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1. 发明授权

US07447162B1 Methods and apparatus for anchoring of mobile nodes using DNS 有权
标题翻译：使用DNS锚定移动节点的方法和装置
公开(公告)号：US07447162B1
公开(公告)日：2008-11-04
申请号：US10187084
申请日：2002-06-28
申请人： Kent K. Leung , Milind M. Kulkarni , Alpesh Patel
发明人： Kent K. Leung , Milind M. Kulkarni , Alpesh Patel
IPC分类号： H04L12/26 , H04L12/28 , H04Q7/00 , H04Q7/24
CPC分类号： H04L43/0852 , H04L29/12066 , H04L41/048 , H04L61/1511 , H04L67/1002 , H04W8/065 , H04W80/04
摘要： Methods and apparatuses for obtaining home agent assignment. The invention uses a DNS query to signal a request for dynamic home agent assignment. The DNS query will cause a content routing device to be notified that home agent assignment is being requested. The content routing device can then use predetermined metrics to select a home agent. A DNS response will then be sent back to the device that initiated the DNS query containing the IP address of the selected home agent.
摘要翻译：获得归属代理人分配的方法和装置。本发明使用DNS查询来表示动态归属代理分配的请求。 DNS查询将导致内容路由设备被通知正在请求归属代理分配。内容路由设备然后可以使用预定的度量来选择归属代理。然后，DNS响应将发送回发起包含所选归属代理的IP地址的DNS查询的设备。

2. 发明授权

US07284057B2 Methods and apparatus for Mobile IP Home Agent clustering 有权
标题翻译：移动IP归属代理群集的方法和装置
公开(公告)号：US07284057B2
公开(公告)日：2007-10-16
申请号：US10084698
申请日：2002-02-27
申请人： Milind M. Kulkarni , Kent K. Leung , Alpesh Patel
发明人： Milind M. Kulkarni , Kent K. Leung , Alpesh Patel
IPC分类号： G06F15/16
CPC分类号： H04W8/12 , H04W80/04
摘要： Methods and apparatus for processing a registration request from a Mobile Node that has roamed to a Foreign Agent supporting Mobile IP are disclosed. In a first one of a plurality of Home Agents supporting Mobile IP, a registration request addressed to a virtual Home Agent address associated with the plurality of Home Agents is received. The registration request is then sent to a second one of the plurality of Home Agents such that the second one of the plurality of Home Agents creates a binding between the Mobile Node and the Foreign Agent. The first one of the plurality of Home Agents creates a temporary binding between the Mobile Node and the Foreign Agent. A registration reply is then received from the second one of the plurality of Home Agents. The temporary binding is then updated to create a permanent binding when the registration reply is received from the second one of the plurality of Home Agents. The registration reply is then sent to the Foreign Agent identified in the temporary binding.
摘要翻译：公开了从已经漫游到支持移动IP的外部代理的移动节点处理注册请求的方法和装置。在支持移动IP的多个归属代理的第一个中，接收寻址到与多个归属代理相关联的虚拟归属代理地址的注册请求。然后将注册请求发送到多个归属代理中的第二个归属代理，使得多个归属代理中的第二个在移动节点和外部代理之间创建绑定。多个家庭代理中的第一个在移动节点和外部代理之间创建临时绑定。然后从多个归属代理中的第二个收到注册答复。然后当从多个归属代理的第二个接收到注册回复时，更新临时绑定以创建永久绑定。然后将注册答复发送到临时绑定中标识的外部代理。

