Methods and signaling for enabling carrier phase-based positioning in a wireless communication system

A method for positioning a third node in a wireless communication system, the method comprising:

• receiving, by at least one third node, a capability request signal from at least one of at least one first node and at least one second node;
• transmitting, by the at least one third node, a capability response signal to at least one of the at least one first node and the at least one second node, wherein the capability response signal comprises at least one of at least one frequency resource supported, at least one supported positioning method, support for carrier phase positioning, at least one measurement supported, at least one granularity of performing the at least one measurement supported, at least one technique supported to resolve integer ambiguity;
• receiving, by the at least one third node, a configuration signal from at least one of the at least one first node and the at least one second node, wherein the configuration signal comprises at least one of the at least one frequency resource to be used for the measurement, at least one measurement to be used, at least one granularity of performing the at least one measurement, at least one method supported to resolve integer-ambiguity, and at least one scheduling information and configuration information of the at least one reference signal to be used for the measurement;
• receiving, by the at least one third node, at least one reference signal from the at least one second node;
• performing, by the at least one third node, at least one of at least one measurement on the at least one reference signal and estimating a position of the at least one third node, wherein the at least one measurement is with respect to Antenna Reference Point;
• and
• transmitting, by the at least one third node, at least one report comprising at least one of at least one measurement and the position of the at least one third node to at least one of the at least one first node and the at least one second node,
• wherein the at least one measurement comprises at least one of at least one carrier phase measurement and at least one timing-based measurement, of the at least one reference signal received from the at least one second node, and
• wherein the at least one carrier phase measurement comprises of at least one carrier phase of at least one the received reference signal and at least one timestamp of the measurement.