公开(公告)号：US20070147835A1

公开(公告)日：2007-06-28

申请号：US11606666

申请日：2006-11-30

申请人： Sang-Ho Kim ,  Seong-Taek Hwang ,  Kwan-Soo Lee ,  Yun-Je Oh ,  Jae-Hoon Lee

发明人： Sang-Ho Kim ,  Seong-Taek Hwang ,  Kwan-Soo Lee ,  Yun-Je Oh ,  Jae-Hoon Lee

IPC分类号： H04J14/00

CPC分类号： H04J14/0226 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0282 ,  H04J2014/0253

摘要： A method for controlling optical transmitters in a Wavelength Division Multiplexed (WDM)-Passive Optical Network (PON) system includes the steps of: determining the existence of an upward optical signal to control an optical transmitter provided for each corresponding Optical Node Terminal (ONT) to be turned on/off in an Optical Line Termination (OLT); and monitoring the state of a transmission buffer within an Ethernet switch to control a corresponding optical transmitter to be turned on/off in accordance with the state of the transmission buffer in each of the ONTs.

摘要翻译： 一种用于控制波分复用（WDM）无源光网络（PON）系统中的光发射机的方法包括以下步骤：确定存在向上的光信号以控制为每个对应的光节点终端（ONT）提供的光发射机， 在光线路终端（OLT）中打开/关闭; 以及监视以太网交换机内的发送缓冲器的状态，以根据每个ONT中的发送缓冲器的状态来控制相应的光发送器被接通/断开。

公开(公告)号：US07653039B2

公开(公告)日：2010-01-26

申请号：US11356822

申请日：2006-02-17

申请人： Gyu-Woong Lee ,  Kwan-Soo Lee ,  Chang-Sup Shim ,  Yun-Je Oh ,  Jae-Hoon Lee ,  Seong-Taek Hwang

发明人： Gyu-Woong Lee ,  Kwan-Soo Lee ,  Chang-Sup Shim ,  Yun-Je Oh ,  Jae-Hoon Lee ,  Seong-Taek Hwang

IPC分类号： H04W4/00

CPC分类号： H04W92/02 ,  H04B10/2575 ,  H04L63/08 ,  H04W12/06 ,  H04W84/04 ,  H04W84/12 ,  H04W88/08 ,  H04W88/085

摘要： A network system for interworking a Wireless Local Area Network (W-LAN) and a 3rd-Generation (3G) mobile communication network through a Radio-over-Fiber(RoF) link and an authentication method in interworking in the network system are provided. The network system includes a 3G mobile communication network and a W-LAN system. The 3G mobile communication network includes a voice signal processing network connected to a Public Switched Telephone Network (PSTN) for voice call processing with respect to a predetermined mobile terminal, a packet data network for data communication with the predetermined mobile terminal, and a terminal device for communication with the predetermined mobile terminal. The W-LAN system is connected to the packet data network of the 3G mobile communication network to provide a W-LAN service to the predetermined mobile communication terminal. The W-LAN system is implemented in a plurality of Base Transceiver Stations (BTSs) included in the 3G mobile communication network through the RoF link.

摘要翻译： 提供了一种用于通过光纤无线（RoF）链路互通无线局域网（W-LAN）和第三代（3G）移动通信网络的网络系统，以及在网络系统中互通的认证方法。 网络系统包括3G移动通信网络和W-LAN系统。 3G移动通信网络包括连接到公共交换电话网（PSTN）的语音信号处理网络，用于相对于预定移动终端进行语音呼叫处理，用于与预定移动终端进行数据通信的分组数据网络，以及终端设备 用于与预定的移动终端进行通信。 W-LAN系统连接到3G移动通信网络的分组数据网络，以向预定的移动通信终端提供W-LAN服务。 W-LAN系统通过RoF链路在3G移动通信网络中包括的多个基站收发台（BTS）中实现。

公开(公告)号：US20060209800A1

公开(公告)日：2006-09-21

申请号：US11356822

申请日：2006-02-17

申请人： Gyu-Woong Lee ,  Kwan-Soo Lee ,  Chang-Sup Shim ,  Yun-Je Oh ,  Jae-Hoon Lee ,  Seong-Taek Hwang

发明人： Gyu-Woong Lee ,  Kwan-Soo Lee ,  Chang-Sup Shim ,  Yun-Je Oh ,  Jae-Hoon Lee ,  Seong-Taek Hwang

IPC分类号： H04L12/66

CPC分类号： H04W92/02 ,  H04B10/2575 ,  H04L63/08 ,  H04W12/06 ,  H04W84/04 ,  H04W84/12 ,  H04W88/08 ,  H04W88/085

摘要： A network system for interworking a Wireless Local Area Network (W-LAN) and a 3rd-Generation (3G) mobile communication network through a Radio-over-Fiber(RoF) link and an authentication method in interworking in the network system are provided. The network system includes a 3G mobile communication network and a W-LAN system. The 3G mobile communication network includes a voice signal processing network connected to a Public Switched Telephone Network (PSTN) for voice call processing with respect to a predetermined mobile terminal, a packet data network for data communication with the predetermined mobile terminal, and a terminal device for communication with the predetermined mobile terminal. The W-LAN system is connected to the packet data network of the 3G mobile communication network to provide a W-LAN service to the predetermined mobile communication terminal. The W-LAN system is implemented in a plurality of Base Transceiver Stations (BTSs) included in the 3G mobile communication network through the RoF link.

