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    • 24. 发明申请
    • Fast handover method for IPv6 over 802.16 network
    • IPv6 over 802.16网络的快速切换方法
    • US20070008930A1
    • 2007-01-11
    • US11480508
    • 2006-07-05
    • Hee-Jin JangYoun-Hee HanMi-Sun Do
    • Hee-Jin JangYoun-Hee HanMi-Sun Do
    • H04Q7/00
    • H04W36/0011H04W80/04
    • A handover method of a mobile station (MS) in a mobile communication system having MSs and radio access stations (RASs), each of which includes an IEEE 802.16 standard-based medium access control (MAC) layer and an Internet protocol version 6 (IPv6)-based IP layer. The handover method includes the step of gathering IP network information of a neighbor RAS through a message exchange with a previous RAS. A target RAS for handover based on the gathered IP network information of the neighbor RAS is determined, after the target RAS is determined, the previous RAS tunnels data for targeting the MS to the target RAS, Then the tunneled data are received from the target RAS.
    • 具有MS和无线电接入站(RAS)的移动通信系统中的移动台(MS)的切换方法,每个移动台包括基于IEEE 802.16标准的媒体接入控制(MAC)层和因特网协议版本6(IPv6 )的IP层。 切换方法包括通过与先前RAS的消息交换来收集邻居RAS的IP网络信息的步骤。 在确定了目标RAS之后,确定用于将目标MS定位到目标RAS的先前的RAS隧道数据,从目标RAS接收到隧道数据,从而确定基于相邻RAS的收集的IP网络信息的用于切换的目标RAS 。
    • 25. 发明申请
    • Method for determining a time for performing a vertical hand-off among IP-based heterogeneous wireless access networks
    • 用于确定在基于IP的异构无线接入网络中执行垂直切换的时间的方法
    • US20060148479A1
    • 2006-07-06
    • US11327017
    • 2006-01-06
    • Chi-Hyun ParkMi-Sun Do
    • Chi-Hyun ParkMi-Sun Do
    • H04Q7/20
    • H04W36/04H04W36/0011H04W36/026H04W80/00H04W80/04H04W84/045H04W88/06
    • A method for determining an execution time of a VHO between base stations having different wireless interfaces in handoff among IP-based wireless access networks. The method includes: computing an execution time period of the VHO using identification information of the base stations, types of handoff protocols, a method for transferring data among the base stations, and transmission/reception mode information of an MT; computing first RSS information using the computed time period, the first RSS information representing an RSS threshold value of a home base station based on which the handoff must be performed before a link from the MT to the home base station is down; and determining the execution time of the handoff, including an initialization process for determining to perform the handoff using the first RSS information and RSS information values of the base stations.
    • 一种用于在基于IP的无线接入网络中的切换中确定具有不同无线接口的基站之间的VHO的执行时间的方法。 该方法包括:使用基站的识别信息,切换协议的种类,基站之间传送数据的方法以及MT的发送/接收模式信息来计算VHO的执行时间段; 使用所计算的时间周期来计算第一RSS信息,所述第一RSS信息表示家庭基站的RSS阈值,基于该阈值,在从MT到家庭基站的链路关闭之前必须执行切换; 以及确定所述切换的执行时间,包括使用所述基站的所述第一RSS信息和所述RSS信息值来确定执行所述切换的初始化处理。
    • 26. 发明申请
    • Symbol synchronization method for OFDM-based wireless communication system
    • 基于OFDM的无线通信系统的符号同步方法
    • US20060002367A1
    • 2006-01-05
    • US11173626
    • 2005-07-01
    • Sang-Hoon LeeMi-Sun DoSung-Hyun ChoYung-Soo Kim
    • Sang-Hoon LeeMi-Sun DoSung-Hyun ChoYung-Soo Kim
    • H04L12/28
    • H04L27/2602
    • Disclosed is a symbol synchronization method in an OFDM-based communication system which includes multiple access nodes supporting wireless connection of terminals, supports multi-connection of each terminal for the access nodes and performs synchronization by means of a cyclic prefix. The symbol synchronization method includes monitoring connection of a new access node; setting a number of times by which the new access node transmits equal symbols and a number of times by which at least one existing access node transmits the equal symbols when the connection of the new access node is detected; transmitting the equal symbols by the determined number of times by each access node; and performing synchronization by means of the symbols received from the access nodes by the terminal.
