Patent ID: 7502469
Filing Date: 2009-03-10
Classification: H04L

Abstract:
1. A method for generating a pseudo-random sequence of multi-carrier data symbols, said method comprising: producing a pseudo-random bit sequence; and generating a pseudo-random sequence of multi-carrier data symbols using N bits of said pseudo-random bit sequence per multi-carrier data symbol, N being a first integer number, wherein the generating further comprises: dividing said pseudo-random bit sequence into strings of N′ bits, N′ being a second integer number larger than N; applying rotations to carriers of multi-carrier data symbols using N bits out of each string of N′ bits per multi-carrier data symbol; and leaving N′-N bits out of each string of N′ bits unused per multi-carrier data symbol, the amount of rotation to a nth carrier being specified by a nth set of bits in said used N bits, thereby generating said pseudo-random sequence of multi-carrier data symbols.