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    ANTENNA SYSTEM CALIBRATION
    1.
    发明授权
    ANTENNA SYSTEM CALIBRATION 有权

    公开(公告)号：EP2987202B1

    公开(公告)日：2018-10-17

    申请号：EP13715703.8

    申请日：2013-04-15

    申请人： Nokia Solutions and Networks Oy

    发明人： KAREISTO, Jukka ,  HEIKKINEN, Eero Olavi

    IPC分类号： H01Q3/26

    CPC分类号： H01Q3/267 ,  G01S7/40 ,  G06F17/10 ,  H01P5/18 ,  H01Q3/22 ,  H01Q9/0457 ,  H04B7/043 ,  H04B17/21 ,  H04L2027/0026

    摘要： A method for antenna calibration is disclosed, the method including driving calibration signals for antenna array beam calibration to an antenna array feeder line in a transceiver front end unit by using one or more directional couplers and/or radio frequency probes, wherein calibration signal paths are integrated inside the transceiver front end unit. Measurements are carried out on the calibration signals, between different antenna combinations inside the antenna array. Based on collected measurement data, calibration information is calculated for each measurement branch of the antenna array by using a mathematical formula. Active antenna array beam calibration is then performed based on the calculated calibration information.

    WIRELESS COMMUNICATION SYSTEM WITH MACRO DIVERSITY
    2.
    发明公开
    WIRELESS COMMUNICATION SYSTEM WITH MACRO DIVERSITY 审中-公开
    具有宏观多样性的无线通信系统

    公开(公告)号：EP3247046A1

    公开(公告)日：2017-11-22

    申请号：EP16170602.3

    申请日：2016-05-20

    申请人： Semtech Corporation

    发明人： SELLER, Olivier Bernard André ,  CHAMPION, Ludovic

    IPC分类号： H04B1/69 ,  H04L1/02

    CPC分类号： H04L49/555 ,  H04B1/69 ,  H04B2001/6912 ,  H04L1/0045 ,  H04L1/0061 ,  H04L1/02 ,  H04L5/0062 ,  H04L27/103 ,  H04L69/22 ,  H04L2001/0093 ,  H04L2027/0026 ,  H04W4/70

    摘要： A wireless communication system, comprising one or several nodes (A) equipped by a wireless radio interface that is adapted for transmitting digital messages modulated in the form of a series of frequency chirps, for example, LoRa-modulated radio signals. The message is received simultaneously by several base stations (C, D, E), and a server (S) is arranged for dividing the frames by the diverse stations and recombining a corrected frame for the intended recipient (B) based on error codes. Advantageously, the base stations being adapt their timing error compensation strategy when the error codes indicate a corruption of the message.

    摘要翻译： 一种无线通信系统，包括一个或多个配备有无线无线电接口的节点（A），适合于发送以一系列频率啁啾调制的数字消息，例如LoRa调制的无线电信号。 该消息由几个基站（C，D，E）同时接收，并且服务器（S）被安排用于通过不同站点分割帧，并且基于错误码为预期接收者（B）重新组合校正后的帧。 有利地，当错误码指示消息损坏时，基站适应它们的定时误差补偿策略。

    RECEIVER FOR FREQUENCY OFFSET CORRECTION
    3.
    发明公开
    RECEIVER FOR FREQUENCY OFFSET CORRECTION 有权
    接收器进行频率偏移校正

    公开(公告)号：EP3244584A1

    公开(公告)日：2017-11-15

    申请号：EP16169134.0

    申请日：2016-05-11

    申请人： Stichting IMEC Nederland

    发明人： VAN DEN HEUVEL, Johannes Henricus Cornelus

    IPC分类号： H04L27/14 ,  H04B1/00 ,  H03D3/00 ,  H04L27/16 ,  H04L27/00

    CPC分类号： H04L25/061 ,  H03D3/00 ,  H04B1/00 ,  H04L1/206 ,  H04L27/142 ,  H04L27/148 ,  H04L27/16 ,  H04L27/227 ,  H04L2027/0026

    摘要： According to an aspect of the present invention a receiver is provided. The receiver comprises a demodulator adapted to demodulate a radio frequency (RF) signal received at an input thereof and to output a demodulated signal. The receiver comprises a plurality of high-pass filters connected to an output of the demodulator for receiving and high-pass filtering the demodulated signal, wherein the plurality of high-pass filters are adapted to operate with a first set of filter responses during a first time period of the demodulated signal and operate with a second set of filter responses during a second time period of the demodulated signal.

