公开(公告)号：DE69740009D1

公开(公告)日：2010-11-11

申请号：DE69740009

申请日：1997-04-11

Applicant: MOTOROLA INC

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

IPC: H04B1/40 ,  H04B1/10 ,  H04B7/005 ,  H04L5/02 ,  H04L5/14 ,  H04L27/26

公开(公告)号：CA2223982C

公开(公告)日：2002-08-06

申请号：CA2223982

申请日：1997-04-11

Applicant: MOTOROLA INC

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

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).

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.

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).

公开(公告)号：EP0861529A4

公开(公告)日：2000-03-08

申请号：EP97921159

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 ,  H04L27/26

CPC classification number: H04W52/146 ,  H04B1/1027 ,  H04L5/023 ,  H04L5/143

Abstract: The present invention provides a system for a method, system (300), subscriber 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 reference 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 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 (320, 330).