The present invention relates to a distributed method of power allocation in a wireless telecommunication system comprising at least a first couple of terminals, consisting of a first transmitting terminal and of a first receiving terminal, and of a second couple of terminals, consisting of a second transmitting terminal and a second receiving terminal. After a phase of initialization of the allocated powers (615), a plurality of iterations is carried out, each iteration comprising a first half-iteration (620, 630, 640), which is the task of the first couple, and a second half-iteration (650, 660, 670) which is the task of the second couple of terminals. Each half-iteration comprises a step (620) of estimation of the signal-to-noise and interference-to-noise ratios by the receiving terminal, a step (630, 640) of calculating the minimum output power compatible with the treatment of the interference, for the prescribed throughput of the call in question.