APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING DATA IN MOBILE CONTENT NETWORK

• US 20140369259A1
• Filed: 06/13/2014
• Published: 12/18/2014
• Est. Priority Date: 06/14/2013
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: LEE, Chul-Ki, PARK, Jung-Shin, SON, Yeong-Moon, FRANKLIN, Antony
• Granted Patent: US 9,609,684 B2
• Time in Patent Office: Days
• US Class Current: 370/328
• CPC Class Codes: H04L 65/612 for unicast
• CPC Class Codes: H04L 67/568 Storing data temporarily at an intermediate stage, e.g. caching
• CPC Class Codes: H04W 40/02 Communication route or path selection, e.g. power-based or shortest path routing
• CPC Class Codes: H04W 40/20 based on geographic position or location
• CPC Class Codes: H04W 76/20 Manipulation of established connections

Abstract

A method for receiving data in a User Equipment (UE) in a mobile content network is provided. The method includes transmitting a request message, which requests a content, to a first Digital Unit (DU), receiving an Internet Protocol (IP)_ADD message, including information of a second DU which caches the content, from the first DU, updating a Stream Control Transmission Protocol (SCTP) connection according to the information of the second DU included in the IP_ADD message, and receiving data from the second DU using the updated SCTP connection.

Claims

1. A method for receiving data in a User Equipment (UE) in a mobile content network, the method comprising:

transmitting a request message, which requests a content, to a first Digital Unit (DU);

receiving an Internet Protocol (IP)_ADD message, including information of a second DU which caches the content, from the first DU;

updating a Stream Control Transmission Protocol (SCTP) connection according to the information of the second DU included in the IP_ADD message; and

receiving data from the second DU using the updated SCTP connection.

2. The method of claim 1, further comprising:

transmitting an ACKnowledgement (ACK) message, as a response message to the IP_ADD message, to the first DU.

3. The method of claim 1, wherein the information on the second DU included in the IP_ADD message includes an IP address of the second DU.

4. The method of claim 1, wherein the IP_ADD message further includes a binding policy.

5. The method of claim 1, wherein the UE receives the IP_ADD message from the first DU and the data from the second DU only if the first DU does not currently cache the requested content.

6. The method of claim 1, wherein the data comprises the requested content.

7. A method for transmitting data in a first Digital Unit (DU) in a mobile content network, the method comprising:

receiving a request message, which requests a content, from a User Equipment (UE);

determining whether the first DU currently caches the content which the UE requests;

routing the request message to a second DU, as a DU which is expected to cache the content which the UE requests, if the first DU does not cache the content which the UE requests; and

transmitting an Internet Protocol (IP)_ADD message, including information of the second DU, to the UE.

8. The method of claim 7, further comprising:

transmitting an IP_ADD message including information of the UE to the second DU.

9. The method of claim 7, further comprising:

receiving an ACKnowledgement (ACK) message, as a response message to the IP_ADD message, from the UE.

10. The method of claim 7, wherein the information of the second DU included in the IP_ADD message includes an IP address of the second DU.

11. The method of claim 7, wherein the IP_ADD message further includes a binding policy.

12. The method of claim 8, wherein the IP_ADD message including the information of the UE which is transmitted to the second DU includes a new stream IDentifier (ID) and a sequence number.

13. The method of claim 7, wherein the second DU comprises a DU geographically closest to the first DU.

14. A method for transmitting data in a second Digital Unit (DU) in a mobile content network, the method comprising:

receiving a request message, which requests a content, from a first DU which receives the request message from a User Equipment (UE);

determining whether the second DU currently caches the content which the UE requests; and

transmitting the content which the UE requests to the UE if the second DU caches the content which the UE requests.

15. The method of claim 14, further comprising:

receiving an Internet Protocol (IP) ADD message, including information of the UE, from the first DU.

16. The method of claim 15, wherein the IP_ADD message includes a new stream IDentifier (ID) and a sequence number.

17. The method of claim 14, wherein the second DU receives the request message and transmits the content only if the first DU does not currently cache the requested content.

18. The method of claim 14, wherein if the second DU does not currently cache the requested content, the second DU transmits the request message to a third DU comprising a DU geographically closest to the first DU other than the second DU.

19. A User Equipment (UE) in a mobile content network, the UE comprising:

a transmitter configured to transmit a request message, which requests a content, to a first Digital Unit (DU);

a receiver configured to receive an Internet Protocol (IP)_ADD message, including information of a second DU which caches the content, from the first DU; and

a controller configured to update a Stream Control Transmission Protocol (SCTP) connection according to the information of the second DU included in the IP_ADD message,

wherein the receiver receives data from the second DU using the updated SCTP connection.

20. The UE of claim 19, wherein the transmitter transmits an ACKnowledgement (ACK) message, as a response message to the IP_ADD message, to the first DU.

21. The UE of claim 19, wherein the information of the second DU included in the IP_ADD message includes an IP address of the second DU.

22. The UE of claim 19, wherein the IP_ADD message further includes a binding policy.

23. The UE of claim 19, wherein the UE receives the IP_ADD message from the first DU and the data from the second DU only if the first DU does not currently cache the requested content.

24. The UE of claim 19, wherein the data comprises the requested content.

25. A first Digital Unit (DU) in a mobile content network, the first DU comprising:

a receiver configured to receive a request message, which requests a content, from a User Equipment (UE);

a controller configured to determine whether the first DU currently caches the content which the UE requests;

a controller configured to route the request message to a second DU, as a DU which is expected to cache the content which the UE requests, if the first DU does not cache the content which the UE requests, and to transmit an Internet Protocol (IP)_ADD message, including information of the second DU, to the UE.

26. The first DU of claim 25, wherein the transmitter transmits an IP_ADD message including information of the UE to the second DU.

27. The first DU of claim 25, wherein the receiver receives an ACKnowledgement (ACK) message, as a response message to the IP_ADD message, from the UE.

28. The first DU of claim 25, wherein the information of the second DU included in the IP_ADD message includes an IP address of the second DU.

29. The first DU of claim 25, wherein the IP_ADD message further includes a binding policy.

30. The first DU of claim 26, wherein the IP_ADD message including the information of the UE, which is transmitted to the second DU, includes a new stream IDentifier (ID) and a sequence number.

31. The first DU of claim 25, wherein the second DU comprises a DU geographically closest to the first DU.

32. A second Digital Unit (DU) in a mobile content network, the second DU comprising:

a receiver configured to receive a request message, which requests a content, from a first DU which receives the request message from a User Equipment (UE);

a controller configured to determine whether the second DU currently caches the content which the UE requests; and

a transmitter configured to transmit the content which the UE requests to the UE if the second DU caches the content which the UE requests.

33. The second DU of claim 32, wherein the receiver receives an Internet Protocol (IP)_ADD message including information of the UE from the first DU.

34. The second DU of claim 33, wherein the IP_ADD message includes a new stream IDentifier (ID) and a sequence number.

35. The second DU of claim 32, wherein the second DU receives the request message and transmits the content only if the first DU does not currently cache the requested content.

36. The second DU of claim 32, wherein if the second DU does not currently cache the requested content, the second DU transmits the request message to a third DU comprising a DU geographically closest to the first DU other than the second DU.