Cell Reselection Measurements Based on Cell Operating State
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Solution Overview
Problem
Wireless communication systems face high energy consumption due to synchronization signal usage, particularly in densely deployed networks with massive MIMO and high-frequency operations.
Innovation Solution
Implementing cell reselection based on cell state changes, allowing cells to transition to inactive states with reduced energy consumption by transmitting discovery signals only when necessary, and utilizing network energy saving states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cells continuously transmit synchronization signals for cell reselection, then cell reselection reliability is improved, but energy consumption increases
Solution Approach 1:
The patent implements periodic cell state transitions where cells alternate between active and inactive states. Synchronization signals are transmitted periodically rather than continuously, with cells switching to inactive state after certain conditions are met (e.g., no user activity for a threshold period). This periodic operation maintains cell reselection functionality while significantly reducing energy consumption during inactive periods.
Solution Approach 2:
The patent introduces dynamic cell state management where cells can transition between active and inactive states based on real-time network conditions and user activity. The cell state is not fixed but dynamically adjusted, allowing the system to optimize energy consumption while maintaining service quality. Users can be migrated to other cells before inactive state activation to ensure continuous service.
Data Source
AI summary
Apparatuses, methods, and systems are disclosed for measuring for cell reselection based on a cell state. One method (500) includes camping (502), at a user equipment, on a cell. The method (500) includes receiving (504) information indicating a change of a cell operating state of the cell. The method (500) includes performing (506) measurements for cell reselection based on the information indicating the change of the cell operating state of the cell. The measurements for cell reselection include intra-frequency measurements, inter-frequency measurements, inter-RAT measurements, or a combination thereof.