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    Path searcher using reconfigurable correlator sets
    51.
    发明申请
    Path searcher using reconfigurable correlator sets 失效
    路径搜索器使用可重构相关器集

    公开(公告)号：US20040047439A1

    公开(公告)日：2004-03-11

    申请号：US10412475

    申请日：2003-04-11

    Applicant: InterDigital Technology Corporation

    Inventor： John David Kaewell JR. ,  Timothy Berghuis ,  Jan Meyer ,  Peter Bohnhoff ,  Alexander Reznik ,  Edward L. Hepler ,  Michael Koch ,  William C. Hackett ,  David S. Bass ,  Steven Ferrante

    IPC: H04B001/10

    CPC classification number: H04B1/7093 ,  H04B1/7075 ,  H04B1/7077 ,  H04B1/709 ,  H04B1/7113 ,  H04B1/7117 ,  H04B1/712 ,  H04B7/0491 ,  H04B2201/7071 ,  H04B2201/70711

    Abstract: A Node-B/base station has a path searcher and at least one antenna for receiving signals from users. The path searcher comprises a set of correlators. Each correlator correlates an inputted user code with an inputted antenna output of the at least one antenna. An antenna controller selectively couples any output of the at least one antenna to an input of each correlator of the set of correlators. A code phase controller selects a user code for input into the set of correlators. Each delay of a series of delays delays the selected user code by a predetermined amount and each correlator of the set of correlators receives a different code phase delay of the selected user code. A sorter and path selector sorts the output energy levels of each correlator of the sets of correlators and produces a path profile for a user based on the sorted output energy levels.

    Abstract translation: 节点B /基站具有路径搜索器和用于从用户接收信号的至少一个天线。 路径搜索器包括一组相关器。 每个相关器将输入的用户代码与至少一个天线的输入的天线输出相关联。 天线控制器选择性地将至少一个天线的任何输出耦合到该组相关器的每个相关器的输入端。 代码相位控制器选择用于输入到该组相关器的用户代码。 一系列延迟的每个延迟将所选择的用户码延迟预定量，并且该组相关器的每个相关器接收所选用户码的不同码相位延迟。 分拣机和路径选择器对相关器组的每个相关器的输出能量进行排序，并且基于排序的输出能级产生用户的路径简档。

    Dynamic matched filter bank and its application in multi-channel spread spectrum communication systems
    53.
    发明申请
    Dynamic matched filter bank and its application in multi-channel spread spectrum communication systems 失效
    动态匹配滤波器组及其在多通道扩频通信系统中的应用

    公开(公告)号：US20040008759A1

    公开(公告)日：2004-01-15

    申请号：US10193599

    申请日：2002-07-11

    Inventor： George L. Yang

    IPC: H04B001/707 ,  H04L027/06

    CPC classification number: H04B1/7093 ,  H04B2001/70935 ,  H04B2201/7071

    Abstract: A dynamic matched filter bank consists of a plurality of matched filters with either the reference signal for each matched filter changes with the time or the input signal to a matched filter is the received signal modified by a different way for a different matched filter. A receiver employed a set of dynamic matched filter banks in a multi-channel spread spectrum communication system consists of a signal register, a block PN generator, a plurality of spreading sequence generators, a plurality of register arrays, a plurality of multiplier arrays, a plurality of matched filters, a plurality of signal combiners, and a controller. The block PN generator generates a section of PN sequence at the end of every symbol period with feedback logic to shift a block of chips each time. A register array captures each section of PN sequence from the block PN generator and delays it for a symbol period. The rest register arrays are in cascade and delay the section of sequence at each of their inputs by one symbol period. The signal register generates a moving section of the received signal. Each of the multiplier arrays multiplies each moving section of the received signal by a section of PN sequence from either the block PN generator or one of the register arrays to provide a input signal to a corresponding matched filter. Each of the matched filter is to find the correlation between the section of its input signal and the section of its reference signal, which is a spreading sequence from a corresponding spreading sequence generator. Each of the signal combiners will combine the components from corresponding matched filters. The controller will monitor the signals from all matched filters and all signal combiners, extract necessary information, and generate various control signals.

