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1. 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。

2. 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。

3. 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。

4. 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。

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。

7. 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。

8. 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。

9. 发明授权

US08923243B2 Bridge-based cellular ethernet system and handover processing method therefor 有权
标题翻译：基于桥的蜂窝以太网系统及其切换处理方法
公开(公告)号：US08923243B2
公开(公告)日：2014-12-30
申请号：US11968682
申请日：2008-01-03
申请人： Jae-Hun Cho , Seong-Taek Hwang , Jong-Ho Yoon , Hoon Kim
发明人： Jae-Hun Cho , Seong-Taek Hwang , Jong-Ho Yoon , Hoon Kim
IPC分类号： G08C17/00 , H04L12/28 , H04W4/00 , H04W36/00 , H04J1/16 , G06F15/16 , H04W80/02 , H04W8/04
CPC分类号： H04W36/0011 , H04W8/04 , H04W8/087 , H04W80/02
摘要： A bridge-based cellular Ethernet system and a handover processing method therefore are provided. In the bridge-based cellular Ethernet system, an HLR manages configuration information about network entities, and a plurality of Base Station Bridges (BSBs) are connected to a plurality of Base Stations (BSs), each BSB including a layer 2 switch, and a plurality of SCBs connected to part of the BSBs under the SCBs. Each SCB includes a layer 2 switch forming a core network, and SCB monitors the signal power of a Mobile Node (MN) within its service area, determines whether the MN is to move to another site, selects a new SCB to which the MN is to move, sends necessary path information to associated SCBs and the HLR, for setting of the path information in the associated SCBs and the HLR, and commands a handover to the MN.
摘要翻译：因此，提供了一种基于桥的蜂窝以太网系统和切换处理方法。在基于桥的蜂窝以太网系统中，HLR管理有关网络实体的配置信息，并且多个基站桥（BSB）连接到多个基站（BS），每个BSB包括层2交换机和多个SCB连接到SCB下的部分BSB。每个SCB包括形成核心网的层2交换机，并且SCB监视其服务区域内的移动节点（MN）的信号功率，确定MN是否移动到另一站点，选择MN所在的新SCB 向相关联的SCB和HLR发送必要的路径信息，用于设置相关联的SCB和HLR中的路径信息，并且命令切换到MN。

10. 发明授权

US08149784B2 Bridge-based radio access station backbone network system and signal processing method therefor 有权
标题翻译：基于桥的无线接入站骨干网系统及其信号处理方法
公开(公告)号：US08149784B2
公开(公告)日：2012-04-03
申请号：US11880659
申请日：2007-07-24
申请人： Hoon Kim , Seong-Taek Hwang , Jong-Ho Yoon , Jae-Hun Cho
发明人： Hoon Kim , Seong-Taek Hwang , Jong-Ho Yoon , Jae-Hun Cho
IPC分类号： H04W4/00 , H04L12/28
CPC分类号： H04L29/12028 , H04L61/103 , H04W8/04 , H04W8/26 , H04W40/246 , H04W92/02
摘要： A bridge-based RAS backbone network system and a signal processing method therefor are provided. In the bridge-based RAS backbone network system, a plurality of BSBs with Layer 2 (L2) switches are connected to a plurality of RASs, and a plurality of SCBs with L2 switches are connected to part of the BSBs in a lower layer, forming a core network. An HLR manages configuration information of network entities by storing the IP addresses and MAC addresses of MNs within the network and the addresses of SCBs to which the MNs belong in a table. Each of the SCBs statically preserves the MAC address of an external default router, for relaying an egress frame, statically registers its individual MAC address in other SCBs in the core network beforehand, detects a destination MN through the HLR, and sends a frame to the SCB of the destination MN or the MAC address of the external default router.
摘要翻译：提供了一种基于桥梁的RAS骨干网系统及其信号处理方法。在基于桥的RAS骨干网系统中，具有层2（L2）交换机的多个BSB连接到多个RAS，并且具有L2交换机的多个SCB与下层的部分BSB连接，形成核心网络。 HLR通过存储网络中的MN的IP地址和MAC地址以及MN所属的SCB的地址来管理网络实体的配置信息。每个SCB静态地保留外部默认路由器的MAC地址，用于中继出站帧，预先在核心网中的其他SCB中静态注册其各自的MAC地址，通过HLR检测目的地MN，并将帧发送到目的MN的SCB或外部默认路由器的MAC地址。

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