SYSTEMS, METHODS, AND DEVICES FOR LOW-POWER SECURE WAKEUP OPERATIONS FOR WIRELESS DEVICES
Systems, methods, and devices provide low-power wakeup operations for wireless devices. Methods include receiving an audio signal from a first wireless device at a second wireless device via an audio transducer, the audio signal including a plurality of encoded data values, and determining, using a processing device of the second wireless device, if the received audio signal includes a valid wakeup code. Methods also include transitioning a transceiver of the second wireless device from a sleep mode to a wake mode in response to determining that the audio signal includes a valid wakeup signal.
1 . A method comprising:
receiving an audio signal from a first wireless device at a second wireless device via an audio transducer, the audio signal comprising a plurality of encoded data values;
determining, using a processing device of the second wireless device, if the received audio signal includes a valid wakeup code; and
transitioning a transceiver of the second wireless device from a sleep mode to a wake mode in response to determining that the audio signal includes a valid wakeup signal.
2 . The method of claim 1 , wherein the first wireless device is a head unit included in an automobile, and wherein the second wireless device is a key fob.
3 . The method of claim 1 , wherein the audio transducer is a microelectromechanical systems (MEMS) microphone.
4 . The method of claim 1 , wherein the plurality of encoded data values comprises a challenge code encoded via one or more audio encoding algorithms.
5 . The method of claim 4 , wherein the challenge code is generated based, at least in part, on a pairing token associated with the first wireless device and the second wireless device.
6 . The method of claim 1 , wherein the transceiver is a Bluetooth transceiver or an ultrawideband (UWB) transceiver.
7 . The method of claim 1 further comprising:
transitioning a plurality of secure processing elements of the second wireless device from a sleep mode to a wake mode in response to determining that the audio signal includes a valid wakeup signal.
8 . The method of claim 1 further comprising:
performing, using the transceiver, a secure ranging operation with the first wireless device in accordance with a wireless protocol of the transceiver.
9 . The method of claim 8 further comprising:
granting access to a vehicle associated with the first wireless device in response to completion of the secure ranging operation.
10 . A system comprising:
an audio transducer;
a transceiver configured to be compatible with a wireless protocol; and
a processing device comprising processing elements configured to:
receive an audio signal from a first wireless device at a second wireless including the processing device, the audio signal being received via the audio transducer and comprising a plurality of encoded data values;
determine if the received audio signal includes a valid wakeup code; and
transition the transceiver from a sleep mode to a wake mode in response to determining that the audio signal includes a valid wakeup signal.
11 . The system of claim 10 , wherein the first wireless device is a head unit included in an automobile, and wherein the second wireless device is a key fob.
12 . The system of claim 10 , wherein the audio transducer is a microelectromechanical systems (MEMS) microphone, and wherein the transceiver is a Bluetooth transceiver or an ultrawideband (UWB) transceiver.
13 . The system of claim 10 , wherein the plurality of encoded data values comprises a challenge code encoded via one or more audio encoding algorithms, and wherein the challenge code is generated based, at least in part, on a pairing token associated with the first wireless device and the second wireless device.
14 . The system of claim 10 , wherein the processing device is further configured to:
transition a plurality of secure processing elements of the second wireless device from a sleep mode to a wake mode in response to determining that the audio signal includes a valid wakeup signal.
15 . The system of claim 10 , wherein the processing device is further configured to:
perform a secure ranging operation with the first wireless device in accordance with a wireless protocol of the transceiver.
16 . A device comprising:
processing elements configured to:
receive an audio signal from a first wireless device at a second wireless including the processing elements, the audio signal being received via an audio transducer and comprising a plurality of encoded data values;
determine if the received audio signal includes a valid wakeup code; and
transition a transceiver of the second wireless device from a sleep mode to a wake mode in response to determining that the audio signal includes a valid wakeup signal.
17 . The device of claim 16 , wherein the first wireless device is a head unit included in an automobile, and wherein the second wireless device is a key fob.
18 . The device of claim 16 , wherein the audio transducer is a microelectromechanical systems (MEMS) microphone, and wherein the transceiver is a Bluetooth transceiver or an ultrawideband (UWB) transceiver.
19 . The device of claim 16 , wherein the plurality of encoded data values comprises a challenge code encoded via one or more audio encoding algorithms, and wherein the challenge code is generated based, at least in part, on a pairing token associated with the first wireless device and the second wireless device.
20 . The device of claim 16 , wherein the processing elements are further configured to:
transition a plurality of secure processing elements of the second wireless device from a sleep mode to a wake mode in response to determining that the audio signal includes a valid wakeup signal.