RSSI Resource Configuration for CLI Measurement in 5G
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Solution Overview
Problem
Current 5G networks face challenges in effectively measuring and mitigating crosslink interference (CLI) due to the dynamic nature of uplink and downlink operations, particularly in user equipment (UE) to UE and transmission and reception point (TRP) to TRP interference, which affects signal quality and network performance.
Innovation Solution
The implementation of a new RSSI measurement resource configuration that includes slot-level, symbol-level, physical resource block-level, resource element pattern, and receive beam indication elements, allowing for precise CLI measurement and reporting by user equipment (UE) and base stations in 5G networks, utilizing specific information elements (IEs) to configure and perform CLI-RSSI measurements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional RSSI measurement methods are used in 5G networks, then the measurement process is simple, but the measurement precision is insufficient to accurately capture crosslink interference in dynamic uplink-downlink operations
Solution Approach 1:
The RSSI measurement resource configuration is segmented into multiple hierarchical levels: slot-level indication IEs, symbol-level indication IEs, physical resource block-level indication IEs, resource element pattern indication IEs, and receive beam indication IEs. Each level provides granular control over specific aspects of the measurement, enabling precise CLI measurement while organizing complexity in a structured manner
Solution Approach 2:
The configuration enables dynamic adaptation to varying interference conditions by allowing the network to selectively activate different measurement resources and parameters based on actual CLI scenarios. The slot-level, symbol-level, and resource block-level indications allow flexible adjustment of measurement granularity to match dynamic uplink-downlink operation patterns
2Reliability
If granular RSSI measurement configuration is implemented, then CLI measurement accuracy improves, but the configuration and operation complexity increases
Solution Approach 1:
The measurement configuration is divided into distinct information elements at different granularities (slot-level, symbol-level, resource block-level, resource element-level, and beam-level). This segmentation allows the network to configure only the necessary levels of detail for each specific CLI scenario, improving reliability while managing operational complexity through modular configuration
Solution Approach 2:
The patent introduces a structured information element framework that acts as an intermediary between the network's CLI mitigation goals and the actual measurement execution. These IEs serve as standardized interfaces that simplify configuration while enabling fine-grained control, making the system more reliable and easier to operate
Data Source
AI summary
Provided herein are systems and methods of configuring received signal strength indicator (RSSI) measurements to determine crosslink interferences (CLI). For instance, a user equipment (UE) can receive, using radio front-end circuitry, a RSSI resource configuration for CLI measurement from a base station in a 5G network. The UE can then measure a RSSI of one or more received signals based at least in part on the RSSI resource configuration. The UE can then perform one or more CLI measurements based at least in part on the measured RSSI. The RSSI resource configuration includes an identifier information element (IE), one or more slot-level indication IEs, one or more symbol-level indication IEs, one or more physical resource block (PRB)-level indication IEs, one or more resource element (RE) pattern indication IEs, and one or more receive beam indication IEs.