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公开(公告)号：US08626060B2
公开(公告)日：2014-01-07
申请号：US13086540
申请日：2011-04-14
IPC分类号： H04B7/15
CPC分类号： H04B7/15528 , H04L5/0007 , H04W48/10 , H04W84/047
摘要： In an embodiment, a first repeater configures a beacon signal that identifies the first repeater to one or more other repeaters. The first repeater transmits the configured beacon signal at a given transmission power level to the one or more other repeaters. The transmitted beacon signal is received at least by a second repeater. The second repeater reduces interference associated with other transmissions from the first repeater, such as retransmissions of donor signals, based on the received beacon signal.
摘要翻译： 在一个实施例中，第一中继器将识别第一中继器的信标信号配置到一个或多个其他中继器。 第一中继器以给定的发射功率电平将配置的信标信号发射到一个或多个其它中继器。 所发送的信标信号至少由第二中继器接收。 第二中继器基于接收到的信标信号来减少与来自第一中继器的其他传输相关联的干扰，例如施主信号的重传。
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12.发明授权Channel estimate pruning in presence of large signal dynamics in an interference cancellation repeater 有权在干扰消除中继器中存在大的信号动态的信道估计修剪公开(公告)号：US08611227B2
公开(公告)日：2013-12-17
申请号：US12776867
申请日：2010-05-10
CPC分类号： H04L25/022 , H04B7/15585 , H04L25/0226
摘要： A method for estimating a feedback channel for a wireless repeater detects changes in a power of a remote signal. When a large power swing in the remote signal is detected, the method operates to discard samples or blocks of samples of the pilot and receive signals and a final channel estimate is generated using undiscarded samples of the pilot and receive signals. Alternately, sub channel estimates are generated using individual blocks of the pilot samples and receive samples. When a large power swing in the remote signal is detected, the method operates to discard one or more sub channel estimates and a final channel estimate is generated using undiscarded sub channel estimates.
摘要翻译： 用于估计无线中继器的反馈信道的方法检测远程信号的功率的变化。 当检测到远程信号中的大功率摆动时，该方法操作以丢弃导频和接收信号的样本或块样本，并且使用导频和接收信号的未被滤除的样本来生成最终信道估计。 或者，使用导频样本的各个块并接收采样来生成子信道估计。 当检测到远程信号中的大功率摆动时，该方法操作以丢弃一个或多个子信道估计，并且使用未被清除的子信道估计来生成最终信道估计。
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公开(公告)号：US08548375B2
公开(公告)日：2013-10-01
申请号：US12722694
申请日：2010-03-12
IPC分类号： H04B7/14
CPC分类号： H04B7/15585 , H04B7/15535
摘要： A wireless repeater includes a gain control metric computation block to compute a gain control metric for use in controlling the variable gain of the repeater. The gain control metric is computed by downsampling the gain control input signal to the gain control metric computation block and also downsampling the computed correlation and normalization terms. The gain control metric may be further enhanced by filtering the computed metric values using linear or non-linear filtering.
摘要翻译： 无线中继器包括增益控制度量计算块，用于计算用于控制中继器的可变增益的增益控制度量。 通过将增益控制输入信号下采样到增益控制度量计算块来计算增益控制度量，并且还对所计算的相关和归一化项进行下采样。 可以通过使用线性或非线性滤波来过滤所计算的度量值来进一步增强增益控制度量。
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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。
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公开(公告)号：US08265546B2
公开(公告)日：2012-09-11
申请号：US12722749
申请日：2010-03-12
IPC分类号： H04B3/36
CPC分类号： H04B7/15578
摘要： A method for controlling gain in a wireless repeater includes providing one or more gain control metrics where the gain control metrics is indicative of a loop gain of the repeater; measuring the one or more gain control metrics; and adjusting a variable gain of the repeater using a gain adjustment step size being a function of at least the loop gain of the repeater as measured by the one or more gain control metrics. In another embodiment, the gain control algorithm block is configured to divide the loop gain of the repeater into multiple gain adjustment control zones. The gain adjustment control zones may include a first zone having a loop gain in a stable operating region and a second zone having a loop gain outside the stable operating region.