    Abstract translation: 动态匹配滤波器组由多个匹配滤波器组成，每个匹配滤波器的参考信号随着时间而变化，或者匹配滤波器的输入信号是用不同匹配滤波器以不同方式修改的接收信号。 一种在多通道扩频通信系统中使用一组动态匹配滤波器组的接收机，包括信号寄存器，块PN发生器，多个扩频序列发生器，多个寄存器阵列，多个乘法器阵列， 多个匹配滤波器，多个信号组合器和控制器。 块PN发生器在每个符号周期结束时产生一段PN序列，其中反馈逻辑每次移动一块芯片。 寄存器阵列从块PN发生器捕获PN序列的每个部分，并将其延迟一个符号周期。 其余的寄存器阵列是级联的，并且将每个输入端的序列部分延迟一个符号周期。 信号寄存器产生接收信号的移动部分。 每个乘法器阵列将接收信号的每个移动部分乘以来自块PN发生器或寄存器阵列之一的PN序列的一部分，以向相应的匹配滤波器提供输入信号。 匹配滤波器中的每一个用于找出其输入信号的部分与其参考信号的部分之间的相关性，该参考信号是来自对应的扩展序列发生器的扩展序列。 每个信号组合器将组合来自相应匹配滤波器的分量。 控制器将监控来自所有匹配滤波器和所有信号组合器的信号，提取必要的信息，并产生各种控制信号。

    Configurable terminal engine
    55.
    发明申请
    Configurable terminal engine 有权
    可配置终端引擎

    公开(公告)号：US20030138030A1

    公开(公告)日：2003-07-24

    申请号：US10212190

    申请日：2002-08-02

    Inventor： Stratis Gavnoudias ,  Joseph Boccuzzi ,  Alexander Jacques ,  Raj M. Misra ,  Yan Zhang ,  Avi Silverberg ,  Richard Rizza ,  Yosef Nacson

    IPC: H04B001/707 ,  H04L027/30 ,  H04L027/06 ,  H03D001/00 ,  H04L005/16

    CPC classification number: H04B1/7075 ,  H04B1/707 ,  H04B1/7093 ,  H04B1/7115 ,  H04B2201/7071

    Abstract: A configurable cellular terminal engine (CTE) in accordance with an exemplary embodiment of this invention is configurable by an external agent (e.g., microcontroller, DSP, or state machine) to suit the particular requirements of different spread spectrum systems. In an exemplary embodiment, the CTE comprises on a chipset a modem unit and a channel codec unit. The modem unit has a front end unit for coupling to an antenna; a matched filter searchers unit coupled at least to the front end unit; a searchers unit coupled to at least the front end unit; a finger processing unit coupled to the front end unit; a parameter estimation processor unit coupled to at least the finger processing unit and the searchers unit; and a transmitter unit. The channel codec unit has a channel decoder unit coupled at least to the finger processing unit; and a channel encoder coupled at least to the transmitter unit.

    Abstract translation: 根据本发明的示例性实施例的可配置蜂窝终端引擎（CTE）可以由外部代理（例如，微控制器，DSP或状态机）来配置，以适应不同扩频系统的特定要求。 在示例性实施例中，CTE在芯片组上包括调制解调器单元和信道编解码器单元。 调制解调器单元具有用于耦合到天线的前端单元; 匹配滤波器搜索单元，至少耦合到前端单元; 至少与前端单元耦合的搜索单元; 连接到前端单元的手指处理单元; 耦合到至少手指处理单元和搜索单元的参数估计处理器单元; 和发射机单元。 信道编解码器单元具有至少耦合到手指处理单元的信道解码器单元; 以及至少耦合到所述发射机单元的信道编码器。

    Acquisition circuit for low chip rate option for mobile telecommunication system
    56.
    发明申请
    Acquisition circuit for low chip rate option for mobile telecommunication system 失效
    移动通信系统低码率率采购电路