3. 发明授权

US07461169B2 DHCP based home address management of mobile IP clients 有权
标题翻译：基于DHCP的移动IP客户端的家庭地址管理
公开(公告)号：US07461169B2
公开(公告)日：2008-12-02
申请号：US10300437
申请日：2002-11-19
申请人： Madhavi Wunnava Chandra , Milind M. Kulkarni , Kent K. Leung , Alpesh Patel
发明人： Madhavi Wunnava Chandra , Milind M. Kulkarni , Kent K. Leung , Alpesh Patel
IPC分类号： G06F15/16 , H04L12/66 , H04Q7/20
CPC分类号： H04W8/04 , H04L29/12273 , H04L61/2015 , H04L61/2053 , H04W8/26 , H04W60/00 , H04W80/04 , H04W88/18
摘要： Methods and apparatuses for allowing mobile nodes to have access to mobility functions after being attached to their home networks are disclosed. The invention allows a home agent to authenticate a registration request and validate a DHCP-acquired home address even if no mobile bindings currently exist. Typically, a home agent will not create mobility bindings if a mobile node attaches itself to a home agent network segment. By using either cached information or DHCP resources, the home agent can approve a registration request.
摘要翻译：公开了允许移动节点在附接到其家庭网络之后访问移动性功能的方法和装置。本发明允许归属代理认证注册请求并验证DHCP获取的归属地址，即使当前没有移动绑定。通常，如果移动节点将自身附加到归属代理网络段，则归属代理将不会创建移动性绑定。通过使用缓存信息或DHCP资源，归属代理可以批准注册请求。

4. 发明授权

US08090828B2 Method and apparatus for reusing DHCP addresses in home addresses of mobile IP clients 有权
标题翻译：在移动IP客户端的家庭地址中重用DHCP地址的方法和装置
公开(公告)号：US08090828B2
公开(公告)日：2012-01-03
申请号：US10241969
申请日：2002-09-11
申请人： Kent K. Leung , Milind M. Kulkarni , Alpesh Patel
发明人： Kent K. Leung , Milind M. Kulkarni , Alpesh Patel
IPC分类号： G06F15/16
CPC分类号： H04W8/04 , H04L29/12273 , H04L61/2015 , H04L61/2053 , H04W8/26 , H04W60/00 , H04W80/04 , H04W88/18
摘要： Methods and apparatuses for conserving addresses. The invention allows a mobile node to manage its own address, shifting responsibility away from the home agent. The home agent is able to detect when a mobile node has already been assigned an address for use of resources on the network. When the home agent recognizes that the mobile address has already been assigned an address, it allows the mobile node to use its already-assigned address in connection with mobile IP services. Additionally, the mobile node can be notified that it is now responsible for renewing the address.
摘要翻译：保存地址的方法和装置。本发明允许移动节点管理其自己的地址，使责任远离归属代理。归属代理能够检测何时移动节点已经被分配了用于在网络上使用资源的地址。当归属代理识别到移动地址已被分配地址时，它允许移动节点使用其已经分配的与移动IP服务有关的地址。另外，可以通知移动节点现在负责更新地址。

5. 发明授权

US07599370B1 Methods and apparatus for optimizing NAT traversal in Mobile IP 有权
标题翻译：用于优化移动IP中NAT穿越的方法和装置
公开(公告)号：US07599370B1
公开(公告)日：2009-10-06
申请号：US10420402
申请日：2003-04-17
申请人： Kent K. Leung , Alpesh Patel , Milind M. Kulkarni , Madhavi W. Chandra
发明人： Kent K. Leung , Alpesh Patel , Milind M. Kulkarni , Madhavi W. Chandra
IPC分类号： H04L12/56
CPC分类号： H04L29/12471 , H04L61/2553 , H04W60/00 , H04W80/04
摘要： Methods and apparatus for optimizing NAT traversal in Mobile IP are disclosed. Various mechanisms may performed independently or in combination with one another. A first mechanism enables one-way keep alive messaging to the Home Agent, while a second mechanism enables two-way keep alive messaging to the Home Agent, thereby enabling an entry in a NAT translation table to be maintained. The two-way keep alive messaging requires that the Home Agent send an acknowledgement message, while the one-way keep alive messaging does not. Keep alive messaging may be performed at the Mobile Node or the Foreign Agent. A third mechanism enables a Foreign Agent to encapsulate a registration request packet with the Foreign Agent care-of address in the source IP address field rather than an egress interface of the Foreign Agent. A fourth mechanism enables a Mobile Node to force a Home Agent to perform UDP tunneling.
摘要翻译：公开了用于优化移动IP中NAT穿越的方法和装置。各种机制可以独立地或彼此组合地执行。第一种机制使得能够向归属代理单向保持活动消息传递，而第二种机制允许向归属代理双向保持活动消息传递，从而使NAT转换表中的条目得以维护。双向保持活着消息传递要求家庭代理发送确认消息，而单向保持活动消息传递不需要。可以在移动节点或外部代理处执行活动消息传递。第三种机制使外部代理能够在源IP地址字段而不是外部代理的出口接口封装具有外部代理转交地址的注册请求分组。第四种机制使移动节点能够强制归属代理执行UDP隧道。

