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41. 发明授权

US07450860B2 Apparatus and method for frequency-shift-keying optical transmission 失效
标题翻译：用于频移键控光传输的装置和方法
公开(公告)号：US07450860B2
公开(公告)日：2008-11-11
申请号：US11147705
申请日：2005-06-08
申请人： Hoon Kim , Yun-Je Oh , Seong-Taek Hwang
发明人： Hoon Kim , Yun-Je Oh , Seong-Taek Hwang
IPC分类号： H04B10/04 , H04B10/12
CPC分类号： H04B10/505 , H04B10/5051 , H04B10/5563
摘要： An optical transmission apparatus employing an FSK scheme is disclosed. The optical transmission apparatus includes a light generator arranged to generate a first tone signal having a first frequency and a second tone signal having a second frequency. The optical transmission apparatus also includes a light modulator including a second modulator for selectively outputting one of the first tone signal and the second tone signal input from the light generator according to input data.
摘要翻译：公开了一种采用FSK方案的光传输装置。光传输装置包括发生器，其被配置为产生具有第一频率的第一音调信号和具有第二频率的第二音调信号。光传输装置还包括光调制器，其包括第二调制器，用于根据输入数据选择性地输出从光发生器输入的第一音调信号和第二音调信号中的一个。

42. 发明授权

US07450849B2 Wavelength-division multiplexing passive optical network 失效
标题翻译：波分复用无源光网络
公开(公告)号：US07450849B2
公开(公告)日：2008-11-11
申请号：US11197176
申请日：2005-08-04
申请人： Sang-Ho Kim , Chang-Sup Shim , Yun-Je Oh , Seong-Taek Hwang
发明人： Sang-Ho Kim , Chang-Sup Shim , Yun-Je Oh , Seong-Taek Hwang
IPC分类号： H04J14/00
CPC分类号： H04J14/0227 , H04B10/071 , H04J14/0226 , H04J14/0246 , H04J14/025 , H04J14/0282
摘要： A wavelength-division multiplexing passive optical network (WDM-PON) comprising a central office for generating monitor light and multiplexed downstream optical signals to be out and detecting upstream optical signals, the central office including a signal monitoring unit monitoring based on fed-back monitor light if the wavelengths of the upstream optical signals and the wavelengths of the downstream optical signals change, a plurality of subscriber units for detecting corresponding downstream optical signals and generating upstream optical signals, a remote node for reflecting the monitor light to the central office, de-multiplexing multiplexed downstream optical signals so as to output the downstream optical signals to the corresponding subscriber units, and multiplexing the upstream optical signals so as to output the upstream optical signals to the central office, a first optical path for linking the central office to the remote node, and a plurality of second optical paths for linking the remote node to the subscriber units, respectively.
摘要翻译：一种波分复用无源光网络（WDM-PON），包括用于产生监控光的中心局和多路复用的下行光信号，以便检测上行光信号，该中心局包括基于反馈监视器的信号监控单元如果上游光信号的波长和下游光信号的波长发生变化，则用于检测相应的下行光信号并产生上行光信号的多个用户单元，用于将监控光反射到中心局的远端节点复用下行光信号，以将下行光信号输出到对应的用户单元，并复用上行光信号，以将上行光信号输出到中心局;第一光路，用于将中心局连接到远程节点和用于li的多个第二光路将远程节点分别分配给用户单元。

43. 发明申请

US20080198906A1 APPARATUS AND METHOD FOR INCREASING CELL CAPACITY THROUGH OPTIONAL SIGNAL COMBINING BETWEEN RELAY STATIONS IN A CELLULAR SYSTEM USING WIRED RELAY STATIONS 有权
标题翻译：通过使用有线继电器站的细胞系统中继电站之间组合可选信号增加细胞容量的装置和方法
公开(公告)号：US20080198906A1
公开(公告)日：2008-08-21
申请号：US11965804
申请日：2007-12-28
申请人： Byung-Jik KIM , Seong-Taek Hwang , Won-Jin Sung , Jin-Woo Choe , Jong-Hyun Park , Jong-Hyun Kim
发明人： Byung-Jik KIM , Seong-Taek Hwang , Won-Jin Sung , Jin-Woo Choe , Jong-Hyun Park , Jong-Hyun Kim
IPC分类号： H04B7/17 , H04B7/14
CPC分类号： H04B7/026
摘要： A method, apparatus and system for increasing cell capacity through optional signal combining between Relay Stations (RSs) in a cellular system using wired RSs is disclosed. The method includes receiving, by a Base Station (BS), an average Carrier-to-Interference ratio (C/I) value of transmission signals from Mobile Stations (MSs) located inside each coverage area, being fed back from the RSs or the MSs in its corresponding cell; classifying the MSs into two groups according to the C/I value; performing resource allocation satisfying a minimum data rate from a corresponding RS, for MSs belonging to a group having a C/I value greater than a preset threshold Γ among the classified groups; performing resource allocation by applying an optional signal combining scheme taking into account two RSs having a highest C/I value, for MSs belonging to a group having a C/I value below the threshold among the classified groups; and allocating all unallocated subchannels of each individual RS in an order of an MS having a high C/I value among MSs of a corresponding RS until there is no more unallocated subchannel of each RS.
摘要翻译：公开了一种通过在使用有线RS的蜂窝系统中的继电器站（RS）之间的可选信号组合来增加小区容量的方法，装置和系统。该方法包括由基站（BS）从位于每个覆盖区域内的移动站（MS）发送的信号的平均载波干扰比（C / I）值从RS或 MS在其相应的细胞; 根据C / I值将MS分为两组; 对于属于具有大于所分类组中的预设阈值Gamma的C / I值的组的MS执行满足来自相应RS的最小数据速率的资源分配; 通过对分类组中具有C / I值低于阈值的组的MS应用考虑了具有最高C / I值的两个RS的可选信号组合方案来执行资源分配; 并且以对应RS的MS中的具有高C / I值的MS的顺序分配每个单独RS的所有未分配子信道，直到每个RS不再有未分配的子信道。