    摘要翻译： 根据本发明的一个方面，提供了一种接收器。 该接收器包括解调器，该解调器适于解调在其输入处接收的射频（RF）信号并输出​​解调信号。 该接收机包括连接到解调器的输出的多个高通滤波器，用于接收高通滤波该解调信号，其中该多个高通滤波器适于在第一组滤波器响应期间在第一组 并且在解调信号的第二时间周期期间以第二组滤波器响应工作。

    USING MULTIPLE CORRELATORS TO DETERMINE SIGNAL SENT AND FREQUENCY OFFSET
    6.
    发明公开
    USING MULTIPLE CORRELATORS TO DETERMINE SIGNAL SENT AND FREQUENCY OFFSET 审中-公开
    VERWENDUNG MEHRERER KORRELATOREN ZUR BESTIMMUNG EINES GESENDETEN SIGNALS UND FREULENZVERSATZES

    公开(公告)号：EP3084973A1

    公开(公告)日：2016-10-26

    申请号：EP14812793.9

    申请日：2014-12-10

    申请人： Nordic Semiconductor ASA

    发明人： ENGELIEN-LOPES, David Alexandre ,  WICHLUND, Sverre ,  CORBISHLEY, Phil

    IPC分类号： H04B1/708 ,  H04B1/7087 ,  H04L7/04

    CPC分类号： H04B1/7087 ,  H04B17/336 ,  H04B2201/69 ,  H04L5/006 ,  H04L27/0014 ,  H04L27/227 ,  H04L2027/0026 ,  H04L2027/0034 ,  H04L2027/0046 ,  H04W4/80

    摘要： A digital radio receiver is adapted to receive radio signals modulated using continuous phase modulation. The receiver includes components for receiving analogue radio signals having various carrier frequencies and a plurality of correlators corresponding to different bit sequences. Each of the plurality of correlators share a common estimator for estimating a frequency offset between the radio signals carrier frequencies and nominal carrier frequencies. The receiver further includes components allowing the estimator to determine which of the correlators produce the most optimal output signal.

    摘要翻译： 数字无线电接收机54适于接收使用连续相位调制调制的无线电信号。 接收机包括用于接收具有载波频率的模拟无线电信号的装置，多个相关器6,8分别对应于不同的比特序列，共享用于估计所述载波频率和标称载波频率之间的频率偏差的公共估计器4， 以及用于确定所述相关器6,8中的哪一个产生期望的输出信号的装置12。

    ANTENNA SYSTEM CALIBRATION
    7.
    发明公开
    ANTENNA SYSTEM CALIBRATION 审中-公开
    ANTENNENSYSTEMKALIBRIERUNG

    公开(公告)号：EP2987202A1

    公开(公告)日：2016-02-24

    申请号：EP13715703.8

    申请日：2013-04-15

    申请人： Nokia Solutions and Networks Oy

    发明人： KAREISTO, Jukka ,  HEIKKINEN, Eero Olavi

    IPC分类号： H01Q3/26

    CPC分类号： H01Q3/267 ,  G01S7/40 ,  G06F17/10 ,  H01P5/18 ,  H01Q3/22 ,  H01Q9/0457 ,  H04B7/043 ,  H04B17/21 ,  H04L2027/0026

    摘要： A method for antenna calibration is disclosed, the method including driving calibration signals for antenna array beam calibration to an antenna array feeder line in a transceiver front end unit by using one or more directional couplers and/or radio frequency probes, wherein calibration signal paths are integrated inside the transceiver front end unit. Measurements are carried out on the calibration signals, between different antenna combinations inside the antenna array. Based on collected measurement data, calibration information is calculated for each measurement branch of the antenna array by using a mathematical formula. Active antenna array beam calibration is then performed based on the calculated calibration information.

