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    ZERO-IF RADIO RECEIVER CALIBRATION PARAMETER DETERMINATION METHOD AND ZERO-IF WIRELESS RECEIVER
    4.
    发明公开
    ZERO-IF RADIO RECEIVER CALIBRATION PARAMETER DETERMINATION METHOD AND ZERO-IF WIRELESS RECEIVER 审中-公开

    公开(公告)号：EP3379783A1

    公开(公告)日：2018-09-26

    申请号：EP15910524.6

    申请日：2015-12-17

    申请人： Huawei Technologies Co., Ltd.

    发明人： ZHANG, Lie ,  BAI, Jianxiong ,  LI, Meifeng ,  LI, Qiang

    IPC分类号： H04L25/03

    CPC分类号： H04B17/21 ,  H04B1/0071 ,  H04L25/03 ,  H04L27/38

    摘要： Embodiments of the present invention provide a method for determining a calibration parameter of a zero intermediate frequency radio receiver, and a zero intermediate frequency radio receiver. The method includes: obtaining a plurality of sub-band training signals, where a sum of the plurality of sub-band training signals is a fullband training signal; determining a sub-band calibration parameter corresponding to each of the plurality of sub-band training signals; determining a fullband calibration signal according to the plurality of sub-band training signals and the sub-band calibration parameter corresponding to each of the plurality of sub-band training signals; and performing coefficient fitting on the fullband training signal and the fullband calibration signal, to determine a fullband calibration parameter. Because sub-band calibration parameters are obtained according to a plurality of different sub-band training signals, aliasing between an image signal and a training signal can be reduced. Therefore, a speed and precision of determining a calibration parameter can be improved.

    LOW COST MILLIMETER WAVE RECEIVER AND METHOD FOR OPERATING SAME
    5.
    发明公开
    LOW COST MILLIMETER WAVE RECEIVER AND METHOD FOR OPERATING SAME 审中-公开

    公开(公告)号：EP3376685A1

    公开(公告)日：2018-09-19

    申请号：EP18161243.3

    申请日：2018-03-12

    申请人： The Boeing Company

    发明人： ENG, John E ,  YU, Frank S

    IPC分类号： H04B7/185 ,  H04B1/00 ,  H04B7/155

    CPC分类号： H04B1/0071 ,  H04B1/00 ,  H04B1/1036 ,  H04B1/40 ,  H04B1/7097 ,  H04B7/155 ,  H04B7/18515 ,  H04B2001/1054 ,  H04B2201/7097

    摘要： A low cost millimeter wave receiver and method for operating same is disclosed. In one embodiment, the method comprises receiving the first signal, converting the first signal of the first bandwidth into an intermediate frequency band, splitting the converted first signal into N of intermediate signals, each having a bandwidth less than the digital processor bandwidth, wherein N is an integer greater than one, downconverting each of the N intermediate signals to the second frequency band, processing the downconverted plurality of signals with the digital processor to generate N processed signals, upconverting each of the N processed signals to the intermediate frequency band, converting the upconverted signals to the third frequency band, and transmitting the converted signals.

    WIRELESS COMMUNICATION DEVICE AND WIRELESS COMMUNICATION DEVICE CONTROL METHOD
    6.
    发明公开
    WIRELESS COMMUNICATION DEVICE AND WIRELESS COMMUNICATION DEVICE CONTROL METHOD 有权
    无线通信设备及其控制方法无线通信设备的

    公开(公告)号：EP2615740A1

    公开(公告)日：2013-07-17

    申请号：EP10857003.7

    申请日：2010-09-10

    申请人： Fujitsu Limited

    发明人： TANII, Takashi ,  MAEDA, Mitsunori ,  KISHIGAMI, Kazushige ,  TAKAYAMA, Naohito ,  MANPO, Mitsuhiko

    IPC分类号： H04B1/30 ,  H04B1/26 ,  H04L27/00

    CPC分类号： H04L27/12 ,  H04B1/0071

    摘要： An antenna (9) receives an RF signal (101) and an RF signal (102) at different frequency bands. An oscillator (1) outputs a local oscillator signal at a frequency f1. An oscillator (2) outputs a local oscillator signal at a frequency f2. A modulator (3) modulates the frequency based on the local oscillator signal at the frequency f1 and the local oscillator signal at the frequency f2, and generates a plurality of local oscillator signals at different frequencies. A frequency converter (41) mixes the plurality of local oscillator signals, at different frequencies, generated by the modulator (3), with the RF signal (101) and the RF signal (102), and generates baseband signals of the RF signal (101) and the RF signal (102). A signal processor (8) performs a predetermined process for the baseband signals generated by the frequency converter (41).

