Physical Resource Configuration for Full-Duplex Interference Cancellation
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Solution Overview
Problem
Existing communication systems struggle to provide opportunities for unidirectional transmission signals and iterative convergence for full-duplex operations, particularly in 5G and IoT networks, due to challenges in configuring physical resources for analog cancellation circuits.
Innovation Solution
A method for resource configuration that allocates physical resources with specific parameters for reference signals, allowing terminals to perform either uplink or downlink transmissions, or both, while enabling iterative convergence of analog cancellation circuits through dedicated resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If physical resources are allocated for full-duplex operations, then interference cancellation capability is improved, but resource configuration complexity increases
Solution Approach 1:
The patent segments physical resources into specific types (uplink reference signals, downlink reference signals, and unidirectional transmission signals) with dedicated configurations. Each resource type has separate parameter settings including time domain parameters (starting symbol, length), frequency domain parameters (resource block allocation), and power parameters. This segmentation allows the system to manage interference cancellation resources independently without overwhelming configuration complexity.
Solution Approach 2:
The patent performs preliminary configuration of physical resources for interference cancellation before actual full-duplex operations begin. The base station pre-allocates specific time-frequency resources, sets reference signal parameters, and configures unidirectional transmission opportunities in advance. This preliminary action ensures that when full-duplex operations start, the interference cancellation infrastructure is already in place and operational.
2Reliability
If unidirectional transmission opportunities are provided for analog cancellation circuits, then full-duplex operation reliability is improved, but system resource utilization efficiency decreases
Solution Approach 1:
The patent implements periodic unidirectional transmission opportunities within the full-duplex resource allocation framework. The base station configures periodic uplink reference signals and downlink reference signals with specific periods and time-domain patterns. These periodic unidirectional transmissions provide regular analog cancellation opportunities while maintaining overall full-duplex operation, balancing reliability requirements with resource utilization efficiency.
Data Source
AI summary
For supporting higher data rates, resource configuration includes: acquiring, by a terminal, a configuration of physical resources; and performing, by the terminal, transmission according to the configured physical resources, wherein performing, by the terminal, transmission according to the configured physical resources comprises one of: neither performing, by the terminal, uplink transmission nor performing downlink reception on the configured physical resources; performing, by the terminal, only downlink reception on the configured physical resources; and performing, by the terminal, only uplink transmission on the configured physical resources.