Method and terminal for keeping subscriber identity module card in standby state

Patent metadata

Field	Value
Publication number	US-12028934-B2
Application number	US-202117490159-A
Country	US
Kind code	B2
Filing date	Sep 30, 2021
Priority date	Sep 27, 2012
Publication date	Jul 2, 2024
Grant date	Jul 2, 2024

Abstract

A method and a terminal device for keeping a subscriber identity module card in a standby state, including receiving an enabling request to enable dual standby of a first subscriber identity module (SIM) card and a second SIM card in the terminal device, wherein the first SIM card is software-implemented, and wherein the second SIM card is hardware-implemented, accessing a first network for the first SIM card by invoking a third-party interface of an operating system of the terminal and using a data file associated with the first SIM card, and implementing a dual standby of the first SIM card and the second SIM card.

First claim

The invention claimed is:

1. A method for keeping a first subscriber identity module (SIM) card and a second SIM card in a standby state, implemented by a terminal device, and comprising:
accessing a second network for the second SIM card using a second interface, wherein the second SIM card is implemented based on hardware;
receiving an enabling request, wherein the enabling request is configured for standby of the first SIM card in the terminal device, and wherein the first SIM card is implemented based on software;
invoking a third-party interface for performing a first network access process of the first SIM card based on a first data file associated with the first SIM card, wherein the third-party interface is different from the second interface; and
keeping the first SIM card and the second SIM card in simultaneous dual standby.

2. The method of claim 1 , wherein accessing the second network comprises:
receiving an authentication request from a network side device;
reading key information in a second data file associated with the second SIM card;
generating authentication information according to the key information; and
sending the authentication information to the network side device to complete accessing the second network for the second SIM card.

3. The method of claim 1 , wherein the first data file is stored in the terminal device or an external storage device connected to the terminal device.

4. The method of claim 1 , wherein the first data file is encrypted and saved, and wherein the method further comprises receiving a decryption key required for decrypting the first data file from a network side device.

5. The method of claim 1 , further comprising displaying a user interface of an application in order to manage the first SIM card.

6. The method of claim 5 , further comprising downloading the application from an application store.

7. The method of claim 5 , further comprising using the application to enable or disable the first SIM card.

8. The method of claim 1 , further comprising downloading the first data file over the air (OTA), through a short message or unstructured supplementary service data, and by visiting a web page or submitting a payment.

9. The method of claim 1 , wherein the third-party interface is an interface of an operating system.

10. The method of claim 1 , wherein invoking the third-party interface comprises invoking the third-party interface through a subscriber identity module mobile equipment (SIM-ME) function of the third-party interface.

11. A terminal device comprising:
a processor configured to execute program codes to cause the terminal device to:
access a second network for a second subscriber identity module (SIM) card using a second interface, wherein the second SIM card is implemented based on hardware;
receive an enabling request, wherein the enabling request is configured for standby of a first SIM card in the terminal device, and wherein the first SIM card is implemented based on software;
invoke a third-party interface for performing a first network access process of the first SIM card based on a first data file associated with the first SIM card, wherein the third-party interface is different from the second interface; and
keep the first SIM card and the second SIM card in simultaneous dual standby.

12. The terminal device of claim 11 , wherein the processor is further configured to execute the program codes to cause the terminal device to:
receive an authentication request from a network side device;
read key information in a second data file associated with the second SIM card;
generate authentication information according to the key information; and
send the authentication information to the network side device to complete accessing the second network for the second SIM card.

13. The terminal device of claim 11 , wherein the first data file is stored in the terminal device or an external storage device connected to the terminal device.

14. The terminal device of claim 11 , wherein the first data file is encrypted and saved, and wherein the processor is further configured to execute the program codes to cause the terminal device to receive a decryption key required for decrypting the first data file from a network side device.

15. The terminal device of claim 11 , wherein the processor is further configured to execute the program codes to cause the terminal device to display a user interface provided by an of an application in order to manage the first SIM card.

16. The terminal device of claim 15 , wherein the processor is further configured to execute the program codes to cause the terminal device to download the application from an application store.

17. The terminal device of claim 15 , wherein the processor is further configured to execute the program codes to cause the terminal device to use the application to enable or disable the first SIM card.

18. The terminal device of claim 11 , wherein the processor is further configured to execute the program codes to cause the terminal device to download the first data file over the air (OTA), through a short message or unstructured supplementary service data, and by visiting a web page or submitting a payment.

19. The terminal device of claim 11 , wherein the third-party interface is an interface of an operating system.

20. The terminal device of claim 11 , wherein the program codes further cause the terminal device to invoke the third-party interface through a subscriber identity module mobile equipment (SIM-ME) function of the third-party interface.

21. A non-transitory computer medium configured to store instructions that, when executed by a processor of a terminal device, cause the terminal device to:
access a second network for a second subscriber identity module (SIM) card using a second interface, wherein the second SIM card is implemented based on hardware;
receive an enabling request, wherein the enabling request is configured for standby of a first SIM card in the terminal device, and wherein the first SIM card is implemented based on software;
invoke a third-party interface for performing a first network access process of the first SIM card based on a first data file associated with the first SIM card, wherein the third-party interface is different from the second interface; and
keep the first SIM card and the second SIM card in simultaneous dual standby.

Assignees

• Huawei Tech Co Ltd

Inventors

• Bai Zhidong
• Zhu Chunxi
• Peng Chenghui
• Zhao Yuqing

Classifications

• H04W12/45

  using multiple identity modules · CPC title

• H04W8/183 Primary

  Processing at user equipment or user record carrier · CPC title

• H04W12/06

  Authentication · CPC title

• H04W8/22 Primary

  Processing or transfer of terminal data, e.g. status or physical capabilities · CPC title

• H04W88/06 Primary

  adapted for operation in multiple networks {or having at least two operational modes}, e.g. multi-mode terminals · CPC title