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Future sub-THz cellular deployments may be utilized to complement thecoverage of the global positioning system (GPS) and provide centimeter-levelaccuracy. In this work, we use measurement data at 142 GHz to test a map-basedposition location algorithm in an outdoor urban microcell (UMi) environment. Weutilize an extended Kalman filter (EKF) to track the position of the userequipment (UE) along a rectangular track, with the transmitter-receiverseparation distances varying from 24.3 m to 52.8 m. The position and velocityof the UE are tracked by the EKF, with measurements of the angle of arrival andtime of flight information obtained along an outdoor track, to provide a meanaccuracy of 24.8 cm at 142 GHz, over 34 UE locations, using a single basestation in line-of-sight and non-line-of-sight.

Outdoor sub-THz Position Location and Tracking using Field Measurements at 142 GHz