公开(公告)号：WO2009078573A3

公开(公告)日：2009-08-13

申请号：PCT/KR2008006162

申请日：2008-10-17

Applicant: KOREA ELECTRONICS TELECOMM ,  KIM SUN CHEUL ,  PARK PYUNG KOO ,  MOON SEONG ,  SHIN YOUNG SOO ,  RYU HO YONG ,  HONG SUNG BACK

Inventor： KIM SUN CHEUL ,  PARK PYUNG KOO ,  MOON SEONG ,  SHIN YOUNG SOO ,  RYU HO YONG ,  HONG SUNG BACK

IPC: H04B7/26

CPC classification number: H04W36/0022 ,  H04W76/041

Abstract: The invention relates to a method and an apparatus for controlling seamless handover between heterogeneous networks based on IPv6 over IPv4 tunneling. When IPv6 service is provided using tunneling in an IPv4 based network environment, handover of a mobile terminal between different networks is achieved through switching of an active tunnel and a standby tunnel, and thus handover between different networks is facilitated and data loss is prevented to secure continuity of service provided to the mobile terminal even when the mobile terminal hands over to a heterogeneous network.

Abstract translation: 本发明涉及一种基于IPv6 over IPv4隧道来控制异构网络间的无缝切换的方法和装置。 当在基于IPv4的网络环境中使用隧道技术提供IPv6服务时，通过主动隧道和备用隧道的切换实现移动终端在不同网络之间的切换，从而促进不同网络之间的切换，防止数据丢失 即使当移动终端转移到异构网络时，也提供给移动终端的服务的连续性。

公开(公告)号：WO2009075490A3

公开(公告)日：2009-08-06

申请号：PCT/KR2008007188

申请日：2008-12-05

Applicant: KOREA ELECTRONICS TELECOMM ,  KO NAM SEOK ,  RYU HO YONG ,  HONG SUNG BACK ,  CHOI YOUNG BEOM ,  LEE KYEONG HO ,  JUN KYUNG PYO

Inventor： KO NAM SEOK ,  RYU HO YONG ,  HONG SUNG BACK ,  CHOI YOUNG BEOM ,  LEE KYEONG HO ,  JUN KYUNG PYO

IPC: H04L12/28

CPC classification number: H04W76/022 ,  H04W8/26 ,  H04W80/045

Abstract: A method and system for supporting Internet protocol (IP) mobility independently of the IP version of a transport network are provided. The method includes providing a mobility control apparatus, which maps the home addresses of a plurality of mobile terminals, including first and second mobile terminals, and the Care-of-Addresses (CoAs) of the mobile terminals, and setting a first control tunnel between the mobility control apparatus and the first mobile terminal, the care-of-addresses varying from one transport network to another transport network; setting a second control tunnel between the mobility control apparatus and the second mobile terminal; and enabling the first and second mobile terminals to exchange a data packet with each other through the first and second control tunnels.

Abstract translation: 提供了一种独立于传输网络的IP版本来支持因特网协议（IP）移动性的方法和系统。 该方法包括提供移动性控制装置，其映射包括第一和第二移动终端的多个移动终端的归属地址和移动终端的转交地址（CoAs），并且在第 移动性控制装置和第一移动终端，转交地址从一个传输网络变化到另一个传输网络; 在所述移动性控制装置和所述第二移动终端之间设置第二控制隧道; 以及使得第一和第二移动终端能够通过第一和第二控制隧道彼此交换数据分组。

公开(公告)号：KR20090066151A

公开(公告)日：2009-06-23

申请号：KR20070133782

申请日：2007-12-18

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： NOH SUNG KEE ,  HWANG YOUNG HA ,  HONG SUNG BACK

IPC: H04B7/26 ,  H04L12/28

CPC classification number: H04W36/30 ,  H04W28/24 ,  H04W28/26 ,  H04W36/14

Abstract: A call control method and an apparatus thereof based on QoS are provided to perform a call request or a channel allocation by differentiating a call control according to a drop rate between services or a drop rate between neighboring cells. A QoS output unit(210) produces a first wireless network QoS(Quality of Service) every window. If the QoS does not reach the standards QoS, a time window controller(220) sets up the next time window as perpendicular the time window. In case the second wireless network which is the first wireless network and different kind and the possible with data communications lice mobile terminal request the house for the time window, a call control function(230) performs the first vertical handoff to the second wireless network.

Abstract translation: 提供了一种基于QoS的呼叫控制方法及其装置，用于通过根据服务之间的丢弃率或相邻小区之间的丢弃率区分呼叫控制来执行呼叫请求或信道分配。 QoS输出单元（210）每个窗口产生第一无线网络QoS（服务质量）。 如果QoS没有达到标准QoS，则时间窗口控制器（220）将下一个时间窗口设置为垂直于时间窗口。 在作为第一无线网络且不同类型的第二无线网络和可能与数据通信虱子移动终端请求房屋的时间窗口的情况下，呼叫控制功能（230）对第二无线网络执行第一垂直切换。

公开(公告)号：KR20090066145A

公开(公告)日：2009-06-23

申请号：KR20070133775

申请日：2007-12-18

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： AN YOON YOUNG ,  HONG SUNG BACK ,  LEE KYEONG HO

IPC: H04B7/26

CPC classification number: H04W36/14 ,  H04W36/005 ,  H04W36/08

Abstract: A handover method of a mobile terminal connected to AP and a mobile communications system using the same are provided to connect the mobile terminal to optimum AP by selecting AP according to the association of the AP, bandwidth and intensity of link signal. A mobile terminal(100) is connected to a first AP(Access Point). A media-independent handover information server(600) stores the first AP and the second AP information. In case it handovers to the second AP, the mobile terminal receives the second AP information from the media independent handover information server. If the second AP performance according to the second AP information is more excellent than the first AP performance, it handovers from the mobile terminal to the second AP.

Abstract translation: 提供了连接到AP的移动终端和使用该移动终端的移动通信系统的切换方法，以根据AP的关联，带宽和链路信号强度，通过选择AP来将移动终端连接到最佳AP。 移动终端（100）连接到第一AP（接入点）。 媒体独立切换信息服务器（600）存储第一AP和第二AP信息。 在切换到第二AP的情况下，移动终端从媒体独立切换信息服务器接收第二AP信息。 如果根据第二AP信息的第二AP性能比第一AP性能更好，则从移动终端切换到第二AP。