Method, system, and apparatus for network time and date determination

• US 8,437,749 B2
• Filed: 03/26/2010
• Issued: 05/07/2013
• Est. Priority Date: 03/26/2010
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Kashikar, Anand Devidas
• Primary Examiner(s): Cumming, William D
• Application Number:
  US12/732,713
• Publication Number:
  US 20110237237A1
• Time in Patent Office: 1,138 Days
• Field of Search: 368/10, 368/21, 455/419
• US Class Current: 455/419
• CPC Class Codes: G04R 20/06 Decoding time data; Circuits therefor
• CPC Class Codes: H04M 1/72457 according to geographic location
• CPC Class Codes: H04M 2250/10 including a GPS signal receiver

Abstract

A wireless device searches for a network to establish a connection, and, when a network is found, the wireless device attempts to establish a connection. The wireless device receives a PLMN code from the network. The wireless device receives the current GMT time from a GPS satellite. The wireless device determines the time zone that the wireless device is located in using the PLMN code. The wireless device determines the daylight saving time settings using the PLMN code and/or the GMT time. The wireless device determines the current time and date for the present location of the wireless device using the received GMT time and the determined time zone and day light saving time settings. The wireless device is updated to reflect the current time, date, time zone, and daylight saving settings.

Claims

1. A method for determining time and date on a wireless device, comprising:

receiving a public land mobile network code from a wireless network at the wireless device;

in response to determining that the wireless device cannot establish a service connection with the wireless network;

(i) receiving a Greenwich Mean Time (GMT) time from at least one global positioning system (GPS) satellite at the wireless device;

(ii) determining a time zone applicable to the wireless device using at least one portion of the public land mobile network code;

(iii) determining a daylight saving time setting applicable to the wireless device using the received GMT time and the at least one portion of the public land mobile network code; and

(iv) determining a current time and date of the wireless device using the GMT time, the time zone, and the daylight saving time setting; and

updating the wireless device with the current time and date.

2. The method of claim 1, wherein the at least one portion of the public land mobile network code is a mobile country code (MCC).

3. The method of claim 1, wherein the at least one portion of the public land mobile network code is a mobile network code (MNC).

4. The method of claim 1, wherein the public land mobile network code includes a mobile country code (MCC) and a mobile network code (MNC), wherein the MCC and the MNC are used to determine at least one of the time zone or the daylight saving time setting.

5. The method of claim 1, further comprising searching for the wireless network in response to activating the wireless device.

6. The method of claim 1, wherein the wireless device includes a database storing information including a mobile country code (MCC), a mobile network code (MNC), a Greenwich Mean Time (GMT) time, a time zone, a daylight saving setting, an operator name, and a coding type.

7. The method of claim 1, wherein updating the wireless device with the current time and date includes updating one or more applications of the wireless device with the current time and date.

8. The method of claim 1, wherein the wireless network is at least one of a Global System for Mobile Communications (GSM) network or a Universal Mobile Telecommunications System (UMTS) network.

9. The method of claim 1, wherein the wireless device is a cellular device.

10. A system for determining time and date on a wireless device, comprising:

a wireless network; and

a wireless device;

wherein the wireless device receives a public land mobile network code from the wireless network;

wherein in response to determining that the wireless device cannot establish a service connection with the wireless network, the wireless device;

(i) receives a Greenwich Mean Time (GMT) time from at least one global positioning system (GPS) satellite;

(ii) determines a time zone applicable to the wireless device using at least one portion of the public land mobile network code;

(iii) determines a daylight saving time setting applicable to the wireless device using the received GMT time and the at least one portion of the public land mobile network code; and

(iv) determines a current time and date of the wireless device using the GMT time, the time zone, and the daylight saving time setting; and

wherein the wireless device updates a user interface of the wireless device with the current time and date.

11. The system of claim 10, wherein the at least one portion of the public land mobile network code is a mobile country code (MCC).

12. The system of claim 10, wherein the wireless device includes a database storing information including a mobile country code (MCC), a mobile network code (MNC), a GMT time, a time zone, a daylight saving setting, an operator name, and a coding type.

13. The system of claim 10, wherein the wireless device updates one or more applications of the wireless device with the current time and date.

14. The system of claim 10, wherein the wireless network is a Global System for Mobile Communications (GSM) network.

15. The system of claim 10, wherein the wireless network is a Universal Mobile Telecommunications System (UMTS) network.

16. The system of claim 10, wherein the public land mobile network code includes a mobile country code (MCC) and a mobile network code (MNC), wherein the MCC and the MNC are used to determine at least one of the time zone or the daylight saving time setting.

17. A wireless device, comprising:

a receiver to receive wireless signals;

a processor coupled to the receiver, the processor to;

receive a public land mobile network code from a wireless network via the receiver;

in response to determining that the wireless device cannot establish a service connection with the wireless network;

(i) receive a Greenwich Mean Time (GMT) time from at least one global positioning system (GPS) satellite via the receiver;

(ii) determine a time zone applicable to the wireless device using at least one portion of the public land mobile network code;

(iii) determine a daylight saving time setting applicable to the wireless device using the GMT time and the at least one portion of the public land mobile network code; and

(iv) determine a current time and date of the wireless device using GMT time, the time zone, and the daylight saving time setting;

a memory which stores the public land mobile network code, the GMT time, the time zone, the daylight saving time setting, and the current time and date; and

a display device to present the current time and date.

18. The wireless device of claim 17, wherein the public land mobile network code includes a mobile country code (MCC) and a mobile network code (MNC), wherein the MCC and the MNC are used to determine at least one of the time zone or the daylight saving time setting.

19. The wireless device of claim 18, wherein the processor updates one or more applications stored in the memory with the current time and date.

20. The wireless device of claim 19, wherein the wireless network is at least one of a Global System for Mobile Communications (GSM) network or a Universal Mobile Telecommunications System (UMTS) network.