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    Mobile communication apparatus and method including base station and mobile station having muti-antenna
    21.
    发明申请
    Mobile communication apparatus and method including base station and mobile station having muti-antenna 有权
    包括具有多天线的基站和移动站的移动通信装置和方法

    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。

    Beam and power allocation method for MIMO communication system
    22.
    发明申请
    Beam and power allocation method for MIMO communication system 审中-公开
    MIMO通信系统的波束和功率分配方法

    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。

    Mobile communication apparatus and method including base station and mobile station having multi-antenna
    23.
    发明申请
    Mobile communication apparatus and method including base station and mobile station having multi-antenna 有权
    包括具有多天线的基站和移动站的移动通信装置和方法

    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。

    Method for transmitting data in a communication system
    25.
    发明授权
    Method for transmitting data in a communication system 有权
    在通信系统中发送数据的方法

    公开(公告)号：US07986972B2

    公开(公告)日：2011-07-26

    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。

    Beam and power allocation method for MIMO communication system
    26.
    发明授权
    Beam and power allocation method for MIMO communication system 有权
    MIMO通信系统的波束和功率分配方法

    公开(公告)号：US07587172B2

    公开(公告)日：2009-09-08

    申请号：US11368726

    申请日：2006-03-06

    Applicant: Ho-Jin Kim ,  Sung-Jin Kim ,  Kwang-Bok Lee ,  Jianjun Li

    Inventor： Ho-Jin Kim ,  Sung-Jin Kim ,  Kwang-Bok Lee ,  Jianjun Li

    IPC: H04B1/00 ,  H04B15/00

    CPC classification number: H04B7/0452 ,  H04B7/0465 ,  H04B7/061 ,  H04B7/0634 ,  H04B7/0639 ,  H04L1/0003 ,  H04L1/0675

    Abstract: The present invention provides the multiuser Multiple-Input Multiple-Output (MIMO) systems with a feedback method which includes measuring, at the terminal, received Signal to Noise Ratios (SNRs) for all transmit antennas, selecting one of precoding matrixes, which has best SNRs, retrieving an index mapped to the selected preceding matrix from a predetermined mapping table, and transmitting the index with the SNRs of the selected precoding matrix. In the present invention, it is possible to reduce feedback information amount without degradation of the sum rate performance of the system since the feedback information is transmitted in a form of index implying appropriate precoding matrix and corresponding SNRs.

    Abstract translation: 本发明提供了具有反馈方法的多用户多输入多输出（MIMO）系统，其包括在终端处测量所有发射天线的接收信噪比（SNR），选择最佳的预编码矩阵之一 SNR，从预定的映射表检索映射到所选择的先前矩阵的索引，以及使用所选择的预编码矩阵的SNR发送索引。 在本发明中，由于反馈信息以表示适当的预编码矩阵和对应的SNR的索引形式发送，所以可以减少反馈信息量而不降低系统的总和速率性能。

    Apparatus and method for selecting effective channel in a multi-user MIMO system
    27.
    发明申请
    Apparatus and method for selecting effective channel in a multi-user MIMO system 有权
    在多用户MIMO系统中选择有效信道的装置和方法

    公开(公告)号：US20070253508A1

    公开(公告)日：2007-11-01

    申请号：US11785743

    申请日：2007-04-19

    Applicant: Yong-Xing Zhou ,  Sung-Jin Kim ,  JianJun Li ,  Ho-Jin Kim

    Inventor： Yong-Xing Zhou ,  Sung-Jin Kim ,  JianJun Li ,  Ho-Jin Kim

    IPC: H04L1/02

    CPC classification number: H04B7/0626 ,  H04L1/0026

    Abstract: An apparatus and method for selecting an effective channel in a multi-user MIMO system are provided, in which a receiver receives pilot signals from a transmitter, determines channel information indicating an antenna offering the best quality among a plurality of antennas using the pilot signals, and generates feedback information with the channel information, and the transmitter receives feedback information from a plurality of receivers, generates a channel matrix using the feedback information, and transmits data simultaneously to the plurality of receivers using the channel matrix.

