The invention relates to the technical field of 5G
communication channel estimation, and discloses a 5GMIMO channel
estimation optimization method based on
deep learning. According to the method, a
deep learning model architecture is constructed, and
model parameters are dynamically initialized according to channel
coherence time so as to adapt to 5GMIMO channel
multipath propagation characteristics. Received
signal streams from a plurality of antenna elements containing different
orthogonal frequency division multiplexing sub-carrier frequency sequences are processed,
channel impulse response estimates are generated based on
frequency domain correlation and input into a model for
nonlinear transformation. And performing
model parameter collaborative optimization, updating the network weight by calculating the gradient variation, constructing a target function according to channel
delay extension and model depth association, and adjusting the
estimation output towards the direction of minimizing the
mean square error. And triggering model structure
adaptation based on a norm of gradient variation, acquiring model copy parameters matched with the
current channel state from an adjacent
cell base station, normalizing the model copy parameters, and adjusting the number of attention heads or the number of
residual blocks.