Electronics and Telecommunications Research Institute

Hyun-Kyu Chung

Sok-Kyu Lee

Woo-Yong Lee

Kap-Seok Chang

Kwang-Chun Lee

Hyoung-Jin Kwon

Kapseok Chang

Wooyong Lee

Kyeongpyo Kim

Il-Gu Lee

Hee-Soo Lee

Dae-Sik Kim

Heesoo Lee

Heon-Kook Kwon

Byung-Jang Jeong

Myung-Don Kim

Sung-Jun Lee

Bang-Won Seo

Yong-Sun Kim

Jong-Ee Oh

Sung-Geun Jin

Hyo-Jin Lee

Seong-Rag Kim

Hoo-Sung Lee

Seung-Eun Hong

Hyojin Lee

Jae-Joon Park

Jun-Young Nam

Young-Hoon Kim

Seung-Chan Bang

Tae-Joong Kim

Jae-Ho Jung

Jae-Young Ahn

Joon-Hyung Kim

Il-Gyu Kim

Byung-Jae Kwak

Jae-Heung Kim

In-Ho Lee

Yu-Ro Lee

Yun-Joo Kim

Chung-Gu Kang

Taegyun Noh

Bangwon Seo

Jung-Hoon Oh

Tae-Gyun Noh

Jung-Bo Son

Min-Ho Cheong

Sung-Woo Choi

Gweon-Do Jo

Bong-Hyuk Park

Jee-Yon Choi

Jae-Woo Park

Jae-Kyun Kwon

In-Sook Park

Don-Sung Oh

Minjoong Rim

Hyun-Seok Ryu

Kyung-Mi Park

Dongwoo Kim

Hong-Sup Lee

Sunggeun Jin

Hyoungjin Kwon

Disclosed is a technique related to a method and apparatus for generating a preamble and a data frame for wireless communication, and to a synchronization estimation method using the preamble. According to the technique, a method for generating a frame for wireless communication is disclosed, wherein the method comprises: a step of generating a modified sequence using a first base sequence for synchronization estimation; and a step of allocating the first base sequence and the modified sequence to the frequency domain of a first timeslot to generate a preamble. The modified sequence includes a complex conjugated sequence of the first base sequence or a sequence having a code different from that of the first base sequence.

Method and apparatus for generating/transmitting a frame for wireless communication, and synchronization estimation method for wireless communication

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

A method and apparatus of accessing a channel in a wireless local area network is provided. A destination station receives a request to send (RTS) frame to allocate a network allocation vector from a source station over a first bandwidth and transmits a clear to send (CTS) frame over a second bandwidth to the source station in response to the RTS frame. The second bandwidth is dynamically determined when a first parameter has a predetermined value.

Communication method, wireless station and communication device for receving frame using certain bandwidth and spatial stream

The present invention relates a method and apparatus for transmitting/receiving data using multiple codewords in a communication system using SC-FDMA (single carrier frequency division multiple access). A transmitter generates the multiple codewords for user data and transmits the generated multiple codewords. A receiver receives the multiple codewords and sequentially performs decoding and SIC (successive interference cancellation) on the received multiple codewords. Therefore, this structure can minimize a PAPR (peak to average power ratio) and considerably reduces interference between symbols in a frequency selective fading environment.

Method and apparatus for transmitting/receiving multiple codewords in SC-FDMA system

Power saving method in wireless communication system

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

Growing community of inventors

Daejeon, South Korea

Hyun-Kyu Chung