公开(公告)号：EP2524482A4

公开(公告)日：2017-08-09

申请号：EP10842794

申请日：2010-01-12

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： HU YANG ,  ASTELY DAVID ,  SONG XINGHUA ,  WANG JIANFENG

IPC: H04L25/02 ,  H04B7/0413 ,  H04B7/06 ,  H04L5/00 ,  H04L5/14

CPC classification number: H04L25/0226 ,  H04B7/0413 ,  H04B7/0678 ,  H04L5/0016 ,  H04L5/0023 ,  H04L5/005 ,  H04L5/0051 ,  H04L5/1469 ,  H04L25/0204 ,  H04L25/0224

Abstract: The prevent invention provides a method for performing channel estimation and detection in a Multiple-Input-Multiple-Output (MIMO) system, including: generating a demodulation reference signal, DM-RS, pattern for an extended cyclic prefix (CP); and estimating and detecting channel performance based on the generated DM-RS signal pattern. The DM-RS pattern supports from rank 1 to rank 8 patterns for 8 layer transmission. A transmitter, a receiver and a system thereof are also provided. The solution of the present invention improves channel estimation accuracy, saves channel estimation implementation and implementation complexity at terminals.

Abstract translation: 本发明提供了一种用于在多输入多输出（MIMO）系统中执行信道估计和检测的方法，包括：产生用于扩展循环前缀（CP）的解调参考信号DM-RS，模式; 以及基于所生成的DM-RS信号模式来估计和检测信道性能。 DM-RS模式支持8层传输的从1级到8级模式。 还提供了发射机，接收机及其系统。 本发明的解决方案改善了信道估计的准确性，节省了终端处的信道估计实现和实现复杂度。

公开(公告)号：EP2193622B1

公开(公告)日：2017-08-02

申请号：EP08749282.3

申请日：2008-04-30

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： LINDBOM, Lars ,  BERGMAN, Johan, Mikael ,  GERSTENBERGER, Dirk ,  KAZMI, Muhammad Ali

IPC: H04L1/20 ,  H04W72/12 ,  H04L1/00 ,  H04L1/18 ,  H04L25/02 ,  H04W36/30 ,  H04W76/04

CPC classification number: H04L1/20 ,  H04L1/0061 ,  H04L1/1829 ,  H04L25/0224 ,  H04W36/30 ,  H04W72/1231 ,  H04W76/28

Abstract: A user equipment, in a cellular telecommunication system having a plurality of downlink physical channels, detects radio link problems using a subset of said physical channels, where said subset is dynamically adjustable depending upon which channels are available at a particular instant.

Abstract translation: 在具有多个下行链路物理信道的蜂窝电信系统中，用户设备使用所述物理信道的子集检测无线电链路问题，其中所述子集根据哪些信道在特定时刻可用而动态调整。

公开(公告)号：EP3193466A1

公开(公告)日：2017-07-19

申请号：EP16189813.5

申请日：2013-05-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： YI, Xiongshu ,  GUAN, Lu

IPC: H04B17/11 ,  H04B7/022 ,  H04L25/02 ,  H04J11/00 ,  H04L5/00 ,  H04W88/08

CPC classification number: H04J11/0053 ,  H04B7/022 ,  H04B17/11 ,  H04L5/0035 ,  H04L5/006 ,  H04L25/0224 ,  H04W88/085

Abstract: According to the present invention, a first self-correction coefficient and a second self-correction coefficient are acquired by performing a self-correction to an RRUO and an RRU1 respectively, then a first compensation coefficient and a second compensation coefficient are acquired through transmitting and receiving correction signals to or from each other via any antenna of the RRUO and any antenna of the RRU1, a first correction coefficient and a second correction coefficient are acquired according to the first self-correction coefficient, the first compensation coefficient, the second self-correction coefficient and the second compensation coefficient, and channel compensation is performed to the RRUO and the RRU1 respectively, thus the joint channel correction among multiple RRUs are realized.

