UE Power Awareness in TD-SCDMA Inter-RAT Measurement
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In wireless communication systems, particularly in Time Division Synchronous Code Division Multiple Access (TD-SCDMA), user equipment (UE) batteries face power consumption issues due to frequent inter-radio access technology (inter-RAT) measurements, which reduce battery life when power levels are low.
Innovation Solution
Implementing a method to determine when remaining battery power falls below certain threshold values, allowing the UE to either skip or extend inter-RAT measurements, thereby conserving power and improving performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If inter-RAT measurements are performed frequently to ensure network optimization and handover accuracy, then measurement precision and network performance are improved, but battery power consumption increases and battery life decreases
Solution Approach 1:
The patent applies dynamics by making the inter-RAT measurement periodicity adjustable rather than fixed. The measurement periodicity is dynamically changed based on battery power levels - when power is sufficient, measurements occur at normal intervals for optimal network performance; when power is low, the periodicity is extended to reduce measurement frequency and conserve battery power.
Solution Approach 2:
The patent changes the parameter of measurement periodicity based on battery power conditions. By monitoring battery power levels and adjusting the measurement periodicity accordingly, the system optimizes between measurement precision requirements and power consumption constraints, resolving the contradiction between these two parameters.
2Reliability
If inter-RAT measurements are performed continuously to maintain network connectivity, then network reliability is improved, but battery life is reduced
Solution Approach 1:
The patent implements periodic action by performing inter-RAT measurements at scheduled intervals rather than continuously. The measurement periodicity is adjusted based on battery power levels, creating a rhythm of measurement activity that balances network reliability monitoring with battery power conservation, allowing the device to maintain connectivity while extending battery life.
Solution Approach 2:
The system uses feedback from battery power level monitoring to adjust measurement behavior. When battery power is detected to be low, the system responds by extending measurement periodicity, creating a closed-loop control that balances network reliability requirements with power conservation based on real-time power conditions.
3Duration of action of stationary object
If measurement periodicity is increased to conserve battery power, then battery life is extended, but network response time increases and productivity decreases
Solution Approach 1:
The system dynamically adjusts measurement periodicity based on actual battery power conditions. When power is abundant, measurements occur frequently for optimal network response; when power is constrained, the periodicity is extended to conserve battery life. This dynamic adaptation resolves the contradiction by making the system flexible rather than fixed in its measurement behavior.
Data Source
AI summary
A user equipment may save power by reducing certain battery draining activities when the battery power remaining in the UE fails to meet a threshold value. The UE may skip inter-radio access technology measurements to conserve battery life when the battery power in the UE fails to meet the threshold. The UE may also extend inter-radio access technology measurement periodicity when the battery power in the UE fails to meet the threshold.