公开(公告)号：EP3190715A4

公开(公告)日：2018-05-02

申请号：EP15838383

申请日：2015-09-03

申请人： ADVANCED TELECOMMUNICATIONS RES INSTITUTE INTERNATIONAL ,  FUJIKURA LTD

发明人： TSUKAMOTO SATOSHI ,  MAEDA TAKAHIRO ,  HOU YAFEI ,  ARIYOSHI MASAYUKI ,  KOBAYASHI KIYOSHI ,  SUZUKI FUMIO ,  NIWA ATSUHIKO

IPC分类号： H04B5/00 ,  H01Q13/20 ,  H01Q13/22 ,  H01Q21/28 ,  H01Q25/00 ,  H04B7/0413 ,  H04B7/10 ,  H04J99/00

CPC分类号： H01Q13/22 ,  H01Q13/203 ,  H01Q21/28 ,  H01Q25/004 ,  H04B5/0018 ,  H04B7/0413 ,  H04B7/10

摘要： A composite cable (4) houses a plurality of leaky coaxial cables having mutually different radiation characteristics. The leaky coaxial cable (2a, 2b) includes therein an inner conductor and an outer conductor, and has a plurality of leakage slots. The plurality of leakage slots have different slot periods relative to the axial direction or arranged in different slot patterns. The digital wireless communication device feeds a high-frequency signal from an end of the composite cable (4) and performs MIMO (multiple-input multiple-output) communication.

公开(公告)号：EP3309984A1

公开(公告)日：2018-04-18

申请号：EP16807334.4

申请日：2016-06-01

申请人： Panasonic Intellectual Property Corporation of America

发明人： MURAKAMI, Yutaka ,  KIMURA, Tomohiro ,  OUCHI, Mikihiro

IPC分类号： H04J99/00 ,  H04J11/00

CPC分类号： H04J11/0023 ,  H04B1/02 ,  H04B1/06 ,  H04B7/0456 ,  H04B7/063 ,  H04B7/10 ,  H04J11/00 ,  H04L25/02

摘要： A first transmission signal z 1 (t) and a second transmission signal z 2 (t) are generated from a first modulated signal s 1 (t) and a second modulated signal s 2 (t) by using a precoding matrix, and parameters of the precoding matrix are calculated from feedback information.

摘要翻译： 通过使用预编码矩阵从第一调制信号s1（t）和第二调制信号s2（t）中生成第一发送信号z1（t）和第二发送信号z2（t），并且预编码矩阵的参数是 根据反馈信息计算。

公开(公告)号：EP3309577A2

公开(公告)日：2018-04-18

申请号：EP17191327.0

申请日：2017-09-15

申请人： Panasonic Corporation

发明人： KISHIGAMI, Takaaki

IPC分类号： G01S7/28 ,  G01S13/42 ,  G01S13/93 ,  G01S13/28

CPC分类号： G01S13/34 ,  G01S7/02 ,  G01S7/28 ,  G01S7/282 ,  G01S7/285 ,  G01S13/288 ,  G01S13/42 ,  G01S13/46 ,  G01S13/931 ,  H01Q3/26 ,  H01Q21/06 ,  H01Q21/08 ,  H04B7/10

摘要： A radar apparatus includes: a radar transmitter that transmits a plurality of radar signals while switching among a plurality of transmitting subarrays; and a radar receiver that receives reflected-wave signals produced by the plurality of radar signals being reflected by a target, the plurality of radar signals being transmitted from the respective transmitting subarrays. In the radar apparatus, each of the plurality of transmitting subarrays includes a plurality of transmitting antennas, and adjacent ones of the plurality of transmitting subarrays share at least one of the plurality of transmitting antennas with each other.

摘要翻译： 一种雷达设备，包括：雷达发射器，其在多个发射子阵列之间切换的同时发射多个雷达信号; 以及雷达接收器，其接收由目标反射的多个雷达信号所产生的反射波信号，所述多个雷达信号从各个发射子阵列发射。 在雷达装置中，多个发射子阵列中的每一个包括多个发射天线，并且多个发射子阵列中的相邻发射子阵列共享多个发射天线中的至少一个发射天线。

公开(公告)号：EP3172838A4

公开(公告)日：2018-04-18

申请号：EP15824664

申请日：2015-07-21

申请人： COHERE TECH INC

发明人： HADANI RONNY ,  RAKIB SHLOMO SELIM

IPC分类号： H03H7/30 ,  H04B7/0413 ,  H04B7/10 ,  H04L25/02 ,  H04L27/26

CPC分类号： H04B7/10 ,  H04B7/0413 ,  H04L5/0048 ,  H04L25/0202 ,  H04L25/0204 ,  H04L25/0222 ,  H04L25/03159 ,  H04L27/2608 ,  H04L27/2613 ,  H04L27/2634 ,  H04L27/2639 ,  H04L27/2646 ,  H04L27/2649

摘要： Fiber, cable, and wireless data channels are typically impaired by reflectors and other imperfections, producing a channel state with echoes and frequency shifts in data waveforms. Here, methods of using OTFS pilot symbol waveform bursts to automatically produce a detailed 2D model of the channel state are presented. This 2D channel state can then be used to optimize data transmission. For wireless data channels, an even more detailed 2D model of channel state can be produced by using polarization and multiple antennas in the process. Once 2D channel states are known, the system turns imperfect data channels from a liability to an advantage by using channel imperfections to boost data transmission rates. The methods can be used to improve legacy data transmission modes in multiple types of media, and are particularly useful for producing new types of robust and high capacity wireless communications using non-legacy OTFS data transmission methods.