摘要翻译： 一种用于通过光纤无线（RoF）链路与无线局域网（W-LAN）和第三代（3G）移动通信网络互通的网络系统，以及认证方法 提供了网络系统中的互通。 网络系统包括3G移动通信网络和W-LAN系统。 3G移动通信网络包括连接到公共交换电话网（PSTN）的语音信号处理网络，用于相对于预定移动终端进行语音呼叫处理，用于与预定移动终端进行数据通信的分组数据网络，以及终端设备 用于与预定的移动终端进行通信。 W-LAN系统连接到3G移动通信网络的分组数据网络，以向预定的移动通信终端提供W-LAN服务。 W-LAN系统通过RoF链路在3G移动通信网络中包括的多个基站收发台（BTS）中实现。

公开(公告)号：US20080056167A1

公开(公告)日：2008-03-06

申请号：US11737797

申请日：2007-04-20

申请人： Sang-Ho KIM ,  Yun-Je Oh ,  Seong-Taek Hwang ,  Jae-Hun Cho ,  Jae-Hoon Lee

发明人： Sang-Ho KIM ,  Yun-Je Oh ,  Seong-Taek Hwang ,  Jae-Hun Cho ,  Jae-Hoon Lee

IPC分类号： H04L5/14 ,  H04L5/16

CPC分类号： H04B10/25759 ,  H04W88/08 ,  H04W88/085

摘要： A radio-over-fiber (RoF) system and method for controlling a transmission time is provided. In a Time Division Duplex (TDD) wireless communication system comprising a Base Station (BS) having a donor and a remote connected thereto via am optical fiber, upstream and downstream Radio Frequency (RF) signals are transmitted and received, and by reliably transmitting a switch control signal to the remote and simultaneously compensating for a transmission time delay occurring in the optical cable, time synchronization of the upstream and downstream RF signals transmitted and received via antennas of the BS and the remote is controlled, thereby efficiently increasing the performance of a TDD wireless service system.

摘要翻译： 提供了一种用于控制传输时间的无线电光纤（RoF）系统和方法。 在包括具有供体的基站（BS）和经由光纤远程连接的基站（TDD）的时分双工（TDD）无线通信系统中，发送和接收上行和下行射频（RF）信号，并且通过可靠地发送 切换控制信号到远端，并同时补偿在光缆中发生的传输时延，控制通过BS和遥控器的天线发送和接收的上行和下行RF信号的时间同步，从而有效提高 TDD无线服务系统。

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：US20070053311A1

公开(公告)日：2007-03-08

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： H04J3/00

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：US20050069252A1

公开(公告)日：2005-03-31

申请号：US10825813

申请日：2004-04-16

申请人： Seong-Taek Hwang ,  Yun-Je Oh ,  Kwan-Soo Lee

发明人： Seong-Taek Hwang ,  Yun-Je Oh ,  Kwan-Soo Lee

IPC分类号： H01S3/06 ,  G02B6/26 ,  G02B6/42 ,  H01S3/00 ,  H01S3/067 ,  H01S3/094 ,  H01S3/10 ,  H01S3/16 ,  H01S5/06

CPC分类号： H01S3/06754 ,  H01S3/0064 ,  H01S3/06758 ,  H01S3/094011 ,  H01S3/094015 ,  H01S3/094023 ,  H01S3/1608

摘要： A dual-port broadband light source with independently controllable output powers includes a broadband light source having a first gain medium pumped by an input pump light in order to output a first amplified spontaneous emission through both ends thereof. A second gain medium pumped by another input pump light in order to output a second amplified spontaneous emission through both ends thereof. A reflector disposed between the opposite ends of the first and second gain mediums to reflect the input first and second amplified spontaneous emissions. The first and second amplified spontaneous emissions output from the first and second gain mediums are then output to the outside through first and second output terminals.

