Wireless communication device for performing interference whitening operation and operating method thereof

An operating method of a wireless communication device performing an interference whitening operation, the operating method comprising:

• obtaining first channel state information of the wireless communication device;
• selecting a selected mode from among a plurality of modes related to the interference whitening operation, the selected mode corresponding to the first channel state information;
• obtaining channel performance information according to the selected mode;
• and
• updating a value function expected value based on the first channel state information, the selected mode, and the channel performance information,
• wherein the operating method further comprises initializing policy information with respect to the value function expected value in response to initializing a communication processor of the wireless communication device.

A wireless communication device comprising:

• processing circuitry configured to,
• obtain first channel state information,
• select a selected mode from among a plurality of modes related to an interference whitening operation, the selected mode corresponding to the first channel state information, and each of the plurality of modes corresponding to a respective value function expected value among a plurality of value function expected values,
• obtain channel performance information corresponding to the selected mode, and
• update a first value function expected value based on the first channel state information, the selected mode, and the channel performance information, the first value function expected value being among the plurality of value function expected values, and the first value function expected value corresponding to the selected mode.