UE Neighbor Cell Measurement Control for Wireless Power Saving
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Solution Overview
Problem
Current wireless communication systems face challenges in optimizing power consumption, particularly in cell reselection procedures, which impact battery life and efficiency, especially for power-sensitive devices.
Innovation Solution
Implementing intelligent power saving operations in wireless communication systems by determining movement states and operational conditions to selectively cease or resume signal measurements with neighbor cells, using location fingerprinting, power level monitoring, and background process analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If continuous signal measurements are performed for cell reselection procedures, then network reliability and connection quality are improved, but power consumption increases
Solution Approach 1:
The patent implements dynamic adjustment of measurement behavior based on detected movement states. When the UE is stationary, inter-frequency and inter-RAT measurements are suspended. When movement is detected, measurements are resumed. This dynamic adaptation resolves the contradiction by making the measurement system active only when necessary for maintaining network reliability.
Solution Approach 2:
The patent changes the operational parameters of the measurement system based on movement detection. The measurement configuration is modified from continuous to suspended state when stationary, and from suspended to continuous state when moving. This parameter change allows the system to maintain reliability only when movement occurs, thereby reducing overall power consumption.
2Reliability
If frequent cell reselection measurements are performed, then connection quality and network reliability are improved, but battery life deteriorates
Solution Approach 1:
Instead of continuous measurements, the patent implements periodic measurements triggered by movement detection events. The measurement process is activated periodically when movement conditions are met and suspended during stationary periods. This periodic action pattern maintains connection quality during movement while extending battery life during stationary periods.
Solution Approach 2:
The patent extracts and removes unnecessary measurement operations from the continuous process. By identifying and removing measurements performed during stationary states, the system eliminates wasteful power consumption while retaining essential measurements during movement, thereby extending battery life without compromising connection quality when needed.
3Measurement precision
If the UE performs inter-frequency and inter-RAT measurements continuously, then cell reselection accuracy is improved, but energy consumption increases
Solution Approach 1:
The patent applies dynamic control to the measurement process, adjusting the intensity and frequency of inter-frequency and inter-RAT measurements based on the UE's movement state. During stationary periods, these energy-intensive measurements are suspended. During movement periods, measurements are activated to ensure accurate cell reselection. This dynamic approach maintains measurement precision when needed while reducing energy loss during stationary periods.
Data Source
AI summary
Some aspects relate to apparatuses and methods for implementing mechanisms for intelligent power saving in a wireless communication system. For example, a user equipment (UE) is configured to determine whether a movement state associated with the UE satisfies one or more movement conditions. The UE can further determine operational information associated with the UE, in response to the determination that the movement state associated with the UE satisfies the one or more movement conditions. The operational information can include location information, power level information, or background process information. The UE can further cease, at least based on the operational information and one or more operational conditions being satisfied, a signal measurement associated with a neighbor cell.