Samsung Electronics Co., Ltd.

Korea Advanced Institute of Science and Technology

Hyun-Jong Yang

Joo-Hwan Chun

Yu-Seok Kim

Young-Ho Jung

Eun-Seok Ko

Tak-Ki Yu

Kyung-Chun Lee

An apparatus for use in a relay wireless communication system is capable of bidirectional relaying with precoding. A Base Station (BS) includes a plurality of antennas. The BS can receive a relay signal that includes a transmit symbol vector of the BS and a transmit symbol vector of a Mobile Station (MS) from a Relay Station. The BS determines power difference values corresponding to all of symbol vectors available as the transmit symbol vector of the MS. The BS further determines the transmit symbol vector of the MS or per bit Log Likelihood Ratios using the power difference values.

Apparatus and method for bidirectional relaying in a relay wireless communication system

An apparatus and method for supporting relaying in a wireless communication system are provided. The apparatus and method include a transmitting apparatus which acquires channel information between the transmitting apparatus and an RS, pre-encodes a transmission signal to be transmitted to the RS with the channel information, transmits the pre-coded signal to the RS, and acquires, upon receipt of a signal from the RS, a signal transmitted by a receiving apparatus by eliminating the transmission signal transmitted to the RS from the received signal. Accordingly, the apparatus and method improve system capacity gain without adding time resources.

Apparatus and method for relaying in a wireless communication system

Growing community of inventors

Daejeon, South Korea

Hyun-Jong Yang