Apparatus and method for coexistent wireless and bluetooth communication employing interruption of arbitration requests to allocate use of a shared antenna

• US 8,848,676 B1
• Filed: 03/17/2010
• Issued: 09/30/2014
• Est. Priority Date: 03/30/2009
• Status: Active Grant

• Current Assignee: Marvell Asia Pte Limited (Marvell Technology Group Limited)
• Original Assignee: Marvell International Limited (Marvell Technology Group Limited)
• Inventors: Wheeler, Todd Steven, Jain, Deepak, Mack, Robert, Wong, Gladys Yuen Yan, Chokshi, Ronak Anjan, Kim, Myung Cheol, Chen, Jigang
• Primary Examiner(s): Williams, Jenee
• Application Number:
  US12/725,924
• Time in Patent Office: 1,658 Days
• Field of Search: 370/311, 370/328, 370/329, 370/338, 370/339, 370/331
• US Class Current: 370/338
• CPC Class Codes: H04B 7/0602 using antenna switching H04B7/0686 takes precedence; antenna beam directivity switching H01Q3/24
• CPC Class Codes: H04B 7/0802 using antenna selection H04B7/0868 takes precedence; antenna beam directivity switching H01Q3/24
• CPC Class Codes: H04M 2250/02 including a Bluetooth interface
• CPC Class Codes: H04M 2250/06 including a wireless LAN interface

Abstract

An apparatus has first and second wireless communication modules with respective first and second wireless communication signaling terminals. An arbiter is coupled to receive a request for access to an antenna from one of the first and second wireless communication modules. The arbiter is operable to cause the antenna to be coupled to one of the first and second wireless communication signaling terminals in response to the request, and a coexistence module is operable to prevent the arbiter from receiving a request from the second wireless communication module to thereby allow a communication of the first wireless communication module.

Claims

1. An apparatus comprising:

a first wireless communication module having a first antenna request terminal and at least a first wireless communication signaling terminal;

a second wireless communication module having a second antenna request terminal and at least a second wireless communication signaling terminal;

an arbiter (i) coupled to receive from one of the first wireless communication module or the second wireless communication module, via the first antenna request terminal or the second antenna request terminal, respectively, a request for access to an antenna and (ii) operable to cause the antenna to be coupled to one of the first wireless communication signaling terminal or the second wireless communication signaling terminal in response to the request; and

a coexistence module operable to prevent the arbiter from receiving a request from the second wireless communication module to thereby allow a communication of the first wireless communication module by disabling the second antenna request terminal.

2. The apparatus of claim 1, further comprising the antenna.

3. The apparatus of claim 1, wherein the coexistence module further comprises a switch (i) responsive to a signal from the first wireless communication module and (ii) operable to prevent the arbiter from receiving a request from the second wireless communication module.

4. The apparatus of claim 3, wherein the switch comprises a binary flag, and wherein the arbiter does not receive a request from the second wireless communication module while the binary flag has a particular value.

5. The apparatus of claim 1, wherein the first wireless communication module operates according to a different communication protocol relative to the second wireless communication module.

6. The apparatus of claim 1, wherein the first wireless communication module operates according to one of a wireless local area network (WLAN) protocol or a WiMAX protocol.

7. The apparatus of claim 1, wherein the second wireless communication module operates according to a Bluetooth protocol.

8. The apparatus of claim 1, wherein the first wireless communication module and the second wireless communication module are disposed on a single integrated circuit.

9. The apparatus of claim 1, wherein the first wireless communication module and the second wireless communication module are disposed on separate integrated circuits.

10. The apparatus of claim 1, wherein the first wireless communication module has a wireless transmit terminal and a wireless receive terminal, and wherein the arbiter is operable to couple the antenna to one of the wireless transmit terminal, the wireless receive terminal, or the second wireless communication signaling terminal of the second wireless communication module.

11. The apparatus of claim 1, wherein the apparatus comprises one of a mobile telephone, a cordless telephone, a gaming device, a music player, a laptop computer, a desktop computer, a digital picture frame, or a digital video recorder.

12. The apparatus of claim 1, wherein the coexistence module is configured to prevent the arbiter from receiving the request from the second wireless communication module while a transmission timer for the first wireless communication module has not expired.

13. A method comprising:

providing a first wireless communication module having a first antenna request terminal and at least a first wireless communication signaling terminal;

providing a second wireless communication module having a second antenna request terminal and at least a second wireless communication signaling terminal;

providing an arbiter coupled to receive from one of the first wireless communication module or the second wireless communication module, via the first antenna request terminal or the second antenna request terminal, respectively, a request for access to an antenna, wherein the arbiter is operable to cause the antenna to be coupled to one of the first wireless communication signaling terminal or the second wireless communication signaling terminal in response to the request; and

preventing the arbiter from receiving a request from the second wireless communication module to thereby allow a communication of the first wireless communication module by disabling the second antenna request terminal.

14. The method of claim 13, further comprising providing an antenna for communications of the first wireless communication module and the second wireless communication module.

15. The method of claim 13, further comprising providing a switch responsive to a signal from the first wireless communication module and operable to prevent the arbiter from receiving a request from the second wireless communication module.

16. The method of claim 15, wherein the switch comprises a binary flag, and wherein the arbiter does not receive a request from the second wireless communication module while the binary flag has a particular value.

17. The method of claim 13, further comprising operating the first wireless communication module and the second wireless communication module according to different communication protocols.

18. The method of claim 13, further comprising operating the first wireless communication module according to one of a wireless local area network (WLAN) protocol or a WiMAX protocol.

19. The method of claim 13, further comprising operating the second wireless communication module according to a Bluetooth protocol.

20. The method of claim 13, further comprising providing the first wireless communication module with a wireless transmit terminal and a wireless receive terminal, and operating the arbiter to couple the antenna to one of the wireless transmit terminal, the wireless receive terminal, or the second wireless communication signaling terminal of the second wireless communication module.