Methods and apparatuses for positioning based on signal correlation function characteristics feedback

US10433276B2 · kind B2 · utility

Assignee

• Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

• Fredrik Gunnarsson · Linköping, SE
• Sara Modarres Razavi · Linköping, SE
• Henrik Rydén · Solna, SE
• Meng Wang · Sundbyberg, SE
• Ali Zaidi · Järfälla, SE

Key dates

• Filing date: Aug 15, 2016
• Grant date: Oct 1, 2019
• Expiry date: Aug 15, 2036

Classification

• Technology area (CPC G): Physics
• CPC primary: G01S11/08
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A method, apparatus, and system are provided for facilitating positioning based on signal correlation function characteristic feedback. In an embodiment, the method may involve steps performed by a network node in communication with a 5 wireless communication device (WCD) and a plurality of base stations. The network node receives, from the WCD, location information including position reference signal (PRS) correlation function characteristics of a cross-correlation between a received downlink signal and a transmitted PRS for each base station from the plurality of base stations. The network node determines a position of the WCD using 0 the PRS correlation function characteristics. The WCD may initiate the transmission of the PRS correlation function characteristics on its own, or in response to a request to do so from the network node.