SYSTEM FOR SUPPORTING OVER-THE-AIR SERVICE AND METHOD THEREOF

• US 20110007899A1
• Filed: 06/18/2008
• Published: 01/13/2011
• Est. Priority Date: 06/22/2007
• Status: Active Grant

• Current Assignee: KT Corporation
• Original Assignee: KT Corporation
• Inventors: Yang, Tae Joon, Lee, Ki Jeong, Park, Young Chual
• Granted Patent: US 9,325,668 B2
• Time in Patent Office: Days
• US Class Current: 380/270
• CPC Class Codes: H04L 63/0428 wherein the data content is protected, e.g. by encrypting or encapsulating the payload
• CPC Class Codes: H04W 4/50 Service provisioning or reconfiguring

Abstract

Disclosed herein is a system and method for providing Over-The-Air (OTA) service. The system according to the present invention includes an OTA server for, when OTA data is requested by a mobile terminal, encrypting the requested OTA data using a preset OTA key depending on the type of the requested OTA data, and creating a message for providing the encrypted OTA data; and a message center for receiving the created message, and sending the created message to the mobile terminal.

Claims

1. A system for providing Over-The-Air (OTA) service, comprising:

an OTA server for, when OTA data is requested by a mobile terminal, encrypting the requested OTA data using a preset OTA key depending on a type of the requested OTA data, and creating a message for providing the encrypted OTA data; and

a message center for receiving the created message, and sending the created message to the mobile terminal.

2. The system according to claim 1, wherein the OTA server:

if the requested OTA data is a first type of OTA data, encrypts the first type of OTA data using a first type of OTA key, and creates a message including a first type of encrypted OTA data; and

if the requested OTA data is a second type of OTA data, encrypts the second type of OTA data using a second type of OTA key, and creates a message including a second type of encrypted OTA data.

3. The system according to claim 2, wherein the OTA server:

if the requested OTA data is a second type of OTA data, primarily encrypts the second type of OTA data using the second type of OTA key, secondarily encrypts a second type of primarily encrypted OTA data using the first type of OTA key, and creates a message including a second type of secondarily encrypted OTA data.

4. The system according to claim 2, wherein the first type of OTA data is terminal information related to the mobile terminal, and the second type of OTA data is an applet and personal information related to the applet for use of an additional service.

5. The system according to claim 1, wherein the message center is any one of a Short Message Service Center (SMSC), a Long Message Service Center (LMSC), and a Multimedia Message Service Center (MMSC).

6. The system according to claim 1, further comprising a database for assembling and managing at least one piece of OTA data to be installed or stored in a smart card which operates in conjunction with the mobile terminal.

7. A smart card comprising:

a first processing unit for receiving OTA data from a mobile terminal, decrypting the received OTA data using a first type of OTA key, and determining whether to process a first type of extracted OTA data; and

a second processing unit for receiving the first type of OTA data depending on results of the determination, decrypting the first type of OTA data using a second type of OTA key, and processing a second type of extracted OTA data.

8. The smart card according to claim 7, wherein the first processing unit:

decrypts the OTA data using the first type of OTA key, and installs or stores the first type of OTA data in a first storage unit if the first type of OTA data has not been encrypted; and

sends the first type of OTA data to the second processing unit if the first type of OTA data extracted using the first type of OTA key has been encrypted.

9. The smart card according to claim 7, wherein a USIM/SIM Application Toolkit (USAT) framework is applied to the first processing unit and a Global Platform (GP) framework is applied to the second processing unit.

10. The smart card according to claim 7, wherein the smart card is any one of a Subscriber Identification Module (SIM) card, a Universal Subscriber Identification Module (USIM) card, a User Identification Module (UIM) card and a Removable User Identification Module (RUIM) card, which is capable of being installed in or detachably attached to the mobile terminal.

11. A method of providing OTA service, comprising:

checking a type of the OTA data when OTA data is requested by a mobile terminal;

encrypting the OTA data using a preset OTA key and then creating a message for providing the encrypted OTA data depending on results of the determination; and

sending the created message to the mobile terminal.

12. The method according to claim 11, wherein the creation of the message comprises:

encrypting the first type of OTA data using a first type of OTA key if the requested OTA data is a first type of OTA data and creating a message including a first type of encrypted OTA data; and

primarily encrypting the second type of OTA data using a second type of OTA key, secondarily encrypting a second type of primarily encrypted OTA data using the first type of OTA key if the requested OTA data is a second type of OTA data, and creating a message including a second type of secondarily encrypted OTA data.

13. A method of providing OTA service, comprising:

decrypting the OTA data using a first type of OTA key when OTA data is received from a mobile terminal, and determining whether to process a first type of extracted OTA data; and

decrypting the first type of OTA data using a second type of OTA key depending on results of the determination, and then processing a second type of extracted OTA data.

14. The method according to claim 13, wherein the determination of whether to process the first type of OTA data comprises:

encrypting the OTA data and extracting a first type of OTA data when the OTA data is received from the mobile terminal; and

determining whether to process a first type of extracted OTA data depending on whether the first type of extracted OTA data has been encrypted.

15. The method according to claim 14, wherein the processing of the second type of OTA data comprises:

decrypting the first type of OTA data using a second type of OTA key if the first type of OTA data has been encrypted and processing a second type of extracted OTA data.