公开(公告)号：US20060146803A1

公开(公告)日：2006-07-06

申请号：US11286329

申请日：2005-11-25

申请人： Eun-Hui Bae ,  O-Sok Song ,  Sung-Ho Choi ,  Dong-Ho Cho ,  Hyun-Ho Choi

发明人： Eun-Hui Bae ,  O-Sok Song ,  Sung-Ho Choi ,  Dong-Ho Cho ,  Hyun-Ho Choi

IPC分类号： H04L12/66

CPC分类号： H04L63/0869 ,  H04L63/04 ,  H04W8/26 ,  H04W12/02 ,  H04W12/06 ,  H04W36/0016 ,  H04W80/04

摘要： A seamless handoff system and method reduces delay and packet loss during handoff of user equipment (UE) from a Wireless Local Area Network (WLAN) network to a Universal Mobile Telecommunication System (UMTS) network. The handoff system and method performs pre-registration and pre-authentication processes before the occurrence of a handoff, buffers packets being delivered to a UE during a handoff period, and forwards the buffered packets to the UE after completion of the handoff, thereby reducing packet loss that can occur during handoff.

摘要翻译： 无缝切换系统和方法减少用户设备（UE）从无线局域网（WLAN）网络切换到通用移动电信系统（UMTS）网络期间的延迟和分组丢失。 切换系统和方法在切换发生之前执行预注册和预认证过程，在切换周期期间缓存递送给UE的分组，并且在切换完成之后将缓冲的分组转发到UE，从而减少分组 在切换过程中可能发生的损失。

公开(公告)号：US20060104252A1

公开(公告)日：2006-05-18

申请号：US11272475

申请日：2005-11-14

申请人： O-Sok Song ,  Sung-Ho Choi ,  Eun-Hui Bae ,  Chong-Ho Choi ,  Young-Jip Kim ,  Dong-Young Kim

发明人： O-Sok Song ,  Sung-Ho Choi ,  Eun-Hui Bae ,  Chong-Ho Choi ,  Young-Jip Kim ,  Dong-Young Kim

IPC分类号： H04Q7/24

CPC分类号： H04L63/0272 ,  H04L63/061 ,  H04L63/08 ,  H04L63/0869 ,  H04L63/162 ,  H04W8/06 ,  H04W8/14 ,  H04W80/04

摘要： A communication method and apparatus using the IP address of a gateway for an MN in a VPN are provided. When the MN is to access the VPN, the gateway acting an FA in the VPN performs a Mobile IP registration on behalf of the MN and is allocated a HoA for the MN from an HA. Therefore, the number of addresses required for the Mobile IP registration of the MN is reduced and overlap between an IP-in-IP tunnel for Mobile Internet and an IPsec tunnel for the VPN is avoided. As a result, packet transmission overhead is reduced.

摘要翻译： 提供了使用VPN中的MN的网关的IP地址的通信方法和装置。 当MN要访问VPN时，在VPN中执行FA的网关代表MN执行移动IP注册，并从HA分配给MN的HoA。 因此，MN的移动IP注册所需的地址数量减少，并且避免了用于移动互联网的IP-in-IP隧道和VPN的IPsec隧道之间的重叠。 结果，分组传输开销降低。

公开(公告)号：US09232444B2

公开(公告)日：2016-01-05

申请号：US11490530

申请日：2006-07-21

申请人： Eun-Hui Bae ,  Sung-Ho Choi ,  O-Sok Song ,  Han-Na Lim

发明人： Eun-Hui Bae ,  Sung-Ho Choi ,  O-Sok Song ,  Han-Na Lim

IPC分类号： H04W36/18 ,  H04W36/00 ,  H04W36/14

CPC分类号： H04W36/14 ,  H04W24/10 ,  H04W36/0011 ,  H04W36/18 ,  H04W76/12

摘要： A method and apparatus for performing a L3 handover between CNs in a packet-switched network are provided. When a UE moves from an old RAN to a new RAN, the UE sends a measurement report message including cell information to the old RAN. The old or new RAN determines whether to perform a L3 handover. If the L3 handover is required, a tunnel is established between the new RAN and a new CN. The UE performs a handover from the old RAN to the new RAN, without establishing a tunnel between the new RAN and an old CN. Upon detection of the movement of the UE, the new RAN sends a L2 handover complete message to the old RAN. After moving to the new RAN, the UE acquires a new IP address, performs the L3 handover, and communicates with the new CN through the new RAN.

