公开(公告)号：US20070133995A1

公开(公告)日：2007-06-14

申请号：US11607700

申请日：2006-12-01

申请人： Jae-Hoon Lee ,  Seong-Taek Hwang ,  Byung-Jik Kim ,  Gyu-Woong Lee ,  Hoon Kim ,  Sang-Ho Kim ,  Yong-Gyoo Kim ,  Sung-Kee Kim ,  Han-Lim Lee

发明人： Jae-Hoon Lee ,  Seong-Taek Hwang ,  Byung-Jik Kim ,  Gyu-Woong Lee ,  Hoon Kim ,  Sang-Ho Kim ,  Yong-Gyoo Kim ,  Sung-Kee Kim ,  Han-Lim Lee

IPC分类号： H04B10/00

CPC分类号： H04B10/25758

摘要： 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.

摘要翻译： 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。

公开(公告)号：US07224506B2

公开(公告)日：2007-05-29

申请号：US11360076

申请日：2006-02-23

申请人： Sung-Kee Kim ,  Hoon Kim ,  Han-Lim Lee ,  Seong-Taek Hwang

发明人： Sung-Kee Kim ,  Hoon Kim ,  Han-Lim Lee ,  Seong-Taek Hwang

IPC分类号： G02F1/01

CPC分类号： G02F1/2255

摘要： A single side band modulation device includes a first Mach Zehnder interferometer and a second Mach Zehnder interferometer. The first Mach Zehnder interferometer includes at least two output arms, and the second Mach Zehnder interferometer includes at least two output arms. Terminals of the output arms are connected with one another.

摘要翻译： 单边带调制装置包括第一马赫策德尔干涉仪和第二马赫曾德尔干涉仪。 第一马赫策德尔干涉仪包括至少两个输出臂，第二马赫策德尔干涉仪包括至少两个输出臂。 输出臂的端子彼此连接。

公开(公告)号：US08041222B2

公开(公告)日：2011-10-18

申请号：US11953911

申请日：2007-12-11

申请人： Han-Lim Lee ,  Hoon Kim ,  Seong-Taek Hwang

发明人： Han-Lim Lee ,  Hoon Kim ,  Seong-Taek Hwang

IPC分类号： H04B10/00

CPC分类号： H04J14/02 ,  H04B10/25758 ,  H04W88/085

摘要： A radio over fiber link apparatus for transmitting/receiving radio frequency up/downlink signals in a TDD mobile communication system. The radio over fiber link apparatus includes a center site for receiving radio frequency signals from an access point of the mobile communication system. The center site has a first electro-optic converter for converting the radio frequency signals into optical signals, bias control of the first electro-optic converter being performed based on the switching of TDD signals; and a remote for transmitting the radio frequency signals to a mobile communication terminal through an antenna. The remote site has a first photoelectric converter for converting the optical signals transmitted through an optical fiber from the center site into radio frequency signals.

摘要翻译： 一种用于在TDD移动通信系统中发送/接收射频上行/下行链路信号的无线电光纤链路装置。 光纤链路装置的无线电装置包括用于从移动通信系统的接入点接收射频信号的中心站点。 中心站点具有用于将射频信号转换为光信号的第一电光转换器，基于TDD信号的切换执行第一电光转换器的偏置控制; 以及用于通过天线将射频信号发送到移动通信终端的遥控器。 远程站点具有第一光电转换器，用于将通过光纤传输的光信号从中心位置转换成射频信号。

公开(公告)号：US07733825B2

公开(公告)日：2010-06-08

申请号：US11514440

申请日：2006-09-01

申请人： Sang-Ho Kim ,  Yun-Je Oh ,  Seong-Taek Hwang ,  Byung-Jik Kim ,  Gyu-Woong Lee ,  Hoon Kim ,  Sung-Kee Kim ,  Han-Lim Lee ,  Jae-Hoon Lee ,  Yong-Gyoo Kim ,  Dae-Eun Choi

发明人： Sang-Ho Kim ,  Yun-Je Oh ,  Seong-Taek Hwang ,  Byung-Jik Kim ,  Gyu-Woong Lee ,  Hoon Kim ,  Sung-Kee Kim ,  Han-Lim Lee ,  Jae-Hoon Lee ,  Yong-Gyoo Kim ,  Dae-Eun Choi

IPC分类号： H04W4/00 ,  H04L12/56

CPC分类号： H04W88/085

摘要： A radio over fiber (ROF) link apparatus capable of a stable TDD wireless service for a time division duplexing (TDD) baseband signal includes a central access platform (CAP) for receiving various kinds of data including the TDD baseband signal from upper layers, multiplexing the data, electro-optically converting the multiplexed data, and transmitting the converted data as downstream data through an optical fiber, and opto-electrically converting upstream data received through the optical fiber, demultiplexing the converted upstream data, and transmitting the demultiplexed upstream data to the respective upper layers, and a remote access unit (RAU) for receiving the downstream data through the optical fiber, opto-electrically converting the received downstream data to the multiplexed data, demultiplexing the multiplexed data, performing a wireless access process of the demultiplexed data, and transmitting the wireless access processed data to a wireless local area network (WLAN) service terminal through an antenna.

