Method and apparatus for mitigating oscillation between repeaters
    1.
    发明授权
    Method and apparatus for mitigating oscillation between repeaters 有权
    用于减轻中继器之间振荡的方法和装置

    公开(公告)号:US08559379B2

    公开(公告)日:2013-10-15

    申请号:US12307904

    申请日:2007-09-21

    IPC分类号: H04W4/00

    CPC分类号: H04B7/155 H04W16/26

    摘要: A first repeater operating within a wireless network including a second repeater capable of communicating with the first repeater, and first and second wireless station devices capable of communicating with at least one of the first repeater and the second repeater, includes a reception device for receiving a wireless signal at a reception frequency; a detector for detecting if a predetermined portion of the received wireless signal includes a modified portion to thereby determine that the received signal is from the second repeater; and a transmission device for transmitting the wireless signal to one of the first and second wireless station devices at a transmission frequency to thereby repeat the wireless signal.

    摘要翻译: 在包括能够与第一中继器通信的第二中继器的无线网络中工作的第一中继器以及能够与第一中继器和第二中继器中的至少一个通信的第一和第二无线站设备包括:接收装置, 接收频率的无线信号; 检测器,用于检测所接收的无线信号的预定部分是否包括修改部分,从而确定接收到的信号来自第二中继器; 以及传输设备,用于以传输频率将无线信号发射到第一和第二无线站设备中的一个,从而重复无线信号。

    Configuration of a repeater
    2.
    发明授权
    Configuration of a repeater 有权
    中继器的配置

    公开(公告)号:US08121535B2

    公开(公告)日:2012-02-21

    申请号:US12041621

    申请日:2008-03-03

    IPC分类号: H04B7/15

    摘要: Methods and systems are provided to configure a frequency repeater. The frequency repeater is configured with an identity of a service provider and receives a message that defines a set of frequencies to be repeated, the frequencies are associated with a service provider that matches the preconfigured identity. A digital filter receives an incoming signal from the service provider, and filters and repeats the frequencies defined in the received message. The frequency receiver can also determine a set of frequencies to be filtered and repeated based on a cell search procedure performed with a modem that resides in the repeater. A policy established by the service provider can also be utilized to facilitate defining the set of figures to be repeated. By utilizing a signal quality metric and an isolation metric associated, with the performance of a receive and transmit antenna utilized by the repeater, the set of frequencies to be filtered and repeated can be adapted in real time.

    摘要翻译: 提供了方法和系统来配置频率转发器。 频率转发器配置有服务提供商的身份,并接收定义要重复的一组频率的消息,该频率与与预先配置的身份匹配的服务提供商相关联。 数字滤波器从服务提供商接收输入信号,并且对接收到的消息中定义的频率进行滤波和重复。 频率接收机还可以基于使用驻留在中继器中的调制解调器执行的小区搜索过程来确定要过滤和重复的一组频率。 还可以利用由服务提供商建立的策略来促进定义要重复的图集。 通过利用与中继器所使用的接收和发射天线的性能相关联的信号质量度量和隔离度量,可以实时地调整要滤波和重复的频率集合。

    Physical layer repeater utilizing real time measurement metrics and adaptive antenna array to promote signal integrity and amplification
    3.
    发明授权
    Physical layer repeater utilizing real time measurement metrics and adaptive antenna array to promote signal integrity and amplification 有权
    物理层中继器利用实时测量量度和自适应天线阵列来促进信号完整性和放大

    公开(公告)号:US07907891B2

    公开(公告)日:2011-03-15

    申请号:US12041598

    申请日:2008-03-03

    IPC分类号: H04B3/36

    摘要: Embodiments of a repeater environment can be operative to deploy a feedback cancellation loop that is adaptively coupled with an antenna array such that a selected metric can be applied to the antenna array and feedback cancellation loop combination to improve signal integrity and amplification. Illustratively, the feedback cancellation loop of the exemplary repeater can be adapted by a metric that operatively adapts weights provided by performing a selected linear algebra technique to the feedback cancellation loop such that the metric can be indicative of the level of transmitter signal present at a receive and can be derived based on performing a correlation between the transmitted signal and the receiver signal. Further, operatively, the exemplary repeater can maintain a delay sufficient to preferably ensure that transmitted signal is de-correlated with the desired receiver signal, and time aligned and correlated with the feedback leakage signal.

    摘要翻译: 中继器环境的实施例可以操作以部署与天线阵列自适应地耦合的反馈消除环路,使得所选择的度量可被应用于天线阵列和反馈消除环路组合以改善信号完整性和放大。 示例性地,示例性中继器的反馈消除循环可以通过度量来适配,该度量可操作地将通过执行所选线性代数技术所提供的权重适配到反馈消除环路,使得度量可以指示存在于接收器处的发射机信号的电平 并且可以基于执行发送信号和接收机信号之间的相关性导出。 此外,可操作地,示例性中继器可以保持足够的延迟,以优选地确保所发送的信号与期望的接收机信号不相关,并且与反馈泄漏信号相对应并且与时间对准。

    Superimposed composite channel filter
    4.
    发明授权
    Superimposed composite channel filter 有权
    叠加复合通道滤波器

    公开(公告)号:US07907513B2

    公开(公告)日:2011-03-15

    申请号:US12041626

    申请日:2008-03-03

    IPC分类号: H04J11/00 H04J3/00 H04B1/707

    摘要: Methods and systems are provided to generate digital coefficients for a filter. The generation of coefficients relies on a Fourier transformation of an impulse response in time domain that is zero padded, e.g., zeros are appended to an array corresponding to a sampled input signal of length M. A unit prototypical filter is generated through a frequency domain response of length NFFT=NS+M−1, wherein NS is a sampling length of the incoming signal. The unit prototypical filter is then circularly shifted in order to generate a band pass filter centered at a desired frequency. Circularly shifted filters are point-to-point added to generate a set of composite digital coefficients to filter the incoming signal. The reference frequencies for the composite filter are extracted from a message received from one or more base stations associated with one or more service providers. The composite filter typically operates on a frequency repeater.

