Distributed time synchronization for time difference of arrival (tdoa) using ultra-wideband (uwb)
AssigneeQUALCOMM Incorporated
InventorsVarun Amar REDDY, Alexandros MANOLAKOS, Pooria PAKROOH, Krishna Kiran MUKKAVILLI
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Abstract
In some implementations, a current synchronization reference anchor for the group of RF positioning anchors may obtain metric information from each radio frequency (RF) positioning anchor of the group of RF positioning anchors. The current synchronization reference anchor may select the new synchronization reference anchor from the group of RF positioning anchors based at least in part on the metric information.
Claims30
A method of designating a new synchronization reference anchor for a group of radio frequency (RF) positioning anchors to enable downlink Time Difference of Arrival (DL-TDoA) positioning of mobile devices, the method comprising:
- obtaining, at a current synchronization reference anchor for the group of RF positioning anchors, metric information from each RF positioning anchor of the group of RF positioning anchors;
- and
- selecting, with the current synchronization reference anchor, the new synchronization reference anchor from the group of RF positioning anchors based at least in part on the metric information.
A device for designating a new synchronization reference anchor for a group of radio frequency (RF) positioning anchors to enable downlink Time Difference of Arrival (DL-TDoA) positioning of mobile devices, the device comprising:
- a transceiver;
- a memory;
- and
- one or more processors communicatively coupled with the transceiver and the memory, wherein the one or more processors are configured to:
- obtain, at a current synchronization reference anchor for the group of RF positioning anchors, metric information from each RF positioning anchor of the group of RF positioning anchors;
- and
- select, with the current synchronization reference anchor, the new synchronization reference anchor from the group of RF positioning anchors based at least in part on the metric information.
An apparatus for designating a new synchronization reference anchor for a group of radio frequency (RF) positioning anchors to enable downlink Time Difference of Arrival (DL-TDoA) positioning of mobile devices, the apparatus comprising:
- means for obtaining, at a current synchronization reference anchor for the group of RF positioning anchors, metric information from each RF positioning anchor of the group of RF positioning anchors;
- and
- means for selecting, with the current synchronization reference anchor, the new synchronization reference anchor from the group of RF positioning anchors based at least in part on the metric information.
A non-transitory computer-readable medium storing instructions for designating a new synchronization reference anchor for a group of radio frequency (RF) positioning anchors to enable downlink Time Difference of Arrival (DL-TDoA) positioning of mobile devices, the instructions comprising code for:
- obtaining, at a current synchronization reference anchor for the group of RF positioning anchors, metric information from each RF positioning anchor of the group of RF positioning anchors;
- and
- selecting, with the current synchronization reference anchor, the new synchronization reference anchor from the group of RF positioning anchors based at least in part on the metric information.
Dependencies are inferred from the claim text.