公开(公告)号：US20080025336A1

公开(公告)日：2008-01-31

申请号：US11782629

申请日：2007-07-24

Applicant: Myeon-Kyun CHO ,  Sung-Jin KIM ,  Ho-Jin KIM ,  Cheol-Woo YOU

Inventor： Myeon-Kyun CHO ,  Sung-Jin KIM ,  Ho-Jin KIM ,  Cheol-Woo YOU

IPC: H04J3/26

CPC classification number: H04W72/085 ,  H04B7/0452 ,  H04B7/0632 ,  H04B7/0697 ,  H04L1/0026

Abstract: An apparatus and method for scheduling a multiuser and a single user in a Multiple Input Multiple Output (MIMO) system are provided. The method for scheduling a multiuser and a single user at BS in MIMO system includes determining ratios of MultiUser-MIMO (MU-MIMO) chunks and Single User-MIMO (SU-MIMO) chunks to allocation chunks, determining the MU-MIMO chunks in the determined ratio and the remaining chunks as the SU-MIMO chunks, transmitting chunk information relating to the determined chunks to one or more Mobile Stations (MSs), and, when Channel Quality Information (CQI) feedback information relating to the determined MU-MIMO chunks and the determined SU-MIMO chunks is received from the MSs, allocating chunks and streams for MU-MIMO/SU-MIMO to users who maximize overall capacity using the CQI feedback information.

Abstract translation: 提供了一种用于在多输入多输出（MIMO）系统中调度多用户和单个用户的装置和方法。 在MIMO系统中在BS处调度多用户和单个用户的方法包括：将多用户MIMO（MU-MIMO）块和单用户MIMO（SU-MIMO）块的比率确定为分组块，确定MU-MIMO块中的MU-MIMO块 确定的比率和剩余的块作为SU-MIMO块，将与所确定的块相关的块信息发送到一个或多个移动站（MS），以及当与确定的MU-MIMO相关的信道质量信息（CQI）反馈信息 块，并且从MS接收确定的SU-MIMO块，将用于MU-MIMO / SU-MIMO的块和流分配给使用CQI反馈信息最大化总体容量的用户。

公开(公告)号：US20070249401A1

公开(公告)日：2007-10-25

申请号：US11702907

申请日：2007-02-06

Applicant: Sung-Jin Kim ,  Myeon-Gyun Cho ,  Ho-Jin Kim

Inventor： Sung-Jin Kim ,  Myeon-Gyun Cho ,  Ho-Jin Kim

IPC: H04M1/00

CPC classification number: H04B7/0452 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0689 ,  H04B7/0691

Abstract: A method is provided a method for transmitting data in a MIMO communication system. The method includes receiving feedback information including channel quality information of transmission antennas from terminals; selecting one of a multi-user mode and a single user mode according to the channel quality information; extracting information for the selected mode from the feedback information; selecting at least one terminal and a preceding matrix of at least one transmission antenna through which data is transmitted according to the extracted information and the selected mode; and transmitting data using the selected precoding matrix and information of the selected terminal.

Abstract translation: 提供了一种在MIMO通信系统中发送数据的方法。 该方法包括从终端接收包括发送天线的信道质量信息的反馈信息; 根据信道质量信息选择多用户模式和单用户模式之一; 从反馈信息中提取所选模式的信息; 根据所提取的信息和所选择的模式，选择数据被发送的至少一个发射天线的至少一个终端和前一矩阵; 以及使用所选择的预编码矩阵和所选择的终端的信息来发送数据。

公开(公告)号：US20070207742A1

公开(公告)日：2007-09-06

申请号：US11706627

申请日：2007-02-15

Applicant: Dong-Ho Kim ,  Ho-Jin Kim ,  Dong-Ho Cho ,  Yung-Soo Kim ,  Ju-Yeop Kim ,  O-Hyun Jo ,  Ho-Won Lee ,  Tae-Soo Kwon ,  Sik Choi

Inventor： Dong-Ho Kim ,  Ho-Jin Kim ,  Dong-Ho Cho ,  Yung-Soo Kim ,  Ju-Yeop Kim ,  O-Hyun Jo ,  Ho-Won Lee ,  Tae-Soo Kwon ,  Sik Choi

IPC: H04B7/00

CPC classification number: H04L1/0025 ,  H04B7/12 ,  H04B17/24 ,  H04B17/318 ,  H04B17/336 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0027

Abstract: A method of reporting channel state information by a Mobile Station (MS) in a mobile communication system is disclosed. The method includes measuring a state of a downlink channel for the entire frequency band, determining a first Modulation and Coding Scheme (MCS) level corresponding to the measured channel state, and reporting the determined MCS level to a Base Station (BS).

