Filter Coefficient Configuration for NR Measurement Accuracy
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Solution Overview
Problem
Current wireless communication systems, particularly in New Radio (NR) networks, face challenges in effectively configuring measurement configurations and filter coefficients for radio resource management (RRM), which are crucial for beam level and cell level measurements, leading to inefficiencies in signal reporting and handover decisions.
Innovation Solution
The implementation of a measurement and filtering system that configures filter coefficients for user equipment (UE) to perform beam and cell measurements, using RRC signalling to filter and report measurements, enabling more accurate evaluation of reporting criteria and improved RRM operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If filter coefficients are configured for beam and cell measurements in NR systems, then measurement precision is improved, but device complexity increases due to additional filtering configurations and signalling requirements
Solution Approach 1:
The patent applies parameter changes by configuring different filter coefficients (e.g., q-Delta values) for different measurement types (beam vs. cell measurements). The network entity can dynamically adjust filtering parameters based on measurement requirements, enabling precise control over measurement accuracy while adapting to different operational scenarios in NR systems
Solution Approach 2:
The patent segments the measurement filtering process into distinct components: beam-level measurements with their own filter coefficients, cell-level measurements with separate coefficients, and reporting criteria evaluations. This segmentation allows independent optimization of each measurement type without interfering with others, managing complexity through structured division
2Measurement precision
If additional filtering is performed for beam reporting purposes, then measurement precision is improved, but loss of time increases due to additional processing requirements
Solution Approach 1:
The patent implements preliminary action by pre-configuring filter coefficients and measurement filtering parameters before actual measurements are performed. The network entity provides filtering configurations in advance through RRC signalling, so that when beam measurements need to be reported, the filtering is already set up and can be applied immediately without additional setup delays
Solution Approach 2:
The patent employs periodic action through configured measurement filtering that operates at specific intervals and triggers. Measurements are filtered periodically according to pre-configured criteria, and reporting is triggered when certain conditions are met, optimizing the balance between measurement accuracy and processing time by not continuously filtering but rather at meaningful intervals
3Reliability
If filter coefficient configurations are implemented for RRM operations, then reliability of handover decisions is improved, but device complexity increases due to additional configuration signalling
Solution Approach 1:
The patent applies universality by designing filter coefficient configurations that serve multiple functions: they are used for beam measurements, cell measurements, reporting criteria evaluations, and handover decisions. The same filtering infrastructure and coefficient configuration mechanisms support various RRM operations, reducing the need for separate configurations for each function and thereby managing signalling overhead
Data Source
AI summary
Aspects of filtering coefficient configuration operations are described. Some aspects include a user equipment (UE) decoding a measurement configuration information element (IE) including a measurement quantity parameter, a reference signal (RS)-type filter configuration and at least one filter coefficient. In some aspects, the UE filters at least one of a cell measurement result and a beam measurement result, according to the measurement configuration IE. If the measurement quantity parameter indicates the cell measurement quantity, the UE can filter the cell measurement result according to the RS type filter configuration and the filter coefficient to determine a measurement evaluation input for a measurement reporting operation. If the measurement quantity parameter indicates the beam measurement quantity, the UE can filter the beam measurement result according to the RS type filter configuration and the filter coefficient to determine a beam measurement selection input for a beam measurement selection operation.