Method and device for transmitting and receiving wireless signals in wireless communication system

A device for wireless communication, the device comprising:

• a memory configured to store instructions;
• and
• a processor configured to perform operations by executing the instructions,
• wherein the operations of the processor comprise:
• receiving tracking reference signal (TRS) configuration information related to a radio resource control (RRC) Idle/Inactive state;
• receiving physical downlink shared channel (PDSCH) scheduling information in the RRC Idle/Inactive state;
• determining PDSCH resource mapping based on the PDSCH scheduling information;
• and
• receiving a PDSCH and a TRS in the RRC Idle/Inactive state based on the determined PDSCH resource mapping and the TRS configuration information,
• wherein based on i) that TRS resources related to the TRS configuration information overlap at least partially with PDSCH resources related to the PDSCH scheduling information and ii) that TRS availability information indicates that the TRS can be actually received, the processor is configured to determine the PDSCH resource mapping by assuming that the PDSCH is punctured on resources where the PDSCH and the TRS overlap.

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

• transmitting tracking reference signal (TRS) configuration information related to a radio resource control (RRC) Idle/Inactive state of a user equipment (UE);
• transmitting physical downlink shared channel (PDSCH) scheduling information during the RRC Idle/Inactive state of the UE;
• determining PDSCH resource mapping based on the PDSCH scheduling information;
• and
• transmitting a PDSCH and a TRS based on the determined PDSCH resource mapping and the TRS configuration information during the RRC Idle/Inactive state of the UE,
• wherein based on i) that TRS resources related to the TRS configuration information overlap at least partially with PDSCH resources related to the PDSCH scheduling information and ii) that TRS availability information indicates that the TRS can be actually transmitted, the BS punctures the PDSCH on resources where the PDSCH and the TRS overlap in determining the PDSCH resource mapping.

A base station (BS) for wireless communication, the BS comprising:

• a transceiver;
• and
• a processor configured to control the transceiver to transmit tracking reference signal (TRS) configuration information related to a radio resource control (RRC) Idle/Inactive state of a user equipment (UE), to transmit physical downlink shared channel (PDSCH) scheduling information during the RRC Idle/Inactive state of the UE, to determine PDSCH resource mapping based on the PDSCH scheduling information, and to transmit a PDSCH and a TRS based on the determined PDSCH resource mapping and the TRS configuration information during the RRC Idle/Inactive state of the UE,
• wherein based on i) that TRS resources related to the TRS configuration information overlap at least partially with PDSCH resources related to the PDSCH scheduling information and ii) that TRS availability information indicates that the TRS can be actually transmitted, the processor is configured to puncture the PDSCH on resources where the PDSCH and the TRS overlap in determining the PDSCH resource mapping.