公开(公告)号：US06324205B1

公开(公告)日：2001-11-27

申请号：US09566907

申请日：2000-05-09

Applicant: Mohit K. Prasad

Inventor： Mohit K. Prasad

IPC: H04B169

CPC classification number: H04J13/10 ,  H04B1/707 ,  H04B2201/70711 ,  H04J13/0029

Abstract: A scalable method and system for generating a 3X long code sequence for use in a CDMA communication system uses Gold sequences. A preferred pair of 1X long code sequences both running at 1.2288 Mchips/s are used to generate the 3X sequence. The 3X sequence so generated is a pseudo-random sequence with well defined auto-correlation and cross-correlation properties. Because the method is scalable it is easily scaled to generate other long code e.g. 6X, 9X, and 12X sequences.

Abstract translation: 用于生成用于CDMA通信系统的3X长码序列的可扩展方法和系统使用Gold序列。 使用以1.2288 Mchips / s运行的优选的1X长码序列来生成3X序列。 如此生成的3X序列是具有良好定义的自相关和互相关属性的伪随机序列。 因为该方法是可扩展的，所以容易地缩放以产生其他长码，例如 6X，9X和12X序列。

公开(公告)号：US20010040915A1

公开(公告)日：2001-11-15

申请号：US09751785

申请日：2000-12-29

Inventor： Ravi Subramanian

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

CPC classification number: H04B1/707 ,  H04B2201/70711

Abstract: A configurable multimode despreader for spread spectrum applications is disclosed herein. The despreader includes a plurality of data lines, at least one selective coupler coupled to the plurality of data lines, at least one multiplier coupled to the selective coupler, and a code input line coupled to the multiplier. The selective coupler selectively couples one of the plurality of data lines with the multiplier per any one of a plurality of despreading protocols. The multiplier then multiplies a desired input data type received from the selective coupler with a despreading code chip received from the code input line to produce an observation. The programmable multimode despreader supports variable code and data modulation schemes and variable spreading factors.

Abstract translation: 本文公开了一种用于扩频应用的可配置多模解扩器。 解扩器包括多个数据线，耦合到多个数据线的至少一个选择耦合器，耦合到选择耦合器的至少一个乘法器，以及耦合到乘法器的代码输入线。 所述选择性耦合器根据多个解扩协议中的任何一个选择性地将所述多条数据线中的一条与乘法器相耦合。 然后，乘法器将从选择耦合器接收的期望输入数据类型与从代码输入行接收到的解扩码芯片相乘以产生观察。 可编程多模解扩器支持可变码和数据调制方案和可变扩频因子。

公开(公告)号：US06198911B1

公开(公告)日：2001-03-06

申请号：US09120977

申请日：1998-07-22

Applicant: Raymond G. Lea ,  Martin Lysejko

Inventor： Raymond G. Lea ,  Martin Lysejko

IPC: H01Q1112

CPC classification number: H04W52/52 ,  G06F9/546 ,  H04B1/707 ,  H04B1/70735 ,  H04B1/7075 ,  H04B1/7077 ,  H04B1/70775 ,  H04B1/7085 ,  H04B2001/70706 ,  H04B2201/70702 ,  H04B2201/70706 ,  H04B2201/7071 ,  H04B2201/70711 ,  H04B2201/709709 ,  H04J3/0682 ,  H04J13/00 ,  H04L9/32 ,  H04L12/2856 ,  H04L12/2874 ,  H04L12/2898 ,  H04L12/66 ,  H04L41/0226 ,  H04L41/0233 ,  H04L41/22 ,  H04L43/00 ,  H04L63/0876 ,  H04L69/08 ,  H04L69/14 ,  H04L2209/08 ,  H04L2209/80 ,  H04Q11/04 ,  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 ,  H04W12/06 ,  H04W52/08 ,  Y04S40/168 ,  Y04S40/24

Abstract: A central terminal (10) in a wireless telecommunications system (1) includes an analog card (206) that combines inputs from a plurality of modem units (204) for a plurality of downlink communication paths. The analog card (206) generates a composite transmit signal (214) that is provided to a radio frequency card (208). The radio frequency card (208) prepares the composite transmit signal (214) for radio frequency transmission from the central terminal (10). A power amplifier (218) in a combining shelf (201) amplifies the composite transmit signal (214) to a desired transmitting level. A detector (240) measures a power output of the power amplifier (218). The power output measurement determined by the detector (240) is collected by a combiner monitor (222) and delivered to a shelf controller (210) of the modem shelf (200). The shelf controller (210) provides the power output measurement to the analog card (206). The analog card (206) compares the power output measurement to power estimates of the inputs from the modem units (204). The analog card (206) generates an adjustment signal (242) to control the power output from the power amplifier (218) by adjusting a gain of the radio frequency card in accordance with the comparison.