摘要翻译： 具有独立可控的输出功率的双端口宽带光源包括具有由输入泵浦光泵浦的第一增益介质的宽带光源，以便通过其两端输出第一放大的自发发射。 第二增益介质由另一输入泵浦泵浦，以便通过其两端输出第二放大的自发发射。 设置在第一和第二增益介质的相对端之间的反射器，以反映输入的第一和第二放大的自发辐射。 从第一和第二增益介质输出的第一和第二放大的自发辐射然后通过第一和第二输出端输出到外部。

公开(公告)号：US07043116B2

公开(公告)日：2006-05-09

申请号：US10825813

申请日：2004-04-16

申请人： Seong-Taek Hwang ,  Yun-Je Oh ,  Kwan-Soo Lee

发明人： Seong-Taek Hwang ,  Yun-Je Oh ,  Kwan-Soo Lee

IPC分类号： G02B6/26 ,  H01S3/00

CPC分类号： H01S3/06754 ,  H01S3/0064 ,  H01S3/06758 ,  H01S3/094011 ,  H01S3/094015 ,  H01S3/094023 ,  H01S3/1608

摘要： A dual-port broadband light source with independently controllable output powers includes a broadband light source having a first gain medium pumped by an input pump light in order to output a first amplified spontaneous emission through both ends thereof. A second gain medium pumped by another input pump light in order to output a second amplified spontaneous emission through both ends thereof. A reflector disposed between the opposite ends of the first and second gain mediums to reflect the input first and second amplified spontaneous emissions. The first and second amplified spontaneous emissions output from the first and second gain mediums are then output to the outside through first and second output terminals.

摘要翻译： 具有独立可控的输出功率的双端口宽带光源包括具有由输入泵浦光泵浦的第一增益介质的宽带光源，以便通过其两端输出第一放大的自发发射。 第二增益介质由另一输入泵浦泵浦，以便通过其两端输出第二放大的自发发射。 设置在第一和第二增益介质的相对端之间的反射器，以反映输入的第一和第二放大的自发辐射。 从第一和第二增益介质输出的第一和第二放大的自发辐射然后通过第一和第二输出端输出到外部。

公开(公告)号：US20060177223A1

公开(公告)日：2006-08-10

申请号：US11346973

申请日：2006-02-03

申请人： Seong-Taek Hwang ,  Kwan-Soo Lee ,  Chang-Sup Shim ,  Yun-Je Oh

发明人： Seong-Taek Hwang ,  Kwan-Soo Lee ,  Chang-Sup Shim ,  Yun-Je Oh

IPC分类号： H04J14/00

CPC分类号： H04J14/0282 ,  H04B10/296 ,  H04J14/02 ,  H04J14/0226 ,  H04J14/0227 ,  H04J14/0232 ,  H04J14/0246 ,  H04J14/025

摘要： A passive optical network includes a central office generating multiplexed downstream optical signals, a plurality of subscriber units provided with the downstream optical signals of the corresponding wavelengths, and a remote node for relaying signals between the subscriber units and the central office. The central office comprises a broadband light source for generating a light of gain-clamped wide wavelength band with a gain channel and a plurality of incoherent channels; a plurality of downstream light sources for generating downstream optical signals the wavelengths of which are locked by the incoherent channels of the corresponding wavelengths; and a multiplexer/de-multiplexer for de-multiplexing the incoherent channels and outputting the de-multiplexed channels to the corresponding downstream light source and for multiplexing the upstream optical signals and outputting the multiplexed optical signals.

摘要翻译： 无源光网络包括产生多路复用的下行光信号的中心局，提供有相应波长的下行光信号的多个用户单元和用于在用户单元与中心局之间中继信号的远程节点。 中心局包括宽带光源，用于产生具有增益通道和多个非相干通道的增益钳位宽波段的光; 多个下游光源，用于产生其波长被相应波长的非相干通道锁定的下行光信号; 以及多路复用器/解复用器，用于对非相干信道进行解复用，并将去多路复用的信道输出到相应的下游光源，并用于复用上行光信号并输出​​复用的光信号。

公开(公告)号：US20050163508A1

公开(公告)日：2005-07-28

申请号：US10915152

申请日：2004-08-09

申请人： Seong-Taek Hwang ,  Gyu-Woong Lee ,  Kwan-Soo Lee ,  Yun-Je Oh

发明人： Seong-Taek Hwang ,  Gyu-Woong Lee ,  Kwan-Soo Lee ,  Yun-Je Oh

IPC分类号： H04B10/12 ,  H04J14/02 ,  H04J14/00

CPC分类号： H04J14/02

摘要： A wavelength division multiplexed passive optical network (WDM PON) includes a central office that has: a broadband light source, a first wavelength division multiplexer to spectrum-slice light outputted from the light source, semiconductor optical amplifiers or variable optical attenuators, each modulating an associated one of spectrum-sliced lights in accordance with input data, and a second wavelength division multiplexer to multiplex optical signals respectively outputted from the semiconductor optical amplifiers. A remote node, connected to the central office via a main optical fiber, distributes the optical signals to distribution optical fibers, and, in, turn, to respective optical network units.

摘要翻译： 波分复用无源光网络（WDM PON）包括：中心局，其具有：宽带光源，第一波分复用器，用于从光源输出的频谱切片光，半导体光放大器或可变光衰减器， 根据输入数据关联一个频谱切割的光;以及第二波分复用器，用于复用从半导体光放大器分别输出的光信号。 通过主光纤连接到中心局的远程节点将光信号分配到分配光纤，并且转向相应的光网络单元。