44. 发明申请

US20080192702A1 METHOD AND APPARATUS FOR JOINT SCHEDULING TO INCREASE FREQUENCY EFFICIENCY AND FAIRNESS IN A DISTRIBUTED ANTENNA SYSTEM USING FREQUENCY REUSE AND COMMON POWER CONTROL 有权
标题翻译：用于使用频率重用和共同功率控制在分布式天线系统中提高频率效率和公平性的联机调度的方法和装置
公开(公告)号：US20080192702A1
公开(公告)日：2008-08-14
申请号：US11964973
申请日：2007-12-27
申请人： Ki-Uk Song , Seong-Taek Hwang , Won-Jin Sung , Jin-Woo Choe , Byoung-Seok Lee , Byung-Wook Jun
发明人： Ki-Uk Song , Seong-Taek Hwang , Won-Jin Sung , Jin-Woo Choe , Byoung-Seok Lee , Byung-Wook Jun
IPC分类号： H04Q7/00
CPC分类号： H04W72/1257 , H04W52/265 , H04W72/121 , H04W84/047
摘要： A joint scheduling apparatus and method for increasing frequency efficiency and fairness in a distributed antenna system using frequency reuse and common control power Packets are selected for transmission to be transmitted to MSs are selected, taking into account QoS in at least one of a BS and an RS and grouped into packet groups. The packets are selected from the packet groups, links corresponding to the packets are grouped into a link group, a joint power control is performed on the link group, link elimination and link addition are performed for the link group until optimal solutions are achieved for the links of the link group in the joint power control. Channels are allocated to the links when the optimal solutions are achieved for the links, and the status of a user queue of at least one of the BS and the RS is updated.
摘要翻译：选择用于使用频率复用和公共控制电力的分布式天线系统中的频率效率和公平性的联合调度装置和方法，以便选择用于发送到MS的传输，考虑到BS中的至少一个和 RS并分组成分组组。从分组组中选择分组，对应于分组的链路被分组成链路组，对链路组执行联合功率控制，链路消除和链路加入对链路组执行，直到达到最优解为止链路组在联合功率控制中的链路。当为链路实现最优解时，将信道分配给链路，并且更新BS和RS中的至少一个的用户队列的状态。

45. 发明申请

US20080145061A1 RADIO OVER FIBER LINK APPARATUS OF TIME DIVISION DUPLEX SCHEME 有权
标题翻译：无线电通过时分双工方案的光纤链路设备
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。

