デジタルコーディングメタマテリアルに基づく直接放射無線デジタル通信システム及びその方法

    公开(公告)号:JP2021501500A

    公开(公告)日:2021-01-14

    申请号:JP2020520805

    申请日:2018-08-24

    Abstract: 本発明では、送信システム及び受信システムを含み、送信システムが受信する情報がプログラマブルメタマテリアルにロードされ、フィードアンテナの照射により常に変化するファーフィールドパターンの形で自由空間に直接放射され、受信システムはファーフィールド領域における異なる位置にある受信アンテナが受信した電界値をまとめてファーフィールドパターンを形成し、ファーフィールドパターンとコード配列との間のマッピング関係に基づいて送信されたオリジナル情報に復元するデジタルプログラマブルメタマテリアルに基づく直接放射無線デジタル通信システムが開示される。本発明の通信システムでは、デジタル−アナログ変換及びミキサのモジュールが省略されるため、通信システムの複雑さが大幅に簡単化され、通信システムのコストが削減され、本質的に秘密保護特性を有し、伝送される情報がシングルポイント又は非キーポイントから傍受されないことを最も基本的な物理的レベルから保証でき、性能の向上が容易であり、自己適応及び自己感知の能力を有する。 【選択図】図1

    METHOD AND APPARATUS FOR ESTIMATING CHANNEL BASED ON IMPLICIT TRAINING SEQUENCES
    5.
    发明申请
    METHOD AND APPARATUS FOR ESTIMATING CHANNEL BASED ON IMPLICIT TRAINING SEQUENCES 审中-公开
    基于内隐训练序列估计信道的方法和装置

    公开(公告)号:WO2007029142A2

    公开(公告)日:2007-03-15

    申请号:PCT/IB2006/052988

    申请日:2006-08-29

    CPC classification number: H04L25/0204 H04B7/04 H04L25/0228 H04L25/0244

    Abstract: The present invention provides a channel estimation method and apparatus based on implicit training sequences for use in wireless communication systems, characterized in that stationary training sequences are superimposed with information sequences for transmission at the transmitting side and channel estimation is performed at the receiving side by using the uncorrelated characteristic between the training sequences and the information sequences, that is, channel estimation is done based on the principle that the estimation result of channel parameter converges to a Wiener solution under the condition that the training sequences and information sequences in the transmission signals are uncorrelated. The method of the invention comprises steps of: obtaining a set of training sequences comprising a plurality of subsets of training sequences, each of the plurality of subsets is generated based on a known initial training sequence and a predetermined channel order; calculating the cross-correlation matrix for the subsets of training sequences and the corresponding inverse matrix; calculating the cross-correlation matrix for the set of training sequences and the received signals; and estimating channel parameters based on the inverse cross-correlation matrix for the subsets of training sequences and the cross-correlation matrix for the set of training sequences and the received signals.

    Abstract translation: 本发明提供了一种基于用于无线通信系统的隐式训练序列的信道估计方法和装置,其特征在于,固定的训练序列与信息序列叠加,以便在发射侧进行传输,并且信道估计 是利用训练序列与信息序列之间的不相关特性在接收端进行的,即根据信道参数估计结果收敛于维纳解的原理进行信道估计,其条件是训练序列 并且传输信号中的信息序列是不相关的。 本发明的方法包括以下步骤:获得包括多个训练序列子集的一组训练序列,基于已知的初始训练序列和预定的信道顺序来生成多个子集中的每一个; 为训练序列的子集和相应的逆矩阵计算互相关矩阵; 计算该组训练序列和接收信号的互相关矩阵; 以及基于用于训练序列的子集的逆互相关矩阵和用于该组训练序列和接收信号的互相关矩阵来估计信道参数。

    METHOD AND DEVICE FOR CHANNEL ESTIMATION IN CDMA COMMUNICATION SYSTEM
    6.
    发明申请
    METHOD AND DEVICE FOR CHANNEL ESTIMATION IN CDMA COMMUNICATION SYSTEM 审中-公开
    CDMA通信系统中信道估计的方法和装置

    公开(公告)号:WO2006082546A1

    公开(公告)日:2006-08-10

    申请号:PCT/IB2006/050299

    申请日:2006-01-27

    CPC classification number: H04L25/0238

    Abstract: A method and device for channel estimation are disclosed. The method comprises the steps of classifying sub-vectors of a decorrelated sample signal in a channel into two subsets, determining centers of the two subsets, and estimating a channel vector of the channel according to the determined centers of the subsets. The method can be implemented by the device. The method and device can only utilize a first-order statistic information of the received signal to perform the accumulate operation with an amount of calculation much less than that of other effective blind estimation algorithms, and are particularly suitable for implementation by logic circuits. Furthermore, satisfactory estimation accuracy can be obtained by only using a very short data frame.