Abstract translation: 无线电信系统（1）中的中央终端（10）包括组合来自多个下行链路通信路径的多个调制解调器单元（204）的输入的模拟卡（206）。 模拟卡（206）产生提供给射频卡（208）的复合发送信号（214）。 射频卡（208）准备用于从中央终端（10）射频传输的复合发射信号（214）。 组合架（201）中的功率放大器（218）将复合发射信号（214）放大到期望的发射电平。 检测器（240）测量功率放大器（218）的功率输出。 由检测器（240）确定的功率输出测量由组合器监视器（222）收集并传送到调制解调器架（200）的搁架控制器（210）。 货架控制器（210）向模拟卡（206）提供功率输出测量。 模拟卡（206）将功率输出测量与来自调制解调器单元（204）的输入的功率估计进行比较。 模拟卡（206）通过根据比较调整射频卡的增益来生成调整信号（242）以控制从功率放大器（218）输出的功率。

公开(公告)号：US5923668A

公开(公告)日：1999-07-13

申请号：US966351

申请日：1997-11-06

Applicant: Martin Lysejko

Inventor： Martin Lysejko

IPC: G06F9/46 ,  H04B1/707 ,  H04B7/005 ,  H04B7/26 ,  H04J11/00 ,  H04J13/00 ,  H04L9/32 ,  H04L12/28 ,  H04L12/403 ,  H04L12/56 ,  H04L29/06 ,  H04W12/06 ,  H04W52/00 ,  H04W52/08 ,  H04W52/52 ,  H04W76/02 ,  H04W84/12 ,  H04W84/14 ,  H04J3/06

CPC classification number: H04W52/52 ,  G06F9/546 ,  H04B1/7075 ,  H04B1/7077 ,  H04B1/7085 ,  H04J13/00 ,  H04L12/403 ,  H04L29/06 ,  H04W76/02 ,  H04B1/70735 ,  H04B1/70775 ,  H04B2201/70711 ,  H04B2201/709709 ,  H04Q2213/1305 ,  H04Q2213/13093 ,  H04Q2213/13098 ,  H04Q2213/13109 ,  H04Q2213/13199 ,  H04Q2213/13216 ,  H04Q2213/13298 ,  H04Q2213/13299 ,  H04Q2213/13335 ,  H04Q2213/13376 ,  H04W52/08 ,  H04W84/12 ,  H04W84/14

Abstract: 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 receiver (202) of the subscriber terminal (20) compares a code and phase of a master code sequence in the downlink signal (212) to a code and phase of a slave code sequence of the receiver (202). The receiver (202) adjusts the phase of the slave code sequence until a match is obtained with the master code sequence. Matching of the slave code sequence to the master code sequence facilitates establishment of the downlink communication path.

Abstract translation: 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）。 用户终端（20）的接收机（202）将下行链路信号（212）中的主码序列的码和相位与接收机（202）的从属码序列的码和相位进行比较。 接收器（202）调整从代码序列的相位，直到用主代码序列获得匹配。 从源代码序列与主代码序列的匹配便于建立下行链路通信路径。

公开(公告)号：US5905963A

公开(公告)日：1999-05-18

申请号：US660054

申请日：1996-05-31

Applicant: Martin Lysejko

Inventor： Martin Lysejko

IPC: 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 ,  H04W12/06 ,  H04W24/08 ,  H04W52/08 ,  H04W52/52 ,  H04W88/02 ,  H04Q7/32 ,  H04Q7/34

CPC classification number: H04W52/52 ,  H04B1/707 ,  H04B1/7075 ,  H04B1/7077 ,  H04B1/7085 ,  H04J3/0682 ,  H04L12/26 ,  H04L12/66 ,  H04L41/0226 ,  H04L41/0233 ,  H04L41/0803 ,  H04L41/22 ,  H04L43/00 ,  H04L69/14 ,  H04L9/12 ,  H04L9/3215 ,  H04L9/3226 ,  H04Q11/04 ,  H04W24/08 ,  H04B1/70735 ,  H04B1/70775 ,  H04B2001/70706 ,  H04B2201/70702 ,  H04B2201/70706 ,  H04B2201/7071 ,  H04B2201/70711 ,  H04B2201/709709 ,  H04L2209/34 ,  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 ,  H04W88/02

