Low-power wake-up radio discovery procedure and frame format
A wireless communication device includes a memory, and a processing circuitry coupled to the memory. The processing circuitry is to process a wake-up radio (WUR) frame transmitted by an Access Point (AP), the WUR frame comprising a medium access control (MAC) header and a frame body, the MAC header comprising a Frame Control field, an Address field, and a Type Dependent (TD) Control field, wherein the Frame Control field comprises a Type field; determine, based on a value of the Type field, that the WUR frame is a WUR Discovery frame; determine an identifier (ID) of the AP from the WUR Discovery frame; and in response to a determination that the WUR frame is a WUR Discovery frame, cause a Primary Connectivity Radio (PCR) corresponding to the wireless communication device to communicate with the AP based on the WUR Discovery frame.
1. A wireless communication device including a memory, and a processing circuitry coupled to the memory, the processing circuitry to:
process a wake-up radio (WUR) frame transmitted by an Access Point (AP), the WUR frame comprising a medium access control (MAC) header and a frame body, the MAC header comprising a Frame Control field and a Type Dependent (TD) Control field, wherein the Frame Control field comprises a Type field;
determine, based on a value of the Type field, that the WUR frame is a WUR Discovery frame, wherein the value of the Type field is different from a second value for the Type field to identify a WUR Discovery frame and a third value for the Type field to identify a WUR beacon frame;
determine an identifier (ID) of the AP from the WUR Discovery frame; and
in response to a determination that the WUR frame is a WUR Discovery frame, cause a Primary Connectivity Radio (PCR) corresponding to the wireless communication device to communicate with the AP based on the WUR Discovery frame.
2. The device of claim 1 , the MAC header comprising an Address field, wherein the Address field includes at least a portion of the ID.
3. The device of claim 1 , wherein the frame body includes at least a portion of the ID.
4. The device of claim 1 , wherein the TD Control field includes at least a portion of the ID.
5. The device of claim 1 , wherein the ID comprises one or more of: a basic service set identifier (BSSID) of the AP, a hash value of the BSSID of the AP, a transmitted BSSID of a multiple BSSID set to which the AP belongs, a hash value of the transmitted BSSID, a random number, a Service Set Identifier (SSID) corresponding to the AP, a hash value of the SSID, or a hash value of a Service ID.
6. The device of claim 1 , the MAC header comprising an Address field, wherein the Address field includes a first portion of the ID and the TD control field includes a second portion of the ID.
7. The device of claim 1 , the MAC header comprising an Address field, wherein the ID comprises a hash value of a BSSID of the AP and the Address field includes the hash value of the BSSID.
8. The device of claim 1 , wherein the ID comprises a hash value of a SSID corresponding to the AP, and the frame body includes the hash value of the SSID.
9. The device of claim 1 , wherein the processing circuitry is further to determine an operating class and a primary 20 MHz channel of a Primary Connectivity Radio (PCR) of the AP from a channel information field included in the frame body.
10. The device of claim 1 , wherein communication with the AP based on the WUR Discovery frame comprises transmission of a broadcast probe request frame.
11. The device of claim 10 , wherein the broadcast probe request frame comprises a WUR element and a service set identifier (SSID) element, the WUR element comprising the ID and the SSID element comprising a WUR SSID that is reserved to indicate WUR operations or WUR Discovery operations.
12. The device of claim 10 , wherein the broadcast probe request frame comprises a WUR element including the ID and one or more additional IDs from one or more additional WUR Discovery frames transmitted by one or more additional APs.
13. The device of claim 1 , wherein the processing circuitry is further to process a probe response frame transmitted by the AP, the probe response frame comprising the ID.
14. The device of claim 1 , wherein the processing circuitry is further to initiate an association between the wireless communication device and the AP based on information received in the WUR Discovery frame and based on the communication with the AP based on the WUR Discovery frame.
15. The device of claim 1 , further including a radio integrated circuit coupled to the processing circuitry, and a front-end module coupled to the radio integrated circuit.
16. The device of claim 15 , further including a plurality of antennas coupled to the front-end module.
17. The device of claim 1 , further including the PCR.
18. A method to be performed at a wireless communication device that includes a memory and a processing circuitry coupled to the memory, the method including:
processing, by the processing circuitry, a wake-up radio (WUR) frame transmitted by an Access Point (AP), the WUR frame comprising a medium access control (MAC) header and a frame body, the MAC header comprising a Frame Control field and a Type Dependent (TD) Control field, wherein the Frame Control field comprises a Type field;
determining, by the processing circuitry based on a value of the Type field, that the WUR frame is a WUR Discovery frame, wherein the value of the Type field is different from a second value for the Type field to identify a WUR Discovery frame and a third value for the Type field to identify a WUR beacon frame;
determining, by the processing circuitry, an identifier (ID) of the AP from the WUR Discovery frame; and
in response to a determination that the WUR frame is a WUR Discovery frame, causing, by the processing circuitry, a Primary Connectivity Radio (PCR) corresponding to the wireless communication device to communicate with the AP based on the WUR Discovery frame.
19. The method of claim 18 , the MAC header comprising an Address field, wherein the Address field comprises a first portion of the ID of the AP and the Type Dependent Control field comprises a second portion of the ID.
20. The method of claim 18 , further comprising:
receiving the WUR Discovery frame via a wake-up radio on a first frequency channel; and
generating a probe request frame in response to the WUR Discovery frame, the probe request frame comprising the ID, wherein the signals comprise the probe request frame.
21. The method of claim 20 , further comprising processing a probe response frame transmitted by the AP in response to the probe request frame, the probe response frame comprising the ID.
22. A wireless communication device that includes a memory and a processing circuitry coupled to the memory, the device including:
means for processing a wake-up radio (WUR) frame transmitted by an Access Point (AP), the WUR frame comprising a medium access control (MAC) header and a frame body, the MAC header comprising a Frame Control field and a Type Dependent (TD) Control field, wherein the Frame Control field comprises a Type field;
means for determining, based on a value of the Type field, that the WUR frame is a WUR Discovery frame, wherein the value of the Type field is different from a second value for the Type field to identify a WUR Discovery frame and a third value for the Type field to identify a WUR beacon frame;
means for determining an identifier (ID) of the AP from the WUR Discovery frame; and
means for in response to a determination that the WUR frame is a WUR Discovery frame, causing a Primary Connectivity Radio (PCR) corresponding to the wireless communication device to communicate with the AP based on the WUR Discovery frame.
23. The device of claim 22 , wherein the TD Control field includes one of at least a portion of the ID or a partial Timing Synchronization Function (TSF).
24. The device of claim 22 , the MAC header comprising an Address field, wherein the Address field of the MAC header comprises at least a portion of the ID.