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    • 1. 发明公开
    • 와이맥스 네트워크에서의 효율적인 버퍼링을 위한 핸드오버제어 방법 및 그 제어 장치
    • 控制WIMAX网络中有效的分组缓冲的控制手段及其方法
    • KR1020080075310A
    • 2008-08-18
    • KR1020070014296
    • 2007-02-12
    • 삼성전자주식회사
    • 이기철남기성
    • H04L12/46H04L12/54H04L12/56
    • H04W36/02
    • A handover control method for efficient buffering in a WiMAX network and an apparatus for the same are provided to prevent a waste of resources without unnecessary buffering by making a serving RAS(Radio Access Station) buffer packets to be delivered to an MS(Mobile Station) until a path is established between an ACR(Access Control Router) and a target RAS after handover is started and making the ACR buffer packets until the handover is completed after the path is established. An MS, which prepares for handover, sends a MOB-MSHO-REQUEST message to a serving RAS(S301). The serving RAS transmits an HO-Request message to an ACR, and the ACR relays the HO-Request message to a plurality of target RASs(S302). Each target RAS judges whether it can accomodate the MS, and transmits an HO-response message to the ACR. The ACR relays the HO-response messages to the serving RAS(S303). The serving RAS transmits a MOB-BSHO-RSP message to the MS(S304). In response to the HO-response messages, the serving RAS transmits an HO-ACK message to the ACR(S305). The HO-ACK message is delivered to each target RAS through the ACR(S306). After transmitting the HO-ACK message, the serving RAS starts buffering packets to be transmitted to the MS(S307). The MS determines a target RAS for handover, transmits a MOB-HO-IND message to the serving RAS, and opens a handover procedure(S308). The serving RAS transmits an HO-confirm message to the ACR(S309).
    • 提供了一种用于WiMAX网络中的高效缓存的切换控制方法及其装置,用于通过使服务RAS(无线电接入站)缓冲包传送到MS(移动台)来防止浪费资源而不需要不必要的缓冲, 直到在切换开始之后在ACR(接入控制路由器)和目标RAS之间建立路径,并且在建立路径之后使ACR缓冲器分组直到切换完成。 准备切换的MS向服务RAS发送MOB-MSHO请求消息(S301)。 服务RAS向ACR发送HO请求消息,并且ACR将HO请求消息中继到多个目标RAS(S302)。 每个目标RAS判断是否可以容纳MS,并向ACR发送HO响应消息。 ACR将HO响应消息中继到服务RAS(S303)。 服务RAS向MS发送MOB-BSHO-RSP消息(S304)。 响应于HO响应消息,服务RAS向ACR发送HO-ACK消息(S305)。 通过ACR将HO-ACK消息传送到每个目标RAS(S306)。 在发送HO-ACK消息之后,服务RAS开始缓冲要发送到MS的分组(S307)。 MS确定用于切换的目标RAS,向服务RAS发送MOB-HO-IND消息,并且打开切换过程(S308)。 服务RAS向ACR发送HO确认消息(S309)。
    • 2. 发明公开
    • 비손실 모바일 IP 패킷 전달 방법 및 그 시스템
    • 无线移动IP分组传送方法及其系统
    • KR1020080075306A
    • 2008-08-18
    • KR1020070014289
    • 2007-02-12
    • 삼성전자주식회사
    • 정한유남기성
    • H04L12/54H04L12/66H04L12/46
    • H04W36/02
    • A lossless mobile IP packet delivery method and a system thereof are provided to deliver IP packets to an MS(Mobile Station) without any loss by delivering IP packets, stored in the buffer of an old ACR(Access Control Router) and the buffer of an old RAS(Radio Access Station), to a new RAS through the creation of a tunnel in case that the MS performs handover to the new RAS. An MS starts a handover procedure in the case of moving from an old RAS belonging to an old ACR to a new RAS belonging to a new ACR(S601). If a signal sent from the old RAS is below a specific threshold, the MS transmits a MOV_HO-IND message to the old RAS(S602). At this moment, the MS disconnects the association with the old RAS and the old ACR(S603). The old RAS stores IP packets, not delivered to the MS, in its own buffer manager the moment the MOV_HO-IND message is received(S604). Also the old ACR stores packets, which will be delivered to the MS from a CN(Correspondent Node), in its buffer manager(S605). The MS transmits an RNG-REQ message to the new RAS and establishes a new connection(S606). The old RAS and the new RAS carry out a link layer handover procedure in accordance with IEEE 802.16e and WiMAX NWG Stage documents(S607). The MS acquires a CoA(Care of Address) through an agent searching procedure defined in mobile IP protocol(S608). The old RAS creates a tunnel with the new RAS while executing the link layer handover procedure, and transmits the stored IP packets to the new RAS through the tunnel if the agent searching procedure is completed(S609).
