Samsung Electronics Co., Ltd.

Yonsei University

Jeon Jin Bio Co., Ltd.

Myoung-Seok Kim

Joo-Hyun Lee

Jong-Hyeuk Lee

Chung-Yong Lee

Yung-Soo Kim

Jong-Ho Lee

Sunghwan Kim

Jang-hoon Yoo

June Moon

Soo-han Park

Sung-Hwan Kim

Bong-gi Kim

Eun-Seok Ko

Hoon-Dong Noh

Chungyong Lee

Sung-Yoon Jung

Seong-su Park

Ichiro Morishita

Jung-woo Hong

Jaesang Ham

Mi-Sun Yoon

Byung-Kwon Park

Tae-Hun Lee

Hyuck-Jun Park

Jong-Hwan Lim

Youn-Hwan Hwang

In-Bae Song

Seung-Chun Park

Joo-Heon Hong

Hee-Kyoung Jung

Mi-Hyun Hwang

Hyo-In Yun

Soo-Han Park

Yong-Han Yoon

The present invention relates to performance improvement in a cell edge, particularly, to a method for selecting a precoder for a terminal in a multiple antenna system, wherein the method comprises: performing channel estimation for reference signals of a serving base station and another base station; determining a minimum singular value by using the channel estimation result; and if a complete collaborative feedback structure is used, feeding back a table of the determined, minimum singular value to the base stations.

Apparatus and method for minimizing errors by a cell edge user in a multi-cell communication system

An apparatus and method are provided for precoding by limited cooperation in a wireless communication system. A method of data precoding by a Base Station (BS) in a wireless communication system includes determining a Channel Quality Indicator (CQI) parameter indicating channel size information between the BS and a User Equipment (UE) served by the BS; transmitting the determined CQI parameter through a backhaul to a central unit; receiving, from the central unit, a weight factor based on a CQI parameter from each cell; and determining a precoding vector based on the weight factor. The weight factor represents a relative ratio of an inter-cell environment that is to be interfered by the BS.

Apparatus and method for precoding by limited cooperation in a wireless communication system

A receiving apparatus and method of a Maximum Likelihood (ML) scheme in a Single-Carrier (SC) system are provided. The apparatus includes at least two antennas, at least two Orthogonal Frequency Division Multiplexing (OFDM) demodulators, at least two subcarrier mappers, at least two OFDM modulators, and a detector. The antennas receive signals. The OFDM demodulators convert the signals into frequency domain signals. The subcarrier mappers confirm signals mapped to frequency domain subcarriers. The OFDM modulators convert the signals into time domain signals. The detector constructs at least one set for candidate transmission symbols and detects receive signals through ML detection using the set.

Receiving apparatus and method for maximum likelihood in a single carrier system

An optical pickup apparatus includes a light generating unit to generate a light to record or reproduce information, an objective lens to focus the light generated from the light generating unit onto a disk, and a multi-sectional polarizer disposed on a light path between the light generating unit and the objective lens and divided into a plurality of sectors having their individual optical axes.

Optical pickup apparatus having multi-sectional polarizer

A gel-type bird aversion composition consists of, on the basis of weight, 30 to 90% of a thickening agent, 0.01 to 4% of an ultraviolet ray absorbent, 0.1 to 20% of methyl anthranilate, 0.1 to 10% of cinnamon essential oil, 0.1 to 20% of mint essential oil; 5 to 40% by weight of mineral oil or grease; and 1 to 10% by weight of emulsifier.

Gel-type bird aversion compositions

Growing community of inventors

Seoul, South Korea

Myoung-Seok Kim