METHOD AND APPARATUS FOR PROVIDING DYNAMICALLY CHANGED UPNP DESCRIPTION

• US 20080316941A1
• Filed: 06/23/2008
• Published: 12/25/2008
• Est. Priority Date: 06/22/2007
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: KRISHNAMOORTHY, Subramanian, JUNG, Dong-shin, VEDULA, Kiran Bharadwaj, SIDDAPUR CHANNAKESHAVA, Sreekanth
• Granted Patent: US 9,054,889 B2
• Time in Patent Office: Days
• US Class Current: 370/254
• CPC Class Codes: H04L 12/281 indicating a format for calling an appliance service function in a home automation network for remote control or remote monitoring of applications H04L67/025
• CPC Class Codes: H04L 12/2814 Exchanging control software or macros for controlling appliance services in a home automation network arrangements for maintenance or administration involving configuration of the network and network elements H04L41/08
• CPC Class Codes: H04L 12/6418 Hybrid transport
• CPC Class Codes: H04L 12/66 Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
• CPC Class Codes: H04L 41/0809 Plug-and-play configuration

Abstract

Provided is a method, medium and apparatus for providing a dynamically changed universal plug and play (UPnP) description. The method includes sensing a change of a service configuration of a device complying with a predetermined standard, updating a description including information about a service based on the change of the service configuration, and advertising that the description is updated. Thus, the service configuration is matched with the description and a control point can correctly control the device whose service configuration is changed.

Claims

1. A method of providing a description, the method comprising:

sensing a change of a service configuration of a device complying with a predetermined standard;

updating a description of information about a service based on the change of the service configuration; and

advertising that the description is updated.

2. The method of claim 1, wherein the advertising comprises:

multicasting an advertisement message for advertising an availability of the service to a network which complies with the predetermined standard; and

unicasting an address, including an updated description, in response to a request from a control point that received the advertisement message.

3. The method of claim 1, wherein the sensing comprises sensing the change of the service configuration of the device based on a state variable which indicates the change of the service configuration.

4. The method of claim 1, wherein the updating comprises:

obtaining the information about the service; and

reorganizing the obtained information based on a format of the description to generate an updated description.

5. The method of claim 1, further comprising:

installing a new protocol providing a new service in the device, or removing a protocol from the device by controlling the device,

wherein sensing the change of the service configuration comprises sensing the installation of the new protocol or the removal of the protocol.

6. The method of claim 1, further comprising revoking an advertisement performed prior to the updating the description.

7. The method of claim 1, wherein the predetermined standard is universal plug and play.

8. The method of claim 1, wherein the device is implemented on an open service gateway initiatives (OSGi) framework and the change of the service configuration is expressed by using a state of an OSGi service.

9. A computer-readable recording medium having recorded thereon a program for executing the method of claim 1.

10. An apparatus for providing a description, the apparatus comprising:

a sensing unit which senses a change of a service configuration of a device which complies with a predetermined standard;

a description updating unit which updates a description of information about a service based on the change of the service configuration; and

a communicating unit which advertises that the description is updated.

11. The apparatus of claim 10, wherein the communicating unit:

multicasts an advertisement message for informing a network of an availability of the service, the network complying with the predetermined standard, and

unicasts an address, including an updated description, in response to a request from a control point that received the advertisement message.

12. The apparatus of claim 10, wherein the sensing unit senses the change of the service configuration of the device by based on a state variable which indicates the change of the service configuration.

13. The apparatus of claim 10, wherein the description updating unit obtains the information about the service and reorganizes the obtained information based on a format of the description to generate, thus generating an updated description.

14. The apparatus of claim 10, further comprising a protocol managing unit which installs a new protocol, providing a new service, in the device or removes a protocol from the device by controlling the device,

wherein the service configuration is changed by installation or removal of the protocol.

15. The apparatus of claim 10, wherein the communicating unit revokes an advertisement performed before the description is updated.

16. The apparatus of claim 10, wherein the predetermined standard is universal plug and play.

17. The apparatus of claim 10, wherein the device is implemented on an open service gateway initiatives (OSGi) framework and the change of the service configuration is expressed by using a state of an OSGi service.