    • 提供了一种无损移动IP分组传送方法及其系统,用于通过传送存储在旧ACR(接入控制路由器)的缓冲器中的IP分组而将任何丢失的IP分组传送到MS(移动台) 旧RAS(无线电接入站))通过创建隧道到新的RAS,以便MS执行到新的RAS的切换。 在从属于旧ACR的旧RAS移动到属于新ACR的新RAS的情况下,MS开始切换过程(S601)。 如果从旧RAS发送的信号低于特定阈值,则MS向旧RAS发送MOV_HO-IND消息(S602)。 此时,MS断开与旧RAS和旧ACR的关联(S603)。 在接收到MOV_HO-IND消息的时刻,旧RAS存储在其自身的缓冲管理器中未传送到MS的IP数据包(S604)。 而旧的ACR也存储在缓冲区管理器(S605)中从CN(通讯节点)传送到MS的数据包。 MS向新的RAS发送RNG-REQ消息并建立新的连接(S606)。 旧RAS和新RAS根据IEEE 802.16e和WiMAX NWG Stage文档(S607)进行链路层切换过程。 MS通过移动IP协议(S608)中定义的代理搜索过程获取CoA(转交地址)。 旧RAS在执行链路层切换过程时创建与新RAS的隧道,并且如果代理搜索过程完成,则通过隧道将所存储的IP分组发送到新的RAS(S609)。
    • 3. 发明授权
    • 복합 네트워크 관리 시스템 및 그 방법
    • 복합네트워크관리시스템및그방법
    • KR100738553B1
    • 2007-07-11
    • KR1020060005564
    • 2006-01-18
    • 삼성전자주식회사
    • 이기철남기성
    • H04L12/66H04L12/24H04L12/46H04L12/28
    • A complex network management system and method are provided to guarantee a high-quality and large-capacity service for users and also guarantee seamless QoS(Quality of Service) even in communication between heterogeneous networks. A TRM(Topology/Resource Management Module)(32) collects resource information of a complex network and manages it. A PRD(Policy Rule Decision Module)(31) determines a limit network resource for authenticating a call transmitted to an access network or a metro network and a policy related to the limit network resource. A CAM(Connection Admission Control Module)(34) compares the network resource information and the limit network resource, and determines whether to permit a request for authentication of a call transmitted to the complex network.
    • 提供一种复杂的网络管理系统和方法,以保证为用户提供高质量和大容量的服务,并且即使在异构网络之间的通信中也保证无缝的QoS(服务质量)。 TRM(拓扑/资源管理模块)(32)收集复杂网络的资源信息并对其进行管理。 PRD(策略规则决定模块)(31)确定用于认证向接入网络或城域网络传送的呼叫的限制网络资源以及与限制网络资源相关的策略。 CAM(连接许可控制模块)(34)比较网络资源信息和限制网络资源,并且确定是否允许发送到复杂网络的呼叫的认证请求。
    • 4. 发明授权
    • 광대역 무선통신 시스템에서 핸드오버 타겟 기지국 선택방법 및 장치
    • 宽带无线通信系统中选择切换目标基站的装置和方法
    • KR101450179B1
    • 2014-10-14
    • KR1020080016671
    • 2008-02-25
    • 삼성전자주식회사
    • 이철웅남기성
    • H04B7/26
    • 본 발명은 광대역 무선통신 시스템에서 단말의 핸드오버 타겟 기지국을 선택하는 방법 및 장치에 관한 것으로서, 상기 단말의 서빙 기지국이 접속 서비스 네트워크 게이트웨이(ASN-GW)를 통해 복수의 인접 기지국들로부터 역량(capability) 정보를 수신하는 과정과, 상기 서빙 기지국이 상기 복수의 인접 기지국들의 역량 정보를 비교하여 하나의 인접 기지국을 단말의 핸드오버 타겟 기지국으로 선택하는 과정과, 상기 복수의 인접 기지국들 중 상기 선택된 하나의 인접 기지국에 대한 정보만을 상기 단말로 전송하는 과정을 포함하여, 상기 서빙 기지국이 단말의 핸드오버 타겟 기지국을 직접 선택하여 선택된 타겟 기지국의 정보만을 단말로 전송함으로써, 핸드오버 지연시간을 감소시킬 수 있으며 이로 인해 사용자에게 끊김 없는 서비스를 제공할 수 있는 효과가 있다.