    摘要翻译: 提供方法和系统以产生用于滤波器的数字系数。 系数的产生依赖于零填充的时域中的脉冲响应的傅立叶变换,例如,零被附加到与长度为M的采样输入信号相对应的阵列上。通过频域响应产生单元原型滤波器 长度为NFFT = NS + M-1,其中NS是输入信号的采样长度。 然后将单元原型滤波器循环移位,以便产生以期望频率为中心的带通滤波器。 循环移位滤波器是点对点相加以产生一组复合数字系数来滤波输入信号。 从与一个或多个服务提供商相关联的一个或多个基站接收的消息中提取复合滤波器的参考频率。 复合滤波器通常在频率转发器上运行。

    Multiple-antenna device having an isolation element
    5.
    发明授权
    Multiple-antenna device having an isolation element 有权
    具有隔离元件的多天线装置

    公开(公告)号:US07893889B2

    公开(公告)日:2011-02-22

    申请号:US12563777

    申请日:2009-09-21

    IPC分类号: H01Q21/00 H01Q7/20

    摘要: A multiple-antenna device is provided, comprising: a printed circuit board having a ground plane configured to provide electromagnetic isolation between a first side of the printed circuit board and a second side of the printed circuit board; a first non-conductive support member formed over the first side of the printed circuit board; a second non-conductive support member formed over the second side of the printed circuit board; a first antenna formed over the first non-conductive support member; and a second antenna formed over the second non-conductive support member, wherein the first antenna is electrically connected to a first feed point on a first portion of the printed circuit board that is not connected to the ground plane, and wherein the second antenna is electrically connected to a second feed point on a second portion of the printed circuit board that is not connected to the ground plane.

    摘要翻译: 提供一种多天线装置,包括:印刷电路板,其具有被配置为在所述印刷电路板的第一侧和所述印刷电路板的第二侧之间提供电磁隔离的接地面; 形成在所述印刷电路板的所述第一侧上的第一非导电支撑构件; 形成在印刷电路板的第二侧上的第二非导电支撑构件; 形成在所述第一非导电支撑构件上的第一天线; 以及形成在所述第二非导电支撑构件上的第二天线,其中所述第一天线电连接到所述印刷电路板的未连接到所述接地平面的第一部分上的第一馈电点,并且其中所述第二天线是 电连接到印刷电路板的未连接到接地平面的第二部分上的第二馈电点。

    Adaptive antenna for use in same frequency networks

    公开(公告)号:US06518920B2

    公开(公告)日:2003-02-11

    申请号:US09942257

    申请日:2001-08-28

    IPC分类号: H04B700

    摘要: An antenna apparatus which can increase capacity in a cellular communication system. The antenna operates in conjunction with a mobile subscriber unit and provides a plurality of antenna elements, each coupled to a respective programmable phase shifter. The phase of each antenna element is programmed for optimum reception during, for example, an idle mode which receives a pilot signal. The antenna array creates a beamformer for signals to be transmitted from the mobile subscriber unit, and a directional receiving array to more optimally detect and receive signals transmitted from the base station. By directionally receiving and transmitting signals, multipath fading is greatly reduced as well as intercell interference. Various techniques for determining the proper phase of each antenna element are accommodated.

    Control message management in physical layer repeater
    7.
    发明授权
    Control message management in physical layer repeater 有权
    物理层中继器控制消息管理

    公开(公告)号:US08885688B2

    公开(公告)日:2014-11-11

    申请号:US11448155

    申请日:2006-06-07

    IPC分类号: H04B3/36 H04B7/14 H04L25/60

    CPC分类号: H04B7/2606 H04B7/15535

    摘要: A repeater is configured to selectively generate and transmit control message packets between wireless stations on both a transmit side and a receive side of the repeater. The repeater manages and manipulates an end to end protocol of the control message packets in a manner that does not change media access control (MAC) addresses of the end to end protocol so as to achieve a network objective, such as preventing other transmitters from transmitting while the repeater repeats a signal from its receive side to its transmit side. The control message management is applicable to analog signal repeaters as well as digital repeaters, such as symbol to symbol or packet to packet repeaters, in which physical layer control message management is performed.

    摘要翻译: 中继器被配置为在中继器的发送侧和接收侧上的无线站之间选择性地生成和发送控制消息分组。 中继器以不改变端到端协议的媒体访问控制(MAC)地址的方式管理和操纵控制消息分组的端到端协议,以便实现网络目的,例如防止其他发射机发射 而中继器将从其接收侧向其发送侧的信号重复。 控制消息管理适用于模拟信号中继器以及数字中继器,例如符号到符号或数据包到分组中继器,其中执行物理层控制消息管理。

    Closed form calculation of temporal equalizer weights used in a repeater transmitter leakage cancellation system
    8.
    发明授权
    Closed form calculation of temporal equalizer weights used in a repeater transmitter leakage cancellation system 失效
    在中继器发射机泄漏消除系统中使用的时间均衡器权重的闭合形式计算

    公开(公告)号:US08599906B2

    公开(公告)日:2013-12-03

    申请号:US12041603

    申请日:2008-03-03

    IPC分类号: H04B3/36

    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。

    Interference cancellation repeater incorporating a non-linear element
    9.
    发明授权
    Interference cancellation repeater incorporating a non-linear element 失效
    包含非线性元件的干扰消除中继器

    公开(公告)号:US08553610B2

    公开(公告)日:2013-10-08

    申请号:US13106656

    申请日:2011-05-12

    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。