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1. 发明授权

US08380122B2 Signal blanking for improved frequency domain channel estimation 有权
标题翻译：信号消隐用于改进频域信道估计
公开(公告)号：US08380122B2
公开(公告)日：2013-02-19
申请号：US12708318
申请日：2010-02-18
申请人： Steven J. Howard , Tadeusz Jarosinski , Dhananjay Ashok Gore , Gwendolyn Denise Barriac , Michael Mao Wang , Tao Tian
发明人： Steven J. Howard , Tadeusz Jarosinski , Dhananjay Ashok Gore , Gwendolyn Denise Barriac , Michael Mao Wang , Tao Tian
IPC分类号： H04B3/36 , H04B7/14
CPC分类号： H04B7/15535 , H04B7/15585 , H04L27/2607 , H04L27/2613
摘要： A wireless repeater includes a channel estimation block to estimate a feedback channel between the antennas of the repeater using frequency domain channel estimation. The repeater includes a pilot signal blanking circuit to blank out a selected number of samples of the pilot signal to improve the accuracy of the channel estimation. In another embodiment, the repeater replaces T samples of the pilot signal with a cyclic prefix.
摘要翻译：无线中继器包括信道估计块，用于使用频域信道估计来估计中继器的天线之间的反馈信道。中继器包括导频信号消隐电路，用于消除导频信号的选定数目的样本，以提高信道估计的精度。在另一个实施例中，中继器用循环前缀替换导频信号的T个样本。

2. 发明申请

US20130034128A1 ECHO CANCELLATION REPEATER OPERATION IN THE ABSENCE OF AN INPUT SIGNAL 审中-公开
标题翻译： ECHO取消重复操作在输入信号的禁止
公开(公告)号：US20130034128A1
公开(公告)日：2013-02-07
申请号：US13204397
申请日：2011-08-05
申请人： Dhananjay Ashok Gore , Gwendolyn Denise Barriac , Michael Mao Wang , Tao Tian
发明人： Dhananjay Ashok Gore , Gwendolyn Denise Barriac , Michael Mao Wang , Tao Tian
IPC分类号： H04L25/20
CPC分类号： H04B7/15585 , Y02D70/142 , Y02D70/144 , Y02D70/446
摘要： A wireless repeater introduces a low level noise to the signal path of the repeater where the introduced noise is used to facilitate channel estimation. The introduced low power level noise may be added to the receive signal or to the transmit signal. The low power noise signal ensures that the repeater always has a reference signal for performing channel estimation, even when the repeater is not receiving any incoming signal traffic. In one embodiment, a low noise signal is inserted to the transmit circuit of the repeater. In another embodiment, the repeater is configured to increase the noise figure of the receive circuit where the detected noise figure acts as a receive signal.
摘要翻译：无线中继器向中继器的信号路径引入低电平噪声，其中引入的噪声用于促进信道估计。引入的低功率电平噪声可以被添加到接收信号或发送信号。低功率噪声信号确保中继器总是具有用于执行信道估计的参考信号，即使中继器没有接收任何输入信号业务。在一个实施例中，低噪声信号被插入到中继器的发射电路。在另一个实施例中，中继器被配置为增加接收电路的噪声系数，其中检测到的噪声系数作为接收信号。

3. 发明授权

US08638835B2 Wireless repeater implementing multi-parameter gain management 失效
标题翻译：无线中继器实现多参数增益管理
公开(公告)号：US08638835B2
公开(公告)日：2014-01-28
申请号：US13312533
申请日：2011-12-06
申请人： Michael Mao Wang , Gwendolyn Denise Barriac , Dhananjay Ashok Gore , Tao Tian
发明人： Michael Mao Wang , Gwendolyn Denise Barriac , Dhananjay Ashok Gore , Tao Tian
IPC分类号： H04L25/20
CPC分类号： H04B7/15578
摘要： A wireless repeater incorporates a gain management block to implement a multi-parameter gain management algorithm. The gain management algorithm receives gain settings from at least a gain control metric for stability and output signal quality and signal headroom values associated with circuitry of the repeater. The gain management block provides secure and robust boot-up of the repeater as well as oscillation detection and prevention. Furthermore, the gain management block implements repeater stability control, output signal-to-noise level control, uplink and downlink gain balance control and compensation for device constraints.
摘要翻译：无线中继器包含增益管理块以实现多参数增益管理算法。增益管理算法从至少一个增益控制度量接收增益设置，用于稳定性和输出信号质量以及与中继器的电路相关联的信号余量值。增益管理块提供中继器的安全可靠的启动以及振荡检测和防止。此外，增益管理块实现中继器稳定性控制，输出信噪比电平控制，上行链路和下行链路增益平衡控制以及器件约束的补偿。

