APPARATUS, SYSTEM AND METHOD OF COMMUNICATING A WAKEUP PACKET

• US 20170111866A1
• Filed: 09/22/2016
• Published: 04/20/2017
• Est. Priority Date: 05/17/2015
• Status: Active Grant

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Park, Minyoung, Somayazulu, Vallabhajosyula S.
• Granted Patent: US 9,848,385 B2
• Time in Patent Office: Days
• CPC Class Codes: H04L 27/04 Modulator circuits; Transmitter circuits
• CPC Class Codes: H04L 27/2613 Structure of the reference signals
• CPC Class Codes: H04W 52/0235 where the received signal is a power saving command
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

Some demonstrative embodiments include apparatuses, devices, systems and methods of communicating a wakeup packet. For example, an apparatus may include circuitry configured to cause a first wireless device to modulate a preamble of a wakeup packet according to an Orthogonal Frequency Division Multiplexing (OFDM) scheme; modulate a payload of the wakeup packet according to an On-Off keying (OOK) modulation scheme over a plurality of OFDM tones; and transmit the wakeup packet to a second wireless device.

Claims

1. (canceled)

2. An apparatus comprising circuitry and logic configured to cause an Orthogonal Frequency Division Multiplexing (OFDM) transmitter of a first wireless communication device to:

transmit a preamble of a wakeup packet to a second wireless communication device, the preamble modulated according to an OFDM scheme; and

transmit a payload of the wakeup packet, the payload modulated according to an On-Off keying (OOK) modulation scheme over a plurality of OFDM tones of the OFDM scheme.

3. The apparatus of claim 2 configured to cause the first wireless communication device to select, based on a payload value of the payload, whether or not to cause the OFDM transmitter to transmit an OOK transmit pulse over the plurality of OFDM tones during at least one OFDM symbol period.

4. The apparatus of claim 2 configured to cause the first wireless communication device to modulate an On-state of the OOK modulation scheme by causing the OFDM transmitter to transmit an OOK transmit pulse over the plurality of OFDM tones during at least one OFDM symbol period, and to modulate an Off-state of the OOK modulation scheme by selecting not to cause the OFDM transmitter to transmit the OOK transmit pulse over the plurality of OFDM tones during the OFDM symbol period.

5. The apparatus of claim 2 configured to cause the first wireless communication device to generate an OOK transmit pulse over the plurality of OFDM tones, and to modulate a plurality of payload values of the payload by selectively causing the OFDM transmitter to transmit the OOK transmit pulse during one or more OFDM symbol periods of a plurality of OFDM symbol periods.

6. The apparatus of claim 2 configured to cause the first wireless communication device to select the plurality of OFDM tones based on a feedback from the second wireless communication device.

7. The apparatus of claim 2 configured to cause the first wireless communication device to adjust a modulation of the plurality of OFDM tones based on a feedback from the second wireless communication device.

8. The apparatus of claim 2, wherein the preamble comprises a signal field to indicate at least a duration of the payload.

9. The apparatus of claim 2, wherein the preamble comprises a rate field and a length field, which are based on a number of the plurality of OFDM tones and a number of OOK bits in the payload.

10. The apparatus of claim 2, wherein the plurality of OFDM tones comprises 12 OFDM tones.

11. The apparatus of claim 2 comprising the OFDM transmitter.

12. The apparatus of claim 2 comprising one or more antennas.

13. A product comprising one or more tangible computer-readable non-transitory storage media comprising computer-executable instructions operable to, when executed by at least one computer processor, enable the at least one computer processor to:

cause an Orthogonal Frequency Division Multiplexing (OFDM) transmitter of a first wireless communication device to transmit a preamble of a wakeup packet to a second wireless communication device, the preamble modulated according to an OFDM scheme; and

cause the OFDM transmitter to transmit a payload of the wakeup packet, the payload modulated according to an On-Off keying (OOK) modulation scheme over a plurality of OFDM tones of the OFDM scheme.

14. The product of claim 13, wherein the instructions, when executed, cause the first wireless communication device to select, based on a payload value of the payload, whether or not to cause the OFDM transmitter to transmit an OOK transmit pulse over the plurality of OFDM tones during at least one OFDM symbol period.

15. The product of claim 13, wherein the instructions, when executed, cause first wireless communication device to modulate an On-state of the OOK modulation scheme by causing the OFDM transmitter to transmit an OOK transmit pulse over the plurality of OFDM tones during at least one OFDM symbol period, and to modulate an Off-state of the OOK modulation scheme by selecting not to cause the OFDM transmitter to transmit the OOK transmit pulse over the plurality of OFDM tones during the OFDM symbol period.

16. The product of claim 13, wherein the instructions, when executed, cause first wireless communication device to select the plurality of OFDM tones based on a feedback from the second wireless communication device.

17. The product of claim 13, wherein the instructions, when executed, cause first wireless communication device to adjust a modulation of the plurality of OFDM tones based on a feedback from the second wireless communication device.

18. The product of claim 13, wherein the preamble comprises a rate field and a length field, which are based on a number of the plurality of OFDM tones and a number of OOK bits in the payload.

19. The product of claim 13, wherein the plurality of OFDM tones comprises 12 OFDM tones.

20. An apparatus comprising circuitry and logic configured to cause a first wireless communication device to:

demodulate, at a wakeup receiver of the first wireless communication device, a preamble of a wakeup packet from a second wireless communication device according to an Orthogonal Frequency Division Multiplexing (OFDM) scheme;

demodulate, at the wakeup receiver of the first wireless communication device, a payload of the wakeup packet according to an On-Off keying (OOK) modulation scheme over a plurality of OFDM tones of the OFDM scheme; and

based on the payload of the wakeup packet, activate a transceiver of the first wireless communication device.

21. The apparatus of claim 20 configured to cause the first wireless communication device to demodulate a payload value of the payload by determining an OOK On-state of the payload value, when an OOK transmit pulse is detected during at least one OFDM symbol period, and determining an OOK Off-state of the payload value when the OOK transmit pulse is not detected during the OFDM symbol period.

22. The apparatus of claim 20 configured to cause the first wireless communication device to transmit to the second wireless communication device feedback information to indicate an adjustment of the OOK modulation scheme over the plurality of OFDM tones.

23. The apparatus of claim 20 comprising the wakeup receiver and the transceiver.

24. A product comprising one or more tangible computer-readable non-transitory storage media comprising computer-executable instructions operable to, when executed by at least one computer processor, enable the at least one computer processor to cause a first wireless communication device to:

demodulate, at a wakeup receiver of the first wireless communication device, a preamble of a wakeup packet from a second wireless communication device according to an Orthogonal Frequency Division Multiplexing (OFDM) scheme;

demodulate, at the wakeup receiver of the first wireless communication device, a payload of the wakeup packet according to an On-Off keying (OOK) modulation scheme over a plurality of OFDM tones of the OFDM scheme; and

based on the payload of the wakeup packet, activate a transceiver of the first wireless communication device.

25. The product of claim 24, wherein the instructions, when executed, cause the first wireless communication device to demodulate a payload value of the payload by determining an OOK On-state of the payload value, when an OOK transmit pulse is detected during at least one OFDM symbol period, and determining an OOK Off-state of the payload value when the OOK transmit pulse is not detected during the OFDM symbol period.