    • 公开了一种基于OFDM的通信系统中的符号同步方法,其包括支持终端的无线连接的多个接入节点,支持接入节点的每个终端的多连接,并通过循环前缀进行同步。 符号同步方法包括监视新接入节点的连接; 设置新接入节点在检测到新的接入节点的连接时发送相等符号的次数和多个次数,通过该次数至少一个现有的接入节点发送相等的符号; 通过每个接入节点发送所确定的相等符号次数; 并通过终端从接入节点接收的符号来执行同步。
    • 28. 发明授权
    • Relaying method of a mobile communication system and system thereof
    • 移动通信系统的中继方法及其系统
    • US08223659B2
    • 2012-07-17
    • US11812517
    • 2007-06-19
    • Mi-Sun DoEunhyun KwonJongho BangJaiyong Lee
    • Mi-Sun DoEunhyun KwonJongho BangJaiyong Lee
    • G01R31/08
    • H04W40/12H04B7/2606H04W16/26H04W40/22
    • A method for setting a path by a base station in a mobile communication system and a system thereof are provided. The base station measures quality of a link directly connected to the mobile terminal using the received signal, if a signal is directly received from a mobile terminal. If the signal is received via at least one relaying node, the base station calculates quality of an entire path determined taking quality of each link into account, depending on the signal received via the at least one relaying node. The base station compares the calculated quality of the entire path with the quality of the directly connected link, and determines an optimal path according to the comparison result. The base station sends a relaying request message to a relaying node corresponding to the optimal path. Upon receipt of a relaying response message from the relaying node, the base station configures new broadcast information and broadcasts the newly configured broadcast information.
    • 提供了一种用于在移动通信系统及其系统中由基站设置路径的方法。 如果从移动终端直接接收到信号,则基站使用接收到的信号来测量直接连接到移动终端的链路的质量。 如果经由至少一个中继节点接收到该信号,则基于通过至少一个中继节点接收的信号,基站考虑到考虑每个链路的质量而确定的整个路径的质量。 基站将整个路径的计算质量与直接连接链路的质量进行比较,并根据比较结果确定最优路径。 基站向对应于最优路径的中继节点发送中继请求消息。 在从中继节点接收到中继响应消息时,基站配置新的广播信息并广播新配置的广播信息。
    • 30. 发明授权
    • Fast handover method for IPv6 over 802.16 network
    • IPv6 over 802.16网络的快速切换方法
    • US07787422B2
    • 2010-08-31
    • US11480508
    • 2006-07-05
    • Hee-Jin JangYoun-Hee HanMi-Sun Do
    • Hee-Jin JangYoun-Hee HanMi-Sun Do
    • H04W4/00
    • H04W36/0011H04W80/04
    • A handover method of a mobile station (MS) in a mobile communication system having MSs and radio access stations (RASs), each of which includes an IEEE 802.16 standard-based medium access control (MAC) layer and an Internet protocol version 6 (IPv6)-based IP layer. The handover method includes the step of gathering IP network information of a neighbor RAS through a message exchange with a previous RAS. A target RAS for handover based on the gathered IP network information of the neighbor RAS is determined, after the target RAS is determined, the previous RAS tunnels data for targeting the MS to the target RAS, Then the tunneled data are received from the target RAS.
    • 具有MS和无线电接入站(RAS)的移动通信系统中的移动台(MS)的切换方法,每个移动台包括基于IEEE 802.16标准的媒体接入控制(MAC)层和因特网协议版本6(IPv6 )的IP层。 切换方法包括通过与先前RAS的消息交换来收集邻居RAS的IP网络信息的步骤。 在确定了目标RAS之后,确定用于将目标MS定位到目标RAS的先前的RAS隧道数据,从目标RAS接收到隧道数据,从而确定基于相邻RAS的收集的IP网络信息的用于切换的目标RAS 。