6. 发明授权

US07409549B1 Methods and apparatus for dynamic home agent assignment in mobile IP 有权
标题翻译：移动IP中动态归属代理分配的方法和装置
公开(公告)号：US07409549B1
公开(公告)日：2008-08-05
申请号：US10015247
申请日：2001-12-11
申请人： Kent K. Leung , Madhavi W. Chandra , Alpesh Patel
发明人： Kent K. Leung , Madhavi W. Chandra , Alpesh Patel
IPC分类号： H04L9/00 , H04K1/00
CPC分类号： H04L9/083 , H04L9/321 , H04L61/203 , H04L63/0892 , H04L2209/80 , H04W12/04 , H04W12/06 , H04W80/04
摘要： Methods and apparatus are disclosed that enable a Home Agent to be dynamically assigned to a mobile node. A Mobility Agent supporting Mobile IP enables a mobile node to be registered with either the Mobility Agent or another “local” Home Agent, by receiving a registration request packet from the Mobile Node indicating that a key to be shared by the Mobile Node and an agent with which the Mobile Node is registering is requested. In addition, the agent with which the Mobile Node is registering (e.g., local Home Agent) may be assigned. For instance, a local Home Agent may be assigned if load balancing among multiple Home Agents is desired. A key to be shared by the Mobile Node and the agent with which the Mobile Node is registering is obtained. The key to be shared by the Mobile Node and the agent with which the Mobile Node is registering is then stored. A registration reply packet is then sent to the mobile node including the key to be shared by the Mobile Node and the agent with which the Mobile Node is registering. The mobile node may then re-register with the agent (e.g., local Home Agent) using the key.
摘要翻译：公开了使归属代理能够动态分配给移动节点的方法和装置。支持移动IP的移动代理通过从移动节点接收到由移动节点和代理共享的密钥的注册请求分组，使移动节点能够与移动性代理或另一“本地”归属代理注册请求移动节点正在注册的。此外，可以分配移动节点正在注册的代理（例如，本地归属代理）。例如，如果需要多个归属代理之间的负载平衡，则可以分配本地归属代理。获得移动节点和移动节点正在注册的代理共享的密钥。然后存储移动节点和移动节点正在注册的代理共享的密钥。然后将注册答复分组发送到移动节点，包括由移动节点和移动节点正在注册的代理共享的密钥。移动节点然后可以使用密钥对代理（例如，本地归属代理）重新注册。

