公开(公告)号：US20050255847A1

公开(公告)日：2005-11-17

申请号：US11130250

申请日：2005-05-17

Applicant: Youn-hee Han ,  Hee-jin Jang ,  Choong-hun Lee

Inventor： Youn-hee Han ,  Hee-jin Jang ,  Choong-hun Lee

IPC: H04L12/28 ,  H04W36/00 ,  H04W36/08 ,  H04W36/30 ,  H04W36/36 ,  H04W80/04 ,  H04W84/12 ,  H04W88/08 ,  H04Q7/20

CPC classification number: H04W36/30

Abstract: A fast handover method optimized for IEEE 802.11 networks. In a wireless local area system including a mobile terminal and at least two wireless access points (APs) that communicate with the mobile terminal over a unique radio channel, the fast handover method includes receiving a beacon frame signal from the serving AP and the neighbor APs of the mobile terminal; generating a first signal to determine a state of each of the neighbor APs based on the beacon frame signal received from each of the neighbor APs; comparing the first signal with predefined thresholds, classifying the neighbor APs into a detected AP, a candidate AP, and a target AP according to a result of the comparison, and storing the classification result in a neighbor AP list; and selecting an AP for the handover based on the classification result in the neighbor AP list.

Abstract translation: 针对IEEE 802.11网络优化的快速切换方法。 在包括移动终端的无线局域系统和通过唯一无线电信道与移动终端进行通信的至少两个无线接入点（AP）中，快速切换方法包括从服务AP接收信标帧信号和邻居AP 的移动终端; 基于从每个相邻AP接收到的信标帧信号，生成第一信号以确定每个相邻AP的状态; 将所述第一信号与预定阈值进行比较，根据所述比较结果将所述相邻AP分类为检测到的AP，候选AP和目标AP，并将所述分类结果存储在相邻AP列表中; 并根据邻居AP列表中的分类结果选择用于切换的AP。

公开(公告)号：US08275383B2

公开(公告)日：2012-09-25

申请号：US12264291

申请日：2008-11-04

Applicant: Hee Jin Jang ,  Su Won Lee ,  Daehyoung Hong ,  Bongjhin Shin

Inventor： Hee Jin Jang ,  Su Won Lee ,  Daehyoung Hong ,  Bongjhin Shin

IPC: H04W72/04

CPC classification number: H04W72/04 ,  H04W4/08 ,  H04W72/042 ,  H04W84/12 ,  H04W88/08

Abstract: A method for ranging in a wireless communication system and a communication apparatus and/or system using the same are provided. A base station (BS) device includes a terminal grouping unit to group terminals associated with the BS device into a plurality of groups, a radio resource assignment unit to allocate a radio resource assigned to the BS device to each of the plurality of groups, a transmission unit to transmit information about a radio resource assigned to a first group of the plurality of groups to a terminal included in the first group, and a receiving unit to receive a ranging signal from the terminal using the radio resource assigned to the first group, wherein the terminal grouping unit assigns the terminal to be included in a second group of the plurality of groups where the ranging signal is not received by the receiving unit.

Abstract translation: 提供了一种无线通信系统中的测距方法以及使用该方法的通信装置和/或系统。 基站（BS）设备包括：终端分组单元，用于将与BS设备相关联的终端分组成多个组;无线电资源分配单元，将分配给所述BS设备的无线电资源分配给所述多个组中的每个组; 发送单元，将分配给所述多个组中的第一组的无线电资源的信息发送到包括在所述第一组中的终端;以及接收单元，使用分配给所述第一组的无线电资源从所述终端接收测距信号， 其中，所述终端分组单元将所述终端分配给所述接收单元未接收到所述测距信号的所述多个组的第二组中。

公开(公告)号：US20090239534A1

公开(公告)日：2009-09-24

申请号：US12178822

申请日：2008-07-24

Applicant: Hee Jin Jang ,  Su Won Lee

Inventor： Hee Jin Jang ,  Su Won Lee

IPC: H04Q7/20

CPC classification number: H04L63/102 ,  H04L63/0272 ,  H04L63/164 ,  H04W8/18 ,  H04W12/08

Abstract: An apparatus and system for registering profile information of a terminal in a network is provided. A profile information agent includes a receiver which receives a profile information transmission request message containing profile information associated with a terminal and a transmitter which transmits a profile information registration request message to a profile information server, the profile information registration request message including the profile information.