    Abstract translation: 提供了一种用于在多用户MIMO系统中选择有效信道的装置和方法，其中接收机从发射机接收导频信号，使用导频信号确定指示在多个天线中提供最佳质量的天线的信道信息， 并且生成具有信道信息的反馈信息，并且发送器从多个接收器接收反馈信息，使用反馈信息生成信道矩阵，并且使用信道矩阵同时向多个接收机发送数据。

    Apparatus and method for beamforming in a multi-antenna system
    29.
    发明申请
    Apparatus and method for beamforming in a multi-antenna system 有权
    多天线系统中波束成形的装置和方法

    公开(公告)号：US20060039494A1

    公开(公告)日：2006-02-23

    申请号：US11180264

    申请日：2005-07-13

    Applicant: Ho-Jin Kim ,  Ju-Ho Lee ,  Kwang-Bok Lee ,  Hyoung-Woon Park ,  Ho Yang ,  Pandharipande Ashish ,  Sung-Jin Kim

    Inventor： Ho-Jin Kim ,  Ju-Ho Lee ,  Kwang-Bok Lee ,  Hyoung-Woon Park ,  Ho Yang ,  Pandharipande Ashish ,  Sung-Jin Kim

    IPC: H04L1/02

    CPC classification number: H04B7/0617 ,  H04B7/061 ,  H04B7/0691 ,  H04L1/0003 ,  H04L1/0009 ,  H04W52/262

    Abstract: An apparatus and method for performing beamforming for transmitting a plurality of bit streams output through Adaptive Modulation and Coding (AMC) via a plurality of transmission antennas in a base station using a multi-antenna scheme. The apparatus and method include classifying the plurality of transmission antennas into a plurality of transmission antenna groups; selecting one of the transmission antenna groups depending on a group selection signal being fed back from a mobile station; and outputting each of the bit streams to its associated transmission antenna among the transmission antennas constituting the selected transmission antenna group.

    Abstract translation: 一种用于执行波束成形的装置和方法，用于通过使用多天线方案的基站中的多个发送天线发送通过自适应调制和编码（AMC）输出的多个比特流。 该装置和方法包括将多个发射天线分类成多个发射天线组; 根据从移动台反馈的组选择信号选择发送天线组中的一个; 并且在构成所选择的发送天线组的发送天线之间将每个比特流输出到其相关的发送天线。

    Time difference adders, time difference accumulators, sigma-delta time-to-digital converters, digital phase locked loops and temperature sensors
    30.
    发明授权
    Time difference adders, time difference accumulators, sigma-delta time-to-digital converters, digital phase locked loops and temperature sensors 有权
    时差加法器，时差累加器，Σ-Δ时间数字转换器，数字锁相环和温度传感器

    公开(公告)号：US09450594B2

    公开(公告)日：2016-09-20

    申请号：US14072002

    申请日：2013-11-05

    Applicant: Sung-Jin Kim ,  Ji-Hyun Kim

    Inventor： Sung-Jin Kim ,  Ji-Hyun Kim

    IPC: H03L7/06 ,  H03M1/06 ,  G04F10/00

    CPC classification number: H03M1/06 ,  G04F10/005

    Abstract: A time difference adder included in a system-on-chip (SOC) includes a first register unit and a second register unit. The first register unit is configured to receive first and second input signals having a first time difference, and generate a first output signal in response to a first signal. The second register unit is configured to receive third and fourth input signals having a second time difference, and generate a second output signal having a third time difference with respect to the first output signal in response to the first signal. The third time difference corresponds to a sum of the first time difference and the second time difference.

    Abstract translation: 包括在片上系统（SOC）中的时差加法器包括第一寄存器单元和第二寄存器单元。 第一寄存器单元被配置为接收具有第一时间差的第一和第二输入信号，并响应于第一信号产生第一输出信号。 第二寄存器单元被配置为接收具有第二时间差的第三和第四输入信号，并且响应于第一信号产生相对于第一输出信号具有第三时间差的第二输出信号。 第三时间差对应于第一时间差和第二时间差的和。

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