Abstract translation: 根据本发明，通过分别对RRUO和RRU1进行自校正，获取第一自校正系数和第二自校正系数，然后通过发送获取第一补偿系数和第二补偿系数， 根据所述第一自校正系数，所述第一补偿系数，所述第二自校正系数，所述第一补偿系数和所述第二补偿系数，通过所述RRU1的任一天线和所述RRU1的任一天线接收彼此之间的校正信号， 校正系数和第二补偿系数，分别对RRUO和RRU1进行信道补偿，实现多个RRU之间的联合信道校正。

公开(公告)号：EP3190714A1

公开(公告)日：2017-07-12

申请号：EP14902686.6

申请日：2014-09-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： ZHANG, Xiaolong ,  LV, Jie

IPC: H04B3/48

CPC classification number: H04B3/48 ,  H04B3/06 ,  H04H20/12 ,  H04L25/0212 ,  H04L25/022 ,  H04L25/0224 ,  H04N7/17309 ,  H04N21/6118 ,  H04N21/6168

Abstract: Embodiments of the present invention provide a channel transmission characteristic obtaining method and apparatus. The method includes: obtaining transmission characteristic curves of at least two channels in a cable modem in a channel scanning manner, where the at least two channels form one contiguous frequency band, and frequencies corresponding to the transmission characteristic curves of the at least two channels have frequency values on a same order of magnitude, and have amplitude values on a same order of magnitude; translating the transmission characteristic curves of the channels in an amplitude direction, to make amplitudes corresponding to same frequencies on all transmission characteristic curves overlapped, so as to form one continuous curve; and using the continuous curve as a transmission characteristic curve of the contiguous frequency band. According to the channel transmission characteristic obtaining method and apparatus provided in the present invention, a channel transmission characteristic can be obtained when an HFC network is in a working state, and accuracy of an analysis result can be improved.

Abstract translation: 本发明的实施例提供一种信道传输特性获取方法和设备。 该方法包括：以信道扫描的方式获得电缆调制解调器中至少两个信道的传输特性曲线，其中至少两个信道形成一个连续频带，并且与至少两个信道的传输特性曲线对应的频率具有 频率值在相同的数量级上，并且具有相同数量级的幅度值; 将所述通道的传输特性曲线在幅度方向上进行平移，使所有传输特性曲线上相同频率对应的幅度重叠，形成一条连续曲线; 并使用连续曲线作为连续频带的传输特性曲线。 根据本发明提供的信道传输特性获取方法和装置，可以在HFC网络处于工作状态时获得信道传输特性，并且可以提高分析结果的准确性。

公开(公告)号：EP3076603A4

公开(公告)日：2017-06-21

申请号：EP14864614

申请日：2014-09-29

Applicant: KT CORP

Inventor： PARK NOWOOK ,  PARK HYUNG-JIN ,  JEONG IN-TAEK

IPC: H04L12/28 ,  H04B3/30 ,  H04B3/32 ,  H04B3/46 ,  H04B3/54 ,  H04J11/00 ,  H04L5/00 ,  H04L7/00 ,  H04L25/02 ,  H04W28/16

CPC classification number: H04B3/32 ,  H04B3/46 ,  H04B3/54 ,  H04B15/00 ,  H04J11/0056 ,  H04L5/0048 ,  H04L7/0079 ,  H04L7/0091 ,  H04L25/0204 ,  H04L25/0224

Abstract: Provided is a method for mitigating, by an interference mitigation apparatus, interference on a home network transmission line. The method includes pairing domain masters with relay terminals by a signal having a unique frequency, grouping the domain masters, performing Tx/Rx synchronization between the domain masters and the relay terminals, and controlling the domain masters and the relay terminals to transmit/receive data according to the Tx/Rx synchronization. The domain masters of the same groups may be controlled not to simultaneously transmit/receive data.

Abstract translation: 提供了一种用于由干扰减轻装置减轻对家庭网络传输线路的干扰的方法。 该方法包括通过具有唯一频率的信号将域主设备与中继终端配对，对域主设备进行分组，在域主设备和中继终端之间执行Tx / Rx同步，并控制域主设备和中继终端发送/接收数据 根据Tx / Rx同步。 可以控制相同组的域主设备不同时发送/接收数据。

公开(公告)号：EP3179682A1

公开(公告)日：2017-06-14

申请号：EP14899441.1

申请日：2014-11-27

Applicant: ZTE Corporation

Inventor： WEI, Jidong ,  LI, Bin

IPC: H04L27/26

CPC classification number: H04L25/0224 ,  H04L27/26 ,  H04L27/2657 ,  H04L27/2671 ,  H04L27/2675 ,  H04L27/2682 ,  H04L27/2686 ,  H04L27/2695

