Contents providing system and method for streaming service

• US 20070136487A1
• Filed: 09/19/2006
• Published: 06/14/2007
• Est. Priority Date: 12/08/2005
• Status: Abandoned Application

• Current Assignee: Electronics and Telecommunications Research Institute
• Original Assignee: Electronics and Telecommunications Research Institute
• Inventors: Kim, Han, Lee, Won, Min, Ok, Kim, Chang, Woo, Sang, Park, Yoo
• Application Number:
  US11/523,198
• Publication Number:
  US 20070136487A1
• Time in Patent Office: Days
• US Class Current: 709/231
• CPC Class Codes: H04L 65/612 for unicast
• CPC Class Codes: H04L 67/14 Session management for real-time applications in data packet communications networks H04L65/1066
• CPC Class Codes: H04L 67/145 avoiding end of session, e.g. keep-alive, heartbeats, resumption message or wake-up for inactive or interrupted session

Abstract

A content providing system and method for a streaming service are provided. The content providing system is connected to at least one of wired/wireless terminals and a wide area server. The content providing system includes at least one of local servers and a manage node. The local servers store contents received from the wide area server and provide context index information. The managing node manages the context index information by the contents stored in the local servers and the wide area server, and determines a storing location of a corresponding content from the context index information if a content request message is received from a terminal. Also, the managing node transmits the requested content to the terminal through a wired/wireless Internet network by transmitting a content-transmission message to local servers having the corresponding content or the wide area server.

Claims

1. A content providing system connected to at least one of wired/wireless terminals and a wide area server, for supporting a streaming service, the content providing system comprising:

at least one of local servers for storing contents received from the wide area server and providing context index information of the contents; and

a managing node for managing the context index information by the contents stored in each of the local servers and the wide area server, determining a location of storing a corresponding content from the context index information according to type information of the corresponding content if a content request message is received from a terminal, and transmitting a content-transmission message to local servers having the corresponding content or the wide area server so that the local servers or the wide area server transmit the content requested by the terminal to the terminal through a wired/wireless Internet network.

2. The content providing system of claim 1, wherein the context index information includes at least one of information about identification of each of the contents, storing location of each of the contents, and starting information or end information of the stored content.

3. The content providing system of claim 1, wherein the wide area server transmits the context index information of each of the contents to the content providing system and transmits an entire content or a partial content to a corresponding terminal according to a content transmission message received from the content providing system.

4. The content providing system of claim 1, wherein the managing node searches local servers that store the entire content if the content type information included in the content request message is entire content information, and transmits the content transmission message to the wide area server if no local server having the entire content is searched.

5. The content providing system of claim 1, wherein the managing node searches local servers having a partial content if the content type information included in the content request message is partial content information, and transmits the content transmit message to the wide area server if no local server having the partial content is searched.

6. The content providing system of claim 1, wherein if a content requested through the content request message is distributed into at least one of local servers, the managing node sequentially transmits a content transmission message to corresponding local servers or the wide area server according to start information and end information of the content stored in each local server in order to sequentially transmit the distributed contents stored in the local servers or the wide area server.

7. The content providing system of claim 1, wherein the content transmission message includes at leas one of information about storing locations of the content, a user process registration identification, a server process registration identification, a size of content to transmit, start information, end information and a content transmit rate.

8. The content providing system of claim 7, wherein the managing node decides the content transmit rate by measuring a bandwidth and a processing capacity of the each local server or the wide area server for transmitting contents.

9. The content providing system of claim 1, wherein the content request message includes at least one of information about a user account, a user account password, an address of a terminal, an address of a managing node and a content type.

10. The content providing system of claim 1, wherein the local server or the wide area server includes a content transmission managing unit for managing the stored context index information, and transmitting the content to a corresponding terminal according to content size information, start information and end information in the received content transmission message.

