A method of power allocation in a wireless telecommunication system including at least a first couple of terminals, including a first transmitting terminal and of a first receiving terminal, and of a second couple of terminals, including a second transmitting terminal and a second receiving terminal. After a phase of initialization of the allocated powers, a plurality of iterations are carried out, each iteration including a first half-iteration, which is the task of the first couple of terminals, and a second half-iteration which is the task of the second couple of terminals. Each half-iteration includes a step of estimating the signal-to-noise and interference-to-noise ratios by the receiving terminal, and a step of calculating the minimum output power compatible with the treatment of the interference, for the prescribed throughput of the call in question.