Rlc/mac protocol

The invention claims a are useful in communication system in a frame on the signal channel transmission according to a method and separation, wherein the communication system is the media access control protocol the data transmission layer, the is characterised of; the method comprises the steps: Parts at least two different state is arranged on the signal channels to transmit the frame same base; andAnd at least based on the frame and state, the media access control the assign-in-advance frame.