摘要翻译： 提供了一种用于在分组交换网络中的CN之间执行L3切换的方法和装置。 当UE从旧的RAN移动到新的RAN时，UE向旧的RAN发送包括小区信息的测量报告消息。 旧的或新的RAN确定是否执行L3切换。 如果需要L3切换，则在新的RAN和新的CN之间建立隧道。 UE不会在新的RAN和旧的CN之间建立隧道，从旧的RAN进行到新的RAN的切换。 在检测到UE的移动时，新的RAN向旧的RAN发送L2切换完成消息。 移动到新的RAN后，UE获取新的IP地址，执行L3切换，并通过新的RAN与新的CN进行通信。

公开(公告)号：US08018858B2

公开(公告)日：2011-09-13

申请号：US11972917

申请日：2008-01-11

申请人： Han-Na Lim ,  Tae-Sun Yeoum ,  Eun-Hui Bae ,  O-Sok Song ,  Sung-Ho Choi

发明人： Han-Na Lim ,  Tae-Sun Yeoum ,  Eun-Hui Bae ,  O-Sok Song ,  Sung-Ho Choi

IPC分类号： H04L12/26

CPC分类号： H04L65/1073 ,  H04L65/1016 ,  H04L69/40

摘要： A method and system in which upon occurrence of a P-CSCF failure, a network sends an IMS reregistration request message to a UE. An S-CSCF or an AS monitors a P-CSCF to detect occurrence of a failure in the P-CSCF. Upon detecting the occurrence of a P-CSCF failure, the S-CSCF or the AS sends a request message for IMS reregistration to the UEs being served by the failed P-CSCF. In this manner, the UE can continuously receive the service even though a failure occurs in the P-CSCF.

摘要翻译： 一种发生P-CSCF故障的方法和系统，网络向UE发送IMS重新注册请求消息。 S-CSCF或AS监视P-CSCF以检测P-CSCF中的故障的发生。 在检测到P-CSCF故障的发生时，S-CSCF或AS向由失败的P-CSCF服务的UE发送用于IMS重新注册的请求消息。 以这种方式，即使在P-CSCF中发生故障，UE也可以连续地接收服务。

公开(公告)号：US20080186956A1

公开(公告)日：2008-08-07

申请号：US12026161

申请日：2008-02-05

申请人： Tae-Sun Yeoum ,  Eun-Hui Bae ,  Sung-Ho Choi ,  O-Sok Song ,  Han-Na Lim

发明人： Tae-Sun Yeoum ,  Eun-Hui Bae ,  Sung-Ho Choi ,  O-Sok Song ,  Han-Na Lim

IPC分类号： H04L12/66

CPC分类号： H04L12/66 ,  H04L65/1016 ,  H04L65/1083

摘要： A method and system for processing a call change request in an IMS are provided, in which a network entity receives a call request message requesting a first call from a calling UE, stores call information and caller information of the call request message, forwards the call request message to a called UE, acquires, upon receipt of a call change request message requesting change of the first call to a second call from the called UE during the first call, the caller information of the calling UE using an old call information included in the call change request message and the stored call information, inserts the caller information in receiver information of the call change request message, delivers the call change request message to the calling UE, and establishes the second call between the calling UE and the called UE by replacing the first call with the second call.

摘要翻译： 提供了一种用于处理IMS中的呼叫改变请求的方法和系统，其中网络实体从呼叫UE接收到请求第一呼叫的呼叫请求消息，存储呼叫信息和呼叫请求消息的呼叫者信息，转发呼叫 向被叫UE发送请求消息，在第一次呼叫期间接收到请求从被叫用户的第二呼叫改变第一呼叫的呼叫改变请求消息时，主叫用户的呼叫者信息使用包含在呼叫中的旧呼叫信息 呼叫改变请求消息和所存储的呼叫信息，将呼叫者信息插入到呼叫改变请求消息的接收者信息中，将呼叫改变请求消息传递给呼叫UE，并且通过以下方式建立主叫UE和被叫UE之间的第二呼叫： 用第二个呼叫替换第一个呼叫。