摘要翻译： 能够对TDD时基双工（TDD）基带信号进行稳定的TDD无线业务的无线电光纤（ROF）链路装置包括用于从上层接收包括TDD基带信号的各种数据的中央接入平台（CAP） 数据，电光转换多路复用数据，并通过光纤将转换后的数据作为下行数据发送，并对通过光纤接收的上行数据进行光电转换，对转换的上行数据进行解复用，并将解复用的上行数据发送到 各自的上层以及用于通过光纤接收下游数据的远程访问单元（RAU），将接收到的下游数据光电转换为多路复用数据，解复用多路复用数据，执行解复用数据的无线接入处理 ，并将无线接入处理的数据发送到无线局域网（WLAN）服务 e端子通过天线。

公开(公告)号：US20080145061A1

公开(公告)日：2008-06-19

申请号：US11953911

申请日：2007-12-11

申请人： Han-Lim LEE ,  Hoon Kim ,  Seong-Taek Hwang

发明人： Han-Lim LEE ,  Hoon Kim ,  Seong-Taek Hwang

IPC分类号： H04B10/00 ,  H04J3/00

CPC分类号： H04J14/02 ,  H04B10/25758 ,  H04W88/085

摘要： A radio over fiber link apparatus for transmitting/receiving radio frequency up/downlink signals in a TDD mobile communication system. The radio over fiber link apparatus includes a center site for receiving radio frequency signals from an access point of the mobile communication system. The center site has a first electro-optic converter for converting the radio frequency signals into optical signals, bias control of the first electro-optic converter being performed based on the switching of TDD signals; and a remote for transmitting the radio frequency signals to a mobile communication terminal through an antenna. The remote site has a first photoelectric converter for converting the optical signals transmitted through an optical fiber from the center site into radio frequency signals.

摘要翻译： 一种用于在TDD移动通信系统中发送/接收射频上行/下行链路信号的无线电光纤链路装置。 光纤链路装置的无线电设备包括用于从移动通信系统的接入点接收射频信号的中心站点。 中心站点具有用于将射频信号转换为光信号的第一电光转换器，基于TDD信号的切换执行第一电光转换器的偏置控制; 以及用于通过天线将射频信号发送到移动通信终端的遥控器。 远程站点具有第一光电转换器，用于将通过光纤传输的光信号从中心位置转换成射频信号。

公开(公告)号：US20070147273A1

公开(公告)日：2007-06-28

申请号：US11633838

申请日：2006-12-05

申请人： Han-Lim Lee ,  Seong-Taek Hwang ,  Byung-Jik Kim ,  Gyu-Woong Lee ,  Hoon Kim ,  Jae-Hoon Lee ,  Yong-Gyoo Kim ,  Sang-Ho Kim ,  Sung-Kee Kim

发明人： Han-Lim Lee ,  Seong-Taek Hwang ,  Byung-Jik Kim ,  Gyu-Woong Lee ,  Hoon Kim ,  Jae-Hoon Lee ,  Yong-Gyoo Kim ,  Sang-Ho Kim ,  Sung-Kee Kim

IPC分类号： H04J3/00

CPC分类号： H04B10/25758 ,  H04H20/69 ,  H04H20/71 ,  H04W88/085 ,  H04W88/10

摘要： 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.

摘要翻译： 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。

公开(公告)号：US20070140699A1

公开(公告)日：2007-06-21

申请号：US11639965

申请日：2006-12-15

申请人： Sung-Kee Kim ,  Hoon Kim ,  Han-Lim Lee ,  Seong-Taek Hwang

发明人： Sung-Kee Kim ,  Hoon Kim ,  Han-Lim Lee ,  Seong-Taek Hwang

IPC分类号： H04B10/00

CPC分类号： H04B10/2581 ,  H04B10/25752

摘要： Disclosed is a method of setting a signal band of a Radio-Over-Fiber (ROF) link device using a Multi-Mode Fiber (MMF), which includes the steps of dividing a preset band of the entire frequency band of the MMF as a plurality of frequency slots to preset a transmission band in a transmitting side device, sequentially sweeping a plurality of reference frequencies predetermined for each transmission band of the plurality of the frequency slots to only the bands of the corresponding frequency slots, identifying the possibility of signal transmission for each of the plurality of frequency slots in accordance with transmission quality information transmitted from a receiving side to set a transmission signal band, detecting the quality of a signal received for the corresponding frequency slot when sweeping a frequency for each of the plurality of frequency slots in the receiving side device, and transmitting the transmission quality information to the transmitting side device in accordance with the detected signal quality.

