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    METHOD AND RADIO NODE FOR CONTROLLING RADIO TRANSMISSION
    2.
    发明公开
    METHOD AND RADIO NODE FOR CONTROLLING RADIO TRANSMISSION 审中-公开
    VERFAHREN UND FUNKKNOTEN ZUR STEUERUNG EINERFUNKÜBERTRAGUNG

    公开(公告)号：EP3149860A1

    公开(公告)日：2017-04-05

    申请号：EP14737046.4

    申请日：2014-05-27

    Applicant: Telefonaktiebolaget LM Ericsson (publ)

    Inventor： HEINIKOSKI, Kauko ,  LEINONEN, Marko E

    IPC: H04B1/04

    CPC classification number: H04B1/62 ,  H03F1/3241 ,  H03F1/3247 ,  H04B1/0475 ,  H04B1/525 ,  H04B7/0639 ,  H04B10/697 ,  H04B2001/0425 ,  H04B2210/25

    Abstract: A method and radio node for controlling transmission of radio signals in a transmitter band to avoid or reduce interference in a victim band, the victim band being separate from the transmitter band in frequency domain. The radio node applies Digital Pre-Distortion, DPD, on signals to be transmitted on at least one carrier in the transmitter band, such that Intermodulation Distortion, IMD, components of the signals are pre-distorted asymmetrically relative the at least one carrier to suppress at least one of the IMD components falling within the victim band. The pre-distorted signals are then amplified in a power amplifier and transmitted on the at least one carrier.

    Abstract translation: 一种用于控制发射机频带中的无线电信号的传输以避免或减少受害者频带中的干扰的方法和无线电节点（800），所述受害者频带在频域中与发射机频带分离。 无线电节点（800）对发射机频带中的至少一个载波上要传输的信号应用（502）数字预失真DPD，使得互调失真，IMD，信号分量相对于 至少一个载波来抑制落在受害者频带内的IMD组件中的至少一个。 然后，预失真信号在功率放大器中被放大（504），并在至少一个载波上传输（506）。

    METHOD FOR PROLONGING TRANSMISSION DISTANCE OF PASSIVE OPTICAL NETWORK SYSTEM AND OPTICAL LINE TERMINAL
    3.
    发明公开
    METHOD FOR PROLONGING TRANSMISSION DISTANCE OF PASSIVE OPTICAL NETWORK SYSTEM AND OPTICAL LINE TERMINAL 审中-公开
    程序续期的无源光网络系统的传输距离和光线路连接

    公开(公告)号：EP2961086A2

    公开(公告)日：2015-12-30

    申请号：EP13807614.6

    申请日：2013-09-03

    Applicant: ZTE Corporation

    Inventor： CHEN, Xue ,  CHEN, Yangyang ,  SU, Jie ,  LI, Changlei ,  HE, Zian ,  HUANG, Xingang ,  ZHOU, Xian

    IPC: H04B10/2507

    CPC classification number: H04B10/25133 ,  H04B10/697 ,  H04Q11/0067 ,  H04Q2011/0079

    Abstract: Disclosed are a method for prolonging the transmission distance of a passive optical network system and an optical line terminal. The method includes: acquiring each EDC tap coefficient corresponding to each ONU; and according to the each EDC tap coefficient corresponding to the each ONU, performing dispersion compensation respectively on an uplink signal sent from the each ONU. Thus the dispersion suffered by ONUs at different transmission distances can be pertinently compensated, so that the transmission distance of the system can be effectively prolonged.

    Abstract translation: 公开的是用于延长无源光网络系统的传输距离和到光线路终端的方法。 该方法包括：获取每个EDC抽头系数对应于每个ONU; 和gemäß到EDC每个抽头系数对应于每个ONU，分别上执行色散补偿的上行链路从各ONU发送的信号。 因此，在不同的传输距离通过的ONU所受的分散体可以有针对性地补偿，所以没有该系统的传输距离可以有效地延长。

    Light receiving device and light receiving method
    6.
    发明公开
    Light receiving device and light receiving method 有权
    Lichtempfangsvorrichtung und Lichtempfangsverfahren

    公开(公告)号：EP2343841A1

    公开(公告)日：2011-07-13

    申请号：EP10197368.3

    申请日：2010-12-30

    Applicant: FUJITSU LIMITED

    Inventor： Nakashima, Hisao ,  Hoshida, Takeshi

    IPC: H04B10/158

    CPC classification number: H04B10/6165 ,  H04B10/6161 ,  H04B10/6162 ,  H04B10/6164 ,  H04B10/697 ,  H04L7/0335

    Abstract: A light receiving device includes: a converter digitalizing an analog signal with a given sampling clock frequency, the analog signal being obtained through a photoelectric conversion of a received optical signal; a plurality of fixed distortion compensators compensating an output signal of the converter for waveform distortion with a fixed compensation amount that is different from each other; a plurality of phase shift detector circuits detecting a sampling phase shift from an output signal of the plurality of the fixed distortion compensators; a phase-adjusting-amount determiner determining a sampling phase adjusting amount with use of an output signal of the plurality of the phase shift detector circuits; and a phase adjusting circuit reducing a phase difference between the sampling clock frequency and the received optical signal based on a determination result of the phase-adjusting-amount determiner.

