METHOD OF PROVIDING SEAMLESS QOS GUARANTEES IN INTERNET PROTOCOL (IP) NETWORK WHEN IP-BASED MOBILITY SERVICE IS PROVIDED

• US 20090154422A1
• Filed: 09/03/2008
• Published: 06/18/2009
• Est. Priority Date: 12/18/2007
• Status: Abandoned Application

• Current Assignee: Electronics and Telecommunications Research Institute
• Original Assignee: Electronics and Telecommunications Research Institute
• Inventors: Park, No-ik, Lee, Soon-seok
• Application Number:
  US12/203,558
• Publication Number:
  US 20090154422A1
• Time in Patent Office: Days
• US Class Current: 370/331
• CPC Class Codes: H04W 36/0066 of control information between different types of networks in order to establish a new radio link in the target network
• CPC Class Codes: H04W 36/26 by agreed or negotiated communication parameters

Abstract

Provided is a method of providing an Internet Protocol (IP)-based mobility service, particularly, a method of providing seamless quality of service (QoS) guarantees when an IP-based mobile service is provided. The seamless QoS management method includes: a method of providing seamless QoS guarantees when an Internet Protocol (IP)-based mobility service is provided, including: determining whether a terminal is newly registered in a network connecting unit; and providing QoS information of the newly registered terminal to the network connecting unit. Therefore, a user can successively receive a Service Level Agreement (SLA)-based service for which he or she subscribes, while moving to other places.

Claims

1. A method of providing seamless quality of service (QoS) guarantees, which is performed by a network control unit to control a network connecting unit for connecting a terminal to a service network, when an Internet Protocol (IP)-based mobility service is provided, comprising:

when a terminal performs handover, recognizing that a network connecting unit in which the terminal has been registered is changed to a different network connecting unit; and

providing QoS information of the terminal to the different network connecting unit.

2. The method of claim 1, wherein the recognizing comprises recognizing that the network connecting unit in which the terminal has been registered is changed to the different network connecting unit, by acquiring a transport IP address of the terminal and the QoS information of the terminal, from an IP mobility control unit.

3. The method of claim 2, wherein the providing of the QoS information comprises transmitting the QoS information of the terminal to the different network connecting unit using the transport IP address of the terminal.

4. The method of claim 1, wherein the recognizing comprises:

determining whether the terminal is newly registered, by acquiring IP address information of the terminal;

requesting the QoS information of the terminal using the IP address information of the terminal; and

acquiring the QoS information of the terminal in response to the request.

5. The method of claim 4, wherein the IP address information includes a permanent IP address and a transport IP address of the terminal.

6. The method of claim 4, wherein the requesting of the QoS information of the terminal comprises, in an IP mobility control unit, receiving a handover notification from the terminal, and transmitting the IP address information of the terminal which has performed the handover to the network control unit.

7. The method of claim 4, wherein the requesting of the QoS information of the terminal comprises, in the network control unit, requesting the QoS information of the terminal to a policy server.

8. The method of claim 3, further comprising:

receiving a request for acquiring user QoS information including a permanent IP address of the terminal from a network control unit;

extracting the user QoS information of the terminal from a predetermined database with reference to the permanent IP address of the terminal; and

providing the user QoS information to the network control unit.

9. The method of claim 3, further comprising:

in the network connecting unit, receiving the QoS information of the terminal; and

transmitting a data packet to the terminal on the basis of the QoS information of the terminal.

10. The method of claim 4, further comprising:

in the network connecting unit, receiving the QoS information of the terminal; and

transmitting a data packet to the terminal using the QoS information of the terminal.