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    • 2. 发明授权
    • Reduced complexity channel estimation for uplink receiver
    • 减少上行链路接收机的复杂度信道估计
    • US08861569B2
    • 2014-10-14
    • US13620736
    • 2012-09-15
    • John P. PanickerGary BoudreauMichael PetrasEd Illidge
    • John P. PanickerGary BoudreauMichael PetrasEd Illidge
    • H04L25/02
    • H04L25/0256H04L25/0204H04L25/022H04L25/0232
    • The present invention proposes an LTE eNodeB receiver channel estimation technique that is referred to as reduced complexity minimum mean squared error (MMSE) technique for channel estimation. From the invention's assumptions, estimations and modified calculations, the present invention generates precise channel estimates of RS using the reduced complexity MMSE matrix and previously computed LS channel estimates HLS is as follows: (Formula I) which generates precise channel estimates of RS using the reduced complexity MMSE matrix and previously computed LS channel estimates. As a second aspect of the present invention, it is desired that the SNR be estimated within −3 dB of the actual channel SNR. As a third aspect of the invention, an adaptive method of data channel interpolation from RS channel is being proposed in this invention.
    • 本发明提出了LTE eNodeB接收机信道估计技术,其被称为降低复杂度的最小均方误差(MMSE)技术用于信道估计。 根据本发明的假设,估计和修改的计算,本发明使用降低的复杂度MMSE矩阵生成RS的精确信道估计,并且先前计算的LS信道估计HLS如下:(式I),其使用缩减的 复杂MMSE矩阵和先前计算的LS信道估计。 作为本发明的第二方面,期望将SNR估计在实际信道SNR的-3dB内。 作为本发明的第三方面,在本发明中提出了一种来自RS信道的数据信道插值的自适应方法。
    • 4. 发明申请
    • METHOD AND SYSTEM FOR REDUCED COMPLEXITY CHANNEL ESTIMATION AND INTERFERENCE CANCELLATION FOR V-MIMO DEMODULATION
    • 用于V-MIMO解调的减少复杂信道估计和干扰消除的方法和系统
    • US20110293028A1
    • 2011-12-01
    • US13129316
    • 2009-11-12
    • John P. PanickerGary D. BoudreauMichael PetrasEd Illidge
    • John P. PanickerGary D. BoudreauMichael PetrasEd Illidge
    • H04L27/28H04W24/00
    • H04L25/0202H04J11/0036H04J11/005H04J11/0056H04J11/0059H04L1/0048H04L25/0204H04W24/00
    • A method and system for wireless communication in a wireless communication network. The wireless communication network has a first mobile terminal and a second mobile terminal arranged in virtual multiple input, multiple output (“V-MIMO”) communication with a base station. A first wireless communication uplink channel corresponding to the first mobile terminal is estimated. The estimate is based on a first reference symbol signal and the cancellation of interference from a second reference symbol signal received from the second mobile terminal. A second wireless communication uplink channel corresponding to the second mobile terminal is estimated. The estimate is based on the second reference symbol signal and the cancellation of interference from the first reference symbol signal received from the first mobile terminal. The estimated first wireless communication uplink channel is used to demodulate a first data signal received from the first wireless device, and the estimated second wireless communication uplink channel is used to demodulate a second data signal received from the second wireless device.
    • 一种用于无线通信网络中无线通信的方法和系统。 无线通信网络具有配置在与基站的虚拟多输入,多输出(“V-MIMO”)通信中的第一移动终端和第二移动终端。 估计对应于第一移动终端的第一无线通信上行链路信道。 估计基于第一参考符号信号和从第二移动终端接收到的第二参考符号信号的干扰消除。 估计对应于第二移动终端的第二无线通信上行链路信道。 估计基于第二参考符号信号和从第一移动终端接收到的来自第一参考符号信号的干扰的消除。 估计的第一无线通信上行链路信道用于解调从第一无线设备接收的第一数据信号,并且使用估计的第二无线通信上行链路信道来解调从第二无线设备接收的第二数据信号。
    • 5. 发明授权
    • Method and system for reduced complexity channel estimation and interference cancellation for V-MIMO demodulation
    • 用于V-MIMO解调的复杂度信道估计和干扰消除的方法和系统
    • US08724723B2
    • 2014-05-13
    • US13129316
    • 2009-11-12
    • John P. PanickerGary D. BoudreauMichael PetrasEd Illidge
    • John P. PanickerGary D. BoudreauMichael PetrasEd Illidge
    • H04L27/28
    • H04L25/0202H04J11/0036H04J11/005H04J11/0056H04J11/0059H04L1/0048H04L25/0204H04W24/00
    • A method and system for wireless communication in a wireless communication network. The wireless communication network has a first mobile terminal and a second mobile terminal arranged in virtual multiple input, multiple output (“V-MIMO”) communication with a base station. A first wireless communication uplink channel corresponding to the first mobile terminal is estimated. The estimate is based on a first reference symbol signal and the cancellation of interference from a second reference symbol signal received from the second mobile terminal. A second wireless communication uplink channel corresponding to the second mobile terminal is estimated. The estimate is based on the second reference symbol signal and the cancellation of interference from the first reference symbol signal received from the first mobile terminal. The estimated first wireless communication uplink channel is used to demodulate a first data signal received from the first wireless device, and the estimated second wireless communication uplink channel is used to demodulate a second data signal received from the second wireless device.
