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    Mimo beamforming-based single carrier frequency division multiple access system
    2.
    发明授权
    Mimo beamforming-based single carrier frequency division multiple access system 有权
    基于Mimo波束成形的单载波频分多址系统

    公开(公告)号：US09184808B2

    公开(公告)日：2015-11-10

    申请号：US14048020

    申请日：2013-10-07

    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION

    Inventor： Guodong Zhang ,  Kyle Jung-Lin Pan ,  Robert L. Olesen ,  Allan Y. Tsai

    IPC: H04B7/04 ,  H04B7/06 ,  H04B7/08 ,  H04L5/02 ,  H04L25/02 ,  H04L27/26

    CPC classification number: H04B7/0417 ,  H04B7/0617 ,  H04B7/086 ,  H04L5/023 ,  H04L25/0248 ,  H04L27/2601 ,  H04L27/2614 ,  H04L27/2647

    Abstract: A multiple-input multiple-output (MIMO) beamforming-based single carrier frequency division multiple access (SC-FDMA) system is disclosed. At the transmitter, a fast Fourier transform (FFT) is performed on transmission data to generate frequency domain data. The frequency domain transmit data is mapped to assigned subcarriers. An inverse fast Fourier transform (IFFT) is performed on the transmit data mapped to the assigned subcarriers to generate time domain transmit data. The time domain transmit data is transmitted via antennas. At a receiver, an FFT is performed on the received data to generate frequency domain received data. Subcarrier demapping is performed to extract data mapped on the assigned subcarriers. A channel estimator generates a channel matrix which is decomposed into U, D and VH matrices. A channel distortion and interference between transmit and receive antennas are equalized based on the decomposed channel matrices to the extracted frequency domain received data.

    Abstract translation: 公开了一种基于多输入多输出（MIMO）波束成形的单载波频分多址（SC-FDMA）系统。 在发射机上，对传输数据进行快速傅里叶变换（FFT）以产生频域数据。 频域发射数据被映射到分配的子载波。 对映射到所分配的子载波的发送数据执行快速傅里叶逆变换（IFFT），以生成时域发送数据。 时域发送数据通过天线发送。 在接收机处，对接收到的数据执行FFT以产生频域接收的数据。 执行子载波解映射以提取映射在所分配的子载波上的数据。 信道估计器生成分解为U，D和VH矩阵的信道矩阵。 基于分解的信道矩阵到提取的频域接收数据，发送和接收天线之间的信道失真和干扰被均衡。

    CHANNEL AND NOISE ESTIMATION FOR DOWNLINK LTE
    3.
    发明申请
    CHANNEL AND NOISE ESTIMATION FOR DOWNLINK LTE 审中-公开
    下行LTE的频道和噪声估计

    公开(公告)号：US20160337105A1

    公开(公告)日：2016-11-17

    申请号：US15156148

    申请日：2016-05-16

    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION

    Inventor： William E. Lawton ,  Manasa Raghavan ,  Lakshmi R. Iyer ,  Muhammad U. Fazili ,  Louis E. Pouliot ,  Allan Y. Tsai ,  Alpaslan Demir ,  Shane S. Supplee

    IPC: H04L5/00 ,  H04W72/04 ,  H04L12/26

    CPC classification number: H04L5/0057 ,  H04B7/0619 ,  H04B17/309 ,  H04B17/336 ,  H04L1/0026 ,  H04L1/0028 ,  H04L5/0007 ,  H04L25/0232

    Abstract: Systems, methods, and instrumentalities for a WTRU to perform channel estimation and/or noise estimation are provided. The techniques described herein may be used to perform channel estimation and/or noise estimation that meet certain performance and latency goals while utilizing a lower cost design than previous channel/noise estimation techniques. For example, the channel estimation/noise estimation techniques described herein may be implemented using less memory (e.g., less memory for storing filter coefficients) while still achieving the desired latency and performance goals. The techniques described herein may be implemented by any WTRU and/or by a WTRU specifically designed to be low-cost.

    Abstract translation: 提供了WTRU执行信道估计和/或噪声估计的系统，方法和手段。 本文描述的技术可以用于执行符合某些性能和延迟目标的信道估计和/或噪声估计，同时使用比先前的信道/噪声估计技术更低的成本设计。 例如，本文描述的信道估计/噪声估计技术可以使用更少的存储器（例如，用于存储滤波器系数的较少存储器）来实现，同时仍然实现期望的延迟和性能目标。 本文描述的技术可以由任何WTRU和/或由专门设计成低成本的WTRU来实现。

    MIMO BEAMFORMING-BASED SINGLE CARRIER FREQUENCY DIVISION MULTIPLE ACCESS SYSTEM
    9.
    发明申请
    MIMO BEAMFORMING-BASED SINGLE CARRIER FREQUENCY DIVISION MULTIPLE ACCESS SYSTEM 有权
    基于MIMO射频的单载波频分多址接入系统

    公开(公告)号：US20140036655A1

    公开(公告)日：2014-02-06

    申请号：US14048020

    申请日：2013-10-07

    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION

    Inventor： Guodong Zhang ,  Kyle Jung-Lin Pan ,  Robert L. Olesen ,  Allan Y. Tsai

    IPC: H04B7/04

    CPC classification number: H04B7/0417 ,  H04B7/0617 ,  H04B7/086 ,  H04L5/023 ,  H04L25/0248 ,  H04L27/2601 ,  H04L27/2614 ,  H04L27/2647

    Abstract: A multiple-input multiple-output (MIMO) beamforming-based single carrier frequency division multiple access (SC-FDMA) system is disclosed. At the transmitter, a fast Fourier transform (FFT) is performed on transmission data to generate frequency domain data. The frequency domain transmit data is mapped to assigned subcarriers. An inverse fast Fourier transform (IFFT) is performed on the transmit data mapped to the assigned subcarriers to generate time domain transmit data. The time domain transmit data is transmitted via antennas. At a receiver, an FFT is performed on the received data to generate frequency domain received data. Subcarrier demapping is performed to extract data mapped on the assigned subcarriers. A channel estimator generates a channel matrix which is decomposed into U, D and VH matrices. A channel distortion and interference between transmit and receive antennas are equalized based on the decomposed channel matrices to the extracted frequency domain received data.

    Abstract translation: 公开了一种基于多输入多输出（MIMO）波束成形的单载波频分多址（SC-FDMA）系统。 在发射机上，对传输数据进行快速傅里叶变换（FFT）以产生频域数据。 频域发射数据被映射到分配的子载波。 对映射到所分配的子载波的发送数据执行快速傅里叶逆变换（IFFT），以生成时域发送数据。 时域发送数据通过天线发送。 在接收机处，对接收到的数据执行FFT以产生频域接收的数据。 执行子载波解映射以提取映射在所分配的子载波上的数据。 信道估计器生成分解为U，D和VH矩阵的信道矩阵。 基于分解的信道矩阵到提取的频域接收数据，发送和接收天线之间的信道失真和干扰被均衡。

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