利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

31 条记录 (耗时 0.023 秒)

    Frequency hopping method in orthogonal frequency division multiplexing system
    1.
    发明申请
    Frequency hopping method in orthogonal frequency division multiplexing system 有权
    正交频分复用系统中的跳频方法

    公开(公告)号：US20060203707A1

    公开(公告)日：2006-09-14

    申请号：US10540740

    申请日：2003-11-21

    申请人： Heesoo Lee ,  Kyung-Hi Chang

    发明人： Heesoo Lee ,  Kyung-Hi Chang

    IPC分类号： H04B1/00 ,  H04J11/00

    CPC分类号： H04L5/023 ,  H04B1/7143 ,  H04B2001/7154 ,  H04J11/005 ,  H04L27/2601

    摘要： Disclosed is a frequency hopping method in an OFDM system, comprising: (a) detecting a mutual interference degree between different cells, and determining whether to use different frequency hopping patterns between the cells for interference averaging according to the mutual interference degree interference degree; (b) determining a number P of the different frequency hopping patterns needed between all the cells in the system; (c) generating the frequency hopping patterns of more than the number P and allocating the generated frequency hopping patterns to each cell, the frequency hopping patterns having the same frequency collision times between two channels in the different frequency hopping patterns; and (d) frequency-hopping the channels in each cell according to the allocated frequency hopping pattern.

    摘要翻译： 公开了一种OFDM系统中的跳频方法，包括：（a）检测不同小区之间的相互干扰度，并根据所述干扰度干扰度确定是否在所述小区之间使用不同的跳频图案进行干扰平均; （b）确定系统中所有单元之间所需的不同跳频图案的数量P; （c）产生多于数目P的跳频模式，并将生成的跳频模式分配给每个小区，跳频模式在不同跳频模式中的两个信道之间具有相同的频率冲突时间; 和（d）根据分配的跳频图案对每个小区中的信道进行跳频。

    Frequency hopping method in orthogonal frequency division multiplexing system
    2.
    发明授权
    Frequency hopping method in orthogonal frequency division multiplexing system 有权
    正交频分复用系统中的跳频方法

    公开(公告)号：US07436802B2

    公开(公告)日：2008-10-14

    申请号：US10540740

    申请日：2003-11-21

    申请人： Heesoo Lee ,  Kyung-Hi Chang

    发明人： Heesoo Lee ,  Kyung-Hi Chang

    IPC分类号： G01R31/08

    CPC分类号： H04L5/023 ,  H04B1/7143 ,  H04B2001/7154 ,  H04J11/005 ,  H04L27/2601

    摘要： Disclosed is a frequency hopping method in an OFDM system, comprising: (a) detecting a mutual interference degree between different cells, and determining whether to use different frequency hopping patterns between the cells for interference averaging according to the mutual interference degree interference degree; (b) determining a number P of the different frequency hopping patterns needed between all the cells in the system; (c) generating the frequency hopping patterns of more than the number P and allocating the generated frequency hopping patterns to each cell, the frequency hopping patterns having the same frequency collision times between two channels in the different frequency hopping patterns; and (d) frequency-hopping the channels in each cell according to the allocated frequency hopping pattern.

    摘要翻译： 公开了一种OFDM系统中的跳频方法，包括：（a）检测不同小区之间的相互干扰度，并根据所述干扰度干扰度确定是否在所述小区之间使用不同的跳频图案进行干扰平均; （b）确定系统中所有单元之间所需的不同跳频图案的数量P; （c）产生多于数目P的跳频模式，并将生成的跳频模式分配给每个小区，跳频模式在不同跳频模式中的两个信道之间具有相同的频率冲突时间; 和（d）根据分配的跳频图案对每个小区中的信道进行跳频。

    Transmitter/receiver for controlling multiuser multiple input multiple output system and method thereof
    3.
    发明授权
    Transmitter/receiver for controlling multiuser multiple input multiple output system and method thereof 有权
    用于控制多用户多输入多输出系统的发射机/接收机及其方法

