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    Multiple user communication system, device and method with overlapping uplink carrier spectra
    21.
    发明专利
    Multiple user communication system, device and method with overlapping uplink carrier spectra 未知

    公开(公告)号：AU692737B2

    公开(公告)日：1998-06-11

    申请号：AU2727897

    申请日：1997-04-11

    Applicant: MOTOROLA INC

    Inventor： BAUM KEVIN ,  NADGAUDA NIKHIL S ,  PETERSON ROGER LAURIN ,  KELTON JAMES ROBERT

    IPC: H04B1/10 ,  H04B7/005 ,  H04L5/02 ,  H04L5/14 ,  H04B1/40

    Abstract: The present invention provides a method, system, subscriber unit, and base/headend unit for a bandwidth efficient multiple user digital communication system that facilitates multiple user reverse link communication using overlapped transmit signal spectra of at least two overlap bandwidth subscriber units. Overlap bandwidth subscriber units receive a forward link signal, each deriving a frequency reference from the forward link signal and a symbol timing reference from the forward link signal, and transmitting a reverse link signal to the base/headend unit that receives a composite reverse link signal of the reverse link signals. Each reverse link signal includes at least one modulated data carrier with distinct carrier frequencies. Each transmitted reverse link signal has a symbol timing responsive to the symbol timing reference, and the frequency spectra of the reverse link signals overlap using overlapped transmit signal spectra of at least two overlap bandwidth subscriber units.

    MULTIPLE USER COMMUNICATION SYSTEM, DEVICE AND METHOD WITH OVERLAPPING UPLINK CARRIER SPECTRA
    22.
    发明专利
    MULTIPLE USER COMMUNICATION SYSTEM, DEVICE AND METHOD WITH OVERLAPPING UPLINK CARRIER SPECTRA 未知

    公开(公告)号：CA2223982A1

    公开(公告)日：1997-11-06

    申请号：CA2223982

    申请日：1997-04-11

    Applicant: MOTOROLA INC

    Inventor： BAUM KEVIN ,  PETERSON ROGER LAURIN ,  NADGAUDA NIKHIL S ,  KELTON JAMES ROBERT

    IPC: H04B1/10 ,  H04B7/005 ,  H04L5/02 ,  H04L5/14 ,  H04Q7/32 ,  H04Q7/30

    Abstract: The present invention provides a system for a method, system (300), subscrib er unit (320, 330), and base/headend unit (310) for a bandwidth efficient multiple user digital communication system (300) that facilitates multiple user reverse link communication using overlapped transmit signal spectra of at least two overlap bandwidth subscriber units (320, 330). Overlap bandwidth subscriber units (320, 330) receive a forward link signal, each deriving a frequency reference from the forward link signal and a symbol timing referen ce from the forward link signal, and transmitting a reverse link signal to the base/headend unit (310) that receives a composite reverse link signal of the reverse link signals. Each reverse link signal includes at least one modulat ed data carrier with distinct carrier frequencies. Each transmitted reverse lin k signal has a symbol timing responsive to the symbol timing reference, and th e frequency spectra of the reverse link signals overlap using overlapped transmit signal spectra of at least two overlap bandwidth subscriber units (320, 330).

    MULTICARRIER REVERSE LINK TIMING SYNCHRONIZATION SYSTEM, DEVICE AND METHOD
    30.
    发明公开
    MULTICARRIER REVERSE LINK TIMING SYNCHRONIZATION SYSTEM, DEVICE AND METHOD 失效
    设备，方法和系统对于多载波RUCK通道时间同步

    公开(公告)号：EP0840964A4

    公开(公告)日：2002-02-13

    申请号：EP97920360

    申请日：1997-04-11

    Applicant: MOTOROLA INC

    Inventor： BAUM KEVIN ,  KELTON JAMES ROBERT ,  RASKY PHILLIP DAVID

    IPC: H04J3/06 ,  H04L27/26

    CPC classification number: H04W56/0005 ,  H04J3/0682

    Abstract: The present invention provides a communication system (100), device (200), and method of reverse link symbol timing synchronization of transmitted signals to facilitate reverse link timing synchronization. A base unit (204) transmits a forward link signal (160) and determines a timing offset for signals received on a reverse link synchronization channel (150). A plurality of multicarrier subscriber units (202) receive a forward link signal (160) and transmits a reverse link symbol timing synchronization burst on a reverse link channel (160).

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