4. 发明申请

US20130143483A1 MAINTAINING REPEATER STABILITY IN A MULTI-REPEATER SCENARIO 审中-公开
标题翻译：维持多重场景中的重复稳定性
公开(公告)号：US20130143483A1
公开(公告)日：2013-06-06
申请号：US13312642
申请日：2011-12-06
申请人： Dhananjay Ashok Gore , Gwendolyn Denise Barriac , Tao Tian , Michael Mao Wang , James Arthur Proctor, JR. , Kenneth M. Gainey
发明人： Dhananjay Ashok Gore , Gwendolyn Denise Barriac , Tao Tian , Michael Mao Wang , James Arthur Proctor, JR. , Kenneth M. Gainey
IPC分类号： H04B7/14
CPC分类号： H04B7/2606 , H04B7/15585
摘要： A wireless repeater in a multi-repeater environment operates to detect the presence of neighboring repeaters and to maintain repeater stability in the presence of a neighboring repeater. In some embodiments, the repeater transmits a known signal sequence to discover the presence of a neighboring repeater. When a neighboring repeater is detected, the repeater may apply mitigation measures to maintain operational stability at the repeater.
摘要翻译：多中继器环境中的无线中继器操作以检测相邻中继器的存在并且在相邻中继器存在的情况下维持中继器的稳定性。在一些实施例中，中继器发送已知信号序列以发现相邻中继器的存在。当检测到相邻中继器时，中继器可以应用缓解措施来维持中继器的操作稳定性。

5. 发明申请

US20100285738A1 SIGNAL BLANKING FOR IMPROVED FREQUENCY DOMAIN CHANNEL ESTIMATION 有权
标题翻译：用于改进的频域信道估计的信号空白
公开(公告)号：US20100285738A1
公开(公告)日：2010-11-11
申请号：US12708318
申请日：2010-02-18
申请人： Steven J. Howard , Tadeusz Jarosinski , Dhananjay Ashok Gore , Gwendolyn Denise Barriac , Michael Mao Wang , Tao Tian
发明人： Steven J. Howard , Tadeusz Jarosinski , Dhananjay Ashok Gore , Gwendolyn Denise Barriac , Michael Mao Wang , Tao Tian
IPC分类号： H04B17/02
CPC分类号： H04B7/15535 , H04B7/15585 , H04L27/2607 , H04L27/2613
摘要： A wireless repeater includes a channel estimation block to estimate a feedback channel between the antennas of the repeater using frequency domain channel estimation. The repeater includes a pilot signal blanking circuit to blank out a selected number of samples of the pilot signal to improve the accuracy of the channel estimation. In another embodiment, the repeater replaces T samples of the pilot signal with a cyclic prefix.
摘要翻译：无线中继器包括信道估计块，用于使用频域信道估计来估计中继器的天线之间的反馈信道。中继器包括导频信号消隐电路，用于消除导频信号的选定数目的样本，以提高信道估计的精度。在另一个实施例中，中继器用循环前缀替换导频信号的T个样本。

6. 发明申请

US20100285733A1 WIDEBAND ECHO CANCELLATION IN A REPEATER 失效
标题翻译：一个重复的宽带ECHO取消
公开(公告)号：US20100285733A1
公开(公告)日：2010-11-11
申请号：US12609505
申请日：2009-10-30
申请人： Dhananjay Ashok Gore , Gwendolyn Denise Barriac , James Arthur Proctor, JR. , Steven J. Howard , Hakan Inanoglu , Kenneth M. Gainey , Michael Mao Wang , Tao Tian
发明人： Dhananjay Ashok Gore , Gwendolyn Denise Barriac , James Arthur Proctor, JR. , Steven J. Howard , Hakan Inanoglu , Kenneth M. Gainey , Michael Mao Wang , Tao Tian
IPC分类号： H04B7/14
CPC分类号： H04B7/15535 , H04B7/15585 , H04L27/2607 , H04L27/2613
摘要： A wireless repeater having a receiving antenna for receiving an input signal and a transmitting antenna for transmitting an amplified signal includes first and second front-end circuits and a repeater baseband block coupled between the first and second front-end circuits. The repeater baseband block includes a channel estimation block, an echo canceller implementing time domain echo cancellation, a variable gain stage controlled by a gain control block implementing digital gain control, a first variable delay element introducing a first delay before or after the echo canceller, a second variable delay element introducing a second delay to the output signal. The delayed output signal is coupled to the channel estimation block as a reference signal for estimating the feedback channel, to the echo canceller as a reference signal for estimating the feedback signal, and to the gain control block for monitoring the stability of the repeater.
摘要翻译：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射天线的无线中继器包括耦合在第一和第二前端电路之间的第一和第二前端电路和中继器基带块。中继器基带块包括信道估计块，实现时域回声消除的回波消除器，实现数字增益控制的增益控制块控制的可变增益级，在回波消除器之前或之后引入第一延迟的第一可变延迟元件，向输出信号引入第二延迟的第二可变延迟元件。延迟输出信号作为用于估计反馈信道的参考信号，作为用于估计反馈信号的参考信号的回波消除器和用于监视中继器的稳定性的增益控制块耦合到信道估计块。

