How to cover all spectrum in wavelet when it which is behalved? As I know , wavelet decomposition behave with halve.
I mean that a way like this HH HL LH LL.

But I wonder, how to corver the all spectrum when it was halved?
I think if it want to all cover spectrum then it might be needed infinity halve.

How can cover all the spectrum?
It is covered - its just the signal that is the residual part of what you didn't filter yet.