Method and apparatus to facilitate support for multi-radio coexistence

• US 8,724,545 B2
• Filed: 08/05/2010
• Issued: 05/13/2014
• Est. Priority Date: 03/31/2010
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Dayal, Pranav, Mantravadi, Ashok, Agashe, Parag Arun, Kadous, Tamer Adek
• Primary Examiner(s): CHO, HONG SOL
• Application Number:
  US12/851,302
• Publication Number:
  US 20110243094A1
• Time in Patent Office: 1,377 Days
• Field of Search: 370328-331, 370/338
• US Class Current: 370/328
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks
• CPC Class Codes: H04W 72/1215 for collaboration of different radio technologies
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Abstract

A method of wireless communication includes identifying at least one current resource for which a coexistence issue is present. The method also includes submitting a message to a base station that includes information indicative of the coexistence issue for the current resource(s). The handover request may include information indicative of the resource for which the coexistence issue is present and/or a desired future resource.

Claims

1. A method for wireless communication, the method comprising:

identifying a first radio access technology (RAT) of a user equipment (UE) for which a coexistence issue with a second RAT of the UE is measured as present; and

submitting a handover request message to a base station that includes information indicative of the coexistence issue for at least one currently utilized resource of the first RAT, the information including a black list of at least one communication resource for which the coexistence issue is measured as present in the first RAT and a white list of at least one communication resource for which the coexistence issue is measured as not present in the first RAT.

2. The method of claim 1, in which the information includes an indication of at least one desired future resource.

3. The method of claim 1, in which the handover request message comprises a request for at least one of an inter-frequency handover and an inter-Radio Access Technology (inter-RAT) handover.

4. The method of claim 1, in which the handover request message further comprises-a request to handover to a communication resource in the white list.

5. The method of claim 1, further comprising submitting a second message indicating a previous coexistence issue is no longer present.

6. An apparatus operable in a wireless communication system, the apparatus comprising:

means for identifying a first radio access technology (RAT) of a user equipment (UE) for which a coexistence issue with a second RAT of the UE is measured as present; and

means for submitting a handover request message to a base station that includes information indicative of the coexistence issue for at least one currently utilized resource of the first RAT, the information including a black list of at least one communication resource for which the coexistence issue is measured as present in the first RAT and a white list of at least one communication resource for which the coexistence issue is measured as not present in the first RAT.

7. The apparatus of claim 6, in which the information includes an indication of at least one desired future resource.

8. The apparatus of claim 6, wherein the handover request message comprises a request for at least one of an inter-frequency handover and an inter-Radio Access Technology (inter-RAT) handover.

9. A computer program product, comprising:

a computer-readable medium comprising;

code to identify a first radio access technology (RAT) of a user equipment (UE) for which a coexistence issue with a second RAT of the UE is measured as present; and

code to submit a handover request message to a base station that includes information indicative of the coexistence issue for at least one currently utilized resource of the first RAT, the information including a black list of at least one communication resource for which the coexistence issue is measured as present in the first RAT and a white list of at least one communication resource for which the coexistence issue is measured as not present in the first RAT.

10. The computer program product of claim 9, in which the information includes an indication of at least one desired future resource.

11. The computer program product of claim 9, wherein the handover request message comprises a request for at least one of an inter-frequency handover and an inter-Radio Access Technology (inter-RAT) handover.

12. The computer program product of claim 9, further comprising code to send a second message indicating a previous coexistence issue is no longer present.

13. An apparatus operable in a wireless communication system, the apparatus comprising:

a processor, configured to;

a first radio access technology (RAT) of a user equipment (UE) for which a coexistence issue with a second RAT of the UE is measured as present, and

to submit a handover request message to a base station that includes information indicative of the coexistence issue for at least one currently utilized resource of the first RAT, the information including a black list of at least one communication resource for which the coexistence issue is measured as present in the first RAT and a white list of at least one communication resource for which the coexistence issue is measured as not present in the first RAT, and

a memory coupled to the processor for storing data.

14. The apparatus of claim 13, in which the information includes an indication of at least one desired future resource.

15. The apparatus of claim 13, wherein the handover request message comprises a request for at least one of an inter-frequency handover and an inter-Radio Access Technology (inter-RAT) handover.

16. The apparatus of claim 13, in which the processor is further configured to send a second message indicating a previous coexistence issue is no longer present.

17. The apparatus of claim 13, in which the handover request message further comprises a request to handover to a communication resource in the white list.

18. A method of wireless communication, the method comprising:

receiving a handover request message from a User Equipment (UE), the handover request message including information indicating a coexistence issue measured as present with a second radio access technology (RAT) for a currently utilized resource of a first RAT of the UE, the information including a black list of at least one communication resource for which the coexistence issue is measured as present in the first RAT and a white list of at least one communication resource for which the coexistence issue is measured as not present in the first RAT; and

deciding, based on the received handover request message, whether to continue using the currently utilized resource in communications with the UE.

19. The method of claim 18, further comprising granting a handover based on the received message.

20. The method of claim 18, in which the information includes at least one desired future resource.

21. The method of claim 18, further comprising receiving a message from the UE comprising an indication that a previous coexistence issue is no longer present.

22. The method of claim 18, in which the handover request message further comprises a request to handover to a communication resource in the white list.

23. A system for wireless communication, the system comprising:

means for receiving a handover request message from a User Equipment (UE), the handover request message including information indicating a coexistence issue measured as present with a second radio access technology (RAT) for a currently utilized resource of a first RAT of the UE, the information including a black list of at least one communication resource for which the coexistence issue is measured as present in the first RAT and a white list of at least one communication resource for which the coexistence issue is measured as not present in the first RAT; and

means for deciding, based on the received handover request message, whether to continue using the currently utilized resource in communications with the UE.

24. A system for wireless communication, the system comprising:

a memory; and

a processor coupled to the memory and configured;

to receive a handover request message from a User Equipment (UE), the handover request message including information indicating a coexistence issue measured as present with a second radio access technology (RAT) for a currently utilized resource of a first RAT of the UE, the information including a black list of at least one communication resource for which the coexistence issue is measured as present in the first RAT and a white list of at least one communication resource for which the coexistence issue is measured as not present in the first RAT; and

to decide, based on the received handover request message, whether to continue using the currently utilized resource in communications with the UE.

25. A computer program tangibly stored on a computer readable medium for wireless communication, the medium comprising:

code to receive a handover request message from a User Equipment (UE), the handover request message including information indicating a coexistence issue measured as present with a second radio access technology (RAT) for a currently utilized resource of a first RAT of the UE, the information including a black list of at least one communication resource for which the coexistence issue is measured as present in the first RAT and a white list of at least one communication resource for which the coexistence issue is measured as being not present in the first RAT; and

code to decide, based on the received handover request message, whether to continue using the currently utilized resource in communications with the UE.