PACKET TRANSMISSION DEVICE AND PACKET TRANSMISSION METHOD

摘要

There is provided a packet transmission device capable of receiving an MBMS service packet which could not be received for level measurement of a different frequency in a mobile station device, by using the current scheduling information. In this packet transmission device, an empty section search unit (102) searches how much space exists between which services in the multi-cast transmission frame transmitted from the scheduling information to a physical channel. A retransmission packet selection unit (103) extracts a retransmission packet from the packets transmitted at the service immediately before the empty section. A packet transmission unit (104) can perform retransmission for filling the empty section.