System and method for resolving contention among applications requiring data connections between a mobile communications device and a wireless network

• US 8,189,611 B2
• Filed: 12/02/2008
• Issued: 05/29/2012
• Est. Priority Date: 11/04/2005
• Status: Active Grant
• 

• Current Assignee: 3G Licensing S.A. (Fineur International S.A.)
• Original Assignee: Research In Motion Limited (Blackberry Limited)
• Inventors: Liang, Kenneth, Hassan, Mahmud-Ul, Ho, Colin
• Primary Examiner(s): Taylor, Barry W
• Application Number:
  US12/326,446
• Publication Number:
  US 20090080457A1
• Time in Patent Office: 1,274 Days
• Field of Search: 370/462, 455/452.1, 455/452.2, 455/435.2, 455/435.3
• US Class Current: 370/462
• CPC Class Codes: H04L 67/14 Session management for real-time applications in data packet communications networks H04L65/1066
• CPC Class Codes: H04L 67/143 Termination or inactivation of sessions, e.g. event-controlled end of session
• CPC Class Codes: H04L 69/14 Multichannel or multilink protocols
• CPC Class Codes: H04W 76/36 for reassigning the resources associated with the released connections

Abstract

A mobile communications device (30) includes a wireless transceiver (34) operable to conduct at least two data connections between the mobile communications device (30) and a wireless network (12) wherein each of the data connections is associated with a connected application operating on the mobile communications device. A processor (32) is coupled to the wireless transceiver (34). The processor (32) is operable to process a request for a data connection for an unconnected application operable on the mobile communications device (30), to release one of the data connections associated with one of the connected applications and to establish a data connection between the mobile communications device (30) and the wireless network (12) for the unconnected application. A contention manager (86) is operable to select the connected application to be released based upon a comparison of a contention parameter associated with each of the connected applications.

Claims

1. A method of managing contention on a mobile communications device when a new wireless data connection between the mobile communications device and a wireless network is requested, the method comprising:

determining if a further wireless data connection can be effected between the mobile communications device and a wireless network; and

selecting an application to release its existing data connection if a further wireless data connection cannot be effected between the mobile communications device and a wireless network, wherein selecting the application to release its existing data connection comprises prioritizing the existing wireless data connections.

2. The method as recited in claim 1 wherein selecting the application to release its existing data connection comprises performing contention parameter analysis.

3. The method as recited in claim 2 wherein performing contention parameter analysis comprises analyzing a plurality of contention parameters.

4. The method as recited in claim 2 wherein performing contention parameter analysis comprises analyzing a hierarchy of contention parameters.

5. The method as recited in claim 1, wherein selecting the application to release its existing data connection comprises comparing at least one of data traffic on each data connection associated with a corresponding application, a duration of each data connection and a priority of the corresponding application associated with each data connection.

6. The method as recited in claim 1, further comprising prompting the user to confirm a selected application prior to releasing its existing data connection.

7. The method as recited in claim 1, further comprising releasing the existing data connection of the selected application and establishing a new data connection corresponding to another application.

8. The method as recited in claim 1, wherein each data connection comprises a packet data protocol context.

9. The method as recited in claim 1, wherein selecting the application to release its existing data connection comprises comparing a duration of connections associated with the respective data connections of the connected applications.

10. A mobile communications device comprising:

a wireless transceiver operable to conduct a number of wireless data connections between the mobile communications device and a wireless network;

a processor coupled to the wireless transceiver, the processor processing requests for new wireless data connections for a plurality of applications, releasing existing data connections and establishing new wireless data connections between the mobile communications device and a wireless network; and

a contention manager for selecting an existing data connection to be released, wherein selecting the application to release its existing data connection comprises prioritizing the existing wireless data connections.

11. The mobile communications device as recited in claim 10 wherein the contention manager is disposed in operable connection with at least one of a transport stack, a radio layer and an operating system of the mobile communications device.

12. The mobile communications device as recited in claim 10, wherein the plurality of applications comprises at least one of email, video mail, a messenger service, a browser, a calendar and a scheduling application.

13. The mobile communications device as recited in claim 10, wherein the contention manager is operable to prompt a user to confirm an application selected for releasing its existing data connection prior to releasing the existing data connection.

14. The mobile communications device as recited in claim 10, wherein the contention manager is operable to automatically release a selected application'"'"'s existing data connection and to establish a new data connection associated with another application.

15. The mobile communications device as recited in claim 10, wherein the contention manager is operable to analyze at least one of data traffic on each data connection, a duration of each data connection and a priority of an application associated with each data connection.

16. The mobile communications device as recited in claim 10, wherein selecting the application to release its existing data connection comprises comparing a duration of connections associated with the respective data connections of the connected applications.

17. The mobile communications device as recited in claim 10, wherein each data connection comprises a packet data protocol context.

18. A computer program product comprising:

a storage medium; and

computer instructions stored in the storage medium and executable by a processor of a mobile communications device operable to process requests for new wireless data connections between the mobile communications device and a wireless network for a plurality of applications, releasing existing data connections and establishing new wireless data connections between the mobile communications device and a wireless network, the computer instructions operable to determine, responsive to receiving a request for a new application, if a further wireless data connection can be effected between the mobile communications device and a wireless network and selecting an application to release its existing data connection if a further wireless data connection cannot be effected between the mobile communications device and a wireless network, wherein selecting the application to release its existing data connection comprises prioritizing the existing wireless data connections.

19. The computer program product as recited in claim 18 wherein the computer instructions operable to select an application to release its data connection include computer instructions to perform contention parameter analysis.

20. The computer program product as recited in claim 19 wherein performing contention parameter analysis comprises at least one of analyzing a plurality of contention parameters and analyzing a hierarchy of contention parameters.

21. The computer program product as recited in claim 18, wherein the computer instructions further include computer instructions operable to analyze at least one of data traffic on each data connection, a duration of each data connection and a priority of an application associated with each data connection.

22. The computer program product as recited in claim 18, wherein computer instructions are further operable to prompt a user to confirm a selected application prior to releasing its existing data connection.

23. The computer program product as recited in claim 18, wherein the computer instructions are further operable to release the existing data connection of the selected application and to establish a new data connection for the new application.

24. The computer program product as recited in claim 18, wherein each data connection comprises a packet data protocol context.

25. The computer program product as recited in claim 18, wherein selecting the application to release its existing data connection comprises comparing a duration of connections associated with the data connections of the connected applications.