| 摘要 |
A method of operating a packet data multicast communication system which comprises a network or NodeB (BS) and a plurality of mobile stations (MS 1 , MS 2 , MS 3 ). The network and the mobile stations have transceiving equipment ( 14, 34 ) for the transmission of data packets on a downlink between the network and mobile stations, and feedback signalling (ACK/NACK) on an uplink. The mobile stations have means for receiving a data packet transmitted by the first station, means ( 46 ) for measuring the quality of reception, means ( 30, 48 ) for determining into which one of at least three predetermined quality ranges the measured quality falls. Each of the at least three predetermined quality ranges represents a respective transmitter behaviour of the first station and the transmitter behaviour corresponding to at least two non-contiguous ones of the quality ranges is identical.
|
