METHOD, SYSTEM, CLIENT AND SERVER FOR IMPLEMENTING DATA SYNC

• US 20080104277A1
• Filed: 08/30/2007
• Published: 05/01/2008
• Est. Priority Date: 10/27/2005
• Status: Active Grant

• Current Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Inventors: TIAN, Linyi
• Granted Patent: US 8,015,319 B2
• Time in Patent Office: Days
• US Class Current: 709/248
• CPC Class Codes: H04L 61/457 containing identifiers of data entities on a computer, e.g. file names
• CPC Class Codes: H04L 61/4594 Address books, i.e. directories containing contact information about correspondents telephone directories in user terminals H04M1/27453
• CPC Class Codes: H04L 67/1095 Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes

Abstract

This invention discloses a method for synchronizing a plurality of devices, including: obtaining, by a first device, an extended address of an informational node of a plurality of informational nodes of a second device, the plurality of informational nodes arranged in a hierarchical tree structure; and utilizing the extended address to locate the informational node amongst the tree structure to enable synchronization of the informational node; wherein the extended address includes a hierarchical location of the informational node. This invention further discloses a system, client and server for data sync, and the folder-level data sync can be implemented by using the method of this invention.

Claims

1. A method of synchronizing a plurality of devices, comprising:

obtaining, by a first device, an extended address of an informational node of a plurality of informational nodes of a second device, said plurality of informational nodes arranged in a hierarchical tree structure; and

utilizing said extended address to locate said informational node amongst the tree structure to enable synchronization of said informational node;

wherein said extended address includes a hierarchical location of said informational node.

2. The method of claim 1, further comprising:

synchronizing said informational node.

3. The method of claim 1, wherein said obtaining said extended address comprises:

receiving, by said first device, a description of said hierarchical tree structure from said second device; and

determining, by said first device, said extended address based on said description.

4. The method of claim 1, wherein said obtaining said extended address comprises:

receiving, by said first device, said extended address from said second device.

5. The method of claim 4, wherein said obtaining said extended address comprises:

sending a command, by said first device, to retrieve said extended address from said second device.

6. The method of claim 1, wherein said obtaining said extended address comprises:

designating, by said first device, an extended address.

7. The method of claim 6, wherein said obtaining said extended address comprises:

creating, if said extended address does not exist, a node at said extended address by said second device.

8. The method of claim 1, wherein said obtaining said extended address comprises:

determining, by said first device, said extended address based on information input by a user.

9. The method of claim 1, wherein said obtaining said extended address comprises:

determining by reference to a pre-designated address.

10. The method of claim 2, wherein said synchronizing said informational node is initiated by transmitting a synchronization command to said second device.

11. The method of claim 10, wherein a synchronization alert comprises said extended address.

12. The method of claim 10, wherein said synchronization command indicates that said synchronization is a recursive synchronization.

13. The method of claim 12, wherein said synchronization command is transmitted to said second device via a second synchronization command of a plurality of synchronization commands.

14. The method of claim 11, wherein if a plurality of informational nodes are to be synchronized, said synchronization alert comprises a respective plurality of extended addresses.

15. The method of claim 10, wherein said synchronizing is a modification selected from the group consisting of Add, Replace, Delete, and Move.

16. The method of claim 15, wherein said Delete modification is selected from the group consisting of Permanent Deletion and Non-Permanent Deletion.

17. The method of claim 1, wherein said informational node is a target selected from the group consisting of a folder, a file, an email, and data.

18. The method of claim 1, wherein said extended address utilizes a Uniform Resource Identifier (URI).

19. The method of claim 18, wherein said extended address utilizes a Unique Identifier (UID).

20. The method of claim 17, wherein said extended address indicates a filter condition.

21. A system of synchronizing a plurality of devices, comprising:

a first device, capable of communicating with a second device, wherein

said second device stores in a hierarchical tree structure a plurality of informational nodes;

said first device obtains an extended address of a node of said plurality of nodes of said second device;

said extended address is extended with a hierarchical location of said informational node; and

said extended address is capable of being used to locate a specific informational node amongst the tree structure to enable synchronization of said informational node.

22. The system of claim 21, wherein said first device obtains said extended address by receiving, from said second device, a description of said hierarchical tree structure and determining said extended address based on said description.

23. The system of claim 21, wherein said first device obtains said extended address by receiving, from said second device, a said extended address.

24. The system of claim 21, wherein said first device obtains said extended address by designating an extended address

25. The system of claim 24, wherein if said extended address does not exist, said second device creates a node at said extended address.

26. The system of claim 21, wherein said first device obtains said extended address by determining said extended address based on information input by a user.

27. The system of claim 21, wherein said first device obtains said extended address by reference to a pre-designated address.

28. The system of claim 21, wherein said synchronization of said informational node is initiated by transmitting a synchronization alert to said second device.

29. The system of claim 28, wherein said synchronization alert is transmitted to said second device via a second synchronization command of a plurality of synchronization commands.

30. The system of claim 29, wherein said first device obtains said extended address of said node by a negotiation process with said second device.

31. A method of synchronizing a plurality of devices, comprising:

receiving, by a second device, a synchronization command from a first device;

synchronizing, by said second device, an informational node stored in a hierarchical tree structure in said second device, wherein

said synchronizing said informational node is performed in response to said synchronization command, said request comprising an extended address representative of a location of said informational node within said hierarchical tree structure.

32. The method of claim 31, wherein said synchronizing said informational node is initiated by receiving a synchronization command from said first device.

33. The method of claim 32, wherein a synchronization alert comprises said extended address.

34. The method of claim 32, wherein said synchronization command is transmitted to said second device via a second synchronization command of a plurality of synchronization commands.

35. The method of claim 33, wherein if a plurality of informational nodes are to be synchronized, said synchronization alert comprises a respective plurality of extended addresses.