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公开(公告)号：US11700053B2
公开(公告)日：2023-07-11
申请号：US17736398
申请日：2022-05-04
CPC分类号： H04B7/15535 , H04B7/15507 , H04B7/15542 , H04B7/15578 , H04B7/2606 , H04W16/26
摘要： A repeater system includes a first repeater device to receive a first beam of radio frequency (RF) signal from a first network node, and a second repeater device to receive a second beam of RF signal from the first network node. The first repeater device controls the second repeater device to provide the first beam and the second beam of RF signal to a second network node. A plurality of signal parameters is selected at the first and second repeater devices for a first beam and a second beam of RF signal, respectively. The first repeater device establishes an additional link with the second repeater device, where based on the additional link, a first data stream carried by the first beam of RF signal is provided to the second network node through the first repeater device as well as the second repeater device.
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公开(公告)号：US20180041234A1
公开(公告)日：2018-02-08
申请号：US15230738
申请日：2016-08-08
申请人： KATHREIN-WERKE KG
CPC分类号： H04B1/0458 , H01Q1/243 , H04B7/15578 , H04L5/14 , H04L43/16 , H04W72/0413 , H04W72/042
摘要： A signal booster device comprises at least one first antenna for communicating with a mobile, at least one second antenna for communicating with a base station, at least one amplifier and at least one power detector. The signal booster device adjusts a gain between the at least two antennas by altering an amplification factor. A normal operation gain is achieved by setting the amplification factor to a first amplification factor. An oscillation is detected by determining at least one first signal power, increasing the operation gain of the signal booster device by setting the amplification factor to a second amplification factor wherein the second amplification factor is higher than the first amplification factor, determining at least one second signal power, correlating the at least one first signal power with the at least one second signal power; and determining whether a status of the signal booster device is oscillation or normal based upon the result of the correlation.
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公开(公告)号：US20180026731A1
公开(公告)日：2018-01-25
申请号：US15540639
申请日：2015-12-04
发明人： Hyunchae KIM
IPC分类号： H04B17/318 , H04B7/155
CPC分类号： H04B17/318 , H04B7/15578
摘要： An interference cancellation repeater according to the inventive concept includes: a first transmission/reception processing unit configured to adjust a gain of a radio frequency (RF) input signal input via a link antenna communicatively coupled to a base station; an interference canceller configured to cancel and output an interference signal from an output signal of the first transmission/reception processing unit; and a gain controller configured to extract a signal with constant magnitude regardless of a change in user traffic from the output signal of the interference canceller, and to adjust the gain of the RF input signal to a predetermined level by controlling the first transmission/reception processing unit based on the extracted signal.
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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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6.发明授权Isolation measurement and self-oscillation prevention in TDD-OFDM repeater for wireless broadband distribution to shadowed areas 有权TDD-OFDM中继器中的隔离测量和自振荡防护，用于无线宽带分配到阴影区域公开(公告)号：US08175028B2
公开(公告)日：2012-05-08
申请号：US12122096
申请日：2008-05-16
申请人： Bojan Subasic , Florin Franovici
发明人： Bojan Subasic , Florin Franovici
IPC分类号： H04B7/212
CPC分类号： H04B7/15578
摘要： A method for determining isolation status of the RF repeater is provided. A modem in the repeater registers with a base transceiver station (BTS). Uplink output levels of a donor RF transceiver are calibrated and stored in the modem. The modem is synchronized to a BTS transmission received at the donor RF transceiver and the synchronization information is provided to a server RF transceiver of the repeater. Isolation detection and measurement can then be performed between donor transmit antenna and receive server antenna of the RF repeater and the automatic gain control parameter of donor RF transceiver and server RF transceiver are adjusted based upon the isolation detection and measurement value. The isolation and detection can be implemented in a co-processor coupled to the donor and server transceivers.
