CLI Measurement Using Activated TCI State Quantity
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Solution Overview
Problem
Current wireless communication systems face challenges in accurately measuring and managing cross-link interference (CLI) between base stations and user equipment (UE), which affects the quality of service and resource allocation in wireless networks.
Innovation Solution
A technique is described where a UE determines whether to perform a CLI measurement based on the quantity of activated transmission configuration indicator (TCI) states, measures the CLI signal using appropriate receive beams and timing information, and reports the results, allowing for precise CLI reporting and management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a UE performs CLI measurement using multiple activated TCI states, then the measurement precision is improved, but the device complexity increases
Solution Approach 1:
The patent changes the parameter of TCI state quantity from multiple to one, simplifying the measurement process. The UE determines the quantity of activated TCI states and performs CLI measurement based on this quantity, using a single TCI state when possible to reduce complexity while maintaining measurement capability
Solution Approach 2:
The patent segments the CLI measurement process into different paths based on the quantity of activated TCI states. When one TCI state is activated, a simplified measurement path is used; when multiple TCI states are activated, an extended measurement path is used, allowing the system to adapt complexity to actual needs
2Reliability
If a UE performs CLI measurement with multiple TCI states, then the reliability of interference assessment is improved, but the loss of time increases
Solution Approach 1:
The patent makes the TCI state selection dynamic based on the quantity of activated TCI states. The UE adaptively selects which TCI state to use for CLI measurement according to the current activation status, optimizing the balance between measurement reliability and time consumption in different scenarios
Solution Approach 2:
The patent performs preliminary determination of the quantity of activated TCI states before performing the actual CLI measurement. This preliminary action allows the UE to prepare the appropriate measurement configuration in advance, reducing the time required during the actual measurement process
Data Source
AI summary
Systems, devices, and techniques for measuring and reporting cross-link interference (CLI) are described. A described technique includes determining, by a first wireless device, whether to perform a CLI measurement; determining a quantity of activated transmission configuration indicator (TCI) states associated with a second wireless device; performing the CLI measurement based on the quantity of activated TCI states; and transmitting a CLI report in response to the CLI measurement.