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    SYNCHRONIZATION METHOD, RECEIVING END, AND SENDING END
    5.
    发明公开
    SYNCHRONIZATION METHOD, RECEIVING END, AND SENDING END 审中-公开
    同步方法，接收结束和发送结束

    公开(公告)号：EP3113377A1

    公开(公告)日：2017-01-04

    申请号：EP14886461.4

    申请日：2014-03-17

    申请人： Huawei Technologies Co., Ltd.

    发明人： WU, Yiling ,  JI, Tong ,  YU, Zhiqin ,  ZHANG, Weiliang

    IPC分类号： H04B1/7087 ,  H04L27/28

    CPC分类号： H04L27/2692 ,  H04L27/2657

    摘要： The present invention provides a synchronization signal receiving method, including: receiving, by a receive end, a synchronization sequence sent by a transmit end, where the synchronization sequence includes a carrier frequency synchronization sequence, the carrier frequency synchronization sequence is zc ( m )= e ± jπm ( m +1+2 q )/ L , m = 0,1,..., L - 1, q ∈ Z , L indicates a length of the carrier frequency synchronization sequence, q indicates a parameter of the carrier frequency synchronization sequence, Z indicates an integer set, e ± jπm ( m +1+2 q )/ L indicates the (± jπm ( m +1+2 q )/ L ) th power of e , and e is a natural constant; and performing, by the receive end, frequency offset estimation according to the received synchronization sequence, to obtain a frequency offset estimation value. With the technical solutions of embodiments of the present invention, accuracy of frequency offset estimation can be improved.

    摘要翻译： 本发明提供了一种同步信号接收方法，包括：接收端接收发送端发送的同步序列，所述同步序列包括载波频率同步序列，所述载波频率同步序列为zc（m）= e±jπm（m + 1 + 2q）/ L，m = 0,1，...，L-1，q∈Z，L表示载波频率同步序列的长度，q表示载波频率 同步序列中，Z表示整数集合，e±jπm（m + 1 + 2q）/ L表示e的（±jm（m + 1 + 2q）/ L）次方，e是自然常数。 接收端根据接收到的同步序列进行频偏估计，得到频偏估计值。 利用本发明实施例的技术方案，可以提高频偏估计的准确性。

    ADAPTIVE PRECODING IN A MIMO WIRELESS COMMUNICATION SYSTEM
    6.
    发明公开
    ADAPTIVE PRECODING IN A MIMO WIRELESS COMMUNICATION SYSTEM 审中-公开
    MIMO无线通信系统中的自适应预编码

    公开(公告)号：EP3085042A1

    公开(公告)日：2016-10-26

    申请号：EP14871852.1

    申请日：2014-12-20

    申请人： Liang, Ping

    发明人： LIANG, Ping ,  ZHU, Dengkui

    IPC分类号： H04L27/28

    CPC分类号： H04B7/0482 ,  H04B7/0452 ,  H04B7/046 ,  H04B7/0626 ,  H04B7/0632 ,  H04L1/0026 ,  H04L5/0048 ,  H04L5/14 ,  H04W36/08 ,  H04W72/0413

    摘要： This invention presents methods for estimating MU-MIMO channel information using SU-MIMO channel information to choose a modulation and channel coding appropriate for the quality of the MU-MIMO channels, for adaptively selecting MU-MIMO precoding methods based on estimations of a plural of UEs and for compensating hardware impairments in MU-MIMO precoding.

    摘要翻译： 本发明提出了用于使用SU-MIMO信道信息来估计MU-MIMO信道信息以选择适合于MU-MIMO信道的质量的调制和信道编码的方法，用于基于多个MIMO信道的估计来自适应地选择MU-MIMO预编码方法 UE并且用于补偿MU-MIMO预编码中的硬件损伤。

    MODULATION DEVICE, DEMODULATION DEVICE, SOUND TRANSMISSION SYSTEM, PROGRAM, AND DEMODULATION METHOD
    7.
    发明公开
    MODULATION DEVICE, DEMODULATION DEVICE, SOUND TRANSMISSION SYSTEM, PROGRAM, AND DEMODULATION METHOD 审中-公开
    调制器件，解调，声音传输，方案和解调

    公开(公告)号：EP2849365A4

    公开(公告)日：2015-11-11

    申请号：EP14725906

    申请日：2014-02-13

    申请人： YAMAHA CORP

    发明人： MORIGUCHI SHOTA

    IPC分类号： H04J1/00 ,  H04B11/00 ,  H04L27/28 ,  H04L27/30

    CPC分类号： H04B11/00

    摘要： A problem is to increase possibility of extracting data from sound in a system which transmits data using the sound as a transmission medium. Frames are transmitted while shifting the transmission timing among a plurality of frequency bands, whereby tolerance for multipath fading, noise mixing, or the like is obtained and improvement of a substantial transmission rate can be expected compared to a case where one frame is transmitted using only one frequency band. When selecting blocks forming a frame, since a block is selected under a condition that a time period necessary for collecting sound, on which the blocks to be selected are superimposed, becomes shorter, even if a phenomenon, in which a substantial rate of data transmission decreases, occurs, it becomes possible to suppress a decrease in rate.

    MODULATION DEVICE, DEMODULATION DEVICE, SOUND TRANSMISSION SYSTEM, PROGRAM, AND DEMODULATION METHOD
    8.
    发明公开
    MODULATION DEVICE, DEMODULATION DEVICE, SOUND TRANSMISSION SYSTEM, PROGRAM, AND DEMODULATION METHOD 审中-公开
    调制设备，解调设备，声音传输系统，程序和解调方法

    公开(公告)号：EP2849365A1

    公开(公告)日：2015-03-18

    申请号：EP14725906.3

    申请日：2014-02-13

    申请人： YAMAHA CORPORATION

    发明人： MORIGUCHI, Shota

    IPC分类号： H04J1/00 ,  H04B11/00 ,  H04L27/28 ,  H04L27/30

    CPC分类号： H04B11/00

    摘要： A problem is to increase possibility of extracting data from sound in a system which transmits data using the sound as a transmission medium. Frames are transmitted while shifting the transmission timing among a plurality of frequency bands, whereby tolerance for multipath fading, noise mixing, or the like is obtained and improvement of a substantial transmission rate can be expected compared to a case where one frame is transmitted using only one frequency band. When selecting blocks forming a frame, since a block is selected under a condition that a time period necessary for collecting sound, on which the blocks to be selected are superimposed, becomes shorter, even if a phenomenon, in which a substantial rate of data transmission decreases, occurs, it becomes possible to suppress a decrease in rate.

    摘要翻译： 问题在于增加使用声音作为传输介质传输数据的系统中从声音提取数据的可能性。 一边在多个频带中移动发送定时一边发送帧，由此与仅使用一个帧发送一帧的情况相比，能够得到多路径衰落或噪声混合等的容许性，能够期待实质的传送速度的提高 一个频段。 当选择形成帧的块时，由于在收集要叠加选择的块的声音所需的时间段变短的条件下选择块，所以即使出现其中大量数据传输的现象 发生减少，可以抑制速度的降低。