摘要翻译： 提供了一种用于确定RF中继器的隔离状态的方法。 中继器中的调制解调器向基站收发器（BTS）注册。 供体RF收发器的上行链路输出电平被校准并存储在调制解调器中。 调制解调器与在施主RF收发器处接收的BTS传输同步，同步信息被提供给中继器的服务器RF收发器。 然后可以在施主发射天线和RF中继器的接收服务器天线之间执行隔离检测和测量，并且基于隔离检测和测量值来调整施主RF收发器和服务器RF收发器的自动增益控制参数。 隔离和检测可以在耦合到供体和服务器收发器的协处理器中实现。
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公开(公告)号：US20120058719A1
公开(公告)日：2012-03-08
申请号：US13318528
申请日：2009-05-04
申请人： Jiansong Gan , Pål Frenger , Yin Liu , Zhang Zhang
发明人： Jiansong Gan , Pål Frenger , Yin Liu , Zhang Zhang
IPC分类号： H04W52/24
CPC分类号： H04W52/46 , H04B7/15535 , H04B7/15578 , H04B7/2606
摘要： A method of operating a repeater in a communications system is disclosed, wherein a repeater gain to be used for the amplification of a signal is adjusted in dependence on an estimate of an interference by the repeater and by the receiver. The interference at the receiver is feed back to the relay node.
摘要翻译： 公开了一种在通信系统中操作中继器的方法，其中根据中继器和接收机的干扰估计来调整要用于信号放大的中继器增益。 接收机的干扰反馈给中继节点。
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公开(公告)号：US07974573B2
公开(公告)日：2011-07-05
申请号：US11668423
申请日：2007-01-29
申请人： Richard Finch Dean
发明人： Richard Finch Dean
CPC分类号： H04B7/15578 , H04B7/2606
摘要： A repeater is configured so as to detect feedback oscillation conditions by detecting a gain parameter, and responding to the detected gain parameter by reducing the gain when the loop gain approaches unity. When used in a framed shared channel wireless communication systems, feedback oscillation conditions the loop gain of the repeater may be adjusted so as to permit operation of the repeater outside of the oscillation range. The invention is particularly useful when the repeater is used in a framed shared channel wireless communication system.
摘要翻译： 中继器被配置为通过检测增益参数来检测反馈振荡条件，并且当环路增益接近1时通过减小增益来响应于检测到的增益参数。 当在成帧的共享信道无线通信系统中使用时，反馈振荡条件可以调节中继器的环路增益，以允许中继器在振荡范围之外的操作。 当中继器用于成帧共享信道无线通信系统时，本发明特别有用。
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公开(公告)号：US20100285744A1
公开(公告)日：2010-11-11
申请号：US12722733
申请日：2010-03-12
IPC分类号： H04B7/14
CPC分类号： H04B7/15578
摘要： A method for computing a gain control metric used in controlling gain in a wireless repeater operates to store correlation and normalization values associated with the gain control metric for the previous N samples in registers. For each new sample of the gain control input signal, the correlation and normalization values are computed by discarding the multiplication terms of the obsolete sample and adding the multiplication terms of the new sample to the stored correlation and normalization values. In this manner, the complexity of the computation is greatly reduced and the complexity of the computation does not increase with the integration length.
摘要翻译： 用于计算用于控制无线中继器中的增益的增益控制度量的方法用于存储与寄存器中先前N个采样的增益控制度量相关联的相关和归一化值。 对于增益控制输入信号的每个新样本，通过舍弃过时采样的乘法项和将新采样的乘法项加到存储的相关和归一化值来计算相关和归一化值。 以这种方式，大大降低了计算的复杂度，并且计算的复杂度不会随着积分长度而增加。
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公开(公告)号：US20100285740A1
公开(公告)日：2010-11-11
申请号：US12722730
申请日：2010-03-12
IPC分类号： H04B17/02
CPC分类号： H04B7/15578
摘要： A method for monitoring feedback loop stability in a wireless repeater includes measuring a gain control metric in the feedback loop of the repeater periodically for a given time period where the gain control metric is indicative of a loop gain of the feedback loop of the repeater; and monitoring the magnitude of the gain control metric to determine the stability of the feedback loop of the repeater. In operation, a large magnitude of the gain control metric indicates instability in the feedback loop of the repeater.
摘要翻译： 一种用于监测无线中继器中的反馈环路稳定性的方法包括在给定的时间周期周期性地测量中继器的反馈环路中的增益控制度量，其中增益控制度量指示中继器的反馈环路的环路增益; 并监视增益控制度量的大小以确定中继器的反馈回路的稳定性。 在操作中，大幅度的增益控制度量指示中继器的反馈回路中的不稳定性。
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