Method and apparatus for updating autoencoder for channel state information feedback in wireless communication system

A base station (BS) for updating an autoencoder (AE) for channel state information (CSI) feedback in a wireless communication system, the BS comprising:

• a transceiver;
• and
• at least one processor,
• wherein the at least one processor is configured to:
• transmit, to a user equipment (UE) through the transceiver, a data collect instruction message instructing the UE to collect data before compression corresponding to compressed data,
• receive, from the UE through the transceiver, the data before the compression, and
• update an autoencoder (AE), based on the received data before compression.

A method performed by a user equipment (UE) communicating with a base station (BS) for updating an autoencoder (AE) for channel state information (CSI) feedback in a wireless communication system, the method comprising:

• receiving, from a base station (BS), a data collect instruction message instructing the UE to collect data before compression corresponding to compressed data;
• creating the compressed data;
• transmitting, to the BS, the data before the compression;
• and
• receiving, from the BS, an autoencoder (AE) updated based on the data before compression.