Electronics and Telecommunications Research Institute

Samsung Electronics Co., Ltd.

Kt Corporation

Sk Telecom Company, Ltd.

Ktfreetel Co., Ltd

Kap-Seok Chang

Young-Hoon Kim

Seung-Chan Bang

Il-Gyu Kim

Hyeong-Geun Park

Woo-Yong Lee

Hyoung-Jin Kwon

Young-Jo Ko

Hyo-Seok Yi

Hyun-Kyu Chung

Kyeongpyo Kim

Nam-Il Kim

Yong Sun Kim

Seung Eun Hong

Sung-Geun Jin

Yong-Sun Kim

Seung-Eun Hong

Moon-Sik Lee

Hye-Kyung Jwa

Eun-Jeong Shin

A data transmission method of a source node in a cooperative communication system includes: performing a beamforming to a relay node; transmitting data to the relay node; performing a beamforming to a destination node; and transmitting data to the destination node.

Method for transmitting and receiving data in cooperative communication system, and cooperative communication method

When a terminal generates an uplink signal in a communication system, the terminal hops a sequence for differentiating itself from another terminal with time. The terminal generates the uplink signal by multiplying a transmission symbol by a sequence of a transmission time corresponding to the transmission symbol.

Method and apparatus for transmitting uplink signal, and method and apparatus for generating uplink signal in communication system

Method for sending and receiving data on a cooperative communications system and a cooperative communications method

A signal transmitting method according to an exemplary embodiment of the present invention includes channel-coding broadcasting channel information by using a first scrambling code in a first frame within a broadcasting channel information updating period including a plurality of frames, and channel-coding the broadcasting channel information by using a second scrambling code in a second frame within the broadcasting channel information updating period. The second scrambling code is different from the first scrambling code.

Method and apparatus for transmitting signal

A method for performing a wideband short-range wireless communication which may use a directional antenna in a millimeter wave band, and the method for wideband short-range wireless communication according to an embodiment may determine a change of a relay operation type based on a link quality between a source node and a relay node, a link quality between the relay node and the destination node, and a link quality between the source node and the destination node, transmit a relay operation change (ROC) request message in response to a determination of the change of the relay operation type, and receive an ROC response message corresponding to the ROC request message.

Wideband near field communication method

Provided is a communication method of a coordinator, the method including: receiving a relay search request frame for requesting a search for at least one relay station between a destination station and a source station; and transmitting, in response to the relay search request frame, a relay search response frame including a list of the at least one relay station so that the source station selects a target relay station from the at least one relay station.

Communication method for a coordinator, a relay device, a source device and a destination device included in a wireless network

Provided is an apparatus and method for performing a wideband short-range wireless communication using a directional antenna in a millimeter wave band, and the method for wideband short-range wireless communication according to an embodiment may determine a change of a relay operation type based on a link quality between a source node and a relay node, a link quality between the relay node and the destination node, and a link quality between the source node and the destination node, transmit a relay operation change (ROC) request message in response to a determination of the change of the relay operation type, and receive an ROC response message corresponding to the ROC request message.

Wideband near field communication apparatus and method

Growing community of inventors

Daejeon, South Korea

Kap-Seok Chang