会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 4. 发明授权
    • Apparatus and method for controlling layer 3 handover of mobile node
    • 用于控制移动节点的层3切换的装置和方法
    • US08184589B2
    • 2012-05-22
    • US11802909
    • 2007-05-25
    • Ki-Cheol LeeKee-Sung Nam
    • Ki-Cheol LeeKee-Sung Nam
    • H04W4/00
    • H04W36/0016H04W8/26H04W36/0055H04W40/36H04W48/08H04W48/16H04W64/00H04W80/04
    • A system and method for controlling layer 3 (L3) handover of a mobile node is disclosed. A mobile Internet protocol (MIP) network includes a plurality of mobile nodes, a plurality of users, a plurality of routers, and a handover control system. The plurality of routers periodically report state information of a plurality of base stations and the plurality of routers to a handover control system, which receives the state information to produce a handover topology map and maps a current location of the plurality of mobile nodes to the handover topology map to search for a plurality of target routers having a highest probability of handover. The handover control system transmits the state information of the searched target routers to the mobile nodes. Thus, the L3 handover time can be shortened to tens of ms or less, allowing for seamless real-time multimedia service even though a terminal moves.
    • 公开了一种用于控制移动节点的层3(L3)切换的系统和方法。 移动互联网协议(MIP)网络包括多个移动节点,多个用户,多个路由器和切换控制系统。 多个路由器周期性地将多个基站和多个路由器的状态信息报告给切换控制系统,该切换控制系统接收状态信息以产生切换拓扑图,并将多个移动节点的当前位置映射到切换 拓扑图以搜索具有最高切换概率的多个目标路由器。 切换控制系统将搜索到的目标路由器的状态信息发送到移动节点。 因此,L3切换时间可以缩短到几十ms或更少,即使终端移动也允许无缝实时多媒体服务。
    • 5. 发明申请
    • Handover control method and apparatus for efficiently buffering packets in wimax network
    • 用于在wimax网络中高效缓存数据包的切换控制方法和装置
    • US20080192700A1
    • 2008-08-14
    • US12068740
    • 2008-02-11
    • Ki-Cheol LeeKee-Sung Nam
    • Ki-Cheol LeeKee-Sung Nam
    • H04Q7/00
    • H04W36/02
    • A handover control method and apparatus are provided to efficiently buffer packets in a Mobile Worldwide Interoperability for Microwave Access (WIMAX) network. A serving radio access station (S-RAS) and an access control router (ACR) divide and buffer packets to be sent to a mobile station before and after a predetermined message exchange process. The Access control router (ACR) sequentially tunnels a packet buffered in the serving radio access station (S-RAS) and a packet buffered in the Access control router (ACR) into a target radio access station (T-RAS) when a handover for the mobile station is completed. Since an unnecessary buffering operation is not performed in the Access control router (ACR) and the radio access station (RAS), a resource waste may be avoided.
    • 提供了一种切换控制方法和装置,以有效地缓冲移动全球微波接入互操作性(WIMAX)网络中的分组。 服务无线电接入站(S-RAS)和接入控制路由器(ACR)在预定消息交换过程之前和之后划分和缓冲分组以发送到移动台。 访问控制路由器(ACR)在服务无线电接入站(S-RAS)中缓冲的分组以及缓冲在接入控制路由器(ACR)中的分组顺序地将目的无线接入站(T-RAS) 移动台完成。 由于在接入控制路由器(ACR)和无线接入站(RAS)中不执行不必要的缓冲操作,所以可以避免资源浪费。
    • 8. 发明授权
    • Ethernet passive optical network for integrating broadcast and communication based on time division multiplexing scheme
    • 以太网无源光网络,用于基于时分复用方案整合广播和通信
    • US07382982B2
    • 2008-06-03
    • US10811600
    • 2004-03-29
    • Ki-Cheol LeeYun-Je OhKee-Sung NamTae-Sung Park
    • Ki-Cheol LeeYun-Je OhKee-Sung NamTae-Sung Park
    • H04J14/08
    • H04J14/0226H04J14/0232H04J14/0247H04J14/0252H04J14/0282H04Q11/0066H04Q11/0067H04Q11/0071
    • An Ethernet-PON integrates broadcast/communication through time division multiplexing, which provides users with high-speed, high-volume communication data and high-quality, real-time digital broadcast/image data. An OLT performs a switching operation on a plurality of digital broadcast/image data received from an external broadcaster according to respective broadcast/image selection information from users, time-division-multiplexes the data into a broadcast/image signal, multiplexes the signal and communication data from an IP network into a frame, and electro-optically converts the frame and transmits to the frame to ONTs through an optical splitter. Each ONT receives and photoelectrically converts the signal from the OLT, and performs frame & time-slot demultiplexing to output the entire received communication signals and broadcast/image information contained in a time-slot assigned to the ONT to a corresponding user. The ONT receives a communication signal and broadcast/image selection information from the user, and outputs them to the OLT through the splitter.
    • 以太网PON通过时分复用整合广播/通信,为用户提供高速,高容量的通信数据和高质量的实时数字广播/图像数据。 OLT根据来自用户的各广播/图像选择信息对从外部广播者接收的多个数字广播/图像数据进行切换操作,将数据时分复用为广播/图像信号,复用信号和通信 从IP网络到帧的数据,并且电光转换帧并通过分光器向帧发送到ONT。 每个ONT接收和光电转换来自OLT的信号,并执行帧和时隙解复用以将包含在分配给ONT的时隙中的整个接收的通信信号和广播/图像信息输出给对应的用户。 ONT从用户接收通信信号和广播/图像选择信息,并通过分路器将其输出到OLT。