利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

221 条记录 (耗时 0.043 秒)

    Modular base station with variable communication capacity
    1.
    再颁专利
    Modular base station with variable communication capacity 失效
    具有可变通信能力的模块化基站

    公开(公告)号：USRE44010E1

    公开(公告)日：2013-02-19

    申请号：US12023611

    申请日：1999-03-17

    申请人： Jeffrey S. Polan ,  Stephen G. Dick ,  Leonid Kazakevich ,  Fatih M. Ozluturk ,  Robert T. Regis ,  Richard Turner

    发明人： Jeffrey S. Polan ,  Stephen G. Dick ,  Leonid Kazakevich ,  Fatih M. Ozluturk ,  Robert T. Regis ,  Richard Turner

    IPC分类号： H04B7/216

    CPC分类号： H04W72/005 ,  H04B17/318 ,  H04B17/382 ,  H04W16/12 ,  H04W52/322 ,  H04W52/325

    摘要： The present invention provides a base station architecture that is modular in configuration, lowering the initial cost of implementing a new CDMA telecommunication system for a defined geographical region while allowing for future capacity. The scalable architecture is assembled from a digital base station unit that is configured to support a plurality of simultaneous wireless calls connecting to a conventional public switched telephone network. For initial startup, two base station units are deployed for redundancy in case of a single failure. Additional base station units may be added when the need arises for extra traffic capacity. If sectorization is required, the base station units may be directionally oriented. Coupled to and remote from each base station unit are two amplified antenna modules that contain an omni-directional or an external directional antenna, a high power RF amplifier for transmitted frequencies and a low noise amplifier for received frequencies. A separate power supply module capable of supporting two base station units provides continued service in the event of a mains power outage.

    摘要翻译： 本发明提供了一种模块化配置的基站架构，降低了为所定义的地理区域实施新的CDMA电信系统的初始成本，同时允许将来的容量。 可扩展架构由数字基站单元组合，数字基站单元被配置为支持连接到常规公共交换电话网络的多个同时无线呼叫。 对于初始启动，在单个故障的情况下，部署了两个基站单元以实现冗余。 当需要额外的流量时，可以添加额外的基站单元。 如果需要扇区化，则基站单元可以是定向的。 耦合到每个基站单元并且远离每个基站单元的两个放大天线模块包含全向或外部定向天线，用于发射频率的高功率RF放大器和用于接收频率的低噪声放大器。 能够支持两个基站单元的单独的电源模块在主电源中断的情况下提供持续的服务。

    BALANCING AMPLITUDE AND PHASE
    3.
    发明申请
    BALANCING AMPLITUDE AND PHASE 有权
    平衡振幅和相位

    公开(公告)号：US20090141788A1

    公开(公告)日：2009-06-04

    申请号：US12352303

    申请日：2009-01-12

    申请人： Fatih M. Ozluturk ,  Stephen G. Dick ,  Leonid Kazakevich

    发明人： Fatih M. Ozluturk ,  Stephen G. Dick ,  Leonid Kazakevich

    IPC分类号： H04L27/01

    CPC分类号： H04L27/0014 ,  H04L27/22 ,  H04L2027/0016 ,  H04L2027/0024

    摘要： A system for balancing a signal having I and Q components includes means for cross correlating the I and Q components to produce a cross correlation product; means for adjusting the gain of each I and Q signal component in accordance with said cross correlation product; and means for adding one component with the adjustable gain of the other component to produce a phase-balanced signal.

    摘要翻译： 用于平衡具有I和Q分量的信号的系统包括用于互相关联I和Q分量以产生互相关乘积的装置; 用于根据所述互相关乘积调整每个I和Q信号分量的增益的装置; 以及用于添加具有另一部件的可调增益的一个分量以产生相位平衡信号的装置。

    Balancing amplitude and phase
    6.
    发明授权
    Balancing amplitude and phase 有权
    平衡振幅和相位

    公开(公告)号：US08792545B2

    公开(公告)日：2014-07-29

    申请号：US12352303

    申请日：2009-01-12

    申请人： Fatih M. Özlütürk ,  Stephen G. Dick ,  Leonid Kazakevich

    发明人： Fatih M. Özlütürk ,  Stephen G. Dick ,  Leonid Kazakevich

    IPC分类号： H03H7/30 ,  H03H7/40 ,  H03K5/159

    CPC分类号： H04L27/0014 ,  H04L27/22 ,  H04L2027/0016 ,  H04L2027/0024

    摘要： A system for balancing a signal having I and Q components includes means for cross correlating the I and Q components to produce a cross correlation product; means for adjusting the gain of each I and Q signal component in accordance with said cross correlation product; and means for adding one component with the adjustable gain of the other component to produce a phase-balanced signal.

