Energy-Saving Cell Reselection Configuration for Wireless Terminals
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Solution Overview
Problem
Existing technologies do not effectively address how terminals that support network energy-saving perform cell selection and/or reselection, leading to inefficiencies in network energy management.
Innovation Solution
A method and apparatus for cell selection and/or reselection that involves receiving and acting on target configuration information related to network energy-saving, including first configuration information on cell access permissions, second configuration information on frequency and cell lists for energy-saving cells, and third configuration information on reselection criteria.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the network performs energy-saving operations by entering cells into energy-saving state, then energy consumption is reduced, but the terminal cannot properly perform cell selection and reselection to energy-saving cells
Solution Approach 1:
The patent introduces target configuration information as an intermediary mechanism that bridges the network energy-saving state and terminal cell selection capability. This configuration information includes first configuration information (access permission indicators), second configuration information (frequency lists and cell lists identifying energy-saving cells), and third configuration information (reselection criteria). The intermediary enables terminals to properly identify and select energy-saving cells without disrupting the network's energy-saving operations.
2Productivity
If different processing is performed for terminals supporting network energy-saving and legacy terminals, then network energy management is optimized, but the complexity of terminal processing increases
Solution Approach 1:
The patent segments the differentiation between terminal types by introducing type-specific configuration information. The target configuration information is specifically designed for terminals supporting network energy-saving, while legacy terminals continue using existing configuration mechanisms. This segmentation allows the network to optimize energy management for supportive terminals without requiring all terminals to implement complex new processing logic.
Solution Approach 2:
The patent changes the parameters of cell selection and reselection by introducing new configuration information elements (first, second, and third configuration information). These parameter changes enable differentiated processing without fundamentally altering the existing terminal architecture, thereby optimizing network energy management while controlling processing complexity.
3Loss of energy
If the terminal is allowed to select and reselect to energy-saving cells, then network energy-saving is achieved, but the terminal may not have sufficient information to make informed selection decisions
Solution Approach 1:
The patent applies preliminary action by providing the terminal with advance configuration information before cell selection occurs. The target configuration information includes pre-provided frequency lists, cell lists identifying energy-saving cells, and reselection criteria. This preliminary information enables the terminal to make informed cell selection decisions without requiring real-time complex analysis, ensuring both energy-saving and information completeness.
Data Source
AI summary
This application discloses a cell selection or reselection method and apparatus. The cell selection or reselection method includes: A terminal receives target configuration information; and the terminal performs cell selection or reselection based on the target configuration information, where the target configuration information is related to network energy-saving, and the target configuration information includes at least one of the following: first configuration information, used to indicate whether the terminal is allowed to select or reselect to a cell; second configuration information, including a first frequency list or a first cell list, where the first frequency list includes a frequency of a cell that supports network energy-saving or a frequency that supports network energy-saving, and the first cell list includes the cell that supports network energy-saving; and third configuration information, used to indicate reselection information related to network energy-saving.