Method to generate pseudo-random sequence of multi-carrier data symbols, and related transmitter and receiver

1. A method to generate a pseudo-random sequence of multi-carrier data symbols, said method comprising:

producing a pseudo-random bit sequence by repetitively generating a pseudo-random sequence of L bits, L being a first integer value;

packetizing into multi-carrier data symbols thereby using N bits of said pseudo-random bit sequence per multi-carrier data symbol, N being a second integer number, to thereby generate said pseudo-random sequence of multi-carrier data symbols,

wherein said packetizing comprises:

dividing said pseudo-random bit sequence into strings of N′ bits, N′ being a third integer value larger than N, wherein N is greater than or equal to two, N′ differs from L−1 and from L+1, and N′ is not fractionally related to L; and

using N bits out of each string of N′ bits to generate a multi-carrier data symbol out of said pseudo-random sequence of multi-carrier data symbols, and leaving N′-N bits out of each string of N′ bits unused.

2. A generator of a pseudo-random sequence of multi-carrier data symbols, said generator comprising:

scrambling means, adapted to repetitively generate a pseudo-random sequence of L bits, L being a first integer value, to thereby produce a pseudo-random bit sequence;

packetizing means, adapted to packetize into multi-carrier data symbols using N bits of said pseudo-random bit sequence per multi-carrier data symbol, N being a second integer number, to thereby generate said pseudo-random sequence of multi-carrier data symbols,

wherein said packetizing means comprises:

dividing means, adapted to divide said pseudo-random bit sequence into strings of N′ bits, N′ being a third integer value larger than N, wherein N is greater than or equal to two;

multi-carrier data symbol generating means, adapted to use N bits out of each string of N′ bits to generate a multi-carrier data symbol out of said pseudo-random sequence of multi-carrier data symbols and to leave N′-N bits out of each string of N′ bits unused; and

selection means, adapted to select said third integer value N′, wherein N′ differs from L−1 and from L+1, and N′ is not fractionally related to L.

3. The pseudo-random sequence generator according to claim 2 , further comprising transmitting means, coupled to said pseudo-random sequence generator, and adapted to transmit a pseudo-random sequence of multi-carrier symbols generated by said pseudo-random sequence generator over a communication channel.

4. The pseudo-random sequence generator according to claim 3 , further comprising communication means coupled to said selection means, and adapted to communicate said third integer value N′ to a multi-carrier receiver.

5. The pseudo-random sequence generator according to claim 2 , further comprising:

receiving means adapted to receive a first pseudo-random sequence of multi-carrier symbols transmitted over a communication channel, and

decoding means, coupled to said receiving means and to said pseudo-random sequence generator, and adapted to decode said first pseudo-random sequence of multi-carrier symbols and a second pseudo-random sequence of multi-carrier symbols generated by said pseudo-random sequence generator.

6. A generator of a pseudo-random sequence of multi-carrier data symbols, said generator, comprising:

a scrambler that repetitively generates a pseudo-random sequence of L bits, L being a first integer value, to thereby produce a pseudo-random bit sequence;

a packet generator that packetizes multi-carrier data symbols using N bits of said pseudo-random bit sequence per multi-carrier data symbol, N being a second integer number, to thereby generate said pseudo-random sequence of multi-carrier data symbols,

wherein said packet generator comprises:

a divider that divides said pseudo-random bit sequence into strings of N′ bits, N′ being a third integer value larger than N, and wherein, wherein N is greater than or equal to two; and

a multi-carrier data symbol generator that uses N bits out of each string of N′ bits to generate a multi-carrier data symbol out of said pseudo-random sequence of multi-carrier data symbols and to leave N′-N bits out of each string of N′ bits unused; and

a switch that selects said third integer value N′, wherein N′ differs from L−1 and differs from L+1, and N′ is not fractionally related to L.

7. The pseudo-random sequence generator according to claim 6 , further comprising a transmitter, coupled to said pseudo-random sequence generator, and adapted to transmit a pseudo-random sequence of multi-carrier symbols generated by said pseudo-random sequence generator over a communication channel.

8. The pseudo-random sequence generator according to claim 7 , further comprising a communication device coupled to said switch, and adapted to communicate said third integer value N′ to a multi-carrier receiver.

9. The pseudo-random sequence generator according to claim 6 , further comprising:

a receiver that receives a first pseudo-random sequence of multi-carrier symbols transmitted over a communication channel, and

a decoder coupled to said receiving means and to said pseudo-random sequence generator, and decoding said first pseudo-random sequence of multi-carrier symbols and a second pseudo-random sequence of multi-carrier symbols generated by said pseudo-random sequence generator.