Cell Reselection Control for Specified UE Using MIB and SIB
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Solution Overview
Problem
Existing communication technologies fail to accurately perform cell reselection operations for User Equipment (UE) when a cell is determined to be inaccessible based on the Master Information Block (MIB).
Innovation Solution
A cell reselection method for specified UE that determines a cell barred identifier in the MIB and performs a cell reselection operation using a cell reselection identifier in the MIB and/or a System Information Block (SIB) to accurately handle cell access and reselection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the MIB is used to control cell access for all UE, then the cell access control is simplified, but the cell reselection accuracy for specified UE deteriorates
Solution Approach 1:
The patent segments the cell reselection control into two parts: a common cell reselection identifier in the MIB for general UE, and a specified UE-specific cell reselection identifier in the SIB for particular UE types. This segmentation allows the system to maintain simple common control while providing accurate specialized control when needed.
Solution Approach 2:
The patent applies local quality by providing different levels of control precision to different UE. General UE receive basic control through the MIB, while specified UE receive enhanced local control through the SIB-specific identifier, allowing accurate cell reselection determination for those requiring specialized handling.
2Ease of operation
If only the MIB is used for cell reselection determination, then the control process is simplified, but the adaptability to various application scenarios deteriorates
Solution Approach 1:
The patent makes the cell reselection control system universal by implementing a multi-layered identifier structure. The MIB provides universal basic control for all UE, while the SIB provides additional universal applicability for specified UE types across various application scenarios, making the system adaptable to diverse requirements.
Solution Approach 2:
The patent introduces dynamics by allowing the control mechanism to adapt based on UE type. The system dynamically selects whether to use only the MIB identifier or both MIB and SIB identifiers, providing flexibility to adjust control granularity according to the specific application scenario and UE characteristics.
3Reliability
If the MIB indicates access barred for specified UE, then the access control is enforced, but the cell reselection operation timing deteriorates
Solution Approach 1:
The patent applies preliminary action by providing the specified UE with both the common cell reselection identifier in the MIB and the UE-specific identifier in the SIB in advance. This allows the UE to have all necessary information ready before access barred determination, enabling timely cell reselection operations without waiting for additional signaling.
Solution Approach 2:
The patent implements feedback by providing UE-specific cell reselection identifiers that give precise feedback to specified UE about their reselection status. This targeted feedback mechanism ensures that specified UE receive accurate, personalized control information that enables timely and appropriate cell reselection decisions.
Data Source
AI summary
A cell reselection method specified UE determines a cell barred identifier in a MIB indicating access barred, and performs a cell reselection operation according to one or both of a cell reselection identifier in the MIB and a cell reselection identifier for of the specified UE in a SIB.