HYBRID AUTOMATIC REPEAT REQUEST APPARATUS USING SINGLE PORT MEMORY IN A HIGH DATA-RATE WIRELESS COMMUNICATION SYSTEM AND MEMORY ALLOCATION METHOD THEREOF

摘要

A hybrid automatic repeat request apparatus using a single port memory in a high data-rate wireless communication system and a memory allocation method thereof are provided to improve a data process rate by reducing process speed lowering caused by a memory clear time. A hybrid automatic repeat request apparatus using a single port memory in a high data-rate wireless communication system includes a plurality of memory banks(310-340), an H-ARQ controller(350), a plurality of registers(301-303), a demultiplexer(360), and a multiplexer(370). The plurality of memory banks(310-340) operates as a buffer for storing H-ARQ bursts which consist of information data(Systematic A,B) and a parity data(Parity Y,W). The H-ARQ controller(350) generally controls the apparatus according to dynamic memory allocation algorithm. The plurality of registers(301-303) stores information for a dynamic memory allocation. The demultiplexer(360) demultiplexes the H-ARG burst inputted for each ACQ channel. The multiplexer(370) multiplexes H-ARQ processed data and outputs the H-ARQ processed data to a decoder.