Patent ID: 6532267
Filing Date: 2003-03-11
Classification: H04L

Abstract:
In a communication system, a method of producing a variable rate precoded signal, said method comprising the steps of:(a) receiving a rate control signal at a variable rate mapper; (b) receiving a data signal at said variable rate mapper; (c) generating a sequence of constellation size representative values in said variable rate mapper based on said rate control signal; (d) generating a sequence of symbols in said variable rate mapper from said data signal wherein each symbol value in said sequence of symbols is bounded by a corresponding value in said sequence of constellation size representative values; (e) transmitting said sequence of constellation size representative values to a precoder; (f) mapping said sequence of symbols to a modulation symbol to produce a modulated sequence of symbols; (g) transmitting said modulated sequence of symbols to said precoder; and (h) preceding said modulated sequence of symbols in said precoder wherein said precoder makes use of said sequence of constellation size representative values to produce a variable rate precoded signal.