Differential round trip time based positioning
AssigneeQUALCOMM Incorporated
InventorsSony Akkarakaran, Taesang Yoo, Joseph Binamira Soriaga, Tao Luo, Alexandros Manolakos
Life of this patent
Estimating the term…
Abstract
Disclosed are techniques for determining a position of a user equipment (UE). A differential round-trip-time (RTT) based positioning procedure is proposed to determine the UE position. In this technique, the UE position is determined based on the differences of the RTTs between the UE and a plurality of base stations. The differential RTT based positioning procedure has much looser inter-gNodeB timing synchronization requirements than the OTDOA technique and also has much looser group delay requirements than traditional RTT procedures.
Claims29
A method at a wireless device, comprising:
- providing one or more group delay parameters for the wireless device to a positioning entity,
- wherein the one or more group delay parameters comprise a round-trip-time (RTT) type parameter indicating whether RTTs reported by the wireless device are measured RTTs or actual RTTs, and
- wherein it is determined that a group delay of the wireless device is included in the reported RTTs when the RTT type parameter indicates that the reported RTTs are measured RTTs.
A wireless device, comprising:
- at least one transceiver;
- at least one memory component;
- and
- at least one processor,
- wherein the at least one transceiver, the at least one memory component, and the at least one processor are configured to:
- provide one or more group delay parameters for the wireless device to a positioning entity,
- wherein the one or more group delay parameters comprise a round-trip-time (RTT) type parameter indicating whether RTTs reported by the wireless device are measured RTTs or actual RTTs, and
- wherein it is determined that a group delay of the wireless device is included in the reported RTTs when the RTT type parameter indicates that the reported RTTs are measured RTTs.
A non-transitory computer-readable medium storing computer-executable instructions for a wireless device, the computer-executable instructions comprising:
- one or more instructions causing the wireless device to provide one or more group delay parameters for the wireless device to a positioning entity,
- wherein the one or more group delay parameters comprise a round-trip-time (RTT) type parameter indicating whether RTTs reported by the wireless device are measured RTTs or actual RTTs, and
- wherein it is determined that a group delay of the wireless device is included in the reported RTTs when the RTT type parameter indicates that the reported RTTs are measured RTTs.
Dependencies are inferred from the claim text.