HARQ reordering method for WCDMA enhanced uplink dedicated channel

A method for a hybrid automatic repeat request (HARQ) reordering in Uplink Channel of a mobile communication system including at least one of Node B having soft combine buffers and a serving radio network controller (SRNC) having a reordering buffer, comprising the following steps:

• receiving, at the Node Bs, packet data from a mobile terminal;
• generating, at a hybrid automatic retransmission repeat request entity located in the Node B, an Acknowledge or Non-acknowledge information corresponding to each of the received packet data, and transmitting the generated Acknowledge or Non-acknowledge information to the mobile terminal;
• sending, at a hybrid automatic retransmission repeat request entity, a correctly received packet data to a serving radio network controller that are packet data transmitted with the Acknowledge information;
• routing, at a reordering queue distribution entity located in the serving radio network controller, the correctly received packet data to a correct reordering buffer;
• reordering, at a reordering entity located in the serving radio network controller, the routed packet data according to a sequence number (TSN) of the routed packet data, and outputting the reordered packet data;
• and
• extracting, at a disassembly entity located in the serving radio network controller, the MAC-d packet data in the outputted packet data from the reordering entity, which is packet data removed from a header of the outputted packet data.

A mobile communication system supporting a hybrid automatic repeat request (HARQ) function, the system comprising;

• after correctly receiving a packet data transmitted from a mobile terminal, a hybrid automatic retransmission repeat request entity located in a Node B configured for sending the correctly received packet data to a serving radio network controller;
• and
• the serving radio network controller configured for generating MAC-d packet data based on the correctly received packet data;
• wherein the serving radio network controller comprises, a reordering queue distribution entity configured for routing the correctly received packet data to a correct reordering buffer;
• a reordering entity configured for reordering the routed packet data according to a sequence number (TSN) of the routed packet data, and outputting the reordered packet data;
• and
• a disassembly entity configured for extracting the MAC-d packet data in the outputted packet data from the reordering entity, which is packet data removed from a header of the outputted packet data.