Terminal CSI Measurement Resource Configuration for Multi-TRP
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Solution Overview
Problem
In Next-Generation Mobile Communication Systems, specifically in NR (New Radio) specifications like Rel. 15, the measurement and reporting of CSI (Channel State Information) for multi panel/TRP configurations are not adequately addressed, leading to potential system performance deterioration and reduced throughput.
Innovation Solution
A terminal equipped with a receiving section for configuring resources for channel measurements and a control section to determine the appropriate use of these resources for multiple transmission/reception points, enabling accurate CSI measurement and reporting across multiple panels/TRPs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing NR specifications (Rel. 15) are used for multi panel/TRP configurations, then the system maintains compatibility with current standards, but CSI measurement and reporting become inadequate leading to system performance deterioration
Solution Approach 1:
The patent segments the channel measurement process by introducing separate resource configurations for first channel measurement and second channel measurement. Each measurement type corresponds to different transmission/reception point scenarios, allowing independent optimization of measurement resources and methods for each case.
Solution Approach 2:
The patent enables dynamic selection and configuration of measurement resources based on the specific multi panel/TRP scenario. The base station can flexibly allocate resources for first channel measurement versus second channel measurement according to actual network conditions and requirements.
2Productivity
If multi panel/TRP configurations are implemented without dedicated resource configurations, then device complexity is reduced, but CSI reporting accuracy deteriorates leading to reduced throughput
Solution Approach 1:
The patent performs preliminary configuration of measurement resources through dedicated resource configurations before actual CSI measurement and reporting. The base station pre-allocates resources for first channel measurement and second channel measurement, ensuring that appropriate measurement resources are available when multi panel/TRP operations are required.
Solution Approach 2:
The patent changes the configuration parameters by introducing distinct resource configurations for different measurement types. This includes configuring different resource sets, measurement quantities, and reporting formats tailored to specific multi panel/TRP scenarios, thereby optimizing throughput for each case.
3Measurement precision
If generic channel measurement resources are used for all transmission points, then configuration complexity is reduced, but measurement precision for specific TRP scenarios deteriorates
Solution Approach 1:
The patent applies local quality by creating specialized resource configurations tailored to specific measurement needs. The first resource configuration is optimized for first channel measurement scenarios while the second resource configuration is optimized for second channel measurement scenarios, ensuring each TRP type receives appropriately customized measurement resources.
Solution Approach 2:
The patent creates a universal framework that handles both single TRP and multi TRP scenarios through a unified resource configuration mechanism. The same base station can manage multiple resource configurations simultaneously, adapting to different transmission scenarios without requiring separate dedicated systems for each case.
Data Source
AI summary
Measurement and report of CSI for a multi panel/TRP is appropriately performed. A terminal according to one aspect of the present disclosure includes a receiving section that receives configuration information regarding a resource for first channel measurement related to a resource group for first channel measurement and a resource for second channel measurement related to a resource group for second channel measurement, and a control section that determines whether or not to use the resource for first channel measurement and the resource for second channel measurement for measurement for a plurality of transmission/reception points.