Patent ID: 7558237
Filing Date: 2009-07-07
Classification: H04B,H04L

Abstract:
1. A method of communication in a Multi-Carrier transmission network including plural mobile terminals, the method comprising: dynamically assigning subgroups of spreading sequences of a set of spreading sequences to each of the mobile terminals of the subgroups including different spreading sequences than in other subgroups, and each of the subgroups of spreading sequences comprises a first spreading sequence and at least one other spreading sequence; 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.