A method for a channel of a Code Division Multiple Access telecommunication system, the Code Division Multiple Access telecommunication system implementing a phase of communicating data conveyed by a plurality of transport channels, the Code Division Multiple Access telecommunication system comprising at least one sending entity and at least one receiving entity for communicating the data, the phase of communicating data comprising a plurality of rate matching steps, each of the plurality of rate matching steps executing a transformation of an input block of an initial size into an output block of a final size by puncturing or repeating at least one bit of the input block.