摘要 |
In a mobile communication system, when a receiving condition is deteriorated to the extent that reception does not succeed even by means of combination after retransmission to the maximum number of retransmissions, a transmission rate is restricted by reducing radio frames assignable to new data, and by setting dedicated retransmission frames, to which retransmission data are assignable, over the maximum number of retransmissions for the reduced transmission rate, thereby enabling a greater number of retransmissions than the maximum number of retransmissions without an increase of a buffer size. By this, a combination gain through retransmission is improved and a retransmission failure rate is decreased.
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