Systems and methods for providing collaborative coexistence between bluetooth and Wi-Fi

• US 9,326,310 B2
• Filed: 04/04/2014
• Issued: 04/26/2016
• Est. Priority Date: 04/10/2007
• Status: Active Grant

• Current Assignee: Marvell Asia Pte Limited (Marvell Technology Group Limited)
• Original Assignee: Marvell World Trade Limited (Marvell Technology Group Limited)
• Inventors: Zhang, Zhenyu, Jan, James Kang-Wuu, Yuan, Shuangqing, Zhou, Cuifeng, Lee, George
• Primary Examiner(s): Maung, Nay A
• Assistant Examiner(s): PEREZ, ANGELICA
• Application Number:
  US14/245,265
• Publication Number:
  US 20140220898A1
• Time in Patent Office: 753 Days
• Field of Search: 455/41.2, 455/552.1
• US Class Current: 1/1
• CPC Class Codes: H04B 17/309 Measuring or estimating channel quality parameters
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks
• CPC Class Codes: H04W 24/08 Testing, supervising or monitoring using real traffic
• CPC Class Codes: H04W 28/18 Negotiating wireless communication parameters
• CPC Class Codes: H04W 4/80 Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
• CPC Class Codes: H04W 76/16 Involving different core network technologies, e.g. a packet-switched [PS] bearer in combination with a circuit-switched [CS] bearer
• CPC Class Codes: H04W 84/18 Self-organising networks, e.g. ad-hoc networks or sensor networks
• 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

Methods and systems are described for providing Bluetooth and Wi-Fi coexistence on an electronic device. Aspects of exemplary embodiments include determining Bluetooth link parameters for a Bluetooth connection and Wi-Fi link parameters for a Wi-Fi connection. Also, a Bluetooth path loss for the Bluetooth connection and a Wi-Fi path loss for the Wi-Fi connection can be determined. According to this embodiment, one or more link conditions, based upon one or more of the Bluetooth link parameters, the Wi-Fi link parameters, the Bluetooth path loss, and the Wi-Fi path loss, may be calculated to determine if simultaneous collaboration between the Bluetooth connection and Wi-Fi connection is feasible. In response to simultaneous collaboration being feasible, the Bluetooth link parameters and the Wi-Fi link parameters are customized based on the one or more link conditions to permit simultaneous collaboration between the Bluetooth connection and the Wi-Fi connection.

Claims

1. A method for managing a Bluetooth connection and a Wi-Fi connection, wherein the Wi-Fi connection exists between a communication device and a Wi-Fi access point, the method comprising:

determining, at the communication device, a plurality of signal quality metrics corresponding to the Bluetooth connection and the Wi-Fi connection;

determining, at the communication device and using the plurality of signal quality metrics, whether simultaneous communication via the Bluetooth connection and the Wi-Fi connection with acceptable performance levels can be achieved;

in response to determining that simultaneous-communication with acceptable performance levels can be achieved, altering at least one link parameter among a plurality of link parameters to permit communication via the Bluetooth connection and the Wi-Fi connection at acceptable performance levels, including

instructing, at the communication device, a user to move away from the Wi-Fi access point; and

in response to determining that simultaneous transmission with acceptable performance levels cannot be achieved, implementing exclusive transmission to allow coexistence between the Bluetooth connection and the Wi-Fi connection including causing the Wi-Fi access point to refrain from transmitting during a transmission via the Bluetooth connection.

2. The method of claim 1, wherein determining the plurality of signal quality metrics comprises:

determining, at the communication device, a metric corresponding to received signal quality at the Wi-Fi access point.

3. The method of claim 1, wherein determining the plurality of signal quality metrics comprises:

determining, at the communication device, a metric corresponding to received signal quality at a Bluetooth peer device.

4. The method of claim 1, wherein altering at least one link parameter to permit communication via the Bluetooth connection and the Wi-Fi connection at acceptable performance levels comprises:

altering a transmit power level of the communication device.

