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Mobile terminated communication method and related devices

  • US 9,906,947 B2
  • Filed: 10/12/2010
  • Issued: 02/27/2018
  • Est. Priority Date: 10/12/2009
  • Status: Active Grant
First Claim
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1. A method for processing information associated with IP addresses in a mobile communication system, the method comprising:

  • receiving, by a domain name system (DNS) entity, information on a private IP address of a machine type communication (MTC) device located in a private IP network and a public IP address of a network address translation (NAT) entity from a home Subscriber server (HSS), the private IP address being assigned when the MTC device performs an Evolved Packet System (EPS) attach procedure;

    associating, by the DNS entity, the private IP address and the public IP address with a host name which is a fully qualified domain name (FQDN) of the MTC device;

    receiving, by the DNS entity, a query message including the host name from an MTC server that attempts to send a mobile terminated message to the MTC device and is located in a public IP network; and

    in response to the query message, transmitting, by the DNS entity, a query response message including the private IP address and the public IP address to the MTC server to enable the MTC server to deliver an encapsulated packet, which includes an outer header being set based on the public IP address and an inner header being set based on the private IP address, to the NAT entity.

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