公开(公告)号：US08953725B1

公开(公告)日：2015-02-10

申请号：US14066941

申请日：2013-10-30

申请人： SNU R&DB Foundation

发明人： Jung Woo Lee

IPC分类号： H04B1/10 ,  H04B7/155

CPC分类号： H04B7/15585

摘要： Provided is a MIMO repeater system including a plurality of repeaters. Each of the repeaters includes: an Rx antenna; a receiver configured to convert a signal received through the Rx antenna into a digital signal; an interference cancellation unit configured to cancel interference from an output signal of the receiver; a transmitter configured to convert an output signal of the interference cancellation unit into an analog signal; and a Tx antenna configured to transmit an output signal of the transmitter, and the interference cancellation to unit provided in each of the repeaters receives the output signal of the receiver as an input signal, receives reference signals provided from the plurality of repeaters as a reference signal vector, outputs a prediction signal according to a current filter coefficient vector generated in response to the input signal and the reference signal vector, and cancels the prediction signal from the input signal.

摘要翻译： 提供了包括多个中继器的MIMO中继器系统。 每个中继器包括：Rx天线; 接收器，被配置为将通过所述Rx天线接收的信号转换为数字信号; 干扰消除单元，被配置为消除来自所述接收机的输出信号的干扰; 发送器，被配置为将干扰消除单元的输出信号转换为模拟信号; 以及被配置为发送发射机的输出信号的Tx天线，并且对每个中继器中提供的单元的干扰消除将接收机的输出信号作为输入信号接收，接收从多个中继器提供的参考信号作为参考 信号矢量根据输入信号和参考信号矢量产生的当前滤波器系数矢量输出预测信号，并从输入信号中取消预测信号。

公开(公告)号：US20140348032A1

公开(公告)日：2014-11-27

申请号：US14378093

申请日：2013-02-11

申请人： The Regents of the University of California

发明人： Yingbo Hua ,  Ping Liang

IPC分类号： H04L5/14

CPC分类号： H04L5/1461 ,  H04B1/44 ,  H04B7/15585 ,  H04L5/0023 ,  H04L5/143 ,  H04L25/0328 ,  H04L25/03885

摘要： A node of a full duplex wireless transmission system may include cancellation signal generation elements. The cancellation signal generation elements may extract a waveform from received signals, for example signals transmitted from the node, and use the waveform to generate a prefilter or cancellation signal to apply to further received signals. The cancellation signal may cancel interference in received signals caused by signals transmitted from the node.

摘要翻译： 全双工无线传输系统的节点可以包括消除信号产生元件。 消除信号产生元件可以从接收到的信号（例如从节点发送的信号）中提取波形，并且使用该波形来生成预滤波器或消除信号以应用于另外的接收信号。 消除信号可以消除由从节点发送的信号引起的接收信号中的干扰。

公开(公告)号：US08744340B2

公开(公告)日：2014-06-03

申请号：US13187273

申请日：2011-07-20

申请人： Ravi Palanki ,  Dhananjay Ashok Gore ,  Yongbin Wei

发明人： Ravi Palanki ,  Dhananjay Ashok Gore ,  Yongbin Wei

IPC分类号： H04B3/36

CPC分类号： H04W56/001 ,  H04B7/15585

摘要： Methods and apparatuses are provided that include a mobile station modem (MSM) embedded in a repeater for enhancing repeater functionality. The MSM can determine a timing of a base station based on one or more signals received therefrom. Using the timing, the repeater can align timing to that of the base station, determine cyclic prefix of the received signals, cancel echo from received signals, switch between receiving uplink and downlink signals, transmit PRSs according to the timing, and/or the like.

摘要翻译： 提供了包括嵌入在中继器中用于增强中继器功能的移动台调制解调器（MSM）的方法和装置。 MSM可以基于从其接收的一个或多个信号来确定基站的定时。 使用定时，中继器可以将定时与基站的定时对准，确定接收到的信号的循环前缀，从接收到的信号取消回波，在接收上行链路和下行链路信号之间切换，根据定时传输PRS等 。

公开(公告)号：US20140127989A1

公开(公告)日：2014-05-08

申请号：US14153871

申请日：2014-01-13

申请人： Andrew LLC

发明人： Mano D. Judd ,  Breck W. Lovinggood ,  David T. Tennant ,  Gregory A. Maca ,  William P. Kuiper ,  James L. Alford ,  Michael D. Thomas ,  Jonathon C. Veihl

IPC分类号： H04B7/155

CPC分类号： H04B7/15585 ,  G01S19/25 ,  H01Q1/007 ,  H01Q1/246 ,  H01Q3/2611 ,  H01Q3/2647 ,  H01Q3/46 ,  H01Q21/061 ,  H01Q21/28 ,  H01Q21/29 ,  H01Q23/00 ,  H01Q25/005 ,  H04B7/0825 ,  H04B7/10 ,  H04B7/15507 ,  H04B7/1555 ,  H04B7/15564

摘要： A signal repeating element for repeating a signal includes a housing, at least one transmit antenna element positioned on one side of the housing and at least one receive antenna element positioned on the same one side of the housing. Receiver and transmitter circuitry is coupled with respective ones of the receive and transmit antenna elements. Phase circuitry for affecting the phase of signals from the at least one receive antenna element and at least one transmit antenna element is coupled between the respective receive or transmit antenna element and the receiver or transmitter circuitry.

