICATION SYSTEM - A method of allocating uplink resources in a wireless communication system is provided. The method comprises generating a first message which has a preamble and adaptively further includes resource request information based on a communication state with a base station and transmitting the first message to the base station. | 05-12-2011 |
| 20110164572 | Method of Transmitting Control Signal in Multi-Cell Cooperative Wireless Communication System - A method and apparatus of transmitting a control signal in a multi-cell cooperative wireless communication system is provided. The method comprises transmitting to a first user equipment a first control signal for first downlink data by a serving base station and transmitting to the first user equipment a second control signal for second downlink data received from a neighboring base station by the serving base station, wherein the first downlink data is data for the first user equipment, and the second downlink data is data for a second user equipment in a neighbor cell and is restorable by the first user equipment. | 07-07-2011 |
| 20110164587 | METHOD OF REQUESTING RADIO RESOURCE IN WIRELESS COMMUNICATION SYSTEM - A method of requesting a radio resource in a wireless communication system is provided. The method comprises setting a timer's expiry time, transmitting a radio resource request message to a base station, starting the timer and retransmitting the radio resource request message to the base station if a radio resource allocation message is not received until the timer expires, wherein the expiry time may be set variably based on a communication state. | 07-07-2011 |
| 20110170513 | SCHEDULING METHOD IN WIRELESS COMMUNICATION SYSTEM USING RELAY STATION - A scheduling method in a wireless communication system using a relay station is provided. The method includes receiving scheduling information from the relay station, and performing scheduling by using the scheduling information, wherein a scheduling metric is determined for each mobile station or each connection when the scheduling is performed. Accordingly, scheduling can be effectively performed since a base station can recognize a state of a relay station. | 07-14-2011 |
| 20110171992 | METHOD AND APPARATUS OF CONTROLLING UPLINK POWER FOR MULTI-CELL COOPERATIVE SYSTEM - A method and apparatus of controlling uplink transmit power is provided. An estimated path-loss value for each of downlink signals from a control base station and one or more neighboring base stations is calculated. A signal path-loss value by using the calculated plurality of estimated path-loss values is obtained. An open-loop power control parameter by using the signal path-loss value is obtained. Uplink power can be controlled by considering cooperative communication of a plurality of base stations in a multi-cell cooperative radio communication system. | 07-14-2011 |
| 20110176585 | METHOD FOR RELAYING OF RELAY HAVING MULTIPLE ANTENNA IN WIRELESS COMMUNICATION SYSTEM - A method for relaying performed by a relay station is provided. The method includes receiving a signal from a source station through at least one receive antenna, defining a connection structure between the at least one receive antenna and at least one transmit antenna, processing the signal by using a midcoding matrix, and transmitting the processed signal to a destination station through the at least one transmit antenna. Quality of signal transmission can be enhanced. | 07-21-2011 |
| 20110194495 | Method for Managing Radio Resources for Uplink and Downlink in Wireless Communication System - A method for managing radio resources for an uplink and a downlink in a wireless communication system is provided. The method for managing radio resources may be applied to a system based on a heterogeneous cell deployment scenario. The heterogeneous cell deployment scenario implies that a plurality of cells coexist in the wireless communication system, and transmit power, processing capacity, and/or cell coverage are different from one cell to another. In the method for managing radio resources, a mobile station included in the wireless communication system establishes an uplink and a downlink with the same base station. In addition, an asymmetric management scheme is used in which a radio resource management scheme used for the uplink is different from a radio resource management scheme used for the downlink. Accordingly, each mobile station can use a different optimal radio resource management scheme for the uplink and the downlink, each mobile station and link can be effectively controlled, and usage efficiency of radio resources can be improved. | 08-11-2011 |
| 20110211523 | METHOD FOR TRANSMITTING ACKNOWLEDGEMENT/NON-ACKNOWLEDGEMENT IN WIRELESS COMMUNICATION SYSTEM EMPLOYING RELAY STATION - A method for transmitting acknowledgement (ACK)/non-acknowledgement (NACK) in a wireless communication system employing a relay station is provided. The method includes receiving data, and transmitting an ACK/NACK for the data according to a specific rule when the ACK/NACK cannot be transmitted in the synchronous ACK/NACK transmission rule. It is possible to solve a problem caused by ACK/NACK transmission between a base station and a relay station. | 09-01-2011 |