摘要翻译： 一种用于控制无线中继器中的增益的方法包括提供一个或多个增益控制度量，其中所述增益控制度量指示所述中继器的环路增益; 测量一个或多个增益控制度量; 以及使用由所述一个或多个增益控制度量测量的至少所述中继器的环路增益的函数的增益调整步长调整所述中继器的可变增益。 在另一实施例中，增益控制算法块被配置为将中继器的环路增益划分为多个增益调整控制区。 增益调整控制区域可以包括在稳定操作区域中具有环路增益的第一区域和在稳定操作区域之外具有环路增益的第二区域。
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公开(公告)号：US20100285741A1
公开(公告)日：2010-11-11
申请号：US12722749
申请日：2010-03-12
IPC分类号： H04B17/02
CPC分类号： H04B7/15578
摘要： A method for controlling gain in a wireless repeater includes providing one or more gain control metrics where the gain control metrics is indicative of a loop gain of the repeater; measuring the one or more gain control metrics; and adjusting a variable gain of the repeater using a gain adjustment step size being a function of at least the loop gain of the repeater as measured by the one or more gain control metrics. In another embodiment, the gain control algorithm block is configured to divide the loop gain of the repeater into multiple gain adjustment control zones. The gain adjustment control zones may include a first zone having a loop gain in a stable operating region and a second zone having a loop gain outside the stable operating region.
摘要翻译： 一种用于控制无线中继器中的增益的方法包括提供一个或多个增益控制度量，其中所述增益控制度量指示所述中继器的环路增益; 测量一个或多个增益控制度量; 以及使用由所述一个或多个增益控制度量测量的至少所述中继器的环路增益的函数的增益调整步长调整所述中继器的可变增益。 在另一实施例中，增益控制算法块被配置为将中继器的环路增益划分为多个增益调整控制区。 增益调整控制区域可以包括在稳定操作区域中具有环路增益的第一区域和在稳定操作区域之外具有环路增益的第二区域。
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公开(公告)号：US08452230B2
公开(公告)日：2013-05-28
申请号：US12722722
申请日：2010-03-12
IPC分类号： H04B7/2606
CPC分类号： H04B7/15578
摘要： A method for controlling gain in a wireless repeater includes using two or more gain control metrics indicative of stability of the repeater, at least two of the gain control metrics having different integration lengths, where the integration length is the sum of the coherent integration time and the non coherent integration time, and controlling a variable gain value of the repeater based on one or more of the selected gain control metric(s) where the gain control metric(s) to use is selected based on the stability of the repeater.
摘要翻译： 一种用于控制无线中继器中的增益的方法包括使用指示中继器的稳定性的两个或更多个增益控制度量，至少两个增益控制度量具有不同的积分长度，其中积分长度是相干积分时间和 非相干积分时间，以及基于所选择的增益控制度量中的一个或多个来控制中继器的可变增益值，其中基于中继器的稳定性来选择要使用的增益控制度量。
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公开(公告)号：US20130122802A1
公开(公告)日：2013-05-16
申请号：US13372385
申请日：2012-02-13
CPC分类号： H04B7/15578 , H04B7/15535
摘要： Methods and apparatus for estimating a loop delay value (Ndelay) in an interference cancellation repeater are presented. For example, a method may include setting a repeater gain to an initial gain value, setting a delay parameter to an initial time value, and measuring a loop gain associated with the delay parameter and the repeater gain by detecting a feedback signal with an echo canceller disabled. The method may further include determining whether the measured loop gain is larger than a previously measured loop gain, and if so, designating the delay parameter as the loop delay value (Ndelay); and decrementing the delay parameter when the measured loop gain is not larger than the previously measured loop gain, and when the delay parameter is not at a final time value. The method may iterate until the delay parameter is less than or equal to the final time value.
摘要翻译： 提出了一种用于估计干扰消除中继器中的环路延迟值（Ndelay）的方法和装置。 例如，一种方法可以包括将中继器增益设置为初始增益值，将延迟参数设置为初始时间值，以及通过用回波消除器检测反馈信号来测量与延迟参数和中继器增益相关联的环路增益 残疾人士 该方法还可以包括确定测量的环路增益是否大于先前测量的环路增益，如果是，则将延迟参数指定为环路延迟值（Ndelay）; 并且当测量的环路增益不大于先前测量的环路增益时，以及当延迟参数不在最终时间值时，递减延迟参数。 该方法可以迭代，直到延迟参数小于或等于最终时间值。
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19.发明申请ECHO CANCELLATION REPEATER USING AN INSERTED PILOT WITH GAIN-BASED POWER LEVEL CONTROL SCHEME 失效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
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。
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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。
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