公开(公告)号：WO01084734A2

公开(公告)日：2001-11-08

申请号：PCT/JP2001/003564

申请日：2001-04-25

IPC: H03H17/02 ,  G06F17/15 ,  H04B1/707

CPC classification number: H04B1/7093 ,  G06F17/15 ,  H04B1/7117 ,  H04B1/712 ,  H04B2201/70711

Abstract: A matched filter requiring no high-speed processor and which consumes less power is disclosed. Partial filters 301 - 30N obtained by dividing number of matched filter taps by N are provided with a controller 341 for controlling which partial filters are enabled. The controller 341 is supplied with maximum amount of delay of an input signal and with symbol timing. On the basis of the maximum amount of delay, the controller 341 enables only the minimum number of partial filters 301 - 30n that are capable of executing an amount of computation that is required in one symbol period. The enabled partial filters are used multiple number of times per symbol period and the output, each time, integrated sample by sample. Since the disabled partial filters will not operate, it is possible to reduce power consumption and computation time.

Abstract translation: 公开了一种不需要高速处理器并且消耗较少功率的匹配滤波器。 通过将匹配的滤波器抽头数除以N而获得的部分滤波器301〜30N设置有用于控制哪些部分滤波器被使能的控制器341。 控制器341被提供输入信号和符号定时的最大量的延迟。 基于最大延迟量，控制器341仅使能能够执行在一个符号周期中所需的计算量的最小数量的部分滤波器301〜30n。 启用的部分滤波器每个符号周期使用多次，每次输出，按样本进行采样。 由于禁用的部分滤波器不工作，因此可以降低功耗和计算时间。

公开(公告)号：WO01058040A2

公开(公告)日：2001-08-09

申请号：PCT/DE2001/000440

申请日：2001-02-02

IPC: H04J3/00 ,  H04B1/707 ,  H04B7/26 ,  H04Q7/38 ,  H04B7/00

CPC classification number: H04B1/70752 ,  H04B1/70751 ,  H04B1/7093 ,  H04B1/7095

Abstract: The invention relates to a device for carrying out search procedures, comprising a memory for storing a digital receive data sequence and a memory in which a predetermined correlation data sequence is stored. A correlator device comprises a first section (A1) in which partial sequences of the receive data sequence are correlated with partial sequences of the correlation data sequence. In the second section (A2), an adjustable number (K) of partial sequence correlation results (OUT1) are added up to produce an accumulated correlation result (OUT2).

Abstract translation: 一种用于执行搜索程序装置包括：用于存储数字接收的数据序列的存储器，并且其中的预定相关性的数据序列被存储的存储器。 相关器装置包括第一部分（A1），其中所接收的数据序列的部分序列与该相关数据序列的部分序列相关的。 在第二部分（A2）序列元件的相关结果（OUT1），以累积相关结果（OUT2）的可调节的数量K被添加。

公开(公告)号：WO01045290A1

公开(公告)日：2001-06-21

申请号：PCT/US2000/033902

申请日：2000-12-15

IPC: H04B1/707

CPC classification number: H04B1/70751 ,  H04B1/70752 ,  H04B1/70775 ,  H04B1/7093 ,  H04B1/7095

Abstract: A spread-spectrum sliding matched-filter searcher system comprises a partial matched-filter (201) that receives the input spread-spectrum signal (101). The searcher matches samples of the input signal with a tap length m of the reference code (111) and produces a first correlation value. The first correlation value is compared to a first threshold. When it equals or exceeds the first threshold, the first correlation value is integrated (202) to produce a second correlation value. This second value is compared (203) with a second threshold, which if met signifies the detection of the multi-path signal. The process is repeated until all signification multi-path signals are detected. The design of the present invention is flexible in nature because the searcher can be programmed to act like a matched-filter, a correlator, or a combination of both while significantly improving the search time and reducing the amount of hardware and complexity characteristic of a matched-filter.

Abstract translation: 扩频滑动匹配滤波器搜索器系统包括接收输入扩频信号（101）的部分匹配滤波器（201）。 搜索者将参考码（111）的抽头长度m与输入信号的样本相匹配并产生第一相关值。 将第一相关值与第一阈值进行比较。 当等于或超过第一阈值时，第一相关值被积分（202）以产生第二相关值。 将该第二值与第二阈值进行比较（203），如果满足表示多径信号的检测。 重复该过程，直到检测到所有表征多路径信号。 本发明的设计本质上是灵活的，因为搜索器可以被编程为像匹配滤波器，相关器或两者的组合一样起作用，同时显着地改善搜索时间并减少硬件的数量和匹配的复杂度特性 -过滤。

公开(公告)号：WO01043300A1

公开(公告)日：2001-06-14

申请号：PCT/EP2000/011828

申请日：2000-11-27

IPC: H04B1/707

CPC classification number: H04B1/7093 ,  H04J13/0022

Abstract: A method of, and receiver for, recovering data bits from a spread spectrum signal, in which a digitally sampled chip sequence is derived from a received spread spectrum signal, a matched filter (34) filters the digitally sampled chip sequence in a matched filter, a circuit (36) obtains a running average of the output from the matched filter over successive bit periods, which of the matched filter output samples corresponds to the maximum value in the running average and determines the sign of the sample in a stage of the matched filter synchronised with maximum value and assigns a data bit value in accordance with the sign.

