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1.发明授权公开(公告)号：US08630211B2
公开(公告)日：2014-01-14
申请号：US12827669
申请日：2010-06-30
CPC分类号： H04B1/525 , H04B7/15585
摘要： A wireless repeater includes a receiver circuit implemented as an intermediate frequency (IF) subsampling receiver and a transmitter circuit implemented as a direct conversion (zero-IF) transmitter. The repeater further includes a reference receiver implemented as an IF subsampling receiver to sample a portion of the transmit signal prior to over-the-air transmission for use as the reference signal for channel estimation. Highly 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. The repeater may include an echo canceller to cancel an estimated feedback amount from an input signal based on the channel estimation.
摘要翻译： 无线中继器包括被实现为中频（IF）子采样接收机的接收机电路和被实现为直接转换（零中频））发射机的发射机电路。 中继器还包括实现为IF子采样接收机的参考接收机，用于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来获得高精度的信道估计，因为参考信号考虑了中继器的发射机电路中的失真。 中继器可以包括回声消除器，以基于信道估计从输入信号中消除估计的反馈量。
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公开(公告)号：US08358969B2
公开(公告)日：2013-01-22
申请号：US12609874
申请日：2009-10-30
申请人： Dhananjay Ashok Gore , Gwendolyn Denise Barriac , Steven J. Howard , James Arthur Proctor, Jr. , Kenneth M. Gainey
发明人： Dhananjay Ashok Gore , Gwendolyn Denise Barriac , Steven J. Howard , 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 includes an echo canceller to cancel an estimated feedback amount from an input signal and a delay to delay the input signal. The delay may be selected to decorrelate a remote signal from a signal to be transmitted by the repeater.
摘要翻译： 无线中继器包括回波消除器，以从输入信号中消除估计的反馈量，延迟延迟输入信号。 可以选择该延迟以从要由中继器发送的信号去除相关的远程信号。
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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
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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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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公开(公告)号：US08937874B2
公开(公告)日：2015-01-20
申请号：US13243899
申请日：2011-09-23
CPC分类号： H04B7/15578
摘要： A method of controlling gains within a repeater may include determining a power control set point value which controls a transmit power of a mobile station (MS), and receiving a downlink signal from a base station transceiver system (BTS). The method may further include measuring a power of the received downlink signal, and computing a power level of a signal expected at the uplink of the repeater, wherein the computing is based on the measured downlink power and the power control set point value. Finally, the method may further include adjusting a gain of at least one amplifier based on the computed power level. An apparatus for controlling gains in a repeater may include a baseband processor for performing the above method.
摘要翻译： 控制中继器内的增益的方法可以包括确定控制移动台（MS）的发射功率的功率控制设定点值，以及从基站收发信机（BTS）接收下行链路信号。 该方法还可以包括测量所接收的下行链路信号的功率，以及计算在中继器的上行链路上预期的信号的功率电平，其中所述计算基于所测量的下行链路功率和功率控制设定点值。 最后，该方法还可以包括基于所计算的功率电平来调整至少一个放大器的增益。 用于控制中继器中的增益的装置可以包括用于执行上述方法的基带处理器。
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公开(公告)号：US08861429B2
公开(公告)日：2014-10-14
申请号：US13155276
申请日：2011-06-07
IPC分类号： H04W88/04
CPC分类号： H04B7/15542
摘要： A method in a wireless repeater selects one or more carriers out of all carriers for amplification and transmission. The non-selected carriers may be blocked to mitigate delay spread, uplink noise contribution or other effects on the repeater environment due to multiple repeaters. The carriers may be selected based on signal characteristics, signal usage, and/or other parameters.
摘要翻译： 无线中继器中的方法从所有载波中选择一个或多个载波进行放大和发送。 由于多个中继器，可以阻止未选择的载波以减轻延迟扩展，上行链路噪声贡献或对中继器环境的其他影响。 可以基于信号特性，信号使用和/或其他参数来选择载波。
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公开(公告)号：US08849186B2
公开(公告)日：2014-09-30
申请号：US12776728
申请日：2010-05-10
申请人： Dhananjay Ashok Gore , Sanjiv Nanda , James Arthur Proctor, Jr. , Richard Finch Dean , Gwendolyn Denise Barriac
发明人： Dhananjay Ashok Gore , Sanjiv Nanda , James Arthur Proctor, Jr. , Richard Finch Dean , Gwendolyn Denise Barriac
CPC分类号： H04B7/15571 , H04B1/525 , H04B7/15535 , H04B7/2606 , H04W52/365 , H04W84/047 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/146 , Y02D70/40 , Y02D70/446 , Y02D70/449
摘要： A method for providing repeater communication in a wireless repeater deployed in a multi-repeater environment includes inserting a message signal into the transmit signal of the repeater. The message signal may be a unique or quasi-unique low power spreading sequence uniquely identifying the repeater from other repeaters in the environment. The message signal may also contain information relating to the operational characteristics of the repeater. The message signal may be detected by another repeater or by an end-user wireless communication device.