    公开(公告)号：US20030072357A1

    公开(公告)日：2003-04-17

    申请号：US10267512

    申请日：2002-10-09

    Applicant: InterDigital Technology Corporation

    Inventor： Alpaslan Demir ,  Fatih M. Ozluturk

    IPC: H04B001/707

    CPC classification number: H04B1/708 ,  H04B1/70735 ,  H04B1/7077 ,  H04B1/7093 ,  H04B2201/7071

    Abstract: A User Equipment (UE) has a circuit that performs the acquisition for the low chip rate option of the Universal Mobile Telecommunication System (UMTS) Time Division Duplex (TDD) standard as formulated by the Third Generation Partnership Project (3GPP). The present invention implements the detection of the basic SYNC code; the determination of the midamble used and the detection of the superframe timing based on SYNC code modulation sequence. This enables reading of a full Broadcast Channel (BCH) message.

    Abstract translation: 用户设备（UE）具有执行由第三代合作伙伴计划（3GPP）制定的通用移动电信系统（UMTS）时分双工（TDD）标准的低码片速率选项的获取的电路。 本发明实现了基本SYNC码的检测; 使用的midamble的确定和基于SYNC码调制序列的超帧定时的检测。 这使得能够读取完整的广播信道（BCH）消息。

    Method for controlling the operation of a positioning receiver, and an electronic device
    58.
    发明申请
    Method for controlling the operation of a positioning receiver, and an electronic device 审中-公开
    用于控制定位接收器的操作的方法和电子设备

    公开(公告)号：US20030002564A1

    公开(公告)日：2003-01-02

    申请号：US10156645

    申请日：2002-05-24

    Applicant: Nokia Corporation

    Inventor： Samuli Pietila ,  Harri Valio

    IPC: H04B015/00 ,  H04K001/00 ,  H04L027/30

    CPC classification number: G01S19/29 ,  G01S19/22 ,  H04B1/7075 ,  H04B1/709 ,  H04B2201/7071

    Abstract: The invention relates to a method for controlling the operation of a receiver. In the method, at least one spread spectrum modulated signal is received on at least two receiving channels, and a reference signal is formed on said at least two receiving channels by using a reference code corresponding to the code used in the modulation of the signal to be received. Further, in the method, the received signal is correlated with the reference signal. In the receiver, a set of correlators is used, and for at least one correlator of said set of correlators, a receiving channel is selected, wherein said at least one correlator is used in the correlation of the signal received on the receiving channel with the corresponding reference signal. The invention further relates to an electronic device and a wireless communication device comprising a receiver for receiving at least one spread spectrum modulated signal on at least two receiving channels, means for forming a reference code corresponding to the code used in the modulation of a signal to be received, means for forming a reference signal by using said reference code, and means for correlating the received signal with the reference signal. Said means for performing the correlation comprise a set of correlators and means for selecting at least one correlator from said set of correlators to be used on one of said at least two receiving channels.

    Abstract translation: 本发明涉及一种用于控制接收机的操作的方法。 在该方法中，在至少两个接收信道上接收至少一个扩频调制信号，并且通过使用对应于在信号调制中使用的码的参考码在所述至少两个接收信道上形成参考信号 被接收。 此外，在该方法中，接收信号与参考信号相关。 在接收机中，使用一组相关器，并且对于所述一组相关器的至少一个相关器，选择接收信道，其中所述至少一个相关器用于在接收信道上接收的信号与 相应的参考信号。 本发明还涉及一种电子设备和无线通信设备，其包括用于在至少两个接收信道上接收至少一个扩频调制信号的接收机，用于形成对应于在信号调制中使用的代码的参考码的装置， 被接收，用于通过使用所述参考码形成参考信号的装置，以及用于使接收信号与参考信号相关的装置。 用于执行相关的所述装置包括一组相关器和用于从所述至少两个接收信道中的一个上使用的所述相关器组中选择至少一个相关器的装置。

    Method of controlling initial power ramp-up in a CDMA system by using short codes
    59.
    发明授权
    Method of controlling initial power ramp-up in a CDMA system by using short codes 有权
    通过使用短码来控制CDMA系统中的初始功率提升的方法

