Operation method of communication node for uplink transmission in communication network

An operation method of a base station for uplink transmission in a communication network based on Internet of things (IoT), the operation method comprising:

• generating a resource pool for uplink transmission of a terminal included in the communication network and a transmission indicator pool corresponding to the resource pool;
• transmitting a message including information on the resource pool and information on the transmission indicator pool to the terminal;
• receiving a message including a transmission indicator indicating the uplink transmission from the terminal;
• and
• supporting the uplink transmission of the terminal based on an uplink resource included in the resource pool and a plurality of parameters preconfigured for the uplink transmission.

An operation method of a terminal for uplink transmission in a communication network based on Internet of things (IoT), the operation method comprising:

• receiving a downlink control information (DCI) transmitted from a base station included in the communication network;
• identifying a terminal group indicated by the DCI based on scrambling of the DCI;
• and
• performing uplink transmission of the terminal when the identified terminal group is a terminal group to which the terminal belongs.