METHOD AND APPARATUS FOR CHANNEL OPTIMIZATION DURING POINT-TO-POINT PROTOCOL (PPP) SESSION REQUESTS

• US 20070217365A1
• Filed: 02/23/2007
• Published: 09/20/2007
• Est. Priority Date: 01/04/2000
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Rezaiifar, Ramin, Abrol, Nischal, Hsu, Raymond
• Granted Patent: US 8,363,616 B2
• Time in Patent Office: Days
• US Class Current: 370/331
• CPC Class Codes: H04W 76/20 Manipulation of established connections
• CPC Class Codes: H04W 8/12 between location registers or mobility servers
• CPC Class Codes: H04W 80/04 Network layer protocols, e.g. mobile IP [Internet Protocol]

Abstract

A method and apparatus for requesting PPP instances from a packet data services network includes a mobile station configured to send an origination message to a packet data service node (PDSN) at which it has arrived upon leaving the vicinity of another PDSN. The message informs the new PDSN of the new location of the mobile station and indicates both the number of dormant PPP instances associated with the mobile station and a service reference identifier for each such PPP instance. A flag within the message may be used to indicate whether the PPP instances are dormant (i.e., whether the mobile station is engaged in a call). Communications channel resources of packet data services nodes are optimized by reducing the information included in messages from the Packet Control Function network element to the Packet Data Service Node network element, and by reducing the use of Mobile Internet Protocol agent advertisement.

Claims

1. A method of simplifying Packet Control Function network element functionality when a mobile station moves from a first infrastructure element of the packet data services network to a second infrastructure element of the packet data services network, the method comprising the step of:

maintaining a reduced entry PPP connection table.

2. The method of claim 1, wherein said reduced entries do not include Service Request Identifiers.

3. The mobile station of claim 1, wherein the dormant network connections comprise point-to-point protocol connections.

4. The mobile station of claim 1, wherein the first and second infrastructure elements comprise packet data service nodes.

5. The mobile station of claim 1, wherein the identifiers are not comprised of service reference identifiers.

6. The mobile station of claim 1, wherein the message comprises an origination message including an indicator that the dormant network connections are dormant.

7. The mobile station of claim 1, wherein the message comprises packet zone identification information.

8. A packet data services node configured to maintain Point to Point Protocol connection tables of dormant network connections associated with a mobile station when the mobile station moves from a first infrastructure element of a packet data services network to a second infrastructure element of the packet data services network, the packet data services node comprising:

a radio-access-network-PDSN channel interface;

a processor coupled to the radio-access-network-PDSN channel interface; and

a processor-readable medium accessible by the processor and containing a set of instructions executable by the processor to update the dormant network connection information associated with the mobile station.

9. The packet data services node of claim 8, wherein the dormant network connection information associated with the mobile station maintained does not include service reference identifiers.

10. The mobile station of claim 8, wherein the first and second infrastructure elements comprise packet data service nodes.