Method for transmitting and receiving data in wireless communication system and apparatus therefor

A user equipment (UE) receiving data supported by a plurality of base stations in a wireless communication system, the UE comprising:

• one or more transceivers;
• one or more processors;
• and
• one or more memories that store instructions for operations executed by the one or more processors, and are connected to the one or more processors,
• wherein the operations include:
• receiving, from a first base station, first downlink control information (DCI), and receiving, from a second base station, second DCI;
• and
• receiving, from the first base station, first data in a first resource region and a second resource region allocated based on the first DCI, and receiving, from the second base station, second data in the first resource region allocated based on the second DCI,
• wherein rate matching of resources related to a Demodulation Reference Signal (DMRS) is configured differently in the first resource region and the second resource region.

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

• transmitting, a user equipment (UE), downlink control information (DCI), and
• transmitting, to the UE, the data in a resource region allocated for the data based on the DCI,
• wherein the resource region includes a first resource region used overlapping with another base station and a second resource region independently used by the base station, and
• wherein rate matching of resources related to a Demodulation Reference Signal (DMRS) is configured differently in the first resource region and the second resource region.

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

• one or more transceivers;
• one or more processors;
• and
• one or more memories that store instructions for operations executed by the one or more processors, and are connected to the one or more processors,
• wherein the operations include:
• transmitting, a user equipment (UE), downlink control information (DCI), and
• transmitting, to the UE, the data in a resource region allocated for the data based on the DCI,
• wherein the resource region includes a first resource region used overlapping with another base station and a second resource region independently used by the base station, and
• wherein rate matching of resources related to a Demodulation Reference Signal (DMRS) is configured differently in the first resource region and the second resource region.

A device comprising one or more memories and one or more processors functionally connected to the one or more memories,

• wherein the one or more processors control the device to:
• receive, from a first base station, first downlink control information (DCI), and receive, from a second base station, second DCI;
• and
• receive, from the first base station, first data in a first resource region and a second resource region allocated based on the first DCI, and receive, from the second base station, second data in the first resource region allocated based on the second DCI,
• wherein rate matching of resources related to a Demodulation Reference Signal (DMRS) is configured differently in the first resource region and the second resource region.

One or more non-transitory computer-readable medium storing one or more instructions,

• wherein the one or more instructions, which are executable by one or more processors, control a user equipment (UE) to:
• receive, from a first base station, first downlink control information (DCI), and receive, from a second base station, second DCI;
• and
• receive, from the first base station, first data in a first resource region and a second resource region allocated based on the first DCI, and receive, from the second base station, second data in the first resource region allocated based on the second DCI,
• wherein rate matching of resources related to a Demodulation Reference Signal (DMRS) is configured differently in the first resource region and the second resource region.