Method and apparatus for allocating ptrs in next generation communication system

A terminal in a wireless communication system, the terminal comprising:

• a transceiver configured to transmit and receive a signal;
• and
• a controller coupled with the transceiver and configured to:
• identify a plurality of resource elements (REs) for a phase tracking reference signal (PTRS);
• receive, from a base station, the PTRS on at least one RE among the plurality of REs;
• and
• perform a phase tracking using the PTRS received on the at least one RE,
• wherein an RE on which another reference signal is received among the plurality of REs is not used for the receiving of the PTRS, and
• wherein the phase tracking is performed without the RE on which the other reference signal is received.

A method performed by a base station in a wireless communication system, the method comprising:

• identifying a plurality of resource elements (REs) for a phase tracking reference signal (PTRS);
• and
• transmitting, to a terminal, the PTRS on at least one RE among the plurality of REs, wherein the PTRS transmitted on the at least one RE is used to perform a phase tracking,
• wherein an RE on which another reference signal is transmitted among the plurality of REs is not used for the transmitting of the PTRS, and
• wherein the phase tracking is performed, by the terminal, without the RE on which the other reference signal is transmitted.

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

• a transceiver configured to transmit and receive a signal;
• and
• a controller coupled with the transceiver and configured to:
• identify a plurality of resource elements (REs) for a phase tracking reference signal (PTRS), and
• transmit, to a terminal, the PTRS on at least one RE among the plurality of REs, wherein the PTRS transmitted on the at least one RE is used to perform a phase tracking,
• wherein an RE on which another reference signal is transmitted among the plurality of REs is not used for the transmitting of the PTRS, and
• wherein the phase tracking is performed, by the terminal, without the RE on which the other reference signal is transmitted.