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    METHOD FOR TRANSMITTING SIGNALS, USER EQUIPMENT THEREOF
    51.
    发明公开
    METHOD FOR TRANSMITTING SIGNALS, USER EQUIPMENT THEREOF 审中-公开
    VERFAHREN ZURSIGNALÜBERTRAGUNGUNDBENUTZERAUSRÜSTUNGDAFÜR

    公开(公告)号：EP2466930A4

    公开(公告)日：2017-05-10

    申请号：EP10807899

    申请日：2010-05-18

    申请人： ZTE CORP

    发明人： REN TIANMIN

    IPC分类号： H04L25/03 ,  H04B7/0456

    CPC分类号： H04L25/03343 ,  H04B7/0456

    摘要： The present invention discloses a method for signal transmission and a user equipment (UE), wherein said method comprises: user equipment UE calculating an MSE of a first layer of signal and an MSE of a second layer of signal; the UE selecting a pre-coding matrix from a plurality of pre-coding matrices according to the sum of the MSE of the first layer of signal and the MSE of the second layer of signal; and the UE informing a base station to use the selected pre-coding matrix to transmit signals. By way of the present invention, the correct transmission of signals is ensured, the block error rate of the system is reduced, and the throughput of the system is improved.

    摘要翻译： 本发明公开了一种信号传输方法和用户设备UE，其中，所述方法包括：用户设备UE计算第一层信号的MSE和第二层信号的MSE; UE根据第一层信号的MSE与第二层信号的MSE的和，从多个预编码矩阵中选择一个预编码矩阵; 并且UE通知基站使用所选择的预编码矩阵来发送信号。 通过本发明，确保了信号的正确传输，减少了系统的误块率，并且提高了系统的吞吐量。

    MULTICARRIER SUCCESSIVE PREDISTORTION FOR DIGITAL TRANSMISSION
    52.
    发明公开
    MULTICARRIER SUCCESSIVE PREDISTORTION FOR DIGITAL TRANSMISSION 审中-公开
    SUKZESSIVEMEHRTRÄGERVORVERZERRUNGFÜRDIGITALEÜBERTRAGUNG

    公开(公告)号：EP3155776A2

    公开(公告)日：2017-04-19

    申请号：EP15806065.7

    申请日：2015-06-12

    申请人： Hughes Network Systems, LLC

    发明人： BEIDAS, Bassel ,  SESHADRI, Rohit, Iyer ,  BECKER, Neal

    IPC分类号： H04L27/18 ,  H04L27/26 ,  H04L27/28

    CPC分类号： H03F3/195 ,  H03F1/3241 ,  H03F1/3247 ,  H03F1/3258 ,  H03F3/245 ,  H03F3/68 ,  H03F2200/111 ,  H03F2201/3236 ,  H04B1/0475 ,  H04B2001/0425 ,  H04L25/03343 ,  H04L27/2626

    摘要： An approach for improved compensation for nonlinear distortion in multicarrier satellite systems is provided. Source reflecting encoded and modulated sequences of source data symbols are received. Each source signal is predistorted, and a transmit filter is applied to each predistorted source signal. Each filtered signal is translated to a carrier frequency, and the translated signals are combined into a composite signal for transmission via a multicarrier transponder. The final predistorted version of each source signal is generated via an iterative process of a number of stages, wherein, for a given stage and for each source signal, the process comprises: receiving a prior predistorted version of each source signal from a preceding stage; processing each prior predistorted source signal based on all of the received prior predistorted source signals, wherein the processing is performed based on a characterization of one or more characteristics of the multicarrier satellite transponder.

    摘要翻译： 提供了一种用于改进多载波卫星系统中非线性失真补偿的方法。 接收反映源数据符号的编码和调制序列的源。 每个源信号被预失真，并且发射滤波器被应用于每个预失真的源信号。 每个经滤波的信号被转换为载波频率，并且转换后的信号被组合成复合信号以经由多载波转发器进行传输。 每个源信号的最终预失真版本通过多个级的迭代过程产生，其中对于给定级和对于每个源信号，该过程包括：从前一级接收每个源信号的先前预失真版本; 基于所有接收到的先前预失真源信号来处理每个先前的预失真源信号，其中基于多载波卫星转发器的一个或多个特性的表征来执行处理。

    SYSTEM AND METHOD FOR WIRELESS COMMUNICATIONS
    53.
    发明授权
    SYSTEM AND METHOD FOR WIRELESS COMMUNICATIONS 有权
    系统VERFAHRENFÜRDRAHTLOSE KOMMUNIKATION

    公开(公告)号：EP2328670B1

    公开(公告)日：2017-04-12

    申请号：EP09810549.7

    申请日：2009-08-26

    申请人： Huawei Technologies Co., Ltd.

