公开(公告)号：US06560270B1

公开(公告)日：2003-05-06

申请号：US09262800

申请日：1999-03-04

申请人： Mark D. Hischke

发明人： Mark D. Hischke

IPC分类号： H04B169

CPC分类号： H04B1/70775

摘要： A method for tuning spread spread spectrum receivers to a frequency of a digital signal within a specified frequency band as the steps of coarse tuning the receiver while a preamble of the digital signal is being received, fine tuning the receiver while the preamble of the digital signal is being received, and demodulating the signal. Preferably, the step of coarse tuning the receiver comprises dividing the specified frequency band into a plurality of first sub-bands, and sequentially measuring a receive signal strength within each of the sub-bands until a receive signal strength is greater than a predetermined threshold. Preferably, the step of fine tuning the receiver comprises the dividing at least one first step-band which is found to have a receive signal strength greater than a predetermined threshold into a plurality of second sub-bands when a receive signal strength is greater than the predetermined threshold, sequentially measuring a receive signal strength within each sub-band so as to determine which second sub-band contains a signal having a receive signal strength above a predetermined threshold, and determining which second sub-band contained the signal with the greatest receive signal strength.

摘要翻译： 一种将扩频扩频接收机调谐到指定频带内的数字信号的频率的方法，作为在接收数字信号的前导码时对接收机进行粗调的步骤，在数字信号的前导码处进行微调 正在接收并解调信号。 优选地，对接收机进行粗调的步骤包括将指定频带划分成多个第一子带，并且顺序地测量每个子带内的接收信号强度，直到接收信号强度大于预定阈值。 优选地，微调接收机的步骤包括：当接收信号强度大于所述接收信号强度时，将被发现具有大于预定阈值的接收信号强度的至少一个第一步进带划分成多个第二子带 按顺序测量每个子带内的接收信号强度，以便确定哪个第二子带包含具有高于预定阈值的接收信号强度的信号，以及确定哪个第二子带包含具有最大接收的信号 信号强度。

公开(公告)号：US06445727B1

公开(公告)日：2002-09-03

申请号：US09436998

申请日：1999-11-10

申请人： Mark Davis ,  Roland Rick ,  Brian Banister

发明人： Mark Davis ,  Roland Rick ,  Brian Banister

IPC分类号： H04B1707

CPC分类号： H04B1/70753 ,  H04B1/70775 ,  H04B2201/70701 ,  H04B2201/70707

摘要： When a mobile communication unit (e.g. a cellular telephone) is powered up, the unit must lock on to a local base station, or “acquire” a base station signal, to enable the user to send and receive calls. To lock on a local base station, the mobile unit must determine the delay at which the base station is sending the pseudo random (PN) code. This process is called the “acquisition.” The current art of acquiring a base station involves collecting a set of samples at a particular code phase, or delay, testing the collected sample, and repeating these steps using another code phase until the correct code phase is found. The present invention discloses a method and apparatus for collecting a set of samples at a particular code phase, and simultaneously testing the collected sample and collecting the next set of samples for another code phase. Using multiple banks, the system resources such as the dwell accumulators and the DSP are used concurrently to reduce the time required to test the phase delays of the short code to lock on to a base station.

摘要翻译： 当移动通信单元（例如，蜂窝电话）上电时，单元必须锁定到本地基站或“获取”基站信号，以使用户能够发送和接收呼叫。 为了锁定本地基站，移动单元必须确定基站发送伪随机（PN）码的延迟。 这个过程称为“收购”。 当前获取基站的技术涉及以特定的码相或采集延迟的方式收集一组样本，测试收集的样本，并使用另一个码相重复这些步骤，直到找到正确的码相。 本发明公开了一种用于在特定代码阶段收集一组样本的方法和装置，并且同时测试收集的样本并收集另一代码阶段的下一组样本。 使用多个存储体，同时使用诸如停留累加器和DSP的系统资源来减少测试短码相位延迟以锁定到基站所需的时间。

