The article outlines a framework for WEI-6G AI2 that aims to address the challenges brought by radio channel variations to air interface design. The key components of the framework are:
Environment Sensing Data Acquisition: This module uses multi-modal sensing devices to reconstruct a 3D environment model, providing accurate environment awareness for wireless communication systems.
Environment Data Dimensionality Reduction: This module performs data dimensionality reduction by extracting relevant environment features, semantics, and knowledge from the raw sensing data to support real-time inference of the AI2.
Traditional Channel Training: WEI is used to reduce communication resource overhead by skipping certain channel training processes or reducing the required pilot transmission.
AI for 6G Air Interface: The AI models establish a mapping relationship from WEI and fewer channel estimation results to multiple channel parameters, enabling 6G networks to proactively adapt communication techniques based on the environment.
The article further proposes a 4-step process for obtaining WEI, where the information evolves from raw sensing data (S1) to environment features (S2), environment semantics (S3), and finally environment knowledge (S4). The authors demonstrate that leveraging S4 knowledge can achieve the shortest model inference time with the highest prediction accuracy while deducing pilot overhead, compared to the other WEI representations.
The article also discusses several challenges and future opportunities in the construction and application of WEI, including multi-modal sensing data synchronization, knowledge construction for various parameter prediction tasks, and integration with the existing network architecture.
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by Jianhua Zhan... om arxiv.org 10-01-2024
https://arxiv.org/pdf/2409.19331.pdfDiepere vragen