7. 发明申请

US20120314646A1 ECHO CANCELLATION REPEATER USING AN INSERTED PILOT WITH GAIN-BASED POWER LEVEL CONTROL SCHEME 失效
标题翻译：使用基于增益的功率电平控制方案的插入式引导装置的ECHO取消重复器
公开(公告)号：US20120314646A1
公开(公告)日：2012-12-13
申请号：US13155275
申请日：2011-06-07
申请人： Michael Mao Wang , Gwendolyn Denise Barriac , Dhananjay Ashok Gore , Tao Tian
发明人： Michael Mao Wang , Gwendolyn Denise Barriac , Dhananjay Ashok Gore , Tao Tian
IPC分类号： H04W52/06
CPC分类号： H04B7/15585
摘要： A device for generating a pilot signal for use in a wireless repeater where the pilot signal is added to a transmit signal for transmission includes a pilot power control unit configured to set a power level of the pilot signal as a function of a gain of the repeater and a power level of the transmit signal, where the function comprises a linear or non-linear function. In one embodiment, the operation of the repeater may be divided into gain regions and the inserted pilot power is controlled according to the different gain regions of the repeater. When the repeater gain is low, the pilot power may be set greater than the transmit power to ensure there is sufficient signal to use for channel estimation. When the repeater gain is in steady state, the pilot power may be set to be lower than the transmit power to avoid interference.
摘要翻译：一种用于生成用于无线中继器的导频信号的装置，其中导频信号被添加到用于传输的发射信号中的导频功率控制单元被配置为将导频信号的功率电平设置为中继器的增益的函数以及发射信号的功率电平，其中该功能包括线性或非线性函数。在一个实施例中，中继器的操作可以被划分为增益区域，并且插入的导频功率根据中继器的不同的增益区域被控制。当中继器增益低时，导频功率可以被设置为大于发射功率，以确保有足够的信号用于信道估计。当中继器增益处于稳定状态时，可以将导频功率设置为低于发射功率以避免干扰。

8. 发明授权

US08285201B2 Wideband echo cancellation in a repeater 失效
标题翻译：中继器中的宽带回波消除
公开(公告)号：US08285201B2
公开(公告)日：2012-10-09
申请号：US12609505
申请日：2009-10-30
申请人： Dhananjay Ashok Gore , Gwendolyn Denise Barriac , James Arthur Proctor, Jr. , Steven J. Howard , Hakan Inanoglu , Kenneth M. Gainey , Michael Mao Wang , Tao Tian
发明人： Dhananjay Ashok Gore , Gwendolyn Denise Barriac , James Arthur Proctor, Jr. , Steven J. Howard , Hakan Inanoglu , Kenneth M. Gainey , Michael Mao Wang , Tao Tian
IPC分类号： H04Q7/32
CPC分类号： H04B7/15535 , H04B7/15585 , H04L27/2607 , H04L27/2613
摘要： A wireless repeater having a receiving antenna for receiving an input signal and a transmitting antenna for transmitting an amplified signal includes first and second front-end circuits and a repeater baseband block coupled between the first and second front-end circuits. The repeater baseband block includes a channel estimation block, an echo canceller implementing time domain echo cancellation, a variable gain stage controlled by a gain control block implementing digital gain control, a first variable delay element introducing a first delay before or after the echo canceller, a second variable delay element introducing a second delay to the output signal. The delayed output signal is coupled to the channel estimation block as a reference signal for estimating the feedback channel, to the echo canceller as a reference signal for estimating the feedback signal, and to the gain control block for monitoring the stability of the repeater.
摘要翻译：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射天线的无线中继器包括耦合在第一和第二前端电路之间的第一和第二前端电路和中继器基带块。中继器基带块包括信道估计块，实现时域回声消除的回波消除器，实现数字增益控制的增益控制块控制的可变增益级，在回波消除器之前或之后引入第一延迟的第一可变延迟元件，向输出信号引入第二延迟的第二可变延迟元件。延迟输出信号作为用于估计反馈信道的参考信号，作为用于估计反馈信号的参考信号的回波消除器和用于监视中继器的稳定性的增益控制块耦合到信道估计块。

