Self-Interference Cancellation Slot Segmentation for Full-Duplex UE
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Solution Overview
Problem
Existing wireless communication systems face challenges in effectively managing self-interference in full-duplex operations, particularly in high-frequency bands like those used in 5G and 6G, which hinder efficient resource allocation and data transmission.
Innovation Solution
A method and device for self-interference cancellation in wireless communication systems, involving signal transmission schemes tailored for specific sections of a slot, enabling effective decoding of data using different transmission schemes based on the content of the signal, and employing a transceiver with a processor for managing self-interference channel estimation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If full-duplex operation is implemented in wireless communication systems, then frequency efficiency is improved, but self-interference management becomes more difficult
Solution Approach 1:
The transmission slot is divided into a first section for self-interference channel estimation and a second section for data transmission. This segmentation allows the system to separately handle channel estimation and data transmission, enabling effective self-interference cancellation while maintaining full-duplex operation and frequency efficiency.
2Reliability
If self-interference channel estimation is performed, then full-duplex operation becomes possible, but system complexity increases
Solution Approach 1:
The self-interference channel estimation is performed in advance during the first section of the slot before data transmission begins. By completing the channel estimation beforehand, the system enables full-duplex operation while managing complexity through proactive preparation rather than real-time processing.
Solution Approach 2:
The patent performs channel estimation for the self-interference channel specifically in the first section, which is a partial action focused on the critical estimation task. This approach provides sufficient information for full-duplex operation without requiring continuous or excessive estimation across the entire slot, thus balancing reliability and complexity.
3Measurement precision
If different transmission schemes are used for different sections, then data decoding accuracy is improved, but processing complexity increases
Solution Approach 1:
Different transmission schemes are applied to different sections of the slot: the first section uses a scheme optimized for channel estimation, while the second section uses a scheme optimized for data transmission. This local quality approach improves decoding accuracy for each specific task while keeping the overall system manageable through clear section-based differentiation.
Data Source
AI summary
The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. The disclosure provides a method performed by a user equipment (UE), the method comprises receiving, from a base station, data in a slot including a first signal transmission section and a second signal transmission section, identifying whether the received data includes a first data in the first signal transmission section for self-interference channel estimation of the base station, in case that the received data includes a first data in the first signal transmission section, decoding the first data using a first transmission scheme for the first signal transmission section, and in case that the data includes a second data in the second signal transmission section, decoding the second data using a second transmission scheme for the second signal transmission section.