Method and System For a Transceiver For Bluetooth and Near Field Communication (NFC)

• US 20070297356A1
• Filed: 06/21/2006
• Published: 12/27/2007
• Est. Priority Date: 06/21/2006
• Status: Active Grant

• Current Assignee: NXP USA, Inc. (NXP Semiconductors NV)
• Original Assignee: Broadcom Corporation (Broadcom, Inc.)
• Inventors: Rofougaran, Ahmadreza
• Granted Patent: US 8,660,604 B2
• Time in Patent Office: Days
• US Class Current: 370/328
• CPC Class Codes: H04B 1/40 Circuits
• CPC Class Codes: H04B 5/00 Near-field transmission systems, e.g. inductive or capacitive transmission systems
• CPC Class Codes: H04B 5/0006 using a receiver structurally associated with a loudspeaker or an earphone
• CPC Class Codes: H04B 5/48 Transceivers
• 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

Frequency conversion methods and systems for a transceiver for Bluetooth and near field communication. NFC data may be received and/or transmitted via the NFC radio and Bluetooth data may be received and/or transmitted via the Bluetooth radio. With an integration of frequency conversion for Bluetooth and NFC, both systems may operate from a single frequency source, thereby reducing part count and power consumption. Communication between Bluetooth and NFC channels may be enabled via a single chip.

Claims

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

communicating NFC data via a first signal generated by a first programmable synthesizer;

communicating Bluetooth data via a second signal generated by a second programmable synthesizer; and

controlling said first programmable synthesizer and said second programmable synthesizer via a frequency controller communicatively coupled to an NFC processor that enables said communicating of said NFC data and to a Bluetooth processor that enables said communicating of said Bluetooth data.

2. The method according to claim 1, wherein said communicating NFC data further comprises time multiplexing between receiving said NFC data and transmitting said NFC data.

3. The method according to claim 1, wherein said communicating Bluetooth data further comprises time multiplexing between receiving said Bluetooth data and transmitting said Bluetooth data in said Bluetooth processor.

4. The method according to claim 1, wherein the second signal changes frequency according to an adaptive frequency hopping (AFH) map for said communicated Bluetooth data.

5. The method according to claim 1, further comprising generating said first signal by said first programmable synthesizer based on a received oscillator signal.

6. The method according to claim 5, further comprising generating said second signal by said second programmable synthesizer based on said generated first signal.

7. The method according to claim 1, further comprising generating said second signal by said second programmable synthesizer based on a received oscillator signal.

8. The method according to claim 7, further comprising generating said first signal by said first programmable synthesizer based on said generated second signal.

9. A system for supporting wireless communication, the system comprising:

a first programmable synthesizer that enables generation of a first signal for communicating NFC data;

a second programmable synthesizer that enables generation of a second signal for communicating Bluetooth data; and

a frequency controller the enables controlling of said first programmable synthesizer and said second programmable synthesizer, where said frequency controller is communicatively coupled to an NFC processor that enables said communicating of said NFC data and to a Bluetooth processor that enables said communicating of said Bluetooth data.

10. The system according to claim 9, wherein said NFC processor enables time multiplexing between receiving said NFC data and transmitting said NFC data.

11. The system according to claim 9, wherein said Bluetooth processor multiplexes between processing of receiving said Bluetooth data and transmitting said Bluetooth data.

12. The system according to claim 9, wherein the second signal changes frequency according to an adaptive frequency hopping (AFH) map for said communicated Bluetooth data.

13. The system according to claim 9, further comprising generating said first signal by said first programmable synthesizer based on a received oscillator signal.

14. The system according to claim 13, further comprising generating said second signal by said second programmable synthesizer based on said generated first signal.

15. The system according to claim 9, further comprising generating said second signal by said second programmable synthesizer based on a received oscillator signal.

16. The system according to claim 15, further comprising generating said first signal by said first programmable synthesizer based on said generated second signal.

17. A system for supporting wireless communication, the system comprising:

an NFC frequency synthesizer;

an NFC frequency transceiver, communicatively coupled to said NFC frequency synthesizer, for receiving NFC signals;

an NFC processor for processing the received NFC signals;

a Bluetooth frequency synthesizer;

a Bluetooth frequency transceiver, communicatively coupled to said Bluetooth frequency synthesizer, for transmitting and receiving Bluetooth signals;

a Bluetooth processor for processing Bluetooth signals; and

a frequency controller, communicatively coupled to said NFC processor and to said Bluetooth processor, for controlling said NFC frequency synthesizer and said Bluetooth frequency synthesizer.

18. The system according to claim 17, wherein said NFC frequency transceiver is further capable of transmitting NFC signals.

19. The system according to claim 18, wherein said NFC processor controls said NFC frequency transceiver for time multiplexing between receiving NFC signals and transmitting NFC signals.

20. The system according to claim 17, wherein said Bluetooth processor is controls said Bluetooth frequency transceiver for time multiplexing between receiving Bluetooth signals and transmitting Bluetooth signals.

21. The system according to claim 17, wherein said frequency controller changes a carrier frequency output of said Bluetooth frequency synthesizer according to an adaptive frequency hopping (AFH) map.

22. The system according to claim 17, wherein said Bluetooth frequency synthesizer generates a Bluetooth carrier frequency based on a received oscillator signal.

23. The system according to claim 22, wherein said NFC frequency synthesizer generates an NFC carrier frequency based on said received Bluetooth carrier frequency.

24. The system according to claim 17, wherein said NFC frequency synthesizer generates an NFC carrier frequency based on a received oscillator signal.

25. The system according to claim 24, wherein said Bluetooth frequency synthesizer generates a Bluetooth carrier frequency based on said received NFC carrier frequency.