5. The method of claim 1, wherein altering at least one link parameter to permit communication via the Bluetooth connection and the Wi-Fi connection at acceptable performance levels comprises:

causing, at the communication device, a Bluetooth peer device to change a transmit power level corresponding to the Bluetooth connection.

6. The method of claim 1, wherein altering at least one link parameter to permit communication via the Bluetooth connection and the Wi-Fi connection at acceptable performance levels comprises:

causing, at the communication device, the Wi-Fi access point to change a channel corresponding to the Wi-Fi connection.

7. The method of claim 1, wherein causing the Wi-Fi access point to refrain from transmitting during the transmission via the Bluetooth connection comprises:

transmitting, from the communication device, a clear-to-send-to-self signal via the Wi-Fi connection.

8. The method of claim 1, wherein causing the Wi-Fi access point to refrain from transmitting during the transmission via the Bluetooth connection comprises:

transmitting, from the communication device, a signal to the Wi-Fi access point, the signal indicating that the communication device is in a power-saving or sleep mode.

9. The method of claim 1, wherein implementing exclusive transmission to allow coexistence between the Bluetooth connection and the Wi-Fi connection further includes:

arbitrating, at the communication device, between i) Wi-Fi communications via the Wi-Fi connection and ii) Bluetooth communications via the Bluetooth connection based on priorities associated with Wi-Fi data and priorities associated with Bluetooth data.

10. A communication device, comprising:

a front end device configured to permit simultaneous communication via a Bluetooth connection and a Wi-Fi connection with a Wi-Fi access point; and

a processor device configured to;

determine a plurality of signal quality metrics corresponding to the Bluetooth connection and the Wi-Fi connection,

determine, using the plurality of signal quality metrics, whether simultaneous communication via the Bluetooth connection and the Wi-Fi connection with acceptable performance levels can be achieved,

in response to determining that simultaneous-communication with acceptable performance levels can be achieved, alter at least one link parameter among a plurality of link parameters to permit communication via the Bluetooth connection and the Wi-Fi connection at acceptable performance levels, including

causing the communication device to instruct a user to move away from the Wi-Fi access point to permit communication via the Bluetooth connection and the Wi-Fi connection at acceptable performance levels, and

in response to determining that simultaneous transmission with acceptable performance levels cannot be achieved, implement exclusive transmission to allow coexistence between the Bluetooth connection and the Wi-Fi connection including causing the Wi-Fi access point to refrain from transmitting during a transmission via the Bluetooth connection.

11. The communication device of claim 10, wherein the processor is configured to:

determine a metric corresponding to received signal quality at the Wi-Fi access point, and

use the metric corresponding to received signal quality at the Wi-Fi access point to determine whether simultaneous communication via the Bluetooth connection and the Wi-Fi connection with acceptable performance levels can be achieved.

12. The communication device of claim 10, wherein the processor is configured to:

determine a metric corresponding to received signal quality at a Bluetooth peer device, and

use the metric corresponding to received signal quality at a Bluetooth peer device to determine whether simultaneous communication via the Bluetooth connection and the Wi-Fi connection with acceptable performance levels can be achieved.

13. The communication device of claim 10, wherein the processor is configured to:

alter a transmit power level of the communication device to permit communication via the Bluetooth connection and the Wi-Fi connection at acceptable performance levels.

14. The communication device of claim 10, wherein the processor is configured to:

cause a Bluetooth peer device to change a transmit power level corresponding to the Bluetooth connection to permit communication via the Bluetooth connection and the Wi-Fi connection at acceptable performance levels.

15. The communication device of claim 10, wherein the processor is configured to:

cause the Wi-Fi access point to change a channel corresponding to the Wi-Fi connection to permit communication via the Bluetooth connection and the Wi-Fi connection at acceptable performance levels.

