On Prospects of Positioning in 5G

Abstract

Technologies envisaged for a 5G communications system provide interesting prospects which are beneficial for cooperative positioning. Since 5G development and standardization in its first stage is still ongoing, there is a unique opportunity to develop and integrate mobile radio based positioning technology in 5G from the beginning. In this paper we discuss 5G concepts which support cooperative positioning. We address 5G prospects like smaller cells, higher mobile terminal densities and the capability of device-to-device communication. By using the Cram´er-Rao lower bound we investigate cooperative positioning performance for signal propagation delay based pseudo ranging in an exemplary typical urban environment. Numerical results for an exemplary environment have shown that with MT densities D > 1100 MTs per square kilometer provide sub-meter positioning accuracy with outage probabilities converging to zero.