Patent ID: 8626229

Claim:
A power allocation method for a wireless telecommunication system including at least a first couple of terminals consisting of a first transmitting terminal and a first receiving terminal and a second couple of terminals consisting of a second transmitting terminal and a second receiving terminal, a first communication between the first transmitting and the first receiving terminals of the first couple using the same transmission resources as a second communication between the second transmitting and the second receiving terminals of the second couple, so that both communications mutually interfere, wherein the first communication meets a first set flow rate (ρ 1 ) and the second communication meets a second set flow rate (ρ 2 ), wherein a control node performs the following power allocation steps comprising: determining, from an estimation of channel coefficients between the first transmitting and the first receiving terminals, and for a first transmission power range of the first transmitting terminal, and for a second transmission power range of the second transmitting terminal, a partition of an interference diagram of the first and second communications, into different areas, each area corresponding to a different type of processing of the interference; calculating, for each of the first and second communications, respective minimum transmission power curves for performing the interference processing in each said area, in view of the first and second set flow rates; determining, if any, a point of intersection of said minimum transmission power curves relating to the first and second communications; deducing from coordinates of the point of intersection in the interference diagram, first and second transmission power values (P* 1 ,P* 2 ) to be allocated to the first and second transmitting terminals, respectively; transmitting the first and second transmission power values to the first and second transmitting terminals, respectively.