9. 发明申请

US20100284445A1 INSERTED PILOT CONSTRUCTION FOR AN ECHO CANCELLATION REPEATER 有权
标题翻译：用于ECHO CANCELLATION REPEATER的插入式导轨结构
公开(公告)号：US20100284445A1
公开(公告)日：2010-11-11
申请号：US12609579
申请日：2009-10-30
申请人： Gwendolyn Denise Barriac , Dhananjay Ashok Gore , James Arthur Proctor, JR. , Michael Mao Wang , Tao Tian
发明人： Gwendolyn Denise Barriac , Dhananjay Ashok Gore , James Arthur Proctor, JR. , Michael Mao Wang , Tao Tian
IPC分类号： H04B3/36
CPC分类号： H04B7/15535 , H04B7/15585 , H04L27/2607 , H04L27/2613
摘要： In one embodiment, a device for constructing a pilot signal for use in a wireless repeater where the pilot signal is added to a transmit signal includes one or more pilot generators. Each pilot generator generates a carrier pilot signal associated with a single carrier of the transmit signal and the carrier pilot signals generated by the one or more pilot generators are summed to generate the pilot signal. Each of the one or more pilot generators includes a pilot symbol unit providing multiple data symbols having a predetermined data structure as the carrier pilot signal, a pilot scrambler, a filter, a pilot power determination unit, and a cyclic prefix insertion unit for inserting a cyclic prefix, to the carrier pilot signal. In another embodiment, the pilot symbol unit providing multiple data symbols in frequency domain as the carrier pilot signal.
摘要翻译：在一个实施例中，用于构建在无线中继器中使用的导频信号的装置，其中导频信号被添加到发射信号包括一个或多个导频发生器。每个导频发生器产生与发送信号的单个载波相关联的载波导频信号，并且由一个或多个导频发生器产生的载波导频信号相加以产生导频信号。一个或多个导频发生器中的每一个包括导频符号单元，其提供具有作为载波导频信号的预定数据结构的多个数据符号，导频扰频器，滤波器，导频功率确定单元和循环前缀插入单元，循环前缀，到载波导频信号。在另一个实施例中，导频符号单元在频域中提供多个数据符号作为载波导频信号。

10. 发明授权

US09020009B2 Inserted pilot construction for an echo cancellation repeater 有权
标题翻译：用于回波消除中继器的插入式导频结构
公开(公告)号：US09020009B2
公开(公告)日：2015-04-28
申请号：US12609579
申请日：2009-10-30
申请人： Gwendolyn Denise Barriac , Dhananjay Ashok Gore , James Arthur Proctor, Jr. , Michael Mao Wang , Tao Tian
发明人： Gwendolyn Denise Barriac , Dhananjay Ashok Gore , James Arthur Proctor, Jr. , Michael Mao Wang , Tao Tian
IPC分类号： H04B3/36 , H04B7/155 , H04L27/26
CPC分类号： H04B7/15535 , H04B7/15585 , H04L27/2607 , H04L27/2613
摘要： In one embodiment, a device for constructing a pilot signal for use in a wireless repeater where the pilot signal is added to a transmit signal includes one or more pilot generators. Each pilot generator generates a carrier pilot signal associated with a single carrier of the transmit signal and the carrier pilot signals generated by the one or more pilot generators are summed to generate the pilot signal. Each of the one or more pilot generators includes a pilot symbol unit providing multiple data symbols having a predetermined data structure as the carrier pilot signal, a pilot scrambler, a filter, a pilot power determination unit, and a cyclic prefix insertion unit for inserting a cyclic prefix to the carrier pilot signal. In another embodiment, the pilot symbol unit providing multiple data symbols in frequency domain as the carrier pilot signal.
摘要翻译：在一个实施例中，用于构建在无线中继器中使用的导频信号的装置，其中导频信号被添加到发射信号包括一个或多个导频发生器。每个导频发生器产生与发送信号的单个载波相关联的载波导频信号，并且由一个或多个导频发生器产生的载波导频信号相加以产生导频信号。一个或多个导频发生器中的每一个包括导频符号单元，其提供具有作为载波导频信号的预定数据结构的多个数据符号，导频扰频器，滤波器，导频功率确定单元和循环前缀插入单元，循环前缀到载波导频信号。在另一个实施例中，导频符号单元在频域中提供多个数据符号作为载波导频信号。

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