16. The communication device of claim 10, wherein the processor is configured to:

cause the communication device to transmit a clear-to-send-to-self signal via the Wi-Fi connection to cause the Wi-Fi access point to refrain from transmitting during the transmission via the Bluetooth connection.

17. The communication device of claim 10, wherein the processor is configured to:

cause the communication device to transmit a signal to the Wi-Fi access point, the signal indicating that the communication device is in a power-saving or sleep mode, to cause the Wi-Fi access point to refrain from transmitting during the transmission via the Bluetooth connection.

18. The communication device of claim 10, further comprising:

an arbiter device configured to arbitrate access to the front end device between i) Wi-Fi communications via the Wi-Fi connection and ii) Bluetooth communications via the Bluetooth connection based on priorities associated with Wi-Fi data and priorities associated with Bluetooth data.

19. A tangible, non-transitory computer readable medium storing instructions that, when executed by a processor, cause the processor to:

determine a plurality of signal quality metrics corresponding to a Bluetooth connection and a Wi-Fi connection between i) a communication device including the processor and ii) a Wi-Fi access point;

determining, using the plurality of signal quality metrics, whether simultaneous communication via the Bluetooth connection and the Wi-Fi connection with acceptable performance levels can be achieved;

in response to determining that simultaneous-communication with acceptable performance levels can be achieved, altering at least one link parameter among a plurality of link parameters to permit communication via the Bluetooth connection and the Wi-Fi connection at acceptable performance levels, including

causing the communication device to instruct a user to move away from the Wi-Fi access point to permit communication via the Bluetooth connection and the Wi-Fi connection at acceptable performance levels; and

in response to determining that simultaneous transmission with acceptable performance levels cannot be achieved, implementing exclusive transmission to allow coexistence between the Bluetooth connection and the Wi-Fi connection including causing the Wi-Fi access point to refrain from transmitting during a transmission via the Bluetooth connection.

20. The computer readable medium of claim 19, further storing instructions that, when executed by the processor, cause the processor to:

determine a metric corresponding to received signal quality at the Wi-Fi access point; and

use the metric corresponding to received signal quality at the Wi-Fi access point to determine whether simultaneous communication via the Bluetooth connection and the Wi-Fi connection with acceptable performance levels can be achieved.

21. The computer readable medium of claim 19, further storing instructions that, when executed by the processor, cause the processor to:

determine a metric corresponding to received signal quality at a Bluetooth peer device, and

use the metric corresponding to received signal quality at a Bluetooth peer device to determine whether simultaneous communication via the Bluetooth connection and the Wi-Fi connection with acceptable performance levels can be achieved.

22. The computer readable medium of claim 19, further storing instructions that, when executed by the processor, cause the processor to:

alter a transmit power level of the communication device to permit communication via the Bluetooth connection and the Wi-Fi connection at acceptable performance levels.

23. The computer readable medium of claim 19, further storing instructions that, when executed by the processor, cause the processor to:

cause a Bluetooth peer device to change a transmit power level corresponding to the Bluetooth connection to permit communication via the Bluetooth connection and the Wi-Fi connection at acceptable performance levels.

24. The computer readable medium of claim 19, further storing instructions that, when executed by the processor, cause the processor to:

cause the Wi-Fi access point to change a channel corresponding to the Wi-Fi connection to permit communication via the Bluetooth connection and the Wi-Fi connection at acceptable performance levels.

25. The computer readable medium of claim 19, further storing instructions that, when executed by the processor, cause the processor to:

cause the communication device to transmit a clear-to-send-to-self signal via the Wi-Fi connection to cause the Wi-Fi access point to refrain from transmitting during the transmission via the Bluetooth connection.

26. The computer readable medium of claim 19, further storing instructions that, when executed by the processor, cause the processor to:

cause the communication device to transmit a signal to the Wi-Fi access point, the signal indicating that the communication device is in a power-saving or sleep mode, to cause the Wi-Fi access point to refrain from transmitting during the transmission via the Bluetooth connection.