摘要翻译： 公开了使用多模光纤（MMF）设置无线光纤（ROF）链路装置的信号频带的方法，其包括以下步骤：将MMF的整个频带的预置频带划分为 多个频率时隙，以在发送侧设备中预设传输频带，将预定的多个频率段中的每个传输频带的多个参考频率顺序地扫描到相应频率的频带，以识别信号传输的可能性 根据从接收侧发送的传输质量信息来设置发送信号频带的多个频率间隙中的每一个，当扫描多个频率槽中的每一个频率的频率时，检测对于相应的时隙接收的信号的质量 在接收侧设备中，并根据w向发送侧设备发送传输质量信息 检测信号质量。

公开(公告)号：US20070024949A1

公开(公告)日：2007-02-01

申请号：US11360076

申请日：2006-02-23

申请人： Sung-Kee Kim ,  Hoon Kim ,  Han-Lim Lee ,  Seong-Taek Hwang

发明人： Sung-Kee Kim ,  Hoon Kim ,  Han-Lim Lee ,  Seong-Taek Hwang

IPC分类号： G02F1/01

CPC分类号： G02F1/2255

摘要： A single side band modulation device includes a first Mach Zehnder interferometer and a second Mach Zehnder interferometer. The first Mach Zehnder interferometer includes at least two output arms, and the second Mach Zehnder interferometer includes at least two output arms. Terminals of the output arms are connected with one another.

摘要翻译： 单边带调制装置包括第一马赫策德尔干涉仪和第二马赫曾德尔干涉仪。 第一马赫策德尔干涉仪包括至少两个输出臂，第二马赫策德尔干涉仪包括至少两个输出臂。 输出臂的端子彼此连接。

公开(公告)号：US20060083519A1

公开(公告)日：2006-04-20

申请号：US11240072

申请日：2005-09-30

申请人： Han-Lim Lee ,  Hoon Kim ,  Seong-Taek Hwang

发明人： Han-Lim Lee ,  Hoon Kim ,  Seong-Taek Hwang

IPC分类号： H04B10/04

CPC分类号： H04B10/5167 ,  H04B10/505 ,  H04B10/5055 ,  H04B10/5162 ,  H04B2210/254

摘要： A chirped RZ-AMI optical transmitter includes a first logic gate for receiving a first signal obtained by pre-coding binary data and a second signal having a waveform obtained by inverting and delaying the first signal, and outputting a third signal obtained by logically operating on the first and second signals. A second logic gate receives a fourth signal having a waveform obtained by inverting the first signal, and a fifth signal having a waveform obtained by delaying the first signal. The second logic gate outputs a sixth signal obtained by logically operating on the fourth and fifth signals. A Mach-Zehnder Modulator (MZM) modulates an input light according to the third and sixth signals and outputs an RZ-AMI optical signal.

摘要翻译： 啁啾RZ-AMI光发射机包括：第一逻辑门，用于接收通过预编码二进制数据获得的第一信号;以及第二信号，具有通过反相和延迟第一信号获得的波形，并输出通过逻辑运算获得的第三信号 第一和第二信号。 第二逻辑门接收具有通过反转第一信号而获得的波形的第四信号，以及具有通过延迟第一信号而获得的波形的第五信号。 第二逻辑门输出通过对第四和第五信号进行逻辑运算获得的第六信号。 马赫曾德调制器（MZM）根据第三和第六信号调制输入光，并输出RZ-AMI光信号。

公开(公告)号：US07796891B2

公开(公告)日：2010-09-14

申请号：US11633838

申请日：2006-12-05

申请人： Han-Lim Lee ,  Seong-Taek Hwang ,  Byung-Jik Kim ,  Gyu-Woong Lee ,  Hoon Kim ,  Jae-Hoon Lee ,  Yong-Gyoo Kim ,  Sang-Ho Kim ,  Sung-Kee Kim

发明人： Han-Lim Lee ,  Seong-Taek Hwang ,  Byung-Jik Kim ,  Gyu-Woong Lee ,  Hoon Kim ,  Jae-Hoon Lee ,  Yong-Gyoo Kim ,  Sang-Ho Kim ,  Sung-Kee Kim

IPC分类号： H04B10/00

CPC分类号： H04B10/25758 ,  H04H20/69 ,  H04H20/71 ,  H04W88/085 ,  H04W88/10

摘要： 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.

摘要翻译： 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。