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    • 25. 发明授权
    • Methods and apparatus for broadcast optimization in mobile IP
    • 移动IP广播优化的方法和装置
    • US07379433B1
    • 2008-05-27
    • US10256061
    • 2002-09-25
    • Alpesh PatelKent K. Leung
    • Alpesh PatelKent K. Leung
    • H04H20/00
    • H04W60/00H04L12/189H04W4/06H04W8/06H04W8/26H04W80/04H04W88/14
    • 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.
    • 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。
    • 30. 发明授权
    • Mobile IP registration message compression
    • 移动IP注册消息压缩
    • US07224673B1
    • 2007-05-29
    • US10156225
    • 2002-05-24
    • Kent K. LeungAlpesh Patel
    • Kent K. LeungAlpesh Patel
    • H04Q7/00
    • H04W28/06H04L69/04H04W8/06H04W80/04
    • 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.
    • 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。