中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

10 records (took 0.02 seconds)

    7.
    发明专利
    未知

    公开(公告)号：BR0208310A

    公开(公告)日：2004-08-24

    申请号：BR0208310

    申请日：2002-03-22

    Applicant: QUALCOMM INC

    Inventor： BENDER PAUL ,  JALALI AHMAD ,  JUDSON BRUCE ,  PADOVANI ROBERTO ,  WHEATLEY CHARLES E III

    IPC: H04B7/26 ,  H04J3/00 ,  H04W16/02 ,  H04W16/12 ,  H04Q7/00

    Abstract: A "time multiplexed" transmission scheme capable of reducing the amount of interference from other cells operated at the same frequency band. Each cell in a system transmits in designated time intervals (e.g., time slots) during which other interfering cells may be prevented from transmitting. By temporarily "blanking" transmissions from interfering cells during the designated time slots, the amount of interference from these cells is reduced. The improved signal quality may support transmission at a desired or higher data rate, which may not be possible without cell blanking. In one variant, transmissions from the cells are staggered over different time slots. A set of one or more cells may be designated to transmit in each of a number of slot phases. The cells transmit in a staggered manner on these phases to reduce interference. The transmission scheme may be used for a various channel types (e.g., a control channel) and applications.

    Time multiplexed transmission scheme for a spread spectrum communication system
    8.
    发明专利
    Time multiplexed transmission scheme for a spread spectrum communication system 未知

    公开(公告)号：AU2002252448A1

    公开(公告)日：2002-10-08

    申请号：AU2002252448

    申请日：2002-03-22

    Applicant: QUALCOMM INC

    Inventor： WHEATLEY CHARLES E III ,  JALALI AHMAD ,  JUDSON BRUCE ,  PADOVANI ROBERTO ,  BENDER PAUL

    IPC: H04B7/26 ,  H04J3/00 ,  H04W16/02 ,  H04W16/12 ,  H04Q7/36

    Abstract: A "time multiplexed" transmission scheme capable of reducing the amount of interference from other cells operated at the same frequency band. Each cell in a system transmits in designated time intervals (e.g., time slots) during which other interfering cells may be prevented from transmitting. By temporarily "blanking" transmissions from interfering cells during the designated time slots, the amount of interference from these cells is reduced. The improved signal quality may support transmission at a desired or higher data rate, which may not be possible without cell blanking. In one variant, transmissions from the cells are staggered over different time slots. A set of one or more cells may be designated to transmit in each of a number of slot phases. The cells transmit in a staggered manner on these phases to reduce interference. The transmission scheme may be used for a various channel types (e.g., a control channel) and applications.

    TIME MULTIPLEXED TRANSMISSION SCHEME FOR A SPREAD SPECTRUM COMMUNICATION SYSTEM
    9.
    发明申请
    TIME MULTIPLEXED TRANSMISSION SCHEME FOR A SPREAD SPECTRUM COMMUNICATION SYSTEM 审中-公开
    用于传播频谱通信系统的时间多路复用传输方案

    公开(公告)号：WO02078371A3

    公开(公告)日：2003-03-06

    申请号：PCT/US0208731

    申请日：2002-03-22

    Applicant: QUALCOMM INC

    Inventor： BENDER PAUL ,  JALALI AHMAD ,  JUDSON BRUCE ,  PADOVANI ROBERTO ,  WHEATLEY CHARLES E III

    IPC: H04B7/26 ,  H04J3/00 ,  H04W16/02 ,  H04W16/12 ,  H04Q7/36

    CPC classification number: H04W16/12 ,  H04B7/2618 ,  H04W16/02

    Abstract: A "time multiplexed" transmission scheme capable of reducing the amount of interference from other cells operated at the same frequency band. Each cell of a system transmits in designated time intervals (e.g., time slots) during which other interfering cells may be prevented from transmitting. By temporarily "blanking" transmissions from interfering cells during the designated time slots, the amount of interference from these cells is reduced. The improved signal quality may support transmission at a desired or higher data rate, which may not be possible without cell blanking. In one variant, transmissions from the cells are staggered over different time slots. A set of one or more cells may be designated to transmit in each of a number of slot phases. The cells transmit in a staggered manner on theses phases to reduce interference. The transmission scheme may be used for a various channel types (e.g., a control channel) and applications.

    Abstract translation: “时分复用”传输方案能够减少在相同频带上工作的其他小区的干扰量。 系统的每个小区以指定的时间间隔（例如，时隙）发送，在该时间间隔期间可以防止其他干扰小区的发射。 通过在指定时隙期间暂时从干扰小区“消隐”传输，减少了来自这些小区的干扰量。 改进的信号质量可以支持以期望的或更高数据速率的传输，这在没有小区消隐的情况下可能是不可能的。 在一个变型中，来自小区的传输在不同的时隙上交错。 可以指定一组一个或多个小区在多个时隙相位中的每一个中进行发送。 小区在这些相位上以交错的方式发送以减少干扰。 传输方案可以用于各种信道类型（例如，控制信道）和应用。

    METHOD AND APPARATUS FOR BEAM SWITCHING IN A WIRELESS COMMUNICATION SYSTEM
    10.
    发明申请
    METHOD AND APPARATUS FOR BEAM SWITCHING IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
    在无线通信系统中用于波束切换的方法和设备

    公开(公告)号：WO0203721A3

    公开(公告)日：2002-09-06

    申请号：PCT/US0141050

    申请日：2001-06-18

    Applicant: QUALCOMM INC

    Inventor： PADOVANI ROBERTO ,  BENDER PAUL E ,  JALALI AHMAD ,  JUDSON BRUCE ,  WHEATLEY CHARLES E III

    IPC: H04J15/00 ,  H04W16/02 ,  H04W16/12 ,  H04Q7/36 ,  H04B7/26

    CPC classification number: H04W16/12 ,  H04W16/02

    Abstract: In a CDMA data communication system capable of variable rate transmission, utilization of beam switching techniques decreases the average interference caused by transmissions of a base station to subscriber stations within a cell, and in neighboring cells. Base stations utilize multiple transmit antennas, each transmitting signals at controlled amplitudes and phases, to form transmit signal corresponding to sector divisions. Data and reference signals are transmitted along sector division beams that alternate according to fixed time slots in order to increase system capacity and data rates by maximizing carrier-to-interference ratios (C/I) measured at subscriber stations.

    Abstract translation: 在能够进行可变速率传输的CDMA数据通信系统中，利用波束切换技术减少了由基站向小区内的用户站以及相邻小区的传输引起的平均干扰。 基站利用多个发射天线，每个发射天线以受控的幅度和相位发射信号，以形成对应于扇区划分的发射信号。 数据和参考信号沿着根据固定时隙交替的扇区划分波束传输，以便通过最大化用户站处测量的载波干扰比（C / I）来增加系统容量和数据速率。

Patent Agency Ranking