TERMINAL DEVICE BASED ON CONTENT NAME, AND METHOD FOR ROUTING BASED ON CONTENT NAME

• US 20110161355A1
• Filed: 11/15/2010
• Published: 06/30/2011
• Est. Priority Date: 12/24/2009
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Choi, Sung Chan, Park, Joong Hong, Kim, Jae Hoon, Lee, Ji Hoon, Jang, Myeong Wuk
• Granted Patent: US 9,264,342 B2
• Time in Patent Office: Days
• US Class Current: 707/769
• CPC Class Codes: G06F 16/90339 by using parallel associative memories or content-addressable memories
• CPC Class Codes: G06F 16/95 Retrieval from the web
• CPC Class Codes: H04L 45/00 Routing or path finding of packets in data switching networks routing or path finding in wireless networks H04W40/00
• CPC Class Codes: H04L 45/306 Route determination based on the nature of the carried application
• CPC Class Codes: H04L 45/54 Organization of routing tables
• CPC Class Codes: H04L 49/355 Application aware switches, e.g. for HTTP
• CPC Class Codes: H04L 67/06 specially adapted for file transfer, e.g. file transfer protocol [FTP]
• CPC Class Codes: H04L 67/63 Routing a service request depending on the request content or context

Abstract

In a network system based on a content name, a terminal device may generate and transmit a block query requesting a plurality of segments, and may receive segments corresponding to the block query based on a transmission direction of the block query.

Claims

1. A terminal device based on content name, the terminal device comprising:

a query generator to generate, with respect to content comprising a plurality of segments, a block query comprising a content name and a block range of segments of the content;

a table search unit to search a routing table for the content name corresponding to the generated block query;

a field setting unit to set a flag corresponding to the found content name, and to set a block range of segment numbers corresponding to the generated block query in a number field; and

a query transmitter to transmit the block query using a transmission direction corresponding to the found content name,

wherein the block range of segments corresponding to the block query have the same transmission direction.

2. The terminal device of claim 1, wherein the field setting unit is configured to set a state field of each of the block range of segments corresponding to the block query.

3. The terminal device of claim 1, wherein, when at least one of the block range of segments corresponding to the block query is received within a predetermined lifetime, the query generator is configured to adjust the block range, and to generate the block query comprising the adjusted block range and the content name.

4. The terminal device of claim 1, further comprising:

a content receiver to receive the block range of segments corresponding to the block query using the same direction as the transmission direction of the block query.

5. The terminal device of claim 4, wherein the content receiver is configured to receive the block range of segments corresponding to the block query and one or more of the block range of segments have different routing paths.

6. A method for routing based on content name, the method comprising:

generating, with respect to content comprising a plurality of segments, a block query comprising a content name and a block range of segments of the content;

searching a routing table for the content name corresponding to the generated block query;

setting a flag corresponding to the found content name, and setting a block range of segment numbers corresponding to the generated block query in a number field; and

transmitting the block query using a transmission direction corresponding to the found content name,

wherein the block range of segments corresponding to the block query have the same transmission direction.

7. The method of claim 6, further comprising:

setting a state field of each of the block range of segments corresponding to the block query.

8. The method of claim 6, wherein the generating comprises:

adjusting the block range when at least one of the block range of segments corresponding to the block query is received within a predetermined lifetime; and

generating the block query comprising the adjusted block range and the content name.

9. The method of claim 6, further comprising:

receiving the block range of segments corresponding to the block query using the same direction as the transmission direction of the block query.

10. The method of claim 9, wherein one or more of the received block range of segments corresponding to the block query have different routing paths.

11. A terminal device based on content name, the terminal device comprising:

a query receiver to receive a block query that requests content, wherein the content comprises a plurality of segments and the block query requests at least two segments from among the plurality of segments;

a table search unit to search a routing table for a content name corresponding to the requested content; and

a field setting unit to set a flag corresponding to the found content name,

wherein the at least two segments corresponding to the block query have the same transmission direction.

12. The terminal device of claim 11, further comprising:

a query transmitter to transmit the block query using a transmission direction corresponding to the found content name, based on whether the requested content is stored.

13. The terminal device of claim 11, wherein the field setting unit is configured to set a state field of the requested content in the routing table, and to set a reception direction of the block query with respect to the at least two segments corresponding to the block query.

14. The terminal device of claim 13, further comprising:

a content transmitter to transmit each of the at least two segments corresponding to the block query using the set reception direction.

15. The terminal device of claim 13, further comprising:

a content receiver to receive at least one segment from among the at least two segments corresponding to the block query using a transmission direction of the block query when the requested content is not stored.

16. A method for routing based on content name, the method comprising:

receiving a block query requesting content, wherein the content comprises a plurality of segments and the block query requests at least two segments from among the plurality of segments;

searching a routing table for a content name corresponding to the requested content; and

setting a flag corresponding to the found content name,

wherein the at least two segments corresponding to the block query have the same transmission direction.

17. The method of claim 16, further comprising:

transmitting the block query using a transmission direction corresponding to the found content name, based on whether the requested content is stored.

18. The method of claim 16, further comprising:

setting a state field of the requested content in the routing table; and

setting a reception direction of the block query with respect to the at least two segments corresponding to the block query.

19. The method of claim 18, further comprising:

transmitting each of the at least two segments corresponding to the block query using the set reception direction.

20. The method of claim 18, further comprising:

receiving at least one segment from among the at least two segments corresponding to the block query using a transmission direction of the block query when the requested content is not stored.

21. A network apparatus using a routing table, the network apparatus comprising:

a content name field used to search for content comprising a plurality of segments;

a transmission direction field used to transmit a query for requesting the content;

a reception direction field to indicate a reception direction of the query;

a flag field to indicate whether the query corresponds to a block query requesting at least two segments from among the plurality of segments; and

a number field to indicate a number of a segment corresponding to the requested query.

22. The network apparatus of claim 21, further comprising:

a state field to indicate whether the content corresponding to the transmitted query is received; and

a time field to indicate a reception lifetime of the content.

23. The network apparatus of claim 21, wherein:

the query is transmitted using a transmission direction set in the transmission direction field, and the content corresponding to the query is received using a transmission direction of the query, and

the reception direction field comprises the reception direction of the query, and the content corresponding to the query is transmitted using the reception direction of the query.

24. The network apparatus of claim 21, wherein:

the block query comprises a content name and a block range, and

the block range comprises a start segment and a last segment from among the at least two segments corresponding to the block query.