Abstract translation: 提供一种用于在网络中注册终端的简档信息的装置和系统。 简档信息代理包括：接收器，其接收包含与终端相关联的简档信息的简档信息传输请求消息，以及向简档信息服务器发送简档信息注册请求消息的发送器，所述简档信息注册请求消息包括简档信息。

公开(公告)号：US07317709B2

公开(公告)日：2008-01-08

申请号：US11291892

申请日：2005-12-02

Applicant: Hee-jin Jang ,  Youn-hee Han ,  Xiaoyu Liu

Inventor： Hee-jin Jang ,  Youn-hee Han ,  Xiaoyu Liu

IPC: H04Q7/00

CPC classification number: H04L63/08 ,  H04L63/062 ,  H04L63/0892 ,  H04W12/06 ,  H04W36/0011 ,  H04W36/0016 ,  H04W80/04 ,  H04W84/12 ,  H04W88/08

Abstract: Disclosed is a method for fast handover in a wireless security data communication environment. The fast handover method for a mobile node connected to a network via an access point to perform a data communication in a wireless communication environment according to the present invention includes: performing an authentication while communicating with an authentication server having registration information about the mobile node via an uncontrolled port of the access point so as to make the mobile node connected to the network; performing a mobile Internet Protocol (IP) registration for binding a Care-of-Address (CoA) to a home agent and a correspondent node (CN) via the access point in parallel with performing the authentication; and opening a control port of the access point and relaying data transceived at the mobile node using the CoA when the authentication and the registration being successfully completed. Accordingly, a fast handover of the mobile node can be supported.

Abstract translation: 公开了一种在无线安全数据通信环境中快速切换的方法。 根据本发明的用于经由接入点连接到网络的移动节点的快速切换方法包括：在与具有关于移动节点的注册信息的认证服务器通信的同时进行认证，所述认证服务器经由 接入点的不受控端口，以使移动节点连接到网络; 执行移动因特网协议（IP）注册，以通过与执行认证并行地经由接入点来绑定归属代理和通信节点（CN）的转交地址（CoA）; 并且当验证和注册成功完成时，使用CoA打开接入点的控制端口并中继在移动节点处收发的数据。 因此，可以支持移动节点的快速切换。

公开(公告)号：US20060176853A1

公开(公告)日：2006-08-10

申请号：US11257104

申请日：2005-10-25

Applicant: Xiaoyu Liu ,  Hee-jin Jang ,  Youn-hee Han

Inventor： Xiaoyu Liu ,  Hee-jin Jang ,  Youn-hee Han

IPC: H04Q7/00

CPC classification number: H04W36/14 ,  H04W36/0055 ,  H04W84/12

Abstract: A handover management apparatus and method for heterogeneous networks is provided. The handover management method includes receiving a handover request notification from a serving access node (AN) that is located in a first wireless network and connected to a mobile node (MN) and extracting information from the received handover request notification. The extracted information relates to a target AN that is located in a second wireless network heterogeneous from the first wireless network. The method further includes changing the target AN, which is discovered from the extracted information, to an AN of the MN and storing information associating the mobile node with the target access node.

