UE Self-Interference Reporting for Dynamic Frequency Band Scheduling
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Solution Overview
Problem
Existing 5G user equipment (UE) technologies face inefficiencies in managing frequency band combinations due to self-interference, leading to suboptimal network scheduling and increased memory load from pre-measured MSD values, without real-time measurement capabilities.
Innovation Solution
The UE performs self-interference measurements, such as MSD and SIR, based on configuration changes or network triggers, and reports these measurements to the network, allowing for dynamic mitigation actions like bandwidth part activation or resource scheduling adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If pre-measured MSD values are stored and used for frequency band combination management, then network scheduling can be performed, but memory load increases and the values do not reflect real-time conditions
Solution Approach 1:
The patent performs self-interference measurements in advance during UE initialization or configuration changes, storing the measured MSD values for later use in network scheduling decisions. This preliminary measurement approach eliminates the need for continuous real-time measurements while providing accurate baseline data for scheduling efficiency.
Solution Approach 2:
The patent dynamically adjusts measurement triggers based on changing network conditions and UE configurations. Instead of continuously measuring, the system changes the measurement parameter from continuous to event-driven (triggered by configuration changes, connection establishment, or network requests), reducing memory load while maintaining scheduling efficiency.
2Measurement precision
If self-interference measurements are performed continuously to manage frequency band combinations, then scheduling accuracy improves, but measurement overhead and processing load increase
Solution Approach 1:
The patent implements periodic or event-driven measurements rather than continuous measurement. The system performs self-interference measurements at specific intervals or when triggered by configuration changes, connection establishment, or network requests, maintaining measurement accuracy while significantly reducing processing load.
Solution Approach 2:
The UE autonomously performs self-interference measurements and reports the results to the network without requiring continuous network control. The UE self-manages the measurement process, triggering measurements based on local configuration changes and network requests, thereby reducing overall system complexity.
3Speed
If the network schedules frequency band combinations without real-time self-interference data, then scheduling speed increases, but data throughput decreases due to suboptimal resource allocation
Solution Approach 1:
The patent performs self-interference measurements in advance during UE initialization or configuration changes, storing the measured MSD values for later use in network scheduling decisions. This preliminary measurement approach enables fast scheduling while maintaining throughput optimization, as the network has accurate baseline data without requiring real-time measurements during active communication.
Solution Approach 2:
The patent establishes a feedback mechanism where the UE measures self-interference, reports to the network, and the network uses this information to optimize scheduling decisions. This feedback loop enables the network to adjust resource allocation based on actual interference conditions, improving data throughput while maintaining scheduling speed through efficient feedback-driven optimization.
Data Source
AI summary
The present application relates to performing and reporting a self-interference measurement of a user equipment (UE) for a frequency band combination to assist with managing, at least in part, the UE's use of the frequency band combination. In an example, the self-interference measurement can include any or a combination of a maximum sensitivity degradation (MSD) measurement or a signal to interference ratio (SIR) measurement due to interference between an uplink transmission and a downlink transmission of the UE on the frequency band combination. Different triggers are possible to perform the self-interference measurement such as a configuration change to the UE or an acceptable inter-cell interference measurement. Based on the self-interference measurement, a network can enable the UE to use the frequency band combination or can initiate a mitigation action.