    摘要翻译： 用于平衡具有I和Q分量的信号的系统包括用于互相关联I和Q分量以产生互相关乘积的装置; 用于根据所述互相关乘积调整每个I和Q信号分量的增益的装置; 以及用于添加具有另一部件的可调增益的一个分量以产生相位平衡信号的装置。

    Balancing amplitude and phase
    7.
    发明授权
    Balancing amplitude and phase 有权
    平衡振幅和相位

    公开(公告)号：US06377620B1

    公开(公告)日：2002-04-23

    申请号：US09233791

    申请日：1999-01-19

    申请人： Fatih M. Özlütürk ,  Stephen G. Dick ,  Leonid Kazakevich

    发明人： Fatih M. Özlütürk ,  Stephen G. Dick ,  Leonid Kazakevich

    IPC分类号： H03H730

    CPC分类号： H04L27/0014 ,  H04L27/22 ,  H04L2027/0016 ,  H04L2027/0024

    摘要： The present invention balances the amplitude and phase of a received QPSK signal that may have been corrupted during transmission. The system determines the amplitude of the I and Q symbols of a received signal, compares them, and applies a correction to one or both channels to correct for amplitude imbalance. For phase imbalance, the system calculates the cross-correlation of the I and Q symbols which should average to zero. A correction factor is derived from the cross-correlation and applied to both channels, returning the phase cross-correlation to zero. The output from the system is a signal corrected in both amplitude and phase.

    摘要翻译： 本发明平衡在发送期间可能被破坏的接收的QPSK信号的幅度和相位。 系统确定接收信号的I和Q符号的幅度，将其进行比较，并对一个或两个信道进行校正，以校正幅度不平衡。 对于相位不平衡，系统计算应平均为零的I和Q符号的互相关。 校正因子从互相关导出并应用于两个通道，将相位互相关返回到零。 系统的输出是在幅度和相位上均校正的信号。

    Method and system for providing channel assignment information used to support uplink and downlink channels
    10.
    发明授权
    Method and system for providing channel assignment information used to support uplink and downlink channels 有权
    用于提供用于支持上行链路和下行链路信道的信道分配信息的方法和系统

    公开(公告)号：US09332569B2

    公开(公告)日：2016-05-03

    申请号：US13103601

    申请日：2011-05-09

    申请人： Marian Rudolph ,  Stephen G. Dick ,  Phillip J. Pietraski

    发明人： Marian Rudolph ,  Stephen G. Dick ,  Phillip J. Pietraski

    IPC分类号： H04W4/00 ,  H04W72/14 ,  H04L1/00 ,  H04L5/14 ,  H04L5/00 ,  H04W48/16 ,  H04W72/04

    CPC分类号： H04W72/0406 ,  H04L1/0046 ,  H04L1/0061 ,  H04L1/0072 ,  H04L5/0053 ,  H04L5/0091 ,  H04L5/14 ,  H04W48/16 ,  H04W72/042 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/14

    摘要： A method and wireless transmit/receive unit (WTRU) for utilizing channel control information associated with enhanced uplink (EU) transmission is disclosed. The WTRU receives information via radio resource control (RRC) signaling and receives downlink (DL) control information for at least EU transmission. The WTRU determines whether the DL control information is intended for the WTRU based at least upon a first forty bit specific code sequence and a second forty bit specific code sequence received in at least one time slot and determines whether the DL control information is the first type or the second type. The WTRU utilizes the DL control information of the first type or the second type for at least EU transmission on a condition that the DL control information is intended for the WTRU.

    摘要翻译： 公开了一种用于利用与增强上行链路（EU）传输相关联的信道控制信息的方法和无线发射/接收单元（WTRU）。 WTRU经由无线电资源控制（RRC）信令接收信息，并且接收至少EU传输的下行链路（DL）控制信息。 WTRU至少基于在至少一个时隙中接收到的前四十位特定码序列和第二十四位特定码序列来确定DL控制信息是否针对WTRU，并且确定DL控制信息是否是第一类型 或第二种类型。 在DL控制信息针对WTRU的情况下，WTRU至少使用第一类型或第二类型的DL控制信息进行至少EU传输。