Method of supporting data retransmission in a mobile communication system
A method of supporting data retransmission in a mobile communication system is disclosed according to the present invention. A method of supporting a hybrid automatic repeat and request (HARQ) at a user equipment in a mobile communication system comprises transmitting a first packet to a network, receiving a reception status signal for the first packet from the network, obtaining a negative acknowledgement signal (NACK) by decoding the reception status signal, and receiving supplemental control information indicating that the reception status signal is a positive acknowledgement signal (ACK).
1. A method of supporting hybrid automatic repeat and request (HARQ) at a user equipment in a mobile communication system, comprising:
transmitting a first packet to a network;
receiving an uplink scheduling grant message allocating uplink resources for transmitting a second packet from the network; and
performing a next procedure on an assumption that the first packet is successfully received by the network regardless of a reception status signal for the first packet.
2. The method of claim 1 , further comprising:
receiving a reception status signal for the first packet from the network; and
obtaining a negative acknowledgement signal (NACK) by decoding the reception status signal.
3. The method of claim 1 , wherein the next procedure is to transmit the second packet to the network, the second packet not being a retransmission packet.
4. The method of claim 1 , wherein the mobile communication system is based on an orthogonal frequency division multiplexing (OFDM) scheme or an orthogonal frequency division multiple access (OFDMA) scheme.
5. A user equipment for supporting hybrid automatic repeat and request (HARQ) in a mobile communication system, the user equipment comprising:
transmitting a first packet to a network;
receiving an uplink scheduling grant message allocating uplink resources for transmitting a second packet from the network; and
performing a next procedure on an assumption that the first packet is successfully received by the network regardless of a reception status signal for the first packet.