公开(公告)号：US09130641B2

公开(公告)日：2015-09-08

申请号：US11369231

申请日：2006-03-02

申请人： Behzad Mohebbi

发明人： Behzad Mohebbi

IPC分类号： H04B7/15 ,  H04B7/155

CPC分类号： H04B7/15542 ,  H04B7/15535 ,  H04B7/15564 ,  H04B7/15585 ,  H04B7/2606

摘要： A repeater mediates traffic between a network transceiver and a user transceiver in a wireless communication system. The repeater comprises a network unit that maintains a network link with the network transceiver, a user unit that maintains a user link with the user transceiver, a two-way communication pathway between the network unit and the user unit; that facilitate the communication of signals between the network transceiver and the user transceiver in autonomous repeater hops between the network transceiver and the network unit, between the user transceiver and the user unit, and between the network unit and the user unit, and a gain controller that compensates for propagation losses between the network unit and user unit alone.

摘要翻译： 中继器在无线通信系统中调节网络收发器和用户收发器之间的业务。 中继器包括网络单元，其维护与网络收发器的网络链路，维护与用户收发器的用户链路的用户单元，网络单元和用户单元之间的双向通信路径; 有助于在网络收发器和网络单元之间，用户收发器和用户单元之间以及网络单元和用户单元之间的自主中继跳跃中的网络收发器和用户收发器之间的信号通信，以及增益控制器 其仅补偿网络单元和用户单元之间的传播损耗。

公开(公告)号：US20140286265A1

公开(公告)日：2014-09-25

申请号：US14296182

申请日：2014-06-04

申请人： LG ELECTRONICS INC

发明人： Kyu Jin PARK ,  Han Gyu CHO ,  Yeong Hyeon KWON ,  Jae Hoon CHUNG

IPC分类号： H04J1/14 ,  H04W72/04

CPC分类号： H04B7/15528 ,  H04B7/155 ,  H04B7/15585 ,  H04B7/2606 ,  H04J1/14 ,  H04L27/2601 ,  H04W28/06 ,  H04W72/042 ,  H04W84/047

摘要： The invention relates to a method of transmitting an uplink signal at a communication apparatus in a wireless communication system. The wireless communication system can receive pattern information of downlink subframes for a base station (BS)-to-the communication apparatus transmission as a bitmap; receive resource block (RB) information associated with a control channel for the BS-to-the communication apparatus transmission; receive the control channel from a fourth orthogonal frequency division multiplexing (OFDM) symbol of the downlink subframe n corresponding to a downlink subframe index n based on the RB information and the pattern information, the downlink subframe n comprising at least one downlink subframe other than downlink subframe 0, downlink subframe 4, downlink subframe 5 and downlink subframe 9; receive a data channel in the downlink subframe n; and transmit feedback information associated with the data channel to the BS via an uplink subframe for the communication apparatus-to-the BS transmission.

摘要翻译： 本发明涉及一种在无线通信系统中的通信装置发送上行链路信号的方法。 无线通信系统可以将基站（BS）的下行链路子帧的模式信息作为位图接收到通信装置的发送; 接收与用于BS到通信设备传输的控制信道相关联的资源块（RB）信息; 基于RB信息和模式信息，从对应于下行链路子帧索引n的下行链路子帧n的第四正交频分复用（OFDM）符号接收控制信道，下行链路子帧n包括除下行链路之外的至少一个下行链路子帧 子帧0，下行链路子帧4，下行链路子帧5和下行链路子帧9; 在下行链路子帧n中接收数据信道; 并且经由用于所述通信设备到BS传输的上行链路子帧将与所述数据信道相关联的反馈信息发送到所述BS。

公开(公告)号：US20140226538A1

公开(公告)日：2014-08-14

申请号：US13766099

申请日：2013-02-13

申请人： QUALCOMM INCORPORATED

发明人： Hua Wang ,  Achaleshwar Sahai ,  Zrinka Puljiz ,  Shailesh Patil ,  Pablo Alejandro Anigstein ,  Junyi Li

IPC分类号： H04B1/10

CPC分类号： H04B1/1027 ,  H04B1/10 ,  H04B1/7107 ,  H04B7/0413 ,  H04B7/0617 ,  H04B7/15585 ,  H04B17/16 ,  H04J11/0036 ,  H04L25/0204 ,  H04L25/022 ,  H04L25/0228 ,  H04L25/03159 ,  H04L25/03891 ,  H04L2025/03426 ,  H04W28/04

摘要： A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus receives an intended signal from a first wireless device operating in a full-duplex mode, receives an interfering signal from a second wireless device communicating with the first wireless device, and reduces an interference of the received intended signal caused by the interfering signal by projecting a matrix of the received intended signal onto a space associated with the interfering signal.

