METHOD OF SETTING RADIO ACCESS CAPABILITY IN A WIRELESS COMMUNICATIONS SYSTEM AND RELATED COMMUNICATION DEVICE

• US 20100144307A1
• Filed: 12/08/2009
• Published: 06/10/2010
• Est. Priority Date: 12/08/2008
• Status: Active Grant

• Current Assignee: HTC Corporation
• Original Assignee: HTC Corporation
• Inventors: Wu, Chih-Hsiang
• Granted Patent: US 8,289,926 B2
• Time in Patent Office: Days
• US Class Current: 455/404.100
• CPC Class Codes: H04W 4/90 Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
• CPC Class Codes: H04W 48/18 Selecting a network or a communication service
• CPC Class Codes: H04W 76/18 Management of setup rejection or failure
• CPC Class Codes: H04W 76/50 for emergency connections

Abstract

A method of setting radio access capability for a mobile device capable of a plurality of radio access technologies includes utilizing a first one of the radio access technologies to send subscribing information of the mobile device to a network, receiving a reject message corresponding to the subscribing information from the network, selecting a second radio access technology from the plurality of radio access technologies, and sending the subscribing information according to the second radio access technology.

Claims

1. A method of setting radio access capability for a mobile device capable of a plurality of radio access technologies (RATs), the method comprising:

utilizing a first RAT of the plurality of RATs to send subscribing information of the mobile device to a network;

receiving a reject message corresponding to the subscribing information from the network;

selecting a second RAT from the plurality of RATs; and

sending the subscribing information according to the second RAT.

2. The method of claim 1, wherein the subscribing information of the mobile device includes at least one of a mobile identity, a LOCATION UPDATING REQUEST message, a ROUTING AREA UPDATE REQUEST message, an ATTACH REQUEST message, a TRACKING AREA UPDATE REQUEST message and a SERVICE REQUEST message;

and the reject message is a LOCATION UPDATING REJECT message, a ROUTING AREA UPDATE REJECT message, an ATTACH REJECT message, a TRACKING AREA UPDATE REJECT message, or a SERVICE REJECT message; and

the reject message comprises at least of a cause of “

Illegal MS”

, “

Illegal ME”

, “

GPRS services not allowed”

, and “

GPRS services and non-GPRS services not allowed”

.

3. The method of claim 1 further comprising requesting the network for a call establishment utilizing the second RAT.

4. The method of claim 1 further comprising disabling capability of the first RAT when the reject message is received from the network.

5. The method of claim 4 further comprising utilizing the second RAT to send capability information to the network after the capability of the first RAT is disabled, wherein the capability information indicates that capability of the first RAT is removed.

6. A communication device of a wireless communication system for accurately setting radio access capability (RAT), the communication device comprising:

means for sending subscribing information of the communication device to a network according to a first RAT of a plurality of RATs supported by the communication device; and

means for receiving a reject message corresponding to the subscribing information from the network;

means for selecting a second RAT from the plurality of RATs; and

means for sending the subscribing information according to the second RAT.

7. The communication device of claim 6, wherein the subscribing information of the communication device includes at least one of a mobile identity, a LOCATION UPDATING REQUEST, a ROUTING AREA UPDATE REQUEST message, an ATTACH REQUEST message, a TRACKING AREA UPDATE REQUEST message, and a SERVICE REQUEST message.

8. The communication device of claim 6, wherein the reject message is a LOCATION UPDATING REJECT, a ROUTING AREA UPDATE REJECT message, an ATTACH REJECT message, a TRACKING AREA UPDATE REJECT message, or a SERVICE REJECT message;

and the reject message comprises at least of a cause of “

Illegal MS”

, “

Illegal ME”

, “

GPRS services not allowed”

, and “

GPRS services and non-GPRS services not allowed”

.

9. The communication device of claim 6 further comprising means for requesting the network for an emergency call establishment utilizing the second RAT.

10. The communication device of claim 6 further comprising means for disabling capability of the first RAT when the reject message is received from the network.

11. The communication device of claim 10 further comprising means for utilizing the second RAT to send capability information to the network after the capability of the first RAT is disabled, wherein the capability information indicates that capability of the first RAT is removed.

12. A method of setting radio access capability for a mobile device capable of a plurality of radio access technologies (RATs), the method comprising:

utilizing a first RAT of the plurality of RATs to send subscribing information of the mobile device to a network; and

disabling capability of one of the plurality of RATs when a reject message corresponding to the subscribing information is received from the network.

13. The method of claim 12, wherein the subscribing information of the mobile device includes at least one of a mobile identity, a LOCATION UPDATING REQUEST, an ATTACH REQUEST message, a TRACKING AREA UPDATE REQUEST message and a SERVICE REQUEST message;

and the reject message is a LOCATION UPDATING REJECT, an ATTACH REJECT message, a TRACKING AREA UPDATE REJECT message or a SERVICE REJECT message; and

the reject message comprises at least of a cause of “

Illegal MS”

, “

Illegal ME”

, “

GPRS services not allowed”

, and “

GPRS services and non-GPRS services not allowed”

.

14. The method of claim 12 further comprising utilizing a second RAT of the plurality of RATs to send capability information to the network, wherein the second RAT is not the disabled RAT and the capability information indicates that capability of the first RAT is removed.

15. The method of claim 14 further comprising requesting the network for a call establishment utilizing the second RAT.

16. A communication device of a wireless communication system for accurately setting radio access capability (RAT), the communication device comprising:

means for sending subscribing information of the communication device to a network according to a first RAT of a plurality of RATs supported by the communication device; and

means for disabling capability of one of the plurality of RATs when a reject message corresponding to the subscribing information is received from the network.

17. The communication device of claim 16, wherein the subscribing information of the mobile device includes at least one of a mobile identity, a LOCATION UPDATING REQUEST, a ROUTING AREA UPDATE REQUEST message, an ATTACH REQUEST message, a TRACKING AREA UPDATE REQUEST message and a SERVICE REQUEST message.

18. The communication device of claim 16, wherein the reject message is a LOCATION UPDATING REJECT, a ROUTING AREA UPDATE REJECT message, an ATTACH REJECT message, a TRACKING AREA UPDATE REJECT message or a SERVICE REJECT message;

and the reject message comprises at least of a cause of “

Illegal MS”

, “

Illegal ME”

, “

GPRS services not allowed”

, and “

GPRS services and non-GPRS services not allowed”

.

19. The communication device of claim 16 further comprising means for utilizing a second RAT of the plurality of RATs to send capability information to the network, wherein the second RAT is not the disabled RAT and the capability information indicates that capability of the first RAT is removed.

20. The method of claim 19 further comprising means for requesting the network for a call establishment utilizing the second RAT.