Method and system for collocated IEEE 802.11 B/G WLAN, and BT with FM in coexistent operation

• US 20060084383A1
• Filed: 11/22/2005
• Published: 04/20/2006
• Est. Priority Date: 08/09/2004
• Status: Abandoned Application

• Current Assignee: Avago Technologies General IP PTE Limited (Broadcom, Inc.)
• Original Assignee: Avago Technologies General IP PTE Limited (Broadcom, Inc.)
• Inventors: Desai, Prasanna, Walley, John, Ibrahim, Brima
• Application Number:
  US11/286,844
• Publication Number:
  US 20060084383A1
• Time in Patent Office: Days
• US Class Current: 455/41.200
• 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 74/0875 with assigned priorities based access
• 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

A method and system for collocated IEEE 802.11 b/g WLAN, and Bluetooth (BT) with FM in coexistent operation are provided. A single chip comprising an integrated BT radio and an integrated FM radio in a coexistence station may generate a priority signal to disable WLAN transmissions in a WLAN radio when a BT HV3 frame is available for transmission. When the priority signal is asserted, an exponentially growing retransmission backoff mechanism in the WLAN radio may be disabled. Moreover, when the BT radio and the WLAN radio are enabled for coexistence operation, a WLAN fragmentation threshold in the WLAN radio may be modified based on a WLAN modulation rate and the BT HV3 frame duration. An on-chip processor that time multiplexes FM and Bluetooth data processing may be utilized to control the BT radio operation and the FM radio operation in the single chip.

Claims

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

in a station that comprises a wireless local area network (WLAN) radio and a single chip with an integrated Bluetooth (BT) radio and an integrated FM radio;

asserting a BT priority signal for transmitting BT HV3 data from said integrated Bluetooth radio;

disabling WLAN transmission capabilities in said WLAN radio based on said asserted BT priority signal; and

transmitting said BT HV3 data via said integrated BT radio when said WLAN transmission capabilities in said WLAN radio are disabled.

2. The method according to claim 1, further comprising communicating data via said integrated FM radio when said WLAN radio is disabled.

3. The method according to claim 1, further comprising deasserting said BT priority signal when said transmitting of said BT HV3 data is complete.

4. The method according to claim 3, further comprising enabling said WLAN transmission capabilities when said BT priority signal is deasserted.

5. The method according to claim 1, further comprising generating said BT priority signal at least a predetermined guard time before transmitting said BT HV3 data.

6. The method according to claim 1, further comprising turning OFF a power amplifier communicatively coupled to said WLAN radio when disabling said WLAN transmission capabilities.

7. The method according to claim 1, further comprising disabling an exponentially growing retransmission backoff in said WLAN radio when said BT priority signal is asserted.

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

in a station that comprises a wireless local area network (WLAN) radio and a single chip with an integrated Bluetooth (BT) radio and an integrated FM radio;

asserting a BT priority signal for transmitting BT HV3 data from said integrated Bluetooth radio;

disabling WLAN transmission capabilities in said WLAN radio based on said asserted BT priority signal; and

transmitting said BT HV3 data via said integrated BT radio when said WLAN transmission capabilities in said WLAN radio are disabled.

9. The machine-readable storage according to claim 8, further comprising code for communicating data via said integrated FM radio when said WLAN radio is disabled.

10. The machine-readable storage according to claim 8, further comprising code for deasserting said BT priority signal when said transmitting of said BT HV3 data is complete.

11. The machine-readable storage according to claim 10, further comprising code for enabling said WLAN transmission capabilities when said BT priority signal is deasserted.

12. The machine-readable storage according to claim 8, further comprising code for generating said BT priority signal at least a predetermined guard time before transmitting said BT HV3 data.

13. The machine-readable storage according to claim 8, further comprising code for turning OFF a power amplifier communicatively coupled to said WLAN radio when disabling said WLAN transmission capabilities.

14. The machine-readable storage according to claim 8, further comprising code for disabling an exponentially growing retransmission backoff in said WLAN radio when said BT priority signal is asserted.

