Method for configuring re-ordering buffers in the High Speed Downlink Packet Access system

PURPOSE: A method for setting re-ordering buffers in an HSDPA(High Speed Downlink Packet Access) system is provided to transmit data more rapidly by preventing data transmission delay time from getting longer unnecessarily, due to the multiplexing of logical channels. CONSTITUTION: The receiving side of a data block sets re-ordering buffers by logical channels(S201), and confirms whether the data block is successfully received from a HARQ(Hybrid Automatic Repeat reQuest) entity(S202). If the data block has been successfully received, the receiving side checks the C/T field contained in a MAC(Medium Access Control)-hs SDU(S203). Using the logical channel information of the C/T field, the receiving side transfers the received data block to a relevant re-ordering buffer, allocated by logical channels(S204). Afterwards, the receiving side confirms whether the connection has been released(S205).