Method and system for selecting access gateway and gateway selection execution node in mobile packet domain

摘要

A method and system for selecting a gateway and a gateway selection execution node in the mobile packet domain are disclosed. The method includes: encapsulating, by a gateway selection execution node upon reception of a bearer setup request transmitted from a User Equipment, an operator domain name corresponding to the bearer setup request into a DNS parse request when creating the DNS parse request, and transmitting the DNS parse request to a DNS server; parsing by the DNS server for obtaining the address of an access gateway; returning by the DNS server, to the gateway selection execution node, a DNS parse result containing the address information of the access gateway corresponding to the operator domain name; selecting by the gateway selection execution node according to the address information the access gateway corresponding to the operator domain name as the access gateway corresponding to the bearer setup request.

主权项

1. A method for selecting an access gateway in the mobile packet domain, comprising:
issuing, by a user subscription data storage node, user subscription data containing a home operator domain name feature corresponding to a user equipment to the gateway selection execution node, wherein the home operator domain name feature is a domain name owned by a home operator; appending, by a gateway selection execution node upon reception of a bearer setup request transmitted from the user equipment, the home operator domain name feature to an access point name to create an operator domain name corresponding to the bearer setup request, encapsulating the operator domain name corresponding to the bearer setup request into a Domain Name Server (DNS) parse request when creating the DNS parse request, and transmitting the DNS parse request to a DNS server; obtaining, by the DNS server based on the operator domain name in the DNS parse request, address information of an access gateway corresponding to the operator domain name, wherein the DNS server stores operator domain names and the address information of the access gateways corresponding to respective operator domain names; returning by the DNS server, to the gateway selection execution node, the address information of the access gateway corresponding to the operator domain name; and selecting, by the gateway selection execution node, the access gateway corresponding to the operator domain name as an access gateway corresponding to the bearer setup request according to the address information.