    发明人： TANG, Yang

    IPC分类号： H04L25/03

    CPC分类号： H04L25/0204 ,  H04L1/0003 ,  H04L1/0009 ,  H04L25/03343

    摘要： A system and method for wireless communications is provided. A method for operating in a communications network includes receiving a codebook, the codebook includes a plurality of codewords, and determining if the codebook satisfies a constant modulus property. The method also includes in response to determining that the codebook does not satisfy the constant modulus property, converting the codebook into a codebook satisfying the constant modulus property, and storing the codebook satisfying the constant modulus property. The method further includes storing the codebook in response to determining that the codebook does satisfy the constant modulus property, and causing to transmit a transmission to a communications device, wherein the transmission is encoded using a codeword in the stored codebook.

    摘要翻译： 提供了一种用于无线通信的系统和方法。 一种用于在通信网络中操作的方法包括接收码本，码本包括多个码字，并且确定码本是否满足恒定模量特性。 该方法还包括响应于确定码本不满足常数模量特性，将码本转换成满足恒模特性的码本，并存储满足恒模特性的码本。 该方法还包括响应于确定码本确实满足恒模特性并且使得向通信设备发送传输，其中使用所存储的码本中的码字对传输进行编码，来存储码本。

    TRANSMITTER AND INTERFERENCE ELIMINATING METHOD
    56.
    发明公开
    TRANSMITTER AND INTERFERENCE ELIMINATING METHOD 审中-公开
    SENDER UNDERERERBBESEITIGUNGSVERFAHREN

    公开(公告)号：EP3145144A1

    公开(公告)日：2017-03-22

    申请号：EP14899048.4

    申请日：2014-08-01

    申请人： Huawei Technologies Co. Ltd.

    发明人： XIE, Huan ,  ZHOU, Xiaomin

    IPC分类号： H04L25/49

    CPC分类号： H04L25/03343 ,  H04B2001/0425 ,  H04L25/03847 ,  H04L25/49

    摘要： Embodiments of the present invention provide a transmitter and an interference cancellation method. The transmitter provided in the embodiments of the present invention includes: a feedback cancellation module, a first digital predistorter DPD and a power amplifier PA, where the feedback cancellation module is located on a feedback channel of the transmitter, and the feedback cancellation module is separately connected to the PA and the first DPD; the feedback cancellation module is configured to perform, according to a feedback cancellation signal, interference cancellation on a signal of the feedback channel, to acquire a first mixed signal, and send the first mixed signal to the first DPD; the first DPD is configured to perform linear predistortion processing according to a first baseband signal on a first transmit channel and the first mixed signal, to generate a first predistortion signal; and the PA is configured to amplify a to-be-transmitted signal and then transmit the signal by using an antenna, where the to-be-transmitted signal is the first predistortion signal or a signal obtained according to the first predistortion signal. The embodiments of the present invention can reduce distortion of a transmit signal.

    摘要翻译： 本发明的实施例提供发射机和干扰消除方法。 在本发明的实施例中提供的发射机包括：反馈消除模块，第一数字预失真器DPD和功率放大器PA，其中反馈消除模块位于发射机的反馈信道上，反馈消除模块分别 连接到PA和第一个DPD; 反馈消除模块被配置为根据反馈消除信号执行对反馈信道的信号的干扰消除，以获取第一混合信号，并将第一混合信号发送到第一DPD; 第一DPD被配置为根据第一发送信道上的第一基带信号和第一混合信号执行线性预失真处理，以产生第一预失真信号; 并且PA被配置为放大待发送的信号，然后通过使用天线发送信号，其中待传输的信号是第一预失真信号或根据第一预失真信号获得的信号。 本发明的实施例可以减少发射信号的失真。

    SYSTEM AND METHOD FOR COMMUNICATION USING ORBITAL ANGULAR MOMENTUM WITH MULTIPLE LAYER OVERLAY MODULATION
    58.
    发明公开
    SYSTEM AND METHOD FOR COMMUNICATION USING ORBITAL ANGULAR MOMENTUM WITH MULTIPLE LAYER OVERLAY MODULATION 审中-公开
    系统发现VERFAHREN ZUR KOMMUNIKATION MIT BAHNDREHIMPULS MIT MEHRSCHICHTIGERÜBERLAGERUNGSMODULATION

