Adaptive antenna
    2.
    发明授权
    Adaptive antenna 失效
    自适应天线

    公开(公告)号:US6061553A

    公开(公告)日:2000-05-09

    申请号:US2394

    申请日:1998-01-02

    IPC分类号: H01Q3/26 H04B1/06

    摘要: An adaptive antenna is disclosed, that comprises a plurality of antenna elements 1.sub.1, 1.sub.2, . . . , and 1.sub.N with different directivity, delay profile measuring units 2.sub.1, 2.sub.2, . . . , and 2.sub.N for estimating states of received signals of the antenna elements for each of delay times that have been designated, antenna selecting units 3.sub.1, 3.sub.2, . . . , and 3.sub.L for selecting a part of the antenna elements for each of the delay times corresponding to the estimated result, adaptive signal processing portions 4.sub.1, 4.sub.2, . . . , and 4.sub.L for determining the received signals of the part of the antenna elements that have been selected and multiplying the received signals to which relevant weights have been determined for each of the delay time and summing the weighted signals, delaying circuits 5.sub.2 and 5.sub.3 for compensating the time lag, or delay of each of the received signals for each of the delay times, and a combining unit 6 for combining the weighted signals that have been compensated for the delay times.

    摘要翻译: 公开了一种自适应天线,其包括多个天线元件11,12。 。 。 ,和1N具有不同的方向性,延迟分布测量单元21,22。 。 。 以及2N,用于估计每个被指定的延迟时间的天线元件的接收信号的状态,天线选择单元31,32。 。 。 以及3L,用于对应于估计结果的每个延迟时间选择天线元件的一部分,自适应信号处理部分41,42,...。 。 。 和4L,用于确定已经选择的天线元件的部分的接收信号,并且对已经为每个延迟时间确定了相关权重的接收信号并对加权信号求和,对延迟电路52和53进行补偿 每个延迟时间的每个接收信号的时间延迟或延迟,以及用于组合已经被补偿了延迟时间的加权信号的组合单元6。

    Radio communication apparatus using adaptive antenna
    3.
    发明授权
    Radio communication apparatus using adaptive antenna 失效
    使用自适应天线的无线电通信装置

    公开(公告)号:US07043275B2

    公开(公告)日:2006-05-09

    申请号:US10859964

    申请日:2004-06-04

    IPC分类号: H04B1/38

    CPC分类号: H04B7/086 H04B7/0617

    摘要: In a radio communication apparatus, delay profiles of a desired wave and delay waves thereof are estimated by plural delay profile estimation sections for each of received signals from directional antennas constituting an array antenna. Received signals from the antennas selected by a reception antenna selector on the basis of the delay profile are subjected to a temporal/spatial equalization processing by an adaptive signal processing section and a path diversity combining section, thereby obtaining a reception output. An arrival angle range of the desired wave is estimated by a DOA estimation section from the delay profile estimated by the delay profile estimation section. Based on the arrival angle range, the antenna for transmission is selected by a transmission antenna selection section, and transmission signals are sent out.

    摘要翻译: 在无线通信装置中,对于构成阵列天线的定向天线的每个接收信号,通过多个延迟分布估计部来估计期望波及其延迟波的延迟分布。 基于延迟分布由接收天线选择器选择的天线的接收信号由自适应信号处理部分和路径分集组合部分进行时间/空间均衡处理,从而获得接收输出。 期望波的到达角度范围由DOA估计部分根据由延迟分布估计部分估计的延迟分布来估计。 基于到达角度范围,通过发送天线选择部选择发送用天线,发送发送信号。

    Radio communication apparatus using adaptive antenna

    公开(公告)号:US06771988B2

    公开(公告)日:2004-08-03

    申请号:US09745475

    申请日:2000-12-26

    IPC分类号: H04M100

    CPC分类号: H04B7/086 H04B7/0617

    摘要: In a radio communication apparatus, delay profiles of a desired wave and delay waves thereof are estimated by plural delay profile estimation sections for each of received signals from directional antennas constituting an array antenna. Received signals from the antennas selected by a reception antenna selector on the basis of the delay profile are subjected to a temporal/spatial equalization processing by an adaptive signal processing section and a path diversity combining section, thereby obtaining a reception output. An arrival angle range of the desired wave is estimated by a DOA estimation section from the delay profile estimated by the delay profile estimation section. Based on the arrival angle range, the antenna for transmission is selected by a transmission antenna selection section, and transmission signals are sent out.