公开(公告)号：US20070116011A1

公开(公告)日：2007-05-24

申请号：US11544927

申请日：2006-10-10

申请人： Han-Na Lim ,  Sung-Ho Choi ,  O-Sok Song ,  Eun-Hui Bae

发明人： Han-Na Lim ,  Sung-Ho Choi ,  O-Sok Song ,  Eun-Hui Bae

IPC分类号： H04L12/56

CPC分类号： H04W8/087 ,  H04L29/1232 ,  H04L61/2092 ,  H04L65/1016 ,  H04W8/26 ,  H04W36/0011 ,  H04W36/0033 ,  H04W36/12 ,  H04W80/04

摘要： A method and apparatus for communications of a UE using an IP address in a mobile communication system are provided. When the UE moves from an old subnet managed by an old gateway to a new subnet managed by a new gateway, the UE determines whether there are allocated radio resources. In the absence of the allocated radio resources, the UE determines whether an IP-based application service is in progress. If the IP-based application service is in progress, the UE determines to reuse an old IP address in the new subnet. If the IP-based application service is not in progress, the UE determines to use a new IP address in the new subnet. Then the UE sends to the new gateway an RAU request message including an indication indicating whether the old IP address or the new IP address will be used in the new subnet.

摘要翻译： 提供了一种用于在移动通信系统中使用IP地址的UE的通信的方法和装置。 当UE从由旧网关管理的旧子网移动到由新网关管理的新子网时，UE确定是否有分配的无线资源。 在没有分配的无线电资源的情况下，UE确定是否正在进行基于IP的应用服务。 如果基于IP的应用服务正在进行中，则UE确定在新子网中重新使用旧的IP地址。 如果基于IP的应用服务不在进行中，则UE确定在新子网中使用新的IP地址。 然后，UE向新网关发送包括指示是否将在新子网中使用旧IP地址或新IP地址的指示的RAU请求消息。

公开(公告)号：US20070064686A1

公开(公告)日：2007-03-22

申请号：US11490530

申请日：2006-07-21

申请人： Eun-Hui Bae ,  Sung-Ho Choi ,  O-Sok Song ,  Han-Na Lim

发明人： Eun-Hui Bae ,  Sung-Ho Choi ,  O-Sok Song ,  Han-Na Lim

IPC分类号： H04L12/66

CPC分类号： H04W36/14 ,  H04W24/10 ,  H04W36/0011 ,  H04W36/18 ,  H04W76/12

摘要： A method and apparatus for performing a L3handover between CNs in a packet-switched network are provided. When a UE moves from an old RAN to a new RAN, the UE sends a measurement report message including cell information to the old RAN. The old or new RAN determines whether to perform a L3 handover. If the L3 handover is required, a tunnel is established between the new RAN and a new CN. The UE performs a handover from the old RAN to the new RAN, without establishing a tunnel between the new RAN and an old CN. Upon detection of the movement of the UE, the new RAN sends a L2 handover complete message to the old RAN. After moving to the new RAN, the UE acquires a new IP address, performs the L3 handover, and communicates with the new CN through the new RAN.

摘要翻译： 提供了一种用于在分组交换网络中的CN之间执行L 3切换的方法和装置。 当UE从旧的RAN移动到新的RAN时，UE向旧的RAN发送包括小区信息的测量报告消息。 旧的或新的RAN确定是否执行L 3切换。 如果需要L 3切换，则在新的RAN和新的CN之间建立隧道。 UE不会在新的RAN和旧的CN之间建立隧道，从旧的RAN进行到新的RAN的切换。 在检测到UE的移动时，新的RAN向旧的RAN发送L 2切换完成消息。 移动到新的RAN后，UE获取新的IP地址，执行L 3切换，并通过新的RAN与新的CN进行通信。

公开(公告)号：US20060256779A1

公开(公告)日：2006-11-16

申请号：US11429429

申请日：2006-05-08

申请人： Han-Na Lim ,  Sung-Ho Choi ,  O-Sok Song ,  Jae-Jin Kim ,  Eun-Hui Bae

发明人： Han-Na Lim ,  Sung-Ho Choi ,  O-Sok Song ,  Jae-Jin Kim ,  Eun-Hui Bae

IPC分类号： H04L12/66

CPC分类号： H04W36/14 ,  H04L29/06027 ,  H04L65/1016 ,  H04W36/0022 ,  H04W68/00 ,  H04W88/06

摘要： A method and apparatus for, upon generation of an event triggering a change in the state of a UE participating in a call, sending service information changed due to the state change to the other participating entity and notifying each user of the service information are provided. When a state change event occurs to a UE, the UE checks its available services and sends a message including service information indicating the available services to the other entity connected to the UE. Therefore, the other entity has knowledge of the actual available services of the UE in a changed environment.