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

a station that comprises a wireless local area network (WLAN) radio and a single chip with an integrated Bluetooth (BT) radio and an integrated FM radio;

said integrated BT radio comprises circuitry that enables asserting a BT priority signal for transmitting BT HV3 data from said integrated BT radio;

said WLAN radio comprises circuitry that enables disabling WLAN transmission capabilities in said WLAN radio based on said asserted BT priority signal; and

said integrated BT radio comprises circuitry that enables transmission of said HV3 data when said WLAN transmission capabilities in said WLAN radio are disabled.

16. The system according to claim 15, further comprising circuitry within said integrated FM radio that enables communication of data via said integrated FM radio when said WLAN radio is disabled.

17. The system according to claim 15, further comprising circuitry within said integrated BT radio that enables deasserting said BT priority signal when said transmitting of said BT HV3 data is complete.

18. The system according to claim 17, further comprising circuitry within said WLAN radio that enables said WLAN transmission capabilities when said BT priority signal is deasserted.

19. The system according to claim 15, further comprising circuitry within said integrated BT radio that enables generation of said BT priority signal at least a predetermined guard time before transmitting said BT HV3 data.

20. The system according to claim 15, further comprising circuitry within said WLAN radio that enables turning OFF a power amplifier communicatively coupled to said WLAN radio when disabling said WLAN transmission capabilities.

21. The system according to claim 15, further comprising circuitry within said WLAN radio that disables an exponentially growing retransmission backoff in said WLAN radio when said BT priority signal is asserted.

22. A system for providing wireless communication, the system comprising:

a single chip with an integrated Bluetooth (BT) radio and an integrated FM radio;

said integrated Bluetooth radio comprises circuitry that enables asserting a priority signal for transmitting BT HV3 data from said integrated BT radio; and

said integrated BT radio comprises circuitry that enables transmission of said HV3 data when WLAN transmission capabilities in a co-located WLAN radio are disabled.

23. The system according to claim 22, further comprising circuitry within said integrated FM radio that enables communication of data via said integrated FM radio when said co-located WLAN radio is disabled.

24. The system according to claim 22, further comprising circuitry within said integrated BT radio that enables deasserting said BT priority signal when said transmitting of said BT HV3 data is complete.

25. The system according to claim 24, further comprising circuitry within said co-located WLAN radio that enables said WLAN transmission capabilities when said BT priority signal is deasserted.

26. The system according to claim 22, further comprising circuitry within said integrated BT radio that enables generation of said BT priority signal at least a predetermined guard time before transmitting said BT HV3 data.

27. The system according to claim 22, further comprising circuitry within said co-located WLAN radio that enables turning OFF a power amplifier communicatively coupled to said WLAN radio when disabling said WLAN transmission capabilities.

28. The system according to claim 22, further comprising circuitry within said co-located WLAN radio that disables an exponentially growing retransmission backoff in said WLAN radio when said BT priority signal is asserted.

29. A system for providing wireless communication, the system comprising:

a wireless local area network (WLAN) radio;

said WLAN radio comprises circuitry that receives a Bluetooth (BT) priority signal for transmission of BT HV3 data from a co-located BT radio, and disables WLAN transmission capabilities in said WLAN radio based on said asserted BT priority signal; and

said circuitry enables WLAN transmission capabilities after transmission of said Bluetooth HV3 data is complete.

30. The system according to claim 29, further comprising circuitry within a co-located FM radio that enables communication of data via said FM radio when said WLAN radio is disabled.

31. The system according to claim 29, further comprising circuitry within said co-located BT radio that deasserts said priority signal when said transmission of said BT HV3 data is complete.

32. The system according to claim 31, comprising circuitry within said WLAN radio that enables said WLAN transmission capabilities when said BT priority signal is deasserted.

33. The system according to claim 29, further comprising circuitry within said co-located BT radio that enables generation of said priority signal at least a predetermined guard time before transmitting said BT HV3 data.

34. The system according to claim 29, comprising circuitry within said WLAN radio that enables turning OFF a power amplifier communicatively coupled to said WLAN radio when disabling said WLAN transmission capabilities.

35. The system according to claim 29, comprising circuitry within said WLAN radio that disables an exponentially growing retransmission backoff in said WLAN radio when said BT priority signal is asserted.