46. 发明申请

US20080117961A1 Method and apparatus of adaptively allocating transmission power for beamforming combined with orthogonal space-time block codes based on symbol error rate in distributed wireless communication system 有权
标题翻译：基于分布式无线通信系统中的符号错误率，自适应地分配波束成形的发射功率与正交空时块码组合的方法和装置
公开(公告)号：US20080117961A1
公开(公告)日：2008-05-22
申请号：US11974402
申请日：2007-10-12
申请人： Shuangfeng Han , Seong-Taek Hwang , Hoon Kim , Sang-Ho Kim , Jae-Hun Cho , Jae-Hoon Lee , Ki-Uk Song
发明人： Shuangfeng Han , Seong-Taek Hwang , Hoon Kim , Sang-Ho Kim , Jae-Hun Cho , Jae-Hoon Lee , Ki-Uk Song
IPC分类号： H04L27/00
CPC分类号： H04W52/42 , H04B7/043 , H04B7/0617 , H04B7/0691 , H04L1/0625 , H04L1/0668 , H04W52/04
摘要： Disclosed is an apparatus and method for adaptively allocating transmission power for beamforming combined with orthogonal space-time block codes (OSTBC) in a distributed wireless communication system, the apparatus comprising: a plurality of sub-arrays for beamforming, which are geographically distributed and each of which comprises a plurality of distributed antennas placed in random groups; and a central processing unit for identifying performances of subsets by applying a predetermined power allocation scheme according to subsets which can be obtained by combining the sub-arrays, by means of a Nakagami fading parameter and information about large-scale fading of each of the sub-arrays, fed back from a receiving party, for determining a subset having a best performance as an optimal subset according to the identified performances, and for performing power allocation based on the subset set as the optimal subset.
摘要翻译：公开了一种用于在分布式无线通信系统中自适应地分配与正交空时块码（OSTBC）组合的波束成形的发射功率的装置和方法，该装置包括：多个用于波束成形的子阵列，其在地理上分布并且每个其中包括放置在随机组中的多个分布式天线; 以及中央处理单元，用于通过应用根据可以通过组合子阵列获得的子集的预定功率分配方案，通过Nakagami衰落参数和关于每个子级的大规模衰落的信息来应用子集的性能 - 从接收方反馈的用于根据所识别的性能确定具有最佳性能的子集作为最佳子集的子阵列，以及用于基于所述子集作为所述最佳子集执行功率分配。

47. 发明授权

US07375700B2 Wideband monopole antenna 有权
标题翻译：宽带单极天线
公开(公告)号：US07375700B2
公开(公告)日：2008-05-20
申请号：US11230971
申请日：2005-09-20
申请人： Seong-Taek Hwang , Jae-Hoon Lee , Young-Sik Kim , Ji-Chai Jeong , Jung-Woo Baek , Young-Je Sung
发明人： Seong-Taek Hwang , Jae-Hoon Lee , Young-Sik Kim , Ji-Chai Jeong , Jung-Woo Baek , Young-Je Sung
IPC分类号： H01Q1/50 , H01Q1/24
CPC分类号： H01Q9/40 , H01Q5/50 , H01Q9/0485
摘要： A wideband monopole antenna assembly includes a substrate having an antenna connector, a wideband monopole antenna positioned on the substrate, and a feeder unit positioned on the rear surface of the substrate for supporting the antenna with a part thereof bent at a predetermined angle. The wideband monopole antenna has a feeder portion shorter than conventional antennas for compactness of the antenna.
摘要翻译：宽带单极天线组件包括具有天线连接器的基板，位于基板上的宽带单极天线，以及位于基板的后表面上的馈电单元，用于支撑天线，其一部分以预定角度弯曲。宽带单极天线具有比常规天线更短的馈电部分，用于天线的紧凑性。

48. 发明申请

US20080031198A1 Bridge-based radio access station backbone network and a method of treating signals thereof 失效
标题翻译：基于桥的无线接入站骨干网及其信号处理方法
公开(公告)号：US20080031198A1
公开(公告)日：2008-02-07
申请号：US11890174
申请日：2007-08-03
申请人： Seong-Taek Hwang , Jae-Hun Cho , Jong-Ho Yoon , Hoon Kim
发明人： Seong-Taek Hwang , Jae-Hun Cho , Jong-Ho Yoon , Hoon Kim
IPC分类号： H04Q7/00
CPC分类号： H04W36/02 , H04W36/12 , H04W36/18
摘要： A method of treating signals in a bridge-based radio access station backbone network including a plurality of base station bridges (BSBs), with each BSB having a 2-tiered switch connected with a plurality of radio access stations. A plurality of SCBs (Site Core Bridges), each of having a 2-tiered switch for constituting the core network, includes the steps of buffering by the SCB a predetermined number of previously-transmitted frames when operating as a crossover bridge, and causing the SCB to retransmit selected ones of the buffered previously-transmitted frames to a terminal in response to a handover completion signal.
摘要翻译：一种处理基于桥的无线电接入站骨干网络中的信号的方法，包括多个基站网桥（BSB），每个BSB具有与多个无线电接入站连接的2层交换机。多个具有用于构成核心网络的2层交换机的SCB（站点核心桥）包括以下步骤：当作为交叉桥工作时，由SCB缓冲预定数量的先前发送的帧， SCB响应于切换完成信号，将已缓存的先前发送的帧的选择的一个重传到终端。

