21.
    发明专利
    未知

    公开(公告)号:BRPI0715908A2

    公开(公告)日:2014-03-18

    申请号:BRPI0715908

    申请日:2007-08-31

    Applicant: QUALCOMM INC

    Abstract: A repeater for a wireless communication network includes a reception antenna and first and second transmission antennas. The repeater also includes a weighting circuit which applies a weight to at least one of first and second signals on first and second transmission paths coupled to the first and second transmission antennas respectively, and a control circuit configured to control the weighting circuit in accordance with an adaptive algorithm to thereby increase isolation between a reception path coupled to the reception antenna and the first and second transmission paths.

    SUPERIMPOSED COMPOSITE CHANNEL FILTER

    公开(公告)号:CA2677917C

    公开(公告)日:2013-09-24

    申请号:CA2677917

    申请日:2008-03-03

    Applicant: QUALCOMM INC

    Abstract: 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.

    REPEATER TECHNIQUES FOR MULTIPLE INPUT MULTIPLE OUTPUT UTILIZING BEAM FORMERS

    公开(公告)号:CA2667470A1

    公开(公告)日:2008-05-15

    申请号:CA2667470

    申请日:2007-10-26

    Applicant: QUALCOMM INC

    Abstract: A repeater for a wireless communication network includes a first receptio n antenna for receiving a reception signal on a first path from one of an ac cess point, another repeater or a wireless station device; a second receptio n antenna for receiving the reception signal on a second path; a reception w eighting circuit for applying first and second weights to the reception sign al to generate a first weighted reception signal and a second weighted recep tion signal; a signal combiner for combining the first and second weighted r eception signals according to various mathematical combinations to generate a plurality of combined reception signals; and a transmission antenna for tr ansmitting a transmission signal corresponding to one of the combined recept ion signals to one of the access point, the another repeater or the wireless station device.

    WIRELESS REPEATER WITH MASTER/SLAVE CONFIGURATION
    25.
    发明公开
    WIRELESS REPEATER WITH MASTER/SLAVE CONFIGURATION 审中-公开
    DRAHTLOSERVERSTÄRKERMIT MASTER / SLAVE-KONFIGURATION

    公开(公告)号:EP2018714A4

    公开(公告)日:2013-07-17

    申请号:EP07795012

    申请日:2007-05-18

    Applicant: QUALCOMM INC

    CPC classification number: H04W88/085 H04W16/26

    Abstract: A wireless repeater extends a coverage area of a wireless network base station within a structure or facility. The repeater includes a master unit for wirelessly communicating with the wireless network base station and a slave unit for wirelessly communicating with one or more subscriber terminals. The master unit is connected to the slave unit through new existing wiring in the structure to enable the master unit to transmit wireless signals to the slave unit on a downlink transport frequency and to receive wireless signals from the slave unit on an uplink transport frequency in a manner that is transparent to the wireless base station and the subscriber terminals.

    Abstract translation: 无线中继器在结构或设施内扩展无线网络基站的覆盖区域。 中继器包括用于与无线网络基站无线通信的主单元和用于与一个或多个用户终端进行无线通信的从单元。 主单元通过结构中的新的或现有的布线连接到从单元,以使得主单元能够在下行链路传输频率上向从单元发送无线信号,并且在上行链路传输频率上从从单元接收无线信号 对无线基站和用户终端透明的方式。

    USE OF A FILTERBANK IN AN ADAPTIVE ON-CHANNEL REPEATER UTILIZING ADAPTIVE ANTENNA ARRAYS
    29.
    发明申请
    USE OF A FILTERBANK IN AN ADAPTIVE ON-CHANNEL REPEATER UTILIZING ADAPTIVE ANTENNA ARRAYS 审中-公开
    在自适应通道重复器中使用过滤器在自适应天线阵列中的应用

    公开(公告)号:WO2008109571A2

    公开(公告)日:2008-09-12

    申请号:PCT/US2008055733

    申请日:2008-03-03

    CPC classification number: H04B7/15585 H04B7/15542 H04B7/15571

    Abstract: A repeater environment is provided operative 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 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. In an illustrative implementation, an exemplary repeater environment comprises, a 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 antenna array.

    Abstract translation: 提供中继器环境,其操作是部署与天线阵列自适应地耦合的反馈消除环路,使得可以通过部署所选择的滤波器组来导出所选择的度量,所述选择的滤波器组可操作以通过分组来处理在信道上的信号,并且导出的度量可以 应用于天线阵列和反馈消除环组合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,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,并向协作天线阵列提供诸如反馈泄漏信号的输出信号。

    ENHANCED PHYSICAL LAYER REPEATER FOR OPERATION IN WIMAX SYSTEMS
    30.
    发明申请
    ENHANCED PHYSICAL LAYER REPEATER FOR OPERATION IN WIMAX SYSTEMS 审中-公开
    增强了在WIMAX系统中运行的物理层重复器

    公开(公告)号:WO2007123733A3

    公开(公告)日:2008-11-27

    申请号:PCT/US2007007978

    申请日:2007-03-30

    CPC classification number: H04B7/15557 H04B7/15535

    Abstract: An exemplary method (500) and repeater (110, 210, 300) are described for repeating using a time division duplex (TDD) radio protocol. A signal is transmitted from a first station to a second station using a downlink and an uplink. The signal can be detected with detectors (309, 310, 855, 856) on the uplink or the downlink. The repeater can synchronize to time intervals associated with the detected signal that are measured during an observation period. The signal can be retransmitted from the second station to the first station if the signal is detected on the uplink and re-transmitted from the first station to the second station if the signal is detected on the downlink. A gain value associated with the downlink can be used to establish a gain value associated with the uplink.

    Abstract translation: 描述了用于重复使用时分双工(TDD)无线电协议的示例性方法(500)和中继器(110,210,300)。 使用下行链路和上行链路将信号从第一站发送到第二站。 可以在上行链路或下行链路上用检测器(309,310,855,856)检测信号。 中继器可以与在观察期间测量的检测到的信号相关联的时间间隔同步。 如果在下行链路上检测到信号,则如果在上行链路上检测到信号并从第一站重新发送到第二站,则可以将信号从第二站重新发送到第一站。 可以使用与下行链路相关联的增益值来建立与上行链路相关联的增益值。

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