Patent ID: 8839064

Claim:
A method for at least one of transmitting and receiving a packet in a communication system comprising a transmitting node and a receiving node, in which the transmitting node comprises a transmitting Radio Link Control (RLC) entity for performing an Automatic Repeat reQuest (ARQ) operation and a transmitting Medium Access Control (MAC) entity for performing a Hybrid Automatic ReQuest (HARQ) operation, the method comprising: transmitting the packet from the transmitting RLC entity to the receiving node via the transmitting MAC entity; transmitting a HARQ failure signal from the transmitting MAC entity to the transmitting RLC entity, if the transmitting MAC entity receives a HARQ Negative ACKnowledgment (NACK) signal from the receiving node; and re-transmitting the packet from the transmitting RLC entity to the receiving node via the transmitting MAC entity, if the transmitting RLC entity receives the HARQ failure signal, wherein the HARQ failure signal transmitted from the transmitting MAC entity to the transmitting RLC entity is a signal for re-transmitting the packet from the transmitting RLC entity of the receiving node, and wherein the transmitting of the packet and the re-transmitting of the packet from the transmitting RLC entity to the receiving node via the transmitting MAC entity are performed within a preset packet transmission time.