Method and apparatus for transmitting phase tracking signal considering multi-panel simultaneous transmission in wireless communication system

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

• transmitting, to a user equipment (UE), configuration information associated with an uplink (UL), the configuration information including sounding reference signal (SRS) resource set information including a first SRS resource set and a second SRS resource set, information indicating that at most two phase tracking reference signal (PT-RS) ports are used for the UL, and information for a configuration of simultaneous transmission across multi-panel (STxMP);
• transmitting, to the UE, downlink control information (DCI) including association information between a PT-RS port and a demodulation reference signal (DMRS) port;
• and
• receiving, based on the DCI, the PT-RS based on a first PT-RS port and a second PT-RS port, according to the received configuration of the STxMP,
• wherein the first PT-RS port is associated with at least one first DMRS port associated with the first SRS resource set, and the second PT-RS port is associated with at least one second DMRS port associated with the second SRS resource set.

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

• a transceiver;
• a controller coupled with the transceiver and configured to:
• receive, from a base station (BS), configuration information associated with an uplink (UL), the configuration information including sounding reference signal (SRS) resource set information including a first SRS resource set and a second SRS resource set, information indicating that at most two phase tracking reference signal (PT-RS) ports are used for the UL, and information for a configuration of simultaneous transmission across multi-panel (STxMP),
• receive, from the BS, downlink control information (DCI) including association information between a PT-RS port and a demodulation reference signal (DMRS) port, and
• transmit, based on the DCI, the PT-RS using a first PT-RS port and a second PT-RS port, according to the received configuration of the STxMP, and
• wherein the first PT-RS port is associated with at least one first DMRS port associated with the first SRS resource set, and the second PT-RS port is associated with at least one second DMRS port associated with the second SRS resource set.

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

• a transceiver;
• a controller coupled with the transceiver and configured to:
• transmit, to a user equipment (UE), configuration information associated with an uplink (UL), the configuration information including sounding reference signal (SRS) resource set information including a first SRS resource set and a second SRS resource set, information indicating that at most two phase tracking reference signal (PT-RS) ports are used for the UL, and information for a configuration of simultaneous transmission across multi-panel (STxMP),
• transmit, to the UE, downlink control information (DCI) including association information between a PT-RS port and a demodulation reference signal (DMRS) port, and
• receiving, based on the DCI, the PT-RS based on a first PT-RS port and a second PT-RS port, according to the received configuration of the STxMP, and
• wherein the first PT-RS port is associated with at least one first DMRS port associated with the first SRS resource set, and the second PT-RS port is associated with at least one second DMRS port associated with the second SRS resource set.