Abstract translation: 提供了一种用于异构网络的切换管理装置和方法。 切换管理方法包括从位于第一无线网络中并连接到移动节点（MN）并从接收的切换请求通知中提取信息的服务接入节点（AN）接收切换请求通知。 所提取的信息涉及位于与第一无线网络异构的​​第二无线网络中的目标AN。 该方法还包括将从所提取的信息中发现的目标AN改变为MN的AN并存储将移动节点与目标接入节点相关联的信息。

公开(公告)号：US08547936B2

公开(公告)日：2013-10-01

申请号：US13345103

申请日：2012-01-06

Applicant: Chee Ha Kim ,  Hee-Jin Jang ,  Boung Jun Lee ,  Jong Ho Bang ,  Su Won Lee

Inventor： Chee Ha Kim ,  Hee-Jin Jang ,  Boung Jun Lee ,  Jong Ho Bang ,  Su Won Lee

IPC: H04W4/00

CPC classification number: H04W36/14 ,  H04W36/18

Abstract: A method of providing a handover service to a mobile communication terminal supporting multi-modal communications, and a mobile communication terminal for performing the method are provided. More particularly, a method of eliminating an interruption of a data transmission service occurring during a handover between different communication networks, and a terminal for performing the method are provided. A method of providing a handover service of a mobile communication terminal supporting multi-modal communications can include: transmitting and receiving data to/from a corresponding node via a first access network and a second access network while simultaneously maintaining an association with the first access network and the second access network, determining a point in time of completing a handover registration, and releasing an association with the first access network after the point in time of completing the handover registration.

Abstract translation: 提供了一种向支持多模态通信的移动通信终端提供切换服务的方法，以及用于执行该方法的移动通信终端。 更具体地，提供了消除在不同通信网络之间的切换期间发生的数据传输服务的中断的方法以及用于执行该方法的终端。 提供支持多模式通信的移动通信终端的切换服务的方法可以包括：经由第一接入网络和第二接入网络向/从相应节点发送和接收数据，同时保持与第一接入网络的关联 和第二接入网络，确定完成切换注册的时间点，以及在完成切换注册的时间点之后释放与第一接入网络的关联。

公开(公告)号：US08412198B2

公开(公告)日：2013-04-02

申请号：US11520784

申请日：2006-09-14

Applicant: Hee-Jin Jang ,  Jae-Hoon Kim ,  Youn-Hee Han ,  Jong-Ho Bang

Inventor： Hee-Jin Jang ,  Jae-Hoon Kim ,  Youn-Hee Han ,  Jong-Ho Bang

IPC: H04W36/00

CPC classification number: H04L61/6022 ,  H04L29/12311 ,  H04L29/12839 ,  H04L61/2084 ,  H04W8/26 ,  H04W80/04 ,  H04W88/08

Abstract: An apparatus and method for providing a seamless communication service in a wireless communication system. The method includes transmitting a first message to a base station when an IP subnet has been changed due to movement of the portable terminal, the first message including a Medium Access Control (MAC) address of the portable terminal, receiving IP address information from the base station, which can be used in a new IP subnet, and configuring a new IP address based on the received IP address information.

Abstract translation: 一种用于在无线通信系统中提供无缝通信服务的装置和方法。 该方法包括当由于便携式终端的移动而改变IP子网时向基站发送第一消息，该第一消息包括便携式终端的媒体接入控制（MAC）地址，从基站接收IP地址信息 站，可以在新的IP子网中使用，并根据接收的IP地址信息配置新的IP地址。

公开(公告)号：US08107417B2

公开(公告)日：2012-01-31

申请号：US11826881

申请日：2007-07-19

Applicant: Jin-Hyeock Choi ,  Hee-Jin Jang

Inventor： Jin-Hyeock Choi ,  Hee-Jin Jang

IPC: H04W4/00

CPC classification number: H04W8/26 ,  H04L29/12216 ,  H04L29/1232 ,  H04L61/2007 ,  H04L61/2092 ,  H04W80/04 ,  H04W88/02

Abstract: A method and mobile terminal for allocating an Internet protocol (IP) address in a wireless network. A method of allocating an IP address in a wireless network which is applied to a system including a mobile terminal and an access router (AR) storing IP addresses, which are used on a connected link, in an address cache, managing the IP addresses, and performing a duplicate address detection (DAD) based on the IP addresses, the method including confirming whether a notification message, transmitted from the AR, is received, and automatically configuring an IP address and requesting the AR to perform the DAD with respect to the automatically configured IP address, when the notification message is received.