公开(公告)号：US06363108B1

公开(公告)日：2002-03-26

申请号：US09283010

申请日：1999-03-31

申请人： Avneesh Agrawal ,  Qiuzhen Zou

发明人： Avneesh Agrawal ,  Qiuzhen Zou

IPC分类号： H04B1707

CPC分类号： H04B1/70758 ,  H04B1/70752 ,  H04B1/70775 ,  H04B1/708 ,  H04B1/7093 ,  H04B2201/7071

摘要： A novel and improved method and apparatus for searching is described. Channel data is despread utilizing a matched filter structure. The in-phase and quadrature amplitudes of the despreading delivered to coherent accumulators to sum for a programmable duration of time. The amplitude accumulations are squared and summed to produce an energy measurement. The energy measurement is accumulated for a second programmable time to perform non-coherent accumulation. The resulting value is used to determine the likelihood of a pilot signal at that offset. Each matched filter structure comprises an N-value shift register for receiving data, a programmable bank of taps to perform despreading and optional Walsh decovering, and an adder structure to sum the resulting filter tap calculations.

摘要翻译： 描述了一种新颖的，改进的搜索方法和装置。 利用匹配的滤波器结构对信道数据进行解扩。 解扩展的同相和正交幅度传递到相干累加器，以在可编程的持续时间内求和。 幅度累积被平方并相加以产生能量测量。 对第二可编程时间累积能量测量以执行非相干累加。 所得到的值用于确定在该偏移处的导频信号的可能性。 每个匹配滤波器结构包括用于接收数据的N值移位寄存器，用于执行解扩和可选的沃尔什解密的抽头的可编程组，以及对所得到的滤波器抽头计算进行求和的加法器结构。

公开(公告)号：US06345045B1

公开(公告)日：2002-02-05

申请号：US09100896

申请日：1998-06-22

申请人： Shuzo Yanagi

发明人： Shuzo Yanagi

IPC分类号： H04B7216

CPC分类号： H04B1/70775

摘要： The CDMA synchronous capture circuit which calculates correlation values by using a part of received data for the detection of the peak position, and then decides an upper temporal peak position where the correlation values are great. The CDMA synchronous capture circuit of the present invention calculates the remaining correlation values, giving priority over the temporal peak position, by using the remaining received data, and finally decides a peak value from the correlation level by adding the above-mentioned two kinds of correlation values.

摘要翻译： CDMA同步捕获电路，通过使用用于检测峰值位置的接收数据的一部分来计算相关值，然后确定相关值很大的上部时间峰值位置。 本发明的CDMA同步捕获电路通过使用剩余的接收数据来计算优先于时间峰值位置的剩余相关值，并且最终通过将上述两种相关性相加来从相关电平确定峰值 价值观。

公开(公告)号：US20010036828A1

公开(公告)日：2001-11-01

申请号：US09828588

申请日：2001-04-05

发明人： Brian K. Butler ,  Haitao Zhang ,  Edward G. Tiedmann JR. ,  Qiuzhen Zou ,  Gilbert C. Sih ,  Avneesh Agrawal

IPC分类号： H04Q007/20

CPC分类号： H04B1/70751 ,  H04B1/7077 ,  H04B1/70775 ,  H04B1/7115 ,  H04B2201/70701 ,  H04B2201/70702 ,  H04W52/0229 ,  Y02D70/40

摘要： A novel and improved method for performing paging is described. In one embodiment of the invention a searcher is used to detect spread spectrum signals. Samples received RF signals are stored in a sample buffer. During standby mode, the samples are gathered during paging slots assigned to the mobile. A set of searches are performed on the samples, and if pilot signals are detected additional demodulation is performed to detect paging messages. The resulting set of demodulation data may be combined to increase detection. After a page message has been detected, additional demodulation resources may be activated to processes more complete page messages, or other information channels. In one embodiment of the invention, the searcher includes a demodulator to perform quick page detection without the use of finger elements to reduce idle mode power consumption.