Abstract: The disclosure provides a method, device and storage medium for frequency offset estimation, and the method includes: performing initial channel estimation with a received Sounding Reference Signal or Preamble code to obtain a first frequency offset estimation value of a current sub-frame; determining a frequency offset range in which the first frequency offset estimation value is located, and obtaining an initial frequency offset value corresponding to the first frequency offset estimation value according to a preset correspondence between the frequency offset range and the initial frequency offset value; determining a phase difference of adjacent pilot positions based on a received pilot frequency sequence included in the current sub-frame , and obtaining, within the range defined by the initial frequency offset value corresponding to the first frequency offset estimation value, a dual pilot frequency offset estimation value according to the phase difference; and obtaining a frequency offset estimation value of the current sub-frame according to the initial frequency offset value corresponding to the first frequency offset estimation value and the dual pilot frequency offset estimation value.

Abstract translation: 本发明提供了一种用于频偏估计的方法，设备和存储介质，所述方法包括：利用接收到的探测参考信号或前导码进行初始信道估计，得到当前子帧的第一频偏估计值; 根据预设的频偏范围与初始频偏值的对应关系，确定第一频偏估计值所在的频偏范围，并获取第一频偏估计值对应的初始频偏值; 根据当前子帧中包含的接收导频序列，确定相邻导频位置的相位差，并在由第一频偏估计值对应的初始频偏值确定的范围内获得双导频频偏 根据相位差估计值; 根据所述第一频偏估计值和所述双导频频偏估计值对应的初始频偏值，获取所述当前子帧的频偏估计值。

公开(公告)号：EP3139556A4

公开(公告)日：2017-06-14

申请号：EP14895776

申请日：2014-06-26

Applicant: HUAWEI TECH CO LTD

Inventor： LIU SHENG

IPC: H04L25/03 ,  H04B1/10 ,  H04B1/56 ,  H04L5/14 ,  H04L25/02

CPC classification number: H04L25/03006 ,  H04B1/10 ,  H04B1/56 ,  H04L5/0048 ,  H04L5/1461 ,  H04L25/0212 ,  H04L25/0224 ,  H04W4/008

Abstract: Embodiments of the present invention relate to the field of communications technologies, and provide an interference cancellation apparatus and method, which can cancel a near-field reflected self-interference component. The method includes: obtaining a radio frequency reference signal generated according to a transmit signal; obtaining a radio frequency receive signal by using a main receive antenna; performing interference cancellation processing on the radio frequency receive signal according to the radio frequency reference signal to generate a first processed signal; performing near-field reflected self-interference channel estimation according to a digital baseband reference signal corresponding to the radio frequency reference signal and according to a first digital signal obtained by sampling the first processed signal to obtain a near-field reflected self-interference component parameter; performing near-field reflected self-interference signal reconstruction according to the near-field reflected self-interference component parameter and the radio frequency reference signal to obtain a near-field reflected self-interference signal; and performing interference cancellation processing on the first processed signal according to the near-field reflected self-interference signal to obtain a second processed signal. The present invention is used for interference cancellation.

Abstract translation: 本发明实施例涉及通信技术领域，提供一种可消除近场反射自干扰分量的干扰消除设备和方法。 该方法包括：获得根据发射信号生成的射频参考信号; 通过使用主接收天线获得射频接收信号; 根据射频参考信号对射频接收信号进行干扰消除处理，生成第一处理后的信号; 根据所述射频参考信号对应的数字基带参考信号，根据对所述第一处理后的信号进行采样得到的第一数字信号进行近场反射自干扰信道估计，得到近场反射自干扰分量参数 ; 根据近场反射自干扰分量参数和射频参考信号进行近场反射自干扰信号重构，得到近场反射自干扰信号; 并根据所述近场反射自干扰信号对所述第一处理信号进行干扰消除处理，得到第二处理信号。 本发明用于干扰消除。

