Method and system for pre-fetching network data using a pre-fetching control protocol

• US 7,688,858 B2
• Filed: 04/25/2005
• Issued: 03/30/2010
• Est. Priority Date: 12/23/2003
• Status: Active Grant

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Mane, Pravin D.
• Primary Examiner(s): PHAM, BRENDA H
• Application Number:
  US11/114,272
• Publication Number:
  US 20050232152A1
• Time in Patent Office: 1,800 Days
• Field of Search: 370/389, 370400-402, 370/216, 370/235, 370/231, 370/395.52, 370/469, 370/474, 370/392, 370/229, 370/232, 370/351, 370/473, 370/221, 370/217
• US Class Current: 370/473
• CPC Class Codes: H04L 1/06 using space diversity
• CPC Class Codes: H04L 1/187 Details of sliding window management
• CPC Class Codes: H04L 12/56 Packet switching systems
• CPC Class Codes: H04L 2001/0097 Relays

Abstract

A method and system for pre-fetching network data using a pre-fetching control protocol is described. The method includes dividing a data transmission into a first data set and a second data set at a source, transmitting the first data set to a destination and the second data set to an intermediate location, and transmitting the second data set to the destination from the intermediate location.

Claims

1. A method, comprising:

transmitting a first group of data packets from a source device to a destination device according to a first data transmission window and a second group of data packets from the source device to an intermediate device according to a second data transmission window, wherein the first group of data packets and the second group of data packets together provide a stream of data destined for the destination device, wherein the intermediate device is selected based on one or more of;

a relative position of the intermediate device in a path from the source device to the destination device, power requirements and power availability at the intermediate device, size and availability of a data buffer at the intermediate device, and a level of security and data privacy provided by the intermediate device;

receiving the first group of data packets with the destination device according to a first data reception window;

receiving the second group of data packets with the intermediate device according to a second data reception window;

transmitting the second group of data packets from the intermediate device to the destination device;

receiving the second group of data packets with the destination device according to a third data reception window;

finding a path from the source device to the destination device, a path from the source device to the intermediate device, and a path from the intermediate device to the destination device;

dividing data at the source device into the first group of data packets and the second group of data packets; and

ordering and assembling the first group of data packets and the second group of data packets.

2. The method of claim 1, wherein transmitting the second group of data packets from the intermediate device to the destination device comprises transmitting the second group of data packets according to the second data reception window.

3. The method of claim 1, wherein transmitting the second group of data packets from the intermediate device to the destination device comprises:

transferring the second group of data packets from the second data reception window to a third data transmission window; and

transmitting the second group of data packets from the third data transmission window to the third data reception window.

4. The method of claim 1, wherein the path from the source device to the intermediate device does not intersect the path from the source device to the destination device.

5. The method of claim 1, wherein the first group of data packets and the second group of data packets comprise alternate data packets in a sequential data stream.

6. The method of claim 1, wherein the first group of data packets comprises primary data packets and the second group of data packets comprises error correction data packets.

7. The method of claim 6, wherein the destination device receives the second group of data packets when the second group of data packets is needed to correct the first group of data packets.

8. The method of claim 1, wherein the second group of data packets duplicates the first group of data packets.

9. The method of claim 8, wherein the destination device receives the second group of data packets when the second group of data packets is needed to replace the first group of data packets.

10. An article of manufacture comprising:

a computer-readable storage medium encoded thereon computer-executable instructions that being executed by a computer cause the computer to perform operations comprising;

transmitting a first group of data packets from a source device to a destination device according to a first data transmission window and a second group of data packets from the source device to an intermediate device according to a second data transmission window, wherein the first group of data packets and the second group of data packets together provide a stream of data destined for the destination device, wherein the intermediate device is selected based on one or more of;

a relative position of the intermediate device in a path from the source device to the destination device, power requirements and power availability at the intermediate device, size and availability of a data buffer at the intermediate device, and a level of security and data privacy provided by the intermediate device;

receiving the first group of data packets with the destination device according to a first data reception window;

receiving the second group of data packets with the intermediate device according to a second data reception window;

transmitting the second group of data packets from the intermediate device to the destination device;

receiving the second group of data packets with the destination device according to a third data reception window;

finding a path from the source device to the destination device, a path from the source device to the intermediate device, and a path from the intermediate device to the destination device;

dividing data at the source device into the first group of data packets and the second group of data packets; and

ordering and assembling the first group of data packets and the second group of data packets.

11. An article of manufacture of claim 10, wherein transmitting the second group of data packets from the intermediate device to the destination device comprises transmitting the second group of data packets according to the second data reception window.

12. The article of manufacture of claim 10, wherein transmitting the second group of data packets from the intermediate device to the destination device comprises:

transferring the second group of data packets from the second data reception window to a third data transmission window; and

transmitting the second group of data packets from the third data transmission window to the third data reception window.

13. The article of manufacture of claim 10, wherein the machine accessible medium further includes content that causes the machine to perform operations further comprising:

dividing data at the source device into the first group of data packets and the second group of data packets; and

ordering and assembling the first group of data packets and the second group of data packets.

14. The article of manufacture of claim 13, wherein the path from the source device to the intermediate device does not intersect the path from the source device to the destination device.

15. The article of manufacture of claim 10, wherein the first group of data packets and the second group of data packets comprise alternate data packets in a sequential data stream.

16. The article of manufacture of claim 10, wherein the first group of data packets comprises primary data packets and the second group of data packets comprises error correction data packets.

17. The article of manufacture of claim 16, wherein the destination device receives the second group of data packets when the second group of data packets is needed to correct the first group of data packets.

18. The article of manufacture of claim 10, wherein the second group of data packets duplicates the first group of data packets.

19. The article of manufacture of claim 18, wherein the destination device receives the second group of data packets when the second group of data packets is needed to replace the first group of data packets.