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    • 62. 发明授权
    • ROF link system for supporting various services
    • ROF链路系统支持各种业务
    • US07796891B2
    • 2010-09-14
    • US11633838
    • 2006-12-05
    • Han-Lim LeeSeong-Taek HwangByung-Jik KimGyu-Woong LeeHoon KimJae-Hoon LeeYong-Gyoo KimSang-Ho KimSung-Kee Kim
    • Han-Lim LeeSeong-Taek HwangByung-Jik KimGyu-Woong LeeHoon KimJae-Hoon LeeYong-Gyoo KimSang-Ho KimSung-Kee Kim
    • H04B10/00
    • H04B10/25758H04H20/69H04H20/71H04W88/085H04W88/10
    • Disclosed is a radio-over-fiber (ROF) system for supporting various services, the system comprising: a central access platform (CAP) for providing time division duplexing (TDD), frequency division duplexing (FDD), and broadcasting services, converting a TDD downward signal and FDD/broadcasting downward signals into optical signals, respectively, transmitting the converted optical signals to a remote access unit (RAU), converting a TDD upward signal and an FDD upward signal, which have been transmitted as optical signals from the RAU, into electric signals, respectively, and using an optical circulator in order to separate upward and downward signals from each other; and the RAU for converting the TDD downward signal and FDD/broadcasting downward signals transmitted from the CAP into electric signals, respectively, converting the TDD upward signal and FDD upward signal to be transmitted to the CAP into optical signals, respectively, and using an optical circulator in order to separate upward and downward signals from each other, wherein the RAU includes a plurality of signal filtering/separating/combining units, which wirelessly emit the TDD downward signal and FDD/broadcasting downward signals, having been converted into electric signals, through an antenna, and which separate wirelessly-received TDD upward signal and FDD upward signal from each other.
    • 公开了用于支持各种业务的无线电光纤(ROF)系统,该系统包括:用于提供时分双工(TDD),频分双工(FDD)和广播服务的中央接入平台(CAP) TDD向下信号和FDD /广播向下信号分别转换成光信号,将转换后的光信号发送到远程接入单元(RAU),转换已经作为光信号从RAU发送的TDD上行信号和FDD向上信号 分别变成电信号,并使用光循环器,以便彼此分离上下信号; 以及分别将从CAP发送的TDD向下信号和FDD /广播向下信号转换成电信号的RAU,分别将TDD向上信号和FDD向上信号转换为发送到CAP的光信号,并使用光 循环器,以便彼此分离上下信号,其中RAU包括多个信号滤波/分离/组合单元,其经过转换成电信号无线地发射TDD向下信号和FDD /广播向下信号,通过 天线,并且将无线接收的TDD上行信号和FDD上行信号彼此分离。