公开(公告)号：US09407350B2

公开(公告)日：2016-08-02

申请号：US15070133

申请日：2016-03-15

申请人： FUJITSU LIMITED

发明人： Yoshiaki Ohta ,  Yoshihiro Kawasaki ,  Kazuhisa Obuchi ,  Yoshiharu Tajima ,  Yoshinori Tanaka

IPC分类号： H04B7/155 ,  H04W74/08 ,  H04W88/04 ,  H04W74/00 ,  H04W72/04

CPC分类号： H04B7/15507 ,  H04B7/15528 ,  H04B7/15564 ,  H04W72/0446 ,  H04W74/002 ,  H04W74/0833 ,  H04W88/04

摘要： A base station which is able to perform radio communications with a relay station and a mobile station, the base station includes a transmitter configured to transmit radio signals to the relay station in downlink backhaul subframes, and to limit transmission of radio signals to the relay station in subframes other than the downlink backhaul subframes; and a controller configured to allow, when performing a random access procedure to the relay station, the transmitter to transmit a message of the random access procedure even in the subframes other than the downlink backhaul subframes.

摘要翻译： 一种能够与中继站和移动站进行无线通信的基站，所述基站包括：发射机，被配置为在下行回程子帧中向所述中继站发送无线信号，并且限制向中继站发送无线信号 在除了下行回程子帧之外的子帧中; 以及控制器，被配置为当对所述中继站执行随机接入过程时，即使在除了所述下行回程子帧之外的子帧中，所述发射机也发送所述随机接入过程的消息。

公开(公告)号：US09059772B2

公开(公告)日：2015-06-16

申请号：US13642233

申请日：2010-04-22

申请人： Mikael Coldrey ,  Fredrik Athley

发明人： Mikael Coldrey ,  Fredrik Athley

IPC分类号： H04K1/10 ,  H04L27/28 ,  H04B7/155

CPC分类号： H04B7/15564

摘要： The invention provides a method for self-interference suppression in a multi-antenna device that is part of a communication channel between a transmitter and a receiver of a wireless communication system. The communication system uses the multi-antenna device, the multi-antenna device is located between the transmitter and the receiver and uses antennas and a relay unit forwarding signals from the transmitter to the receiver. The communication channel has a transmit channel, defined by a transmit channel matrix between the transmitter and the multi-antenna device, a receive channel defined by a receive channel matrix, between the multi-antenna device and the receiver and a self-interference channel between an output and an input side of the multi-antenna device. The self-interference channel is defined by a self-interference channel matrix wherein the method comprises the steps of: • quipping the multi-antenna device with at least three antennas and; • suppressing the self-interference channel by using at least one filtering matrix arrangement being inserted between the antennas and the relay unit. The invention also provides a node in a wireless communication system comprising the multi-antenna device for self-interference suppression in the multi-antenna device module that is part of a communication channel.

摘要翻译： 本发明提供了作为无线通信系统的发射机和接收机之间的通信信道的一部分的多天线设备中的自干扰抑制的方法。 通信系统使用多天线设备，多天线设备位于发射机和接收机之间，并且使用天线和转发来自发射机到接收机的信号的中继单元。 通信信道具有由发射机和多天线设备之间的发射信道矩阵定义的发射信道，由多天线设备和接收机之间的接收信道矩阵定义的接收信道，以及在多天线设备和接收机之间的自干扰信道 多天线装置的输出端和输入侧。 所述自干扰信道由自干扰信道矩阵定义，其中所述方法包括以下步骤：•使用至少三个天线跳过所述多天线设备;以及 •通过使用至少一个滤波矩阵排列插入在天线和中继单元之间来抑制自干扰信道。 本发明还提供了一种无线通信系统中的节点，其包括作为通信信道的一部分的多天线设备模块中的用于自干扰抑制的多天线设备。

公开(公告)号：US20150079898A1

公开(公告)日：2015-03-19

申请号：US14305751

申请日：2014-06-16

申请人： Frank Pergal

发明人： Frank Pergal

IPC分类号： H04B7/155 ,  H04W16/26

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.

摘要翻译： 本发明涉及无线中继器系统和方法。 在实施例中，这样的系统和方法涉及接收无线传输信号; 以及使用数字信号处理设备（DSP）处理所述无线传输信号; 其中所述DSP适于使用数字带通滤波器来对所述无线传输信号的至少一个子带进行滤波。

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：US08686920B2

公开(公告)日：2014-04-01

申请号：US13115377

申请日：2011-05-25

申请人： Kamal Sarabandi ,  Young Jun Song

发明人： Kamal Sarabandi ,  Young Jun Song

IPC分类号： H01Q21/00 ,  H04B7/14 ,  H04B3/36

CPC分类号： H01Q21/29 ,  H01Q1/525 ,  H01Q9/42 ,  H04B7/15564

摘要： A radio repeater system is provided that utilizes miniaturized antennas and a meta-material channel isolator. The radio repeater is comprised of: a receive antenna configured to receive a signal at a desired channel frequency; a transmit antenna configured to transmit the signal at the channel frequency; an amplifier electrically connected between the receive antenna and the transmit antenna; and an array of resonating circuits disposed spatially between the receive antenna and the transmit antenna. Each resonating circuit is designed to resonant at the channel frequency and thereby suppress propagation of surface waves between the antennas.