摘要翻译： 描述了一种用于执行寻呼的新颖和改进的方法。 在本发明的一个实施例中，搜索器用于检测扩频信号。 样本接收的RF信号被存储在样本缓冲器中。 在待机模式期间，在分配给移动台的寻呼时隙期间收集采样。 对样本执行一组搜索，并且如果检测到导频信号，则执行附加解调以检测寻呼消息。 可以组合所得到的解调数据集以增加检测。 在检测到页面消息之后，可以激活附加解调资源以处理更完整的页面消息或其他信息信道。 在本发明的一个实施例中，搜索器包括一个解调器，用于执行快速页面检测，而无需使用手指元件来减少空闲模式功耗。

公开(公告)号：US06243561B1

公开(公告)日：2001-06-05

申请号：US09172068

申请日：1998-10-13

申请人： Brian K. Butler ,  Haitao Zhang ,  Edward G. Tiedemann, Jr. ,  Qiuzhen Zou ,  Gilbert C. Sih ,  Avneesh Agrawal

发明人： Brian K. Butler ,  Haitao Zhang ,  Edward G. Tiedemann, Jr. ,  Qiuzhen Zou ,  Gilbert C. Sih ,  Avneesh Agrawal

IPC分类号： H04L2706

CPC分类号： H04B1/70751 ,  H04B1/7077 ,  H04B1/70775 ,  H04B1/7115 ,  H04B2201/70701 ,  H04B2201/70702 ,  H04W52/0229 ,  Y02D70/40

摘要： A novel and improved method for performing paging is described. In one embodiment of the invention a searcher is used to detect spread spectrum signals. Samples received RF signals are stored in a sample buffer. During standby mode, the samples are gathered during paging slots assigned to the mobile. A set of searches are performed on the samples, and if pilot signals are detected additional demodulation is performed to detect paging messages. The resulting set of demodulation data may be combined to increase detection. After a page message has been detected, additional demodulation resources may be activated to processes more complete page messages, or other information channels. In one embodiment of the invention, the searcher includes a demodulator to perform quick page detection without the use of finger elements to reduce idle mode power consumption.

摘要翻译： 描述了一种用于执行寻呼的新颖和改进的方法。 在本发明的一个实施例中，搜索器用于检测扩频信号。 样本接收的RF信号被存储在样本缓冲器中。 在待机模式期间，在分配给移动台的寻呼时隙期间收集采样。 对样本执行一组搜索，并且如果检测到导频信号，则执行附加解调以检测寻呼消息。 可以组合所得到的解调数据集以增加检测。 在检测到页面消息之后，可以激活附加解调资源以处理更完整的页面消息或其他信息信道。 在本发明的一个实施例中，搜索器包括一个解调器，用于执行快速页面检测，而无需使用手指元件来减少空闲模式功耗。

公开(公告)号：US6154487A

公开(公告)日：2000-11-28

申请号：US78580

申请日：1998-05-14

申请人： Hideshi Murai ,  Hisao Tachika

发明人： Hideshi Murai ,  Hisao Tachika

IPC分类号： H04B1/707 ,  H04B1/7075 ,  H04L7/00 ,  H04L27/30

CPC分类号： H04B1/70775 ,  H04B1/70757 ,  H04B1/708 ,  H04B1/7095

摘要： A spread-spectrum signal receiving method and apparatus in which a correlation operation is performed for obtaining a correlation between a base-band component of a received spread-spectrum signal and a spread code, so as to demodulate the received signal. In the method, a correlation operation between the spread code and the base-band component, and a correlation operation at a timing equal to a timing difference between the spread code and the base-band component in the former correlation operation step, the timing difference being 1/2 of a spread-code interval, are performed. Then, based on results obtained in these correlation operations, a correlation operation result at the timing point where a timing difference between the spread code and the base-band component is less than 1/2 of the spread-code interval, is estimated.

摘要翻译： 一种扩频信号接收方法和装置，其中执行相关操作以获得接收扩频信号的基带分量与扩展码之间的相关性，以解调接收信号。 在该方法中，在前述相关运算步骤中，扩频码与基带分量之间的相关运算以及等于扩频码与基带分量之间的定时差的定时的相关运算， 被执行为+ E，fra 1/2 + EE的扩展码间隔。 然后，基于这些相关运算中得到的结果，扩频码与基带分量之间的定时差小于+ E的定时点的相关运算结果，扩展码的1/2 + EE 间隔，估计。

