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    Base Station using reference signal power control
    12.
    发明申请
    Base Station using reference signal power control 失效
    基站采用参考信号功率控制

    公开(公告)号：US20030118082A1

    公开(公告)日：2003-06-26

    申请号：US10361669

    申请日：2003-02-10

    Applicant: InterDigital Technology Corporation

    Inventor： Fatih M. Ozluturk

    IPC: H04B001/69

    CPC classification number: H04W52/343 ,  H04W24/00 ,  H04W52/143 ,  H04W52/16 ,  H04W52/24 ,  H04W52/32 ,  H04W52/322 ,  H04W52/346 ,  H04W84/042 ,  H04W88/08

    Abstract: A wireless spread spectrum base station has a plurality of modems. The modems produce at least one baseband channel signal and a baseband reference signal. At least one forward power controller controls a power level of the at least one baseband channel signal. A baseband signal combiner combines the at least one baseband channel and baseband reference signals. A radio frequency transmitter modulates to radio frequency and transmits the combined signal. A reference power control processor determines a desired transmit power level of the baseband reference signal to the desired transmit power level.

    Abstract translation: 无线扩频基站具有多个调制解调器。 调制解调器产生至少一个基带信道信号和基带参考信号。 至少一个正向功率控制器控制至少一个基带信道信号的功率电平。 基带信号组合器组合至少一个基带信道和基带参考信号。 射频发射机调制到射频并传输组合信号。 参考功率控制处理器将基带参考信号的期望发射功率电平确定到期望的发射功率电平。

    Apparatus for controlling initial power ramp-up in a CDMA system by using short codes
    13.
    发明申请
    Apparatus for controlling initial power ramp-up in a CDMA system by using short codes 有权
    用于通过使用短码来控制CDMA系统中的初始功率提升的装置

    公开(公告)号：US20020187797A1

    公开(公告)日：2002-12-12

    申请号：US10211090

    申请日：2002-08-02

    Applicant: InterDigital Technology Corporation

    Inventor： Fatih M. Ozluturk ,  Gary R. Lomp

    IPC: H04B007/00 ,  H04Q007/00 ,  H04Q007/20

    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: An apparatus for 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: 用于在CDMA通信系统中建立信道期间控制发射功率的装置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。

    Base station using global channel power control
    15.
    发明申请
    Base station using global channel power control 有权
    基站采用全球通道功率控制

    公开(公告)号：US20020183015A1

    公开(公告)日：2002-12-05

    申请号：US10176276

    申请日：2002-06-20

    Applicant: InterDigital Technology Corporation a Delaware Corporation

    Inventor： Fatih M. Ozluturk

    IPC: H04B001/40 ,  H04M001/00 ,  H04B001/38

    CPC classification number: H04W52/343 ,  H04W24/00 ,  H04W52/143 ,  H04W52/16 ,  H04W52/24 ,  H04W52/32 ,  H04W52/322 ,  H04W52/346 ,  H04W84/042 ,  H04W88/08

    Abstract: A wireless spread spectrum base station has a plurality of modems. The modems produce at least one baseband channel signal and a baseband global signal. At least one forward power controller controls a power level of the at least one baseband channel signal. A baseband signal combiner combines the at least one baseband channel and baseband global signals. A radio frequency transmitter modulates to radio frequency and transmits the combined signal. A global power control processor determines a desired transmit power level of the baseband global signal to the desired transmit power level.

    Abstract translation: 无线扩频基站具有多个调制解调器。 调制解调器产生至少一个基带信道信号和基带全局信号。 至少一个正向功率控制器控制至少一个基带信道信号的功率电平。 基带信号组合器组合至少一个基带信道和基带全局信号。 射频发射机调制到射频并传输组合信号。 全局功率控制处理器将基带全局信号的​​期望发射功率电平确定到期望的发射功率电平。

    Short code detection method
    16.
    发明申请
    Short code detection method 有权
    短码检测方法

    公开(公告)号：US20020163927A1

    公开(公告)日：2002-11-07

    申请号：US10187687

    申请日：2002-07-01

    Applicant: InterDigital Technology Corporation

    Inventor： Fatih M. Ozluturk ,  Alexander M. Jacques

    IPC: H04B007/216

    CPC classification number: H04B1/71 ,  H04B1/70735 ,  H04B1/7101 ,  H04B1/7115

    Abstract: A method is disclosed for receiving a transmitted signal in a communication system employing CDMA techniques wherein the transmitted signal includes a plurality of short codes, each of which is transmitted repetitively over a fixed period of time and where the received signal has CW interference in addition to the transmitted signal. The method includes detecting the presence of the short code in a plurality of time phases of the received signal by calculating a likelihood ratio for each phase. The likelihood ratio takes into account the current short code.

