Digital equalizing method and radio communication receiver implementing said method
    1.
    发明授权
    Digital equalizing method and radio communication receiver implementing said method 有权
    数字均衡方法和无线电通信接收机实现所述方法

    公开(公告)号:US06850562B1

    公开(公告)日:2005-02-01

    申请号:US09763934

    申请日:1999-09-02

    CPC分类号: H04L25/03159 H04L25/03203

    摘要: For processing samples of a signal received via a channel represented by an impulse response of W−1 coefficients, the method comprises: determining the W roots of the Z-transform of the channel impulse response; producing an intermediate signal by equalizing the received signal by a zero-forcing method or the like based on an impulse response whose Z-transform is a Z−1 polynomial of degree W-p having as roots those of the W roots which are furthest from the unit circle of the complex plane; and then obtaining estimations of the transmitted signal symbols by applying a Viterbi-type equalization method or the like based on an impulse response whose Z-transform is a Z−1 polynomial of degree p having as roots those of the W roots which are nearest to the unit circle.

    摘要翻译: 为了处理通过由W-1系数的脉冲响应表示的信道接收的信号的采样,该方法包括:确定信道脉冲响应的Z变换的W根; 通过基于脉冲响应的强迫方法等等来接收信号产生中间信号,该冲激响应的Z变换是具有最远离W根的W根的根W的W 复平面的单位圆; 然后通过应用基于脉冲响应的维特比型均衡方法等来获得所发送的信号符号的估计,所述脉冲响应的Z变换是具有最根据的W根的根的那些程度p的Z-1多项式 单位圆。

    Method and apparatus for controlling the sending of data blocks
    2.
    发明授权
    Method and apparatus for controlling the sending of data blocks 有权
    用于控制数据块发送的方法和装置

    公开(公告)号:US07197023B2

    公开(公告)日:2007-03-27

    申请号:US10158309

    申请日:2002-05-30

    IPC分类号: H04B7/212

    摘要: The blocks to be sent on one or more physical channels for packet mode transmission pertain to several temporary block flows to terminals. The terminals are distributed into several subscription classes corresponding to various priority levels and each associated with a throughput restriction parameter. Transmission throug hputs allocated to the flows as a function of transmission throughputs respectively requested during the creation of the flows and restriction parameters associated with the subscription classes are determined. At least one traffic channel supported by a physical channel is allotted to each new flow created. For each send period on a physical channel, a flow to which a traffic channel supported by this physical channel is allotted, is selected with the aid of the values of the transmission throughputs allocated, so as to send a block of the selected flow in the course of said period.

    摘要翻译: 在用于分组模式传输的一个或多个物理信道上发送的块与到终端的几个临时块流相关。 终端被分配到对应于各种优先级的几个订阅类别,并且每个与吞吐量限制参数相关联。 确定分配给流的传输输出作为在创建与订阅类相关联的流量和限制参数期间分别请求的传输吞吐量的函数。 由物理通道支持的至少一个业务信道被分配给每个创建的新流。 对于物理信道上的每个发送周期,通过分配的传输吞吐量的值来选择分配由该物理信道支持的业务信道的流,以便将所选择的流的块发送到 所述期间的课程。

    Space-weighted communication path estimation
    3.
    发明授权
    Space-weighted communication path estimation 有权
    空间加权通信路径估计

    公开(公告)号:US06904107B1

    公开(公告)日:2005-06-07

    申请号:US09402955

    申请日:1998-04-10

    摘要: A method of estimating a communication path formed of a plurality of channels, the method necessitating an estimate of the impulse response C1, C2, . . . , Cn of the channels, including the following steps of (1) acquiring a space statistic of the transmission path, and (2) establishing a corrected impulse response (C1, C2, . . . , Cn) at least by weighting the impulse responce estimates (C1, C2, . . . , Cn) by the space statistic and an estimate of the additive noise (N01, N02, . . . , N0n) of the channels.

