The invention relates to a link adaptation method for a cellular or heterogeneous wireless telecommunications system. The communications of the system are organized in pairs of interfering communications. For a first communication between a first transmitting terminal and a first receiving terminal interfering with a second communication between a second transmitting terminal and a second receiving terminal, the first and/or second link(s) are adapted, at a constant transmission power, by selecting a weak or strong interference regime for the first and/or second link(s), the weak regime corresponding to processing of the interference as thermal noise, the strong regime corresponding to processing in which the interfering communication is decoded in order to be eliminated from the received signal.