Apparatus and method for locating of phase tracking reference signal in wireless communication system

A user equipment (UE) for a phase tracking reference signal (PTRS), the UE comprising:

• at least one transceiver;
• and
• at least one processor operably coupled to the at least one transceiver,
• wherein the at least one processor is configured to:
• identify a frequency density and a PTRS offset for a resource block (RB), wherein the PTRS offset is associated with information specific to the UE,
• identify one or more RBs from a set of allocated RBs based on the frequency density and the PTRS offset, and
• control the at least one transceiver to transmit or receive at least one PTRS on the one or more RBs.

A base station (BS) for a phase tracking reference signal (PTRS), the BS comprising:

• at least one transceiver;
• and
• at least one processor operably coupled to the at least one transceiver,
• wherein the at least one processor is configured to:
• determine one or more resource blocks (RBs) from a set of allocated RBs based on a frequency density and a PTRS offset for an RB, wherein the PTRS offset is associated with information specific to a user equipment (UE), and
• transmit or receive at least one PTRS on the one or more RBs, and wherein the PTRS offset is specific to the UE.