System and method of performing domain name server pre-fetching

• US 8,601,052 B2
• Filed: 10/04/2010
• Issued: 12/03/2013
• Est. Priority Date: 10/04/2010
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Mir, Idris, Vijayakumar, Rajiv K., Jim, Samson, Bapst, Mark
• Primary Examiner(s): Chan, Wing F
• Assistant Examiner(s): KRISHNAN, RAJESHWARI
• Application Number:
  US12/897,553
• Publication Number:
  US 20120084343A1
• Time in Patent Office: 1,156 Days
• Field of Search: 709/203, 709217-219, 709/245, 370/252, 370/349, 370/465, 455/414.1, 715/784, 725/52, 345/418, 345/660, 345/684
• US Class Current: 709/203
• CPC Class Codes: G06F 40/134 Hyperlinking
• CPC Class Codes: H04L 61/4511 using domain name system [DNS]
• CPC Class Codes: H04L 67/289 Intermediate processing functionally located close to the data consumer application, e.g. in same machine, in same home or in same sub-network
• CPC Class Codes: H04L 67/5681 Pre-fetching or pre-delivering data based on network characteristics
• CPC Class Codes: H04L 69/329 in the application layer [OSI layer 7]

Abstract

A method and system for performing domain name service (DNS) pre-fetching, content pre-fetching, or a combination thereof, are disclosed for a wireless portable computing device (PCD). The system and method may include rendering a web page on a display screen of the PCD and performing a DNS pre-fetch for any visible links within the web page. Further, the method may include determining whether a screen changing operation (i.e., a scrolling operation) is being performed and placing one or more DNS pre-fetch tasks in a queue for each link that is displayed on the display screen when the screen changing operation is performed. The method and system may reduce wait times for a wireless PCD when it is rendering webpages on its display screen.

Claims

1. A method for performing Domain Name Server (DNS) pre-fetching of information for a portable computing device, the method comprising:

rendering a web page on a display screen of the portable computing device;

detecting links on the rendered web page;

determining whether a screen changing operation is being performed, wherein the screen changing operation is selected from the group consisting of scrolling, panning, zooming, and combinations thereof;

performing a DNS pre-fetch for any visible links within the web page;

placing one or more DNS pre-fetch tasks in a queue within the portable computing device for each visible link on the display screen when the screen changing operation is performed;

determining if the screen changing operation is stopped; and

executing the DNS pre-fetch task for visible links in the web page when the screen changing operation is stopped.

2. The method of claim 1, further comprising:

determining if a wireless channel exists.

3. The method of claim 1, wherein the queue is a last-in first-out queue.

4. The method of claim 3, further comprising:

clearing the queue in response to a user navigating away from the webpage.

5. The method of claim 1, further comprising:

determining a likelihood that a user will download one or more websites by monitoring user habits and comparing habits to current time; and

determining a pattern with respect to websites that are routinely accessed within a predetermined time from the current time.

6. The method of claim 5, further comprising:

determining whether sufficient processing resources, including CPU, memory and bus bandwidth are available to support the processing of web content with a resource manager.

7. The method of claim 6, further comprising:

determining whether the portable computing device is connected to a charger or if sufficient battery charge is available, and if the processing resources are sufficient for processing web content.

8. The method of claim 7, further comprising:

determining whether an average wireless channel quality satisfies a condition when

the portable computing device is connected to the charger or has sufficient battery charge available; and

performing content or DNS pre-fetching when the average wireless channel quality satisfies the condition.

9. A portable computing device for performing Domain Name Server (DNS) pre-fetching of information, comprising:

means for rendering a web page on a display screen of the portable computing device;

means for detecting links on the rendered web page;

means for determining whether a screen changing operation is performed, wherein the screen changing operation is selected from the group consisting of scrolling, panning, zooming, and combinations thereof;

means for performing a DNS pre-fetch for any visible links within the web page;

means for placing one or more DNS pre-fetch tasks in a queue for each visible link that on the display screen when the screen changing operation is performed;

means for determining if the screen changing operation is stopped; and

means for executing the DNS pre-fetch task for each visible link in the web page when the screen changing operation is stopped.

10. The portable computing device of claim 9, further comprising:

means for determining if a wireless channel exists.

11. The portable computing device of claim 9, wherein the queue is a last in first out queue.

12. The portable computing device of claim 11, further comprising:

means for clearing the queue in response to a user navigating away from the webpage.

13. The portable computing device of claim 9, further comprising:

means for determining a likelihood that a user will download one or more websites by monitoring user habits and comparing habits to current time; and

means for determining a pattern with respect to websites that are routinely accessed within a predetermined time from the current time.

14. The portable computing device of claim 13, further comprising:

means for determining whether sufficient processing resources, including CPU, memory and bus bandwidth are available to support the processing of web content with a resource manager.

15. The portable computing device of claim 14, further comprising:

means for determining whether the portable computing device is connected to a charger or if sufficient battery charge is available, and if the processing resources are sufficient for processing web content.

