Patent ID: 8867659

Claim:
A communications device comprising: a transmitter; a transmission processing device that generates signal-space points to be transmitted to the transmitter; a receiver; and a reception processing device, wherein the transmission processing device assigns the signal-space points within an I/Q signal space having an origin to digital signals, which comprise data values, wherein the reception processing device assigns data values to the signal-space points, the transmitter generates a transmission signal from the signal-space points, wherein the receiver determines received signal-space points from a reception signal, the transmission processing device adjusts the ratio of the spacing distance of signal-space points to be transmitted from the origin of the signal space and of the spacing distance of the signal-space points from immediately adjacent signal-space points dependent upon the distribution of noise power, wherein individual transmitted and received signal-space points provide a smaller spacing distance from adjacent signal-space points than from the origin of the original signal space, when a focus of noise-power density is at low amplitudes, and the transmitted and received signal-space points are arranged on an inner circle, a middle circle, and an outer circle about the origin of the signal-space providing an approximately equal spacing distance from immediately adjacent signal-space points.