利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

24 条记录 (耗时 0.012 秒)

    APPARATUS AND METHOD FOR SOFT DEMAPPING
    3.
    发明申请
    APPARATUS AND METHOD FOR SOFT DEMAPPING 有权
    用于软化解的装置和方法

    公开(公告)号：US20120307942A1

    公开(公告)日：2012-12-06

    申请号：US13483113

    申请日：2012-05-30

    申请人： Ki Taek Bae ,  Kyeong Yeon Kim ,  Ho Yang

    发明人： Ki Taek Bae ,  Kyeong Yeon Kim ,  Ho Yang

    IPC分类号： H04L27/38

    CPC分类号： H04L27/38 ,  H04L25/067

    摘要： Provided is a soft demapping apparatus that may detect a log likelihood ratio (LLR) value of a quadrature amplitude modulation (QAM) signal, using a shifted table scheme, may designate a sub-region of the QAM signal corresponding to bit information that is obtained by decoding the LLR value, and may calculate an LLR value of other bit information included in the designated sub-region.

    摘要翻译： 提供了可以使用移位表格方式来检测正交幅度调制（QAM）信号的对数似然比（LLR）值的软解映射装置，可以指定与获得的比特信息相对应的QAM信号的子区域 通过解码LLR值，并且可以计算包括在指定子区域中的其他位信息的LLR值。

    MIMO communication system using an adaptive transmission mode switching technique
    4.
    发明授权
    MIMO communication system using an adaptive transmission mode switching technique 有权
    MIMO通信系统采用自适应传输模式切换技术

    公开(公告)号：US07778147B2

    公开(公告)日：2010-08-17

    申请号：US11221223

    申请日：2005-09-07

    申请人： Antonio Forenza ,  Robert W. Heath ,  Hyoung-Woon Park ,  Ho Yang ,  Ho-Jin Kim ,  Marios Kountouris ,  Pandharipande Ashish

    发明人： Antonio Forenza ,  Robert W. Heath ,  Hyoung-Woon Park ,  Ho Yang ,  Ho-Jin Kim ,  Marios Kountouris ,  Pandharipande Ashish

    IPC分类号： H04J9/00

    CPC分类号： H04B7/0689 ,  H04J9/00 ,  H04L1/0001

    摘要： 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.

    摘要翻译： 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。

    Method and apparatus for transmitting/receiving signals in multiple input multiple output wireless communication system employing beam forming scheme
    5.
    发明授权
    Method and apparatus for transmitting/receiving signals in multiple input multiple output wireless communication system employing beam forming scheme 有权
    在采用波束成形方案的多输入多输出无线通信系统中发送/接收信号的方法和装置

    公开(公告)号：US07711330B2

    公开(公告)日：2010-05-04

    申请号：US11260852

    申请日：2005-10-27

    申请人： Ho Yang ,  Hyoung-Woon Park ,  Ho-Jin Kim ,  Ashish Pandharipande

    发明人： Ho Yang ,  Hyoung-Woon Park ,  Ho-Jin Kim ,  Ashish Pandharipande

    IPC分类号： H03C7/02

    CPC分类号： H04L1/0643 ,  H04B7/043 ,  H04L1/0625

    摘要： Disclosed is a method and an apparatus for transmitting/receiving signals in an multiple input multiple output (MIMO) wireless communication system. The method and apparatus including beam forming of a reference signal while predetermined codes are mapped on a one-to-one basis to each of a plurality of beams available for the transmitter and thereafter transmitting the beam-formed reference signal to a receiver. Also, if information representing an optimum beam, which maximizes reception performance, is received from the receiver, beam forming of data signals is performed by means of a beam corresponding to the information on the optimum beam and the beam-formed data signals are transmitted to the receiver. Therefore, it is possible to apply a beam forming scheme having minimum operation complexity and maximizing reception performance.

    摘要翻译： 公开了一种在多输入多输出（MIMO）无线通信系统中发送/接收信号的方法和装置。 该方法和装置包括参考信号的波束形成，同时将预定的代码以一对一的方式映射到可用于发射机的多个波束中的每一个，然后将波束形成的参考信号发送到接收机。 此外，如果从接收器接收到表示最大化接收性能的最佳波束的信息，则通过与最佳波束上的信息对应的波束执行数据信号的波束形成，并将波束形成的数据信号发送到 收件人。 因此，可以应用具有最小操作复杂度并且最大化接收性能的波束形成方案。

    Adaptive bit/power loading technique for a multicarrier communication system
    6.
    发明授权
    Adaptive bit/power loading technique for a multicarrier communication system 有权
    多载波通信系统的自适应比特/功率加载技术

    公开(公告)号：US07680198B2

    公开(公告)日：2010-03-16

    申请号：US11089220

    申请日：2005-03-24

    申请人： Pandharipande Ashish ,  Ho Yang ,  Hyoung-Woon Park ,  Ho-Jin Kim ,  Young-Ho Jung

    发明人： Pandharipande Ashish ,  Ho Yang ,  Hyoung-Woon Park ,  Ho-Jin Kim ,  Young-Ho Jung

    IPC分类号： H04K1/10 ,  H04B7/02 ,  H04L27/00 ,  H03D1/06 ,  H04L7/00

    CPC分类号： H04L27/2608 ,  H04L27/0008

    摘要： A bit/power loading method in an adaptive modulation-based multicarrier communication system computes ratios of modulation mode values to transmission power values sub-channel-by-sub-channel, selects a combination of sub-channels in which a sum of the ratios is maximized for a total number of bits to be simultaneously transmitted, and transmits signals in modulation modes corresponding to ratios of modulation mode values to transmission power values associated with the selected sub-channels. Because the bit/power loading method selects a combination of sub-channel modulation modes with the minimum total transmission power for a given number of bits on the basis of transmission power in each sub-channel modulation mode, the bits can be transmitted at the minimum transmission power in a given environment.