摘要翻译： 用于重复信号的信号重复元件包括壳体，位于壳体的一侧上的至少一个发射天线元件和位于壳体的相同一侧上的至少一个接收天线元件。 接收机和发射机电路与相应的接收天线元件和发射天线元件耦合。 用于影响来自至少一个接收天线元件和至少一个发射天线元件的信号的相位的相位电路耦合在相应的接收或发射天线元件与接收器或发射器电路之间。

公开(公告)号：US08630581B2

公开(公告)日：2014-01-14

申请号：US13745540

申请日：2013-01-18

申请人： Andrew LLC

发明人： Mano D. Judd ,  Breck W. Lovinggood ,  David T. Tennant ,  Gregory A. Maca ,  William P. Kuiper ,  James L. Alford ,  Michael D. Thomas ,  Jonathan C. Veihl

IPC分类号： H04B7/14

CPC分类号： H04B7/15585 ,  G01S19/25 ,  H01Q1/007 ,  H01Q1/246 ,  H01Q3/2611 ,  H01Q3/2647 ,  H01Q3/46 ,  H01Q21/061 ,  H01Q21/28 ,  H01Q21/29 ,  H01Q23/00 ,  H01Q25/005 ,  H04B7/0825 ,  H04B7/10 ,  H04B7/15507 ,  H04B7/1555 ,  H04B7/15564

摘要： A repeater and associated method of use includes at least one antenna element for communicating in one direction and at least one antenna element for communicating in another direction. A radio frequency uplink path and a radio frequency downlink path are coupled between the antennas. At least one of the radio frequency uplink path or the radio frequency downlink path includes an adaptive cancellation circuit. The adaptive cancellation circuit is configured to generate a cancellation signal without requiring an injected signal. The cancellation signal, when added to a radio frequency signal in the respective uplink and downlink paths, substantially reduces feedback signals present in the radio frequency signal.

摘要翻译： 中继器和相关联的使用方法包括用于在一个方向上通信的至少一个天线元件和用于在另一个方向上通信的至少一个天线元件。 射频上行链路路径和射频下行链路路径耦合在天线之间。 射频上行链路路径或射频下行链路路径中的至少一个包括自适应消除电路。 自适应消除电路被配置为产生消除信号而不需要注入的信号。 当消除信号在相应的上行链路和下行链路路径中添加到射频信号时，基本上减少了存在于射频信号中的反馈信号。

公开(公告)号：US20130273834A1

公开(公告)日：2013-10-17

申请号：US13880533

申请日：2011-09-22

申请人： Lars Sundstrom ,  Leif Wilhelmsson

发明人： Lars Sundstrom ,  Leif Wilhelmsson

IPC分类号： H04B7/155 ,  H04B15/00

CPC分类号： H04B7/15585 ,  H04B7/155 ,  H04B15/00

摘要： A technique for self-interference suppression control for a relay node is provided. The relay node comprises a transmitter and a receiver, and is adapted to transmit and received simultaneously using the same frequency channel or using proximate frequency channels. The relay node further comprises an interference signal estimator having a first input adapted to receive a transmitter signal from the transmitter, a second input adapted to receive adaptation metric and an output adapted to output an estimated interference signal generated by the interference signal estimator based on the transmitter signal and the adaptation metric. A subtractor is coupled to the output of interference signal estimator and configured to subtract the estimated interference signal from a received signal in the receiver so as to actively cancel a signal transmitted from the relay node that leaks back into the receiver of the relay node to suppress self-interference.

摘要翻译： 提供了一种用于中继节点的自干扰抑制控制的技术。 中继节点包括发射机和接收机，并且适于使用相同的频道或使用接近的频率信道同时发射和接收。 所述中继节点还包括干扰信号估计器，所述干扰信号估计器具有适于从所述发射机接收发射机信号的第一输入端，适于接收自适应度量的第二输入端和适于输出由干扰信号估计器产生的估计干扰信号的输出， 发射机信号和适应度量。 减法器耦合到干扰信号估计器的输出，并且被配置为从接收器中的接收信号中减去所估计的干扰信号，从而主动地消除从中继节点发送的信号，该信号泄漏回中继节点的接收机以抑制 自我干扰

公开(公告)号：US08457549B2

公开(公告)日：2013-06-04

申请号：US12039927

申请日：2008-02-29

申请人： Lingfan Weng ,  Ross David Murch

发明人： Lingfan Weng ,  Ross David Murch

IPC分类号： H04B7/14

CPC分类号： H04B7/15585 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/446

摘要： Systems and methodologies for employing a multi-user Multiple Input Multiple Output (MIMO) relay protocol with self-interference cancellation in a wireless communication environment are provided herein. Data streams sent between user device(s) and base station(s) can traverse through a relay. Further, a decode and forward protocol can be employed by the relay rather than merely amplifying and forwarding the data streams. Moreover, each user device can listen to and decode data stream(s) sent by other user device(s) to the relay, and these decoded data stream(s) can be utilized for interference cancellation. Further, the user device(s) and the base station(s) can employ self-interference cancellation upon signals received from the relay. According to another example, an adaptive relay power allocation algorithm, which enhances power efficiency, can be leveraged by the relay for transmitting signals to the user device(s) and the base station(s).

