MOBILE COMMUNICATION SYSTEM, RELAY STATION APPARATUS, BASE STATION APPARATUS, RADIO RELAY METHOD, AND COMPUTER READABLE MEDIUM

摘要

In one embodiment, a relay station (11) receives a first radio signal into which transfer information to be transmitted to a mobile station (12) is encoded from a donor base station (10) through a backhaul link. When the transfer information encoded into the first radio signal is unicast information addressed to the mobile station (12), the relay station (11) decodes the unicast information and generates a third radio signal into which the unicast information is re-encoded. Further, the relay station (11) is configured such that when the transfer information encoded into the first radio signal is multicast information, the relay station (11) is able to omit decoding the multicast information. In this way, multicast information that is delayed from the predefined transmission timing is prevented from being transmitted from the relay station (11).