How to broadcast 2D Variable to 4D Variable? (How to convert Linear result back to Conv resutl)

1

I have a Variable x with shape 1x2048x2x2 and another y shape of 1x2048 , and I need to do a torch.cat operation between them. The current solution is

y = y.unsqueeze(-1)
y = y.unsqueeze(-1)
y = y.expand_as(x)

I wonder if there is a more elegant way to solve the problem? Thanks