    摘要翻译： 基于自适应调制的多载波通信系统中的比特/功率加载方法计算调制模式值与发射功率值与子信道子信道的比率，选择其中比率之和为的子信道的组合 对于要同时发送的总比特数最大化，并且将与调制模式值的比率相对应的调制模式的信号发送到与所选择的子信道相关联的发送功率值。 因为比特/功率加载方法基于每个子信道调制模式中的发送功率来选择给​​定比特数的最小总发送功率的子信道调制模式的组合，所以可以最少地发送比特 传输功率在给定的环境中。

    Mobile terminal and method of transmitting and receiving signal thereof
    7.
    发明申请
    Mobile terminal and method of transmitting and receiving signal thereof 有权
    移动终端及其发送和接收信号的方法

    公开(公告)号：US20090124300A1

    公开(公告)日：2009-05-14

    申请号：US12081884

    申请日：2008-04-23

    申请人： Min-kyoung Park ,  Ho Yang

    发明人： Min-kyoung Park ,  Ho Yang

    IPC分类号： H04B7/08 ,  H04B1/38

    CPC分类号： H04B7/0413 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0016 ,  H04L1/0017 ,  H04L1/0026 ,  Y02D70/444

    摘要： Provided are a mobile terminal and a method of transmitting and receiving signals in the mobile terminal. The method selects a modulation method and an antenna mode for optimizing energy consumption when signals are transmitted and received in consideration of a network operation mode, a channel environment, Quality of Service (QoS), and the like, and transmits and receives signals using the modulation method and antenna mode.

    摘要翻译： 提供了一种在移动终端中发送和接收信号的移动终端和方法。 考虑到网络操作模式，信道环境，服务质量（QoS）等等来发送和接收信号时，该方法选择用于优化能量消耗的调制方法和天线模式，并且使用 调制方式和天线方式。

    Communication method for multi-mode wireless terminal
    8.
    发明申请
    Communication method for multi-mode wireless terminal 有权
    多模无线终端的通信方法

    公开(公告)号：US20070189317A1

    公开(公告)日：2007-08-16

    申请号：US11503288

    申请日：2006-08-11

    申请人： Ho Yang

    发明人： Ho Yang

    IPC分类号： H04L12/28 ,  H04L12/66

    CPC分类号： H04L12/6402 ,  H04W88/06

    摘要： Provided is a receiving method for a terminal supporting at least two communication modes and at least one receiving algorithms. The receiving method includes the terminal recognizing at least one current communication mode and a channel status, selecting a receiving algorithm for each active communication mode according to the channel status by referring to a previously designed algorithm lookup table, and receiving a signal of each active communication mode using the selected receiving algorithm. In the receiving method, by activating a combination of optimal receiving algorithms with computational complexity allowed by a system according to at least one active communication mode of a terminal and a channel status, multiple services can be efficiently provided.

    摘要翻译： 提供一种用于支持至少两种通信模式的终端和至少一种接收算法的接收方法。 接收方法包括终端识别至少一个当前通信模式和信道状态，通过参考先前设计的算法查找表，根据信道状态为每个主动通信模式选择接收算法，并且接收每个主动通信的信号 模式使用所选择的接收算法。 在接收方法中，通过根据终端的至少一个主动通信模式和信道状态激活系统允许的计算复杂度的最佳接收算法的组合，可以有效地提供多个服务。

    Adaptive bit/power loading technique for a multicarrier communication system
    9.
    发明申请
    Adaptive bit/power loading technique for a multicarrier communication system 有权
    用于多载波通信系统的自适应比特/功率加载技术

    公开(公告)号：US20060056527A1

    公开(公告)日：2006-03-16

    申请号：US11089220

    申请日：2005-03-24

    申请人： Pandharipande Ashish ,  Ho Yang ,  Hyoung-Woon Park ,  Ho-Jin Kim ,  Young-Ho Jung

    发明人： Pandharipande Ashish ,  Ho Yang ,  Hyoung-Woon Park ,  Ho-Jin Kim ,  Young-Ho Jung

    IPC分类号： H04K1/10 ,  H04L1/02

    CPC分类号： H04L27/2608 ,  H04L27/0008

    摘要： A bit/power loading method in an adaptive modulation-based multicarrier communication system computes ratios of modulation mode values to transmission power values sub-channel-by-sub-channel, selects a combination of sub-channels in which a sum of the ratios is maximized for a total number of bits to be simultaneously transmitted, and transmits signals in modulation modes corresponding to ratios of modulation mode values to transmission power values associated with the selected sub-channels. Because the bit/power loading method selects a combination of sub-channel modulation modes with the minimum total transmission power for a given number of bits on the basis of transmission power in each sub-channel modulation mode, the bits can be transmitted at the minimum transmission power in a given environment.

    摘要翻译： 基于自适应调制的多载波通信系统中的比特/功率加载方法计算调制模式值与发射功率值与子信道子信道的比率，选择其中比率之和为的子信道的组合 对于要同时发送的总比特数最大化，并且将与调制模式值的比率相对应的调制模式的信号发送到与所选择的子信道相关联的发送功率值。 因为比特/功率加载方法基于每个子信道调制模式中的发送功率来选择给​​定比特数的最小总发送功率的子信道调制模式的组合，所以可以最少地发送比特 传输功率在给定的环境中。