COEXISTENCE MANAGEMENT SCHEME FOR MULTI-RADIO CO-EXISTENCE

• US 20120327869A1
• Filed: 06/18/2012
• Published: 12/27/2012
• Est. Priority Date: 06/23/2011
• Status: Abandoned Application

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Wang, Jibing, Linsky, Joel Benjamin
• Application Number:
  US13/525,901
• Publication Number:
  US 20120327869A1
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04W 52/243 taking into account interferences
• CPC Class Codes: H04W 52/38 TPC being performed in particular situations
• 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

Various aspects of the disclosure provide techniques to mitigate interference on a multi-radio device by adjusting operation of multiple radio access technologies (RATs) based on communication event combinations. A coexistence manager may create a table of communication event combinations of multiple RATs that may result in cross-RAT interference. The table may include one or more potential coexistence management schemes to be applied in the event a particular communication event combination occurs. When faced with a particular communication event combination the coexistence manager may then reference the table, and apply a corresponding coexistence management scheme.

Claims

1. A method for wireless communications for a multi-radio device, comprising:

analyzing an event combination of a first radio access technology (RAT) event and a second RAT event;

determining a desired power backoff to improve performance of the event combination;

recognizing an occurrence of the event combination; and

selectively applying the desired power backoff to the event combination.

2. The method of claim 1, in which the event combination comprises a plurality of events, each event comprising a communication operation and a frequency.

3. The method of claim 1, further comprising adjusting the desired power backoff.

4. The method of claim 3, in which adjusting the desired power backoff is based at least in part on communication timing of the first RAT and the second RAT.

5. The method of claim 1, in which the first RAT is Long Term Evolution (LTE) and the second RAT is Bluetooth.

6. The method of claim 5, in which the desired power backoff is applied to Bluetooth to reduce interference to LTE downlink when a Bluetooth transmission event overlaps in part with an LTE downlink sub-frame.

7. The method of claim 1, in which the desired power backoff is predetermined for the event combination.

8. An apparatus for wireless communications, comprising:

means for analyzing an event combination of a first radio access technology (RAT) event and a second RAT event;

means for determining a desired power backoff to improve performance of the event combination;

means for recognizing an occurrence of the event combination; and

means for selectively applying the desired power backoff to the event combination.

9. The apparatus of claim 8, in which the event combination comprises a plurality of events, each event comprising a communication operation and a frequency.

10. The apparatus of claim 8, further comprising means for adjusting the desired power backoff.

11. A computer program product for wireless communications, the computer program product comprising:

a non-transitory computer-readable medium having program code recorded thereon, the program code comprising;

program code to analyze an event combination of a first radio access technology (RAT) event and a second RAT event;

program code to determine a desired power backoff to improve performance of the event combination;

program code to recognize an occurrence of the event combination; and

program code to selectively apply the desired power backoff to the event combination.

12. The computer program product of claim 11, in which the event combination comprises a plurality of events, each event comprising a communication operation and a frequency.

13. The computer program product of claim 11, in which the program code further comprises program code to adjust the desired power backoff.

20. The apparatus of claim 13, in which the desired power backoff is predetermined for the event combination.

14. An apparatus for wireless communications, comprising:

a memory; and

at least one processor coupled to the memory, the at least one processor being configured;

to analyze an event combination of a first radio access technology (RAT) event and a second RAT event;

to determine a desired power backoff to improve performance of the event combination;

to recognize an occurrence of the event combination; and

to selectively apply the desired power backoff to the event combination.

15. The apparatus of claim 14, in which the event combination comprises a plurality of events, each event comprising a communication operation and a frequency.

16. The apparatus of claim 14 further comprising adjusting the desired power backoff.

17. The apparatus of claim 16 in which adjusting the desired power backoff is based at least in part on communication timing of the first RAT and the second RAT.

18. The apparatus of claim 14, in which the first RAT is Long Term Evolution (LTE) and the second RAT is Bluetooth.

19. The apparatus of claim 18, in which the desired power backoff is applied to Bluetooth to reduce interference to LTE downlink when a Bluetooth transmission event overlaps in part with an LTE downlink sub-frame.