    公开(公告)号：EP3127266A1

    公开(公告)日：2017-02-08

    申请号：EP15773688.5

    申请日：2015-03-06

    申请人： NxGen Partners IP, LLC

    发明人： ASHRAFI, Solyman ,  LINQUIST, Roger ,  ASHRAFI, Nima

    IPC分类号： H04L5/04

    CPC分类号： H04B10/2575 ,  H04B10/11 ,  H04B10/2581 ,  H04B10/50 ,  H04B10/5161 ,  H04B10/532 ,  H04B10/541 ,  H04J14/00 ,  H04J14/06 ,  H04L9/0858 ,  H04L9/3093 ,  H04L25/03006 ,  H04L25/03343 ,  H04L27/3405 ,  H04L27/362 ,  H04L27/366 ,  H04L63/06 ,  H04L2025/0335 ,  H04L2025/0342 ,  H04W12/04

    摘要： A communications system includes a transmitter for transmitting an optical signal including a plurality of data streams over an optical communications link. The transmitter includes first signal processing circuitry for processing each of the plurality of input data streams to generate a parallel pair of data streams including an in-phase stream (I) and a quadrature-phase stream (Q) for each of the plurality of input data streams. The first signal processing circuitry modulates a first and second parallel pair of data streams with a selected one of at least three mutually orthogonal functions at a first and second signal widths, respectively, to generate a plurality of first data sub-layers and a plurality of second data sub-layers and generates a plurality of composite data stream by overlaying the first data subs-layers with the second data sub-layers at a preconfigured overlay offset. Second signal processing circuitry places the plurality of composite data streams on a wavelength of the optical communications link. Each of the plurality of composite data streams having a different orbital angular momentum associated therewith to enable transmission of each of the plurality of composite data streams on the wavelength at a same time.

    摘要翻译： 通信系统包括RF处理电路，用于接收多个数据流并处理多个数据流以与多个数据流中的每一个相关联，以使多个数据流中的每一个彼此相互正交 在RF链路上，以便能够同时在RF链路上传输多个数据流中的每一个。 光学处理电路接收多个数据流并处理多个数据流以与多个数据流中的每一个相关联，以使多个数据流中的每一个在光链路上相互正交 使得能够同时在光链路上传送多个数据流中的每一个。 响应于RF链路和光链路上的操作条件，开关电路在RF链路和光链路之间复用。

    DIRECT-DETECTED ORTHOGONAL FREQUENCY-DIVISION MULTIPLEXING WITH DISPERSION PRE-COMPENSATION DIGITAL SIGNAL PROCESSING
    60.
    发明公开
    DIRECT-DETECTED ORTHOGONAL FREQUENCY-DIVISION MULTIPLEXING WITH DISPERSION PRE-COMPENSATION DIGITAL SIGNAL PROCESSING 有权
    DIREKT ERKANNTES，ORTHOGONALES FREQUENZMULTIPLEXVERFAHREN MIT DIGITALSIGONDVERBEITUNG DURCH DISPERSIONSVORKOMPENSATION

    公开(公告)号：EP3100388A1

    公开(公告)日：2016-12-07

    申请号：EP15746228.4

    申请日：2015-02-04

    申请人： Huawei Technologies Co., Ltd.

    发明人： LI, Chuandong ,  CHEN, Chen ,  ZHANG, Zhuhong

    IPC分类号： H04J14/00

    CPC分类号： H04L27/2628 ,  H04B10/25137 ,  H04L25/03343 ,  H04L27/2634 ,  H04L27/368

    摘要： Chromatic dispersion is pre-compensated in a direct-detected orthogonal frequency-division multiplexed optical transmitter through digital signal processing methods, to generate signals that can be transmitted over an optical fiber. The dispersion pre-compensation digital signal processing may include multiplying subcarriers by a respective factor. The dispersion pre-compensation digital signal processing may instead include application of a finite impulse response filter to signals. The dispersion pre-compensation digital signal processing may instead include fast Fourier transformations of signals, application of a frequency domain filter to signals generated by the fast Fourier transformations, and inverse fast Fourier transformations of the signals produced by application of the frequency domain filter.

    摘要翻译： 通过数字信号处理方法在直接检测的正交频分复用光发射机中对色散进行预补偿，以产生可以通过光纤传输的信号。 色散预补偿数字信号处理可以包括将子载波乘以相应因子。 色散预补偿数字信号处理可以替代地包括对信号应用有限脉冲响应滤波器。 色散预补偿数字信号处理可以替代地包括信号的快速傅里叶变换，对由快速傅里叶变换产生的信号应用频域滤波器，以及通过应用频域滤波器产生的信号的快速傅里叶逆变换。