Infrastructure triggering techniques to facilitate secure ultra-wideband (UWB) ranging
Presented herein are infrastructure triggering techniques for secure Ultra-Wideband (UWB) ranging. In one example, a method may include providing UWB ranging parameters to a mobile device via a first radio communication, wherein the first radio communication is a non-UWB radio communication; and triggering the mobile device to perform UWB ranging with a UWB anchor, wherein the triggering is performed using a second radio communication. In another example, a method may include, obtaining, by a mobile device, UWB ranging parameters for a geographic area; obtaining a UWB ranging instruction for the geographic area; and performing UWB ranging with a target UWB anchor based on the UWB ranging parameters and the UWB ranging instruction.
1. A method comprising:
obtaining, from a mobile device via a first long-range radio communication, a query for ultra-wideband (UWB) ranging parameters, wherein the query includes a UWB Media Access Control (MAC) address for the mobile device, a long-range radio MAC address for the mobile device, and a short-range radio MAC address for the mobile device;
providing the UWB ranging parameters to the mobile device via a second long-range radio communication; and
triggering utilizing a short-range radio communication, the mobile device to perform UWB ranging with a UWB anchor.
2. The method of claim 1 , wherein the short-range radio communication is a Bluetooth radio communication.
3. The method of claim 2 , wherein the triggering is performed by broadcasting a Bluetooth Universally Unique Identifier (UUID) indicating a UWB ranging instruction to the mobile device.
4. The method of claim 3 , wherein the UWB ranging instruction includes a first plurality of bits identifying a UWB channel number, a second plurality of bits identifying a ranging duration value, one or more third bits identifying a ranging end mode; and a fourth plurality of bits identifying a UWB MAC address for the UWB anchor.
5. The method of claim 1 , wherein the first long-range radio communication and the second long-range radio communication are each an Institute of Electrical and Electronics Engineers (IEEE) 802.11 radio communication.
6. The method of claim 5 , wherein providing the UWB ranging parameters to the mobile device triggers the mobile device to enable a short-range radio on the mobile device.
7. The method of claim 5 , wherein providing the UWB ranging parameters to the mobile device includes:
providing an IEEE 802.11 transmission to the mobile device indicating support for UWB ranging for a geographical area and indicating an availability of the UWB ranging parameters;
obtaining the query from the mobile device for the UWB ranging parameters, wherein the query is an IEEE 802.11 query; and
providing the UWB ranging parameters to the mobile device via an IEEE 802.11 response for the IEEE 802.11 query that includes the UWB ranging parameters.
8. The method of claim 7 , wherein the IEEE 802.11 query is an Access Network Query Protocol (ANQP) query and the IEEE 802.11 response is in an ANQP response.
9. The method of claim 8 , wherein the ANQP query and the ANQP response are encrypted.
10. The method of claim 1 , further comprising:
providing updated UWB ranging parameters to the mobile device.
11. The method of claim 10 , wherein the updated UWB ranging parameters are provided to the mobile device via a short-range radio unicast transmission to the mobile device.
12. The method of claim 1 , wherein the UWB ranging parameters include one or more of:
a group index identifying a group of UWB anchors for a geographic area, wherein the UWB anchor is a member of the group of UWB anchors for the geographic area;
a ranging group index for the mobile device;
common UWB ranging parameters applicable to all UWB anchors of the group of UWB anchors; and
a security key to enable encryption of UWB ranging data exchanged between the mobile device and the UWB anchor.
13. The method of claim 1 , further comprising:
providing location information for the mobile device as a result of the UWB ranging.
14. One or more non-transitory computer readable storage media encoded with instructions that, when executed by a processor, cause the processor to perform operations, comprising:
obtaining, from a mobile device via a first long-range radio communication, a query for ultra-wideband (UWB) ranging parameters, wherein the query includes a UWB Media Access Control (MAC) address for the mobile device, a long-range radio MAC address for the mobile device, and a short-range radio MAC address for the mobile device;
providing the UWB ranging parameters to the mobile device via a second long-range radio communication; and
triggering utilizing a short-range radio communication, the mobile device to perform UWB ranging with a UWB anchor.
15. The media of claim 14 , wherein the triggering is performed by broadcasting a Bluetooth Universally Unique Identifier (UUID) indicating a UWB ranging instruction to the mobile device.
16. The media of claim 15 , wherein the UWB ranging instruction includes a first plurality of bits identifying a UWB channel number, a second plurality of bits identifying a ranging duration value, one or more third bits identifying a ranging end mode; and a fourth plurality of bits identifying a UWB MAC address for the UWB anchor.
17. The media of claim 14 , wherein the UWB ranging parameters include one or more of:
a group index identifying a group of UWB anchors for a geographic area, wherein the UWB anchor is a member of the group of UWB anchors for the geographic area;
a ranging group index for the mobile device;
common UWB ranging parameters applicable to all UWB anchors of the group of UWB anchors; and
a security key to enable encryption of UWB ranging data exchanged between the mobile device and the UWB anchor.
18. A system comprising:
at least one memory element for storing data; and
at least one processor for executing instructions associated with the data, wherein executing the instructions causes the system to perform operations, comprising:
obtaining, from a mobile device via a first long-range radio communication, a query for ultra-wideband (UWB) ranging parameters, wherein the query includes a UWB Media Access Control (MAC) address for the mobile device, a long-range radio MAC address for the mobile device, and a short-range radio MAC address for the mobile device;
providing the UWB ranging parameters to the mobile device via a second long-range radio communication; and
triggering utilizing a short-range radio communication, the mobile device to perform UWB ranging with a UWB anchor.
19. The system of claim 18 , wherein the triggering is performed by broadcasting a Bluetooth Universally Unique Identifier (UUID) indicating a UWB ranging instruction to the mobile device.
20. The system of claim 19 , wherein the UWB ranging instruction includes a first plurality of bits identifying a UWB channel number, a second plurality of bits identifying a ranging duration value, one or more third bits identifying a ranging end mode; and a fourth plurality of bits identifying a UWB MAC address for the UWB anchor.