Abstract translation: 一种用于从扩展频谱信号恢复数据比特的方法和接收机，其中从接收的扩频信号导出数字采样的码片序列，匹配滤波器（34）对匹配滤波器中的数字采样码片序列进行滤波， 电路（36）在连续的位周期内从匹配滤波器获得输出的运行平均值，哪个匹配的滤波器输出采样对应于运行平均值中的最大值，并且在匹配的阶段中确定样本的符号 滤波器与最大值同步，并根据符号分配数据位值。

公开(公告)号：WO01028120A1

公开(公告)日：2001-04-19

申请号：PCT/IB2000/001456

申请日：2000-10-09

IPC: H03H17/02 ,  H04B1/7093 ,  H04B1/707

CPC classification number: H04B1/7093 ,  H03H17/0254

Abstract: A mobile station is provided for receiving a spread spectrum, code division transmission from at least one transmitter, such as a base station. The mobile station contains a receiver for outputting data samples, and further contains a multi-tap ring matched filter. The ring matched filter is constructed to have first circuitry for storing an individual one of a received data sample into an individual one of a plurality storage registers such that an active data sample that has been stored for the longest period of time is overwritten with a most recently received data sample. The ring matched filter is further constructed to have second circuitry for serially shifting coefficient bits of at least one multi-bit spreading code relative to the storage registers for sequentially and simultaneously correlating the at least one multi-bit spreading code with a plurality of corresponding stored data samples, while significantly reducing power consumption by limiting state changes of flip-flops.

Abstract translation: 移动台被提供用于从诸如基站的至少一个发射机接收扩频，码分多址传输。 移动站包含用于输出数据采样的接收机，并且还包含多抽头环匹配滤波器。 环形匹配滤波器被构造成具有第一电路，用于将接收到的数据样本中的单独一个存储到多个存储寄存器中的单独一个中，使得已经存储了最长时间段的活动数据样本被最多地覆盖 最近收到的数据样本。 环形匹配滤波器还被构造成具有用于相对于存储寄存器串行地移位至少一个多位扩展码的系数比特的第二电路，用于顺序地并且同时地将至少一个多比特扩展码与多个对应的存储 数据样本，同时通过限制触发器的状态变化显着降低功耗。

公开(公告)号：WO01028118A1

公开(公告)日：2001-04-19

申请号：PCT/FI2000/000881

申请日：2000-10-12

IPC: H03H17/00 ,  H03H17/02 ,  H04B1/707

CPC classification number: H04B1/7093

Abstract: The invention relates to a matched filter (6-10) for implementing the correlation of an input signal (6-21) and a reference signal (6-27). The matched filter (6-10) according to the invention comprises N parallel M-sample long shift registers for receiving an equal number of input signals (6-21) at the sampling frequency of the input signal (6-21), wherein N>/=2; first means (6-22) for storing K M-sample long reference signals (6-27), wherein K>/=1; multiplexing means for applying one input signal (6-21) and one reference signal (6-27) at a time from said shift registers and said storage means to correlation calculation means (6-50) by applying alternately at least one combination of the input signals (6-21) and the reference signals (6-27) to the calculation means (6-50); calculation means (6-50) for calculating the correlation time-dividedly for each combination of an input signal (6-21) and a reference signal (6-27) so that correlation results calculated from different signals appear at the output of the calculation means (6-50) as a sequence.

Abstract translation: 本发明涉及一种用于实现输入信号（6-21）和参考信号（6-27）的相关性的匹配滤波器（6-10）。 根据本发明的匹配滤波器（6-10）包括N个并行M采样长移位寄存器，用于以输入信号（6-21）的采样频率接收等量的输入信号（6-21），其中N > / = 2; 用于存储K M个样本长参考信号（6-27）的第一装置（6-22），其中K> / = 1; 多路复用装置，用于一次将所述移位寄存器和所述存储装置的一个输入信号（6-21）和一个参考信号（6-27）应用于相关计算装置（6-50），交替地应用 输入信号（6-21）和参考信号（6-27）到计算装置（6-50）; 计算装置（6-50），用于针对输入信号（6-21）和参考信号（6-27）的每个组合对时间分割计算相关性，使得从不同信号计算的相关结果出现在计算的输出 表示（6-50）作为序列。

公开(公告)号：WO01003293A1

公开(公告)日：2001-01-11

申请号：PCT/US2000/015508

申请日：2000-06-07

IPC: G06F17/15 ,  H03H17/02 ,  H04B1/7075 ,  H04B1/7093

CPC classification number: G06F17/15 ,  H03H17/0254 ,  H04B1/70751 ,  H04B1/70752 ,  H04B1/7093 ,  H04B2201/70707

Abstract: A technique for correlating a stream of signal sample values with a predetermined binary code having a plurality of binary code bits is disclosed. The technique is realized by forming precombinations of groups of the signal sample values in the stream, and then temporally ordering the precombinations. Particular ones of the temporally ordered precombinations are selected based upon particular combinations of the plurality of binary code bits. The particular selected ones of the temporally ordered precombinations are then combined to form a correlation.

