Methods of transmitting and receiving data in mobile communication system and device supporting the same

Method for transmission or reception service data in wireless access system, the method comprising:

• transmitting, from a terminal to a base station, a Dynamic Service Addition request (DSA-REQ) message in order to negotiate parameters used at scheduling for transmission or reception of the service data with the base station;
• receiving a Dynamic Service Addition response (DSA-RSP) message including a primary interval and a secondary interval for the service data from the base station;
• and
• transmitting or receiving the service data using the primary interval initially,
• wherein interval of the scheduled service data is switched between the primary interval and the secondary interval.

Method for transmission or reception service data in wireless access system, the method comprising:

• receiving, by a base station from a terminal, a Dynamic Service Addition request (DSA-REQ) message in order to negotiate parameters used at scheduling for transmission or reception of the service data with the terminal;
• transmitting a Dynamic Service Addition response (DSA-RSP) message including a primary interval and a secondary interval for the service data to the terminal;
• and
• receiving or transmitting the service data using the primary interval initially,
• wherein interval of the scheduled service data is switched between the primary interval and the secondary interval.

A terminal for transmission or reception service data in wireless access system, the terminal comprising:

• a control module adapted for;
• transmitting, from a terminal to a base station, a Dynamic Service Addition request (DSA-REQ) message in order to negotiate parameters used at scheduling for transmission or reception of the service data with the base station;
• receiving a Dynamic Service Addition response (DSA-RSP) message including a primary interval and a secondary interval for the service data from the base station;
• and
• transmitting or receiving the service data using the primary interval initially,
• wherein interval of the scheduled service data is switched between the primary interval and the secondary interval.