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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
CPC分类号： H04W72/1236 , H04L2012/5607 , H04L2012/5651 , H04L2012/5675 , H04L2012/5679 , H04W72/1242 , H04W72/1252
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。
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2.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。
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公开(公告)号：US06904107B1
公开(公告)日：2005-06-07
申请号：US09402955
申请日：1998-04-10
CPC分类号： H04L25/03 , H04B1/76 , H04B7/0851 , H04B7/0854
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 ）。
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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。
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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
CPC分类号： H04L25/0242 , H04B1/76 , H04L25/0224
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）。
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6.发明授权Method of transmission, with the possibility of correcting bursts of errors, of information messages and encoding and decoding devices for implementing this method 失效传输方法，具有校正突发错误的可能性，信息消息和用于实现该方法的编码和解码装置
公开(公告)号：US4754458A
公开(公告)日：1988-06-28
申请号：US862828
申请日：1986-05-13
CPC分类号： H03M13/151
摘要： A method and apparatus for transmitting information while correcting bursts of errors is described. The technique uses a calculation of coefficients of code words by obtaining polynomials from the factorization over a field of elements. On transmitting, a product of a plurality of polynomials is obtained and this product is divided by another polynomial to obtain coefficients. On reception, a reciprocal of the polynomial is used and coefficients are also calculated. By summing the most significant coefficients of the polynomials, corrected bits of the message are obtained.
摘要翻译： 描述了在校正错误突发的同时发送信息的方法和装置。 该技术通过从元素领域的因式分解中获得多项式来使用码字系数的计算。 在发送时，获得多个多项式的乘积，并将该乘积除以另一个多项式以获得系数。 在接收时，使用多项式的倒数，并且还计算系数。 通过求和多项式的最高有效系数，获得消息的校正位。
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7.发明授权Modulating a digital signal with narrow spectrum and substantially constant envelope 失效调制具有窄频谱和基本恒定包络的数字信号公开(公告)号：US06868126B1
公开(公告)日：2005-03-15
申请号：US09582127
申请日：1998-12-21
CPC分类号： H04L27/2017 , H04L25/03834
摘要： A transmission signal (S) resulting from modulation of a digital data signal by a modulation function dependent on time t, the data signal being formed of a series of bits (bk) each identified by its rank k and having a duration T, the transmission signal (S) consisting of a summation indexed to the rank k of the product of the complex constant j to the power k, of the modulation function (h(t−kT) and of an input signal. The input signal F(k) being a function of the data signal (bk), the modulation function h(t−kT) is a Gaussian function of time t.
摘要翻译： 由数字数据信号通过调制函数（依赖于时间t）调制而产生的传输信号（S），数据信号由一系列位（bk）形成，每一位由其k级标识并具有持续时间T，传输 由调制函数（h（t-kT）和输入信号的复数常数j与功率k的乘积的等级k组合的信号（S），输入信号F（k） 作为数据信号（bk）的函数，调制函数h（t-kT）是时间t的高斯函数。
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公开(公告)号：US5398247A
公开(公告)日：1995-03-14
申请号：US39729
申请日：1993-03-30
CPC分类号： H04J3/1647 , H04B7/2643
摘要： According to the method, a physical transmission channel is split into a plurality of logic channels which may be dedicated to different communications. Each logic channel consists of time slots having a same duration and the same rank in successive frames of constant length. At least one of the logic channels is split into a plurality of sub-channels dedicated to different communications. Groups of k successive time slots (k being an integer greater than 1) are allocated to each logic sub-channel. The groups are time distributed in a regular way and k is so selected that N be different from (m.k+1) where m is an integer and N is the number of time intervals necessary for reconstructing an information block.
摘要翻译： 根据该方法，物理传输信道被分成多个可专用于不同通信的逻辑信道。 每个逻辑信道由具有相同持续时间的时隙和在恒定长度的连续帧中的相同等级组成。 至少一个逻辑信道被分成专用于不同通信的多个子信道。 k个连续时隙的组（k是大于1的整数）被分配给每个逻辑子信道。 这些组以规则的方式进行时间分配，并且k被选择为N与（m.k + 1）不同，其中m是整数，N是重建信息块所需的时间间隔的数量。
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9.发明授权
公开(公告)号：US5128925A
公开(公告)日：1992-07-07
申请号：US508575
申请日：1990-04-13
CPC分类号： H04W64/00 , H04J3/0682
摘要： A process for the pseudo-synchronization of a time multiplexing communication network comprises the steps of measuring a time shift TM in reception by a mobile station of synchronization signals from first and second fixed stations, measuring the propagation times t1 and t2 of a synchronization signal between the fixed stations and the mobile station, and calculating the transmission time shift TR between the synchronization signals in accordance with the relationship TR=TM+t1 -t2. The pseudo-synchronization process can also be employed for geographically locating a mobile station.
摘要翻译： 用于时间复用通信网络的伪同步的过程包括以下步骤：测量移动台接收来自第一和第二固定站的同步信号的时移TM，测量第一和第二固定站之间的同步信号的传播时间t1和t2， 固定站和移动站，并根据关系TR = TM + t1 -t2计算同步信号之间的传输时间移位TR。 伪同步过程也可用于地理位置定位移动台。
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