Method and device for transmitting data in wireless communication system

A user equipment (UE) configured to transmit data in a wireless communication system, the UE comprising:

• a radio frequency (RF) unit;
• at least one processor;
• and
• at least one computer memory operably connectable to the at least one processor and storing instructions that, based on being executed by the at least one processor, perform operations comprising:
• transmitting, via the RF unit, a first transmission preamble and a second transmission preamble to estimate an uplink channel;
• receiving, via the RF unit, a common response message to the first and second transmission preambles based on a common temporary identifier being allocated to the first and second transmission preambles, and receiving individual response messages to the respective first and second transmission preambles based on different temporary identifiers being allocated to the respective first and second transmission preambles;
• and
• transmitting, via the RF unit, data through the estimated uplink channel,
• wherein the first transmission preamble is transmitted in a plurality of resource regions, and the second transmission preamble is transmitted in one resource region.

A processing device configured to control a user equipment (UE) to transmit data in a wireless communication system, the processing device comprising:

• at least one processor;
• and
• at least one computer memory operably connectable to the at least one processor and storing instructions that, based on being executed by the at least one processor, perform operations comprising:
• transmitting a first transmission preamble and a second transmission preamble to estimate an uplink channel;
• receiving a common response message to the first and second transmission preambles based on a common temporary identifier being allocated to the first and second transmission preambles, and receiving individual response messages to the respective first and second transmission preambles based on different temporary identifiers being allocated to the respective first and second transmission preambles;
• and
• transmitting data through the estimated uplink channel,
• wherein the first transmission preamble is transmitted in a plurality of resource regions, and the second transmission preamble is transmitted in one resource region.