    公开(公告)号：US06490462B2

    公开(公告)日：2002-12-03

    申请号：US10086324

    申请日：2002-03-01

    Applicant: Fatih M. Ozluturk ,  Gary R. Lomp

    Inventor： Fatih M. Ozluturk ,  Gary R. Lomp

    IPC: A04Q720

    CPC classification number: H04W52/36 ,  H04B1/707 ,  H04B1/7075 ,  H04B1/70753 ,  H04B1/70755 ,  H04B1/70758 ,  H04B1/7077 ,  H04B1/708 ,  H04B7/2628 ,  H04B2201/70701 ,  H04B2201/70702 ,  H04B2201/70703 ,  H04B2201/7071 ,  H04W52/367 ,  H04W52/50 ,  H04W52/60

    Abstract: A method of controlling transmission power during the establishment of a channel in a CDMA communication system utilizes the transmission of a short code from a subscriber unit to a base station during initial power ramp-up. The short code is a sequence for detection by the base station which has a much shorter period than a conventional spreading code. The ramp-up starts from a power level that is lower than the required power level for detection by the base station. The subscriber unit quickly increases transmission power while repeatedly transmitting the short code until the signal is detected by the base station. Once the base station detects the short code, it sends an indication to the subscriber unit to cease increasing transmission power. The use of short codes limits power overshoot and interference to other subscriber units and permits the base station to quickly synchronize to the spreading code used by the subscriber unit.

    Abstract translation: 在CDMA通信系统中建立信道期间控制发射功率的方法利用在初始功率提升期间从用户单元向基站传输短码。 短码是用于基站检测的序列，其具有比常规扩展码短得多的周期。 斜坡上升从低于基站检测所需功率电平的功率电平开始。 用户单元快速增加发射功率，同时重复发送短码直到基站检测到信号。 一旦基站检测到短码，它就向用户单元发送指示，以停止增加发射功率。 使用短码限制了其他用户单元的功率过冲和干扰，并允许基站快速同步到用户单元使用的扩展码。

    Generic finger architecture for spread spectrum applications
    60.
    发明授权
    Generic finger architecture for spread spectrum applications 有权
    通用手指架构用于扩频应用

    公开(公告)号：US06459883B2

    公开(公告)日：2002-10-01

    申请号：US09920094

    申请日：2001-07-31

    Applicant: Ravi Subramanian ,  Keith Rieken ,  Uma Jha ,  David M. Holmes ,  Joel D. Medlock ,  Murali Krishnan

    Inventor： Ravi Subramanian ,  Keith Rieken ,  Uma Jha ,  David M. Holmes ,  Joel D. Medlock ,  Murali Krishnan

    IPC: H04B1700

    CPC classification number: H04B1/7115 ,  H04B1/7117 ,  H04B2201/7071 ,  H04L2027/0026

    Abstract: A rake receiver in accordance with an exemplary embodiment of this invention is configurable by an external agent (e.g., microcontroller, DSP, or state machine) to suit the particular requirements of different spread spectrum systems. In an exemplary embodiment, the receiver includes multiple fingers. Each finger includes a plurality of generic despreaders/descramblers, a plurality of generic dechannelizers coupled to the despreaders/descramblers, and at least one timing estimation controller coupled to the despreaders/descramblers. The finger also includes at least one phase estimation controller, at least one frequency estimation controller, and at least one energy estimation controller all coupled to the generic dechannelizers.

    Abstract translation: 根据本发明的示例性实施例的耙式接收机可由外部代理（例如，微控制器，DSP或状态机）来配置，以适应不同扩频系统的特定要求。 在示例性实施例中，接收机包括多个指状物。 每个手指包括多个通用去扩展器/解扰器，耦合到解扩器/解扰器的多个通用去通道化器，以及耦合到解扩器/解扰器的至少一个定时估计控制器。 手指还包括至少一个相位估计控制器，至少一个频率估计控制器和至少一个能量估计控制器，所述至少一个能量估计控制器全部耦合到通用去通道分配器。

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