中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

508 records (took 0.057 seconds)

    Method of transmitting and receiving a midamble for channel estimation of multiple antennas
    51.
    发明授权
    Method of transmitting and receiving a midamble for channel estimation of multiple antennas 有权
    发送和接收用于多个天线的信道估计的中置码的方法

    公开(公告)号：US08428172B2

    公开(公告)日：2013-04-23

    申请号：US12936394

    申请日：2009-04-03

    Applicant: Jin Young Chun ,  Hyun Soo Ko ,  Moon Il Lee ,  Bin Chul Ihm ,  Wook Bong Lee

    Inventor： Jin Young Chun ,  Hyun Soo Ko ,  Moon Il Lee ,  Bin Chul Ihm ,  Wook Bong Lee

    IPC: H04B7/02 ,  H04L1/02

    CPC classification number: H04L5/0092 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/14

    Abstract: A method of transmitting a midamble for channel estimation of multiple antennas performed by a base station in a system having segregated uplink and downlink frequency bands is provided. The method includes transmitting midamble information indicating presence of the midamble within a downlink frame to a user equipment (UE), and transmitting the midamble on a single downlink subframe among at least one downlink subframe included in the downlink frame or on a common zone to the UE by using the multiple antennas. A scheduling overhead of a base station and other overheads can be reduced by decreasing the number of transmissions of a midamble on one downlink frame, and thus limited radio resources can be effectively used.

    Abstract translation: 提供了一种发送用于在具有分离的上行链路和下行链路频带的系统中由基站执行的多个天线的信道估计的中置码的方法。 该方法包括向用户设备（UE）发送指示下行链路帧内的中间码的存在的中间码信息，以及在下行链路帧中包含的至少一个下行链路子帧或公共区域中的单个下行链路子帧上发送中间码， UE通过使用多个天线。 可以通过减少一个下行链路帧上的中继码的发送次数来减少基站的调度开销和其他开销，从而可以有效地使用有限的无线资源。

    Method for performing CoMP operation and transmitting feedback information in a wireless communication system
    53.
    发明授权
    Method for performing CoMP operation and transmitting feedback information in a wireless communication system 有权
    用于执行CoMP操作并在无线通信系统中发送反馈信息的方法

    公开(公告)号：US08401480B2

    公开(公告)日：2013-03-19

    申请号：US12717623

    申请日：2010-03-04

    Applicant: Ja Ho Koo ,  Jian Xu ,  Bin Chul Ihm ,  Jae Hoon Chung ,  Hyun Soo Ko ,  Moon Il Lee

    Inventor： Ja Ho Koo ,  Jian Xu ,  Bin Chul Ihm ,  Jae Hoon Chung ,  Hyun Soo Ko ,  Moon Il Lee

    IPC: H04B1/00

    CPC classification number: H04B7/024 ,  H04B7/0623 ,  H04B7/0639

    Abstract: A method for performing a Coordinated Multi-Point (CoMP) operation and transmitting feedback information in a wireless communication system is disclosed. The method includes measuring interference levels or noise and interference variances of reference signals received from one or more neighbor cells, and transmitting to a serving Base Station (BS) information about the measured interference levels or noise and interference variances, and information about a Precoding Matrix Index (PMI) that a mobile station (MS) wants to restrict or recommend for a neighbor cell performing the CoMP operation.

    Abstract translation: 公开了一种在无线通信系统中执行协调多点（CoMP）操作和发送反馈信息的方法。 该方法包括测量从一个或多个相邻小区接收的参考信号的干扰电平或噪声和干扰方差，以及向服务基站（BS）发送关于所测量的干扰电平或噪声和干扰方差的信息，以及关于预编码矩阵 移动台（MS）希望限制或推荐执行CoMP操作的相邻小区的索引（PMI）。

    Method for detecting signals based on despreading and method for transmitting signals for the same
    54.
    发明授权
    Method for detecting signals based on despreading and method for transmitting signals for the same 有权
    基于解扩信号检测信号的方法及其发送信号的方法

    公开(公告)号：US08401052B2

    公开(公告)日：2013-03-19

    申请号：US12526492

    申请日：2008-02-11

    Applicant: Hyun Soo Ko ,  Bin Chul Ihm ,  Jin Young Chun ,  Wook Bong Lee ,  Moon Il Lee ,  Jae Wan Kim

    Inventor： Hyun Soo Ko ,  Bin Chul Ihm ,  Jin Young Chun ,  Wook Bong Lee ,  Moon Il Lee ,  Jae Wan Kim

    IPC: H04B1/00

    CPC classification number: H04L27/2614 ,  H04L2025/03375

    Abstract: A method for detecting signals based on despreading and a signal transmitting method for the same are provided. Signals are spread according to the size of at least one spreading band, which is determined in consideration of a correlation degree of a frequency band in a communication system. A reception side which receives the signals detects the signals after de-spreading with respect to signals which are spread in a frequency band having a correlation degree equal to or greater than a predetermined level as a spreading band, among the reception signals. Thus, the dimension of the detected signals can be decreased.

