User Equipment Interference Measurement Across Spatial and Frequency Domains
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Solution Overview
Problem
Existing communication systems, particularly in 5G NR, face challenges in efficiently managing and reporting interference, especially in spatial and frequency domains, which affects the performance of devices and network operations.
Innovation Solution
The implementation of a user equipment (UE) with a transceiver and circuitry that measures interference per frequency range and/or spatial direction, generating a measurement report to facilitate efficient interference management and reporting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If interference measurement is performed in traditional communication systems, then interference information can be obtained, but the measurement precision and granularity in spatial and frequency domains are insufficient
Solution Approach 1:
The patent segments the interference measurement process into spatial domain (per spatial direction) and frequency domain (per frequency range) components. The UE measures interference separately in different spatial directions and frequency ranges, then reports these segmented measurements to the base station. This segmentation enables precise interference identification without requiring complex full-dimension measurement systems.
Solution Approach 2:
The patent introduces spatial direction as an additional dimension for interference measurement beyond traditional frequency-domain measurement. By measuring interference per spatial direction and combining it with frequency range information, the system achieves three-dimensional interference characterization (spatial direction × frequency range × time), significantly improving measurement precision without proportionally increasing system complexity.
2Reliability
If detailed interference measurement per frequency range and spatial direction is implemented, then interference management accuracy improves, but signaling overhead and processing load increase
Solution Approach 1:
The patent extracts only the essential interference information (interference power per spatial direction and frequency range) from the complete measurement data and reports this extracted information to the base station. Rather than reporting all raw measurement data, the system extracts and transmits only the relevant interference metrics, reducing signaling overhead while maintaining interference management accuracy.
Solution Approach 2:
The patent changes the reporting parameters from traditional wideband interference measurements to segmented measurements per frequency range and per spatial direction. This parameter transformation allows the system to provide detailed interference information where needed while using configurable frequency range granularity to control the amount of reported data, balancing accuracy with signaling efficiency.
3Productivity
If traditional interference reporting methods are used, then system operation is simple, but resource allocation efficiency deteriorates due to insufficient interference information
Solution Approach 1:
The patent implements a feedback mechanism where the UE continuously measures and reports interference information per spatial direction and frequency range to the base station. The base station uses this feedback to dynamically adjust resource allocation decisions, avoiding allocations in high-interference spatial-frequency regions. This feedback loop improves resource allocation efficiency while maintaining manageable system operation through standardized reporting procedures.
Data Source
AI summary
Techniques disclosed herein feature a user equipment, a base station, and communication methods for a UE and for a base station. The UE comprises a transceiver and circuitry which, in operation, controls the transceiver to measure interference per frequency range on one or more configured frequency ranges and/or per spatial direction in one or more configured spatial directions, and to generate a measurement report including an indication of the measured interference per frequency range and/or per spatial direction. The transceiver, in operation, transmits the measurement report.