IP Library Granted Patent US 11,558,818
Granted Patent B2
US 11,558,818 · App. 17/363,436 · Granted Jan 17, 2023

Wake-up radio advertisement channel

Inventors: Po-Kai Huang (San Jose, CA); Shahrnaz Azizi (Cupertino, CA); Noam Ginsburg (Portland, OR); Daniel F. Bravo (Portland, OR); Thomas J. Kenney (Portland, OR)
Assignee: Intel Corporation
H04W52/0229H04W48/10H04W52/0216H04W52/0219H04W76/28
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Quick Facts
Patent No.
US 11,558,818
App. No.
17/363,436
Granted
Jan 17, 2023
Kind
B2
Abstract

This disclosure describes systems, methods, and devices related to wake-up radio (WUR) advertisement channels. A device may include a wake-up receiver (WURx) and a primary connectivity radio. The device may determine a wake-up radio (WUR) discovery subchannel for WUR advertisement. The WUR discovery subchannel may be associated with a channel of a frequency band. The device may generate a WUR discovery frame comprising a WUR advertisement. The device may transmit, by the WURx, the WUR discovery frame to a second device using the WUR discovery subchannel. The device may identify a response from the second device indicating an acknowledgment of the WUR discovery frame.

Claims (53)

1. An apparatus of a device for wake-up radio (WUR) discovery scanning, the apparatus comprising processing circuitry coupled to storage, the processing circuitry configured to:

determine a first time period for a WUR discovery of an access point device by the device;

identify a frame received from the access point device by the device at a second time, the frame comprising an indication of a WUR channel associated with the WUR discovery of the access point device by the device;

scan, during the first time period, the WUR channel;

identify a WUR discovery frame received from the access point device using the WUR channel during the first time period; and

transmit, to the access point device, a request to associate with the access point device based on the WUR discovery frame.

2. The apparatus of claim 1 , wherein the first time period is negotiated by the device and the access point device.

3. The apparatus of claim 1 , wherein the processing circuitry is further configured to:

identify a second frame received from a second access point device by the device, the second frame comprising a second indication of a second WUR channel associated with the second access point device during the first time period;

scan, during the first time period, the second WUR channel; and

identify a second WUR discovery frame received by the device from the second access point device using the second WUR channel during the first time period.

4. The apparatus of claim 1 , wherein the processing circuitry is further configured to:

identify a second frame received from the access point device by the device, the second frame comprising a second indication of a second WUR channel associated with a second WUR discovery of the access point device during the first time period;

scan, during the first time period, the second WUR channel; and

identify a second WUR discovery frame received by the device from the access point device using the second WUR channel during the first time period.

5. The apparatus of claim 1 , wherein the WUR channel is channel 44 of a 5 GHz frequency band.

6. The apparatus of claim 1 , wherein the WUR channel is channel 149 of a 5 GHz frequency band.

7. The apparatus of claim 1 , wherein the WUR channel is in a 2.4 GHz frequency band.

8. The apparatus of claim 1 , further comprising a transceiver configured to transmit and receive wireless signals, the wireless signals comprising the frame.

9. The apparatus of claim 8 , further comprising one or more antennas coupled to the transceiver.

10. A non-transitory computer-readable medium storing computer-executable instructions which when executed by one or more processors result in performing operations comprising:

determining, by a device, a first time period for a WUR discovery of an access point device by the device;

identifying a frame received from the access point device by the device at a second time, the frame comprising an indication of a WUR channel associated with the WUR discovery of the access point device by the device;

scanning, during the first time period, the WUR channel;

identifying a WUR discovery frame received from the access point device using the WUR channel during the first time period; and

transmitting, to the access point device, a request to associate with the access point device based on the WUR discovery frame.

11. The non-transitory computer-readable medium of claim 10 , wherein the first time period is negotiated by the device and the access point device.

12. The non-transitory computer-readable medium of claim 10 , the operations further comprising:

identifying a second frame received from a second access point device by the device, the second frame comprising a second indication of a second WUR channel associated with a WUR discovery of the second access point device during the first time period;

scanning, during the first time period, the second WUR channel; and

identifying a second WUR discovery frame received by the device from the second access point device using the second WUR channel during the first time period.

13. The non-transitory computer-readable medium of claim 10 , the operations further comprising:

identifying a second frame received from the access point device by the device, the second frame comprising a second indication of a second WUR channel associated with a second WUR discovery of the access point device during the first time period;

scanning, during the first time period, the second WUR channel; and

identifying a second WUR discovery frame received by the device from the access point device using the second WUR channel during the first time period.

14. The non-transitory computer-readable medium of claim 10 , wherein the WUR channel is channel 44 of a 5 GHz frequency band.

15. The non-transitory computer-readable medium of claim 10 , wherein the WUR channel is channel 149 of a 5 GHz frequency band.

16. A method for discovery scanning using a wake-up radio (WUR), the method comprising:

determining, by processing circuitry of an apparatus of a device, a first time period for a WUR discovery of an access point device by the device;

identifying, by the processing circuitry, a frame received from the access point device by the device at a second time, the frame comprising an indication of a WUR channel associated with the WUR discovery of the access point device by the device;

scanning, by the processing circuitry, during the first time period, the WUR channel;

identifying, by the processing circuitry, a WUR discovery frame received from the access point device using the WUR channel during the first time period; and

transmitting, by the processing circuitry, to the access point device, a request to associate with the access point device based on the WUR discovery frame.

17. The method of claim 16 , wherein the first time period is negotiated by the device and the access point device.

18. The method of claim 16 , the method further comprising:

identifying a second frame received from a second access point device by the device, the second frame comprising a second indication of a second WUR channel associated with a WUR discovery of the second access point device during the first time period;

scanning, during the first time period, the second WUR channel; and

identifying a second WUR discovery frame received by the device from the second access point device using the second WUR channel during the first time period.

19. The method of claim 16 , the method further comprising:

identifying a second frame received from the access point device by the device, the second frame comprising a second indication of a second WUR channel associated with a second WUR discovery of the access point device during the first time period;

scanning, during the first time period, the second WUR channel; and

identifying a second WUR discovery frame received by the device from the access point device using the second WUR channel during the first time period.

20. The method of claim 16 , wherein the WUR channel is channel 44 of a 5 GHz frequency band.