摘要翻译： 提供一种方法和装置，用于在产生触发参与呼叫的UE的状态改变的事件时，将由于状态改变而改变的服务信息发送给另一个参与实体，并通知每个用户该服务信息。 当UE发生状态改变事件时，UE检查其可用业务，并将指示可用业务的业务信息的消息发送给连接到该UE的其他实体。 因此，另一实体在改变的环境中具有UE的实际可用业务知识。

公开(公告)号：US08031672B2

公开(公告)日：2011-10-04

申请号：US11794436

申请日：2005-12-27

申请人： Holur Balaji ,  {acute over (V)}aidya Rahul ,  Rajadurai Rajavelsamy ,  Jeedigunta Venkateswar ,  O-Sok Song

发明人： Holur Balaji ,  {acute over (V)}aidya Rahul ,  Rajadurai Rajavelsamy ,  Jeedigunta Venkateswar ,  O-Sok Song

IPC分类号： H04W4/00

CPC分类号： H04W12/02 ,  H04L63/0428 ,  H04L63/164 ,  H04W80/04

摘要： A method for connection roaming a Mobile Node (MN) to a Network GateWay (NGW) for providing secure data path using Internet Protocol (IP) security procedure. Also Mobile IP (MIP) is required for providing mobility to the user, when the MN moves from one sub-network to another. However, when the Home Address of the network is not known, a cyclic interdependency is observed between the IP Security (Ipsec) procedures and IP procedures. If the home address of the MN is not known initially during the procedure, IPsec Security Associations (SA's) are formed between the MN and NGW such that only IP packets are passed through. After the IP Registration is completed, the Home Address of the MN is known from the MIP registration Reply. MN now forms a data path tunnel with the NGW by exchanging Create_Child_SA messages.

摘要翻译： 一种用于将移动节点（MN）漫游到使用因特网协议（IP）安全过程提供安全数据路径的网络网关（NGW）的方法。 当MN从一个子网移动到另一个子网时，还需要移动IP（MIP）来为用户提供移动性。 然而，当网络的归属地址不知道时，在IP安全（Ipsec）过程和IP过程之间观察到循环相互依赖。 如果最初在该过程中最初没有知道MN的归属地址，则在MN和NGW之间形成IPsec安全关联（SA），使得只有IP分组被通过。 IP注册完成后，MN的归属地址从MIP注册回复中知道。 MN现在通过交换Create_Child_SA消息与NGW形成数据路径隧道。

公开(公告)号：US07391754B2

公开(公告)日：2008-06-24

申请号：US11286329

申请日：2005-11-25

申请人： Eun-Hui Bae ,  O-Sok Song ,  Sung-Ho Choi ,  Dong-Ho Cho ,  Hyun-Ho Choi

发明人： Eun-Hui Bae ,  O-Sok Song ,  Sung-Ho Choi ,  Dong-Ho Cho ,  Hyun-Ho Choi

IPC分类号： H04Q7/00 ,  H04Q7/20

CPC分类号： H04L63/0869 ,  H04L63/04 ,  H04W8/26 ,  H04W12/02 ,  H04W12/06 ,  H04W36/0016 ,  H04W80/04

摘要： A seamless handoff system and method reduces delay and packet loss during handoff of user equipment (UE) from a Wireless Local Area Network (WLAN) network to a Universal Mobile Telecommunication System (UMTS) network. The handoff system and method performs pre-registration and pre-authentication processes before the occurrence of a handoff, buffers packets being delivered to a UE during a handoff period, and forwards the buffered packets to the UE after completion of the handoff, thereby reducing packet loss that can occur during handoff.

摘要翻译： 无缝切换系统和方法减少用户设备（UE）从无线局域网（WLAN）网络切换到通用移动电信系统（UMTS）网络期间的延迟和分组丢失。 切换系统和方法在切换发生之前执行预注册和预认证过程，在切换周期期间缓存递送给UE的分组，并且在切换完成之后将缓冲的分组转发到UE，从而减少分组 在切换过程中可能发生的损失。