11. The content providing system of claim 10, wherein the content transmission managing unit includes:

an index managing unit for managing the stored context index information;

a process analyzing unit for analyzing a content transmission type when a content transmission message is received, and determining whether the content is stored or not using the index information;

a content processing unit for reading a corresponding content according to storing location information, start information or end information of the content, which are checked at the process analyzing unit, and storing contents received from other local servers or the wide area server;

a content transceiving unit for transmitting the contents read from the content processing unit or receiving contents from the wide area server or other local servers; and

a content state processing unit for transmitting content index information and content state information, which are managed in the index processing unit, to a managing node.

12. A streaming service system comprising:

at least one of terminals for receiving a content through a wired/wireless Internet network and providing a streaming service to a user;

a wide area server for storing contents for a streaming service and transmitting the contents; and

at least one of content providing systems including at least one of local servers for storing contents received from the wide area server, managing content index information of contents stored in each of the local servers and the wide area server, and transmitting contents from a corresponding local server or the wide area server to a corresponding terminal by checking content index information according to a content request message received from each of the terminals.

13. The streaming server system of claim 12, the content providing system includes:

at least one of local servers for storing contents received from the wide area server and providing index information of the contents; and

a managing node for managing the index information by the contents stored in each of the local servers and the wide area server, determining a location of storing a corresponding content from the index information according to type information of the corresponding content if a content request message is received from a terminal, and transmitting the requested content to the terminal through a wired/wireless Internet network by transmitting a content-transmission message to local servers having the corresponding content or the wide area server.

14. A method of providing contents for supporting a streaming service in a content providing system connected to at least one of wired/wireless terminal and a wide area server, the method comprising the steps of:

a) at each of the local servers, storing contents received from the wide area server;

b) at a managing node, managing content index information by the contents stored in each of the local servers;

c) detecting local servers having a corresponding content by analyzing the content index information if a content request message is received from a terminal through a wired/wireless Internet network, and transmitting a content transmission message to the detected local server; and

d) at the detected local server, transmitting the content to the corresponding terminal.

15. The method of claim 14, wherein the content index information includes at least one of information about identifications of each of the contents, storing locations of each of the contents, and start and end information of the stored contents.

16. The method of claim 14, wherein the step b) includes the steps of:

b-1) at the wide area server, transmitting content index information to the managing node; and

b-2) at the managing node, managing the content index information stored in each of the local servers and the wide area server.

17. The method of claim 14, wherein the content request message includes at least one of information about a user account, a user account password, an address of a terminal, an address of a managing node and a content type.

18. The method of claim 14, wherein in the step c), local servers that store an entire content are searched if the content type information included in the content request message is entire content information, and a content transmission message is transmitted to the wide area server if no local server having the entire content is searched.

19. The method of claim 14, wherein in the step c), local servers having a partial content are searched if the content type information included in the content request message is partial content information, and a content transmit message is transmitted to the wide area server if no local server having the partial content is searched.

20. The method of claim 14, wherein in the step c), if a content requested through the content request message is distributed into at least one of local servers, a content transmission message is sequentially to corresponding local servers or the wide area server according to start information and end information of the content stored in each local server in order to sequentially transmit the distributed contents stored in the local servers or the wide area server.

21. The method of claim 14, wherein in the step c), a partial content requested from a user is selected according to content size information, start information and end information in the received content transmission message, and the selected partial content is transmitted.

22. The method of claim 14, wherein the content transmission message includes at leas one of information about storing locations of the content, a user process registration identification, a server process registration identification, a size of content to transmit, start information, end information and a content transmit rate.

23. The method of claim 14, wherein the managing node decides the content transmit rate by measuring a bandwidth and a processing capacity of the each local server or the wide area server for transmitting contents.

24. The method of claim 14, wherein in the step d), the local server or the wide area server select a corresponding content according to content storing location information and content size information included in a content transmission message, and the selected content is transmitted to a corresponding terminal according to the content transmit rate.

25. The method of claim 14, further comprising the steps of:

receiving a content from the wide area server or other local servers, and storing the received content;

managing content index information stored in each of the local servers and the wide area server;

analyzing a content transmission type if a content transmission message is received, and determining whether a corresponding content is stored or not from the content index information;

reading a corresponding content according to the content index information and transmitting the read content to a corresponding terminal; and

transmitting content index information and content state information to a managing node.