Patent ID: 8249043

Claim:
A method of data transmission in a multi-carrier based transmission system, the transmission being made over a channel shared among a number of data streams according to a frequency division multiple access scheme, data from different sources or to different destinations being sent by streams of symbols, a plurality of physical resource blocks being defined as blocks constituted by a given number of consecutive sub-carriers and a transmission time of a given number of symbol durations, some of these streams being transmitted in a distributed mode, comprising: distributing some of the distributed streams onto at least one distributed physical resource block in a second distributed mode, the distributing including: spreading symbols of the distributed streams onto and within the distributed physical resource blocks in a way where each sub-carrier and each symbol time of the distributed physical resource blocks will be allocated with symbols from at least two different streams, and multiplexing symbols from a first plurality of L data blocks, fed with symbols from the distributed streams, to a second plurality of L data blocks to be allocated to distributed physical resource blocks using a modulo operation, wherein each data block of the first and second plurality of data blocks is of size S with symbols thereof indexed from 0 to S−1, each data block of the first and second plurality of data blocks is indexed from 0 to L−1, each symbol of index i of a data block of index j of the first plurality of data blocks is multiplexed to a symbol of index k of a data block of index l of the second plurality of data blocks, at least one of k and l is determined based on a modulo operation including i or j as a parameter, and S, L, i, j, k, and l are non-negative integers.