16. The portable computing device of claim 15, further comprising:

means for determining whether an average wireless channel quality satisfies a condition when the portable computing device is connected to the charger or has sufficient battery charge available; and

means for performing content or DNS pre-fetching when the average wireless channel quality satisfies the condition.

17. A portable computing device for performing Domain Name Server (DNS) pre-fetching of information, comprising:

a memory;

a processor accessible to the memory, wherein the processor is configured with processor-executable instructions to perform operations comprising;

rendering a web page on a display screen of the portable computing device;

detecting links on the rendered web page;

determining whether a screen changing operation is performed, wherein the screen changing operation is selected from the group consisting of scrolling, panning, zooming, and combinations thereof;

performing a DNS pre-fetch for any visible links within the web page;

placing one or more DNS pre-fetch tasks in a queue within the portable computing device for each visible link on the display screen when the screen changing operation is performed;

determining if the screen changing operation is stopped; and

executing the DNS pre-fetch task for visible links in the web page when the screen changing operation is stopped.

18. The portable computing device of claim 17, wherein the processor is configured with processor-executable instructions to perform operations further comprising:

determining if a wireless channel exists.

19. The portable computing device of claim 17, wherein the queue is a last in first out queue.

20. The portable computing device of claim 19, wherein the processor is configured with processor-executable instructions to perform operations further comprising:

clearing the queue in response to a user navigating away from the webpage.

21. The portable computing device of claim 17, wherein the processor is configured with processor-executable instructions to perform operations further comprising:

determining a likelihood that a user will download one or more websites, by monitoring user habits and comparing habits to current time; and

determining a pattern with respect to websites that are routinely accessed within a predetermined time from the current time.

22. The portable computing device of claim 21, wherein the processor is configured with processor-executable instructions to perform operations further comprising:

determining whether sufficient processing resources, including CPU, memory and bus bandwidth are available to support the processing of web content with a resource manager.

23. The portable computing device of claim 22, wherein the processor is configured with processor-executable instructions to perform operations further comprising:

determining whether the portable computing device is connected to a charger or if sufficient battery charge is available, and if the processing resources are

sufficient for processing web content.

24. The portable computing device of claim 23, wherein the processor is configured with processor-executable instructions to perform operations further comprising:

determining whether an average wireless channel quality satisfies a condition when the portable computing device is connected to the charger or has sufficient battery charge available; and

performing content or DNS pre-fetching when the average wireless channel quality satisfies the condition.

25. A non-transitory computer readable storage medium having stored thereon processor-executable instructions configured to cause a processor of a portable computing device to perform Domain Name Server (DNS) pre-fetching operations comprising:

rendering a web page on a display screen of the portable computing device;

detecting links on the rendered web page;

determining whether a screen changing operation is being performed, wherein the screen changing operation is selected from the group consisting of scrolling, panning, zooming, and combinations thereof;

performing a DNS pre-fetch for any visible links within the web page;

placing one or more DNS pre-fetch tasks in a queue within the portable computing device for each visible link on the display screen when the screen changing operation is performed;

determining if the screen changing operation is stopped; and

executing the DNS pre-fetch task for visible links in the web page when the screen changing operation is stopped.

26. The non-transitory computer readable storage medium of claim 25, wherein the stored processor-executable instructions are configured to cause the processor of the mobile computing device to perform operations further comprising:

determining if a wireless channel exists.

27. The non-transitory computer readable storage medium of claim 25, wherein the queue is a last in first out queue.

28. The non-transitory computer readable storage medium of claim 27, wherein the stored processor-executable instructions are configured to cause the processor of the mobile computing device to perform operations further comprising:

clearing the queue in response to a user navigating away from the webpage.

29. The non-transitory computer readable storage medium of claim 25, wherein the stored processor-executable instructions are configured to cause the processor of the mobile computing device to perform operations further comprising:

determining a likelihood that a user will download one or more websites by monitoring user habits and comparing habits to current time; and

determining a pattern with respect to websites that are routinely accessed within a predetermined time from the current time.

30. The non-transitory computer readable storage medium of claim 29, wherein the stored processor-executable instructions are configured to cause the processor of the mobile computing device to perform operations further comprising:

determining whether sufficient processing resources, including CPU, memory and bus bandwidth are available to support the processing of web content with a resource manager.

31. The non-transitory computer readable storage medium of claim 30, wherein the stored processor-executable instructions are configured to cause the processor of the mobile computing device to perform operations further comprising:

determining whether the portable computing device is connected to a charger or if sufficient battery charge is available, and if the processing resources are sufficient for processing web content.

32. The non-transitory computer readable storage medium of claim 31, wherein the stored processor-executable instructions are configured to cause the processor of the mobile computing device to perform operations further comprising:

determining whether an average wireless channel quality satisfies a condition when the portable computing device is connected to the charger or has sufficient battery charge available; and

performing content or DNS pre-fetching when the average wireless channel quality satisfies the condition.