Method and system for selective equalization enablement based on modulation type

• US 20060084382A1
• Filed: 04/11/2005
• Published: 04/20/2006
• Est. Priority Date: 11/01/2004
• Status: Active Grant

• Current Assignee: Avago Technologies General IP PTE Limited (Broadcom, Inc.)
• Original Assignee: Broadcom Corporation (Broadcom, Inc.)
• Inventors: Kim, Hea Joung, Ibrahim, Brima, Lettieri, Paul
• Granted Patent: US 7,574,175 B2
• Time in Patent Office: Days
• US Class Current: 455/41.200
• CPC Class Codes: H04L 27/0012 arrangements for identifying the type of modulation

Abstract

Aspects of a method and system for selective equalization enablement based on modulation type may be found in a method for processing a radio frequency (RF) signal that comprises receiving a Bluetooth signal via an RF channel, detecting a modulation type of the received Bluetooth signal, and selecting an equalization circuit for processing the received Bluetooth signal based on the detected modulation type. The method may also comprise determining a data rate based on the detected modulation type.

Claims

1. A method for processing a radio frequency (RF) signal, the method comprising:

receiving a Bluetooth signal via an RF channel;

detecting a modulation type of said received Bluetooth signal; and

selecting an equalization circuit for processing said received Bluetooth signal based on said detected modulation type.

2. The method according to claim 1, further comprising determining a data rate of said received Bluetooth signal based on said detected modulation type.

3. The method according to claim 1, further comprising equalizing said received Bluetooth signal based on a determined data rate.

4. The method according to claim 1, further comprising enabling said equalization circuit via a switch.

5. The method according to claim 1, further comprising processing said received Bluetooth signal based on said detected modulation type.

6. The method according to claim 5, further comprising, if a detected data rate of said detected modulation type is greater than about 1 megabit per second, enabling said equalization circuit for said processing of said received Bluetooth signal.

7. The method according to claim 5, further comprising, if a detected data rate of said detected modulation type is less than about 1 megabit per second, disabling said equalization circuit for said processing of said received Bluetooth signal.

8. The method according to claim 1, further comprising selecting an output signal based on said detected modulation type.

9. The method according to claim 8, further comprising, if a detected data rate of said detected modulation type is greater than about 1 megabit per second, selecting said output signal from an equalized said received Bluetooth signal.

10. The method according to claim 8, further comprising, if a detected data rate of said detected modulation type is less than about 1 megabit per second, selecting said output signal from a non-equalized said received Bluetooth signal.

11. A system for processing a radio frequency (RF) signal, the system comprising:

circuitry that receives a Bluetooth signal via an RF channel;

a baseband processor that detects a modulation type of said received Bluetooth signal; and

said baseband processor selects an equalization circuit for processing said received Bluetooth signal based on said detected modulation type.

12. The system according to claim 11, wherein said baseband processor determines a data rate of said received Bluetooth signal based on said detected modulation type.

13. The system according to claim 11, wherein said equalization circuit equalizes said received Bluetooth signal based on a determined data rate.

14. The system according to claim 11, wherein said baseband processor controls enables said equalization circuit via a switch.

15. The system according to claim 11, wherein said equalization circuit processes said received Bluetooth signal based on said detected modulation type.

16. The system according to claim 15, further comprising an equalizer switch that enables said equalization circuit for said processing of said received Bluetooth signal, if a detected data rate of said detected modulation type is greater than about 1 megabit per second.

17. The system according to claim 15, further comprising an equalizer switch that disables said equalization circuit for said processing of said received Bluetooth signal, if a detected data rate of said detected modulation type is less than about 1 megabit per second.

18. The system according to claim 17, wherein said equalizer switch configures said equalization circuit in a power turned OFF state.

19. The system according to claim 11, further comprising a selector circuit that selects an output signal based on said detected modulation type.

20. The system according to claim 19, wherein said selector circuit selects said output signal from an equalized said received Bluetooth signal, if a detected data rate of said detected modulation type is greater than about 1 megabit per second.

21. The system according to claim 19, wherein said selector circuit selects said output signal from a non-equalized said received Bluetooth signal, if a detected data rate of said detected modulation type is less than about 1 megabit per second.