Use of adaptive antenna array in conjunction with an on-channel repeater to improve signal quality
    151.
    发明授权
    Use of adaptive antenna array in conjunction with an on-channel repeater to improve signal quality 有权
    使用自适应天线阵列结合同频中继器来提高信号质量

    公开(公告)号:US08619837B2

    公开(公告)日:2013-12-31

    申请号:US12041615

    申请日:2008-03-03

    IPC分类号: H04B3/36

    摘要: A repeater environment is provided to deploy a feedback cancellation loop that is adaptively coupled with an antenna array such that a selected metric can be derived by deploying a one or more of selected metrics (e.g., composite metrics) 5 comprising a selected filter bank operative to process the signal on a bin by bin basis and the derived metric can be applied to the antenna array and feedback cancellation loop combination to improve signal integrity and amplification, beam forming operations, and pilot control and overhead channel control operations. In an illustrative implementation, an exemplary repeater environment comprises, a 10 transmitter, a receiver, an equalized feedback cancellation loop circuitry comprising a filter bank, the cancellation loop being operatively coupled to an antenna array. In the illustrative implementation, the feedback cancellation loop can receive signals as input from a cooperating antenna array and provide output signals such as a feedback leakage signal to a cooperating.

    摘要翻译: 提供中继器环境以部署与天线阵列自适应地耦合的反馈消除环路,使得可以通过部署包括被选择的滤波器组的所选择的度量(例如,复合度量)5中的一个或多个来导出所选度量, 以bin为单位处理一个bin上的信号,并将导出的度量值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,波束形成操作以及导频控制和开销信道控制操作。 在说明性实现中,示例性中继器环境包括10个发射机,接收机,包括滤波器组的均衡反馈消除环路电路,该消除环路可操作地耦合到天线阵列。 在说明性实现中,反馈消除环路可以从协作天线阵列接收信号作为输入,并将诸如反馈泄漏信号的输出信号提供给协作。

    Time-slotted data packets with a preamble
    152.
    发明授权
    Time-slotted data packets with a preamble 有权
    具有前导码的时隙数据包

    公开(公告)号:US08467353B2

    公开(公告)日:2013-06-18

    申请号:US13026865

    申请日:2011-02-14

    IPC分类号: H04J13/00

    摘要: A method and apparatus are used to support the transmission of data to a user over multiple allocated data channels. Data packets are transmitted in time-slots of the allocated data channels to corresponding target receivers without the need for explicitly assigning particular time-slots to a target user well in advance of transmitting any data packets in the time-slots. Instead, each data packet transmitted in a time-slot includes a header label or preamble indicating to which of multiple possible receivers a data packet is directed. The preamble also preferably includes decoding information indicating how a corresponding data payload of the data packet is to be processed for recapturing transmitted raw data.

    摘要翻译: 一种方法和装置用于支持通过多个分配的数据信道向用户发送数据。 数据分组在分配的数据信道的时隙中被发送到相应的目标接收机,而不需要在时隙内发送任何数据分组之前向目标用户明确地分配特定的时隙。 相反,在时隙中发送的每个数据分组包括指示数据分组指向的多个可能的接收机中的哪一个的报头标签或前导码。 前导码还优选地包括指示如何处理数据分组的相应数据有效载荷以用于重新捕获发送的原始数据的解码信息。

    Antenna control system and method
    156.
    发明授权
    Antenna control system and method 有权
    天线控制系统及方法

    公开(公告)号:US08155096B1

    公开(公告)日:2012-04-10

    申请号:US09999172

    申请日:2001-11-30

    IPC分类号: H04B7/216 H04B1/00 H04B7/00

    摘要: Each of multiple directional transmissions from an antenna array of a subscriber unit are received at a base unit. Based on the detected quality of received signals at the base unit, directional transmissions from the antenna array that produce a higher quality of received signal at the base unit receiver are identified. Feedback messages can be used to notify the subscriber unit which of the directional transmissions are optimal. Consequently, settings of an antenna array at the subscriber unit can be adjusted to support more efficient directional transmissions from the subscriber unit to the base unit.

    摘要翻译: 在基站单元处接收来自用户单元的天线阵列的多个定向传输中的每一个。 基于检测到的基本单元处的接收信号的质量,识别来自天线阵列的在基本单元接收机处产生更高质量的接收信号的定向传输。 反馈消息可用于通知订户单元哪个定向传输是最佳的。 因此,可以调整用户单元处的天线阵列的设置,以支持从用户单元到基站单元的更有效的定向传输。

    Wireless local area network repeater with detection
    158.
    发明授权
    Wireless local area network repeater with detection 有权
    具有检测功能的无线局域网中继器

    公开(公告)号:US08111645B2

    公开(公告)日:2012-02-07

    申请号:US10533589

    申请日:2003-11-17

    摘要: A frequency translating repeater (200) for use in a time division duplex radio protocol communications system includes an automatic gain control feature. Detection is performed by comparators (401, 411) ADCs (402, 412); DACs (404, 414) and a processor (315). Detection can be overridden by processor (315) using logic elements (406, 416, 407, and 417) to control the generation of a Channel A/Channel B signal and a PA_ON signal for controlling a power amplifier associated with the transmitter.

    摘要翻译: 用于时分双工无线电协议通信系统的频率转换中继器(200)包括自动增益控制特征。 通过比较器(401,411)ADC(402,412)进行检测; DAC(404,414)和处理器(315)。 处理器(315)可以使用逻辑元件(406,416,407和417)来覆盖检测,以控制通道A /通道B信号的产生和用于控制与发送器相关联的功率放大器的PA_ON信号。

    Forward error correction scheme for high rate data exchange in a wireless system
    160.
    发明授权
    Forward error correction scheme for high rate data exchange in a wireless system 有权
    用于无线系统中高速数据交换的前向纠错方案

    公开(公告)号:US08045536B2

    公开(公告)日:2011-10-25

    申请号:US12110930

    申请日:2008-04-28

    IPC分类号: H04B7/216

    CPC分类号: H04L1/0066 H04L1/0041

    摘要: A transmitter/receiver system for high data transfer in a wireless communication system includes a physical layer processor that comprises an FEC coder, a demultiplexer and a plurality of modem processors. The FEC coder applies error correction codes to the high data rate signal. Thereafter, the demultiplexer distributes portions of the coded high data rate signal to the modem processors. Each modem processor processes its respective portion of the coded signal for transmission in an independent channel.

    摘要翻译: 在无线通信系统中用于高数据传输的发射机/接收机系统包括物理层处理器,其包括FEC编码器,解复用器和多个调制解调器处理器。 FEC编码器对高数据速率信号应用纠错码。 此后,解复用器将编码的高数据速率信号的一部分分配给调制解调处理器。 每个调制解调处理器处理编码信号的各自部分以在独立信道中传输。