专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20080056167A1 RADIO OVER FIBER SYSTEM AND METHOD FOR CONTROLLING TRANSMISSION TIME 审中-公开
标题翻译：无线电光纤系统和控制传输时间的方法
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。

2. 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。

3. 发明申请

US20070147835A1 Device and method for controlling optical transmitters in WDM-PON system 审中-公开
标题翻译：在WDM-PON系统中控制光发射机的装置和方法
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。

4. 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。

5. 发明申请

US20080037567A1 Method and apparatus for guaranteeing quality of service in a residential ethernet system 失效
标题翻译：保证住宅以太网系统的服务质量的方法和装置
公开(公告)号：US20080037567A1
公开(公告)日：2008-02-14
申请号：US11891122
申请日：2007-08-09
申请人： Jae-Hun Cho , Seong-Taek Hwang , Hoon Kim , Yun-Je Oh
发明人： Jae-Hun Cho , Seong-Taek Hwang , Hoon Kim , Yun-Je Oh
IPC分类号： H04L12/28
CPC分类号： H04L12/4625 , H04L47/10 , H04L47/13 , H04L47/2408 , H04L47/2441 , H04L47/28 , H04L47/31 , H04L47/50 , H04L47/562
摘要： A method and apparatus for ensuring QoS in a synchronous Ethernet bridge are disclosed, in which a classifier classifies an ingress packet according to a PHB mapped to a DSCP value of the packet and provides the classified packet to one of a predetermined synchronous packet queue and a predetermined asynchronous packet queue, a buffer queue with a plurality of queues mapped to priority levels buffers the classified packet, a marker marks the buffered packet as a synchronous packet or, if the buffered packet is an asynchronous packet, marks the packet in a predetermined format corresponding to a priority level of the packet, and a synchronous Ethernet scheduler schedules the marked packet.
摘要翻译：公开了一种用于确保同步以太网中的QoS的方法和装置，其中分类器根据映射到分组的DSCP值的PHB对入口分组进行分类，并将分类分组提供给预定的同步分组队列和预定的异步分组队列，具有映射到优先级的多个队列的缓冲器队列缓冲分类分组，标记将缓冲分组标记为同步分组，或者如果缓冲分组是异步分组，则以预定格式标记分组对应于分组的优先级，并且同步以太网调度器调度所标记的分组。

6. 发明授权

US07715418B2 Method and apparatus for guaranteeing quality of service in a residential ethernet system 失效
标题翻译：保证住宅以太网系统的服务质量的方法和装置
公开(公告)号：US07715418B2
公开(公告)日：2010-05-11
申请号：US11891122
申请日：2007-08-09
申请人： Jae-Hun Cho , Seong-Taek Hwang , Hoon Kim , Yun-Je Oh
发明人： Jae-Hun Cho , Seong-Taek Hwang , Hoon Kim , Yun-Je Oh
IPC分类号： H04L12/56
CPC分类号： H04L12/4625 , H04L47/10 , H04L47/13 , H04L47/2408 , H04L47/2441 , H04L47/28 , H04L47/31 , H04L47/50 , H04L47/562
摘要： A method and apparatus for ensuring QoS in a synchronous Ethernet bridge are disclosed, in which a classifier classifies an ingress packet according to a PHB mapped to a DSCP value of the packet and provides the classified packet to one of a predetermined synchronous packet queue and a predetermined asynchronous packet queue, a buffer queue with a plurality of queues mapped to priority levels buffers the classified packet, a marker marks the buffered packet as a synchronous packet or, if the buffered packet is an asynchronous packet, marks the packet in a predetermined format corresponding to a priority level of the packet, and a synchronous Ethernet scheduler schedules the marked packet.
摘要翻译：公开了一种用于确保同步以太网中的QoS的方法和装置，其中分类器根据映射到分组的DSCP值的PHB对入口分组进行分类，并将分类分组提供给预定的同步分组队列和预定的异步分组队列，具有映射到优先级的多个队列的缓冲器队列缓冲分类分组，标记将缓冲分组标记为同步分组，或者如果缓冲分组是异步分组，则以预定格式标记分组对应于分组的优先级，并且同步以太网调度器调度所标记的分组。

