METHOD FOR IP MANAGEMENT CONNECTION CONTROL IN WIRELESS COMMUNICATION SYSTEM

• US 20080130537A1
• Filed: 11/23/2007
• Published: 06/05/2008
• Est. Priority Date: 12/01/2006
• Status: Active Grant

• Current Assignee: Electronics and Telecommunications Research Institute, Samsung Electronics Co. Ltd. (Samsung Group)
• Original Assignee: Electronics and Telecommunications Research Institute, Samsung Electronics Co. Ltd. (Samsung Group)
• Inventors: KIM, Jeong-Ha, KIM, Kyung-Soo
• Granted Patent: US 7,969,960 B2
• Time in Patent Office: Days
• US Class Current: 370/310
• CPC Class Codes: H04L 61/5007 Internet protocol [IP] addresses
• CPC Class Codes: H04L 63/08 for authentication of entities cryptographic mechanisms or cryptographic arrangements for entity authentication H04L9/32
• CPC Class Codes: H04W 12/062 Pre-authentication
• CPC Class Codes: H04W 48/08 Access restriction or access information delivery, e.g. discovery data delivery signalling during connection H04W76/00
• CPC Class Codes: H04W 76/10 Connection setup
• CPC Class Codes: H04W 80/04 Network layer protocols, e.g. mobile IP [Internet Protocol]
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

The present invention relates to an Internet protocol (IP) management connection control method in a mobile communication system. In the method, a first traffic connection between an access point and a packet access router is established, uplink and downlink second traffic connections between the access point and an access terminal are established, and an IP management message is transmitted through the first traffic connection and the second traffic connection.

Claims

1. An Internet protocol (IP) management connection controlling method in an access point of a mobile communication system, the IP management connection controlling method comprising:

establishing a first traffic connection to a packet access router;

establishing uplink and downlink second traffic connections to an access terminal; and

transmitting an IP management message through the first traffic connection and the second traffic connection.

2. The IP management connection controlling method of claim 1, wherein the transmitting of the IP management message comprises:

receiving an IP direct transfer command message and unpacking the IP direct transfer command message;

identifying IP address allocation through information included in a payload of the IP direct transfer command message;

when identifying the IP address allocation, forming a traffic data packet as a downlink transport connection identifier message, and transmitting the downlink transport connection identifier message to the access terminal;

canceling a response timer; and

changing a mode to a registration mode for receiving traffic connection establishment of the access terminal in which the IP connection is completed.

3. The IP management connection controlling method of claim 1, wherein the transmitting of the IP management message comprises:

receiving an IP direct transfer command message and unpacking the IP direct transfer command message;

identifying IP address allocation through information included in a payload of the IP direct transfer command message; and

when identifying no IP address allocation, forming a traffic data packet as a downlink transport connection identifier message, transmitting the downlink transport connection identifier message to the access terminal, and maintaining an IP allocation waiting mode.

4. The IP management connection controlling method of claim 1, wherein the transmitting of the IP management message comprises:

receiving a traffic data packet through an uplink transport connection identifier message;

unpacking the uplink transport connection identifier message; and

forming an IP direct transfer command message having the traffic data packet as a payload, and transmitting the IP direct transfer command message to the packet access router.

5. The IP management connection controlling method of claim 1, wherein the establishing of the first traffic connection comprises:

receiving a first registration response message from the packet access router;

checking a registration result for the access terminal from the first registration response message, and transmitting a second registration response message to the access terminal when the registration result is a success;

allocating a traffic parameter for uplink and downlink IP management connections to the access terminal;

establishing an uplink transport connection identifier and an downlink transport connection identifier for traffic transmission; and

transmitting a first dynamic service addition request message including the traffic parameter, the uplink transport connection identifier, and the downlink transport connection identifier to the packet access router.

6. The IP management connection controlling method of claim 5, further comprising:

receiving a first dynamic service addition response message from the packet access route;

checking the first dynamic service addition response message to identify connection to the packet access router;

when the connection to the packet access router is successfully performed, allocating uplink and downlink service flow identifiers; and

transmitting a second dynamic service addition request message including the uplink and downlink service flow identifiers, the uplink transport connection identifier, the downlink transport connection identifier, and the traffic parameter.

7. The IP management connection controlling method of claim 5, further comprising:

receiving a first dynamic service addition response message from the packet access route;

checking the first dynamic service addition response message to identify connection to the packet access router;

when the connection to the packet access router has failed, transmitting a dynamic service addition acknowledgement message indicating a failure of the connection to the packet access router to the packet access router; and

deregistering the access terminal.

8. The IP management connection controlling method of claim 1, wherein the establishing of the first traffic connection comprises:

receiving a first registration response message from the packet access router;

identifying a registration result for the access terminal from the first registration response message;

transmitting a second registration response message indicating a failure of the registration to the access terminal; and

deregistering the access terminal.

9. The IP management connection controlling method of claim 1, wherein the establishing of the second traffic connection comprises:

receiving a dynamic service addition response message from the access terminal;

checking the dynamic service addition response message to identify connection to the access terminal;

when the connection to the access terminal is successfully performed, transmitting a first dynamic service addition acknowledgement message including an identification code informing of success of the connection to the access terminal, and transmitting a second dynamic service addition acknowledgement message including the success of the connection to the packet access router; and

changing a mode to an IP address allocation waiting mode.

10. The IP management connection controlling method of claim 1, wherein the establishing of the second traffic connection comprises:

receiving a dynamic service addition response message from the access terminal;

checking the dynamic service addition response message to identify connection to the access terminal;

when the connection to the access terminal has failed, transmitting a dynamic service addition acknowledgement message including an identification code informing of a failure of the connection to the access terminal; and

deregistering the access terminal.

11. An Internet protocol (IP) management connection control method of an access point of a mobile communication system, the IP management connection controlling method comprising:

establishing initial ranging of an access terminal;

establishing basic transport capability of the access terminal;

authenticating the access terminal and exchanging an authentication key;

registering the access terminal;

establishing an uplink traffic connection and a downlink traffic connection to the access terminal; and

transmitting an IP management message through the uplink traffic connection and the downlink traffic connection, and allocating an IP address.

12. The IP management connection controlling method of claim 11, wherein the establishing of the uplink traffic connection and the downlink traffic connection to the access terminal comprises:

establishing traffic connection to a packet access router; and

establishing the uplink traffic connection and the downlink traffic connection to the access terminal.

13. The IP management connection controlling method of claim 11, wherein, in the allocating of the IP address, the IP management message transmitted from the access terminal to the packet access router is transmitted as an uplink transport connection identifier message, and the IP management message transmitted from the packet access router to the access terminal is transmitted as a downlink transport connection identifier message.