HYBRID ARQ METHOD AND APPARATUS IN A RELAY WIRELESS COMMUNICATION SYSTEM USING COMPRESS AND FORWARD SCHEME

摘要

The present invention relates to a complex automatic retransmission method and apparatus in a relay wireless communication system, and in particular, a complex automatic retransmission method in a relay wireless communication system using a compression-and-forward (hereinafter referred to as "CF") technique, and It relates to the device. The method in a relay node according to an embodiment of the present invention is a hybrid automatic retransmission method in the relay node of a relay wireless communication system using a compression and transfer (CF) technique, and when data is received from a previous node, the previous node Performing quantization in a mesh form to have redundant information during quantization for transmitting the data received from the data to the next node; Channel-encoding only an amount that can be transmitted through a channel set for transmission to the next node from higher information among the quantized information, and transmitting it to the next node; And when receiving a negative response (NACK) from the next node, performing channel encoding as much as an amount capable of being transmitted through the set channel among remaining information that is not transmitted among the quantized information and retransmitting it to the next node. have.