摘要翻译： 提供了一种用于无线通信的方法，装置和计算机程序产品。 该设备从全双工模式的第一无线设备接收预期信号，从与第一无线设备通信的第二无线设备接收干扰信号，并减少由干扰信号引起的接收到的预期信号的干扰 将接收到的预期信号的矩阵投影到与干扰信号相关联的空间上。

公开(公告)号：US08599906B2

公开(公告)日：2013-12-03

申请号：US12041603

申请日：2008-03-03

申请人： James A. Proctor, Jr. ,  Kenneth M. Gainey ,  James C. Otto

发明人： James A. Proctor, Jr. ,  Kenneth M. Gainey ,  James C. Otto

IPC分类号： H04B3/36

CPC分类号： H04B7/15585 ,  H04B7/15542 ,  H04B7/15571

摘要： A repeater environment is provided to operatively deploy a feedback cancellation loop that performs closed loop calculations for weights used by a feedback equalizer to improve signal integrity and amplification. In an illustrative implementation, an exemplary repeater environment comprises a transmitter, a receiver, an equalized feedback cancellation loop circuitry operative to perform one or more closed form calculations for equalizer weights. In the illustrative implementation, the feedback cancellation loop can comprise a calculation module operative to perform one or more closed form weight calculations using linear algebraic techniques as part of feedback signal cancel operations for use by the N tap feedback equalizer canceller.

摘要翻译： 提供中继器环境以可操作地部署反馈消除环路，其对由反馈均衡器使用的权重执行闭环计算，以改善信号完整性和放大。 在说明性实现中，示例性中继器环境包括发射机，接收机，均衡反馈消除循环电路，其可操作以对均衡器权重执行一个或多个闭合形式计算。 在说明性实现中，反馈消除循环可以包括计算模块，其可操作以使用线性代数技术执行一个或多个闭合形式权重计算，作为由N抽头反馈均衡器消除器使用的反馈信号取消操作的一部分。

公开(公告)号：US20130279399A1

公开(公告)日：2013-10-24

申请号：US13880529

申请日：2011-09-22

申请人： Leif Wilhelmsson ,  Lars Sundström

发明人： Leif Wilhelmsson ,  Lars Sundström

IPC分类号： H04B7/155

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

摘要： A technique for controlling suppression of self-interference in a relay node configured to transmit and receive simultaneously using the same frequency channel or using proximate frequency channels is provided. A method implementation of this technique comprises the steps of actively cancelling a signal transmitted from the relay node that leaks back into a receiver of the relay node to suppress self-interference, determining whether an increase of an amount of self-interference suppression is needed or whether self-interference suppression can be decreased, and increasing or decreasing, depending on the result of the determination, at least one of the transmit power of the signal transmitted from the relay node and the receive power of the relay node.

摘要翻译： 提供了一种用于控制被配置为使用相同频率信道或使用接近频率信道同时发送和接收的中继节点中的自干扰抑制的技术。 该技术的方法实现包括以下步骤：主动地消除从中继节点发送的信号，该信号泄漏到中继节点的接收机中以抑制自干扰，确定是否需要增加自干扰抑制量， 取决于确定结果，能够减少自干扰抑制，以及根据确定结果增加或减少从中继节点发送的信号的发射功率和中继节点的接收功率中的至少一个。

公开(公告)号：US08553610B2

公开(公告)日：2013-10-08

申请号：US13106656

申请日：2011-05-12

申请人： Kenneth M. Gainey ,  James A. Proctor, Jr.

发明人： Kenneth M. Gainey ,  James A. Proctor, Jr.

IPC分类号： H04J1/12 ,  H04B7/185 ,  H04B1/10

CPC分类号： H04B7/15585

摘要： A wireless repeater employing echo cancellation uses a non-linear element in digital baseband to compress the digital transmit signal waveform, thereby allowing distortions in the transmitter circuit as well as interference to be cancelled. In one embodiment, the repeater applies non-linear baseband compression to the digital transmit signal in the digital domain to reduce the peak-to-average amplitude of the digital transmit signal prior to digital-to-analog conversion and prior to over-the-air transmission and prior to sampling of the digital transmit signal for use as the reference signal for echo cancellation. The intentionally introduced non-linear distortion in the transmit signal improves echo cancellation and stability of the repeater. In one embodiment, the non-linear compression is applied only when the digital transmit signal is at or exceed a given power level or a given gain level.

摘要翻译： 使用回波消除的无线中继器使用数字基带中的非线性元件来压缩数字发射信号波形，从而允许发射机电路中的失真以及干扰被取消。 在一个实施例中，中继器对数字域中的数字发射信号应用非线性基带压缩，以减小在数模转换之前和之前的数字发射信号的峰均幅度， 空气传输之前和数字发射信号采样之前用作回波消除的参考信号。 有意引入发送信号中的非线性失真提高了中继器的回波消除和稳定性。 在一个实施例中，仅当数字发射信号处于或超过给定功率电平或给定增益电平时才施加非线性压缩。

公开(公告)号：US08542623B2

公开(公告)日：2013-09-24

申请号：US12686608

申请日：2010-01-13

申请人： James A. Proctor, Jr. ,  Kenneth M. Gainey ,  Dhananjay Ashok Gore ,  Gwendolyn Denise Barriac

发明人： James A. Proctor, Jr. ,  Kenneth M. Gainey ,  Dhananjay Ashok Gore ,  Gwendolyn Denise Barriac

IPC分类号： H04J1/10

CPC分类号： H04B7/15585 ,  H04B1/525

摘要： A wireless repeater includes an echo canceller to cancel an estimated feedback amount from an input signal and a reference receiver to sample a portion of the transmit signal prior to over-the-air transmission for use as the reference signal for channel estimation. More accurate channel estimation is obtained by using the reference signal from the reference receiver as the reference signal accounts for distortions in the transmitter circuit of the repeater.