7. 发明授权

US08059661B2 Methods and apparatus for using DHCP for home address management of nodes attached to an edge device and for performing mobility and address management as a proxy home agent 有权
标题翻译：用于使用DHCP进行归属地址管理的方法和装置，该节点附接到边缘设备并用于执行移动性和地址管理作为代理归属代理
公开(公告)号：US08059661B2
公开(公告)日：2011-11-15
申请号：US11027466
申请日：2004-12-29
申请人： Alpesh Patel , Kent K. Leung
发明人： Alpesh Patel , Kent K. Leung
IPC分类号： H04L12/28
CPC分类号： H04L29/12301 , H04L29/12264 , H04L29/12311 , H04L29/12933 , H04L61/2015 , H04L61/2046 , H04L61/2061 , H04L61/2076 , H04L61/2084 , H04L61/6068 , H04W8/04 , H04W8/26 , H04W80/04
摘要： Methods and apparatus for supporting the management of mobility and addresses by a Customer Premises Edge (CPE) router in a Mobile IP environment are disclosed. When a network prefix is allocated by a DHCP router to the CPE router, the CPE router divides the network prefix among its interfaces, and allocates home addresses to Mobile Nodes connected to its interfaces, as appropriate. The CPE router also assists in performing Duplicate Address Detection (DAD) to ensure that a home address that has been allocated has not already been assigned to another node. Upon completion of registration of a Mobile Node that is connected to one of the interfaces of the CPE router with its Home Agent, the CPE router assists in routing traffic to the Mobile Node. In addition, the CPE router assists in notifying nodes when one of the Mobile Nodes has moved, as well as when one of the Mobile Nodes has de-registered with the Home Agent.
摘要翻译：公开了用于支持移动IP环境中的客户驻地边缘（CPE）路由器的移动性和地址管理的方法和装置。当网络前缀由DHCP路由器分配给CPE路由器时，CPE路由器会在其接口之间划分网络前缀，并根据需要为连接到其接口的移动节点分配归属地址。 CPE路由器还协助执行重复地址检测（DAD），以确保已分配的归属地址尚未分配给另一个节点。在完成与其家乡代理连接到CPE路由器的一个接口的移动节点的注册时，CPE路由器协助将流量路由到移动节点。此外，CPE路由器协助当移动节点之一移动时通知节点，以及何时其中一个移动节点已退出归属代理。

8. 发明授权

US07379433B1 Methods and apparatus for broadcast optimization in mobile IP 有权
标题翻译：移动IP广播优化的方法和装置
公开(公告)号：US07379433B1
公开(公告)日：2008-05-27
申请号：US10256061
申请日：2002-09-25
申请人： Alpesh Patel , Kent K. Leung
发明人： Alpesh Patel , Kent K. Leung
IPC分类号： H04H20/00
CPC分类号： H04W60/00 , H04L12/189 , H04W4/06 , H04W8/06 , H04W8/26 , H04W80/04 , H04W88/14
摘要： Methods and apparatus for supporting broadcast traffic in Mobile IP are disclosed. When a Mobile Node registers via a Foreign Agent supporting Mobile IP, the Foreign Agent receives a registration request from a Mobile Node and sends the registration request to a Home Agent. A registration reply received from the Home Agent has a network mask extension including a network mask associated with the home address of the Mobile Node. The Foreign Agent then sends the registration reply to the Mobile Node. Alternatively, the Mobile Node may register via a collocated care-of address, in which case the registration reply is received directly from the Home Agent. Once the Mobile Node has obtained its network mask, it may send packets such as broadcast packets, as well as roam to its Home Agent. Additionally, in accordance with various embodiments, the Foreign Agent duplicates broadcast packets for transmission to Mobile Nodes, rather than receiving the duplicated packets from the Home Agent. In this manner, broadcast traffic in a Mobile IP environment is optimized.
摘要翻译：公开了支持移动IP广播流量的方法和装置。当移动节点通过支持移动IP的外部代理注册时，外部代理从移动节点接收注册请求，并将注册请求发送到归属代理。从归属代理接收到的注册答复具有包括与移动节点的归属地址相关联的网络掩码的网络掩码扩展。然后，外部代理将注册答复发送到移动节点。或者，移动节点可以通过并置的转交地址进行注册，在这种情况下，直接从归属代理接收注册回复。一旦移动节点获得了网络掩码，它可能会发送数据包，如广播数据包，以及漫游到其归属代理。此外，根据各种实施例，外部代理复制用于传输到移动节点的广播分组，而不是从归属代理接收重复分组。以这种方式，移动IP环境中的广播流量被优化。

