Method and system for HAP (Host Access Point) switching

Abstract

The invention discloses a method and system for host access point (HAP) switching of a host identification protocol. The method comprises the following steps that: when an IP (Internet Protocol) address of host identification protocol (HIP) equipment is changed, the HIP equipment determines whether to switch HAP based on acquired smaller HAP information of RTT (round trip time) or the original HAP of the HIP equipment determines whether to switch the HAP according to acquired HAP information with smaller RTT between the HAP and the HIP equipment; when the HAP switching is determined to be executed, an HIP association is established between the HIP equipment and the HAP and the association between the HIP equipment with the original HAP is closed; and the original HAP transmits data of the HIP equipment to the new HAP. With the adoption of the method and the system provided by the invention, the problem that a time delay of the interaction between UE (User Equipment) and the HIP equipment is longer is solved, wherein the problem is caused by that the RTT between the UE and the HAP is increased after the UE is moved.

Description

technical field [0001] The present invention relates to the field of telecommunications, in particular to a method and system for switching a Host Identity Protocol (HIP, Host Identity Protocol) device access point (HAP). Background technique [0002] Currently, there are mainly two namespaces of the Internet (Internet): Internet Protocol (IP, Internet Protocol) addresses and Domain Name System. The IP address not only acts as an addressing function, but also serves as the role of identifying the host of the communication equipment. This dual function determines that when the IP address changes, not only the route changes, but also the identification of the host of the communication equipment changes. Changes in routing are acceptable, but changes in device identity can disrupt applications and connectivity. The introduction of HIP solves the binding of device identification and address. HIP requires any device to have a globally unique host identification code (HI, Host Id...

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Problems solved by technology

[0023] In view of this, the main purpose of the present invention is to provide a method and system for HAP switching, which can solve the problem of long delay in interaction between the UE and the HIP device caused by the RTT between the UE and the HAP changing from small to large after the UE moves. long question

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