Patent ID: 7319713

Claim:
A method of limiting a combined signal, the method comprising: multiplying an information signal intended for each subscriber terminal by a spreading code and a weighting coefficient, which is proportional to the power of the transmission directed to the subscriber terminal; combining transmissions intended for various subscriber terminals into a combined signal; setting a threshold value for power or amplitude values of the combined signal; dividing a chip sequence of the combined signal into blocks; comparing the power or amplitude values of each block with the set threshold value to find out whether the combined signal needs to be limited; and when the threshold value is exceeded, decorrelating the block where the threshold value was exceeded and a pre-determined number of channelization codes, which have a pre-determined spreading factor, and performing normalization to determine first weighting coefficients for the channelization codes or channelization code groups, the first weighting coefficients being proportional to the power of transmissions directed to pre-determined subscriber terminals; comparing each combination of the first weighting coefficient and the related channelization code with set objectives and determining second weighting coefficients for downlink transmissions selected as a result of the comparison, the second weighing coefficients being proportional to the power of transmissions directed to pre-determined subscriber terminals; and re-forming the block using combinations of the channelization codes and the weighting coefficients that were determined, the weighting coefficients being second weighting coefficients provided that they have been determined, or otherwise first weighting coefficients, and thus the examined block of the combined signal becomes limited in respect of the power or amplitude.