    Abstract translation: 公开了一种用于在采用CDMA技术的通信系统中接收发送信号的方法，其中所发送的信号包括多个短码，每个短码在固定时间段内重复发送，并且其中接收信号除了具有CW干扰之外 发送信号。 该方法包括通过计算每个相位的似然比来检测接收信号的多个时间相位中的短码的存在。 似然比考虑了当前的短码。

    Adaptive cancellation of fixed interferers
    18.
    发明申请
    Adaptive cancellation of fixed interferers 失效
    固定干扰源的自适应消除

    公开(公告)号：US20020002065A1

    公开(公告)日：2002-01-03

    申请号：US09888882

    申请日：2001-06-25

    Applicant: InterDigital Technology Corporation

    Inventor： David K. Mesecher ,  Fatih M. Ozluturk

    IPC: H04M001/00

    CPC classification number: H04B1/126 ,  H01Q1/246 ,  H01Q3/2629

    Abstract: An improved base station which cancels the effects of known fixed interference sources produces a signal substantially free from the interference sources thereby increasing total channel capacity. The adaptive interference canceler system includes a main antenna for receiving signals from other communication stations and at least one directional antenna directed toward an interference source. The main and directional antennas are coupled together such that an output signal substantially free from the interference is generated.

    Abstract translation: 消除已知固定干扰源的影响的改进的基站产生基本上不受干扰源的信号从而增加总信道容量。 自适应干扰消除器系统包括用于从其他通信站接收信号的主天线和指向干扰源的至少一个定向天线。 主和定向天线耦合在一起，使得产生基本上不受干扰的输出信号。

    Circuit and software for generating a stream cipher
    20.
    发明申请
    Circuit and software for generating a stream cipher 失效
    用于生成流密码的电路和软件

    公开(公告)号：US20040208322A1

    公开(公告)日：2004-10-21

    申请号：US10803263

    申请日：2004-03-18

    Applicant: InterDigital Technology Corporation

    Inventor： Fatih M. Ozluturk

    IPC: H04L009/00

    CPC classification number: H03K3/84 ,  H04L9/0662 ,  H04L9/12 ,  H04L2209/12 ,  H04L2209/805

    Abstract: A circuit or software generates a cipher stream. The software models components or the circuit comprises a first and a second plurality of linear feedback shift registers (LFSR). A first of the second plurality of LFSR has a clock signal as a clock input and others of the first plurality of LFSR have an output of another of the first plurality of LFSR as a clock input. A first of the first plurality of LFSR has the clock signal combined with an output of the first of the second plurality of LFSR as a clock input and others of the second plurality of LFSR have an output of one of the first plurality of LSFR combined with an output of another of the first plurality of LFSR as a clock input. An output of a last of the first plurality of LFSR and an output of a last of the second plurality of LFSR is combined to produce the cipher stream

    Abstract translation: 电路或软件产生密码流。 软件模型组件或电路包括第一和第二多个线性反馈移位寄存器（LFSR）。 第二多个LFSR中的第一个具有作为时钟输入的时钟信号，并且第一多个LFSR中的另一个具有作为时钟输入的第一多个LFSR中的另一个的输出。 第一多个LFSR中的第一个具有与第二多个LFSR中的第一个LFSR的输出组合的时钟信号作为时钟输入，并且第二多个LFSR中的其他第二多个LFSR中的一个具有与第 作为时钟输入的第一多个LFSR中的另一个的输出。 第一多个LFSR中的最后一个的输出和第二多个LFSR中的最后一个的输出被组合以产生密码流

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