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1. 发明授权

US08059963B2 Time division duplexing remote station having low-noise amplifier shared for uplink and downlink operations and wired relay method using the same 失效
标题翻译：具有用于上行和下行操作共享的低噪声放大器的时分复用远程站和使用其的有线中继方法
公开(公告)号：US08059963B2
公开(公告)日：2011-11-15
申请号：US12105499
申请日：2008-04-18
申请人： Sang-Ho Kim , Yun-Je Oh , Seong-Taek Hwang , Han-Lim Lee , Ki-Uk Song
发明人： Sang-Ho Kim , Yun-Je Oh , Seong-Taek Hwang , Han-Lim Lee , Ki-Uk Song
IPC分类号： H04B10/00
CPC分类号： H04B10/25753 , H04W4/18 , H04W88/04
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 controls uplink and downlink transmission paths of the amplified RF signal according to a transmission/reception status of the RoF wired relay system.
摘要翻译：一种用于使用远程站的有线中继方法及其装置，用于支持时分双工（TDD）无线通信业务的无线电光纤（RoF）有线中继系统，该无线通信业务共享用于上行链路和/或上行链路的低噪声放大器（LNA）下行操作。远程站包括：用于分配来自基站输入的携带服务数据的下行链路光信号和携带RoF有线中继系统的发送/接收控制信息的光信号的块，用于分离上行链路无线电的增益控制器从天线输入的频率（RF）信号或从大功率放大器（HPA）输出的下行链路RF信号的一部分输入，并用于监视输入和输出RF信号的强度，以便控制LNA的增益。 A转换器相互转换光信号和RF信号，放大器放大转换的RF信号，RF信号流控制器根据RoF有线继电器的发送/接收状态自动控制放大的RF信号的上行链路和下行链路传输路径系统。

2. 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
标题翻译：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
公开(公告)号：US20080260388A1
公开(公告)日：2008-10-23
申请号：US12105499
申请日：2008-04-18
申请人： Sang-Ho Kim , Yun-Je Oh , Seong-Taek Hwang , Han-Lim Lee , Ki-Uk Song
发明人： Sang-Ho Kim , Yun-Je Oh , Seong-Taek Hwang , Han-Lim Lee , Ki-Uk Song
IPC分类号： H04B10/00 , H04J3/00
CPC分类号： H04B10/25753 , H04W4/18 , H04W88/04
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.
摘要翻译：一种用于使用远程站的有线中继方法及其装置，用于支持时分双工（TDD）无线通信业务的无线电光纤（RoF）有线中继系统，该无线通信业务共享用于上行链路和/或上行链路的低噪声放大器（LNA）下行操作。远程站包括：用于分配来自基站输入的携带服务数据的下行链路光信号和携带RoF有线中继系统的发送/接收控制信息的光信号的块，用于分离上行链路无线电的增益控制器从天线输入的频率（RF）信号或从大功率放大器（HPA）输出的下行链路RF信号的一部分输入，并用于监视输入和输出RF信号的强度，以便控制LNA的增益。 A转换器相互转换光信号和RF信号，放大器放大转换的RF信号，RF信号流控制器根据RoF有线继电器的发送/接收状态自动控制放大的RF信号的上行链路和下行链路传输路径系统。

3. 发明申请

US20070053311A1 ROF link apparatus capable of stable TDD wireless service 失效
标题翻译：能够稳定TDD无线服务的ROF链路装置
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。

4. 发明授权

US07733825B2 ROF link apparatus capable of stable TDD wireless service 失效
标题翻译：能够稳定TDD无线服务的ROF链路装置
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。

5. 发明授权

US07474858B2 Duobinary optical transmission device using at least one semiconductor optical amplifier 失效
标题翻译：使用至少一个半导体光放大器的二元光传输装置
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。

6. 发明申请

US20080102881A1 Method and apparatus for adaptively allocating transmission power for beam-forming combined with OSTBCs in a distributed wireless communication system 有权
标题翻译：用于在分布式无线通信系统中自适应地分配与OSTBC组合的波束形成的发射功率的方法和装置
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。