    Radio communication system
    5.
    发明授权
    Radio communication system 失效
    无线通信系统

    公开(公告)号:US07496384B2

    公开(公告)日:2009-02-24

    申请号:US11288171

    申请日:2005-11-29

    IPC分类号: H04M1/00

    摘要: There is disclosed a radio communication system in which a constitution of a base station and further a control station can be simplified. A radio communication system according to the present invention converts a received signal received by a plurality of antenna elements in a base station to a signal of different frequency band, and then conflates the converted signal in order to generate sub-carrier wave multiplex signal. The signal is converted to an optical signal, and then the optical signal is transmitted to a control station via an optical fiber. Or the control station performs weighting to phase of the transmitted signal transmitted from a plurality of antennas of a base station, and then performs frequency conversion to different frequency band, and then conflates the converted signal in order to generate the sub-carrier wave multiplex signal. The signal is converted to an optical signal, and then an optical signal is transmitted to the base station side via the optical fiber. The control station and the base station divides the received sub-carrier wave multiplex signal by each frequency band, and then the frequency of the divided signals are converted to the same frequency band in order to generate the transmitted/received signal of each antenna element. By such a constitution, it is possible to reduce constituent of the optical transmission components to the minimum and to simplify the constitution of the base station. Furthermore, it is possible to maintain the relative phase difference and the relative intensity of the transmitted/received signal of each antenna element. Because of this, it is possible to estimate an arrival direction of the received signal and to control radiation beam pattern of the transmitted signal.

    摘要翻译: 公开了一种无线电通信系统,其中可以简化基站的结构和控制站的结构。 根据本发明的无线电通信系统将由基站中的多个天线元件接收的接收信号转换为不同频带的信号,然后混合转换的信号以产生副载波复用信号。 信号被转换为光信号,然后光信号通过光纤传输到控制站。 或者控制站对从基站的多个天线发送的发送信号的相位进行加权,然后对不同的频带进行频率转换,然后混合转换的信号,以产生副载波复用信号 。 信号被转换为光信号,然后经由光纤将光信号发送到基站侧。 控制站和基站将接收到的副载波复用信号除以每个频带,然后将分频信号的频率转换为相同的频带,以便产生每个天线单元的发送/接收信号。 通过这样的结构,能够将光传输部件的成分最小化,并且简化基站的结构。 此外,可以保持每个天线元件的发送/接收信号的相对相位差和相对强度。 因此,可以估计接收信号的到达方向并控制发送信号的辐射束图案。

    Diversity receiver device
    6.
    发明申请
    Diversity receiver device 审中-公开
    分集接收机设备

    公开(公告)号:US20060294170A1

    公开(公告)日:2006-12-28

    申请号:US11384497

    申请日:2006-03-21

    IPC分类号: G06F17/10

    摘要: A diversity receiver device includes N antennas to receive OFDM signals, N digital filters to filter the signals received by the N antennas in order to reduce delay spread, K (K≦N) beamforming units configured to subject the filtered signals to a beamforming process by using combining weights, an eigen-decomposition unit configured to subject the filtered signals to eigen-decomposition to generate N eigenvalues, a weight setting unit configured to select K eigenvalues in descending order from the generated N eigenvalues in order to set eigenvectors corresponding to the K eigenvalues to the beamforming units as the combing weight, respectively, K FFT units configured to subject the output signals of the beamforming units to fast Fourier transformation to output FFT signals, and a diversity combining unit configured to combine the FFT signals.

