发明申请
US20080260388A1 TIME DIVISION DUPLEXING REMOTE STATION HAVING LOW-NOISE AMPLIFIER SHARED FOR UPLINK AND DOWNLINK OPERATIONS AND WIRED RELAY METHOD USING THE SAME
失效
具有用于上下和下行操作的低噪声放大器的时分双工远程站和使用其的有线继电器方法
- 专利标题: TIME DIVISION DUPLEXING REMOTE STATION HAVING LOW-NOISE AMPLIFIER SHARED FOR UPLINK AND DOWNLINK OPERATIONS AND WIRED RELAY METHOD USING THE SAME
- 专利标题(中): 具有用于上下和下行操作的低噪声放大器的时分双工远程站和使用其的有线继电器方法
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申请号: US12105499申请日: 2008-04-18
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公开(公告)号: US20080260388A1公开(公告)日: 2008-10-23
- 发明人: Sang-Ho Kim , Yun-Je Oh , Seong-Taek Hwang , Han-Lim Lee , Ki-Uk Song
- 申请人: Sang-Ho Kim , Yun-Je Oh , Seong-Taek Hwang , Han-Lim Lee , Ki-Uk Song
- 优先权: KR2007-37913 20070418
- 主分类号: H04B10/00
- IPC分类号: H04B10/00 ; H04J3/00
摘要:
A wired relay method for using a remote station and an apparatus thereof for a Radio over Fiber (RoF) wired relay system supporting a Time Division Duplexing (TDD) wireless communication service, which shares an Low-Noise Amplifier (LNA) for both uplink and downlink operations. The remote station includes a block for dividing each of a downlink optical signal carrying service data and an optical signal carrying transmission/reception control information of the RoF wired relay system, which are input from a base station, a gain controller for separating an uplink Radio Frequency (RF) signal input from an antenna or a portion of a downlink RF signal output from a High-Power Amplifier (HPA) and for monitoring the strength of the input and output RF signals in order to control a gain of the LNA. A converter mutually converts an optical signal and an RF signal, an amplifier amplifies the converted RF signal, and an RF signal flow controller automatically controlls uplink and downlink transmission paths of the amplified RF signal according to a transmission/reception status of the RoF wired relay system.