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

Applicant: SOUTHEAST UNIVERSITY ,  KONINKLIJKE PHILIPS ELECTRONICS N.V. ,  YANG, Luxi ,  LI, Yuanjie

Inventor： YANG, Luxi ,  LI, Yuanjie

IPC: H04L25/02

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。

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

Applicant: SOUTHEAST UNIVERSITY

Inventor： GAO, Xiqi ,  YOU, Li ,  WANG, Wenjin

IPC: H04B7/04

CPC classification number: H04L27/2655 ,  H04B7/01 ,  H04B7/0408 ,  H04B7/0413 ,  H04B7/0617 ,  H04L5/0048 ,  H04W56/005

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。

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

Applicant: SOUTHEAST UNIVERSITY ,  KONINKLIJKE PHILIPS ELECTRONICS N.V. ,  HUA, Guang ,  HONG, Wei ,  SONG, Hai

Inventor： HUA, Guang ,  HONG, Wei ,  SONG, Hai

IPC: H01Q1/38 ,  H01Q9/04 ,  H01Q15/00

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。

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

Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V. ,  SOUTHEAST UNIVERSITY ,  YANG, Luxi ,  QIAN, Yiqun

Inventor： YANG, Luxi ,  QIAN, Yiqun

IPC: H04L1/06

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。

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

Applicant: SOUTHEAST UNIVERSITY ,  KONINKLIJKE PHILIPS ELECTRONICS N.V. ,  HONG, Wei ,  HUA, Guang ,  SONG, Hai

Inventor： HONG, Wei ,  HUA, Guang ,  SONG, Hai

IPC: H01Q1/38 ,  H01Q9/04 ,  H01Q15/00

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。

公开(公告)号：WO2006079993A1

公开(公告)日：2006-08-03

申请号：PCT/IB2006/050295

申请日：2006-01-27

Applicant: SOUTHEAST UNIVERSITY ,  KONINKLIJKE PHILIPS ELECTRONICS N.V. ,  HONG, Wei ,  HUA, Guang ,  ZHOU, Xiang ,  ZHU, Xiaowei

Inventor： HONG, Wei ,  HUA, Guang ,  ZHOU, Xiang ,  ZHU, Xiaowei

IPC: H01Q21/26 ,  H01Q9/28 ,  H01Q21/00

CPC classification number: H01Q21/0006 ,  H01Q9/285 ,  H01Q21/26

Abstract: The present invention relates to a microstrip printed dipole antenna, comprising a ground plate and at least one microstrip dipole unit connected with the ground plate; the dipole unit including a dielectric substrate, dipole arm and balanced-unbalanced transformer (balun); the dipole arm being located on one side surface of the dielectric substrate, the balun being located on the other side surface of the dielectric substrate, compound units disposed on both sides of the dipole arm, and further compound units disposed on both sides of the balun; the compound units on both sides of the balun being connected with the compound units on both sides of the dipole via a metalized hole. The half-power bandwidth of an antenna is controlled by adjusting the distance between the dipole arm and the compound units, and the height of the compound units. For an antenna array comprising microstrip antennas having the compound units, the cross coupling between the antenna units can be reduced.

Abstract translation: 本发明涉及一种微带印刷偶极天线，包括接地板和与接地板连接的至少一个微带偶极子单元; 偶极单元包括电介质基板，偶极臂和平衡不平衡变压器（balun）; 偶极臂位于电介质基板的一个侧表面上，平衡 - 不平衡变换器位于电介质基板的另一侧表面上，配置在偶极臂两侧的复合单元以及设置在平衡不平衡两侧的其它复合单元 ; 平衡 - 不平衡转换器两侧的复合单元通过金属化孔与偶极子两侧的复合单元连接。 通过调整偶极臂和复合单元之间的距离以及复合单元的高度来控制天线的半功率带宽。 对于包括具有复合单元的微带天线的天线阵列，可以减小天线单元之间的交叉耦合。

公开(公告)号：WO1998014750A1

公开(公告)日：1998-04-09

申请号：PCT/CN1997000083

申请日：1997-08-20

Applicant: SOUTHEAST UNIVERSITY ,  LI, Bin

Inventor： SOUTHEAST UNIVERSITY

IPC: G01B05/08

CPC classification number: G01B5/08

Abstract: The gauge for measuring large diameter comprises a number of measuring units. Each measuring unit includes two position elements (11, 12), a fastener (14) and a body (13). These units are disposed on a circular surface and fixed by the fasteners one by one during measuring, until the remainder gap is not enough to dispose another measuring unit. Measuring the relevant geometric parameters and calculating the diameter according to the equation (I).

