Mobility management method and entity

Abstract

The invention provides a mobile management method and entity applied to an LET (long term evolution) network of MME (mobile management entity) centralized deployment. The method includes: configuring a corresponding relation, between location information of UE (user equipment) and an IP (internet protocol) address of an DNS (domain name system) server in the area of the UE, on the MME; receiving a mobile management message, carrying the location information of the UE, sent from the UE by the MME, and searching the IP address of the matched DNS server through the MME according to the location information of the UE; creating an FQDN (fully qualified domain name) through the MME according to related information of the UE, sending an N-record query request message, carrying the FQDN, to the matched DNS server, selecting an S-GW (serving-gateway) or P-GW (packet data network gateway) according to an S-GW or P-GW list and local rules returned by the DNS server, and initiating an A-record query request to the DNS server so as to acquire an IP address of the selected S-GW or P-GW; initiating a mobile management process to the selected S-GW or P-GW through the MME. Mobile management in the LET network of the MME centralized deployment is realized.

Description

technical field [0001] The present application relates to the field of wireless technology, in particular to a mobility management method and entity. Background technique [0002] In order to enhance the competitiveness of future networks, the 3rd Generation Partnership Project (3GPP) launched the Long Term Evolution (LTE, Long Term Evolution) and System Architecture Evolution (SAE, System Architecture Evolution) in the R8 phase. Standard formulation work for important projects. In terms of the core network, a new pure packet domain core network architecture has been introduced. [0003] figure 1 A schematic diagram of the system architecture of SAE introduced by 3GPP, such as figure 1 As shown, its main network elements are as follows: [0004] User equipment (UE, User Equipment); [0005] Evolved Universal Terrestrial RadioAccess Network (E-UTRAN, Evolved Universal Terrestrial RadioAccess Network): access network, which mainly implements radio resource management func...

AI Technical Summary

Problems solved by technology

How MME finds the DNS server of the corresponding province, there is currently no clear solution, which makes it impossible to implement mobility management in the LTE network where MME is deployed centrally

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