TERMINAL AND INTERMEDIATE NODE IN CONTENT ORIENTED NETWORKING ENVIRONMENT AND COMMUNICATION METHOD OF TERMINAL AND INTERMEDIATE NODE

• US 20120136945A1
• Filed: 06/15/2011
• Published: 05/31/2012
• Est. Priority Date: 11/30/2010
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Lee, Ji Hoon, Jang, Myeong Wuk, Kim, Jae Hoon, Byun, Do Jun, Park, Joong Hong, Choi, Sung Chan
• Granted Patent: US 8,996,626 B2
• Time in Patent Office: Days
• US Class Current: 709/206
• CPC Class Codes: H04L 67/567 Integrating service provisioning from a plurality of service providers

Abstract

A content sharing method of an intermediate node based on a content oriented network (CON) is provided. The method includes receiving, from a content requesting terminal, a proxy sharing request message with respect to a content including a content name of the content, the content including a plurality of data segments, generating data segment request messages with respect to each of the plurality of data segments corresponding to the content, in response to the reception of the proxy sharing request message, transmitting the data segment request messages to at least one terminal having the plurality of data segments, receiving the plurality of data segments from the at least one terminal, and transmitting the content to the content requesting terminal, using an aggregated data transmission scheme based on the received plurality of data segments.

Claims

1. A content sharing method of an intermediate node based on a content oriented network (CON), the method comprising:

receiving, from a content requesting terminal, a proxy sharing request message with respect to a content including a content name of the content, the content including a plurality of data segments;

generating data segment request messages with respect to each of the plurality of data segments corresponding to the content, in response to the reception of the proxy sharing request message;

transmitting the data segment request messages to at least one terminal having the plurality of data segments;

receiving the plurality of data segments from the at least one terminal; and

transmitting the content to the content requesting terminal, using an aggregated data transmission scheme based on the received plurality of data segments.

2. The method of claim 1, wherein the receiving of the proxy sharing request message comprises receiving the proxy sharing request message with respect to the content using a session initiation protocol.

3. The method of claim 1, wherein the proxy sharing request message with respect to the content includes identification information of the content requesting terminal based on a public key for a security between the content requesting terminal and the intermediate node.

4. The method of claim 1, wherein each of the data segment request messages includes the content name and identification information with respect to a corresponding data segment.

5. The method of claim 1, wherein the transmitting of the data segment request messages comprises:

determining a routing path from the intermediate node to the at least one terminal having the plurality of data segments; and

transmitting the data segment request messages to the at least one terminal having the plurality of data segments, based on the routing path.

6. The method of claim 1, further comprising:

storing the received plurality of data segments so that the intermediate node is used as a cache with respect to a content request.

7. The method of claim 1, wherein the transmitting of the content comprises transmitting the content to the content requesting terminal using the aggregated data transmission scheme, where a reception of the plurality of data segments corresponding to the data segment request messages is completed.

8. The method of claim 1, wherein the transmitting of the content comprises:

requesting the content requesting terminal to receive the content; and

transmitting the content to the content requesting terminal, based on a response to the request for a reception of the content.

9. The method of claim 1, wherein the transmitting of the content comprises transmitting the content to the content requesting terminal, where a request for a transmission of the content is received from the content requesting terminal.

10. The method of claim 1, further comprising:

transmitting, to the content requesting terminal, a message for requesting a preparation for a reception of the content, where the content has failed to be transmitted to the content requesting terminal; and

retransmitting the content to the content requesting terminal.

23. The method of claim 1, wherein the proxy sharing request message includes lifetime information indicating a period of time of validity for the proxy sharing request message.

11. A content sharing method of a content requesting terminal based on a content oriented network (CON), the method comprising:

transmitting, to an intermediate node, a proxy sharing request message with respect to a content including a content name of the content, so that the intermediate node generates data segment request messages with respect to each of a plurality of data segments corresponding to the content, and acquires the content using the data segment request messages, the content including the plurality of data segments; and

receiving, from the intermediate node, the content based on the plurality of data segments using an aggregated data transmission scheme.

12. The method of claim 11, wherein:

the transmitting comprises transmitting the proxy sharing request message with respect to the content using a session initiation protocol; and

the receiving comprises receiving the content using a session initiation protocol.

13. The method of claim 11, wherein the proxy sharing request message includes identification information of the content requesting terminal based on a public key for securing communications between the content requesting terminal and the intermediate node.

14. The method of claim 11, wherein the proxy sharing request message includes lifetime information indicating a period of time of validity for the proxy sharing request message.

15. The method of claim 11, wherein the receiving of the content comprises:

receiving, from the intermediate node, a request for a reception of the content;

responding, to the intermediate node, to the request for a reception of the content; and

receiving the content transmitted by the intermediate node according to the response.

16. The method of claim 11, wherein the receiving of the content comprises:

requesting the intermediate node for a transmission of the content; and

receiving the content transmitted by the intermediate node in response to the request for a transmission of the content.

17. An intermediate node performing a content sharing based on a content oriented network (CON), the intermediate node comprising:

a receiving unit configured to receive, from a content requesting terminal, a proxy sharing request message with respect to a content including a content name of the content, the content including a plurality of data segments;

a processing unit configured to generate data segment request messages with respect to each of the plurality of data segments corresponding to the content, in response to the reception of the proxy sharing request message; and

a transmitting unit configured to transmit the data segment request messages to at least one terminal having the plurality of data segments, wherein

the receiving unit receives the plurality of data segments from the at least one terminal, and

the transmitting unit transmits the content to the content requesting terminal, using an aggregated data transmission scheme based on the received plurality of data segments.

18. The intermediate node of claim 17, wherein:

the receiving unit receives the proxy sharing request message with respect to the content using a session initiation protocol, and the transmitting unit transmits the content using a session initiation protocol.

19. The intermediate node of claim 17, wherein each of the data segment request messages includes the content name and identification information with respect to a corresponding data segment.

20. The intermediate node of claim 17, wherein:

the processing unit determines a routing path from the intermediate node to the at least one terminal having the plurality of data segments, and

the transmitting unit transmits the data segment request messages to the at least one terminal having the plurality of data segments, based on the routing path.

21. The intermediate node of claim 17, wherein the transmitting unit transmits the content to the content requesting terminal using the aggregated data transmission scheme, where a reception of the plurality of data segments corresponding to the data segment request messages is completed.

22. The intermediate node of claim 18, wherein the transmitting unit requests the content requesting terminal for a reception of the content, and transmits the content to the content requesting terminal, based on a response to the request for a reception of the content.

24. The intermediate node of claim 17, wherein the proxy sharing request message includes lifetime information indicating a period of time of validity for the proxy sharing request message.

25. A content requesting terminal performing a content sharing based on a content oriented network (CON), the content requesting terminal comprising:

a proxy sharing request message generating unit configured to generate a proxy sharing request message with respect to a content;

a transmitting unit configured to transmit, to an intermediate node, the proxy sharing request message with respect to the content;

a receiving unit configured to receive, from the intermediate node, the content based on data segments; and

a storage unit configured to store the received content from the intermediate node.

26. The content requesting terminal of claim 25, wherein the intermediate node aggregates the data segments being sent to the content requesting terminal.

27. The content requesting terminal of claim 25, wherein the proxy sharing request message includes lifetime information indicating a period of time of validity for the proxy sharing request message.