Device and method of dynamically assigning subgroups of spreading sequences

摘要

A method of communication in a Multi-Carrier transmission network including plural mobile terminals. The method includes dynamically assigning subgroups of spreading sequences of a set of spreading sequences to each of the mobile terminals. Each of the subgroups includes different spreading sequences than in other subgroups, and each of the subgroups of spreading sequences includes a first spreading sequence and at least one other spreading sequence. The method also includes multiplying, by the mobile terminal to which the first spreading sequence is assigned, each element of the first spreading sequence by pilot symbols to be transmitted to produce multiplied pilot symbols; transmitting the multiplied pilot symbols on a corresponding sub-carrier; multiplying, by the mobile terminal to which the at least one other spreading sequence is assigned, each element of the at least one other spreading sequence by data symbols to be transmitted to produce multiplied data symbols; and transmitting the multiplied data symbols on a corresponding sub-carrier.