APPARATUS AND METHOD FOR INCREMENTAL REDUNDANCY HYBRID AUTOMATIC REPEAT REQUEST EMPLOYING CONSTELLATION RE-ARRANGEMENT IN A BROADBAND WIRELESS COMMUNICATION SYSTEM

摘要

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an IR-HARQ (Incremental Redundancy Hybrid Automatic Repeat reQuest) scheme using a CoRe (Constellation Re-arrangement) scheme in a broadband wireless communication system, Selecting a CoRe version of a retransmission subpacket if retransmission of the subpacket is required; and modulating all bits of the retransmission subpacket according to a selected CoRe version, By transmitting the CoRe version together with the transmission of the subpacket, the receiving end can demodulate the subpacket to which the CoRe scheme is applied even if the previous subpacket is lost. ; (IR) HARQ (Incremental Redundancy Hybrid Automatic Repeat reQuest), CoRe (Constellation Re-arrangement), a subpacket, an IDentifier, a packet loss,