    Abstract translation: 提供了一种基于解扩信号检测信号的方法及其信号发送方法。 信号根据通信系统中的频带的相关度确定的至少一个扩展频带的大小进行扩展。 接收信号的接收侧在接收信号中检测相对于在具有等于或大于预定电平的相关度的频带中扩展的信号进行解扩后的信号作为扩展频带。 因此，可以减小检测信号的尺寸。

    METHOD AND DEVICE FOR EFFICIENT FEEDBACK IN WIRELESS COMMUNICATION SYSTEM SUPPORTING MULTIPLE ANTENNAS
    57.
    发明申请
    METHOD AND DEVICE FOR EFFICIENT FEEDBACK IN WIRELESS COMMUNICATION SYSTEM SUPPORTING MULTIPLE ANTENNAS 有权
    支持多个天线的无线通信系统中有效反馈的方法和装置

    公开(公告)号：US20130028225A1

    公开(公告)日：2013-01-31

    申请号：US13640864

    申请日：2011-04-12

    Applicant: Hyun Soo Ko ,  Jae Hoon Chung ,  Moon Il Lee

    Inventor： Hyun Soo Ko ,  Jae Hoon Chung ,  Moon Il Lee

    IPC: H04W72/04

    CPC classification number: H04L5/0057 ,  H04B7/0486 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0639 ,  H04B7/065 ,  H04L5/001 ,  H04W88/02 ,  H04W88/08

    Abstract: The present invention relates to a method for transmitting channel status information comprising: transmitting a rank indicator (RI) and a precoding type indicator (PTI) based on a first reporting period, transmitting during the first reporting period a broadband first precoding matrix indicator (PMI) based on a second reporting period, and transmitting at least once during the second reporting period a broadband second PMI and a broadband CQI, when the PTI has a first value; transmitting the RI and the PTI based on the first reporting period, transmitting during the first reporting period the broadband second PMI and the broadband CQI based on a third reporting period; and transmitting at least once during the third period a subband second PMI and a subband CQI, when the PTI has a second value; wherein the subband CQI on an entire cycle of a set bandwidth portion can be transmitted at least once.

    Abstract translation: 本发明涉及一种用于发送信道状态信息的方法，包括：基于第一报告周期发送秩指示符（RI）和预编码类型指示符（PTI），在第一报告周期期间发送宽带第一预编码矩阵指示符（PMI ），并且当所述PTI具有第一值时，在所述第二报告周期期间至少发送一次宽带第二PMI和宽带CQI; 基于第一报告周期发送RI和PTI，在第一报告周期期间，基于第三报告周期在宽带第二PMI和宽带CQI中进行发送; 以及当所述PTI具有第二值时，在所述第三时段期间至少发送一次子带第二PMI和子带CQI; 其中，设定带宽部分的整个周期上的子带CQI可以至少发送一次。

    Repetitive transmissions in multi-carrier based wireless access techniques
    59.
    发明授权
    Repetitive transmissions in multi-carrier based wireless access techniques 有权
    基于多载波的无线接入技术中的重复传输

    公开(公告)号：US08359510B2

    公开(公告)日：2013-01-22

    申请号：US13401831

    申请日：2012-02-21

    Applicant: Moon-Il Lee ,  Jin-Young Chun ,  Jae-Won Chang ,  Jin-Hyuk Jung

    Inventor： Moon-Il Lee ,  Jin-Young Chun ,  Jae-Won Chang ,  Jin-Hyuk Jung

    IPC: H04L1/18 ,  H04L1/02 ,  H04B7/02

    CPC classification number: H04B7/0671 ,  H04B7/12 ,  H04L1/0006 ,  H04L1/0625 ,  H04L1/08 ,  H04L1/1816 ,  H04L1/1819 ,  H04L27/2602 ,  H04L27/2607 ,  H04L27/2626 ,  H04L27/2634

    Abstract: According to one embodiment, a method for repetitive transmission using a plurality of sub-carriers includes: preparing a symbol to be transmitted using the plurality of sub-carriers within a single time domain unit; repeating the symbol a predetermined number (N) of times; applying a corresponding one of N different cyclic shift values to each of the N repeated symbols to be transmitted using the plurality of sub-carriers within the single time domain unit; performing an IFFT (Inverse Fast Fourier Transform) on each of the N repeated symbols to which the corresponding one of the N different cyclic shift values is applied; and transmitting the N repeated symbols on which the IFFT is performed using the plurality of sub-carriers.

    Abstract translation: 根据一个实施例，使用多个子载波的重复传输方法包括：在单个时域单元内准备要使用多个子载波进行传输的符号; 重复该符号预定次数（N）次; 对所述N个重复符号中的每一个应用N个不同循环移位值中的相应一个，使用所述单个时域单元内的所述多个子载波进行发送; 对应用N个不同循环移位值中的相应一个的N个重复符号中的每一个执行IFFT（快速傅里叶逆变换） 以及使用所述多个子载波来发送在其上执行所述IFFT的所述N个重复符号。

Patent Agency Ranking