Systems and methods of narrowband discovery for wireless devices
Systems, methods, and computer readable medium for performing narrowband device discovery include a first ultra-wideband (UWB) device that transitions from a first narrowband channel to a second narrowband channel of a plurality of defined narrowband channels, to broadcast a discovery beacon for receipt by one or more UWB devices. The first UWB device can receive, from a second UWB device, in the second narrowband channel, a request for at least one service to be performed between the first UWB device and the second UWB device. The first UWB device can send to the second UWB device in response to the request, a response frame.
1 . A method comprising:
transitioning, by a first ultra-wideband (UWB) device, from a first narrowband channel to a second narrowband channel of a plurality of defined narrowband channels, to broadcast a discovery beacon for receipt by one or more UWB devices;
receiving, by the first UWB device from a second UWB device, in the second narrowband channel, a request for a ranging operation to be performed between the first UWB device and the second UWB device; and
sending, by the first UWB device to the second UWB device in response to the request, a response frame indicating an acceptance, modification, or rejection of the request for the ranging operation.
2 . The method of claim 1 , comprising:
broadcasting, by the first UWB device, the discovery beacon after transitioning to the second narrowband channel; and
receiving, by the first UWB device from the second UWB device, the request in response to the second UWB device detecting the discovery beacon in the second narrowband channel.
3 . The method of claim 2 , wherein the discovery beacon comprises a time synchronization field, and wherein the second UWB device synchronizes one or more clocks of the second UWB device according to the time synchronization field.
4 . The method of claim 1 , wherein the response frame includes a field indicating at least one of: the acceptance, the modification, or the rejection of the request for the ranging operation.
5 . The method of claim 1 , wherein at least one of: the request or the response frame comprise an indication of one or more channels for performing the ranging operation between the first UWB device and the second UWB device.
6 . The method of claim 1 , comprising:
establishing, by the first UWB device, at least one of: a controller role for the first UWB device, or a controlee role for the second UWB device.
7 . The method of claim 1 , comprising:
indicating, by the first UWB device in the response frame, a time or duration to perform the ranging operation; and
causing, via the response frame, the second UWB device to operate in a sleep or low power mode over a period of time, prior to the time or duration to perform the ranging operation.
8 . A first ultra-wideband (UWB) device comprising:
at least one processor configured to:
transition the first UWB device from a first narrowband channel to a second narrowband channel of a plurality of defined narrowband channels, to broadcast a discovery beacon for receipt by one or more UWB devices;
receive, via a transceiver from a second UWB device, in the second narrowband channel, a request for a ranging operation to be performed between the first UWB device and the second UWB device; and
send, via the transceiver to the second UWB device in response to the request, a response frame indicating an acceptance, modification, or rejection of the request for the ranging operation.
9 . The first UWB device of claim 8 , wherein the at least one processor is configured to:
broadcast, via the transceiver, the discovery beacon after transitioning to the second narrowband channel; and
receive, via the transceiver from the second UWB device, the request in response to the second UWB device detecting the discovery beacon in the second narrowband channel.
10 . The first UWB device of claim 9 , wherein the discovery beacon comprises a time synchronization field, and wherein the second UWB device synchronizes one or more clocks of the second UWB device according to the time synchronization field.
11 . The first UWB device of claim 8 , wherein the response frame includes a field indicating at least one of: the acceptance, the modification, or the rejection of the request for the ranging operation.
12 . The first UWB device of claim 8 , wherein the at least one processor is configured to:
establish at least one of: a controller role for the first UWB device, or a controlee role for the second UWB device.
13 . The first UWB device of claim 8 , wherein the at least one processor is configured to:
indicate, in the response frame, a time or duration to perform the ranging operation; and
cause, via a response frame, the second UWB device to operate in a sleep or low power mode over a period of time, prior to the time or duration to perform the ranging operation.
14 . The first UWB device of claim 8 , wherein at least one of the request or the response frame comprise an indication of one or more channels for performing the ranging operation between the first UWB device and the second UWB device.
15 . The non-transitory computer readable medium of claim 14 , wherein the instructions further cause the one or more processors to:
broadcast the discovery beacon after transitioning to the second narrowband channel; and
receive, from the second UWB device, the request in response to the second UWB device detecting the discovery beacon in the second narrowband channel.
16 . The non-transitory computer readable medium of claim 14 , wherein the discovery beacon comprises a time synchronization field, and wherein the second UWB device synchronizes one or more clocks of the second UWB device according to the time synchronization field.
17 . The non-transitory computer readable medium of claim 14 , wherein the response frame includes a field indicating at least one of: the acceptance, the modification, or the rejection of the request for the ranging operation.
18 . The non-transitory computer readable medium of claim 14 , wherein at least one of: the request or the response frame comprise an indication of one or more channels for performing the ranging operation between the first UWB device and the second UWB device.
19 . The non-transitory computer readable medium of claim 14 , wherein the instructions further cause the one or more processors to establish at least one of a controller role for the first UWB device, or a controlee role for the second UWB device.
20 . A non-transitory computer readable medium storing instructions that, when executed by one or more processors of a first ultra-wideband (UWB) device, cause the one or more processors to:
transition the first UWB device from a first narrowband channel to a second narrowband channel of a plurality of defined narrowband channels, to broadcast a discovery beacon for receipt by one or more UWB devices;
receive, via a transceiver from a second UWB device, in the second narrowband channel, a request for a ranging operation to be performed between the first UWB device and the second UWB device; and
send, via the transceiver to the second UWB device in response to the request, a response frame indicating an acceptance, modification, or rejection of the request for the ranging operation.