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    • 1. 发明申请
    • Remote access unit and radio-over-fiber network using same
    • 远程访问单元和使用相同的光纤网络
    • US20070133995A1
    • 2007-06-14
    • US11607700
    • 2006-12-01
    • Jae-Hoon LeeSeong-Taek HwangByung-Jik KimGyu-Woong LeeHoon KimSang-Ho KimYong-Gyoo KimSung-Kee KimHan-Lim Lee
    • Jae-Hoon LeeSeong-Taek HwangByung-Jik KimGyu-Woong LeeHoon KimSang-Ho KimYong-Gyoo KimSung-Kee KimHan-Lim Lee
    • H04B10/00
    • H04B10/25758
    • A remote access unit (RAU) apparatus, coupled to a central station (CS) of an RoF network through at least one optical fiber, and which RAU apparatus includes at least one antenna, includes: first and second antenna ports coupled to the at least one antenna; first and second optical fiber ports coupled to the at least one optical fiber; a first coupler for decoupling a first downstream signal of a first duplexing method and a second downstream signal of a second duplexing method, which are input through the first optical fiber port; a circulator for outputting the first downstream signal input from the first coupler to the first antenna port and outputting a first upstream signal of the first duplexing method input from the first antenna port to the second optical fiber port; and a second coupler for outputting the second downstream signal input from the first coupler to the second antenna port and outputting a second upstream signal of the second duplexing method input from the second antenna port to the second optical fiber port.
    • 一种远程接入单元(RAU)装置,其通过至少一个光纤耦合到RoF网络的中心站(CS),并且所述RAU设备包括至少一个天线,包括:耦合到所述至少一个天线的第一和第二天线端口 一个天线 耦合到所述至少一个光纤的第一和第二光纤端口; 用于去耦第一双工方法的第一下行信号和通过第一光纤端口输入的第二双工方法的第二下行信号的第一耦合器; 输出从第一耦合器输入的第一下行信号到第一天线端口的循环器,并输出从第一天线端口输入到第二光纤端口的第一双工方式的第一上行信号; 以及第二耦合器,用于将从第一耦合器输入的第二下行信号输出到第二天线端口,并输出从第二天线端口输入到第二光纤端口的第二双工方法的第二上行信号。
    • 2. 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。
    • 5. 发明授权
    • Remote access unit and radio-over-fiber network using same
    • 远程访问单元和使用相同的光纤网络
    • US07660531B2
    • 2010-02-09
    • US11607700
    • 2006-12-01
    • Jae-Hoon LeeSeong-Taek HwangByung-Jik KimGyu-Woong LeeHoon KimSang-Ho KimYong-Gyoo KimSung-Kee KimHan-Lim Lee
    • Jae-Hoon LeeSeong-Taek HwangByung-Jik KimGyu-Woong LeeHoon KimSang-Ho KimYong-Gyoo KimSung-Kee KimHan-Lim Lee
    • H04B10/24H04J4/00H04M1/00
    • H04B10/25758
    • A remote access unit (RAU) apparatus, coupled to a central station (CS) of an RoF network through at least one optical fiber, and which RAU apparatus includes at least one antenna, includes: first and second antenna ports coupled to the at least one antenna; first and second optical fiber ports coupled to the at least one optical fiber; a first coupler for decoupling a first downstream signal of a first duplexing method and a second downstream signal of a second duplexing method, which are input through the first optical fiber port; a circulator for outputting the first downstream signal input from the first coupler to the first antenna port and outputting a first upstream signal of the first duplexing method input from the first antenna port to the second optical fiber port; and a second coupler for outputting the second downstream signal input from the first coupler to the second antenna port and outputting a second upstream signal of the second duplexing method input from the second antenna port to the second optical fiber port.