    • 一种用于无线通信网络中无线通信的方法和系统。 无线通信网络具有配置在与基站的虚拟多输入,多输出(“V-MIMO”)通信中的第一移动终端和第二移动终端。 估计对应于第一移动终端的第一无线通信上行链路信道。 估计基于第一参考符号信号和从第二移动终端接收到的第二参考符号信号的干扰消除。 估计对应于第二移动终端的第二无线通信上行链路信道。 估计基于第二参考符号信号和从第一移动终端接收到的来自第一参考符号信号的干扰的消除。 估计的第一无线通信上行链路信道用于解调从第一无线设备接收的第一数据信号,并且使用估计的第二无线通信上行链路信道来解调从第二无线设备接收的第二数据信号。
    • 6. 发明申请
    • Reduced Complexity Channel Estimation for Uplink Receiver
    • 降低上行链路接收机的复杂度信道估计
    • US20130182746A1
    • 2013-07-18
    • US13620736
    • 2012-09-15
    • John P. PanickerGray BoudreauMichael PetrasEd Illidge
    • John P. PanickerGray BoudreauMichael PetrasEd Illidge
    • H04L25/02
    • H04L25/0256H04L25/0204H04L25/022H04L25/0232
    • The present invention proposes an LTE eNodeB receiver channel estimation technique that is referred to as reduced complexity minimum mean squared error (MMSE) technique for channel estimation. From the invention's assumptions, estimations and modified calculations, the present invention generates precise channel estimates of RS using the reduced complexity MMSE matrix and previously computed LS channel estimates HLS is as follows: (Formula I) which generates precise channel estimates of RS using the reduced complexity MMSE matrix and previously computed LS channel estimates. As a second aspect of the present invention, it is desired that the SNR be estimated within −3 dB of the actual channel SNR. As a third aspect of the invention, an adaptive method of data channel interpolation from RS channel is being proposed in this invention.
    • 本发明提出了LTE eNodeB接收机信道估计技术,其被称为降低复杂度的最小均方误差(MMSE)技术用于信道估计。 根据本发明的假设,估计和修改的计算,本发明使用降低的复杂度MMSE矩阵生成RS的精确信道估计,并且先前计算的LS信道估计HLS如下:(式I),其使用缩减的 复杂MMSE矩阵和先前计算的LS信道估计。 作为本发明的第二方面,期望将SNR估计在实际信道SNR的-3dB内。 作为本发明的第三方面,在本发明中提出了一种来自RS信道的数据信道插值的自适应方法。
    • 7. 发明申请
    • Frequency selective high impedance surface
    • 频率选择性高阻抗表面
    • US20060044211A1
    • 2006-03-02
    • US10927944
    • 2004-08-27
    • Ramamurthy RamprasadMichael PetrasChi Tsai
    • Ramamurthy RamprasadMichael PetrasChi Tsai
    • H01Q15/24
    • H01Q15/008H01Q1/22H01Q1/48
    • Disclosed herein are various high-impedance surfaces having high capacitance and inductance properties. One exemplary high-impedance surface includes a plurality of conductive structures arranged in a lattice, wherein at least a subset of the conductive structures include a plurality of conductive plates arranged along a conductive post so that the conductive plates of one conductive structure interleave with one or more conductive plates of one or more adjacent conductive structure. Another exemplary high-impedance surface includes a plurality of conductive structures arranged in a lattice, where the conductive structures include one or more fractalized conductive plates having either indentions and/or projections that are coextensive with corresponding projections or indentations, respectively, of one or more adjacent conductive structures. Also disclosed are various exemplary implementations of such high-impedance surfaces.
    • 这里公开了具有高电容和电感特性的各种高阻抗表面。 一个示例性的高阻抗表面包括布置成格子的多个导电结构,其中导电结构的至少一个子集包括沿着导电柱布置的多个导电板,使得一个导电结构的导电板与一个或多个导电结构交错 一个或多个相邻导电结构的更多导电板。 另一个示例性的高阻抗表面包括以格子布置的多个导电结构,其中导电结构包括一个或多个分形导电板,其具有与一个或多个相应的相应突起或凹部共同延伸的凹陷和/或突起 相邻的导电结构。 还公开了这种高阻抗表面的各种示例性实施方式。