49. 发明授权

US07295778B2 Wavelength division multiplexed passive optical network system 有权
标题翻译：波分复用无源光网络系统
公开(公告)号：US07295778B2
公开(公告)日：2007-11-13
申请号：US10713393
申请日：2003-11-14
申请人： Jea-Hyuck Lee , Seong-Taek Hwang , Yun-Je Oh , Dae-Kwang Jung
发明人： Jea-Hyuck Lee , Seong-Taek Hwang , Yun-Je Oh , Dae-Kwang Jung
IPC分类号： H04J14/00
CPC分类号： H04J14/0282 , H04B10/2503 , H04B10/40 , H04J14/02 , H04J14/0226 , H04J14/0246 , H04J14/025 , H04Q11/0067 , H04Q2011/0016
摘要： Disclosed is a wavelength division multiplexed passive optical network (WDM PON) system including a central office, a remote Node, and an optical fiber coupled between the central office and the remote node, wherein the central office includes an optical power splitter coupled to the optical fiber, wherein the optical power splitter (1) divides an upstream optical signal from the optical fiber into a plurality of upstream optical signals having substantially similar power and (2) outputs downstream optical signals to the optical fiber, and a plurality of optical transceiver modules to (1) receive the plurality of upstream optical signals, and (2) output the downstream optical signals to the optical power splitter, and wherein at least one of the optical transceiver modules having an optical transmitter including a semiconductor optical amplifier and a reflection-type optical fiber grating located at a predetermined distance from the semiconductor optical amplifier, the optical transmitter transmitting light of a pre-set wavelength resonating between the SOA and reflection-type optical fiber grating; and wherein at least one of the optical transceiver modules having an optical receiver having an optical fiber grating for transmitting light of a predetermined wavelength and an optical detector for detecting light passing through the optical fiber grating.
摘要翻译：公开了一种波分复用无源光网络（WDM PON）系统，包括中心局，远程节点和耦合在中心局与远程节点之间的光纤，其中中心局包括耦合到光学器件的光功率分配器光纤，其中所述光功率分配器（1）将来自所述光纤的上行光信号划分成具有基本相似功率的多个上游光信号，以及（2）向所述光纤输出下行光信号，以及多个光收发模块（1）接收多个上游光信号，以及（2）将下行光信号输出到光功率分配器，并且其中至少一个光收发模块具有光发射机，该光发射机包括半导体光放大器和反射 - 位于与半导体光放大器预定距离的光纤光栅，光发射传输在SOA和反射型光纤光栅之间谐振的预设波长的光; 并且其中所述光收发器模块中的至少一个具有光接收器，所述光接收器具有用于透射预定波长的光的光纤光栅和用于检测通过所述光纤光栅的光的光学检测器。

50. 发明申请

US20070258432A1 Single wavelength Bi-directional RoF link apparatus for signal transmission in TDD wireless system 有权
标题翻译：单波长双向RoF链路设备，用于TDD无线系统中的信号传输
公开(公告)号：US20070258432A1
公开(公告)日：2007-11-08
申请号：US11642260
申请日：2006-12-20
申请人： Jae-Hoon Lee , Byung-Jik Kim , Seong-Taek Hwang , Sang-Ho Kim
发明人： Jae-Hoon Lee , Byung-Jik Kim , Seong-Taek Hwang , Sang-Ho Kim
IPC分类号： H04B7/212
CPC分类号： H04B10/25758 , H04B7/2606
摘要： A single wavelength bi-directional RoF link apparatus for signal transmission in a TDD wireless system includes a main donor for receiving an RF signal of downstream data from an upper layer, electrooptic converting the received RF signal to an optical signal, and transmitting the converted optical signal via an optical fiber in response to a TDD switching signal received from the upper layer, or receiving an optical signal of upstream data via the optical fiber, opto-electric converting the received optical signal to an RF signal in response to the TDD switching signal received from the upper layer, and transmitting the converted optical signal to the main donor; and a remote for receiving the optical signal of the downstream data via the optical fiber from the main donor, opto-electric converting the received optical signal to an RF signal, and emitting the converted RF signal to a terminal via an antenna in response to a TDD switching signal generated by a switch timing signal generation circuit, or receiving an RF signal of upstream data from the terminal, electro-optic converting the received RF signal to an optical signal in response to the TDD switching signal generated by the switch timing signal generation circuit, and transmitting the converted optical signal to the main donor via the optical fiber.
摘要翻译：在TDD无线系统中用于信号传输的单波长双向RoF链路装置包括：主要供体，用于从上层接收下行数据的RF信号，将所接收的RF信号电光转换成光信号，并将转换后的光响应于从上层接收的TDD切换信号，或经由光纤接收上行数据的光信号，经由光纤发送信号，响应于TDD切换信号将接收到的光信号光电转换为RF信号从上层接收，并将转换的光信号发送到主供体; 以及遥控器，用于经由来自主施体的光纤接收下行数据的光信号，将所接收的光信号光电转换成RF信号，并响应于一个天线经由天线将转换的RF信号发射到终端 TDD切换信号，或者从终端接收上行数据的RF信号，根据切换定时信号生成产生的TDD切换信号将接收的RF信号电光转换为光信号并且经由光纤将转换后的光信号发送到主供体。

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