摘要翻译： 一种在部署在多中继器环境中的无线中继器中提供中继器通信的方法包括将消息信号插入到中继器的发送信号中。 消息信号可以是唯一的或准唯一的低功率扩展序列，其唯一地从环境中的其他中继器识别中继器。 消息信号还可以包含与中继器的操作特性有关的信息。 消息信号可以由另一中继器或最终用户无线通信设备检测。
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8.发明授权Delay control to improve frequency domain channel estimation in an echo cancellation repeater 有权延迟控制，以改善回波消除中继器中的频域信道估计公开(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。
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9.发明授权公开(公告)号：US08774079B2
公开(公告)日：2014-07-08
申请号：US12439018
申请日：2007-10-26
CPC分类号： H04B7/0695 , H04B7/04 , H04B7/0617 , H04B7/155
摘要： A repeater for a wireless communication network includes a first reception antenna for receiving a reception signal on a first path from one of an access point, another repeater or a wireless station device; a second reception antenna for receiving the reception signal on a second path; a reception weighting circuit for applying first and second weights to the reception signal to generate a first weighted reception signal and a second weighted reception signal; a signal combiner for combining the first and second weighted reception signals according to various mathematical combinations to generate a plurality of combined reception signals; and a transmission antenna for transmitting a transmission signal corresponding to one of the combined reception signals to one of the access point, the another repeater or the wireless station device.
摘要翻译： 用于无线通信网络的中继器包括：第一接收天线，用于从接入点，另一中继器或无线站设备之一接收在第一路径上的接收信号; 第二接收天线，用于在第二路径上接收接收信号; 接收加权电路，用于对接收信号应用第一和第二权重以产生第一加权接收信号和第二加权接收信号; 信号组合器，用于根据各种数学组合来组合第一和第二加权接收信号以产生多个组合的接收信号; 以及用于将与组合的接收信号中的一个相对应的发送信号发送到接入点，另一中继器或无线站设备中的一个的发送天线。
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公开(公告)号：US08116749B2
公开(公告)日：2012-02-14
申请号：US12364938
申请日：2009-02-03
IPC分类号： H04W12/02
CPC分类号： G06Q30/0261 , G06F21/60 , G06Q10/0875 , G06Q20/202 , G06Q20/3224 , G06Q20/3278 , G06Q20/385 , G06Q20/4016 , G06Q30/0207 , G06Q30/0222 , G06Q30/0226 , G06Q30/0242 , G06Q30/0282 , G06Q30/0601 , G06Q30/0623 , G06Q50/01 , H04L61/2038 , H04L61/6022 , H04L63/20 , H04L67/18 , H04L67/24 , H04L67/306 , H04L69/18 , H04W4/02 , H04W4/023 , H04W4/029 , H04W4/21 , H04W4/80 , H04W8/005 , H04W12/00 , H04W12/02 , H04W12/04 , H04W88/06
摘要： Techniques for facilitating the exchange of information and transactions between two entities associated with two wireless devices when the devices are in close proximity to each other. A first device uses a first short range wireless capability to detect an identifier transmitted from a second device in proximity, ideally using existing radio capabilities such as Bluetooth (IEEE802.15.1-2002) or Wi-Fi (IEEE802.11). The detected identifier, being associated with the device, is also associated with an entity. Rather than directly exchanging application data flow between the two devices using the short range wireless capability, a second wireless capability allows for one or more of the devices to communicate with a central server via the internet, and perform the exchange of application data flow. By using a central server to draw on stored information and content associated with the entities the server can broker the exchange of information between the entities and the devices.
摘要翻译： 当设备彼此靠近时，用于促进与两个无线设备相关联的两个实体之间的信息交换的技术。 理想地使用诸如蓝牙（IEEE802.15.1-2002）或Wi-Fi（IEEE802.11）之类的现有无线电能力，第一设备使用第一短距离无线能力来检测从邻近的第二设备发送的标识符。 与设备相关联的检测到的标识符也与实体相关联。 而不是使用短程无线能力在两个设备之间直接交换应用数据流，第二无线能力允许一个或多个设备经由因特网与中央服务器进行通信，并执行应用数据流的交换。 通过使用中央服务器来绘制存储的信息和与实体相关联的内容，服务器可以代理实体和设备之间的信息交换。
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