    • 一种远程接入单元(RAU)装置,其通过至少一个光纤耦合到RoF网络的中心站(CS),并且所述RAU设备包括至少一个天线,包括:耦合到所述至少一个天线的第一和第二天线端口 一个天线 耦合到所述至少一个光纤的第一和第二光纤端口; 用于去耦第一双工方法的第一下行信号和通过第一光纤端口输入的第二双工方法的第二下行信号的第一耦合器; 输出从第一耦合器输入的第一下行信号到第一天线端口的循环器,并输出从第一天线端口输入到第二光纤端口的第一双工方式的第一上行信号; 以及第二耦合器,用于将从第一耦合器输入的第二下行信号输出到第二天线端口,并输出从第二天线端口输入到第二光纤端口的第二双工方法的第二上行信号。
    • 6. 发明申请
    • Method and system for controlling remote in a TDD optical repeater
    • 用于在TDD光中继器中控制远端的方法和系统
    • US20080159743A1
    • 2008-07-03
    • US11983483
    • 2007-11-09
    • Jae-Hoon LeeSeong-Taek HwangByung-Jik KimSang-Ho Kim
    • Jae-Hoon LeeSeong-Taek HwangByung-Jik KimSang-Ho Kim
    • H04J14/02H04J14/08
    • H04J14/02H04J3/0682H04W88/085
    • A method and apparatus for transmitting data to an Access Point (AP) and a Mobile Station (MS) in a Time Division Duplex (TDD) optical repeater. A main donor generates a control frame for controlling a remote, upon receipt of data from the AP, and transmits the control frame to the remote during a non-downlink transmission period. The remote analyzes the control frame received from the main donor, detects sync information about a downlink signal and an uplink signal, and remote control information from the analyzed control frame, performs a control operation according to the detected remote control information, and generates a status frame for notifying the main donor of the status of the remote upon receipt of data from the MS. The status frame is transmitted from the remote to the main donor during a non-uplink transmission period.
    • 一种用于向时分双工(TDD)光中继器中的接入点(AP)和移动台(MS)发送数据的方法和装置。 在从AP接收到数据时,主要供体生成用于控制远程的控制帧,并且在非下行链路传输周期期间将控制帧发送到远程。 遥控器分析从主供体接收到的控制帧,检测关于下行链路信号和上行链路信号的同步信息,以及来自分析的控制帧的遥控信息,根据检测到的遥控信息执行控制操作,并且生成状态 框架,用于在从MS接收到数据时通知主要供体的远程状态。 在非上行链路传输期间,状态帧从远端发送到主供体。
    • 9. 发明申请
    • ROF link apparatus for selecting IF band to process service signals through MMF and method for selecting IF band
    • 用于通过MMF选择IF频带以处理服务信号的ROF链路装置和用于选择IF频带的方法
    • US20070046836A1
    • 2007-03-01
    • US11504858
    • 2006-08-16
    • Sung-Kee KimSeong-Taek HwangByung-Jik KimSang-Ho KimGyu-Woong LeeJae-Hoon LeeYong-Gyoo KimHan-Lim LeeHoon Kim
    • Sung-Kee KimSeong-Taek HwangByung-Jik KimSang-Ho KimGyu-Woong LeeJae-Hoon LeeYong-Gyoo KimHan-Lim LeeHoon Kim
    • H04N5/50
    • H04B10/2575
    • Disclosed is an ROF link apparatus for selecting an IF band in order to process various service signals through an MMF, which including transmitters for receiving the service signals, performing IF modulation for the service signals, and transferring the modulated IF signals, a first controller for scanning frequency characteristics of the MMF, searching for flat frequency bands, and transferring information regarding the flat frequency band, thereby controlling IF modulation to be performed, a link unit for combining the IF signals with output signals of the first controller, converting the combined signals into optical signals, transmitting the optical signals, converting the optical signals into electrical signals, and splitting the electrical signals, a second controller for receiving the output signals of the first controller, detecting information regarding the flat frequency band, and transferring the information to receivers, thereby controlling modulation to be performed, and the receivers for receiving the IF modulated signals, receiving the information from the second controller, and performing RF modulation.
    • 公开了一种用于选择IF频带以便通过MMF处理各种服务信号的ROF链路装置,该MMF包括用于接收服务信号的发射机,对服务信号执行IF调制,以及传送调制的IF信号,第一控制器 MMF的扫描频率特性,搜索平坦频带,以及传送关于平坦频带的信息,由此控制要执行的IF调制;用于将IF信号与第一控制器的输出信号组合的链路单元,转换组合信号 传输光信号,将光信号转换为电信号,分割电信号;第二控制器,用于接收第一控制器的输出信号,检测关于平坦频带的信息,以及将信息传送到接收机 ,从而控制要进行的调制 用于接收IF调制信号的接收机,从第二控制器接收信息,并执行RF调制。