Abstract translation: 一种用于在无线网络中分配因特网协议（IP）地址的方法和移动终端。 一种在无线网络中分配IP地址的方法，该方法应用于包括移动终端的系统和在连接的链路上存储用于地址高速缓存中的IP地址的接入路由器（AR），管理IP地址， 并且基于所述IP地址执行重复地址检测（DAD），所述方法包括确认是否接收到从所述AR发送的通知消息，并且自动配置IP地址并请求AR执行所述DAD 当收到通知消息时，会自动配置IP地址。

公开(公告)号：US07948947B2

公开(公告)日：2011-05-24

申请号：US11324302

申请日：2006-01-04

Applicant: Hee-jin Jang ,  Xiaoyu Liu ,  Youn-hee Han

Inventor： Hee-jin Jang ,  Xiaoyu Liu ,  Youn-hee Han

IPC: H04Q7/00 ,  H04B7/00

CPC classification number: H04W36/0011 ,  H04L1/16 ,  H04L69/167 ,  H04W80/04 ,  H04W80/06

Abstract: A handoff apparatus and method in FMIPv6 for seamless TCP packet transmissions. The handoff method includes steps of intercepting by a previous access router certain TCP packets sent from a correspondent node to a previous temporary address of a mobile node; and creating a TCP ACK by the previous access router in response to the certain TCP packets and sending by the previous access router the created TCP ACK to the correspondent node every time the certain TCP packets are forwarded to a new access router through a bi-directional tunnel. The handoff method has an advantage in that the packet transmission rate can be secured at the same level as the mobile node stays still during the performance of the handoff of the mobile node since the previous access router instead of the mobile node creates and sends the TCP ACK to the correspondent node during the performance of the handoff of the mobile node.

Abstract translation: FMIPv6中的切换装置和方法，用于无缝TCP分组传输。 切换方法包括以下步骤：由先前的接入路由器拦截从对端节点发送到移动节点的先前临时地址的某些TCP分组; 并且由先前的接入路由器响应于某些TCP分组创建TCP ACK，并且在每当某些TCP分组被转发到新的接入路由器时通过双向方式将先前的接入路由器发送所创建的TCP ACK到对端节点 隧道。 切换方法具有的优点在于，在移动节点的切换执行期间，分组传输速率可以确保在与移动节点保持静止相同的水平，因为先前的接入路由器而不是移动节点创建并发送TCP 在执行移动节点的切换期间向对方节点发送ACK。

公开(公告)号：US07676226B2

公开(公告)日：2010-03-09

申请号：US11130250

申请日：2005-05-17

Applicant: Youn-hee Han ,  Hee-jin Jang ,  Choong-hun Lee

Inventor： Youn-hee Han ,  Hee-jin Jang ,  Choong-hun Lee

IPC: H04W36/00

CPC classification number: H04W36/30

Abstract: A fast handover method optimized for IEEE 802.11 networks. In a wireless local area system including a mobile terminal and at least two wireless access points (APs) that communicate with the mobile terminal over a unique radio channel, the fast handover method includes receiving a beacon frame signal from the serving AP and the neighbor APs of the mobile terminal; generating a first signal to determine a state of each of the neighbor APs based on the beacon frame signal received from each of the neighbor APs; comparing the first signal with predefined thresholds, classifying the neighbor APs into a detected AP, a candidate AP, and a target AP according to a result of the comparison, and storing the classification result in a neighbor AP list; and selecting an AP for the handover based on the classification result in the neighbor AP list.

Abstract translation: 针对IEEE 802.11网络优化的快速切换方法。 在包括移动终端的无线局域系统和通过唯一无线电信道与移动终端进行通信的至少两个无线接入点（AP）中，快速切换方法包括从服务AP接收信标帧信号和邻居AP 的移动终端; 基于从每个相邻AP接收到的信标帧信号，生成第一信号以确定每个相邻AP的状态; 将所述第一信号与预定阈值进行比较，根据所述比较结果将所述相邻AP分类为检测到的AP，候选AP和目标AP，并将所述分类结果存储在相邻AP列表中; 并根据邻居AP列表中的分类结果选择用于切换的AP。