摘要翻译： 本文提供了在无线通信环境中采用具有自干扰消除的多用户多输入多输出（MIMO）中继协议的系统和方法。 在用户设备和基站之间发送的数据流可以穿越中继。 此外，中继器可以采用解码和转发协议，而不仅仅是放大和转发数据流。 此外，每个用户设备可以收听并解码由其他用户设备发送到中继器的数据流，并且这些解码的数据流可用于干扰消除。 此外，用户设备和基站可以对从中继站接收的信号采用自干扰消除。 根据另一示例，增强功率效率的自适应中继功率分配算法可以由继电器利用以向用户设备和基站发送信号。

公开(公告)号：US08442098B2

公开(公告)日：2013-05-14

申请号：US12517613

申请日：2007-11-30

申请人： Sung-Ik Park ,  Jae-Hyun Seo ,  Ho-Min Eum ,  Jae-Young Lee ,  Heung-Mook Kim ,  Yong-Tae Lee ,  Jong-Soo Lim ,  Soo-In Lee

发明人： Sung-Ik Park ,  Jae-Hyun Seo ,  Ho-Min Eum ,  Jae-Young Lee ,  Heung-Mook Kim ,  Yong-Tae Lee ,  Jong-Soo Lim ,  Soo-In Lee

IPC分类号： H04B3/36

CPC分类号： H04L25/20 ,  H04B7/15557 ,  H04B7/15585 ,  H04H20/06 ,  H04H20/22 ,  H04H20/67 ,  H04L25/03006

摘要： Provided are a distributed repeater for repeating output signals identical to input signals through a channel different from that of main transmitter signals but identical to channels of other distributed repeaters, and a distributed repeating method thereof. The distributed repeater includes: a pre-processing unit configured to receive a radio frequency (RF) signal transmitted from an external device and demodulate the RF signal into a baseband signal; an equalizer configured to equalize the baseband signal to correct a distortion occurring on a transmission channel; an identification signal generation and insertion unit configured to generate an identification signal for identification of the distributed repeater and network conditioning, and insert the identification signal in the equalized baseband signal; and a post-processing unit configured to convert the baseband signal from the identification signal generation and insertion unit into an RF signal, and send the RF signal.

摘要翻译： 提供一种分布式中继器，用于通过与主发射机信号不同的信道重复与输入信号相同的输出信号，但与其他分布式中继器的信道相同的输出信号及其分布式重复方法。 分布式中继器包括：预处理单元，被配置为接收从外部设备发送的射频（RF）信号并将RF信号解调为基带信号; 均衡器，其被配置为均衡所述基带信号以校正发生在传输信道上的失真; 识别信号生成和插入单元，被配置为生成用于识别所述分布式中继器的识别信号和网络调理，并将所述识别信号插入所述均衡的基带信号中; 以及后处理单元，被配置为将来自识别信号生成和插入单元的基带信号转换为RF信号，并发送RF信号。

公开(公告)号：US08385935B2

公开(公告)日：2013-02-26

申请号：US12702741

申请日：2010-02-09

申请人： Hong Sup Shin ,  Yong Hoon Lim

发明人： Hong Sup Shin ,  Yong Hoon Lim

IPC分类号： H04W72/12

CPC分类号： H04B7/15585 ,  H04B17/40

摘要： A method for measuring a self-interference (SI) which occurs in a relay and controlling radio resources of a base station based on the measured SI, and a mobile telecommunication system using the same. The mobile telecommunication system includes a relay which calculates intensity of SI; and a base station which performs radio resource management based on the calculated SI intensity. The method for measuring SI includes calculating intensity of SI using a relay; and performing radio resource management at a base station based on the calculated SI intensity.

摘要翻译： 一种用于测量发生在中继站中的自干扰（SI）的方法，并且基于测量的SI来控制基站的无线电资源，以及使用该干扰的移动电信系统。 移动电信系统包括计算SI强度的继电器; 以及基于计算出的SI强度进行无线资源管理的基站。 测量SI的方法包括使用继电器计算SI的强度; 并且基于所计算的SI强度在基站执行无线电资源管理。

公开(公告)号：US20130012190A1

公开(公告)日：2013-01-10

申请号：US13618027

申请日：2012-09-14

申请人： Frank Pergal

发明人： Frank Pergal

IPC分类号： H04B7/15

CPC分类号： H04W16/26 ,  H04B1/10 ,  H04B7/15542 ,  H04B7/15564 ,  H04B7/15585 ,  H04W84/047

摘要： The invention relates to wireless repeater systems and methods. In embodiments, such systems and methods involve receiving a wireless transmission signal; and processing the wireless transmission signal using a digital signal processing facility (DSP); wherein the DSP is adapted to filter at least one sub-band of the wireless transmission signal using a digital bandpass filter.