Sidelink positioning in cellular system

An apparatus comprising means for performing:

• receiving, over a sidelink from a terminal device, a message comprising at least one information element requesting the apparatus to report its location to the terminal device;
• transmitting, in response to the message and over the sidelink to the terminal device, a location report comprising at least one information element indicating a location of the apparatus and an accuracy metric indicating accuracy of the location.

A method comprising:

• transmitting, by a terminal device over a sidelink, a message comprising at least one information element requesting at least one anchor terminal device to report its location to the terminal device;
• receiving, by the terminal device over the sidelink from the at least one anchor terminal device, a location report comprising at least one information element indicating a location of the reporting anchor terminal device and an accuracy metric indicating accuracy of the location;
• determining, by the terminal device, a location estimate of the terminal device based on the accuracy metric and the location of the at least one anchor terminal device.