Abstract translation: 公开了一种在移动通信系统中由移动台（MS）报告信道状态信息的方法。 该方法包括测量整个频带的下行链路信道的状态，确定与所测量的信道状态相对应的第一调制和编码方案（MCS）级别，并将确定的MCS级别报告给基站（BS）。

公开(公告)号：US20070049208A1

公开(公告)日：2007-03-01

申请号：US11504798

申请日：2006-08-15

Applicant: Sung-Jin Kim ,  Jun Li ,  Ki-ho Kim ,  Ho-Jin Kim

Inventor： Sung-Jin Kim ,  Jun Li ,  Ki-ho Kim ,  Ho-Jin Kim

IPC: H04B7/00

CPC classification number: H04B7/0626 ,  H04B7/0634 ,  H04W72/1257

Abstract: A mobile communication apparatus that utilizes multiple base station/mobile station antennas and a mobile communication method performed therein are provided. The mobile communication apparatus includes a base station having at least two antennas and at least two mobile stations having at least one antenna, respectively. The base station restores weight information and channel status information from feedback signals received from the mobile stations, determines downlink investigation information that results in maximum transmission channel capacity based on the restored weight information and channel status information, selects mobile stations for simultaneous transmission based on the downlink investigation information, and processes data to be transmitted to the selected mobile stations based on the downlink investigation information.

Abstract translation: 提供了利用多个基站/移动台天线的移动通信装置及其中执行的移动通信方法。 移动通信装置包括具有至少两个天线的基站和至少两个具有至少一个天线的移动台。 基站从从移动站接收到的反馈信号中恢复加权信息和信道状态信息，基于恢复的权重信息和信道状态信息确定导致最大传输信道容量的下行链路调查信息，基于 下行链路调查信息，并且基于下行链路调查信息处理要发送到所选择的移动站的数据。

公开(公告)号：US20060098754A1

公开(公告)日：2006-05-11

申请号：US11256251

申请日：2005-10-21

Applicant: Sung-Jin Kim ,  Ye-Hoon Lee ,  Ho-Jin Kim ,  Kwang-Bok Lee

Inventor： Sung-Jin Kim ,  Ye-Hoon Lee ,  Ho-Jin Kim ,  Kwang-Bok Lee

IPC: H04B7/02

CPC classification number: H04B7/0617 ,  H04B7/0417 ,  H04B7/0426 ,  H04B7/0443 ,  H04B7/0626 ,  H04B7/0691 ,  H04W52/42

Abstract: A beam and power allocation method for a MIMO system transmitting multiple data streams from a transmitter having a plurality of transmit antennas to a receiver having at least two receive antennas, the transmit antennas being grouped based on feedback information from the receiver, includes obtaining covariance matrices for respective transmit antenna group, and allocating beam and power to the transmit antenna groups according to the covariance matrices of the respective antenna groups. The power allocation method can be adapted to various partial beamforming techniques by generalizing the optimization problem as a function of transmit covariance matrices.

Abstract translation: 一种用于MIMO系统的波束和功率分配方法，所述MIMO系统从具有多个发射天线的发射机向具有至少两个接收天线的接收机发射多个数据流，所述发射天线基于来自所述接收机的反馈信息分组，包括获得协方差矩阵 并且根据各个天线组的协方差矩阵将波束和功率分配给发射天线组。 功率分配方法可以通过将优化问题概括为发射协方差矩阵的函数来适应各种部分波束成形技术。

公开(公告)号：US20060083195A1

公开(公告)日：2006-04-20

申请号：US11221223

申请日：2005-09-07

Applicant: Antonio Forenza ,  Robert Heath ,  Hyoung-Woon Park ,  Ho Yang ,  Ho-Jin Kim ,  Marios Kountouris ,  Pandharipande Ashish

Inventor： Antonio Forenza ,  Robert Heath ,  Hyoung-Woon Park ,  Ho Yang ,  Ho-Jin Kim ,  Marios Kountouris ,  Pandharipande Ashish

IPC: H04J9/00

CPC classification number: H04B7/0689 ,  H04J9/00 ,  H04L1/0001

Abstract: A multiple-input multiple-output (MIMO) wireless communication system. A transmitter that includes a plurality of transmit antennas selects one of a spatial multiplexing scheme and a spatial diversity scheme, processes a signal in the selected transmission scheme, and transmits the signal through the plurality of transmit antennas. A receiver that includes a plurality of receive antennas processes a signal in a reception scheme mapped to a transmission scheme of the transmitter. The transmission schemes include a transmission scheme for maximizing diversity gain and a transmission scheme for maximizing spectral efficiency. The MIMO communication system using an adaptive transmission mode switching technique performs switching between MIMO transmission modes using spatial selectivity of a channel, thereby obtaining maximum gain in a signal to noise ratio (SNR) and spectral efficiency according to channel state.

