Wireless Device Interference Whitening via Reinforcement Learning
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Solution Overview
Problem
Wireless communication devices face challenges in efficiently removing inter-cell interference (ICI) without specific information on adjacent cells, which affects signal quality.
Innovation Solution
The implementation of a wireless communication device that performs an interference whitening operation using reinforcement learning, by obtaining channel state information, selecting appropriate modes, and updating value function expected values based on channel performance information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If interference whitening operation is performed without specific information on adjacent cells, then the device can operate autonomously, but the ability to remove colored interference is limited
Solution Approach 1:
The wireless communication device performs interference whitening operation autonomously using only its own channel state information without requiring specific information from adjacent cells. The device self-determines the optimal interference whitening mode by selecting from multiple predefined modes based on its local channel conditions, enabling independent operation while maintaining effective interference suppression.
2Adaptability or versatility
If multiple interference whitening modes are implemented, then adaptability to different channel conditions is improved, but device complexity increases
Solution Approach 1:
The device dynamically selects from multiple interference whitening modes based on real-time channel state information. The processing circuitry adapts the interference whitening operation by choosing the most appropriate mode (e.g., first interference whitening mode or second interference whitening mode) according to current channel conditions, enabling flexible adaptation without requiring complex real-time computation for mode determination.
Solution Approach 2:
Multiple interference whitening modes are predefined and prepared in advance within the device. The processing circuitry selects from these pre-configured modes based on channel state information, avoiding the need to compute optimal modes in real-time and thus reducing computational complexity while maintaining adaptability.
Data Source
AI summary
An operating method of a wireless communication device performing an interference whitening operation includes 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.