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1. 发明申请

WO1997041645A1 MULTIPLE USER COMMUNICATION SYSTEM, DEVICE AND METHOD WITH OVERLAPPING UPLINK CARRIER SPECTRA 审中-公开
标题翻译：多用户通信系统，具有重叠上行载波频谱的设备和方法
公开(公告)号：WO1997041645A1
公开(公告)日：1997-11-06
申请号：PCT/US1997006081
申请日：1997-04-11
申请人： MOTOROLA INC.
发明人： MOTOROLA INC. , BAUM, Kevin , NADGAUDA, Nikhil, S. , PETERSON, Roger, Laurin , KELTON, James, Robert
IPC分类号： H04B01/40
CPC分类号： H04W52/146 , H04B1/1027 , H04L5/023 , H04L5/143
摘要： 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).
摘要翻译：本发明提供一种用于方法，系统（300），用户单元（320,330）和用于带宽有效的多用户数字通信系统（300）的基站/前端单元（310）的系统，其有助于多用户反向链路通信使用至少两个重叠带宽用户单元（320,330）的重叠发送信号频谱。重叠带宽用户单元（320,330）接收前向链路信号，每个前向链路信号从正向链路信号和来自前向链路信号的符号定时参考中导出频率参考，并将反向链路信号发送到基站/前端单元（310 ），其接收反向链路信号的复合反向链路信号。每个反向链路信号包括具有不同载波频率的至少一个调制数据载波。每个发送的反向链路信号具有响应于符号定时参考的符号定时，并且反向链路信号的频谱使用至少两个重叠带宽用户单元（320,330）的重叠发射信号频谱重叠。

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