Conditional Reconfiguration in 5G Mobility Management
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Solution Overview
Problem
The 5G communication system faces challenges in mobility due to network node changes within a short period, particularly with the introduction of new services like network energy saving and non-terrestrial networks, which complicate conditional reconfiguration processes.
Innovation Solution
The method involves receiving RRC reconfiguration messages from a base station, processing physical layer control information for conditional reconfiguration, and applying RRC reconfiguration based on specific applicable cell parameters, including reference signal received power, to manage cell configurations effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If network node changes are implemented to support new services like network energy saving and non-terrestrial networks, then service versatility is improved, but mobility management complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-configuring candidate cells with RRC reconfiguration messages before actual handover occurs. The network prepares multiple candidate cells in advance and provides their configuration information to the UE, enabling fast and reliable mobility management when service requirements change, thus reducing real-time complexity while maintaining versatility
2Reliability
If conditional reconfiguration is applied to manage network node changes, then mobility management is improved, but measurement and evaluation complexity increases
Solution Approach 1:
The patent introduces physical layer control information as an intermediary mechanism between the network and UE for conditional reconfiguration. This control information acts as a mediator that carries evaluation conditions and reconfiguration instructions, simplifying the measurement and evaluation process by providing structured, pre-processed data that the UE can directly use for decision-making without complex local calculations
3Manufacturing precision
If RRC reconfiguration messages are applied based on physical layer control information, then reconfiguration accuracy is improved, but processing time increases
Solution Approach 1:
The patent applies preliminary action by pre-preparing RRC reconfiguration messages for candidate cells and storing them in advance. When a handover decision is made, the UE can immediately apply the pre-configured message without needing to perform complex real-time configuration calculations, thus achieving high accuracy while minimizing processing time delay
Data Source
AI summary
A method and apparatus to support conditional reconfiguration is provided. Method for supporting conditional reconfiguration includes receiving from a base station a RRC reconfiguration message, receive from the base station physical layer control information related to conditional reconfiguration and applying a RRC reconfiguration message associated with a specific applicable cell based on whether the specific applicable cell is configured with a first parameter, whether the physical layer control information related to conditional reconfiguration is received, reference signal received power of the specific applicable cell and a specific bit of the physical layer control information.