| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve reception quality of MBMS data of UE, without wasting radio resources, even when an error occurs in the MBMS data transmitted from eNB in distributing MBMS via a radio access network constituted of eNB and RS. <P>SOLUTION: A radio quality determination unit 162 outputs, to a retransmission determination unit 164, reception quality determination information, indicative of reception quality between UE and a present device, determined based on CQI included in a NACK signal received from the UE. On the basis of the reception quality determination information input from the radio quality determination unit 162, a retransmission data determination section 171 of the retransmission determination unit 164 determines MBMS data to be retransmitted from the present device and retransmission data (FEC encoding rate of MBMS data) to be retransmitted from the RS. The retransmission data determination section 171 then notifies the RS about a data relay request including the FEC encoding rate of retransmission data to be retransmitted from the RS. <P>COPYRIGHT: (C)2009,JPO&INPIT |
