Low cost multiple pattern antenna for use with multiple receiver systems
    51.
    发明授权
    Low cost multiple pattern antenna for use with multiple receiver systems 失效
    低成本多模式天线,用于多个接收机系统

    公开(公告)号:US07253783B2

    公开(公告)日:2007-08-07

    申请号:US11101914

    申请日:2005-04-08

    Abstract: An antenna assembly includes at least two active or main radiating omni-directional antenna elements arranged with at least one beam control or passive antenna element used as a reflector. The beam control antenna element(s) may have multiple reactance elements that can electrically terminate it to adjust the input or output beam pattern(s) produced by the combination of the active antenna elements and the beam control antenna element(s). More specifically, the beam control antenna element(s) may be coupled to different terminating reactances to change beam characteristics, such as the directivity and angular beamwidth. Processing may be employed to select which terminating reactance to use. Consequently, the radiator pattern of the antenna can be more easily directed towards a specific target receiver/transmitter, reduce signal-to-noise interference levels, and/or increase gain. A Multiple-Input, Multiple-Output (MIMO) processing technique may be employed to operate the antenna assembly with simultaneous beam patterns.

    Abstract translation: 天线组件包括至少两个有源或主辐射全向天线元件,其布置有用作反射器的至少一个光束控制或无源天线元件。 波束控制天线元件可以具有多个电抗元件,其可以电气端接它,以调节由有源天线元件和波束控制天线元件的组合产生的输入或输出波束图案。 更具体地,波束控制天线元件可以耦合到不同的终止电抗以改变诸如方向性和角波束宽度的波束特性。 可以使用处理来选择要使用的终止电抗。 因此,天线的辐射器图案可以更容易地指向特定的目标接收器/发射器,降低信噪比干扰电平和/或增加增益。 可以采用多输入多输出(MIMO)处理技术来操作具有同时波束图案的天线组件。

    Antenna adaptation comparison method for high mobility
    52.
    发明授权
    Antenna adaptation comparison method for high mobility 失效
    用于高移动性的天线适应比较方法

    公开(公告)号:US07227907B2

    公开(公告)日:2007-06-05

    申请号:US10386364

    申请日:2003-03-10

    CPC classification number: H04W16/28 H01Q3/44 H01Q19/32

    Abstract: A system causes a scan angle of a directional antenna to change temporarily from a current scan angle to at least one trial scan angle during reception of predetermined portions of an information carrying signal. At the trial scan angle(s), a trial metric associated with each trial scan angle is determined by the system. The system then selects a next scan angle based on the trial metrics. Examples of predetermined portions of the information carrying signal include the Power Control Bit (PCB) and certain symbol periods of the Forward Error Correction (FEC) block.

    Abstract translation: 系统使得定向天线的扫描角度在接收信息携带信号的预定部分期间暂时从当前扫描角度改变为至少一个试射扫描角度。 在试验扫描角度,与每个试验扫描角度相关联的试验度量由系统确定。 然后,系统基于试验度量来选择下一个扫描角度。 信息携带信号的预定部分的示例包括功率控制位(PCB)和前向纠错(FEC)块的某些符号周期。

    Method and apparatus for adapting antenna array using received predetermined signal
    57.
    发明授权
    Method and apparatus for adapting antenna array using received predetermined signal 失效
    使用接收的预定信号适配天线阵列的方法和装置

    公开(公告)号:US07009559B2

    公开(公告)日:2006-03-07

    申请号:US10914982

    申请日:2004-08-10

    Abstract: A mobile subscriber unit includes a smart antenna having antenna elements for generating a plurality of antenna beams, and adjustable weight control components connected to the antenna elements for selecting any one of the antenna beam. A transceiver is connected to the smart antenna. A beam selector controller is connected to the transceiver and operates in a coarse adjustment mode by jointly adjusting the weight control components when scanning through the antenna beams, and operates in a fine adjustment mode by independently adjusting the weight control components when one of the scanned antenna beams is selected.

    Abstract translation: 移动用户单元包括具有用于产生多个天线波束的天线元件的智能天线以及连接到天线元件的可调重量控制元件,用于选择天线波束中的任何一个。 收发器连接到智能天线。 光束选择器控制器连接到收发器并通过在通过天线波束扫描时联合调整重量控制部件而以粗调模式操作,并且当扫描天线之一独立地调整重量控制部件时,以微调模式操作 选择光束。

    Access channel structure for wireless communication system
    60.
    发明授权
    Access channel structure for wireless communication system 有权
    无线通信系统的接入信道结构

    公开(公告)号:US06904079B2

    公开(公告)日:2005-06-07

    申请号:US09766875

    申请日:2001-01-19

    CPC classification number: H04L5/0046 H04B1/707 H04B2201/70701 H04L7/041

    Abstract: A technique for efficient implementation of pilot signals on a reverse link in a wireless communication system. An access channel is defined for the reverse link such that within each frame, or epoch, a portion is dedicated to sending only pilot symbols. Another portion of the frame is reserved for sending mostly data symbols; however, within this second portion of the frame, additional pilot symbols are interleaved among the data symbols. The pilot symbol or preamble portion of the access channel frame allows for efficient acquisition of the access signal at the base station, while providing a timing reference for determining the effects of multipath fading. In particular, a pilot correlation filter provides a phase estimate from the pilot symbols in the preamble portion, which is then used to decode the data symbols in the payload portion. An access acquisition portion of the receiver uses the phase estimates provided by the pilot correlation filter to process the output of a data symbol correlation filter. The additional pilot symbols embedded in the payload portion are used in a cross product operation to further resolve the effects of multipath fading.

    Abstract translation: 一种在无线通信系统中在反向链路上有效实现导频信号的技术。 为反向链路定义了一个接入信道,使得在每个帧或时期内,一部分专用于仅发送导频符号。 帧的另一部分保留用于主要发送数据符号; 然而,在帧的该第二部分内,在数据符号之间交织附加的导频符号。 访问信道帧的导频符号或前导码部分允许在基站处有效地获取接入信号,同时提供用于确定多径衰落的影响的定时参考。 具体地,导频相关滤波器从前导码部分中的导频符号提供相位估计,然后该导频符号用于解码有效载荷部分中的数据符号。 接收机的访问获取部分使用由导频相关滤波器提供的相位估计来处理数据符号相关滤波器的输出。 嵌入在有效载荷部分中的附加导频符号用于交叉乘积运算,以进一步解决多路径衰落的影响。

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