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

摘要

According to an embodiment, a relay station (11) receives, from a donor base station (10) via a backhaul link, a first radio signal in which transfer information addressed to a mobile station (12) has been encoded. If the transfer information encoded in the first radio signal is unicast information addressed to the mobile station (12), then the relay station (11) decodes the unicast information and generates a third radio signal in which the unicast information has been re-encoded. If the transfer information encoded in the first radio signal is multicast information, then the relay station (11) can avoid decoding the multicast information. In this way, it can be suppressed for multicast information, which is late for a predetermined transmission timing, to be sent out from the relay station (11).