7. 发明授权

US08116405B2 Method and apparatus for time synchronization using GPS information in communication system 有权
标题翻译：在通信系统中使用GPS信息进行时间同步的方法和装置
公开(公告)号：US08116405B2
公开(公告)日：2012-02-14
申请号：US12104662
申请日：2008-04-17
申请人： Jae-Hun Cho , Byung-Duck Cho , Yun-Je Oh , Seong-Taek Hwang
发明人： Jae-Hun Cho , Byung-Duck Cho , Yun-Je Oh , Seong-Taek Hwang
IPC分类号： H03K9/00 , H04L27/00
CPC分类号： H04J3/0697 , G04R20/06 , H04J3/0644 , H04J3/0664 , H04J3/0667
摘要： A method and apparatus for time synchronization (TS) method using GPS information in a communication system synchronizing the time of slave nodes, which do not have a GPS receiver, by using GPS information of a node having a GPS receiver. The method includes the steps of extracting 1PPS, TOD, 1PPS_en, and clocks using GPS signals by a grand master node having a GPS receiver, stabilizing the signals, generating a sync message for TS, and transmitting the sync message to a slave node; receiving the sync message by the slave node and conducting a TS operation using OFCC synchronization technology extracting 1PPS, TOD, and 1PPS_en signals using the modified TOD information by the block and delivering to a stabilization block of the slave node for stabilization; and redelivering to the TS block to update TOD information and generate a sync message for TS of a second slave node.
摘要翻译：通过使用具有GPS接收机的节点的GPS信息，在通信系统中使用GPS信息来同步没有GPS接收机的从节点的时间的时间同步（TS）方法和方法。该方法包括以下步骤：通过具有GPS接收机的大主节点提取1PPS，TOD，1PPS_en和使用GPS信号的时钟，稳定信号，产生用于TS的同步消息，并将同步消息发送到从节点; 由所述从节点接收同步消息，并且使用OFCC同步技术进行TS操作，所述同步技术使用所述块的修改的TOD信息提取1PPS，TOD和1PPS_en信号，并将其传送到所述从节点的稳定块以进行稳定; 并且重新发送到TS块以更新TOD信息并且生成用于第二从节点的TS的同步消息。

8. 发明申请

US20090168808A1 APPARATUS AND METHOD FOR PERFORMING TIME SYNCHRONIZATION USING GPS INFORMATION IN COMMUNICATION SYSTEM 有权
标题翻译：在通信系统中使用GPS信息执行时间同步的装置和方法
公开(公告)号：US20090168808A1
公开(公告)日：2009-07-02
申请号：US12062557
申请日：2008-04-04
申请人： Jae-Hun CHO , Seong-Taek Hwang , Byung-Duck Cho , Yun-Je Oh
发明人： Jae-Hun CHO , Seong-Taek Hwang , Byung-Duck Cho , Yun-Je Oh
IPC分类号： H04J3/06 , H04B7/185
CPC分类号： G04G7/00 , H04J3/0644 , H04J3/0664 , H04J3/0667 , H04J3/0697
摘要： Disclosed is an apparatus and a method for performing time synchronization by using Global Positioning System (GPS) information in a communication system. The apparatus comprises a grand-master node having a GPS receiver, for generating a synchronizing message required to synchronize time on slave nodes by using Time Of Day (TOD) information received from the GPS receiver and at least one slave node for receiving the synchronizing message required to synchronize time from the grand-master node or from another slave node, for carrying out time synchronization operation by using an Offset and Frequency Compensation Clock (OFCC) synchronization process supporting time offset and frequency separation compensation, and for generating a synchronizing message required to synchronize time on other slave nodes.
摘要翻译：公开了一种通过在通信系统中使用全球定位系统（GPS）信息来执行时间同步的装置和方法。该装置包括具有GPS接收机的盛大主节点，用于通过使用从GPS接收机接收的时间（TOD）信息和至少一个从节点接收同步消息来产生用于同步从节点上的时间所需的同步消息需要同步来自大主节点或另一个从节点的时间，以便通过使用支持时间偏移和频率分离补偿的偏移和频率补偿时钟（OFCC）同步过程来执行时间同步操作，并用于生成所需的同步消息以在其他从节点上同步时间。