9. 发明授权

US07290064B2 Adaptive feedback technique implemented in mobile IP networks 有权
标题翻译：自适应反馈技术在移动IP网络中实现
公开(公告)号：US07290064B2
公开(公告)日：2007-10-30
申请号：US10180640
申请日：2002-06-24
申请人： Alpesh Patel , Kent K. Leung , Gaetan Feige
发明人： Alpesh Patel , Kent K. Leung , Gaetan Feige
IPC分类号： G06F15/16
CPC分类号： H04W28/18 , H04L41/0896 , H04L43/0882 , H04L47/10 , H04L47/263 , H04L69/16 , H04L69/161 , H04L69/163 , H04L69/168 , H04L69/32 , H04W24/00 , H04W28/20 , H04W36/0011 , H04W36/0033 , H04W80/00 , H04W80/04 , H04W80/06
摘要： An adaptive feedback technique is described for a Mobile IP environment in which Mobile IP mechanisms provide early feedback to mechanisms in the transport layer and/or application layer of a mobile node in response to detection of changes in link characteristics of the communication used by the mobile node to communicate with a data network. Using the early feedback information, appropriate measures may then be taken in order to accommodate the changes in link characteristics. Such appropriate measures may include, for example, providing feedback to media aware applications in order to allow such applications to dynamically adjust their bandwidth requirements to accommodate the new link characteristics, modifying timeout parameters, modifying an encoding formats to accommodate the new link characteristics, notifying participants in a real-time application session of the detected changes in the link characteristics, etc.
摘要翻译：针对移动IP环境描述了自适应反馈技术，其中移动IP机制响应于移动节点的传输层和/或应用层中的机制的改变而提供对移动节点使用的通信的链路特性的变化的早期反馈节点与数据网络通信。使用早期的反馈信息，可以采取适当的措施来适应链路特征的变化。这样的适当措施可以包括例如向媒体感知应用提供反馈，以便允许这样的应用程序动态地调整其带宽需求以适应新的链路特征，修改超时参数，修改编码格式以适应新的链路特征，通知参与者在实时应用会话中检测到链接特征的变化等。

10. 发明授权

US07224673B1 Mobile IP registration message compression 有权
标题翻译：移动IP注册消息压缩
公开(公告)号：US07224673B1
公开(公告)日：2007-05-29
申请号：US10156225
申请日：2002-05-24
申请人： Kent K. Leung , Alpesh Patel
发明人： Kent K. Leung , Alpesh Patel
IPC分类号： H04Q7/00
CPC分类号： H04W28/06 , H04L69/04 , H04W8/06 , H04W80/04
摘要： Methods and apparatus for compressing registration request and reply messages are disclosed. A compressed registration request is sent by a Mobile Node to a Foreign Agent or a Home Agent (in the case of a co-located care-of address). Communication with the Mobile Node is performed using compressed registration messages, while communication between a Foreign Agent and Home Agent is performed using standard registration request and reply formats. Thus, when a Foreign Agent receives a compressed registration request, it expands the registration request and sends it to the Home Agent for processing. Upon receipt of the registration reply from the Home Agent, the Foreign Agent compresses the registration reply and sends it to the Mobile Node. When a Mobile Node registers directly with the Home Agent via a co-located care-of address, the registration request and reply messages need not be expanded, since the Home Agent is capable of interpreting, processing and generating compressed registration messages.
摘要翻译：公开了用于压缩注册请求和回复消息的方法和装置。压缩的注册请求由移动节点发送到外部代理或归属代理（在共同转交地址的情况下）。使用压缩注册消息来执行与移动节点的通信，而外部代理和归属代理之间的通信使用标准注册请求和回复格式来执行。因此，当外部代理接收到压缩注册请求时，扩展注册请求并将其发送到归属代理进行处理。在收到归属代理的注册答复后，外地代理商将注册答复压缩并发送给移动节点。当移动节点通过共同转交地址直接注册到归属代理时，由于归属代理能够解释，处理和生成压缩的注册消息，因此不需要扩展注册请求和回复消息。

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