Method and device for configuring sounding reference signal transmission for estimating location of inactive terminal in next generation mobile communication system

A user equipment (UE) in a wireless communication system, the UE comprising:

• a transceiver, and
• a controller coupled with the transceiver, and configured to;
• receive, from a first base station supporting a first cell, a radio resource control (RRC) release message including positioning configuration information for a sounding reference signal (SRS) in an RRC inactive state, wherein the positioning configuration information for the SRS in the RRC inactive state includes a cell list for a validity area;
• identify whether a second cell is included in the cell list for the validity area;
• in case that the second cell is included in the cell list for the validity area, transmit, to a second base station supporting the second cell, the SRS in the RRC inactive state.

A first base station supporting a first cell in a wireless communication system, the first base station comprising:

• a transceiver, and
• a controller coupled with the transceiver, and configured to;
• receive, from a user equipment (UE), UE capability information for indicating whether the UE supports a sounding reference signal (SRS) in a radio resource control (RRC) inactive state,
• transmit, to the UE, a RRC release message including positioning configuration information for the SRS in the RRC inactive state, wherein the positioning configuration information for the SRS in the RRC inactive state includes a cell list for a validity area,
• wherein in case that a second cell is included in the cell list for the validity area, the SRS is transmitted to a second base station supporting the second cell in the RRC inactive state.