公开(公告)号：US20150326295A1

公开(公告)日：2015-11-12

申请号：US14653767

申请日：2013-12-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ho-Joong Kwon ,  Eun-Yong Kim ,  June Moon ,  Keon-Wook Lee

IPC: H04B7/04 ,  H04B7/02

CPC classification number: H04B7/024 ,  H04B7/0486 ,  H04B7/0495 ,  H04L25/03343 ,  H04L25/03891

Abstract: The present invention relates to a method by which a base station performs multiple input and multiple output (MIMO) transmission using antennas of a plurality of cells in a multi-cell wireless communication system, the method comprising the steps of: selecting a rank value and cells for downlink MIMO transmission of a terminal on the basis of measurement information of the base station and the terminal, and determining a precoding matrix according to the rank value; and generating data which is to be transmitted to the terminal as data streams corresponding to the selected rank value, and mapping the data streams to antennas of the selected cells through a precoder so as to transmit the data streams to the terminal.

Abstract translation: 本发明涉及一种基站通过多小区无线通信系统中的多个小区的天线进行多输入多输出（MIMO）传输的方法，该方法包括以下步骤：选择秩值和 基于所述基站和所述终端的测量信息进行终端的下行链路MIMO传输的小区，根据所述等级值确定预编码矩阵; 以及将要发送到终端的数据作为与所选择的等级值相对应的数据流，并且通过预编码器将数据流映射到所选择的小区的天线，以将数据流发送到终端。

公开(公告)号：US09094867B2

公开(公告)日：2015-07-28

申请号：US14041499

申请日：2013-09-30

Applicant: Samsung Electronics Co., Ltd.

Inventor： Eun-Yong Kim ,  Ho-Joong Kwon ,  Joseph Jeon ,  June Moon ,  Young-Goo Han

IPC: H04W24/00 ,  H04W24/08 ,  H04W72/04

CPC classification number: H04W24/08 ,  H04B17/309 ,  H04L1/0026 ,  H04L5/0035 ,  H04W72/04

Abstract: A method and apparatus are provided for determining channel quality in a wireless communication system. The method includes receiving Channel Quality Information (CQI) from a receiver; generating a channel quality reference value by correcting the received CQI using first resource use/nonuse information received from a scheduler that indicates whether an adjacent cell used resources at a previous time, and received signal power information measured in the adjacent cell; and determining a channel quality value at a current time using the generated channel quality reference value and second resource use/nonuse information received from the scheduler that indicates whether an adjacent cell uses resources at the current time.

Abstract translation: 提供了一种用于确定无线通信系统中的信道质量的方法和装置。 该方法包括从接收机接收信道质量信息（CQI）; 通过使用指示相邻小区是否在先前使用的资源的调度器接收到的第一资源使用/不使用信息以及在相邻小区中测量的接收信号功率信息来校正接收到的CQI来生成信道质量参考值; 以及使用生成的信道质量参考值和从调度器接收的指示相邻小区在当前时间是否使用资源的第二资源使用/不使用信息来确定当前时间的信道质量值。

公开(公告)号：US09848371B2

公开(公告)日：2017-12-19

申请号：US14266116

申请日：2014-04-30

Applicant: Samsung Electronics Co., Ltd.

Inventor： Soo-Min Ko ,  Eun-Yong Kim ,  Seung-Joo Maeng ,  Seung-Hee Han

IPC: H04W48/12

CPC classification number: H04W48/12

Abstract: A method of determining a serving sub-cell of a terminal among a plurality of sub-cells by a base station in a wireless communication system is provided. The method includes generating reference signal transmission interval information for each of the sub-cells by configuring a reference signal transmission interval for each of the plurality of sub-cells, and transmitting the reference signal transmission interval information for each of the sub-cells to the corresponding sub-cell, receiving channel status information for at least one sub-cell among the plurality of sub-cells from the terminal, and determining a serving sub-cell of the terminal by using at least one of the reference signal transmission interval information, the channel status information, a reception time of the channel status information, of each of the sub-cells.

公开(公告)号：US09642120B2

公开(公告)日：2017-05-02

申请号：US13907101

申请日：2013-05-31

Applicant: Samsung Electronics Co., Ltd.