    Abstract translation: 光接收装置包括：转换器，其以给定的采样时钟频率对模拟信号进行数字化，所述模拟信号通过所接收的光信号的光电转换获得; 多个固定失真补偿器，其以相互不同的固定补偿量补偿所述转换器的输出信号的波形失真; 多个相移检测器电路，从多个固定失真补偿器的输出信号检测采样相移; 相位调整量确定器，利用多个相移检测器电路的输出信号确定采样相位调整量; 以及相位调整电路，根据相位调整量判定器的判定结果，减小采样时钟频率与接收到的光信号之间的相位差。

    DIGITAL RADIO-FREQUENCY TRANCEIVER SYSTEM AND METHOD
    9.
    发明公开
    DIGITAL RADIO-FREQUENCY TRANCEIVER SYSTEM AND METHOD 审中-公开
    DIGITALES HF-SENDE- / EMPFANGSSYSTEM UND VERFAHREN

    公开(公告)号：EP2263332A2

    公开(公告)日：2010-12-22

    申请号：EP09721141.1

    申请日：2009-03-12

    Applicant: Hypres Inc.

    Inventor： GUPTA, Deepnarayan ,  MUKHANOV, Oleg ,  HITT, Richard, E.

    IPC: H04B10/02 ,  H04B10/00 ,  H04B10/12

    CPC classification number: H04B10/25752 ,  H04B10/2575 ,  H04B10/40 ,  H04B10/5561 ,  H04B10/697 ,  H04L27/2096

    Abstract: A transceiver architecture for wireless base stations wherein a broadband radio frequency signal is carried between at least one tower-mounted unit and a ground-based unit via optical fibers, or other non-distortive media, in either digital or analog format. Each tower-mounted unit (for both reception and transmission) has an antenna, analog amplifier and an electro-optical converter. The ground unit has ultrafast data converters and digital frequency translators, as well as signal linearizers, to compensate for nonlinear distortion in the amplifiers and optical links in both directions. In one embodiment of the invention, at least one of the digital data converters, frequency translators, and linearizers includes superconducting elements mounted on a cryocooler.

    Abstract translation: 一种用于无线基站的收发机架构，其中宽带射频信号通过数字或模拟格式的光纤或其他非畸变媒体在至少一个塔式装置单元和基于地面的装置之间承载。 每个塔式装置（用于接收和传输）都具有天线，模拟放大器和电光转换器。 地面单元具有超快数据转换器和数字频率转换器以及信号线性化器，以补偿放大器和光学链路在两个方向上的非线性失真。 在本发明的一个实施例中，数字数据转换器，频率转换器和线性化器中的至少一个包括安装在低温冷却器上的超导元件。

    Digital coherent optical receiver
    10.
    发明公开
    Digital coherent optical receiver 有权
    KohärenteroptischerDigitalempfänger

    公开(公告)号：EP2256960A1

    公开(公告)日：2010-12-01

    申请号：EP10162121.7

    申请日：2010-05-06

    Applicant: FUJITSU LIMITED

    Inventor： Nakashima, Hisao ,  Hoshida, Takeshi

    IPC: H04B10/148 ,  H04B10/158

    CPC classification number: H04B10/697 ,  H04B10/61 ,  H04B10/611 ,  H04B10/613 ,  H04B10/6165

    Abstract: A digital coherent optical receiver provided with a 90-degree optical hybrid circuit (10) for detecting an in-phase signal and a quadrature signal of an input optical signal, includes first through fourth circuits (21a-21d). The first circuit (21a) is configured to calculate a square of a sum of the in-phase signal and the quadrature signal. The second circuit (21b) is configured to subtract a squared value of the in-phase signal and a squared value of the quadrature signal from the calculation result of the first circuit. The third circuit (21c) is configured to detect a phase error of the 90-degree optical hybrid circuit based on the calculation result of the second circuit. The fourth circuit (21d) is configured to correct at least one of the in-phase signal and the quadrature signal according to the phase error detected by the third circuit.

    Abstract translation: 具有用于检测输入光信号的同相信号和正交信号的90度光混合电路（10）的数字相干光接收机包括第一至第四电路（21a-21d）。 第一电路（21a）被配置为计算同相信号和正交信号之和的平方。 第二电路（21b）被配置为从第一电路的计算结果中减去同相信号的平方值和正交信号的平方值。 第三电路（21c）被配置为基于第二电路的计算结果来检测90度光混合电路的相位误差。 第四电路（21d）被配置为根据由第三电路检测到的相位误差来校正同相信号和正交信号中的至少一个。

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