    摘要翻译: 一种估计由多个信道形成的通信路径的方法,所述方法需要估计脉冲响应C 1,C 2,...。 。 。 包括以下步骤:(1)获取传输路径的空间统计量,以及(2)建立校正的脉冲响应(C 1 / ,C 2 2,...,C n N)至少通过加权脉冲响应估计(C 1,C 2, / SUB>,...,C N n)通过空间统计量和加性噪声的估计(N L1,N N 2,N 2) ...,N 0n )。

    Method for processing a digital input signal of a channel equalizer
    4.
    发明授权
    Method for processing a digital input signal of a channel equalizer 有权
    用于处理信道均衡器的数字输入信号的方法

    公开(公告)号:US07257174B2

    公开(公告)日:2007-08-14

    申请号:US10343137

    申请日:2001-07-26

    IPC分类号: H03D1/00

    CPC分类号: H04L25/03993 H04L25/03006

    摘要: A baseband digital signal block is processed at an output of a matched filter and at an input of a channel equalizer. This signal is fed to a whitening filter estimated for the block by taking into account interfering signals in the frequency band of the useful signal and in one or more adjacent bands. To this end, an autocorrelation vector, calculated form the block of received signal is projected onto different directions corresponding to predetermined correlation vectors relating to the useful signal, to signals which may be present in the adjacent bands and to the thermal noise. The coefficients of the whitening filter are then derived from the sum of the projected vectors, by taking into account the energy of the useful signal if the latter has not been cancelled prior to the computation of the autocorrelations.

    摘要翻译: 基带数字信号块在匹配滤波器的输出处和信道均衡器的输入处被处理。 该信号通过考虑有用信号的频带中的干扰信号和在一个或多个相邻频带中被馈送到为该块估计的白化滤波器。 为此,从接收信号的块计算的自相关矢量被投影到与有用信号相关的预定相关矢量对应的不同方向上,可能存在于相邻频带中的信号和热噪声。 然后,通过考虑有用信号的能量,如果后者在计算自相关之前尚未被消除,则从投影矢量的和导出白化滤波器的系数。

    Time-weighted transmission channel estimation
    5.
    发明授权
    Time-weighted transmission channel estimation 有权
    时间加权传输信道估计

    公开(公告)号:US06671313B1

    公开(公告)日:2003-12-30

    申请号:US09402956

    申请日:2000-02-14

    IPC分类号: H04B346

    摘要: The invention relates to a method of estimating a transmission channel from a signal (S) received by that channel. The received signal corresponds to a transmitted training sequence, and the method includes the following steps: acquiring a statistic of the transmission channel, establishing an estimate (Xp) of the impulse response of the channel weighted by the statistic of the channel of the received signal (S).

    摘要翻译: 本发明涉及从由该信道接收的信号(S)估计传输信道的方法。 接收到的信号对应于发送的训练序列,该方法包括以下步骤:获取传输信道的统计量,建立由接收信号的信道的统计量加权的信道的脉冲响应的估计(Xp) (S)。

    Method of estimating the symbols of a digital signal and receiver for implementing said method
    6.
    发明授权
    Method of estimating the symbols of a digital signal and receiver for implementing said method 有权
    用于实现所述方法的估计数字信号和接收器的符号的方法

    公开(公告)号:US08428167B2

    公开(公告)日:2013-04-23

    申请号:US13584401

    申请日:2012-08-13

    IPC分类号: H04K1/10

    摘要: The invention relates to a method of estimating symbols carried by a digital signal that is received by a receiver over a communication channel (5), said symbols being multiplexed or orthogonal frequency sub-carriers. The inventive method comprises the following steps in relation to each symbol carried by the digital signal, consisting in: performing at least two transforms towards the frequency domain (8,9) on a portion of the received signal essentially corresponding to the symbol, said transforms being performed with a determined time lag (10) therebetween: estimating the parameters (r0, r1, . . . , rn, r′0, r′1, . . . , r′n) of the communication channel from pre-determined binary information contained in the digital signal; and estimating the symbol from a combination of the result of each of the transforms performed and the estimated communication channel parameters.

    摘要翻译: 本发明涉及一种估计通过通信信道(5)接收的数字信号承载的符号的方法,所述符号被复用或正交的频率子载波。 本发明的方法包括关于由数字信号承载的每个符号的以下步骤,其包括:在基本上对应于符号的接收信号的一部分上对频域(8,9)执行至少两个变换,所述变换 以其中的确定的时间延迟(10)执行:从预先确定的通信信道估计通信信道的参数(r0,r1,...,rn,r'0,r'1,...,r'n) 包含在数字信号中的二进制信息; 以及从所执行的每个变换的结果和估计的通信信道参数的组合来估计符号。

    Method of estimating the symbols of a digital signal and receiver for implementing said method
    8.
    发明授权
    Method of estimating the symbols of a digital signal and receiver for implementing said method 有权
    用于实现所述方法的估计数字信号和接收器的符号的方法