公开(公告)号：EP2534765B1

公开(公告)日：2018-04-11

申请号：EP11704002.2

申请日：2011-02-08

申请人： Andrew Wireless Systems GmbH

发明人： FACCIN, Pier ,  TARLAZZI, Luigi

IPC分类号： H04B7/0413 ,  H04B7/10 ,  H04W16/20 ,  H04B7/06 ,  H04B7/022 ,  H04B7/0426 ,  H04B7/026 ,  H04B7/0452 ,  H04B17/309

CPC分类号： H04B7/0413 ,  H04B7/022 ,  H04B7/026 ,  H04B7/0426 ,  H04B7/0452 ,  H04B7/0691 ,  H04B7/10 ,  H04B17/309

摘要： A method of deploying a distributed antenna system (DAS) is provided. The method comprises outputting first and second signals from a multiple-input and multiple-output base station (MIMO BTS) and coupling a master unit to the MIMO BTS. The method further comprises coupling first and second remote units to the master unit, the first remote unit communicating the first signal over a first air interface located within the environment at a first location, the second remote unit communicating the second signal over a second air interface within the environment at a second location. The first and second remote units are arranged at the first and second locations within the environment and configured to provide signal coverage of both the first signal and the second signal at a third location in the environment to provide the capacity for MIMO communications through the system at the third location.

公开(公告)号：EP3300263A1

公开(公告)日：2018-03-28

申请号：EP17174250.5

申请日：2011-04-06

申请人： Telefonaktiebolaget LM Ericsson (publ)

发明人： Hammarwall, David ,  Jöngren, George

IPC分类号： H04B7/04 ,  H04B7/06

CPC分类号： H04B7/0456 ,  H04B7/0465 ,  H04B7/0469 ,  H04B7/0478 ,  H04B7/0634 ,  H04B7/0639 ,  H04B7/0647 ,  H04B7/065 ,  H04B7/10 ,  H04L5/0044 ,  H04W72/0413

摘要： The teachings herein present a method (700, 900) and apparatus (10, 12) that implement and use a factorized precoder structure that is advantageous in terms of performance and efficiency. In particular, the teachings presented herein disclose an underlying precoder structure that allows for certain codebook reuse across different transmission scenarios, including for transmission from a single Uniform Linear Array (ULA) of transmit antennas (14) and transmission from cross-polarized subgroups of such antennas (14). According to this structure, an overall precoder (36) is constructed from a conversion precoder (32) and a tuning precoder (34). The conversion precoder (32) includes antenna-subgroup precoders (38) of size N T /2, where N T represents the number of overall antenna ports (98) considered. Correspondingly, the tuning precoder (34) controls the offset of beam phases between the antenna-subgroup precoders (38), allowing the conversion precoder (32) to be used with cross-polarized arrays of N T /2 antenna elements and with co-polarized arrays of N T antenna elements.

摘要翻译： 这里的教导提出了实现和使用在性能和效率方面有利的分​​解预编码器结构的方法（700,900）和装置（10,12）。 特别地，本文给出的教导公开了一种潜在的预编码器结构，其允许在不同的传输情况下的某些码本重用，包括用于从发射天线（14）的单个均匀线性阵列（ULA）进行发射以及来自这样的交叉极化子组 天线（14）。 根据这种结构，整个预编码器（36）由转换预编码器（32）和调谐预编码器（34）构成。 转换预编码器（32）包括大小为NT / 2的天线子组预编码器（38），其中NT表示所考虑的整个天线端口（98）的数量。 相应地，调谐预编码器（34）控制天线子组预编码器（38）之间的波束相位的偏移，允许转换预编码器（32）与NT / 2天线元件的交叉极化阵列一起使用，并且与共极化 NT个天线元件阵列。

公开(公告)号：EP2795531B1

公开(公告)日：2018-03-21

申请号：EP12806304.7

申请日：2012-12-12

申请人： Symbol Technologies, LLC

发明人： KOCH, Michael, J.

IPC分类号： G06K7/10 ,  H04B7/04

CPC分类号： G06K7/10356 ,  H01Q1/2216 ,  H01Q3/247 ,  H01Q3/26 ,  H04B7/04 ,  H04B7/0617 ,  H04B7/0691 ,  H04B7/0695 ,  H04B7/10

摘要： A method and apparatus are disclosed for improving RFID coverage using an antenna array having an adaptive antenna beam. The apparatus includes an RFID reader including an antenna array having a plurality of antenna elements. Subsets of the plurality of antenna elements are selectively activating in order to direct an antenna beam to communicate with at least one RFID tag. The method includes transmitting an interrogation signal from an antenna array by activating one or more subsets of a plurality of antenna elements forming the antenna array. In this way, the interrogation signal is directed thereby improving antenna coverage.

