Multi-mode wireless communication device and method

• US 20070047625A1
• Filed: 08/31/2005
• Published: 03/01/2007
• Est. Priority Date: 08/31/2005
• Status: Active Grant

• Current Assignee: Google Technology Holdings LLC (Alphabet Inc.)
• Original Assignee: Motorola Mobility LLC (Lenovo Group Ltd.)
• Inventors: Schwent, Dale, Klomsdorf, Armin, Kurby, Christopher, Chance, Gregory
• Granted Patent: US 8,126,030 B2
• Time in Patent Office: Days
• US Class Current: 375/141
• CPC Class Codes: H04B 1/1027 assessing signal quality or detecting noise/interference for the received signal
• CPC Class Codes: H04B 1/406 with more than one transmission mode, e.g. analog and digital modes
• CPC Class Codes: H04B 1/707 using direct sequence modulation

Abstract

A multimode wireless communication device capable of communicating pursuant to first and second communication protocols, including a method wherein a determination is made (530) as to whether a harmonic generated during transmission in one protocol interferes with reception in another protocol, and wherein transmission is suspended while receiving only if a harmonic generated during transmission interferes with reception. In some embodiments, the transmitter is temporarily operated in compressed mode to enable the suspension.

Claims

1. A method in a multimode wireless communication device capable of communicating pursuant to first and second communication protocols, the method comprising:

determining whether a harmonic generated during transmission pursuant to the first communication protocol interferes with reception pursuant to the second communication protocol;

suspending transmission pursuant to the first communication protocol while receiving pursuant to the second communication protocol only if a harmonic generated during transmission pursuant to the first communication protocol interferes with reception pursuant to the second communication protocol.

2. The method of claim 1, compensating for periods during which transmission pursuant to the first communication protocol is suspended by temporarily transmitting pursuant to the first communication protocol at a higher data rate than would be required if transmission pursuant to the first communication protocol was continuous.

3. The method of claim 1,

determining whether a second order harmonic generated during transmission pursuant to the first communication protocol interferes with reception pursuant to the second communication protocol,

suspending transmission pursuant to the first communication protocol while receiving pursuant to the second communication protocol only if the second harmonic interferes with the reception.

4. The method of claim 1,

determining whether a third order harmonic generated during transmission pursuant to the first communication protocol interferes with reception pursuant to the second communication protocol,

suspending transmission pursuant to the first communication protocol while receiving pursuant to the second communication protocol only if the third harmonic interferes with the reception.

5. The method of claim 1,

determining whether a harmonic generated during transmission pursuant to the first communication protocol interferes with reception pursuant to the second communication protocol for a particular power level during transmission pursuant to the first communication protocol.

6. The method of claim 1,

determining whether a harmonic generated during transmission pursuant to the first communication protocol interferes with reception pursuant to the second communication protocol for a particular received signal strength during reception pursuant to the second communication protocol.

7. The method of claim 1,

first communication protocol is WCDMA bands V or VI and the second communication protocol is Bluetooth,

determining whether a third harmonic generated during transmission pursuant to WCDMA bands V or VI interferes with reception pursuant to the Bluetooth protocol.

8. The method of claim 1,

first communication protocol is WCDMA band V, the second communication protocol is 802.11 receiving at center frequencies between approximately 2400 MHz and approximately 2483 MHz,

determining whether a third harmonic generated during transmission pursuant to WCDMA band V interferes with reception pursuant to the 802.11 protocol.

9. The method of claim 1,

first communication protocol is WCDMA bands V or VI, the second communication protocol is 802.11 receiving at center frequencies between approximately 2400 MHz and approximately 2497 MHz,

determining whether a third harmonic generated during transmission pursuant to WCDMA bands V or VI interferes with reception pursuant to the 802.11 protocol.

10. The method of claim 1, the first communication protocol is a continuous transmission mode protocol operable in a compressed transmission mode, utilizing the compressed transmission mode to enable transmission suspension without loss of information to be transmitted.

11. A multimode wireless communication device, comprising:

a wireless transmitter that transmits pursuant to a first communication protocol;

a wireless receiver that receives pursuant to a second communication protocol different than the first communication protocol;

a controller communicably coupled to the transmitter and the receiver,

the controller determining whether a harmonic generated during transmission by the transmitter interferes with reception by the receiver,

the controller suspending transmission by the transmitter while receiving by the receiver only if it is determined that a harmonic generated during transmission interferes with reception.

12. The device of claim 11,

a look up table stored in memory communicably coupled to the controller,

the controller determining whether the harmonic generated during transmission interferes with reception based on the look up table.

13. The device of claim 11, the controller compensating for periods during which transmission is suspended by temporarily transmitting at a higher data rate.

14. The device of claim 11,

the controller determining whether a second order harmonic generated during transmission interferes with reception,

the controller suspending transmission while receiving only if the second harmonic interferes with reception.

15. The device of claim 11,

the controller determining whether a third order harmonic generated during transmission interferes with reception,

the controller suspending transmission while receiving only if the third harmonic interferes with the reception.

16. The device of claim 11,

the first communication protocol is a continuous transmission mode protocol, the wireless transmitter operating in compressed mode to enable transmission suspension.

17. The device of claim 11,

first communication protocol is WCDMA bands V or VI, the second communication protocol is Bluetooth,

the controller determining whether a third harmonic generated during transmission pursuant to WCDMA bands V or VI interferes with reception pursuant to the Bluetooth protocol.

18. The device of claim 11,

first communication protocol is WCDMA band V, the second communication protocol is 802.11 receiving at center frequencies between approximately 2400 MHz and approximately 2483 MHz,

the controller determining whether a third harmonic generated during transmission pursuant to WCDMA band V interferes with reception pursuant to the 802.11 protocol.

19. The device of claim 11,

first communication protocol is WCDMA bands V or VI, the second communication protocol is 802.11 receiving at center frequencies between approximately 2400 MHz and approximately 2497 MHz,

the controller determining whether a third harmonic generated during transmission pursuant to WCDMA bands V or VI interferes with reception pursuant to the 802.11 protocol.

20. The device of claim 11,

first communication protocol is WCDMA band I, the second communication protocol is 802.16 receiving at center frequencies between approximately 3410 MHz and approximately 4200 MHz,

the controller determining whether a second harmonic generated during transmission pursuant to WCDMA band I interferes with reception pursuant to the 802.16 protocol.