    公开(公告)号:US08295376B2

    公开(公告)日:2012-10-23

    申请号:US13160764

    申请日:2011-06-15

    IPC分类号: H04K1/10

    摘要: The invention relates to a method of estimating symbols carried by a digital signal that is received by a receiver over a communication channel (5), said symbols being multiplexed or orthogonal frequency sub-carriers. The inventive method comprises the following steps in relation to each symbol carried by the digital signal, consisting in: performing at least two transforms towards the frequency domain (8,9) on a portion of the received signal essentially corresponding to the symbol, said transforms being performed with a determined time lag (10) therebetween: estimating the parameters (r0, r1, . . . , rn, r′0, r′1, . . . , r′n) of the communication channel from pre-determined binary information contained in the digital signal; and estimating the symbol from a combination of the result of each of the transforms performed and the estimated communication channel parameters.

    摘要翻译: 本发明涉及一种估计通过通信信道(5)接收的数字信号承载的符号的方法,所述符号被复用或正交的频率子载波。 本发明的方法包括关于由数字信号承载的每个符号的以下步骤,其包括:在基本上对应于符号的接收信号的一部分上对频域(8,9)执行至少两个变换,所述变换 以其中的确定的时间延迟(10)执行:从预先确定的通信信道估计通信信道的参数(r0,r1,...,rn,r'0,r'1,...,r'n) 包含在数字信号中的二进制信息; 以及从所执行的每个变换的结果和估计的通信信道参数的组合来估计符号。

    Method of Estimating the Symbols of a Digital Signal and Receiver for Implementing Said Method
    9.
    发明申请
    Method of Estimating the Symbols of a Digital Signal and Receiver for Implementing Said Method 有权
    用于实现所述方法的数字信号和接收器的符号的估计方法

    公开(公告)号:US20110243282A1

    公开(公告)日:2011-10-06

    申请号:US13160764

    申请日:2011-06-15

    IPC分类号: H04L27/38 H04L27/06

    摘要: The invention relates to a method of estimating symbols carried by a digital signal that is received by a receiver over a communication channel (5), said symbols being multiplexed or orthogonal frequency sub-carriers. The inventive method comprises the following steps in relation to each symbol carried by the digital signal, consisting in: performing at least two transforms towards the frequency domain (8,9) on a portion of the received signal essentially corresponding to the symbol, said transforms being performed with a determined time lag (10) therebetween: estimating the parameters (r0, r1, . . . , rn, r′0, r′1, . . . , r′n) of the communication channel from pre-determined binary information contained in the digital signal; and estimating the symbol from a combination of the result of each of the transforms performed and the estimated communication channel parameters.

    摘要翻译: 本发明涉及一种估计通过通信信道(5)接收的数字信号承载的符号的方法,所述符号被复用或正交的频率子载波。 本发明的方法包括关于由数字信号承载的每个符号的以下步骤,其包括:在基本上对应于符号的接收信号的一部分上对频域(8,9)执行至少两个变换,所述变换 以其中的确定的时间延迟(10)执行:从预先确定的通信信道估计通信信道的参数(r0,r1,...,rn,r'0,r'1,...,r'n) 包含在数字信号中的二进制信息; 以及从所执行的每个变换的结果和估计的通信信道参数的组合来估计符号。

    Method of accessing resources of a radiocommunication system, mobile terminal and base station for the implementation of the method
    10.
    发明授权
    Method of accessing resources of a radiocommunication system, mobile terminal and base station for the implementation of the method 有权
    访问无线电通信系统资源的方法,移动终端和基站的实现方法

    公开(公告)号:US07454204B2

    公开(公告)日:2008-11-18

    申请号:US10889482

    申请日:2004-07-12

    IPC分类号: H04Q7/20

    摘要: The mobile terminal according to the invention comprises: means for receiving synchronization signals from a base station of a radiocommunication system; means for sending towards the base station requests for access to communication resources, at respective instants clamped with respect to instants of reception of said synchronization signals; means for determining a level of remoteness with respect to the base station; and means for advancing the instants of sending of the requests for access to communication resources, as a function of the level of remoteness determined by the means for determining a level of remoteness with respect to the base station.

    摘要翻译: 根据本发明的移动终端包括:用于从无线电通信系统的基站接收同步信号的装置; 用于在针对所述同步信号的接收时刻被钳位的相应时刻向基站发送对通信资源的访问请求的装置; 用于确定相对于基站的偏远水平的装置; 以及用于根据通过用于确定相对于基站的偏远水平的方法确定的远程水平来推进发送访问通信资源的请求的时刻的手段。