| 摘要 |
<p>Disclosed is the retransmission control method used in a mobile communication system including mobile terminals (MTs), base stations (BSs) and the radio network controller (RNC) which controls the BSs. When an MT detects an error in received data it sends a 1st negative acknowledgement (NACK) to the BS. This first NACK includes a cell ID which indicates the cell(s) from which the data is received. When cell ID in this 1st NACK includes a cell ID of a cell besides the cell which the BS itself manages, the BS sends a 2nd NACK to the RNC. This 2nd NACK includes the cell ID and the data number to specify the data in which the mobile terminal detected the data error. The RNC decides which base stations are to re-transmit the data based on the cell IDs in the 2nd NACK and sends data retransmission requests to the decided base stations.</p> |