公开(公告)号：US6094678A

公开(公告)日：2000-07-25

申请号：US656611

申请日：1996-05-31

申请人： Jonathan F. Nethercott ,  Guy A. Cooper ,  Jonathan A. Thompson

发明人： Jonathan F. Nethercott ,  Guy A. Cooper ,  Jonathan A. Thompson

IPC分类号： H04B1/707 ,  H04B7/26 ,  H04L12/24 ,  H04L12/26 ,  H04L12/28 ,  H04L29/06 ,  H04L29/08 ,  H04W84/14 ,  G06F15/16

CPC分类号： H04L29/06 ,  H04B1/707 ,  H04B1/7077 ,  H04B7/2628 ,  H04L41/0226 ,  H04L41/0233 ,  H04B1/70735 ,  H04B1/70775 ,  H04L12/26 ,  H04L43/00 ,  H04L69/08 ,  H04L69/32 ,  H04W84/14

摘要： A first aspect of the invention discloses a local server station for controlling a wireless telecommunications system comprising a plurality of remote server stations and client stations, the local server station comprising: an object based control system maintained at the local server station for controlling the wireless telecommunications system wherein the local server station is connected by way of an interface with at least one control station of the wireless telecommunications system, and a reconfigurable dynamic interface for communication with at least one of the remote servers and/or client stations. A second aspect of the invention discloses a local client station for controlling a wireless telecommunications system comprising a plurality of remote server stations and client stations, each server station comprising an object based control system maintained at the server station for controlling the wireless telecommunications system wherein the server station is connected by way of an interface with at least one control station of the wireless telecommunications system, the local client station comprising: a control system for remotely operating the object based control system at a remote server station for controlling the wireless telecommunications system, and a reconfigurable dynamic interface for communication with at least one of the remote servers and/or client stations.

摘要翻译： 本发明的第一方面公开了一种用于控制包括多个远程服务器站和客户站的无线电信系统的本地服务器站，所述本地服务器站包括：维护在本地服务器站的基于对象的控制系统，用于控制无线电信 系统，其中本地服务器站通过与无线电信系统的至少一个控制站的接口连接，以及用于与远程服务器和/或客户站中的至少一个通信的可重新配置动态接口。 本发明的第二方面公开了一种用于控制包括多个远程服务器站和客户端站的无线电信系统的本地客户站，每个服务器站包括维护在服务器站处的用于控制无线电信系统的基于对象的控制系统，其中， 服务器站通过与无线电信系统的至少一个控制站的接口连接，本地客户端站包括：用于在远程服务器站处远程操作基于对象的控制系统以控制无线电信系统的控制系统， 以及用于与远程服务器和/或客户站中的至少一个进行通信的可重新配置的动态界面。

公开(公告)号：US06028868A

公开(公告)日：2000-02-22

申请号：US907734

申请日：1997-08-08

申请人： Joemmane Chi Cheung Yeung ,  Ian L. Cooper

发明人： Joemmane Chi Cheung Yeung ,  Ian L. Cooper

IPC分类号： G06F9/46 ,  H04B1/707 ,  H04B7/005 ,  H04J3/06 ,  H04J11/00 ,  H04J13/00 ,  H04L9/32 ,  H04L12/24 ,  H04L12/26 ,  H04L12/28 ,  H04L12/403 ,  H04L12/56 ,  H04L12/66 ,  H04L29/06 ,  H04Q11/04 ,  H04W52/00 ,  H04W52/04 ,  H04W52/08 ,  H04W52/24 ,  H04W52/52 ,  H04W56/00 ,  H04W84/14

CPC分类号： H04W56/00 ,  G06F9/546 ,  H04B1/707 ,  H04B1/7077 ,  H04B1/7085 ,  H04J13/00 ,  H04J3/0682 ,  H04L12/26 ,  H04L12/66 ,  H04L29/06 ,  H04L41/0226 ,  H04L41/0233 ,  H04L41/0816 ,  H04L41/22 ,  H04L43/00 ,  H04L69/14 ,  H04L9/065 ,  H04L9/12 ,  H04Q11/04 ,  H04W52/04 ,  H04W52/24 ,  H04W52/52 ,  H04B1/70735 ,  H04B1/7075 ,  H04B1/70775 ,  H04B2001/70706 ,  H04B2201/70702 ,  H04B2201/70706 ,  H04B2201/7071 ,  H04B2201/70711 ,  H04B2201/709709 ,  H04L2209/80 ,  H04L69/08 ,  H04Q2213/1305 ,  H04Q2213/13093 ,  H04Q2213/13098 ,  H04Q2213/13109 ,  H04Q2213/1319 ,  H04Q2213/13196 ,  H04Q2213/13199 ,  H04Q2213/13202 ,  H04Q2213/13204 ,  H04Q2213/13216 ,  H04Q2213/13292 ,  H04Q2213/13296 ,  H04Q2213/13298 ,  H04Q2213/13299 ,  H04Q2213/13335 ,  H04Q2213/13376 ,  H04W52/08 ,  H04W84/14

