UE CGI Reporting for NPN-Aware 5G Measurement Configuration
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Solution Overview
Problem
In 5G communication systems, the dynamic nature of channel and interference characteristics necessitates a method to support multiple services with varying requirements, such as eMBB, mMTC, and URLLC, by effectively managing channel state measurements and interference, particularly in the context of non-public networks (NPNs).
Innovation Solution
A method and apparatus for transmitting and receiving data in a wireless communication system that involves user equipment (UE) and base stations exchanging UE capability information, measurement configuration, and non-public network (NPN) identifier information to facilitate accurate channel state measurement and reporting, enabling efficient service provision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If channel state measurement is performed across all frequency resources, then measurement precision is improved, but loss of time increases due to extensive measurement requirements
Solution Approach 1:
The frequency resource group is divided into multiple subsets, where each subset corresponds to specific services (eMBB, mMTC, URLLC). The UE performs channel state measurement on only the relevant subset for its current service type, rather than measuring all frequency resources, thus reducing measurement time while maintaining precision for the required service
Solution Approach 2:
The UE performs partial measurement by selecting only the necessary frequency resource subset based on its service type. This partial action (measuring only required resources rather than all resources) reduces the measurement burden and time consumption while still providing sufficient measurement precision for the specific service requirements
2Loss of time
If channel state measurement is performed on a subset of frequency resources, then loss of time is reduced, but measurement precision deteriorates due to limited measurement scope
Solution Approach 1:
Different frequency resource subsets are assigned to different service types (eMBB, mMTC, URLLC), allowing each service to be measured on its locally optimized frequency resources. This local quality approach ensures that measurement precision is tailored to the specific requirements of each service type, maintaining high precision where needed while reducing overall measurement time
3Adaptability or versatility
If multiple services are provided with differentiated measurement, then adaptability is improved, but device complexity increases due to multiple measurement configurations
Solution Approach 1:
The base station configures multiple frequency resource group subsets that can serve multiple service types, and the UE can dynamically select and switch between these subsets based on its current service requirements. This multi-functionality approach allows the same measurement framework to support diverse services (eMBB, mMTC, URLLC) without requiring completely separate measurement systems, thus improving adaptability while controlling device complexity
Data Source
AI summary
In a wireless communication system, a method performed by a user equipment (UE) includes transmitting, to a base station, UE capability information including an indicator indicating that the UE supports cell global identifier (CGI) information reporting, receiving, from the base station, measurement configuration information including an indicator indicating a cell to which CGI information is to be reported, obtaining a non-public network (NPN) identifier information list for the indicated cell, and transmitting, to the base station, a measurement report message including the NPN identifier information list.