    摘要翻译： 的天线（9）接收在射频信号（101）并且在不同频带的RF信号（102）。 的振荡器（1）输出在频率f1的本机振荡器信号。 振荡器（2）输出在频率f2的本机振荡器信号。 调制器（3）调制基础上在频率f1的本机振荡器信号和在频率f2的本地振荡器信号，以及基因率在不同的频率的本地振荡器信号的多个频率。 频率转换器（41）混合的本地振荡器信号的多元性，在不同的频率，由所述调制器（3）产生的，与RF信号的RF信号（101）和RF信号（102），并且基因率基带信号（ 101）和RF信号（102）。 的信号处理器（8），进行用于由频率转换器（41）生成的基带信号执行预定处理。

    Digital front-end for multi-standard transmitter and multi-standard base station
    7.
    发明公开
    Digital front-end for multi-standard transmitter and multi-standard base station 审中-公开
    数字电视多标准发送器和多标准基站

    公开(公告)号：EP1890386A1

    公开(公告)日：2008-02-20

    申请号：EP06291320.7

    申请日：2006-08-16

    申请人： Alcatel Lucent

    发明人： Pascht, Andreas ,  Strauss, Jens

    IPC分类号： H04B1/04

    CPC分类号： H04B1/0071 ,  H04B1/005 ,  H04B1/0057 ,  H04L27/0002 ,  H04L27/0008 ,  H04W88/06 ,  H04W88/10

    摘要： A digital front-end (4.1) for a multi-standard transmitter (1). The proposed digital front-end comprises:
    - a dedicated block (4.1a) with a plurality of digital signal-processing/adaptation modules (4.111-4.143) for processing digital signals in connection with a plurality of communication standards;
    - a common block (1.4b) located behind said dedicated block (4.1a), said common block (4.1b) comprising a number of digital signal-processing modules (4.151-4.172) common for all of said plurality of communication standards; and
    - a switchable connecting means (4.1c) for transferring at least one of the signals output from said dedicated block (4.1 a) to the common block (4.1b).

    摘要翻译： 多标准变送器（1）的数字前端（4.1）。 所提出的数字前端包括：具有多个数字信号处理/适配模块（4.111-4.143）的专用块（4.1a），用于处理与多个通信标准有关的数字信号; - 位于所述专用块（4.1a）后面的公共块（1.4b），所述公共块（4.1b）包括对于所述多个通信标准的所有共同的多个数字信号处理模块（4.151-4.172） 以及 - 用于将从所述专用块（4.1a）输出的至少一个信号传送到所述公共块（4.1b）的可切换连接装置（4.1c）。

    CLIPPING METHOD AND APPARATUS
    9.
    发明公开
    CLIPPING METHOD AND APPARATUS 审中-公开

    公开(公告)号：EP3379784A1

    公开(公告)日：2018-09-26

    申请号：EP15910553.5

    申请日：2015-12-17

    申请人： Huawei Technologies Co., Ltd.

    发明人： YAO, Jianzhong

    IPC分类号： H04L27/26

    CPC分类号： H04L27/2623 ,  H04B1/0071 ,  H04B1/0475 ,  H04L5/001 ,  H04L27/26 ,  H04W72/0453 ,  H04W72/082 ,  H04W88/085

    摘要： Embodiments of the present invention provide a clipping method and an apparatus. The clipping apparatus is a base station, and the base station includes a baseband unit BBU and a remote radio unit RRU. The BBU includes a first processor, and the RRU includes a second processor. The first processor is configured to: perform clipping after combining N input carriers, and output N carriers obtained after a first level of clipping; and the second processor is configured to: perform clipping after combining the N carriers obtained after the first level of clipping, and output N carriers obtained after a second level of clipping, where N is an integer greater than or equal to 2. In the foregoing solution, the base station separately performs clipping at the BBU and the RRU, so that the base station can flexibly select, according to processing capabilities of different baseband processing boards or baseband chips, a baseband processing board or a baseband chip to deploy the first level of clipping, which improves scalability of clipping performed by the base station.

    WIRELESS COMMUNICATION DEVICE AND WIRELESS COMMUNICATION DEVICE CONTROL METHOD
    10.
    发明授权
    WIRELESS COMMUNICATION DEVICE AND WIRELESS COMMUNICATION DEVICE CONTROL METHOD 有权
    无线通信设备和无线通信设备控制方法

    公开(公告)号：EP2615740B1

    公开(公告)日：2017-12-27

    申请号：EP10857003.7

    申请日：2010-09-10

    申请人： Fujitsu Limited

    发明人： TANII, Takashi ,  MAEDA, Mitsunori ,  KISHIGAMI, Kazushige ,  TAKAYAMA, Naohito ,  MANPO, Mitsuhiko

    IPC分类号： H04B1/30 ,  H04B1/26 ,  H04L27/00 ,  H04B1/00

    CPC分类号： H04L27/12 ,  H04B1/0071

    摘要： An antenna (9) receives an RF signal (101) and an RF signal (102) at different frequency bands. An oscillator (1) outputs a local oscillator signal at a frequency f1. An oscillator (2) outputs a local oscillator signal at a frequency f2. A modulator (3) modulates the frequency based on the local oscillator signal at the frequency f1 and the local oscillator signal at the frequency f2, and generates a plurality of local oscillator signals at different frequencies. A frequency converter (41) mixes the plurality of local oscillator signals, at different frequencies, generated by the modulator (3), with the RF signal (101) and the RF signal (102), and generates baseband signals of the RF signal (101) and the RF signal (102). A signal processor (8) performs a predetermined process for the baseband signals generated by the frequency converter (41).