Method for obtaining a mobile internet protocol address

• US 8,036,222 B1
• Filed: 11/05/2008
• Issued: 10/11/2011
• Est. Priority Date: 04/25/2008
• Status: Expired due to Fees

• Current Assignee: Clearwire Ip Holdings LLC (Deutsche Telekom AG)
• Original Assignee: Clear Wireless LLC (Deutsche Telekom AG)
• Inventors: Huang, Feng, Bui, Hung Viet, McGinniss, David S., Zhu, Lei
• Primary Examiner(s): Lee; Andrew
• Application Number:
  US12/264,968
• Time in Patent Office: 1,070 Days
• Field of Search: 370/352, 370/392, 370/401
• US Class Current: 370/392
• CPC Class Codes: H04L 12/66 Arrangements for connecting between networks having differing types of switching systems, e.g. gateways

Abstract

In various embodiments, methods and systems are provided for acquiring a mobile internet protocol address in a communication network. In an embodiment, an authentication node sends a mobile network internet node notification message to a mobile network internet node where the mobile network internet node notification message comprises an authentication node identifier associated with a user identifier. A mobile internet protocol request message is sent from a gateway node to the mobile network internet node. A mobile internet protocol access request message is sent from the mobile network internet node to the authentication node utilizing the authentication node identifier associated with a user identifier. A mobile internet protocol access accept message is received at the mobile network internet node transferred from the authentication node where the mobile internet protocol access accept message comprises a mobile network internet node key. The mobile internet protocol address is assigned at the mobile network internet node to a mobile station associated with the user identifier.

Claims

1. A method for acquiring a mobile internet protocol address in a communication network, the method comprising:

sending a mobile network internet node notification message transferred from an authentication node to a mobile network internet node wherein the mobile network internet node notification message comprises an authentication node identifier associated with a user identifier;

sending a mobile internet protocol request message transferred from a gateway node to the mobile network internet node;

sending a mobile internet protocol access request message transferred from the mobile network internet node to the authentication node utilizing the authentication node identifier associated with a user identifier;

receiving a mobile internet protocol access accept message at the mobile network internet node transferred from the authentication node wherein the mobile internet protocol access accept message comprises a mobile network internet node key; and

assigning the mobile internet protocol address at the mobile network internet node to a mobile station associated with the user identifier.

2. The method of claim 1 further comprising receiving a data link request message at the authentication node transferred from the mobile station wherein the data link request message comprises the user identifier and wherein the authentication node comprises the authentication node identifier.

3. The method of claim 1 further comprising generating the mobile network internet node key and a mobile network internet node identifier based upon the user identifier.

4. The method of claim 1 further comprising sending a data link accepted message to a gateway node wherein the data link accepted message comprises the mobile network internet node key and a mobile network internet node identifier.

5. The method of claim 1 further comprising establishing a data link at the gateway node for the mobile station.

6. The method of claim 1 further comprising receiving a mobile internet protocol session request message at the gateway node transferred from the mobile station utilizing a data link.

7. The method of claim 1 further comprising receiving a mobile internet protocol reply message at the gateway node transferred from the mobile network internet node wherein the mobile internet protocol reply message comprises the mobile internet protocol address.

8. The method of claim 1 further comprising sending a mobile internet protocol session accept message to the mobile station comprises transferring the mobile internet protocol session accept message from the gateway node to the mobile station.

9. The method of claim 1 further comprising:

receiving a data link request message at the authentication node transferred from the mobile station wherein the data link request message comprises the user identifier and wherein the authentication node comprises the authentication node identifier;

generating the mobile network internet node key and a mobile network internet node identifier based upon the user identifier;

sending a data link accepted message to the gateway node wherein the data link accepted message comprises the mobile network internet node key and the mobile network internet node identifier;

establishing a data link at the gateway node for the mobile station; and

receiving a mobile internet protocol session request message at the gateway node transferred from the mobile station utilizing the data link.

10. A method for acquiring a mobile internet protocol address in a communication network, the method comprising:

receiving a mobile internet protocol session request message at a gateway node transferred from a mobile station utilizing a data link;

sending a mobile network internet node notification message transferred from an authentication node to a mobile network internet node wherein the mobile network internet node notification message comprises an authentication node identifier associated with a user identifier;

sending a mobile internet protocol request message transferred from the gateway node to the mobile network internet node;

sending a mobile internet protocol access request message transferred from the mobile network internet node to the authentication node utilizing the authentication node identifier;

receiving a mobile internet protocol access accept message at the mobile network internet node transferred from the authentication node wherein the mobile internet protocol access accept message comprises the mobile network internet node key;

assigning the mobile internet protocol address at the mobile network internet node to the mobile station associated with the user identifier;

receiving a mobile internet protocol reply message at the gateway node transferred from the mobile network internet node wherein the mobile internet protocol reply message comprises the mobile internet protocol address; and

sending a mobile internet protocol session accept message transferred from the gateway node to the mobile station wherein the mobile internet protocol session accept message comprises the mobile internet protocol address.

11. The method of claim 10 further comprising receiving a data link request message at the authentication node transferred from the mobile station wherein the data link request message comprises the user identifier and wherein the authentication node comprises the authentication node identifier.

12. The method of claim 10 further comprising generating the mobile network internet node key and a mobile network internet node identifier based upon the user identifier.

13. The method of claim 10 further comprising sending a data link accepted message to a gateway node wherein the data link accepted message comprises the mobile network internet node key and a mobile network internet node identifier.

14. The method of claim 10 further comprising establishing a data link at the gateway node for the mobile station.

15. The method of claim 10 wherein the gateway node comprises an access service network gateway.

16. The method claim 10 wherein the mobile network node comprises a mobile internet node home agent.

17. The method of claim 10 wherein the authentication node comprises an authentication, authorization and accounting node.