    摘要翻译: 分集接收机设备包括用于接收OFDM信号的N个天线,N个数字滤波器,以对由N个天线接收到的信号进行滤波,以便减少延迟扩展,K(K <= N)个波束形成单元,被配置为使滤波后的信号进行波束形成处理 通过使用组合权重,特征分解单元,被配置为对滤波后的信号进行本征分解以产生N个特征值;权重设置单元,被配置为从所生成的N个特征值以降序选择K个特征值,以便设置与本征值对应的特征向量 K个特征值分别作为梳理权重的KFT单元,被配置为使波束形成单元的输出信号经受快速傅里叶变换以输出FFT信号;以及分集合并单元,被配置为组合FFT信号。

    Radio communication system
    7.
    发明授权

    公开(公告)号:US07043271B1

    公开(公告)日:2006-05-09

    申请号:US09660467

    申请日:2000-09-12

    IPC分类号: H04M1/00

    摘要: There is disclosed a radio communication system in which a constitution of a base station and further a control station can be simplified. A radio communication system according to the present invention converts a received signal received by a plurality of antenna elements in a base station to a signal of different frequency band, and then conflates the converted signal in order to generate sub-carrier wave multiplex signal. The signal is converted to an optical signal, and then the optical signal is transmitted to a control station via an optical fiber. Or the control station performs weighting to phase of the transmitted signal transmitted from a plurality of antennas of a base station, and then performs frequency conversion to different frequency band, and then conflates the converted signal in order to generate the sub-carrier wave multiplex signal. The signal is converted to an optical signal, and then an optical signal is transmitted to the base station side via the optical fiber. The control station and the base station divides the received sub-carrier wave multiplex signal by each frequency band, and then the frequency of the divided signals are converted to the same frequency band in order to generate the transmitted/received signal of each antenna element. By such a constitution, it is possible to reduce constituent of the optical transmission components to the minimum and to simplify the constitution of the base station. Furthermore, it is possible to maintain the relative phase difference and the relative intensity of the transmitted/received signal of each antenna element. Because of this, it is possible to estimate an arrival direction of the received signal and to control radiation beam pattern of the transmitted signal.

    Radio communication system
    8.
    发明申请
    Radio communication system 失效
    无线通信系统

    公开(公告)号:US20060079290A1

    公开(公告)日:2006-04-13

    申请号:US11288171

    申请日:2005-11-29

    IPC分类号: H04M1/00

    摘要: There is disclosed a radio communication system in which a constitution of a base station and further a control station can be simplified. A radio communication system according to the present invention converts a received signal received by a plurality of antenna elements in a base station to a signal of different frequency band, and then conflates the converted signal in order to generate sub-carrier wavemultiplex signal. The signal is converted to an optical signal, and then the optical signal is transmitted to a control station via an optical fiber. Or the control station performs weighting to phase of the transmitted signal transmitted from a plurality of antennas of a base station, and then performs frequency conversion to different frequency band, and then conflates the converted signal in order to generate the sub-carrier wave multiplex signal. The signal is converted to an optical signal, and then an optical signal is transmitted to the base station side via the optical fiber. The control station and the base station divides the received sub-carrier wave multiplex signal by each frequency band, and then the frequency of the divided signals are converted to the same frequency band in order to generate the transmitted/received signal of each antenna element. By such a constitution, it is possible to reduce constituent of the optical transmission components to the minimum and to simplify the constitution of the base station. Furthermore, it is possible to maintain the relative phase difference and the relative intensity of the transmitted/received signal of each antenna element. Because of this, it is possible to estimate an arrival direction of the received signal and to control radiation beam pattern of the transmitted signal.