    公开(公告)号：US08416876B2

    公开(公告)日：2013-04-09

    申请号：US12664598

    申请日：2008-06-13

    申请人： Heesoo Lee ,  Hyun-Kyu Chung

    发明人： Heesoo Lee ,  Hyun-Kyu Chung

    IPC分类号： H04B7/02

    CPC分类号： H04B7/0452 ,  H04B7/0632 ,  H04B7/0647 ,  H04J11/004

    摘要： Provided are a method of controlling a multi-user multiple input multiple output (MIMO) system and a transmitter/receiver used in the method. In the method, it can be determined whether feedback information is fed back according to the feedback information type rather than being indiscriminately provided to a transmitter, and then only a necessary feedback information type is transmitted, thereby increasing system capacity while reducing feedback load.

    摘要翻译： 提供了一种控制多用户多输入多输出（MIMO）系统和在该方法中使用的发射机/接收机的方法。 在该方法中，可以根据反馈信息类型确定反馈信息是否反馈，而不是不加选择地提供给发送器，然后仅传送必要的反馈信息类型，从而在减少反馈负载的同时增加系统容量。

    DATA TRANSMISSION AND RECEPTION METHOD IN COOPERATIVE COMMUNICATION SYSTEM
    5.
    发明申请
    DATA TRANSMISSION AND RECEPTION METHOD IN COOPERATIVE COMMUNICATION SYSTEM 审中-公开
    合作通信系统中的数据传输和接收方法

    公开(公告)号：US20110212684A1

    公开(公告)日：2011-09-01

    申请号：US13126989

    申请日：2009-10-30

    申请人： Junyoung Nam ,  Heesoo Lee ,  Young-Jo Ko ,  Jae-Young Ahn

    发明人： Junyoung Nam ,  Heesoo Lee ,  Young-Jo Ko ,  Jae-Young Ahn

    IPC分类号： H04B7/14

    CPC分类号： H04B7/022 ,  H04B7/026 ,  H04B7/15592

    摘要： A data transmission and reception method in a cooperative communication system is provided. The data transmission method of a base station in a cooperative communication system includes: generating a first code word for cooperative transmission and a second code word for direct transmission to a mobile station; and transmitting a signal including one or more of the first and second code words to a relay equipment for cooperative transmission and the mobile station. The first and second words are independent from each other.

    摘要翻译： 提供了一种协作通信系统中的数据发送和接收方法。 协作通信系统中的基站的数据发送方法包括：生成用于协作发送的第一码字和用于直接发送到移动台的第二码字; 以及将包括所述第一和第二代码字中的一个或多个的信号发送到用于协作传输的中继设备和所述移动站。 第一个和第二个词彼此独立。

    APPARATUS AND METHOD OF TRANSMITTING/RECEIVING SIGNALS USING SIGNALING POINT ROTATION AT MUTUAL COOPERATION TRANSMISSION
    6.
    发明申请
    APPARATUS AND METHOD OF TRANSMITTING/RECEIVING SIGNALS USING SIGNALING POINT ROTATION AT MUTUAL COOPERATION TRANSMISSION 失效
    在相互合作传输中使用信号点旋转的发送/接收信号的装置和方法

    公开(公告)号：US20100316165A1

    公开(公告)日：2010-12-16

    申请号：US12517949

    申请日：2007-12-06

    申请人： Hyojin Lee ,  Hyun-Kyu Chung ,  Hyun-Seok Ryu ,  Chung-Gu Kang ,  Heesoo Lee ,  Kyung-Mi Park

    发明人： Hyojin Lee ,  Hyun-Kyu Chung ,  Hyun-Seok Ryu ,  Chung-Gu Kang ,  Heesoo Lee ,  Kyung-Mi Park

