Method and apparatus for transmitting uplink data in wireless communication system

A method for receiving uplink (UL) data in a wireless communication system, the method comprising:

• transmitting, to a terminal, configuration information for a grant-free UL transmission, the configuration information including information on a number of repetitive transmissions and period information;
• and
• receiving, from the terminal, an initial transmission of the UL data on a resource,
• wherein the resource for the initial transmission of the UL data is identified based on a value of an RV associated with the resource among resources for repetitive transmissions in a period, the resource for the initial transmission of the UL data being associated with a redundancy version (RV) value 0, and
• wherein the resources for the repetitive transmissions are identified based on the configuration information.

A terminal for transmitting uplink (UL) data in a wireless communication system, the terminal comprising:

• a transceiver;
• and
• a processor configured to:
• receive configuration information for a grant-free UL transmission, the configuration information including information on a number of repetitive transmissions and period information,
• identify resources for repetitive transmissions in a period based on the configuration information,
• identify a resource for an initial transmission of the UL data based on a value of a redundancy version (RV) associated with the resource, wherein the resource for the initial transmission of the UL data is associated with an RV value 0, and
• perform the initial transmission of the UL data on the identified resource.

A base station (BS) for receiving uplink (UL) data in a wireless communication system, the BS comprising:

• a transceiver;
• and
• a processor configured to:
• transmit, to a terminal, configuration information for a grant-free UL transmission, the configuration information including information on a number of repetitive transmissions and period information, and
• receive, from the terminal, an initial transmission of the UL data on a resource,
• wherein the resource for the initial transmission of the UL data is identified based on a value of an RV associated with the resource among resources for repetitive transmissions in a period, the resource for the initial transmission of the UL data being associated with a redundancy version (RV) value 0, and
• wherein the resources for the repetitive transmissions are identified based on the configuration information.