    Abstract translation: 公开了一种用于信道估计的方法和装置。 该方法包括以下步骤:将信道中解相关样本信号的子向量分成两个子集,确定两个子集的中心,以及根据确定的子集的中心估计信道的信道向量。 该方法可以由设备实现。 该方法和装置只能利用接收信号的一阶统计信息来执行累加运算,其计算量远远小于其他有效盲估计算法的计算量,特别适用于逻辑电路的实现。 此外,仅通过使用非常短的数据帧可以获得令人满意的估计精度。

    SYSTEMS AND METHODS FOR WIRELESS COMMUNICATION WITH PER-BEAM SIGNAL SYNCHRONIZATION
    7.
    发明申请
    SYSTEMS AND METHODS FOR WIRELESS COMMUNICATION WITH PER-BEAM SIGNAL SYNCHRONIZATION 审中-公开
    用于具有每波束信号同步的无线通信的系统和方法

    公开(公告)号:WO2018076362A1

    公开(公告)日:2018-05-03

    申请号:PCT/CN2016/104104

    申请日:2016-10-31

    Abstract: Signal transmitting/receiving electronic devices or terminals in the present disclosure are configured to conduct per-beam signal synchronization in massive MIMO communication with a signal receiving/transmitting device or base station. During the massive MIMO communication, the devices or terminals are configured to transmit/receive signals via a set of beams to or from the signal receiving/transmitting device or base station. For beam domain signal of each individual beam of the plurality beams, the devices or terminals are configured to determine target time adjustments based on time shifts of the beam domain signals induced by multipath effect and target frequency adjustments based on frequency offsets of the beam domain signals induced by the Doppler effect; adjust time independent variables of the beam domain signals by the time adjustments; and adjust frequency independent variables of the beam domain signals by the frequency adjustments. Further, per-beam synchronized BDMA massive MIMO transmission method is disclosed, which provides a solution to efficient and reliable wireless communications with high mobility and/or high carrier frequency.

    Abstract translation: 本公开中的信号发送/接收电子设备或终端被配置为在与信号接收/发送设备或基站的大规模MIMO通信中进行每波束信号同步。 在大规模MIMO通信期间,设备或终端被配置为经由一组到达或来自信号接收/发送设备或基站的波束发送/接收信号。 对于多个波束中的每个单独波束的波束域信号,设备或终端被配置为基于由多径效应引起的波束域信号的时移和基于波束域信号的频率偏移的目标频率调整来确定目标时间调整 由多普勒效应引起; 通过时间调整来调整波束域信号的时间独立变量; 并通过频率调整来调整波束域信号的频率独立变量。 此外,还公开了每波束同步BDMA大量MIMO传输方法,其提供了高移动性和/或高载波频率的高效可靠无线通信的解决方案。

    MICROSTRIP ANTENNA AND FABRICATOIN METHOD THEREOF
    8.
    发明申请
    MICROSTRIP ANTENNA AND FABRICATOIN METHOD THEREOF 审中-公开
    MICROSTRIP天线及其制作方法

    公开(公告)号:WO2006079996A1

    公开(公告)日:2006-08-03

    申请号:PCT/IB2006/050298

    申请日:2006-01-27

    CPC classification number: H01Q15/006 H01Q1/38 H01Q9/0407

    Abstract: The present invention discloses a microstrip antenna, comprising: a ground plate; a radiant plate, wherein the radiant plate being an isosceles triangle having a "U"-shape cut thereon with the opening facing towards the bottom side of the triangle; at least one connector connected to the radiant plate via a feeding point disposed on the radiant plate, through which the radiant plate can be excited from beneath the ground plate to form electromagnetic radiation; a first set of apertures disposed on the ground plate for enhancing the dominant wave; and a second set of apertures further disposed on the ground plate for weakening other secondary waves instead of dominant wave. The microstrip antenna of the present invention has an improved bandwidth, reduced cross coupling between the antenna units, and improved antenna performance.