9. 发明申请

US20080002625A1 Bridged portable internet system and method for processing signal thereof 审中-公开
标题翻译：桥接便携式互联网系统及其信号处理方法
公开(公告)号：US20080002625A1
公开(公告)日：2008-01-03
申请号：US11644575
申请日：2006-12-22
申请人： Jae-Hun Cho , Seong-Taek Hwang , Jong-Ho Yoon , Yun-Je Oh , Hoon Kim , Han-Kyun Jung
发明人： Jae-Hun Cho , Seong-Taek Hwang , Jong-Ho Yoon , Yun-Je Oh , Hoon Kim , Han-Kyun Jung
IPC分类号： H04Q7/00
CPC分类号： H04W8/26 , H04W4/00 , H04W8/005 , H04W40/246 , H04W40/36 , H04W80/04 , H04W88/08
摘要： Disclosed is a bridged portable internet system, which includes: a plurality of edge bridges entirely connected as a mesh structure to form a core network, and configured as a layer 2 switch; a plurality of Radio Access Stations (RASs) connected to one of the plurality of edge bridges to provide portable internet services to Mobile Nodes (MNs) within the range of services; and a Neighbor Discovery Server (NDS) for supporting neighbor discovery of components in the network and storing and managing configuration information of the components, wherein each of the plurality of edge bridges maintains an optimal path through a predetermined routing protocol, identifies the destination of a Media Access Control (MAC) frame transmitted by an MN connected to an edge bridge itself through a corresponding RAS by referring to the configuration information from the NDS so as to transmit a corresponding MAC frame to the MAC address of an edge bridge to which a corresponding CN is connected by performing MAC in MAC encapsulation if receiving a MAC in MAC encapsulated frame with its own MAC address as a destination, and performs MAC in MAC encapsulation with the frame to delete an outer MAC address and to transmit an original MAC frame to a corresponding MN.
摘要翻译：公开了一种桥接便携式互联网系统，其包括：多个边缘网桥，其完全连接为网状结构以形成核心网络，并且被配置为层2交换机; 连接到所述多个边缘网桥之一的多个无线电接入站（RAS），以向所述服务范围内的移动节点（MN）提供便携式因特网服务; 和邻居发现服务器（NDS），用于支持网络中组件的邻居发现，并存储和管理组件的配置信息，其中多个边缘网桥中的每一个维护通过预定路由协议的最佳路径，识别一个通过参考来自NDS的配置信息，通过相应的RAS连接到边缘网桥本身的MN发送的媒体访问控制（MAC）帧，以便将相应的MAC帧发送到对应的边缘网桥的MAC地址，如果以MAC自身的MAC地址为目的地的MAC封装帧中接收到MAC，则MAC通过MAC封装进行MAC连接，并且利用该MAC进行MAC封装，以删除外部MAC地址并将原始MAC帧发送到相应的MN。

10. 发明授权

US07876790B2 Apparatus and method for performing time synchronization using GPS information in communication system 有权
标题翻译：在通信系统中使用GPS信息进行时间同步的装置和方法
公开(公告)号：US07876790B2
公开(公告)日：2011-01-25
申请号：US12062557
申请日：2008-04-04
申请人： Jae-Hun Cho , Seong-Taek Hwang , Byung-Duck Cho , Yun-Je Oh
发明人： Jae-Hun Cho , Seong-Taek Hwang , Byung-Duck Cho , Yun-Je Oh
IPC分类号： H04J3/06
CPC分类号： G04G7/00 , H04J3/0644 , H04J3/0664 , H04J3/0667 , H04J3/0697
摘要： Disclosed is an apparatus and a method for performing time synchronization by using Global Positioning System (GPS) information in a communication system. The apparatus comprises a grand-master node having a GPS receiver, for generating a synchronizing message required to synchronize time on slave nodes by using Time Of Day (TOD) information received from the GPS receiver and at least one slave node for receiving the synchronizing message required to synchronize time from the grand-master node or from another slave node, for carrying out time synchronization operation by using an Offset and Frequency Compensation Clock (OFCC) synchronization process supporting time offset and frequency separation compensation, and for generating a synchronizing message required to synchronize time on other slave nodes.
摘要翻译：公开了一种通过在通信系统中使用全球定位系统（GPS）信息来执行时间同步的装置和方法。该装置包括具有GPS接收机的盛大主节点，用于通过使用从GPS接收机接收的时间（TOD）信息和至少一个从节点接收同步消息来产生用于同步从节点上的时间所需的同步消息需要同步来自大主节点或另一个从节点的时间，以便通过使用支持时间偏移和频率分离补偿的偏移和频率补偿时钟（OFCC）同步过程进行时间同步操作，并用于生成所需的同步消息以在其他从节点上同步时间。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式