Abstract: A subscriber station monitor system is provided for a subscriber station of a wireless telecommunications system. The subscriber station includes a transmitter/receiver for wireless communication with a central station and a communications controller for processing signals for transmission and/or received signals, a supply unit for connection to one or more telephone lines for user telecommunications equipment and a link connecting the communications controller to the supply unit, control data being passed in accordance with an internal protocol between the communications controller and the supply unit via the link. The station monitor system comprises a display and at least one user input device, a connector to the link and a protocol interpreter for extracting control data to be displayed on the display for monitoring the operation of the subscriber station and/or for inserting input control data to the link for configuring the subscriber station. By providing a separate monitor system for connection to the subscriber station in the link between the transmitter/receiver and the supply unit, monitoring and control of selected subscriber terminal functions is readily possible.

Abstract translation: 为无线电信系统的用户台提供用户台监控系统。 用户站包括用于与中心站进行无线通信的发射机/接收机和用于处理用于传输和/或接收信号的信号的通信控制器，用于连接用于用户电信设备的一条或多条电话线的供应单元和连接 通信控制器到供应单元，根据通信控制器和供应单元之间的内部协议通过链路传递控制数据。 站监视器系统包括显示器和至少一个用户输入设备，到该链路的连接器和用于提取要显示在显示器上的控制数据的协议解释器，用于监视用户站的操作和/或用于插入输入控制数据 到用于配置用户台的链路。 通过在发射机/接收机和供电单元之间的链路中提供用于连接到用户台的单独的监视器系统，可以容易地监视和控制所选择的用户终端功能。

公开(公告)号：US5742595A

公开(公告)日：1998-04-21

申请号：US558675

申请日：1995-11-16

Applicant: Shashikant Bhagalia

Inventor： Shashikant Bhagalia

IPC: G06F9/46 ,  H04B1/707 ,  H04B7/005 ,  H04B7/24 ,  H04J3/06 ,  H04J11/00 ,  H04J13/00 ,  H04L9/32 ,  H04L12/24 ,  H04L12/26 ,  H04L12/28 ,  H04L12/403 ,  H04L12/56 ,  H04L12/66 ,  H04L29/06 ,  H04Q11/04 ,  H04W8/20 ,  H04W12/06 ,  H04W52/00 ,  H04W52/04 ,  H04W52/08 ,  H04W52/52 ,  H04W84/14 ,  H04W88/02 ,  H04W92/08 ,  H04K1/00

CPC classification number: H04Q11/04 ,  G06F9/546 ,  H04B1/707 ,  H04B1/7075 ,  H04B1/7077 ,  H04B1/7085 ,  H04J13/00 ,  H04J3/0682 ,  H04L12/26 ,  H04L12/66 ,  H04L29/06 ,  H04L41/0226 ,  H04L41/0233 ,  H04L41/22 ,  H04L43/00 ,  H04L69/14 ,  H04W52/04 ,  H04W52/52 ,  H04B1/70735 ,  H04B1/70775 ,  H04B2001/70706 ,  H04B2201/70702 ,  H04B2201/70706 ,  H04B2201/7071 ,  H04B2201/70711 ,  H04B2201/709709 ,  H04L41/08 ,  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 ,  H04W8/205 ,  H04W84/14 ,  H04W88/021 ,  H04W92/08

Abstract: A CDMA signal processing circuit (300) includes a summer circuit (302) that receives a plurality of CDMA signals from a plurality of channels (304). The summer circuit (302) combines the plurality of CDMA signals according to a power magnitude value and power direction value associated with each CDMA signal. The summer circuit (302) generates a summed signal (306) that is applied to a clipping circuit (308). The clipping circuit (308) removes a portion of the summed signal (306) outside a desired threshold range and generates a clipped signal (310) therefrom. Digital to analog processing circuits (312 and 314) convert the clipped signal (310) into a half width encoded format. Digital to analog processing circuits (312 and 314) transform the half width encoded clipped signal into analog I and Q signals, respectively. The analog I and Q signals are applied to corresponding filters (316 and 318) prior to transmission.

