Method and apparatus for derate matching in high speed downlink packet access

The present invention for a method and apparatus for receiving the base station, the rate matching a forward packet data transmission is (rate matching) in the high-speed packet transmission system (HSDPA) in the mobile unit-matching de-rate, and the technical configuration of high-speed packet transmission in receiving a rate matching the packets in a given transmitter of the system to a device for matching de-rate, stored in accordance with the acquisition buffer, and a predetermined memory address information of the received packet output from the acquisition buffer predetermined for temporarily storing the received packet binding buffer, and decoding the high-speed shared channel information contained in the predetermined HARQ parameters to be sent out from the transmitter, and a controller for overall control of the de-rate matching operation between the binding buffer and the acquisition buffer, the decoded HARQ parameters based on a position information of the punctured bits when the rate matching The coupling to a memory address of the puncturing bits before performing the de-rate matcher under control of the memory address, the address generating information generation unit, and a address buffer, the controller to store the memory address information including the It characterized by configured by comprising a zero insertion at least in initializing one of the data stored in the memory address of the buffer. Therefore, in accordance with the present invention, it is possible to provide a high-speed packet transmission in a system using additional buffer, or how transmission matching without increasing the clock that can significantly reduce the de-rate matching the time of the received packet at the receiver de-rate and apparatus . HARQ, HSDPA, rate matching, derate matching, buffers, memory, address, hours