Patent ID: 11888664
Assignee: NOKIA SOLUTIONS AND NETWORKS OY
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 8:
9. The apparatus of claim 1, wherein the filtering of the plurality of overlapping processing blocks using the fast convolution processing comprises:
applying at least an orthogonal transform, a transform-plane window function, an inverse transform of the orthogonal transform in this order, wherein the orthogonal transform is one of a fast Fourier transform, a discrete Fourier transform, a Hartley transform and a number theoretic transform; or
applying at least a first time window function, an orthogonal transform, a transform-plane window function, an inverse transform of the orthogonal transform and a second time window function in this order, wherein the orthogonal transform is one of a fast Fourier transform, a discrete Fourier transform, a Hartley transform and a number theoretic transform and the first time window function, the transform-plane window function and the second time window function have been optimized using simultaneous multi-window optimization of the first time window function, the transform-plane window function and the second time window function.