Method for configuring synchronization for mobile relay node in next generation wireless communication system and device for same

A method of transmitting and receiving a signal by a relay node in a wireless communication system, the method comprising:

• during communication based on a first backhaul link synchronization and a first access link synchronization, transmitting change initiation information indicating a change to a second backhaul link synchronization to a user equipment (UE);
• setting frame synchronization with the second backhaul link synchronization from the first backhaul link synchronization;
• transmitting a synchronization signal to the UE to set a second access link synchronization with the UE, wherein the second access link synchronization is determined based on the second backhaul link synchronization;
• and
• after the second access link synchronization is set, transmitting and receiving the signal with the UE according to the second access link synchronization using a parameter corresponding to the first access link synchronization,
• wherein the parameter contains at least one of a TA (Timing Advance) value for access uplink of the UE and a power control factor.