摘要翻译： 提供了使用小型化天线和超材料信道隔离器的无线电中继器系统。 无线电中继器包括：接收天线，被配置为以期望的信道频率接收信号; 发送天线，被配置为以所述信道频率发送所述信号; 电连接在接收天线和发射天线之间的放大器; 以及空间上布置在接收天线和发射天线之间的谐振电路阵列。 每个谐振电路设计为在通道频率处谐振，从而抑制天线之间的表面波的传播。

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：US20130142107A1

公开(公告)日：2013-06-06

申请号：US13753176

申请日：2013-01-29

申请人： FUJITSU LIMITED

发明人： Yoshiaki OHTA ,  Yoshihiro KAWASAKI ,  Kazuhisa OBUCHI ,  Yoshiharu TAJIMA ,  Yoshinori TANAKA

IPC分类号： H04W72/04

CPC分类号： H04B7/15507 ,  H04B7/15528 ,  H04B7/15564 ,  H04W72/0446 ,  H04W74/002 ,  H04W74/0833 ,  H04W88/04

摘要： The relay station performs wireless communications with a base station, and a mobile station performs wireless communications with the base station or relay station. The relay station limits reception of a radio signal from the base station at timing at which a radio signal is transmitted to the mobile station. The relay station transmits a message #1 about random access to the base station. The base station transmits a message #2 at timing which is determined based on whether a transmission source of the message #1 is the relay station. The relay station receives the message #2 from the base station.

摘要翻译： 中继站与基站进行无线通信，移动台与基站或中继站进行无线通信。 中继站在无线电信号被发送到移动台的定时限制来自基站的无线电信号的接收。 中继站向基站发送关于随机接入的消息＃1。 基站根据消息＃1的发送源是否是中继站确定的定时发送消息＃2。 中继站从基站接收消息＃2。

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.

公开(公告)号：US20100177807A1

公开(公告)日：2010-07-15

申请号：US12639478

申请日：2009-12-16

申请人： Jianzhong Zhang

发明人： Jianzhong Zhang

IPC分类号： H04B3/36

CPC分类号： H04L27/2655 ,  H04B7/15564 ,  H04B7/2606

摘要： A relay station to relay wireless traffic between a base station and mobile stations. The relay station receives incoming subframes of OFDM symbols and transmits outgoing subframes of OFDM symbols. The relay station comprises a timing offset controller configured to control the transmission of a first outgoing subframe with respect to reception of a first incoming subframe, such that the first outgoing subframe either leads or lags the reception of the first incoming subframe by a first time offset. The first time offset is equal to at least one OFDM symbol.

摘要翻译： 中继站，用于中继基站和移动台之间的无线业务。 中继站接收OFDM符号的进入子帧，并发送OFDM符号的输出子帧。 所述中继站包括定时偏移控制器，所述定时偏移控制器被配置为控制相对于第一输入子帧的接收的第一输出子帧的传输，使得所述第一输出子帧引导或滞后第一输入子帧的接收第一时间偏移 。 第一次偏移等于至少一个OFDM符号。

公开(公告)号：US07729669B2

公开(公告)日：2010-06-01

申请号：US11535376

申请日：2006-09-26

申请人： V. Alan Van Buren ,  Volodymyr Skrypnyk ,  Patrick L. Cook

发明人： V. Alan Van Buren ,  Volodymyr Skrypnyk ,  Patrick L. Cook

IPC分类号： H04Q11/12 ,  H04B7/00 ,  H04B1/00

CPC分类号： H04B7/15535 ,  H04B7/15564

摘要： A system and method for amplifying cellular signals and reducing interference introduced into a cellular network by the network amplifiers. The network amplifier includes an antenna configured to receive a downlink signal from a base station and a variable gain module for amplifying an uplink signal received from a handset. The variable gain module applies an amplification factor to the uplink signal to generate an adjusted uplink signal to be transmitted to the base station via the antenna. A processor is used for determining a value of the amplification factor, where the value of the amplification factor is a function of a level of the downlink signal. The amplification factor may be selected so that interference introduced into a cellular network by the transmission of the adjusted uplink signal is substantially eliminated.

摘要翻译： 一种用于放大蜂窝信号并减少由网络放大器引入蜂窝网络的干扰的系统和方法。 网络放大器包括被配置为从基站接收下行链路信号的天线和用于放大从手机接收的上行链路信号的可变增益模块。 可变增益模块对上行链路信号施加放大因子，以产生经由天线发送到基站的经调整的上行链路信号。 处理器用于确定放大因子的值，其中放大因子的值是下行链路信号的电平的函数。 可以选择放大因子，从而基本上消除了通过调整的上行链路信号的发送引入蜂窝网络的干扰。