Abstract translation: 用于测量大直径的量规包括多个测量单元。 每个测量单元包括两个位置元件（11,12），紧固件（14）和主体（13）。 这些单元设置在圆形表面上，并在测量期间由紧固件一个接一个地固定，直到其余间隙不足以设置另一个测量单元。 根据等式（I）测量相关几何参数并计算直径。

公开(公告)号：WO2006079994A1

公开(公告)日：2006-08-03

申请号：PCT/IB2006/050296

申请日：2006-01-27

Applicant: SOUTHEAST UNIVERSITY ,  KONINKLIJKE PHILIPS ELECTRONICS N.V. ,  HUA, Guang ,  HONG, Wei

Inventor： HUA, Guang ,  HONG, Wei

IPC: H01Q13/18 ,  H01Q19/22

CPC classification number: H01Q13/18 ,  H01Q19/22

Abstract: The present invention relates to a radiation-enhanced cavity antenna with a dielectric substrate and the manufacturing method thereof. The antenna comprises a ground plate, a radiation-enhanced cavity, a feed network and an antenna director attached onto the feed network, wherein the radiation-enhanced cavity having a dielectric substrate is located between the ground plate and the feed network; the dielectric substrate has multiple metalized through holes enclosing and surrounding a certain area; and the distance between the metalized through holes enables the metalized through holes to at least partially reflect the electromagnetic wave transmitted in the dielectric substrate. The present invention has accomplished the radiation-enhanced cavity with the features of high Q value and low loss based on the dielectric substrate, and the radiation-enhanced cavity is produced by the printed circuit and has a simple structure and small size, and thus it is easy to be integrated. The present invention has the advantages of a wide bandwidth, high efficiency, high gain, a small back lobe of the antenna pattern and a preferred radiation property, and can be widely applied to the electronic devices such as the wireless communication device, radar, electronic navigation device and the electronic countermeasures device.

Abstract translation: 本发明涉及一种具有电介质基片的辐射增强腔天线及其制造方法。 天线包括接地板，辐射增强腔，馈电网络和连接到馈电网络上的天线导体，其中具有电介质衬底的辐射增强腔位于接地板和馈电网之间; 电介质基板具有包围并围绕某一区域的多个金属化通孔; 并且金属化通孔之间的距离使得金属通孔能够至少部分地反映在电介质基板中传输的电磁波。 本发明基于电介质基板实现了具有高Q值和低损耗特征的辐射增强腔，并且辐射增强腔由印刷电路产生并且具有简单的结构和小尺寸，因此它 易于集成。 本发明具有宽带宽，高效率，高增益，天线图案的小后瓣和优选的辐射特性的优点，并且可广泛应用于诸如无线通信设备，雷达，电子等电子设备 导航装置和电子对抗装置。

公开(公告)号：WO2016206032A1

公开(公告)日：2016-12-29

申请号：PCT/CN2015/082292

申请日：2015-06-25

Applicant: SOUTHEAST UNIVERSITY

Inventor： MENG, Xin ,  XIA, Xianggen ,  GAO, Xiqi

IPC: H04L25/00

CPC classification number: H04L25/024 ,  H04L25/0204 ,  H04L25/0256 ,  H04L25/0258 ,  H04L25/0391

Abstract: Described herein is an omnidirectional space-time coding scheme allowing signals to transmit from a base station to multiple user equipments in a massive MIMO system with reduced pilot overhead and system complexity. The transmission scheme uses a low-dimensional space-time coding scheme to generate a K×T d code block, and based on the K×T d code block, using an M×K precoding matrix W to generate an M×T d code block for transmission over a large number of transmitting antennas, wherein K is much smaller than M.

Abstract translation: 这里描述了一种全方位时空编码方案，其允许信号在具有降低的导频开销和系统复杂度的大规模MIMO系统中从基站发送到多个用户设备。 传输方案使用低维空时编码方案来生成K×Td码块，并且基于K×Td码块，使用M×K预编码矩阵W来生成用于传输的M×Td码块 在大量发射天线上，其中K远小于M

公开(公告)号：WO2016029394A1

公开(公告)日：2016-03-03

申请号：PCT/CN2014/085359

申请日：2014-08-28

Applicant: SOUTHEAST UNIVERSITY

Inventor： GAO, Xiqi ,  MENG, Xin ,  ZHONG, Wen

IPC: H04L5/00

CPC classification number: H04W16/28 ,  H04B7/0408 ,  H04B7/0413 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/0465 ,  H04B7/0617 ,  H04B7/0669 ,  H04L1/00 ,  H04L1/0042 ,  H04L1/0668 ,  H04L25/03898

Abstract: Described herein is an omni-directional transmission scheme allowing signals to transmit from a base station to multiple users in massive MIMO systems with reduced pilot overhead and system complexity. The transmission scheme uses a low-dimensional space-time coding scheme to generate a K-dimensional vector signal, and based on the K-dimensional vector signal, using an omni-directional precoding matrix W to generate an M-dimensional vector signal for transmission over a large number of transmitting antennas, wherein the matrix W comprises M rows and K columns, and K is much smaller than M.

Abstract translation: 这里描述的是一种全方位传输方案，允许信号在大量MIMO系统中从基站向多个用户发送，具有降低的导频开销和系统复杂度。 传输方案使用低维空时编码方案来生成K维向量信号，并且基于K维向量信号，使用全向预编码矩阵W生成用于传输的M维向量信号 通过大量发射天线，其中矩阵W包括M行和K列，并且K远小于M。