Patent ID: 8504010

Claim:
A power allocation method for a wireless telecommunication system including a first communication system that includes a first transmitting terminal and a first receiving terminal, and a second communication system that includes a second transmitting terminal and a second receiving terminal, a first call between the first communication system and the second communication system uses same transmission resources as a second call between the the first communication system and the second communication system, such that the first call and the second call interfere with one another, the first call being required to satisfy a first prescribed throughput and the second call being required to satisfy a second prescribed throughput, wherein the method comprises: initializing output powers of the first and second transmitting terminals are to predetermined values; executing a plurality of iterations until a stop criterion is satisfied, each iteration comprising a first plurality of steps executed by the first communication system, followed by a second plurality of steps carried out by the second communication system, the first plurality of steps including, (a1) estimating, by the first receiving terminal, a signal-to-noise ratio and an interference-to-noise ratio, the signal being that of the first call and the interference being induced by the second call, (b1) calculating a minimum output power of the first transmitting terminal allowing the first prescribed throughput, based on the signal-to-noise ratio and the interference-to-noise ratio estimated by the estimating executed by the first receiving terminal, and (c1) updating an output power of the first transmitting terminal to the minimum output power of the first transmitting terminal; the second plurality of steps including, (a2) estimating, by the second receiving terminal, a signal-to-noise ratio and an interference-to-noise ratio, the signal being that of the second call and the interference being induced by the first call, (b2) calculating a minimum output power of the second transmitting terminal allowing the second prescribed throughput, based on the signal-to-noise ratio and the interference-to-noise ratio estimated by the estimating executed by the second receiving terminals, and (c2) updating an output power of the second transmitting terminal to the minimum output power of the second transmitting terminal.