公开(公告)号：EP2635088B1

公开(公告)日：2017-04-12

申请号：EP12306010.5

申请日：2012-08-20

Applicant: ALCATEL LUCENT

Inventor： Boccardi, Federico ,  Doetsch, Uwe

IPC: H04L5/00 ,  H04L25/02 ,  H04W72/04 ,  H04B7/02 ,  H04W88/08

CPC classification number: H04L5/0048 ,  H04B7/024 ,  H04L25/0224 ,  H04W72/044 ,  H04W88/085

公开(公告)号：EP3145222A1

公开(公告)日：2017-03-22

申请号：EP15792346.7

申请日：2015-05-04

Applicant: Sony Corporation

Inventor： XU, Xiaodong ,  LIN, Weiyang ,  YANG, Chengcheng ,  CHEN, Nannan ,  SONG, Xiaojia

IPC: H04W4/00 ,  H04W24/10

CPC classification number: H04W72/1215 ,  H04B7/0632 ,  H04L5/00 ,  H04L5/005 ,  H04L5/0058 ,  H04L5/006 ,  H04L5/0064 ,  H04L5/0069 ,  H04L25/0224 ,  H04L47/29 ,  H04W4/00 ,  H04W4/027 ,  H04W4/70 ,  H04W8/005 ,  H04W48/16 ,  H04W64/00 ,  H04W64/006 ,  H04W72/0486 ,  H04W72/085 ,  H04W76/14 ,  H04W76/27 ,  H04W84/042 ,  H04W88/06 ,  H04W88/08

Abstract: The present disclosure relates to an electronic device and a wireless communication method in a wireless communication system. The electronic device according to the present disclosure comprises: a setting unit which is configured to set configuration information for D2D communication measurement for a first user equipment (UE) served by the electronic device, wherein the configuration information contains reference signal information about a second UE of a candidate object with which the first UE conducts D2D communication; a first sending unit which is configured to send the configuration information, so as to trigger communication link quality measurement between the first UE and the second UE; a receiving unit which is configured to receive a measurement report from the first UE; a conversion determination unit which is configured to determine whether to convert the communication between the first UE and a current communication object to a communication with the second UE based on the measurement report; and a second sending unit which is configured to send conversion information when the conversion determination unit determines to convert the communication between the first UE and the current communication object to the communication with the second UE, so as to notify the first UE and the UE to conduct communication.

Abstract translation: 本公开涉及无线通信系统中的电子设备和无线通信方法。 根据本公开的电子设备包括：设置单元，被配置为为由电子设备服务的第一用户设备（UE）设置用于D2D通信测量的配置信息，其中配置信息包含关于第二UE的参考信号信息 第一UE进行D2D通信的候选对象; 第一发送单元，被配置为发送配置信息，以触发第一UE与第二UE之间的通信链路质量测量; 接收单元，被配置为从所述第一UE接收测量报告; 转换确定单元，被配置为基于所述测量报告来确定是否将所述第一UE与当前通信对象之间的通信转换为与所述第二UE的通信; 以及第二发送单元，被配置为当转换确定单元确定将第一UE与当前通信对象之间的通信转换为与第二UE的通信时发送转换信息，以便将第一UE和UE通知给 进行沟通。

公开(公告)号：EP3142262A1

公开(公告)日：2017-03-15

申请号：EP16187990.3

申请日：2016-09-09

Applicant: LG ELECTRONICS INC.

Inventor： LIM, Dongguk ,  CHUN, Jinyoung ,  CHOI, Jinsoo ,  CHO, Hangyu ,  KIM, Jinmin ,  PARK, Eunsung

IPC: H04B7/06

CPC classification number: H04B7/0617 ,  H04B7/0619 ,  H04B7/066 ,  H04L25/0224 ,  H04W84/12

Abstract: When an AP (access point) performs sounding to transmit a frame to one or more STAs using a beamforming scheme in a wireless LAN (WLAN) system, the AP receives a beamforming feedback, which is generated based on measurement of a specific signal transmitted by the AP in a manner that the one or more STAs group a prescribed number of tones according to a tone grouping element (Ng). In this case, the Ng is configured by a multiple of 4.

Abstract translation: 当AP（接入点）在无线局域网（WLAN）系统中使用波束成形方案执行探测以发送帧到一个或多个STA时，AP接收波束形成反馈，该反馈是基于由 AP以一个或多个STA根据音调分组元素（Ng）组合规定数量的音调的方式。 在这种情况下，Ng由4的倍数配置。