摘要： A wireless telecommunications system (1) includes a central terminal (10) for transmitting and receiving radio frequency signals to and from a subscriber terminal (20). A downlink communication path is established from a transmitter (200) of the central terminal (10) to a receiver (202) of the subscriber terminal (20). A downlink signal (212) is transmitted from the transmitter (200) to the receiver (202) during setup and operation of the wireless telecommunications system (1). The downlink signal (212) includes an overhead channel (224) having a code synchronization signal (234). The code synchronization signal (234) is capable of adjusting a phase of a transmitter (204) in the subscriber terminal (20). A receiver (206) in the central terminal (10) monitors an uplink signal (214) transmitted by the transmitter (204) in the subscriber terminal and provides changes to the code synchronization signal (234) such that the transmitter (204) is synchronized to the receiver (206). Synchronization of the transmitter (204) in the subscriber terminal (20) to the receiver (206) in the central terminal (10) facilitates establishment of an uplink communication path from the subscriber terminal (20) to the central terminal (10).

摘要翻译： 无线电信系统（1）包括用于向和从用户终端（20）发送和接收射频信号的中央终端（10）。 从中心终端（10）的发射机（200）到用户终端（20）的接收机（202）建立下行链路通信路径。 在无线电信系统（1）的建立和操作期间，从发射机（200）向接收机（202）发送下行链路信号（212）。 下行链路信号（212）包括具有码同步信号（234）的开销信道（224）。 代码同步信号（234）能够调整用户终端（20）中的发射机（204）的相位。 中央终端（10）中的接收机（206）监视由用户终端中的发射机（204）发送的上行链路信号（214），并提供对码同步信号（234）的改变，使得发射机（204）同步 到接收器（206）。 用户终端（20）中的发射机（204）与中心终端（10）中的接收机（206）的同步有助于建立从用户终端（20）到中心终端（10）的上行链路通信路径。

公开(公告)号：US6021331A

公开(公告)日：2000-02-01

申请号：US803601

申请日：1997-02-21

申请人： Guy A. Cooper ,  Jonathan F. Nethercott ,  Jonathan A. Thompson

发明人： Guy A. Cooper ,  Jonathan F. Nethercott ,  Jonathan A. Thompson

IPC分类号： H04B1/707 ,  H04L12/24 ,  H04L12/28 ,  H04L29/06 ,  H04W84/14 ,  H04B7/00

CPC分类号： H04L41/0233 ,  H04B1/707 ,  H04B1/7077 ,  H04L41/0226 ,  H04B1/70735 ,  H04B1/70775 ,  H04W84/14

摘要： The present invention provides a client station and method for controlling a telecommunications system, the telecommunications system including a central station and a server station. The server station is arranged to maintain an object model thereon representing the central station, and is connectable to the central station to send control signals to the central station in accordance with the object model. The client station comprises a communications manager for establishing a connection with the server station to enable communication between the client station and the server station, thereby enabling the client station to manage the object model maintained on the server. The client station has a memory for storing a portion of the object model, and a retrieval means for retrieving from the server station, as required by the client station, additional objects of the object model for expanding the portion of the object model stored in the memory.

摘要翻译： 本发明提供了一种用于控制电信系统的客户端站和方法，所述电信系统包括中心站和服务器站。 服务器站被布置成在其上保持其上表示中心站的对象模型，并且可连接到中心站，以根据对象模型向中心站发送控制信号。 客户站包括通信管理器，用于建立与服务器站的连接，以实现客户站和服务器站之间的通信，从而使得客户端站可以管理服务器上维护的对象模型。 客户站具有用于存储对象模型的一部分的存储器，以及检索装置，用于根据客户站的要求从服务器站检索用于扩展存储在对象模型中的对象模型的部分的对象模型的附加对象 记忆。