Bandwidth Part Configuration for Selective CSI-RS Measurement
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Solution Overview
Problem
Existing wireless communication systems face inefficiencies in configuring bandwidth parts (BWPs) due to the need for channel state information reference signal (CSI-RS) measurements, which can lead to resource utilization challenges and energy consumption issues.
Innovation Solution
Configuring bandwidth parts (BWPs) with indications to refrain from measuring CSI-RSs, allowing for optimized resource allocation and energy savings by reducing unnecessary measurements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If CSI-RS measurements are performed on all BWPs, then channel state information accuracy is improved, but energy consumption increases
Solution Approach 1:
The patent applies local quality by configuring different measurement requirements for different BWPs. Specifically, the first BWP is configured to require CSI-RS measurements while the second BWP is configured to exempt from CSI-RS measurements. This differentiated approach ensures that measurements are performed only where necessary (maintaining local accuracy where needed) while avoiding unnecessary energy consumption in BWPs where measurements are not required.
2Measurement precision
If CSI-RS measurements are performed on all BWPs, then channel state information accuracy is improved, but resource utilization efficiency deteriorates
Solution Approach 1:
The patent implements local quality by applying different measurement policies to different BWPs based on their specific requirements. The first BWP maintains high measurement precision through CSI-RS measurements, while the second BWP skips measurements to improve resource utilization efficiency. This localized differentiation resolves the contradiction by optimizing each BWP individually rather than applying a uniform measurement policy across all BWPs.
3Measurement precision
If BWP configuration includes CSI-RS resources, then measurement capability is improved, but device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the BWP configuration into distinct types: BWPs with CSI-RS resources (first BWP) and BWPs without CSI-RS resources (second BWP). Each BWP type has its own configuration parameters and measurement requirements. This segmentation reduces overall device complexity by allowing the system to selectively apply measurement configurations only where needed, rather than requiring complex configuration management for all BWPs uniformly.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an indication of a first configuration of a first bandwidth part (BWP) associated with a primary cell of a communication link. The UE may receive an indication of a second configuration of a second BWP associated with a secondary cell, the second configuration of the second BWP being associated with refraining from measuring of channel state information reference signals (CSI-RSs). Numerous other aspects are described.


