Differential round trip time based positioning
AssigneeQUALCOMM Incorporated
InventorsSony AKKARAKARAN, Taesang YOO, Joseph Binamira SORIAGA, Tao LUO, Alexandros MANOLAKOS
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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.
Claims1
A method performed by a base station, the method comprising:
- transmitting a first round-trip time measurement signal having a first transmit group delay;
- transmitting a second round-trip time measurement signal having a second transmit group delay;
- and
- sending, to a receiving entity, information indicating the first transmit group delay and the second transmit group delay.
Dependencies are inferred from the claim text.