Method and device for processing service in software-defined networking system

• US 9,544,389 B2
• Filed: 05/15/2014
• Issued: 01/10/2017
• Est. Priority Date: 05/15/2013
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Jeon, Young-Ki, Kang, Seong-Ryong, Kim, Woo-Jae, Kim, Jong-Hyune, Choi, Jung-Ah
• Primary Examiner(s): Kizou, Hassan
• Assistant Examiner(s): BHATTI, HASHIM S
• Application Number:
  US14/279,201
• Publication Number:
  US 20140341199A1
• Time in Patent Office: 971 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: H04L 45/64 using an overlay routing layer
• CPC Class Codes: H04L 49/00 Packet switching elements
• CPC Class Codes: H04L 61/5007 Internet protocol [IP] addresses
• CPC Class Codes: H04L 67/568 Storing data temporarily at an intermediate stage, e.g. caching
• CPC Class Codes: H04W 4/18 Information format or content conversion, e.g. adaptation by the network of the transmitted or received information for the purpose of wireless delivery to users or terminals
• CPC Class Codes: H04W 40/02 Communication route or path selection, e.g. power-based or shortest path routing

Abstract

A method and device for processing a service in a mobile communication system based on SDN technology are provided. The method of controlling access caches in a communication network includes receiving information about contents requested by a user equipment (UE) connected to a first base station. The method also includes transmitting a forwarding request that requests to control at least one switch in order for an access cache that has the contents and that interworks with a second eNB to transfer the contents to the first eNB.

Claims

1. A method for operating a switch connected to a controller in a software-defined network (SDN) based mobile communication network, the method comprising:

performing, through a mobility management entity (MME), bearer setup with a user equipment (UE) accessed to a based station (BS), the BS connected to a first access cache not storing contents;

transmitting, to the controller, information for the bearer setup and an UE internet protocol (IP) address allocated by the MME;

receiving, from the UE, a packet for requesting contents;

transmitting, to a deep packet inspection (DPI) connected to the controller, header information that is generated based on the packet;

receiving, from the controller, a message for setting a path between the UE and a second access cache connected to a neighboring BS, the second access cache storing the contents; and

providing, to the UE, the contents transmitted from the second access cache.

2. The method of claim 1, further comprising:

performing general packet radios system tunneling packet (GTP) termination; and

receiving, from the UE, from the packet based on the GTP termination.

3. The method of claim 1, wherein the header information comprises a uniform resource location (URL) of the contents.

4. The method of claim 1, wherein the header information is generated by decapsulating the packet.

5. The method of claim 1, wherein the packet is a hyper text transfer protocol (HTTP) GET request packet.

6. A method for operating a controller in a software-defined network (SDN) based mobile communication network, the method comprising:

receiving, from a switch, information for bearer setup between the switch and an user equipment (UE) and an UE internet protocol (IP) address allocated by a mobility management entity (MME), wherein the UE is accessed to the BS and the BS is connected to a first access cache not storing contents;

receiving, from a smart cache manager, a first message for notifying that a second access cache connected to a neighboring BS stores contents, wherein the contents is requested from the UE; and

transmitting, to the switch, a second message for setting a path between the UE and the second access cache,

wherein the first message is generated, by the controller, based on the information for the bearer setup and the UE IP address, and

wherein the contents is provided to the UE from the second access cache.

7. The method of claim 6, wherein the first message is generated based on a third message for notifying that the contents is preloaded contents, and wherein the third message is transmitted, to the smart cache manager, from a deep packet inspection (DPI).

8. The method of claim 7, wherein the third message is determined based on header information regarding a packet for requesting the contents, and wherein the header information is transmitted, from the switch, in response to receiving the packet.

9. The method of claim 8, wherein the header information comprises a uniform resource location (URL) of the contents, and wherein the third message is determined based on the URL.

10. The method of claim 8, wherein the header information is generated by decapsulating the packet.

11. An apparatus of a switch connected to a controller in a software-defined network (SDN) based mobile communication network, the apparatus comprising:

a sub-controller configured to;

perform, through a mobility management entity (MME), bearer setup with a user equipment (UE) accessed to a base station (BS), the BS connected to a first access cache not storing contents;

transmit, to the controller, information for the bearer setup and an UE internet protocol (IP) address allocated by the MME;

receive, from the UE, a packet for requesting contents;

transmit, to a deep packet inspection (DPI) connected to the controller, header information that is generated based on the packet;

receive, from the controller, a message for setting a path between the UE and a second access cache connected to a neighboring BS, the second access cache storing the contents; and

provide, to the UE, the contents transmitted from the second access cache.

12. The apparatus of claim 11, wherein the sub-controller is further configured to:

perform GTP(general packet radios system tunneling packet) termination; and

receive, from the UE, from the packet based on the GTP termination.

13. The apparatus of claim 11, wherein the header information comprises a uniform resource location (URL) of the contents.

14. The apparatus of claim 11, wherein the header information is generated by decapsulating the packet.

15. The apparatus of claim 11, wherein the packet is a hyper text transfer protocol (HTTP) GET request packet.

16. An apparatus of a controller in a software-defined network (SDN) based a mobile communication network, the apparatus comprising:

a sub-controller; and

a communication interface operatively coupled to the sub-controller,

wherein the sub-controller is configured to;

receive, from a switch, information for bearer setup between the switch and an user equipment (UE) and an UE internet protocol (IP) address allocated by a mobility management entity (MME), wherein the UE is accessed to the BS and the BS is connected to a first access cache not storing contents;

receive, from a smart cache manager, a first message for notifying that a second access cache connected to a neighboring BS stores contents, wherein the contents is required from the UE; and

transmit, to the switch, a second message for setting a path between the UE and the second access cache, wherein the first message is generated, by the controller, based on the information for the bearer setup and the UE IP address, and wherein the contents is provided to the UE from the second access cache.

17. The apparatus of claim 16, wherein the first message is generated based on a third message for notifying that the contents is preloaded contents, wherein the third message is transmitted, to the smart cache manager, from a deep packet inspection (DPI).

18. The apparatus of claim 17, wherein thee third message is determined based on header information regarding a packet for requesting the contents, wherein the header information is transmitted, from the switch, in response to receiving the packet.

19. The apparatus of claim 18, wherein the header information comprises a uniform resource location (URL) of the contents, and wherein the third message is determined based on the URL.

20. The apparatus of claim 18, wherein the header information is generated by decapsulating the packet.