公开(公告)号：JP5075313B2

公开(公告)日：2012-11-21

申请号：JP2001555340

申请日：2001-01-29

Applicant: インフィネオン テヒノロジース アクチェンゲゼルシャフト

Inventor： ラヴィ サブラマニアン ,  クリストファー ウッドソープ

IPC: H04B1/707

CPC classification number: H04B1/0003 ,  H04B1/707 ,  H04B2201/7071 ,  H04B2201/70711

公开(公告)号：JP5001285B2

公开(公告)日：2012-08-15

申请号：JP2008535021

申请日：2006-10-11

Applicant: テレフオンアクチーボラゲット エル エム エリクソン(パブル)

Inventor： フレドリック グナルソン， ,  ボー ハゲルマン，

IPC: H04W88/08 ,  H04B1/707 ,  H04J11/00 ,  H04J13/00

CPC classification number: H04W72/082 ,  H04B1/7103 ,  H04B1/7105 ,  H04B2201/70711 ,  H04Q2213/13098

公开(公告)号：JP2012504899A

公开(公告)日：2012-02-23

申请号：JP2011530036

申请日：2008-10-16

Applicant: クゥアルコム・インコーポレイテッドQualcomm Incorporated

Inventor： ジョシ、アブヘイ・エー． ,  リー、グレゴリー・アール． ,  リン、ユ−チュアン・ジー． ,  リン、リジュン

IPC: H04W72/08

CPC classification number: H04W72/085 ,  H04B1/7117 ,  H04B2201/70711 ,  H04L1/0001 ,  H04L5/0007 ,  H04L5/003 ,  H04L5/006 ,  H04L27/2647

Abstract: Systems and methodologies are described that facilitate dynamically allocating demodulation resources of a wideband receiver to provide improved demodulation of simultaneously received signals. Signal-to-noise ratio (SNR) and/or packet error rate (PER) can be measured for the plurality of carriers to determine which demodulators related to the carriers require more resources than others to demodulate signals at a specified signal quality. Where the SNR of a related carrier is high and/or PER is low, the demodulator can require fewer resources than where the SNR of a related carrier is low and/or PER is high. In this regard, the resources are dynamically allocated among the demodulators and reallocated where SNR/PER changes and/or additional resources are made available.

公开(公告)号：JP2010011061A

公开(公告)日：2010-01-14

申请号：JP2008167707

申请日：2008-06-26

Applicant: Denso Corp ,  Nippon Soken Inc ,  株式会社デンソー ,  株式会社日本自動車部品総合研究所

Inventor： MITSUHARU KENICHIRO ,  TAKAOKA AKIRA ,  NAITO HIROMICHI

IPC: H04B1/707 ,  B60R25/01 ,  B60R25/24 ,  E05B49/00 ,  H04B1/3822 ,  H04B1/40 ,  H04B1/7075 ,  H04B17/00 ,  H04W4/04 ,  H04W88/02

CPC classification number: H04B1/7093 ,  G07C2009/00793 ,  G07C2209/06 ,  H04B1/7077 ,  H04B1/7095 ,  H04B2201/70711 ,  H04B2201/70715

Abstract: PROBLEM TO BE SOLVED: To provide a wireless communication system which shortens time required for synchronous acquisition rather than in the prior art to improve responsiveness when communication is performed by a spread spectrum system. SOLUTION: A sliding correlator (or matched filter) does not immediately start trial of the synchronous acquisition and waits for a synchronous point retrieval start control signal from a CPU even when it becomes a state in which the trial of the synchronous acquisition can be started at a point of time t2 by starting reception of an actual receiving signal at a point of time t1 by an onboard unit for RF reception. Then, when the synchronous point retrieval start control signal comes at a point of time t3, to a point of time t4 when the synchronous point retrieval end control signal comes is used as a retrieval period, and the trial of the synchronous acquisition is started for a period where there is a starting point in the retrieval period. As a result, the synchronous acquisition is successful at a point of time t5 when the receiving signal using the time t3 as the starting point is received for one period, despreading demodulation is performed after that. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提供一种无线通信系统，其缩短了同步采集所需的时间，而不是在现有技术中，以便在由扩频系统执行通信时提高响应性。 解决方案：滑动相关器（或匹配滤波器）不会立即开始同步采集试验，并且等待来自CPU的同步点检索开始控制信号，即使当其成为同步采集的试验可以 通过在时间点t1开始接收实际接收信号，通过用于RF接收的车载单元在时间点t2开始。 然后，当同步点检索开始控制信号到达时间点t3时，当使用同步点检索结束控制信号作为检索周期时，到时间点t4，并且开始同步采集的试验 在检索期间有起点的时期。 结果，当以时间t3为起点的接收信号被接收一个周期时，在时间点t5的同步捕获成功，在此之后执行解扩解调。 版权所有（C）2010，JPO＆INPIT