Neural Network Feedback Encoding for Wireless Nodes
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Solution Overview
Problem
Current wireless communication systems face challenges in enhancing the performance of artificial neural network-based feedback transmission and reception operations, particularly in scenarios where accurate information about the neural network structures is not shared between communication nodes, hindering the effectiveness of AI/ML techniques for channel state information feedback.
Innovation Solution
The proposed method involves using artificial neural networks for encoding and decoding feedback information, where communication nodes pre-train their networks based on shared common latent data sets to ensure compatibility and accuracy in feedback transmission, and includes a fallback mode for handling deactivation or configuration changes, ensuring continuous operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If artificial neural network structures are used for feedback transmission, then feedback performance is improved, but compatibility between communication nodes deteriorates when neural network information is not shared
Solution Approach 1:
The patent applies preliminary action by performing pre-training of neural network encoders and decoders using shared common latent data sets before actual feedback transmission. This pre-training establishes compatibility between communication nodes in advance, allowing them to work together effectively even though their neural network structures are not identical. The common latent data set serves as a preliminary training resource that aligns the neural networks of different nodes before they engage in actual feedback operations.
2Measurement precision
If neural network encoders and decoders are used for feedback operations, then information transmission accuracy is improved, but system complexity increases
Solution Approach 1:
The patent applies copying by using common latent data sets that are shared between communication nodes. Instead of requiring each node to develop and maintain completely independent neural network models, the system creates copies of the training data (common latent data sets) that can be used by multiple nodes. This reduces system complexity while maintaining transmission accuracy, as nodes can leverage the same training resources rather than requiring unique complex models for each node.
3Productivity
If artificial neural networks are deployed for feedback processing, then feedback efficiency is improved, but adaptability to node updates and handovers deteriorates
Solution Approach 1:
The patent applies universality by designing a system where common latent data sets serve multiple functions: they are used for pre-training neural networks, for maintaining compatibility during operations, and for enabling smooth transitions during node updates and handovers. The same common latent data set infrastructure supports both efficient feedback processing and adaptability to changes, making the system multi-functional without requiring separate mechanisms for each purpose.
Data Source
AI summary
An operation method of a first communication node may include: inputting first input data including first feedback information to a first encoder of a first artificial neural network corresponding to the first communication node; generating first latent data based on an encoding operation in the first encoder; generating a first feedback signal including the first latent data; and transmitting the first feedback signal to a second communication node, wherein the first latent data included in the first feedback signal is decoded into first restored data corresponding to the first input data in a second decoder of a second artificial neural network corresponding to the second communication node, and the first input data includes first common input data included in a common input data set previously shared between the first communication node and the second communication node.