7. 发明申请

US20050058461A1 Optical transmission device 审中-公开
标题翻译：光传输装置
公开(公告)号：US20050058461A1
公开(公告)日：2005-03-17
申请号：US10843233
申请日：2004-05-10
申请人： Han-Lim Lee , Hoon Kim , Yun-Je Oh , Seong-Taek Hwang , Sung-Kee Kim , Gyu-Woong Lee
发明人： Han-Lim Lee , Hoon Kim , Yun-Je Oh , Seong-Taek Hwang , Sung-Kee Kim , Gyu-Woong Lee
IPC分类号： G02F1/035 , H04B10/2507 , H04B10/2513 , H04B10/2537 , H04B10/516 , H04B10/61 , H04B10/04
CPC分类号： H04B10/505 , H04B10/5055 , H04B10/5167
摘要： A duobinary optical transmission device that uses a duobinary optical transmission technique is disclosed. The duobinary optical transmission device may use an X-cut Mach-Zehnder interferometer type modulator. The duobinary optical transmission device includes a light source that outputs a carrier wave. A duobinary encoder encodes an input non-return-to-zero (NRZ) electrical signal. A low pass filter (LPF) converts the encoded signal into a 3-level electrical signal. An optical intensity modulator modulates the phase and light intensity of the carrier wave according to the 3-level electrical signal and outputs a 2-level optical duobinary signal. The optical intensity modulator may be an X-cut optical intensity modulator including a substrate; an optical waveguide formed on the substrate, and an electrode for applying an electric field.
摘要翻译：公开了一种使用双二进制光传输技术的双向光传输装置。双向光传输装置可以使用X切割马赫 - 曾德干涉仪型调制器。二元光传输装置包括输出载波的光源。二进制编码器对输入的不归零（NRZ）电信号进行编码。低通滤波器（LPF）将编码信号转换为3级电信号。光强调制器根据3电平电信号调制载波的相位和光强，并输出2电平的光双二进制信号。光强度调制器可以是包括衬底的X切割光强度调制器; 形成在基板上的光波导和用于施加电场的电极。

8. 发明授权

US06944405B2 Bit-rate-independent optical cross-connect device in optical transmission system 失效
标题翻译：光传输系统中的比特率独立光交叉设备
公开(公告)号：US06944405B2
公开(公告)日：2005-09-13
申请号：US09953637
申请日：2001-09-17
申请人： Han-Lim Lee , Byung-Jik Kim , Jun-Ho Koh , Seong-Taek Hwang , Yun-Je Oh
发明人： Han-Lim Lee , Byung-Jik Kim , Jun-Ho Koh , Seong-Taek Hwang , Yun-Je Oh
IPC分类号： H04B10/00 , H04B10/27 , H04Q3/52 , H04Q11/00 , H04Q11/04 , H04B10/08 , H04B17/00
CPC分类号： H04Q11/0005 , H04Q2011/0016 , H04Q2011/0024 , H04Q2011/0039 , H04Q2011/0045
摘要： This invention provides an optical transmission with a demultiplexer for demultiplexing an input optical signal into optical signals of different channels and a multiplexer for multiplexing the optical signals outputted from the demultiplexer. The optical cross-connect device includes: N BICDR (Bit Rate Independent Clock and Data Recovery) receivers each for receiving the associated optical signals outputted from the demultiplexer, for converting the associated optical signal into an electrical signal and reproducing clocks and data based on the bit rate of the electrical signal; a switchboard with a cross-connect switch for receiving output signals from the respective N BICDR receiver; N bit rate discriminating units for receiving the output signals from the N BICDR receivers, respectively, thereby outputting bit rate discriminating signals associated with the N BICDR receivers, respectively; a temperature sensing unit for outputting a temperature sensing signal; and, a central processing unit for receiving the bit rate discriminating signals from the N bit rate discriminating unit, along with the temperature sensing signal from the temperature sensing unit, for compensating each of the received bit rate discriminating signals with a temperature-dependent bit rate value read out, based on the temperature sensing signal, from a memory, and for controlling the bit rate of the associated BICDR receiver based on the compensated bit rate.
摘要翻译：本发明提供了一种具有解复用器的光传输器，用于将输入光信号解复用为不同信道的光信号，以及复用器，用于复用从解复用器输出的光信号。光交叉设备包括：N个BICDR（比特率独立时钟和数据恢复）接收机，每个接收器用于接收从解复用器输出的相关联的光信号，用于将相关联的光信号转换成电信号，并基于该信号再现时钟和数据比特率的电信号; 具有交叉连接开关的交换机，用于接收来自相应N BICDR接收机的输出信号; N比特率鉴别单元，用于分别从N个BICDR接收机接收输出信号，从而分别输出与N个BICDR接收机相关联的比特率鉴别信号; 用于输出温度感测信号的温度检测单元; 以及用于从温度感测单元接收来自N比特率鉴别单元的比特率鉴别信号的中央处理单元，用于以温度依赖比特率对每个接收的比特率鉴别信号进行补偿基于温度感测信号从存储器读出，并且用于基于补偿的比特率来控制相关联的BICDR接收器的比特率。

