A method of optimising exploitation of radio resources utilised during access procedures in cellular communication systems, and corresponding system

In a cellular communication system in which adjacent cells (CA, CB) dynamically contend each other the same radio resources and in which the common control physical channels conveying the bi-directional signalling during the access phases are at least partly located onto dynamically allotted traffic channels, the exploitation of the radio resources utilised during access phases is optimised by reconfiguring the common control physical channels in order to follow fluctuations of radio resources sharing among said adjacent cells. The reconfiguration is carried out by shifting common channels which are located on radio resources exhibiting a high level of interference to radio resources exhibiting a lower level of interference, so as to maximise the number of common channels groups which only comprise channels located on scarcely interfered resources.