An apparatus and method are provided for transmitting high-speed data through a plurality
of transmitter antennas using a relay network, receiving signals transmitted from the plurality …

A relay node (or relay station) operates as an intermediary entity in a transmission between
a base station and a mobile station based on its position in a cell and the mobile station's …

(57) ABSTRACT A method and system for transmitting and receiving signals to increase
transmission efficiency in a wireless communi cation system using multiple antennas are …

A radio relay system is disclosed that is capable of preventing communication degradation
in a case where radio signals are relayed using the same frequency band in a mobile …

(57) ABSTRACT A relay station includes a signal generation unit configured to generate a
signal in the relay station and a receiving unit configured to receive a signal from a first …

An apparatus and method for performing Automatic Retransmission reQuest (ARQ) of a
Relay Station (RS) in a wireless communication system using a relay scheme are provided …

(57) ABSTRACT A mobile communication system includes at least one upper radio station
(1) and a relay station (2). The relay station (2) performs a radio relay between a lower radio …

A data transmission and reception method in a cooperative communication system is
provided. The data transmission method of a base station in a cooperative communication …

(57) ABSTRACT A method of operating a relay station is provided. The method includes:
receiving a beacon signal transmitted by a user equipment; measuring the beacon signal …

(57) ABSTRACT A method of transmitting reference signals in a wireless com munication
system for cooperative communication is pro vided. The wireless communication system …