Low-power wake-up receiver negotiation procedure

Patent metadata

Field	Value
Publication number	US-10499335-B2
Application number	US-201815897601-A
Country	US
Kind code	B2
Filing date	Feb 15, 2018
Priority date	Jul 13, 2016
Publication date	Dec 3, 2019
Grant date	Dec 3, 2019

Abstract

Embodiments of a LP-WUR (low-power wake-up radio) negotiation procedure are generally described herein. A first wireless device encodes a request frame for transmission to a second wireless device, requesting to enable a LP-WUR mode and negotiate parameters for LP-WUR transmission between the first wireless device and the second wireless device. The first wireless device decodes a response action frame responsive to the request frame, indicating acceptance or rejection of the request. If the response action frame indicates acceptance of the request, the first wireless device: encodes an acknowledgement frame for transmission to the second wireless device, the acknowledgement frame to configure the second wireless device to enable the LP-WUR mode.

First claim

What is claimed is:

1. An apparatus of a wake-up radio (WUR) non-access point (non-AP) station (STA), the apparatus comprising: memory; and processing circuitry, the processing circuitry comprising a primary connectivity radio (PCR) and a WUR receiver, the processing circuitry configured to:
encode a request frame for transmission to a WUR access point (AP) station (STA), the request frame including a request to the WUR AP STA for the WUR non-AP STA to enter a WUR mode,
the request frame further encoded to indicate a transition delay for the WUR non-AP STA to turn on the PCR,
configure the non-AP STA to transmit the request frame,
decode a response frame from the WUR AP STA, the response frame indicating acceptance or denial of the request, and
decode a wake-up frame from the WUR AP STA, wherein the WUR receiver is configured to turn on the PCR in response to the decoding of the wake-up frame,
wherein the processing circuitry is further configured to encode the request frame to further indicate duty cycle information for the PCR, and wherein the response frame further indicates a negotiated duty cycle of the WUR receiver, wherein the wake-up frame is received according to the negotiated duty cycle.

2. The apparatus of claim 1 , wherein the processing circuitry is further configured to enter the WUR mode in response to the response frame indicating acceptance of the request.

3. The apparatus of claim 1 , wherein the processing circuitry is further configured to not enter the WUR mode in response to the response frame indicating denial of the request.

4. The apparatus of claim 1 , wherein the processing circuitry is further configured to operate the WUR receiver consistent with the negotiated duty cycle information.

5. The apparatus of claim 1 , wherein the processing circuitry includes a receiver, the receiver including first processing circuitry configured as the PCR and separate second processing circuitry configured as the WUR receiver.

6. The apparatus of claim 1 , wherein the processing circuitry comprises a baseband processor.

7. The apparatus of claim 1 , wherein the primary connectivity radio comprises a WLAN (wireless local area network) radio, and the WLAN radio is configured to transmit the request to the WUR AP.

8. The apparatus of claim 7 , wherein the WLAN radio is coupled with an antenna.

9. A method for a wake-up radio (WUR) non-access point (non-AP) station (STA), the method comprising:
encoding a request frame for transmission to a WUR access point (AP) station (STA), the request frame including a request to the WUR AP STA for the WUR non-AP STA to enter a WUR mode;
encoding the request frame to indicate a transition delay for the WUR non-AP STA to turn on a primary connectivity radio (PCR);
configuring the non-AP STA to transmit the request frame;
decoding a response frame from the WUR AP STA, the response frame indicating acceptance or denial of the request; and
decoding, by a WUR receiver of the WUR non-AP STA, a wake-up frame from the WUR AP STA,
turning on the PCR in response to the decoding of the wake-up frame,
wherein the method further comprising encoding the request frame to indicate duty cycle information for the WUR receiver, the response frame further decoded to determine a negotiated duty cycle of the WUR receiver, wherein the wake-up frame is received by the WUR non-AP STA according to the negotiated duty cycle.

10. The method of claim 9 , further comprising operating the WUR receiver consistent with the negotiated duty cycle information.

11. An apparatus of a wake-up radio (WUR) access point (AP) station (STA), the apparatus comprising: memory; and processing circuitry, the processing circuitry configured to:
decode a request frame from a WUR non-access point (non-AP) station (STA), the request frame including a request to the WUR AP STA for the WUR non-AP STA to enter a WUR mode,
decode the request frame to determine a transition delay for the WUR non-AP STA to turn on a primary connectivity radio (PCR),
encode a response frame for transmission to the WUR AP STA, the response frame encoded to indicate acceptance or denial of the request,
configure the WUR AP to transmit the response frame,
encode a wake-up frame for transmission to the WUR non-AP STA, and
configure the WUR AP to transmit the wake-up frame in accordance with the transition delay,
wherein the request frame further decoded to determine a duty cycle information for a WUR receiver of the WUR non-AP STA, the response frame further encoded to indicate a negotiated duty cycle of the WUR receiver of the WUR non-AP STA based on the duty cycle information indicated in the request frame, wherein the WUR AP is configured to transmit the wake-up frame in further accordance with the negotiated duty cycle.

12. The apparatus of claim 11 , wherein the processing circuitry is further configured to encode the response indicating acceptance of the request.

13. The apparatus of claim 12 , wherein the processing circuitry is further configured to enter the WUR mode for the WUR non-AP STA in response to acceptance of the request.

14. The apparatus of claim 11 , wherein the processing circuitry is further configured to encode the response indicating denial of the request.

15. The apparatus of claim 11 , wherein the processing circuitry comprises a baseband processor.

16. The apparatus of claim 11 , further comprising a WLAN (wireless local area network) radio to transmit the response to the WUR non-AP.

17. The apparatus of claim 16 , wherein the WLAN radio is coupled with an antenna.

Assignees

• Intel Ip Corp

Inventors

• Huang Po-Kai
• Park Minyoung

Classifications

• H04W52/0216

  using a pre-established activity schedule, e.g. traffic indication frame · CPC title

• H04W52/0229 Primary

  where the received signal is a wanted signal · CPC title

• H04W84/12

  WLAN [Wireless Local Area Networks] · CPC title

• Y02D70/164

  Cross-Sectional Technologies · mapped topic

• Y02D70/12

  Cross-Sectional Technologies · mapped topic