      핸드오버, 타겟 기지국 선택, SLP(Service Level Prediction), HPO(HO Process Optimization)
    • 6. 发明公开
    • 광 네트워크 유닛에서의 광 출력 제어장치 및 그 방법
    • 控制光网络光传输的装置和方法
    • KR1020080086247A
    • 2008-09-25
    • KR1020070028211
    • 2007-03-22
    • 삼성전자주식회사주식회사 케이티
    • 손성일김선기남기성문강영박태성민병두
    • H04B10/079H04B10/03H04B10/50H04B10/25
    • An apparatus and a method for controlling an optical output in an ONU(Optical Network Unit) are provided to operate an overall PON(Passive Optical Network) system stably by preventing an influence of malfunction of a laser diode on other normally operating ONUs. An optical transmission module(310) transmits an optical signal including data inserted into an allocated time slot to an OLT(Optical Line Termination)(100). An optical output control module(330) detects the transmitted optical signal. If the optical signal is detected for longer than a pre-set time, the optical output control module controls to prevent the optical signal transmitted to the OLT. An optical detecting unit(332) detects the optical signal transmitted from the optical transmission module to the OLT. If the detect time of the optical signal in the optical detecting unit is longer than the pre-set time, a controller(334) determines that the optical transmission module malfunctions and prevent an optical output of the optical transmission module.
    • 提供了一种用于控制ONU(光网络单元)中的光输出的装置和方法,用于通过防止激光二极管对其他正常操作的ONU的故障的影响来稳定地操作整个PON(被动光网络)系统。 光传输模块(310)将包括插入到分配的时隙中的数据的光信号发送到OLT(光线路终端)(100)。 光输出控制模块(330)检测所发送的光信号。 如果检测到光信号长于预设时间,则光输出控制模块控制以防止发送到OLT的光信号。 光检测单元(332)检测从光传输模块向OLT发送的光信号。 如果光检测单元中的光信号的检测时间长于预设时间,则控制器(334)确定光传输模块发生故障并防止光传输模块的光输出。
    • 7. 发明授权
    • 멀티캐스팅 제어 시스템 및 그 방법
    • 멀티캐스팅제어시스템및그방법
    • KR100694227B1
    • 2007-03-14
    • KR1020050130953
    • 2005-12-27
    • 삼성전자주식회사
    • 이기철남기성
    • H04L12/18H04L12/927
    • An MSQC(Multicasting Service QoS(Quality of Service) Controller) and a method thereof are provided to search phase and resource states of a network, and to determine whether to offer a new multicasting service according to the searched network resource states, thereby providing a high-quality multimedia service based on multicasting to a user. At least one of receiving terminals(51,52,53) is supplied with a multicasting service. At least one of routers(41,42,43,44,45) relays multicasting service packets transmitted to the receiving terminals(51,52,53) from a multicasting source(30). An MSQC(20) perceives surplus network resources by collecting network resource states of the routers(41,42,43,44,45), and determines whether multicasting packets are received to the routers(41,42,43,44,45) from a new multicasting source or whether multicasting packets are transmitted to a new receiving terminal from the routers(41,42,43,44,45).
    • MSQC(Multicast Service QoS(服务质量)控制器)及其方法被提供用于搜索网络的相位和资源状态,并且根据搜索到的网络资源状态来确定是否提供新的多播服务,由此提供 基于多播给用户的高质量多媒体服务。 接收终端(51,52,53)中的至少一个被提供多播服务。 至少一个路由器(41,42,43,44,45)中继从多播源(30)发送到接收终端(51,52,53)的多播业务分组。 MSQC(20)通过收集路由器(41,42,43,44,45)的网络资源状态来感知剩余网络资源,并确定是否向路由器(41,42,43,44,45)接收到多播分组, 从新的多播源或者多播分组是否从路由器(41,42,43,44,45)被发送到新的接收终端。
    • 10. 发明公开
    • 광대역 무선통신 시스템에서 핸드오버 타겟 기지국 선택방법 및 장치
    • 宽带无线通信系统中选择切换目标基站的装置和方法
    • KR1020090091421A
    • 2009-08-28
    • KR1020080016671
    • 2008-02-25
    • 삼성전자주식회사
    • 이철웅남기성
    • H04B7/26
    • H04W36/08H04B7/2606H04W36/24H04W88/16
    • An apparatus and a method for selecting a handover target base station in a broadband wireless communication system are provided to compare SLP(Service Level Prediction) information with HPO(Handover Process Optimization) information to select a target base station. A transceiver(201) receives capability information from adjacent base stations through an ASN-GW(Access Service Network-GateWay). A handover management unit(205) compares SLP information with HPO information of the adjacent base stations. The handover management unit determines each priority of the handover management unit. The handover management unit selects one adjacent base station having highest priority as a handover target base station of a terminal. The handover management unit processes a function of transmitting only information about the selected adjacent base station to the terminal.
    • 提供了一种用于在宽带无线通信系统中选择切换目的地基站的装置和方法,以将SLP(服务水平预测)信息与HPO(切换过程优化)信息进行比较,以选择目标基站。 收发器(201)通过ASN-GW(接入服务网络 - 网关)从相邻基站接收能力信息。 切换管理单元(205)将SLP信息与相邻基站的HPO信息进行比较。 切换管理单元确定切换管理单元的每个优先级。 切换管理单元选择具有最高优先级的一个相邻基站作为终端的切换目标基站。 切换管理单元处理仅向终端发送关于所选择的相邻基站的信息的功能。