Beam-forming apparatus and method using a spatial interpolation based on regular spatial sampling
    3.
    发明授权
    Beam-forming apparatus and method using a spatial interpolation based on regular spatial sampling 有权
    使用基于常规空间采样的空间插值的波束形成装置和方法

    公开(公告)号:US07342535B2

    公开(公告)日:2008-03-11

    申请号:US11399601

    申请日:2006-04-07

    IPC分类号: H01Q3/00

    CPC分类号: H01Q3/26 G01S3/74 G06K9/0057

    摘要: A beam-forming apparatus and method for improving system performance using a spatial interpolation and at least one Angle of Arrival (AoA) in a system based on regular spatial sampling is provided. The AoA is estimated using a carrier-to-interference ratio. Beam-forming angles are distributed and steered in a predefined scheme such that an identical process is applied in all directions. According to this steering, a linear system model is computed based on regular spatial sampling using regular spatial separation at beam angles. Beam-forming performance is improved by compensating for a difference between adaptive and sector-type arrays. Only the steps of computing a spatial interpolation and determining an angle range for beam-forming using at least one AoA are added. The precision of estimating an AoA and the precision of beam-forming increase without an additional antenna. Because the system is simpler than that of an adaptive beam-forming system, significant gain is obtained.

    摘要翻译: 提供了一种用于基于规则空间采样在系统中使用空间插值和至少一个到达角(AoA)来提高系统性能的波束形成装置和方法。 使用载波干扰比估计AoA。 束形成角度以预定义的方案分布和转向,使得在所有方向上应用相同的过程。 根据该转向,基于规则的空间采样计算线性系统模型,使用光束角度的规则空间分离。 通过补偿自适应和扇形阵列之间的差异来提高波束形成性能。 仅使用至少一个AoA计算空间插值和确定用于波束形成的角度范围的步骤。 估计AoA的精度和波束形成的精度增加而没有额外的天线。 由于系统比自适应波束成形系统简单,所以获得了显着的增益。

    Beam-forming apparatus and method using a spatial interpolation based on regular spatial sampling
    4.
    发明申请
    Beam-forming apparatus and method using a spatial interpolation based on regular spatial sampling 有权
    使用基于常规空间采样的空间插值的波束形成装置和方法

    公开(公告)号:US20060244660A1

    公开(公告)日:2006-11-02

    申请号:US11399601

    申请日:2006-04-07

    IPC分类号: H01Q3/00 G01S3/16

    CPC分类号: H01Q3/26 G01S3/74 G06K9/0057

    摘要: A beam-forming apparatus and method for improving system performance using a spatial interpolation and at least one Angle of Arrival (AoA) in a system based on regular spatial sampling is provided. The AoA is estimated using a carrier-to-interference ratio. Beam-forming angles are distributed and steered in a predefined scheme such that an identical process is applied in all directions. According to this steering, a linear system model is computed based on regular spatial sampling using regular spatial separation at beam angles. Beam-forming performance is improved by compensating for a difference between adaptive and sector-type arrays. Only the steps of computing a spatial interpolation and determining an angle range for beam-forming using at least one AoA are added. The precision of estimating an AoA and the precision of beam-forming increase without an additional antenna. Because the system is simpler than that of an adaptive beam-forming system, significant gain is obtained.

    摘要翻译: 提供了一种用于基于规则空间采样在系统中使用空间插值和至少一个到达角(AoA)来提高系统性能的波束形成装置和方法。 使用载波干扰比估计AoA。 束形成角度以预定义的方案分布和转向,使得在所有方向上应用相同的过程。 根据该转向,基于规则的空间采样计算线性系统模型,使用光束角度的规则空间分离。 通过补偿自适应和扇形阵列之间的差异来提高波束形成性能。 仅使用至少一个AoA计算空间插值和确定用于波束形成的角度范围的步骤。 估计AoA的精度和波束形成的精度增加而没有额外的天线。 由于系统比自适应波束成形系统简单,所以获得了显着的增益。

    Beam forming apparatus and method using interference power estimation in an array antenna system
    5.
    发明申请
    Beam forming apparatus and method using interference power estimation in an array antenna system 审中-公开
    在阵列天线系统中使用干涉功率估计的光束形成装置和方法

    公开(公告)号:US20050259006A1

    公开(公告)日:2005-11-24

    申请号:US11135631

    申请日:2005-05-24

    CPC分类号: G01S3/74 G01S3/72 H04B7/086

    摘要: An apparatus and method are provided for simply estimating joint channel and Direction-of-Arrival (DOA) to efficiently estimate a channel impulse response associated with a spatially selective transmission channel occurring in a mobile radio channel, and performing efficient beam forming using the simplified joint channel and DOA estimation are provided. A receiver estimates the total interference power using power for each interference signal, estimates a spectral noise density, calculates steering vectors considering predetermined DOAs, and jointly calculates optimal weight vectors for each DOA of each user by applying the interference power and the spectral noise density to the steering vectors. The beam forming reduces implementation complexity of a TDD system such as a TD-SCDMA and increases beam forming efficiency in a mobile environment by efficiently using spatial diversity.

    摘要翻译: 提供一种装置和方法,用于简单地估计联合信道和到达方向(DOA)以有效地估计与在移动无线电信道中发生的空间选择性传输信道相关联的信道脉冲响应,并且使用简化接头执行有效的波束形成 提供信道和DOA估计。 接收机估计使用每个干扰信号的功率的总干扰功率,估计频谱噪声密度,计算考虑到预定的DOA的导向向量,并且通过将干扰功率和频谱噪声密度应用于每个用户的每个DOA来共同计算最优权重向量 导向矢量。 波束形成降低了诸如TD-SCDMA的TDD系统的实现复杂度,并且通过有效地使用空间分集来增加移动环境中的波束形成效率。

    Interference power measurement apparatus and method for space-time beam forming
    6.
    发明申请
    Interference power measurement apparatus and method for space-time beam forming 审中-公开
    干涉功率测量装置及时空波束成形方法

    公开(公告)号:US20050276361A1

    公开(公告)日:2005-12-15

    申请号:US11149552

    申请日:2005-06-10

    摘要: A noise and interference power measurement apparatus for an antenna diversity system that services a plurality of users with an array antenna having a plurality of antenna elements. A channel estimator estimates a channel impulse response for a radio channel corresponding to a predetermined plurality of regularly spaced direction-of-arrival (DOA) values. A data estimator estimates the received data using a received signal and a system matrix. A quantizer quantizes the estimated data. An interference and noise calculator calculates noise vectors at the respective antenna elements by removing from the received signal an influence of the quantized data to which the system matrix is applied, calculates an estimated noise matrix at the plurality of antenna elements, calculates interference power by auto-correlating the estimated noise matrix, and calculates noise and interference power based on the interference power.

    摘要翻译: 一种天线分集系统的噪声和干扰功率测量装置,其使用具有多个天线元件的阵列天线为多个用户提供服务。 信道估计器估计对应于预定的多个规则间隔的到达方向(DOA)值的无线电信道的信道脉冲响应。 数据估计器使用接收的信号和系统矩阵来估计所接收的数据。 量化器量化估计数据。 干扰噪声计算器通过从接收信号中去除应用系统矩阵的量化数据的影响来计算各个天线元件的噪声矢量,计算多个天线元件的估计噪声矩阵,通过自动计算干扰功率 - 相关估计噪声矩阵,并根据干扰功率计算噪声和干扰功率。