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：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：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：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：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。

公开(公告)号：US20060189354A1

公开(公告)日：2006-08-24

申请号：US11357650

申请日：2006-02-17

申请人： Gyu-Woong Lee ,  Kwan-Soo Lee ,  Chang-Sup Shim ,  Yun-Je Oh ,  Yong-Gyoo Kim ,  Seong-Taek Hwang

发明人： Gyu-Woong Lee ,  Kwan-Soo Lee ,  Chang-Sup Shim ,  Yun-Je Oh ,  Yong-Gyoo Kim ,  Seong-Taek Hwang

IPC分类号： H04B1/38 ,  H04M1/00

CPC分类号： H04W88/10 ,  H04W92/20

摘要： A Base Transceiver Station (BTS) for interworking a Wireless Local Area Network (W-LAN) and a mobile communication network through a Radio-over-Fiber (RoF) link is provided. The BTS having mobile and fixed wireless service distribution functions includes a Wireless Local Area Network Access Point (W-LAN AP), a wireless service function block, a Radio Frequency (RF) converter, and an optical transmitter. The wireless service function block performs transmission/reception to/from a predetermined mobile terminal via a connection for the voice call communication and data communication with an external Base Station Controller (BSC). The RF converter performs a data communication connection with the external BSC, up-converts data from the BSC into W-LAN frequency band data, and down-converts data to the BSC into baseband data. The optical transmitter transmits the up-converted data of the packet data RF converter to the W-LAN AP through a RoF link.

摘要翻译： 提供了一种用于通过无线光纤（RoF）链路互联无线局域网（W-LAN）和移动通信网络的基站收发台（BTS）。 具有移动和固定无线业务分配功能的BTS包括无线局域网接入点（W-LAN AP），无线业务功能块，射频（RF）转换器和光发射机。 无线服务功能块经由用于语音呼叫通信的连接和与外部基站控制器（BSC）的数据通信的预定移动终端执行发送/接收。 RF转换器执行与外部BSC的数据通信连接，将来自BSC的数据上变频为W-LAN频带数据，并将数据下变频为基带数据。 光发射机通过RoF链路将分组数据RF转换器的上转换数据发送到W-LAN AP。

公开(公告)号：US07474858B2

公开(公告)日：2009-01-06

申请号：US10849070

申请日：2004-05-19

申请人： Han-Lim Lee ,  Gyu-Woong Lee ,  Yun-Je Oh ,  Seong-Taek Hwang

发明人： Han-Lim Lee ,  Gyu-Woong Lee ,  Yun-Je Oh ,  Seong-Taek Hwang

IPC分类号： H04B10/00

CPC分类号： H04B10/505 ,  H04B10/5055 ,  H04B10/508

摘要： A duobinary optical transmission device provides duobinary optical transmission with improved quality by a technique that does not require an electrical low pass filter LPF.A duobinary optical transmission device includes at least one semiconductor optical amplifier (SOA). A light source outputs a carrier wave as an optical signal. A precoder encodes an input of a non-return-to-zero (NRZ) electrical signal. An interferometer type semiconductor optical amplification unit modulates the carrier wave according to a change of an applied bias current coupled to the encoded signal. An optical band pass filter (OBPF) receives the phase-modulated optical signal from the semiconductor optical amplification unit, filters the received phase-modulated optical signal according to a designated band, and outputs an optical duobinary signal.

摘要翻译： 双二进制光传输装置通过不需要电气低通滤波器LPF的技术提供具有改进质量的双向光传输。双二进制光传输装置包括至少一个半导体光放大器（SOA）。 光源输出载波作为光信号。 预编码器对不归零（NRZ）电信号的输入进行编码。 干涉仪型半导体光放大单元根据耦合到编码信号的施加的偏置电流的变化来调制载波。 光带通滤波器（OBPF）从半导体光放大单元接收相位调制光信号，根据指定频带对接收的相位调制光信号进行滤波，并输出光双二进制信号。

公开(公告)号：US20080102881A1

公开(公告)日：2008-05-01

申请号：US11977612

申请日：2007-10-25

申请人： Shuangfeng Han ,  Yun-Je Oh ,  Seong-Taek Hwang ,  Byung-Jik Kim ,  Han-Lim Lee

发明人： Shuangfeng Han ,  Yun-Je Oh ,  Seong-Taek Hwang ,  Byung-Jik Kim ,  Han-Lim Lee

IPC分类号： H04Q7/20 ,  H04M1/00

CPC分类号： H01Q3/30 ,  H04B7/0443 ,  H04B7/0669 ,  H04B7/0691 ,  H04W52/346 ,  H04W52/42

摘要： An apparatus that adaptively allocates transmission power for beam-forming combined with orthogonal space time block codes in a distributed wireless communication system, the apparatus including: sub-arrays for beam-forming, which are geographically distributed and each of which includes a plurality of distributed antennas placed in random groups. A central processing unit provides predetermined combinable power allocation schemes according to subsets in a plurality of the sub-arrays, identifying performances of the schemes by using information on large-scale fading of each of the sub-arrays fed back from a receiving party, setting a subset having best performance as an optimal subset according to the identified performances, and performing power allocation according thereto.

摘要翻译： 一种在分布式无线通信系统中自适应地分配与正交空间时间块码组合的波束成形的发射功率的装置，该装置包括：地理分布的波束形成子阵列，每个子阵列包括多个分布式 天线放置在随机组中。 中央处理单元根据多个子阵列中的子集提供预定的可组合功率分配方案，通过使用关于从接收方反馈的每个子阵列的大规模衰落的信息来识别方案的性能，设置 根据所识别的性能，具有作为最佳子集的最佳性能的子集，以及根据所识别的性能执行功率分配。