Abstract translation: 多输入多输出（MIMO）无线通信系统。 包括多个发射天线的发射机选择空间复用方案和空间分集方案之一，处理所选传输方案中的信号，并通过多个发射天线发射信号。 包括多个接收天线的接收机处理映射到发射机的传输方案的接收方案中的信号。 传输方案包括用于最大化分集增益的传输方案和用于使频谱效率最大化的传输方案。 使用自适应传输模式切换技术的MIMO通信系统使用信道的空间选择性进行MIMO传输模式之间的切换，从而根据信道状态获得信噪比（SNR）和频谱效率的最大增益。

公开(公告)号：US20060009189A1

公开(公告)日：2006-01-12

申请号：US10531638

申请日：2003-10-18

Applicant: Sung-Jin Kim ,  Jun Li ,  Ki-ho Kim ,  Ho-jin Kim

Inventor： Sung-Jin Kim ,  Jun Li ,  Ki-ho Kim ,  Ho-jin Kim

IPC: H04M11/00

CPC classification number: H04B7/0626 ,  H04B7/0634 ,  H04W72/1257

Abstract: The present invention discloses a mobile communication apparatus and method including a base station and a mobile station both having multi-antenna. As for the apparatus, including a base station and at least two mobile stations. The base station carries out the following functions: (a) restores weightied information and channel status information which have been decided by mobile stations from feedback signals received by mobile stations; (b) selects the downlink detect information which satisfies the largest transferring channel capacity from the above weighting information and channel status information which have been restored; (c) selects mobile stations to transmit at the same time from all mobile stations which are able to transmit using downlink detect information; and (d) processes data which will be transferred to select mobile stations with downlink detect information. The base station has at least one base station antenna, and the mobile station has at least one mobile station antenna.

Abstract translation: 本发明公开了一种包括具有多天线的基站和移动站的移动通信装置和方法。 对于包括基站和至少两个移动台的装置。 基站执行以下功能：（a）从移动台接收的反馈信号中恢复移动台决定的重量信息和信道状态信息; （b）从已经恢复的上述加权信息和信道状态信息中选择满足最大传送信道容量的下行链路检测信息; （c）选择移动台同时从能够使用下行链路检测信息发送的所有移动台进行发送; 以及（d）使用下行链路检测信息处理将被转移到选择移动站的数据。 基站具有至少一个基站天线，移动台具有至少一个移动台天线。

公开(公告)号：US20050128983A1

公开(公告)日：2005-06-16

申请号：US10988947

申请日：2004-11-15

Applicant: Eung-Sun Kim ,  Jong-Hyeuk Lee ,  Jae-Hak Chung ,  Ho-Jin Kim ,  Joo-Hwan Chun ,  Kyung-Chun Lee ,  Il-Han Kim

Inventor： Eung-Sun Kim ,  Jong-Hyeuk Lee ,  Jae-Hak Chung ,  Ho-Jin Kim ,  Joo-Hwan Chun ,  Kyung-Chun Lee ,  Il-Han Kim

IPC: H04B7/02 ,  H04B7/06 ,  H04B7/08 ,  H04Q7/00

CPC classification number: H04B7/0874 ,  H04B7/0691

Abstract: Disclosed is a method for configuring transmission antenna groups in a mobile communication system with multiple transmission antennas and multiple reception antennas. The method includes the steps of: receiving a first matrix having a size of ‘Nt×Nt’, which corresponds to Nt number of transmission antennas, fedback from the mobile terminal, generating combinations of sub-matrixes of the first matrix corresponding to Nr number of reception antennas, and calculating sums of maximum eigenvalues; determining combinations of the sub-matrixes having a maximum value from among the calculated sums of eigenvalues to be transmission antenna groups for the Nt number of transmission antennas; and transmitting different relevant symbols from each other through the transmission antenna groups.

Abstract translation: 公开了一种在具有多个发送天线和多个接收天线的移动通信系统中配置发送天线组的方法。 该方法包括以下步骤：接收一个大小为N N T N T N T N T N T N T N T N T N T N T N T N 发送天线，从移动终端反馈，生成与第N个接收天线数相对应的第一矩阵的子矩阵的组合，以及计算最大特征值的和; 确定具有最大值的子矩阵的组合，其中所计算的特征值之和成为发送天线的N T个数量的发送天线组; 并通过发射天线组彼此发送不同的相关符号。