Conditional Handover Counter Mechanism for UE Power Optimization
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Solution Overview
Problem
Current wireless communication systems face inefficiencies in power consumption and resource management due to frequent measurement reporting by user equipment (UEs), particularly for RedCap devices at cell edges, which leads to reduced battery life and unnecessary resource reservations.
Innovation Solution
Implementing a conditional handover (CHO) mechanism with a counter-based reporting system, where UEs increment a counter upon meeting a leaving condition and deactivate the CHO configuration when reaching a threshold, reducing measurement reports and resource reservations, and using a timer for re-activating stored CHO configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If frequent measurement reporting is implemented, then measurement precision is improved, but power consumption increases and battery life decreases
Solution Approach 1:
The patent implements dynamic measurement reporting by introducing a counter mechanism that adapts reporting frequency based on network conditions. The counter increments with each measurement report and resets when certain conditions are met, allowing the system to reduce reporting frequency when conditions stabilize while maintaining precision when needed, thus resolving the contradiction between measurement accuracy and power consumption
Solution Approach 2:
The patent changes the parameter of measurement reporting frequency dynamically. By introducing a counter that tracks the number of reports sent and comparing it against threshold values, the system adjusts the effective reporting frequency based on current network conditions, reducing unnecessary reports that consume power while maintaining sufficient measurement precision for handover decisions
2Measurement precision
If frequent measurement reporting is implemented, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent implements self-service by having the terminal device autonomously manage the measurement reporting process through an internal counter mechanism. The device automatically increments the counter, evaluates threshold conditions, and decides when to send reports without requiring complex network control or manual configuration, thus reducing system complexity while maintaining measurement precision
Solution Approach 2:
The patent introduces a feedback mechanism where the counter receives feedback from the measurement reporting process itself. Each time a report is sent, the counter increments and provides feedback about the reporting frequency, allowing the system to automatically adjust future reporting behavior based on past actions, simplifying the overall control logic while ensuring precise measurements
3Reliability
If CHO configuration is maintained continuously, then reliability is improved, but resource efficiency deteriorates
Solution Approach 1:
The patent applies dynamics to CHO configuration management by introducing a counter that tracks the number of times the leaving condition has been met. The system dynamically adjusts the maintenance status of CHO configuration based on this counter, continuing to maintain it when the counter is below the threshold (ensuring reliability) and deactivating it when the threshold is reached (improving resource efficiency), thus resolving the contradiction between reliability and resource waste
Solution Approach 2:
The patent changes the parameter of CHO configuration status from a static continuous state to a dynamic state that varies based on the counter value. By comparing the counter against threshold parameters, the system adjusts the configuration maintenance status, reducing resource reservations when the leaving condition occurs frequently while maintaining reliability when the counter indicates stable conditions
Data Source
AI summary
There is provided an apparatus for a terminal, the apparatus comprising means configured to perform: receiving a message from a serving cell, wherein the message comprises a configuration for a measurement event and a configuration for a conditional handover, the configuration for the measurement event comprising a leaving condition. The means are further configured to perform, in response to measuring the leaving condition of the measurement event being met, incrementing a counter, and when it is determined that the counter has reached a threshold value, deactivating the received configuration for the conditional handover and providing a measurement report to the serving cell, the measurement report indicating that the leaving condition of the measurement event has been met.