Prioritisation method for users randomly accessing a common communication channel

The invention relates to is used in a communication system for sending and receiving data by the communication device and communication method, providing with multiple access resource random access channels. The communication device (1) comprises: The selector (5), a to for assigning the communication device (1) access probability distribution from the multiple access resource selecting random access resource, wherein access probability distribution definition random access the random access resource probability, at least two access resources in a heterogeneous access probability; A sending (3), and a random access pulse train the access resource of any selection.