Abstract translation: 公开了一种用于将信号采样值流与具有多个二进制码位的预定二进制码进行相关的技术。 该技术通过在流中形成信号样本值的组的预组合，然后在时间上排序预组合来实现。 基于多个二进制码位的特定组合来选择时间有序的预组合中的特定的组合。 然后将时间有序的预组合中的特定选定的组合形成相关性。

公开(公告)号：WO00041338A1

公开(公告)日：2000-07-13

申请号：PCT/US1999/031164

申请日：1999-12-29

IPC: H04B1/7093 ,  H04B1/7115 ,  H04B3/06 ,  H04B7/005 ,  H04B7/26 ,  H04L25/02

CPC classification number: H04B1/7115 ,  H04B1/7093 ,  H04L25/0204

Abstract: A receiving apparatus comprises a receiver receiving signals via multiple propagation paths having different propagation delays and converting the signals to digital samples for processing. A channel estimator is operatively coupled to the receiver for correlating periodically selected groups of the digital samples corresponding to known symbols and periodically producing numerical estimates related to amplitudes and phases of the delayed propagation paths. A filter system filters the numerical estimates using filters periodically adapted to center frequencies of variations of the numerical estimates. A data decoder is operatively coupled to the receiver and the filter system for decoding data using the filtered estimates and the digital data.

Abstract translation: 一种接收装置，包括经由具有不同传播延迟的多个传播路径接收信号的接收机，并将该信号转换成数字样本进行处理。 信道估计器可操作地耦合到接收机，用于对应于已知符号的周期性选择的数字样本组，并周期性地产生与延迟传播路径的幅度和相位有关的数值估计。 滤波器系统使用周期性地适应于数值估计的变化中心频率的滤波器来过滤数值估计。 数据解码器可操作地耦合到接收器和滤波器系统，用于使用经滤波的估计和数字数据对数据进行解码。

公开(公告)号：WO00019644A1

公开(公告)日：2000-04-06

申请号：PCT/US1999/022080

申请日：1999-09-23

IPC: H04B1/707 ,  H04B1/7085 ,  H04B1/709 ,  H04B1/7093 ,  H04B1/7115 ,  H04B1/7183 ,  H04B7/005 ,  H04B17/00

CPC classification number: H04W52/243 ,  H04B1/707 ,  H04B1/7085 ,  H04B1/709 ,  H04B1/7093 ,  H04B1/7115 ,  H04B1/7183 ,  H04B2201/70707 ,  H04W52/24 ,  H04W52/245 ,  H04W52/287

Abstract: The present invention provides a method and apparatus for adaptive processing in a communication system receiver. The adaptive processing facilitates power savings and permits enhanced performance when necessary. This extends a receiver's operation time in receivers that operate on batteries, such as in cordless telephones or cellular telephones. A receiver adopting the principles of the present invention evaluates the characteristics and dynamics of an incoming signal, and based on the quality of the incoming signal, adjusts various aspects of the receiver such as the on-time correlators and analog to digital converters, the timing circuits, the despread equalizers, and the combiner. If the receiver comprises a receiver operation in accordance with GSM, the receiver may cycle the MLSE detection algorithms or cross correlation may be done over fewer data symbols.

Abstract translation: 本发明提供了一种用于通信系统接收机中的自适应处理的方法和装置。 自适应处理有助于功率节省并且在必要时允许增强的性能。 这将接收机的操作时间扩展到在电池操作的接收器中，例如在无绳电话或蜂窝电话中。 采用本发明原理的接收机评估输入信号的特性和动力学，并且基于输入信号的质量，调整接收机的各个方面，例如接通时间相关器和模数转换器，定时 电路，解扩均衡器和组合器。 如果接收机包括根据GSM的接收机操作，则接收机可以循环MLSE检测算法，或者可以通过较少数据符号进行互相关。

公开(公告)号：WO99009656A2

公开(公告)日：1999-02-25

申请号：PCT/EP1998/004434

申请日：1998-07-16

IPC: H04B14/00 ,  H04J11/00 ,  H04L5/02 ,  H04L23/02 ,  H04B

CPC classification number: H04B1/7093

Abstract: The method relates to the transmission of messages in which a number of L components (m0,...,. mL-1) are coded by means of orthogonal functions to a signal (s(t)), and in which approximations of hermitic functions are used as orthogonal functions. The invention further relates to the circuit layout in order to carry out said method.

Abstract translation: 本发明涉及一种方法，用于发送消息，其中，数L个分量的（M0，...，ML-1）的正交功能的装置的信号（S（t））的要被编码的，其中所用的厄密共轭函数的正交函数近似 是。 本发明还涉及到电路安排执行该方法。