Frequency Measurement Configuration for RRC Idle Terminals
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Solution Overview
Problem
In next-generation mobile communication systems, there is a need for terminals to quickly report frequency measurement results to base stations to enable rapid configuration of carrier aggregation (CA) or dual connectivity (DC) technologies, which is currently hindered by delayed frequency measurement reporting in RRC idle or inactive modes.
Innovation Solution
The method involves the base station setting configuration information for frequency measurement in RRC messages to terminals in idle or inactive modes, allowing them to perform frequency measurements during cell selection or reselection procedures and report results immediately upon reconnecting, enabling early measurement and reporting of frequency measurement results.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If terminals perform frequency measurement in RRC idle or inactive modes, then measurement time is reduced and network configuration speed is improved, but measurement precision and reliability may deteriorate due to limited measurement opportunities in idle states
Solution Approach 1:
The terminal performs frequency measurement in advance while in RRC idle or inactive mode, before actually needing to report the measurement results. This preliminary measurement action allows the terminal to have measurement results ready when transitioning to connected mode, significantly reducing the time loss for frequency measurement and enabling faster network configuration of CA or DC technologies.
2Productivity
If terminals report frequency measurement results immediately upon reconnection, then network configuration speed is improved, but signaling overhead increases due to additional reporting procedures
Solution Approach 1:
The frequency measurement result reporting is merged with the existing RRC connection resume or setup procedures. Instead of adding a separate reporting step, the measurement results are included in the same signaling messages already exchanged during connection establishment, thereby improving network configuration speed without significantly increasing signaling overhead.
3Productivity
If base station configures CA or DC technologies rapidly, then network efficiency is improved, but system complexity increases due to additional configuration management
Solution Approach 1:
The system implements feedback mechanisms where the terminal reports frequency measurement results that include information about suitable frequencies for CA or DC configuration. The base station uses this feedback to make informed configuration decisions, rapidly configuring CA or DC technologies based on actual measurement data while maintaining manageable system complexity through automated decision-making algorithms.
Data Source
AI summary
The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services.