Inventor： Joseph Jeon ,  Jee-Woong Kang ,  Ho-Joong Kwon ,  Eun-Yong Kim ,  June Moon ,  Sung-Woo Park

IPC: H04L12/28 ,  H04W72/04 ,  H04B7/04 ,  H04L25/03 ,  H04L5/00 ,  H04J1/16 ,  H04B7/024

CPC classification number: H04W72/0406 ,  H04B7/024 ,  H04B7/0473 ,  H04L5/0035 ,  H04L5/005 ,  H04L5/0057 ,  H04L5/0073 ,  H04L25/03949 ,  H04W88/02

Abstract: A transmission method and apparatus are provided for use in a wireless communication system in which a cell includes a plurality of sub-cells. A Transmission Point (TP) in the wireless communication system includes a transmitter configured to transmit a signal to each of the plurality of sub-cells through a plurality of antennas; a receiver configured to receive uplink control information from a User Equipment (UE) located within at least one of the plurality of sub-cells; and a controller configured to determine a virtual matrix for each of the plurality of sub-cells, to select a precoding matrix according to the virtual matrices of the plurality of sub-cells, to determine a cooperative transmission mode or a normal transmission mode, based on the received uplink control information, and to control the transmitter to perform downlink transmission on a sub-cell basis through the virtual matrices of the sub-cells according to the determined transmission mode.

公开(公告)号：US20170208578A1

公开(公告)日：2017-07-20

申请号：US15473766

申请日：2017-03-30

Applicant: Samsung Electronics Co., Ltd.

Inventor： Joseph JEON ,  Jee-Woong Kang ,  Ho-Joong Kwon ,  Eun-Yong Kim ,  June Moon ,  Sung-Woo Park

IPC: H04W72/04 ,  H04L5/00 ,  H04B7/04 ,  H04B7/024

CPC classification number: H04W72/0406 ,  H04B7/024 ,  H04B7/0473 ,  H04L5/0035 ,  H04L5/005 ,  H04L5/0057 ,  H04L5/0073 ,  H04L25/03949 ,  H04W88/02

Abstract: A transmission method and apparatus are provided for use in a wireless communication system in which a cell includes a plurality of sub-cells. A Transmission Point (TP) in the wireless communication system includes a transmitter configured to transmit a signal to each of the plurality of sub-cells through a plurality of antennas; a receiver configured to receive uplink control information from a User Equipment (UE) located within at least one of the plurality of sub-cells; and a controller configured to determine a virtual matrix for each of the plurality of sub-cells, to select a precoding matrix according to the virtual matrices of the plurality of sub-cells, to determine a cooperative transmission mode or a normal transmission mode, based on the received uplink control information, and to control the transmitter to perform downlink transmission on a sub-cell basis through the virtual matrices of the sub-cells according to the determined transmission mode.

公开(公告)号：US20150245233A1

公开(公告)日：2015-08-27

申请号：US14630559

申请日：2015-02-24

Applicant: Samsung Electronics Co., Ltd.

Inventor： Soo-Min Ko ,  Eun-Yong Kim

IPC: H04W24/08 ,  H04W28/02

CPC classification number: H04W24/08 ,  H04L43/0876 ,  H04W24/04 ,  H04W28/0284 ,  H04W84/02

Abstract: Provided is a method and apparatus for efficiently measuring a load of a cell in a wireless communication system. The method includes dividing terminals in a cell into terminal groups that are different in resource allocation scheme, and calculating the number of wireless resources that the terminals effectively occupy based on the amount of required wireless resources for each terminal group; and measuring a load of the cell using the calculated number of wireless resources.

Abstract translation: 提供了一种用于有效测量无线通信系统中的小区的负载的方法和装置。 该方法包括将小区中的终端划分为资源分配方案不同的终端组，并且基于每个终端组的所需无线资源的数量来计算终端有效占用的无线资源的数量; 以及使用所计算的无线资源数量来测量小区的负载。

公开(公告)号：US20140321299A1

公开(公告)日：2014-10-30

申请号：US14041499

申请日：2013-09-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Eun-Yong Kim ,  Ho-Joong Kwon ,  Joseph Jeon ,  June Moon ,  Young-Goo Han

IPC: H04W24/08

CPC classification number: H04W24/08 ,  H04B17/309 ,  H04L1/0026 ,  H04L5/0035 ,  H04W72/04

Abstract: A method and apparatus are provided for determining channel quality in a wireless communication system. The method includes receiving Channel Quality Information (CQI) from a receiver; generating a channel quality reference value by correcting the received CQI using first resource use/nonuse information received from a scheduler that indicates whether an adjacent cell used resources at a previous time, and received signal power information measured in the adjacent cell; and determining a channel quality value at a current time using the generated channel quality reference value and second resource use/nonuse information received from the scheduler that indicates whether an adjacent cell uses resources at the current time.

Abstract translation: 提供了一种用于确定无线通信系统中的信道质量的方法和装置。 该方法包括从接收机接收信道质量信息（CQI）; 通过使用指示相邻小区是否在先前使用的资源的调度器接收到的第一资源使用/不使用信息以及在相邻小区中测量的接收信号功率信息来校正接收到的CQI来生成信道质量参考值; 以及使用生成的信道质量参考值和从调度器接收的指示相邻小区在当前时间是否使用资源的第二资源使用/不使用信息来确定当前时间的信道质量值。