9. 发明申请

US20050068209A1 Precoder and optical duo-binary transmission apparatus using the same 失效
标题翻译：预编码器和光二进制二进制传输装置使用
公开(公告)号：US20050068209A1
公开(公告)日：2005-03-31
申请号：US10807048
申请日：2004-03-23
申请人： Sung-Kee Kim , Han-Lim Lee , Yun-Je Oh , Seong-Taek Hwang
发明人： Sung-Kee Kim , Han-Lim Lee , Yun-Je Oh , Seong-Taek Hwang
IPC分类号： H04J3/00 , G11B20/10 , H03M5/06 , H03M13/00 , H04B10/00 , H04B10/516 , H04B10/556 , H04B10/61
CPC分类号： H03M5/06 , G11B20/10 , H03M13/00
摘要： A precoder for an optical duo-binary transmission apparatus disposing the precoder before a time division multiplexer includes a judgment unit for judging whether an odd number or even number of ‘1’s exist in data input signals of N channels inputted at an nth time of channel input. Further included in the precoder is a toggle unit for toggling an output signal of the judgment unit when the judgment is odd, and for determining an output value for one of the channels. The precoder also has an output unit for determining output values of other channels according to a respective data input signal and a predetermined channel from among the N channels.
摘要翻译：用于在时分多路复用器之前配置预编码器的光二元传输装置的预编码器包括判断单元，用于判断在第n时刻输入的N个信道的数据输入信号中是否存在“1”的奇数或偶数的通道输入。进一步包括在预编码器中的是用于当判断为奇数时用于切换判断单元的输出信号并且用于确定一个通道的输出值的切换单元。预编码器还具有输出单元，用于根据相应的数据输入信号和N个信道中的预定信道来确定其它信道的输出值。

10. 发明授权

US07362978B2 Duobinary optical transmission apparatus 失效
标题翻译：双色光传输装置
公开(公告)号：US07362978B2
公开(公告)日：2008-04-22
申请号：US10458150
申请日：2003-06-10
申请人： Sung-Kee Kim , Han-Lim Lee , Yun-Je Oh , Seong-Taek Hwang
发明人： Sung-Kee Kim , Han-Lim Lee , Yun-Je Oh , Seong-Taek Hwang
IPC分类号： H04B10/04 , H04B10/12
CPC分类号： H04B10/503 , H04B10/505 , H04B10/5055 , H04B10/5167
摘要： Disclosed is a duobinary optical transmission apparatus. The duobinary optical transmission apparatus uses the crossed phase characteristics of a duobinary signal without using a feedback-type precoder and an electric LPF, and is thereby not affected by Pseudo-Random Bit Sequence (PRBS), and is very resistant to wavelength division characteristics. In addition to a drive amplifier, a Mach-Zehnder-interferometer-type optical intensity modulator (MZ MOD), and a laser source for generating a carrier wave, the duobinary optical transmission apparatus further includes a toggle flip-flop (T.FF) and an AND gate to separate a group of ‘1’ from input data signal in such a way that the input data signal is modulated to make each signal have a different phase.
摘要翻译：公开了一种二元光传输装置。双二进制光传输装置使用双二进制信号的交叉相位特性，而不使用反馈型预编码器和电LPF，因此不受伪随机比特序列（PRBS）的影响，并且非常耐波分复用特性。除了驱动放大器，马赫 - 曾德干涉仪型光强度调制器（MZ MOD）和用于产生载波的激光源之外，双二进制光传输装置还包括一个切换触发器（T.FF）以及与门分离一组“1”与输入数据信号，使得输入数据信号被调制以使每个信号具有不同的相位。

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