Lg Electronics Inc.

Yonsei University

Nuriscience Co., Ltd.

Dong Ku Kim

Hyuk Jin Chae

Hyukjin Chae

Byoung Hoon Kim

Jang Hoon Yang

Suck Chel Yang

Han Byul Seo

Hyung Tae Kim

Yo Han Kim

Sung Yoon Cho

Byoung-Yoon Min

Kiyeon Kim

Ki Jun Kim

Kaibin Huang

Soon Suk Roh

Bin Chul Ihm

Wook Bong Lee

Jin Young Jang

Sung Ho Cho

Janghoon Yang

Yohan Kim

Provided are an antibody for sexing sperms and use thereof, and more particularly, a composition for and a method of sexing sperms by using the antibody, and a method of producing an animal of a particular sex. In the present disclosure, it was confirmed that agglutination of Y chromosome sperms may be induced by treatment of the antibody, thereby easily sorting X chromosome sperms and Y chromosome sperms. Therefore, it is possible to produce a large number of customized animals of a particular sex and to selectively produce livestock of a desired sex, and therefore, it is expected to contribute to planed breeding, breeding improvement, and efficient management.

Antibody for determining sex of sperm, and use thereof

A method for transceiving, by a network, a signal through at least two streams in a wireless communication system, includes measuring a channel state for the at least two streams by using a reference signal, determining at least one stream pair including a transmission stream and a reception stream based on the measured channel state, initiating a direction of one or more streams of the at least one stream pair, and transceiving the signal based on the one or more streams of the at least one stream pair.

Method for transceiving signal through at least two data streams in a wireless communication system

A method is provided for determining, by a base station, a Virtual-Multiple-Input Multiple-Output (V-MIMO) cluster in a wireless communication system. The base station determines a transmission efficiency of a temporary cluster and selects one or more entry candidate nodes contained in the temporary cluster. The base station determines an entry transmission efficiency. The entry transmission efficiency is a transmission efficiency when the entry candidate node enters a V-MIMO unit cluster. The base station determines whether to make the entry candidate node enter the V-MIMO unit cluster by comparing the entry transmission efficiency with the transmission efficiency of the temporary cluster.

Method and apparatus for hierarchically cooperative V-MIMO in wireless communication system

A method is provided for transceiving a signal through at least two data streams in a wireless communication system. A first base station measures a wireless channel state for a link with a second base station by using an orthogonal pilot signal. The first base station receives channel status information related to a link of a first mobile station from the first mobile station, channel status information related to a link of a second mobile station from the second mobile station, and channel status information related to a device-to-device (D2D) link from the second mobile station. The D2D link is a channel link between the mobile stations. The first base station exchanges the received channel status information with the second base station, the first mobile station and the second mobile station using a broadcast signal, and determines data stream directions of the first base station and the second base station.

One embodiment of the present invention relates to a method for a first base station transmitting a signal in a wireless communication system, the method comprising the steps of: the first base station receiving channel information from a first terminal belonging to the first base station and a second terminal belonging to a second base station; and transmitting a signal for the first station to at least one terminal from among the first terminal and the second terminal by considering the channel information, wherein if the signal to interference plus noise ratio (SINR) according to the channel information is equal to or higher than a predetermined value, then the signal for the first base station is transmitted to the second signal.

Method and apparatus for transceiving signal in wireless communication system

A method and mobile station are described for reporting channel quality information for multi-cell cooperation. The mobile station receives a channel quality request message for requesting channel quality information from a base station. The channel quality request message indicates that the mobile station is one of a plurality of candidate mobile stations to perform multi-cell cooperation. The mobile station reports the channel quality information to the base station. The channel quality information includes first channel quality information for the base station and second channel quality information for a neighboring base station.

Method and apparatus for data transmission based on multiple cell collaboration

Provided is a method and a device for precoding in a wireless communication system. The method for precoding comprises the following steps: generating a first precoding matrix, W, for deciding the transmission power of one transmission antenna from a plurality of transmission antennas as the maximum power per antenna; generating a zero forcing (ZF) precoding matrix, T, which does not influence the transmission antenna having the power which is decided as the maximum power per antenna, based on the (i&#x2212;1)precoding matrix W(i=2, 3, . . . ); determining &#x3b1;, a constant which has the transmission power of one transmission antenna from the rest of the transmission antennas, which do not have the transmission power as the maximum power per antenna, based on the T; and generating the iprecoding matrix Wbased on the Tand the &#x3b1;.

