Patent ID: 7864883

Claim:
A modulation method that transmits n bits per modulation symbol, comprising the steps of: (a) generating a constellation of which 2 n constellation points are arranged to be angular point of equilateral triangle; (b) generating a modulation symbol by mapping the constellation point with n bit digital signal, wherein the constellation points have a lattice structure on an I/Q plot signal space figure, in which 2 n/2 constellation points are arranged on each of 2 n/2 rows parallel to an I-axis and 2 (n/2âˆ’1) constellation points are arranged on each of 2 (n/2+1) columns parallel to a Q-axis, n being an even value greater than two, and wherein, when the number of the constellation points is 16 and the distance between the constellation points is 2d, average consumption power of each constellation point is 9d 2 .