    Abstract translation: 本发明公开了一种微带天线,包括:接地板; 辐射板,其中所述辐射板是具有在其上切割的“U”形的等腰三角形,其开口面向所述三角形的底侧; 至少一个连接器,经由设置在辐射板上的馈电点连接到辐射板,辐射板可以通过该馈电点从接地板下方激发以形成电磁辐射; 设置在接地板上的用于增强主波的第一组孔; 以及另外设置在接地板上的第二组孔,用于削弱其它二次波而不是主波。 本发明的微带天线具有改进的带宽,减小了天线单元之间的交叉耦合,并改善了天线性能。

    SIGNAL TRANSMITTING/RECEIVING APPARATUS AND METHOD FOR MULTI-INPUT MULTI-OUTPUT WIRELESS COMMUNICATION SYSTEM
    9.
    发明申请
    SIGNAL TRANSMITTING/RECEIVING APPARATUS AND METHOD FOR MULTI-INPUT MULTI-OUTPUT WIRELESS COMMUNICATION SYSTEM 审中-公开
    用于多输入多输出无线通信系统的信号发送/接收装置和方法

    公开(公告)号:WO2007000709A1

    公开(公告)日:2007-01-04

    申请号:PCT/IB2006/052073

    申请日:2006-06-26

    CPC classification number: H04L1/0668

    Abstract: A signal transmitting/receiving apparatus and method for wireless communication system is disclosed. The transmitting apparatus in the present invention comprises a multi-path output selector for dividing the input information sequence into multiple paths, so as to obtain multiple shunt signals; and multiple transmitting units corresponding to the multiple shunt signals respectively. Each of the transmitting units includes a serial-to-parallel converter for serial-to-parallel converting of the shunt signals so as to obtain multiple block signals of a predetermined length; and a space-time block coder for space- time block coding the block signals so as to obtain multiple sets of coded block signals having orthogonality in the frequency domain. The corresponding receiving apparatus is also disclosed in the present invention. Compared with the prior art, the present invention is provided with higher coding rate and is more applicable to fast changing time-varying channels, and has less computation complexity.

    Abstract translation: 公开了一种用于无线通信系统的信号发送/接收装置和方法。 本发明的发送装置包括:多路径输出选择器,用于将输入信息序列划分成多个路径,以便获得多个分路信号; 以及分别对应于多个分流信号的多个发送单元。 每个发送单元包括用于并行转换分流信号的串并转换器,以获得预定长度的多个块信号; 以及空时块编码器,用于对块信号进行空时块编码,以便获得在频域中具有正交性的多组编码块信号。 在本发明中也公开了相应的接收装置。 与现有技术相比,本发明具有更高的编码率,更适用于快速变化的时变信道,并且具有较少的计算复杂度。

    MICROSTRIP ANTENNA AND FABRICATION METHOD THEREOF
    10.
    发明申请
    MICROSTRIP ANTENNA AND FABRICATION METHOD THEREOF 审中-公开
    MICROSTRIP天线及其制造方法

    公开(公告)号:WO2006079995A2

    公开(公告)日:2006-08-03

    申请号:PCT/IB2006/050297

    申请日:2006-01-27

    CPC classification number: H01Q9/0407 H01Q1/38 H01Q9/0435 H01Q15/006

    Abstract: The present invention discloses a microstrip antenna, comprising: a ground plate; a radiant plate; at least one connector connected to the radiant plate via a feeding point disposed on the radiant plate, through which the radiant plate can be excited from beneath the ground plate to form electromagnetic radiation; a first set of apertures disposed on said ground plate for enhancing the dominant wave; and a second set of apertures further disposed on said ground plate for weakening other secondary waves instead of dominant wave. The microstrip antenna of the present invention has an improved bandwidth, reduced cross coupling between the antenna units, and improved antenna performance.

    Abstract translation: 本发明公开了一种微带天线,包括:接地板; 辐射板; 至少一个连接器,经由设置在辐射板上的馈电点连接到辐射板,辐射板可以通过该馈电点从接地板下方激发以形成电磁辐射; 设置在所述接地板上的用于增强主波的第一组孔; 以及进一步设置在所述接地板上的第二组孔,用于削弱其他二次波而不是主波。 本发明的微带天线具有改进的带宽,减少了天线单元之间的交叉耦合,并改善了天线性能。

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