UE CLI Resource Capability for Flexible Interference Measurement
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Solution Overview
Problem
Wireless communications systems face challenges with cross-link interference (CLI) that occur when transmission signals from one user equipment (UE) interfere with the reception signals of another neighboring UE, particularly in cellular networks, leading to reduced throughput and reliability.
Innovation Solution
Techniques for indicating the CLI resource capability of a UE, allowing for flexible CLI resource configuration and reporting based on UE capability, which includes per-slot and per-component carrier measurements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the UE measures CLI on all configured resources, then the measurement precision and reliability improve, but the processing complexity and power consumption increase
Solution Approach 1:
The UE performs CLI measurement on only a subset of configured resources rather than all resources. The network configures multiple CLI measurement resources, but the UE selectively measures only certain ones based on its capability indication, achieving adequate measurement precision while reducing processing complexity and power consumption.
2Reliability
If the network configures more CLI measurement resources, then the measurement reliability improves, but the resource overhead and UE processing burden increase
Solution Approach 1:
The network configures multiple CLI measurement resources to ensure measurement reliability, but the UE indicates its capability to process only a limited quantity of these resources. The network then adjusts the actual number of measured resources based on the UE's capability indication, achieving reliable measurements while controlling resource overhead and processing burden.
3Adaptability or versatility
If the UE supports more CLI resources per time unit or frequency unit, then the adaptability and flexibility improve, but the device complexity and power consumption increase
Solution Approach 1:
The UE dynamically indicates its CLI resource capability to the network, allowing the network to adapt the configuration based on current UE state. The UE can adjust the number of CLI resources it processes per time unit or frequency unit based on its power availability and processing capacity, achieving flexibility while controlling power consumption.
Solution Approach 2:
The UE provides feedback to the network about its capability to support CLI resources per time unit or frequency unit. The network uses this feedback to configure appropriate CLI measurement resources, ensuring the UE operates within its power and processing constraints while maintaining adequate adaptability.
Data Source
AI summary
Certain aspects of the present disclosure provide techniques related to cross link interference (CLI) resource capability. An example method, performed at a user equipment (UE), includes outputting, for transmission, signaling indicating a quantity of resources the UE is capable of supporting, per a time unit or per a frequency unit, for measurement of at least cross link interference (CLI), obtaining a configuration in accordance with the indicated quantity of resources, measuring the CLI in accordance with the configuration, and outputting, for transmission, a CLI report based on the measuring.