HIP (Host Identity Protocol) based method and system for achieving user mobility

Abstract

The invention relates to a HIP (Host Identity Protocol) based method for realizing user mobility, comprising the following steps of: a registration step: the host equipment initiates a registration process to a set server, and the set server stores the mapping relation between user identification of a host equipment user and the host identification and the location identification of the host equipment; and a connection establishment step: the host equipment queries the set server according to the user identification of an opposite end user and establishes connection with the host equipment of the opposite end user by adopting the HIP according to a query result. The HIP based method and system for realizing the user mobility can realize the mobility taking the user as a centre.

Description

technical field [0001] The invention relates to host identity protocol, especially a method and system for realizing user mobility based on host identity protocol. Background technique [0002] The architecture of HIP (Host Identity Protocol, Host Identity Protocol) is described in RFC4423, and specific protocol specifications are defined in RFC5201-5206. HIP is a protocol between the network layer and the transport layer in the TCP / IP (Transmission Control Protocol / Internet Protocol) reference model. By introducing a host identity identification layer, the identity and location of the host or terminal device are identified. Separation can realize the mobility and multi-homing of host nodes. The host identity in the HIP protocol is a logical address. When the host moves, the IP address changes constantly, but the host identity remains unchanged. The HIP terminal must register its own IP address and host ID binding with RVS (rendezvous set server) relation. When the applic...

AI Technical Summary

Problems solved by technology

However, the identity of HIP only refers to the identity of the host, and an identity is bound to a host (terminal). In the communication network, the user identity is actually the center. A user can have multiple hosts, and a host can have multiple hosts. Location (IP address), mobility, and multi-homing are not only for the host (terminal) device, but more for the user, and the single-layer identification of HIP cannot support this requirement

If user identification management is implemented at the application layer, user mobility cannot be transparent to applications, and it is not conducive to unified management of user IDs (identity identification). For example, IMS (IP Multimedia Subsystem, IP Multimedia Subsystem) adopts the application layer protocol SIP (Session Initiation Protocol, Session Initiation Protocol) to implement user mobility management, non-SIP protocol applications cannot obtain the user mobility management features provided by IMS

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