METHOD FOR DELIVERING CONTENT IN COMMUNICATION NETWORK AND APPARATUS THEREFOR

• US 20150341449A1
• Filed: 08/04/2015
• Published: 11/26/2015
• Est. Priority Date: 06/10/2013
• Status: Active Grant

• Current Assignee: SK Telecom Co., Ltd.
• Original Assignee: SK Telecom Co., Ltd.
• Inventors: LEE, Jongmin, HO, Yonghwan, LEE, Kyungjun, KWON, Arum
• Granted Patent: US 10,594,803 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04L 12/6418 Hybrid transport
• CPC Class Codes: H04L 51/08 Annexed information, e.g. attachments
• CPC Class Codes: H04L 67/01 Protocols
• CPC Class Codes: H04L 67/02 based on web technology, e.g. hypertext transfer protocol [HTTP]
• CPC Class Codes: H04L 67/1095 Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
• CPC Class Codes: H04L 67/51 Discovery or management thereof, e.g. service location protocol [SLP] or web services
• CPC Class Codes: H04L 67/568 Storing data temporarily at an intermediate stage, e.g. caching

Abstract

A cache control device for content delivery, includes: an interface module to communicate with a cache device and a content server; a storage module to store a service list in which service types of respective content servers are recorded; and a control module to identify the content server from at least one of (i) a content request message received from the interface module and requesting content and (ii) a content response message received from the interface module and delivering the content, determine a service type of the content server with reference to the service list stored in the storage module, and perform control so that an indicator indicating the determined service type is transmitted to the cache device through the interface module.

Claims

1. A cache control device for content delivery, comprising:

an interface module configured to communicate with a cache device and a content server;

a storage module configured to store a service list in which service types of respective content servers are recorded; and

a control module configured to

identify the content server from at least one of (i) a content request message received from the interface module and requesting content and (ii) a content response message received from the interface module and delivering the content,

determine a service type of the content server with reference to the service list stored in the storage module, and

perform control so that an indicator indicating the determined service type is transmitted to the cache device through the interface module.

2. The cache control device of claim 1, wherein, when the determined service type is a first service, the control module is configured to notify the content server to stop transmission of the content through the interface module.

3. The cache control device of claim 1, wherein, when the determined service type is a second service, the control module is configured to transmit label information identifying unit data of the content to the cache device through the interface module to cause the cache device to transmit the unit data of the content to user equipment (UE) according to the label information.

4. The cache control device of claim 1, wherein the control module is configured to transmit a part of the content received from the content server through the interface module to the cache device to cause the cache device to determine whether or not the cache device has the content through the part of the content.

5. A cache device for content delivery, comprising:

an interface unit configured to communicate with user equipment (UE) and a cache control device;

a storage unit having a storage space configured to store a plurality of contents according to service types; and

a control unit configured to

identify a service type through a received indicator indicating a service type of a content server when receiving the indicator from the cache control device through the interface unit, and

perform control so that content is transmitted to the UE in different ways according to the identified service type.

6. The cache device of claim 5, wherein, when the identified service type is a first service, the control unit is configured to perform control so that a piece of content identical to a piece of content among a plurality of pieces of content received from the content server is transmitted to the UE through the interface unit.

7. The cache device of claim 5, wherein, when the identified service type is a second service, the control unit is configured to transmit unit data of the content identifiable using label information received through the interface unit to the UE.

8. The cache device of claim 5, wherein the storage space includes a first service storage region for storing content corresponding to a first service and a second service storage region for storing content corresponding to a second service,

the content stored in the first service storage region is not deleted for a previously set time period, and

the content stored in the second service storage region is maintained or deleted according to a frequency of requests for the content.

9. A method performed by a cache control device for content delivery, the method comprising:

identifying a content server from at least one of a content request message for requesting content and a content response message for delivering the content;

determining a service type of the content server with reference to a service list in which service types of respective content servers are recorded; and

transmitting an indicator indicating the determined service type to a cache device.

10. The method of claim 9, further comprising:

after the transmitting of the indicator, notifying the content server to stop transmission of the content when the determined service type is a first service.

11. The method of claim 9, further comprising:

after the transmitting of the indicator, transmitting label information to the cache device when the determined service type is a second service so that the cache device transmits unit data of the content identified according to the label information to user equipment (UE).

12. The method of claim 10, further comprising:

after the transmitting of the indicator, transmitting label information to the cache device when the determined service type is a second service so that the cache device transmits unit data of the content identified according to the label information to user equipment (UE).