    摘要翻译: 公开了一种无线电通信系统,其中可以简化基站的结构和控制站的结构。 根据本发明的无线电通信系统将由基站中的多个天线元件接收的接收信号转换为不同频带的信号,然后混合转换的信号以产生副载波复用信号。 信号被转换为光信号,然后光信号通过光纤传输到控制站。 或者控制站对从基站的多个天线发送的发送信号的相位进行加权,然后对不同的频带进行频率转换,然后混合转换的信号,以产生副载波复用信号 。 信号被转换为光信号,然后经由光纤将光信号发送到基站侧。 控制站和基站将接收到的副载波复用信号除以每个频带,然后将分频信号的频率转换为相同的频带,以便产生每个天线单元的发送/接收信号。 通过这样的结构,能够将光传输部件的成分最小化,并且简化基站的结构。 此外,可以保持每个天线元件的发送/接收信号的相对相位差和相对强度。 因此,可以估计接收信号的到达方向并控制发送信号的辐射束图案。

    OFDM demodulation apparatus, method and computer readable medium
    9.
    发明授权
    OFDM demodulation apparatus, method and computer readable medium 失效
    OFDM解调装置,方法和计算机可读介质

    公开(公告)号:US07551548B2

    公开(公告)日:2009-06-23

    申请号:US11387966

    申请日:2006-03-24

    IPC分类号: H04J11/00

    CPC分类号: H04L27/2647

    摘要: Orthogonal frequency division multiplexing demodulation apparatus includes: antenna to receive signal including holding period including part of period ranging from leading portion of delayed wave of maximum-delay time to trailing portion of preceding wave, unit estimating channel response of signal received by antenna, unit holding, based on channel response, first-signal component contained in holding period, first-signal component including second-signal component which is contained in period of preset length which is included in holding period, unit acquiring filter-bank outputs by subjecting second-signal component to frequency conversion, unit generating replicas for each of filter-bank outputs, based on estimated-channel response, frequency response of each of filter-bank outputs, and candidates for modulation signal corresponding to subcarrier included in each of filter-bank outputs, unit selecting one of replicas which minimizes quantity corresponding to differences between components of each of filter-bank outputs and components of replicas, and unit determining modulation signal based on selected replica.

    摘要翻译: 正交频分复用解调装置包括:天线接收信号,包括保持周期,包括从最大延迟时间的延迟波的前导部分到前一个波形的尾部的时间段的一部分,单元估计由天线接收的信号的信道响应,单元保持 基于信道响应,包含在保持周期中的第一信号分量包括包含在保持周期中的预设长度的周期中的第二信号分量的第一信号分量通过对第二信号进行二次信号的单元获取滤波器组输出 基于估计的信道响应,每个滤波器组输出的频率响应以及与每个滤波器组输出中包括的子载波相对应的调制信号的候选,对于每个滤波器组输出的单元生成副本, 选择最小化对应于co之间的差异的数量的复制品之一的单元 滤波器组输出和副本组件中的每一个的组成部分,以及基于选择的副本的单元确定调制信号。

    OFDM demodulation apparatus, method and computer readable medium

    公开(公告)号:US20060285482A1

    公开(公告)日:2006-12-21

    申请号:US11387966

    申请日:2006-03-24

    IPC分类号: H04J11/00

    CPC分类号: H04L27/2647

    摘要: Orthogonal frequency division multiplexing demodulation apparatus includes: antenna to receive signal including holding period including part of period ranging from leading portion of delayed wave of maximum-delay time to trailing portion of preceding wave, unit estimating channel response of signal received by antenna, unit holding, based on channel response, first-signal component contained in holding period, first-signal component including second-signal component which is contained in period of preset length which is included in holding period, unit acquiring filter-bank outputs by subjecting second-signal component to frequency conversion, unit generating replicas for each of filter-bank outputs, based on estimated-channel response, frequency response of each of filter-bank outputs, and candidates for modulation signal corresponding to subcarrier included in each of filter-bank outputs, unit selecting one of replicas which minimizes quantity corresponding to differences between components of each of filter-bank outputs and components of replicas, and unit determining modulation signal based on selected replica.