METHOD AND SYSTEM FOR QUICK BLUETOOTH LOW ENERGY (BLE) PROTOCOL SIGNAL PRESENCE DETECTION FOR COEXISTENCE

• US 20100120362A1
• Filed: 11/10/2008
• Published: 05/13/2010
• Est. Priority Date: 11/10/2008
• Status: Active Grant

• Current Assignee: Avago Technologies International Sales Pte Limited (Broadcom, Inc.)
• Original Assignee: Broadcom Corporation (Broadcom, Inc.)
• Inventors: Walley, John S., Desai, Prasanna, Zhuang, Yuan, Hall, Steven, Ibrahim, Brima Babatunde
• Granted Patent: US 8,874,034 B2
• Time in Patent Office: Days
• US Class Current: 455/41.200
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks

Abstract

Aspects of the invention may comprise managing operations of BLE interfaces and/or other radio interfaces in a wireless device to mitigate interference to communication via the BLE interfaces by the other radio interfaces. Operating parameters may be communicated between the BLE interfaces and the other radio interfaces to enable mitigating the interference to the BLE interfaces, and at least some of the BLE interfaces and/or the other radio interfaces may be configured based on the communicated operating parameters. The operating parameters may comprise adaptive frequency hopping (AFH) maps that may be adjusted to prevent use of common and/or used channels. The communication device may detect energy associated with BLE communication via scan of all or some of channels used for BLE communication. BLE communication may be predicted based on monitoring of frequency bands used during BLE communication, and/or monitoring of events that may trigger and/or occur during BLE communication.

Claims

1. A method for communication, the method comprising:

in a communication device comprising one or more Bluetooth low energy (BLE) standard radio interfaces and one or more other radio interfaces;

determining which of said one or more other radio interfaces will interfere with operation of said one or more Bluetooth low energy (BLE) standard radio interfaces; and

managing operation of said one or more Bluetooth low energy (BLE) standard radio interfaces and/or said one or more other radio interfaces to mitigate said determined interference.

2. The method according to claim 1, comprising communicating operating parameters between said one or more Bluetooth low energy (BLE) standard radio interfaces and/or said one or more other radio interfaces.

3. The method according to claim 1, comprising configuring one or both of said one or more Bluetooth low energy (BLE) standard radio interfaces, and said one or more other radio interfaces based on said communicated operating parameters.

4. The method according to claim 1, comprising detecting energy associated with communication via said Bluetooth low energy (BLE) standard radio interfaces.

5. The method according to claim 4, comprising scanning one or more frequency bands utilized by said Bluetooth low energy (BLE) standard radio interfaces for said detection of said energy.

6. The method according to claim 4, comprising scanning a subset of one or more frequency bands utilized by said Bluetooth low energy (BLE) standard radio interfaces for said detection of said energy.

7. The method according to claim 6, comprising upon completion of said scanning of said subset of said one or more frequency bands, increasing a number of channels being scanned in a subsequent scan.

8. The method according to claim 1, comprising exchanging corresponding adaptive frequency hopping (AFH) maps between said one or more Bluetooth low energy (BLE) standard radio interfaces and said one or more other radio interfaces.

9. The method according to claim 8, comprising adjusting said corresponding adaptive frequency hopping (AFH) maps to enable or disable transmission and/or reception via one or both of said one or more Bluetooth low energy (BLE) standard radio, and said one or more other radio interfaces.

10. The method according to claim 1, comprising predicting Bluetooth low energy activity based on monitoring one or more channels utilized by said one or more Bluetooth low energy (BLE) standard radio interfaces.

11. The method according to claim 1, comprising predicting Bluetooth low energy activity based on monitoring one or more events communicated via said one or more Bluetooth low energy (BLE) standard radio interfaces.

12. A system for communication, the system comprising:

one or more circuits in a communication device that comprises one or more Bluetooth low energy (BLE) standard radio interfaces and one or more other radio interfaces;

said one or more circuits are operable to determine which of said one or more other radio interfaces will interfere with operation of said one or more Bluetooth low energy (BLE) standard radio interfaces; and

said one or more circuits are operable to manage operation of said one or more Bluetooth low energy (BLE) standard radio interfaces and/or said one or more other radio interfaces to mitigate said determined interference.

13. The system according to claim 12, wherein said one or more circuits are operable to communicate operating parameters between said one or more Bluetooth low energy (BLE) standard radio interfaces and/or said one or more other radio interfaces.

14. The system according to claim 12, wherein said one or more circuits are operable to configure one or both of said one or more Bluetooth low energy (BLE) standard radio interfaces, and said one or more other radio interfaces based on said communicated operating parameters.

15. The system according to claim 12, wherein said one or more circuits are operable to detect energy associated with communication via said Bluetooth low energy (BLE) standard radio interfaces.

16. The system according to claim 15, wherein said one or more circuits are operable to scan one or more frequency bands utilized by said Bluetooth low energy (BLE) standard radio interfaces for said detection of said energy.

17. The system according to claim 15, wherein said one or more circuits are operable to scan a subset of one or more frequency bands utilized by said Bluetooth low energy (BLE) standard radio interfaces for said detection of said energy.

18. The system according to claim 17, wherein said one or more circuits are operable to enable increase a number of channels being scanned in a subsequent scan upon completion of said scanning of said subset of said one or more frequency bands.

19. The system according to claim 12, wherein said one or more circuits are operable to exchange corresponding adaptive frequency hopping (AFH) maps between said one or more Bluetooth low energy (BLE) standard radio interfaces and said one or more other radio interfaces.

20. The system according to claim 19, wherein said one or more circuits are operable to adjust said corresponding adaptive frequency hopping (AFH) maps to enable or disable transmission and/or reception via one or both of said one or more Bluetooth low energy (BLE) standard radio, and said one or more other radio interfaces.

21. The system according to claim 12, wherein said one or more circuits are operable to predict Bluetooth low energy activity based on monitoring one or more channels utilized by said one or more Bluetooth low energy (BLE) standard radio interfaces.

22. The system according to claim 12, wherein said one or more circuits are operable to predict Bluetooth low energy activity based on monitoring one or more events communicated via said one or more Bluetooth low energy (BLE) standard radio interfaces.