Patent ID: 7768978

Claim:
A packet transmission method for a wireless telecommunication system including a base station and mobile stations, comprising: a first allocation step of allocating to RTP (real-time transport protocol) data packets generated from data to be transmitted, a first logical channel out of a plurality of logical channels provided between a MAC (medium access control) layer and an RLC (radio link control) layer as an upper layer thereof, and a first transport channel out of a plurality of transport channels provided between a physical layer and the MAC layer as an upper layer thereof; a second allocation step of allocating to RTCP (real-time transport control protocol) data packets generated from data to be transmitted, a second logical channel different from the first logical channel, out of the plurality of logical channels, and a second transport channel having a bit error rate differing from that of the first transport channel, out of the plurality of transport channels; and a transmission step of transmitting, the RTP data to which the first logical channel and the first transport channel are allocated through the first allocation step, and the RTCP data to which the second logical channel and the second transport channel are allocated through the second allocation step.