公开(公告)号：EP3240312A4

公开(公告)日：2018-03-07

申请号：EP16749106

申请日：2016-02-03

申请人： OMRON TATEISI ELECTRONICS CO

发明人： UEKI DAICHI ,  SAITO KEISUKE ,  HAYAMA KOSUKE

IPC分类号： H04B7/10 ,  H04B7/26 ,  H04B10/54 ,  H04B10/556 ,  H04Q9/00 ,  H04Q9/02

CPC分类号： H04W4/046 ,  H04B7/10 ,  H04B7/2612 ,  H04B10/541 ,  H04B10/5561 ,  H04Q9/00 ,  H04Q9/02 ,  H04W4/04

摘要： Provided is a wireless communication control system including a first radio having a directional antenna, a second radio, a directivity control unit controlling the directivity of the directional antenna of the first radio, and a directivity information storage unit storing directivity information relating to a directivity, the directivity information being applied to the directional antenna of the first radio in relation to wireless communication between the first radio and the second radio in accordance with a plurality of change patterns indicating a temporal change in a received signal intensity. The directivity control unit acquires a temporal change in a received signal intensity during wireless communication between the first radio and the second radio, selects, from among pieces of the directivity information stored in the directivity information storage unit, directivity information corresponding to the change pattern corresponding to the temporal change in the received signal intensity, applies the selected directivity information, and executes wireless communication between the first radio and the second radio. Accordingly, the influence of fading between radios is suppressed as much as possible and wireless communication between radios is suitably performed.

公开(公告)号：EP3285422A1

公开(公告)日：2018-02-21

申请号：EP15889189.5

申请日：2015-04-15

申请人： Mitsubishi Electric Corporation

发明人： KIHIRA, Kazunari ,  MATSUKI, Makoto ,  WATANABE, Hikaru ,  IURA, Hiroki ,  OTSUKA, Masataka

IPC分类号： H04J99/00 ,  H01Q3/26 ,  H01Q21/06 ,  H01Q21/24 ,  H04B7/10

CPC分类号： H04B7/0617 ,  H01Q3/26 ,  H01Q21/06 ,  H01Q21/24 ,  H04B7/0408 ,  H04B7/0452 ,  H04B7/0697 ,  H04B7/10

摘要： A sub-array number determinator is provided to determine a number of sub-arrays to be allocated to each of user terminals detected by a terminal position detector on a basis of relation between positions of the user terminals and a position of an antenna apparatus. An antenna selector selects sub-arrays for the number determined by the sub-array number determinator from among the sub-arrays and allocates the selected sub-arrays for the determined number to each of the user terminals. This structure is capable of preventing interference among beams for user terminals and providing excellent communication quality to the user terminals even in condition where the user terminals are adjacent to each other.

摘要翻译： 提供子阵列号确定器，用于基于用户终端的位置与天线装置的位置之间的关系，确定要由终端位置检测器检测到的要分配给每个用户终端的子阵列的数量。 天线选择器从子阵列中选择由子阵列号确定器确定的号码的子阵列，并将所选择的子阵列分配给每个用户终端。 即使在用户终端彼此相邻的情况下，该结构也能够防止用户终端之间的波束之间的干扰并且向用户终端提供优良的通信质量。

公开(公告)号：EP3276860A1

公开(公告)日：2018-01-31

申请号：EP16768819.1

申请日：2016-03-23

申请人： NTT DOCOMO, INC.

发明人： OBARA, Tatsunori ,  SUYAMA, Satoshi ,  SHEN, Jiyun ,  OKUMURA, Yukihiko

IPC分类号： H04J99/00 ,  H04B7/04 ,  H04B7/10 ,  H04W16/28 ,  H04W88/02

CPC分类号： H04B7/0617 ,  H04B7/04 ,  H04B7/0695 ,  H04B7/08 ,  H04B7/088 ,  H04B7/10 ,  H04W16/28 ,  H04W88/02

摘要： A number L R of receive beamforming circuits provided in a receive beamformer execute receive beamforming (N R /L R ) times with respect to a received signal vector received by N R reception antennas A R , thereby generating a receive beamforming (BF) output vector having N R receive BF output components. A calculation processor calculates a reception power for each of the N R receive BF output components, selects L R receive BF output components in decreasing order of reception power, and determines a suitable receive BF weight matrix including L R reception orthogonal BF weight vectors corresponding to the selected receive BF output components.

摘要翻译： 接收波束形成器中提供的接收波束形成电路的数目LR相对于由NR个接收天线AR接收的接收信号矢量执行接收波束形成（NR / LR）时间，从而生成具有NR个接收BF输出的接收波束形成（BF）输出矢量 组件。 计算处理器计算每个NR个接收BF输出分量的接收功率，以接收功率的降序选择LR个接收BF输出分量，并且确定包括对应于所选接收的LR个接收正交BF权重向量的合适接收BF权重矩阵 BF输出组件。