Method and device for precoding in wireless communication system

Provided is a method and a device for generating a precoding matrix in a wireless communication system. The method for generating the precoding matrix comprises a step of receiving from a terminal feedback including information on the error angle &#x3b8; of channel direction information (CDI), which indicates the direction of a channel direction vector, and a step of generating the precoding matrix based on the information on the error angle &#x3b8; of the CDI, wherein the error angle &#x3b8; of the CDI indicates the angle between the channel direction vector and a quantized channel direction vector, and includes at least one of a channel quantization error component, a channel feedback delay error component, and a channel estimation error component.

Method and device for generating precoding matrix in wireless communication system

The method for channel information feedback based on multiple cell collaboration comprises a step wherein first channel quality information including the channel information between the terminal and base station is transmitted to the base station; a step wherein after the first channel quality information is sent; a channel quality information request message is received from the base station; and a step wherein in response to the channel quality information request message, second channel quality information is sent, including channel information between the terminal and the base station and adjacent base stations.

A feedback method for interference alignment in wireless network having K transmitters and K receivers, the method including: transmitting, by a transmitter n&#x2212;1, a precoding vector of the transmitter n&#x2212;1 (n being an integer between 2 and K&#x2212;1) to a receiver n+1; calculating, by the receiver n+1, a precoding vector of a transmitter n using the precoding vector of the transmitter n&#x2212;1; and transmitting, by the receiver n+1, the precoding vector of the transmitter n to the transmitter n.

Feedback method for interference alignment in wireless network

A method for interference alignment in wireless network having 3 transmitters and 3 receivers which are equipped with M antennas is provided. The method comprising: transmitting, performed by each of the 3 transmitters, a pilot signal known to the 3 receivers; estimating, performed by each of the 3 receivers, each channel from transmitter; transmitting, performed by each of the 3 receivers, feedback information to target transmitter; and determining, performed by transmitter 2 and transmitter 3, a precoding vector; wherein a degree of freedom (DoF) of a transmitter 1 is (M/2&#x2212;&#x3b1;), a DoF of the transmitter 2 or the transmitter 3 is M/2.

Method for interference alignment in wireless network

A power control method for interference alignment in wireless network having K transmitters and K receivers is provided. The method includes: receiving, performed by receiver n (n is an integer, 1&#x2266;n&#x2266;K&#x2212;1), a power indication signal of transmitter n+1 from the transmitter n+1; determining, performed by the receiver n, power of transmitter n; and transmitting, performed by the receiver n, a power indication signal of transmitter n to the transmitter n, wherein the power of transmitter n is determined based on a residual interference of the receiver n, and the power indication signal of transmitter n indicates a minimum transmission power or a maximum transmission power of transmitter n.

Power control method for interference alignment in wireless network

Disclosed are a feedback-transmitting method and data-transmitting method, and a method for generating a codebook that can be used in a system such as LTE-A. When multiple base stations operate in a cooperative mode, using a codebook generated according to the present invention, an existing codebook for single cell transmission can be used to generate a codebook for cooperative transmission.

Method for transmitting feedback information and data using a precoding codebook for multicell cooperative communication in a wireless communication system

A method and apparatus of configuring a multi-cell precoding matrix for a multiple input multiple output (MIMO) operation in a wireless communication system in which a plurality of base stations participate in cooperative communication is provided. A multi-cell precoding matrix is configured using one or more single-cell precoding matrices, and wherein coefficients to be multiplied by the single-cell precoding matrices satisfy a condition in which the product between the multi-cell precoding matrix and a Hermitian matrix of the multi-cell precoding matrix is a unitary matrix. According to the embodiment of the present invention, it is not necessary for all base stations to perfectly know channel information. In addition, a feedback overhead is not high, and complexity is low.

Method and apparatus for cooperative MIMO transmission operation in multicell wireless network

A method for transmitting channel information in a multi-antenna system, the method includes calculating channel quality information (CQI) with respect to each mode, comparing the CQI with respect to each mode to a threshold value with respect to each mode, and transmitting CQI with respect to a mode having higher CQI than the threshold value as channel information. Good performance can be achieved regardless of the number of users or an SNR of users.

Growing community of inventors

Seoul, South Korea

Dong Ku Kim