摘要翻译： 无线中继器包括回波消除器，以从输入信号和参考接收器消除估计的反馈量，以在空中传输之前对发射信号的一部分进行采样，以用作信道估计的参考信号。 通过使用来自参考接收机的参考信号获得更精确的信道估计，因为参考信号考虑了中继器的发射机电路中的失真。

公开(公告)号：US08503926B2

公开(公告)日：2013-08-06

申请号：US12940697

申请日：2010-11-05

申请人： Kenneth M. Gainey ,  James Arthur Proctor, Jr.

发明人： Kenneth M. Gainey ,  James Arthur Proctor, Jr.

IPC分类号： H04B3/36

CPC分类号： H04B7/15585 ,  H04B3/23 ,  H04L5/0007 ,  H04L25/0202 ,  H04L27/3863

摘要： An interference cancellation repeater employing zero-IF or direct conversion radio architecture implements IQ imbalance compensation using a metric and an adaptive algorithm. The metric is based on the image rejection ratio of the repeater and is indicative of the level of spectral image caused by the repeater's receiver or transmitter IQ imbalance.

摘要翻译： 采用零中频或直接转换无线电架构的干扰消除中继器使用度量和自适应算法实现IQ不平衡补偿。 该度量基于中继器的图像抑制比，并且指示由中继器的接收机或发射机IQ不平衡引起的频谱图像的电平。

公开(公告)号：US08472872B2

公开(公告)日：2013-06-25

申请号：US12674418

申请日：2008-08-20

申请人： Sung Ik Park ,  Heung Mook Kim ,  Jong-Soo Lim ,  Soo In Lee

发明人： Sung Ik Park ,  Heung Mook Kim ,  Jong-Soo Lim ,  Soo In Lee

IPC分类号： H04B7/14

CPC分类号： H04B7/15585 ,  H04B1/525 ,  H04L25/03019

摘要： An on-channel repeating apparatus and method is provided. The method includes subtracting a replica of a feedback signal from a signal received from a main transmitter or another repeating apparatus; demodulating and equalizing the signal to remove noise, a multipath signal, and the remaining feedback signal from the signal; inserting identification signal having good correlation properties into the signal; modulating the signal; and transmitting the modulated signal.

摘要翻译： 提供了一种通道内重复装置和方法。 该方法包括从从主发射机或其他中继装置接收的信号中减去反馈信号的副本; 解调和均衡信号以去除噪声，多路径信号和来自信号的剩余反馈信号; 将具有良好相关性的识别信号插入信号中; 调制信号; 并发送调制信号。

公开(公告)号：US08385818B2

公开(公告)日：2013-02-26

申请号：US12609796

申请日：2009-10-30

申请人： Dhananjay Ashok Gore ,  Gwendolyn Denise Barriac ,  James Arthur Proctor, Jr. ,  Kenneth M. Gainey

发明人： Dhananjay Ashok Gore ,  Gwendolyn Denise Barriac ,  James Arthur Proctor, Jr. ,  Kenneth M. Gainey

IPC分类号： H04Q7/32

CPC分类号： H04B7/15535 ,  H04B7/15585 ,  H04L27/2607 ,  H04L27/2613

摘要： A wireless repeater has a receiving antenna for receiving an input signal and a transmitting antenna for transmitting an amplified signal where the input signal is a sum of a remote signal and a feedback signal. The repeater includes an echo canceller receiving the input signal and generating an echo cancelled signal by estimating a feedback channel between the transmitting antenna and the receiving antenna and cancelling a feedback signal estimate from the input signal, an amplifier for amplifying the echo cancelled signal and providing the amplified signal to the transmitting antenna, and a variable delay element receiving the echo cancelled signal and introducing a first delay to the echo cancelled signal. The first delay is selected to optimize the estimation of the feedback channel, thereby optimizing the cancellation of the feedback signal. The delayed echo cancelled signal is coupled to the echo canceller as a reference signal for estimating the feedback channel.

摘要翻译： 无线中继器具有用于接收输入信号的接收天线和用于发送放大信号的发送天线，其中输入信号是远程信号和反馈信号之和。 中继器包括回波消除器，其接收输入信号并通过估计发射天线和接收天线之间的反馈信道并从输入信号中消除反馈信号估计来产生回波消除信号，放大器用于放大回波消除信号并提供 向发射天线的放大信号，以及接收回声消除信号的可变延迟元件，并向回波消除信号引入第一延迟。 选择第一延迟以优化反馈信道的估计，从而优化反馈信号的消除。 延迟回波消除信号耦合到回波消除器作为用于估计反馈信道的参考信号。