Patent ID: 7002930

Claim:
A method of distributing power over a communication channel, the method comprising the steps of: (a) dividing the communication channel into a fixed number of equal bandwidth bins; (b) estimating total channel interference contributed by noise, DSIN-NEXT and DSIN-FEXT and lumping the estimated total channel interference into one power spectral density (PSD); (c) determining a sure-EQPSD signaling region and a sure-FDS signaling region for the communication channel; (d) estimating a true optimal crossover point for switching between EQPSD signaling and FDS signaling; (e) estimating an initial power distribution of power, P E , on one side of the estimated true optimal crossover point (EQPSD region), and P F , on the other side of the estimated true optimal crossover point (FDS region); (f) distributing optimally the power on each side of the estimated true optimal crossover point; (g) determining overall communication channel capacity; (h) re-estimating the initial power distribution of power on each side of the estimated true optimal crossover point; (i) repeating steps (g) and (h) for a desired range of powers to determine a maximum communication channel capacity; (j) re-estimating the true optimal crossover point for switching between EQPSD signaling and FDS signaling; (k) repeating steps (e)–(j) for a desired range of values of the true optimal crossover point; and (l) selecting a highest channel capacity bin as the true optimal crossover point.