Method and system for auto coexistence priority selection for a SCO link

• US 20070274273A1
• Filed: 05/24/2006
• Published: 11/29/2007
• Est. Priority Date: 05/24/2006
• Status: Active Grant

• Current Assignee: Avago Technologies International Sales Pte Limited (Broadcom, Inc.)
• Original Assignee: Broadcom Corporation (Broadcom, Inc.)
• Inventors: Walley, John, Grushkevich, Asif
• Granted Patent: US 8,442,434 B2
• Time in Patent Office: Days
• US Class Current: 370/338
• CPC Class Codes: H04L 12/5692 Selection among different networks
• 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 72/56 based on priority criteria
• CPC Class Codes: H04W 72/569 of the traffic information
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]
• 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 for auto coexistence priority selection for a SCO link are disclosed. Aspects of one method may include a first Bluetooth device communicating with a collocated WLAN device via a coexistence method. The first Bluetooth device, prior to executing a non-SCO task, which may comprise tasks that do not involve SCO packet transfer, may communicate low priority via the coexistence method if a Bluetooth SCO link is present between the first Bluetooth device and a second Bluetooth device, and if a current task being handled by the first Bluetooth device is a high priority task. If a SCO link is not present between the first and second Bluetooth devices, and if the current non-SCO task is a high priority task, the first Bluetooth device may communicate high priority via the coexistence method prior to executing the non-SCO task.

Claims

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

if a Bluetooth SCO link is present between a first Bluetooth device communicating via a coexistence method with a collocated WLAN device and a second Bluetooth device, and if a non-SCO task, which does not comprise transfer of SCO packet, is being handled by said first Bluetooth device and is a high priority task, communicating a low priority via said coexistence method prior to said first Bluetooth device executing said non-SCO task.

2. The method according to claim 1, wherein said executing said non-SCO task comprises at least one of the following:

transmitting at least one Bluetooth packet in at least one Bluetooth frame and receiving at least one Bluetooth packet in at least one Bluetooth frame.

3. The method according to claim 1, wherein said first Bluetooth device operates as a master and said second Bluetooth device operates as a slave.

4. The method according to claim 1, wherein said first Bluetooth device operates as a slave and said second Bluetooth device operates as a master.

5. The method according to claim 1, further comprising, if said Bluetooth SCO link is not present between said first Bluetooth device and said second Bluetooth device, and if said current non-SCO task being handled by said first Bluetooth device is a high priority task, communicating a high priority via said coexistence method prior to said first Bluetooth device said executing said task.

6. The method according to claim 1, wherein said SCO link is HV2 SCO link.

7. The method according to claim 1, wherein said SCO link is HV3 SCO link.

8. A machine-readable storage having stored thereon, a computer program having at least one code section for wireless communication, the at least one code section being executable by a machine for causing the machine to perform steps comprising:

if a Bluetooth SCO link is present between a first Bluetooth device communicating via a coexistence method with a collocated WLAN device and a second Bluetooth device, and if a non-SCO task, which does not comprise transfer of SCO packet, is being handled by said first Bluetooth device and is a high priority task, communicating a low priority via said coexistence method prior to said first Bluetooth device executing said non-SCO task.

9. The machine-readable storage according to claim 8, wherein said executing said non-SCO task comprises at least one of the following:

transmitting at least one Bluetooth packet in at least one Bluetooth frame and receiving at least one Bluetooth packet in at least one Bluetooth frame.

10. The machine-readable storage according to claim 8, wherein said first Bluetooth device operates as a master and said second Bluetooth device operates as a slave.

11. The machine-readable storage according to claim 8, wherein said first Bluetooth device operates as a slave and said second Bluetooth device operates as a master.

12. The machine-readable storage according to claim 8, further comprising code that allows, if said Bluetooth SCO link is not present between said first Bluetooth device and said second Bluetooth device, and if said current non-SCO task being handled by said first Bluetooth device is a high priority task, communicating a high priority via said coexistence method prior to said first Bluetooth device said executing said task.

13. The machine-readable storage according to claim 8, wherein said SCO link is HV2 SCO link.

14. The machine-readable storage according to claim 8, wherein said SCO link is HV3 SCO link.

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

handshaking circuitry for a coexistence interface that enables communication of a low priority with a WLAN device collocated with a first Bluetooth device prior to said first Bluetooth device executing a non-SCO task, which does not comprise transfer of SCO packet, if a Bluetooth SCO link is present between said first Bluetooth device and a second Bluetooth device, and if said current task being handled by said first Bluetooth device is a high priority task.

16. The system according to claim 15, wherein said executing said non-SCO task comprises at least one of the following:

transmitting at least one Bluetooth packet in at least one Bluetooth frame and receiving at least one Bluetooth packet in at least one Bluetooth frame.

17. The system according to claim 15, wherein said first Bluetooth device operates as a master and said second Bluetooth device operates as a slave.

18. The system according to claim 15, wherein said first Bluetooth device operates as a slave and said second Bluetooth device operates as a master.

19. The system according to claim 15, wherein said handshaking circuitry enables communication of a high priority via a coexistence interface prior to said first Bluetooth device said executing said task if said Bluetooth SCO link is not present between said first Bluetooth device and said second Bluetooth device, and if said current non-SCO task being handled by said first Bluetooth device is a high priority task.

20. The system according to claim 15, wherein said SCO link is HV2 SCO link.

21. The system according to claim 15, wherein said SCO link is HV3 SCO link.