    IPC分类号： H04L27/20

    CPC分类号： H04L27/34 ,  H04B7/02 ,  H04B7/026 ,  H04B7/15592 ,  H04L27/36 ,  H04L27/38

    摘要： An apparatus for and method of transmitting and/or receiving a signal by using signaling point rotation in mutually cooperative relaying are provided. The apparatus for transmitting a signal includes: a rotated I-channel generation unit rotating a symbol containing data of a first user, by a predetermined angle, and then, obtaining the I-channel (in-phase) component of the rotated symbol; a rotated Q-channel generation unit receiving a symbol rotated by a predetermined angle, of a previous time slot from a node of a second user performing mutually cooperative relaying with the node of the first user, detecting the I-channel component, and obtaining the Q-channel (quadrature-phase) component of a symbol containing data of the second user from the detected I-channel component; and a combining unit combining the I-channel component of the first user generated in the rotated I-channel generation unit and the Q-channel component of the second user generated in the rotated Q-channel generation unit, thereby generating one symbol.

    摘要翻译： 提供了一种通过在相互协作的中继中使用信令点旋转来发送和/或接收信号的装置和方法。 用于发送信号的装置包括：旋转的I信道生成单元，使包含第一用户的数据的符号旋转预定角度，然后获得旋转符号的I信道（同相）分量; 旋转的Q信道生成单元接收从与第一用户的节点进行相互协作中继的第二用户的节点的先前时隙旋转预定角度的符号，检测I信道分量，并获得 从检测到的I信道分量的包含第二用户的数据的符号的Q信道（正交相位）分量; 以及组合单元，组合在旋转的I信道生成单元中生成的第一用户的I信道分量和在旋转的Q信道生成单元中生成的第二用户的Q信道分量，从而生成一个符号。

    METHOD AND APPARATUS FOR DETERMINING REPORTING PERIOD OF CHANNEL QUALITY INFORMATION IN MULTI-CARRIER WIRELESS SYSTEM
    7.
    发明申请
    METHOD AND APPARATUS FOR DETERMINING REPORTING PERIOD OF CHANNEL QUALITY INFORMATION IN MULTI-CARRIER WIRELESS SYSTEM 有权
    用于确定多载波无线系统中信道质量信息报告期的方法和装置

    公开(公告)号：US20100061258A1

    公开(公告)日：2010-03-11

    申请号：US12513249

    申请日：2007-10-31

    申请人： Bangwon Seo ,  Heesoo Lee ,  Hyun-Kyu Chung ,  Dongwoo Kim ,  In-Ho Lee

    发明人： Bangwon Seo ,  Heesoo Lee ,  Hyun-Kyu Chung ,  Dongwoo Kim ,  In-Ho Lee

    IPC分类号： H04J1/16

    CPC分类号： H04B7/0632 ,  H04B7/0647 ,  H04L1/0026 ,  H04L1/0027

    摘要： Provided are a method and an apparatus for determining a reporting period of channel quality indicator. The method includes the steps of: a) estimating a channel gain through a channel received from a base station; b) calculating a weight by using a variable for determining a fairness value and the estimated channel gain, and estimating weight channel quality to the estimated channel gain by using the calculated weight; c) comparing the estimated weight channel quality and a threshold value; and d) feeding back estimated channel quality indicator by using wireless resources assigned for the channel quality indicator feedback only in case that the weight channel quality is higher than the threshold value.

    摘要翻译： 提供了一种用于确定信道质量指示符的报告周期的方法和装置。 该方法包括以下步骤：a）通过从基站接收的信道估计信道增益; b）通过使用用于确定公平值和估计的信道增益的变量来计算权重，并且通过使用所计算的权重来估计权值信道质量与估计的信道增益; c）比较所估计的权重信道质量和阈值; 以及d）仅在权重信道质量高于阈值的情况下，通过使用为信道质量指示符反馈分配的无线资源来反馈估计信道质量指示符。