    摘要翻译： 公开了一种用于天线校准的方法，所述方法包括：通过使用一个或多个定向耦合器和/或射频探针，通过使用一个或多个定向耦合器和/或射频探针，将用于天线阵列波束校准的校准信号驱动到收发器前端单元中的天线阵列馈线， 集成在收发器前端单元内。 在天线阵列内的不同天线组合之间的校准信号上进行测量。 基于收集的测量数据，通过使用数学公式计算天线阵列的每个测量分支的校准信息。 然后基于计算的校准信息执行有源天线阵列光束校准。

    Fast acquisition of frame timing and frequency
    8.
    发明公开
    Fast acquisition of frame timing and frequency 审中-公开
    帧定时和频率的快速检测

    公开(公告)号：EP2615770A3

    公开(公告)日：2014-11-05

    申请号：EP12192244.7

    申请日：2012-11-12

    申请人： Gilat Satellite Networks Ltd.

    发明人： Ram, Uzi ,  Levitsky, Michael ,  Bialer, Oded ,  Levitas, Guy

    IPC分类号： H04L7/04 ,  H04L27/00 ,  H04B7/185

    CPC分类号： H04L7/042 ,  H04L27/0014 ,  H04L2027/0026 ,  H04L2027/0087

    摘要： Modern digital signals include framing. A known sequence of transmission symbols (Unique Word (UW)) included in the transmitted signal may be used by a receiver for framing synchronization. A receiver configured to receive such a signal may be configured to detect the UW even when the signal is received with some frequency uncertainty (e.g. offset or error). A method is presented for fast acquisition of symbol and/or frame timing of a signal, including in the presence of frequency uncertainty. In some embodiments, the presented method may be used for determining a frequency offset of the received signal and a location of a unique word (UW) within a frame of the received signal, wherein said determining is based on a two-dimensional search map.

    RECEIVER APPARATUS, COMMUNICATION SYSTEM, RECEPTION METHOD AND COMMUNICATION METHOD
    10.
    发明公开
    RECEIVER APPARATUS, COMMUNICATION SYSTEM, RECEPTION METHOD AND COMMUNICATION METHOD 有权
    EMPFANGSGERÄT，KOMMUNIKATIONSSYSTEM，EMPFANGSVERFAHREN UND KOMMUNIKATIONSVERFAHREN

    公开(公告)号：EP2398204A1

    公开(公告)日：2011-12-21

    申请号：EP10741289.2

    申请日：2010-02-12

    申请人： Sharp Kabushiki Kaisha ,  Suzuki, Hiroshi ,  Fukawa, Kazuhiko ,  Suyama, Satoshi

    发明人： SUZUKI Hiroshi ,  FUKAWA Kazuhiko ,  SUYAMA Satoshi ,  YOSHIMOTO, Takashi ,  KUBOTA, Minoru ,  OKAMOTO, Naoki

    IPC分类号： H04L27/38 ,  H04L27/22

    CPC分类号： H04L27/3863 ,  H04L27/0014 ,  H04L27/2337 ,  H04L2027/0026

    摘要： A receiver apparatus 200 receiving a quadrature-modulated, modulated wave, includes: a real-zero signal generator 205 for adding a sinusoidal wave to the modulated wave to generate a real-zero signal; an in-phase and quadrature component detector 206 for extracting an in-phase component signal and a quadrature component signal from the real-zero signal; a real-zero sequence generator 207 for generating a real-zero sequence as a sequence of time points at which the in-phase component and quadrature component signals become zero; and a signal reconstruction unit 208 for reproducing the in-phase component and quadrature component from the real-zero sequence. With this, it is possible to provide a receiving apparatus etc. that enables decoding of a received signal with high precision even when sufficient linearity cannot be secured in the analog circuit of the receiver apparatus.

    摘要翻译： 接收正交调制调制波的接收机装置200包括：实零信号发生器205，用于将正弦波加到调制波以产生实零信号; 用于从实零信号中提取同相分量信号和正交分量信号的同相和正交分量检测器206; 用于产生实零序列作为同相分量和正交分量信号变为零的时间点序列的实数零序发生器207; 以及用于从实零序列再现同相分量和正交分量的信号重构单元208。 由此，即使在接收装置的模拟电路中不能确保足够的线性度的情况下，也能够提供能够高精度地对接收信号进行解码的接收装置等。