METHODS AND APPARATUS FOR SELECTION OF CONTENT DELIVERY NETWORK (CDN) BASED ON USER LOCATION

• US 20110131290A1
• Filed: 11/30/2009
• Published: 06/02/2011
• Est. Priority Date: 11/30/2009
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Hwang, Sung-Oh, Jung, Bo-Sun, KIM, Jun-Hyung, Keum, Ji-Eun, Park, Ho-Yeon
• Granted Patent: US 9,781,197 B2
• Time in Patent Office: Days
• US Class Current: 709/217
• CPC Class Codes: G06F 16/435 Filtering based on additional data, e.g. user or group profiles
• CPC Class Codes: H04L 65/1104 Session initiation protocol [SIP]
• CPC Class Codes: H04L 67/1021 based on client or server locations
• CPC Class Codes: H04L 67/306 User profiles
• CPC Class Codes: H04L 67/52 specially adapted for the location of the user terminal

Abstract

Methods and apparatus are provided for selecting a Content Delivery Network (CDN) for Internet Protocol (IP)-based services. A service request message is received from a user. The service request message includes user location information. The CDN is selected in accordance with the user location information. The service request message is transmitted to the CDN for connection of a corresponding delivery function module of the CDN to the user.

Claims

1. A method for selecting a Content Delivery Network (CDN) for Internet Protocol (IP)-based services at an IP controller, comprising the steps of:

receiving a service request message from a user, wherein the service request message comprises user location information;

selecting the CDN in accordance with the user location information; and

transmitting the service request message to the CDN for connection of a corresponding delivery function module of the CDN to the user.

2. The method of claim 1, wherein the service request message comprises a Session Initiation Protocol (SIP) header and an SIP body.

3. The method of claim 2, wherein the SIP body comprises a Session Description Protocol (SDP) payload providing requested service information and a schema providing the user location information.

4. The method of claim 3, wherein the schema defines at least one of a geocoordinate element and a Base Station Identifier (BSID) element for providing the user location information.

5. The method of claim 4, wherein the geocoordinate element expresses the user location information in latitudinal and longitudinal coordinates and the BSID element expresses the user location information in accordance with a corresponding Internet access point.

6. The method of claim 1, wherein selecting the CDN comprises:

extracting the user location information and requested service information from the service request message;

retrieving a user profile for the user from a server; and

authenticating the user for the requested service information using the user profile.

7. The method of claim 6, wherein selecting the CDN further comprises:

extracting an initial Filter Criteria (iFC) from the user profile;

filtering the user location information and the requested service information through the iFC; and

selecting a control function module and the CDN in accordance with the filtering results of the user location information and the requested service information with the iFC.

8. The method of claim 7, wherein the iFC comprises at least a user location based filtering parameter and an SIP Uniform Resource Identifier (URI) filtering parameter corresponding to the control function module and the corresponding CDN.

9. The method of claim 1, wherein selecting the CDN comprises selecting a CDN closest to the user location information from among a plurality of CDNs.

10. The method of claim 1, wherein the CDN selects the corresponding delivery function module in accordance with user location information.

11. The method of claim 10, wherein the corresponding delivery function module is selected as closest to the user location information from a plurality of delivery function modules in the CDN.

12. The method of claim 1, wherein the service request message comprises a Content on Demand (CoD) service request message.

13. The method of claim 1, wherein the IP-based services are provided in at least one of an Open Internet model and an IP Multimedia Subsystem (IMS)-based Managed model.

14. The method of claim 1, wherein the IP-based services comprise IP Television (TV) services.

15. A method for establishing a connection with a Content Delivery Network (CDN) at a User Equipment (UE) for Internet Protocol (IP)-based services, comprising the steps of:

transmitting a service request message to an IP controller, wherein the service request message comprises location information of the UE; and

establishing a connection with a delivery function module of the CDN selected by the IP controller in accordance with the location information for reception of a requested service.

16. A method for establishing a connection with a User Equipment (UE) at a Content Delivery Network (CDN) for Internet Protocol (IP)-based services, comprising the steps of

receiving a service request message at a control function module of the CDN, wherein the service request message comprises location information of the UE;

selecting a delivery function module of the CDN in accordance with the location information; and

establishing a connection between the UE and the selected delivery function module for transmission of a requested service.

17. An Internet Protocol (IP) controller for IP-based services comprising:

a receiver for receiving a service request message from a user, wherein the service request message comprises user location information;

a selection unit for selecting a Content Delivery Network (CDN) in accordance with the user location information; and

a transmitter for transmitting the service request message to the CDN for connection of a corresponding delivery function module of the CDN to the user.

18. The IP controller of claim 17, further comprising:

a user profile fetching unit for retrieving a user profile corresponding to the user;

an iFC extraction unit for extracting an iFC from the user profile;

a message/schema extracting unit for extracting service information and the user location information from the service request message; and

an iFC matching unit for filtering the service and user location information through the extracted iFC;

wherein the selection unit selects a control function module and the CDN in accordance with the filtering result.

19. A User Equipment (UE) for Internet Protocol (IP)-based services comprising:

a transmitter for transmitting a service request message to an IP controller, wherein the service request message comprises location information of the UE; and

a controller for establishing a connection with a delivery function module of a Content Delivery Network (CDN) selected by the IP controller in accordance with the location information for reception of a requested service.

20. A Content Delivery Network (CDN) for Internet Protocol (IP)-based services comprising:

a control function module for receiving a service request message, wherein the service request message comprises location information of a User Equipment (UE), and selecting a delivery function module of the CDN in accordance with the location information; and

a plurality of delivery function modules, wherein a connection is established between the UE and the selected delivery function module for transmission of a requested service.