Aerial UE Measurement Reporting Prohibit Timer
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Solution Overview
Problem
Aerial User Equipments (UEs) in wireless communication systems experience frequent measurement reporting events due to an increased number of detected cells, leading to signaling overhead, which existing methods struggle to efficiently manage, particularly in scenarios involving handovers and RRC connection re-establishments.
Innovation Solution
Implementing a prohibit timer mechanism in wireless devices to control measurement reporting, starting the timer upon entering conditions being met and stopping it during handovers or RRC re-establishments to prevent unnecessary reporting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If measurement reporting is enabled for aerial UEs to capture all detected cells, then measurement precision is improved, but signaling overhead increases due to frequent reporting events
Solution Approach 1:
The patent applies dynamics by making the measurement reporting behavior adaptive rather than static. The prohibit timer is dynamically adjusted based on the UE's movement state (aerial vs. terrestrial) and the timing of handover events. The system transitions between different reporting modes (prohibit timer active vs. inactive) based on real-time conditions, allowing the measurement reporting mechanism to flexibly balance between capturing accurate cell information and reducing signaling overhead.
Solution Approach 2:
The patent changes key parameters of the measurement reporting mechanism, including the prohibit timer duration and the triggering conditions for measurement reports. By modifying these parameters based on UE location (aerial/terrestrial) and handover state, the system optimizes the balance between measurement accuracy and signaling overhead reduction.
2Object-generated harmful factors
If prohibit timer is used to reduce frequent measurement reporting, then signaling overhead is reduced, but measurement reporting may be delayed during handover procedures
Solution Approach 1:
The patent implements feedback mechanisms where the network monitors handover events and measurement report timing. Based on this feedback, the system adjusts the prohibit timer behavior to ensure that measurement reporting is suppressed during handover procedures to maintain reliability, while still reducing overall signaling overhead. The feedback loop allows the system to learn from actual handover performance and optimize prohibit timer configuration.
Solution Approach 2:
The patent applies preliminary action by proactively managing the prohibit timer state before handover events occur. The system anticipates potential handover situations and adjusts measurement reporting behavior in advance, ensuring that the prohibit timer is configured to maintain reliability during expected handover procedures while still providing overhead reduction benefits.
3Measurement precision
If measurement reporting is frequently triggered for aerial UEs with many detected cells, then measurement precision is improved, but device complexity increases due to frequent timer management
Solution Approach 1:
The patent applies universality by designing the prohibit timer mechanism to serve multiple functions simultaneously. The same timer infrastructure handles both the suppression of frequent measurement reports and the coordination of handover procedures. The timer is configured to perform different functions based on the operational context (aerial vs. terrestrial mode, handover state, etc.), reducing the need for separate complex mechanisms for each function.
Data Source
AI summary
A method and apparatus for supporting a measurement reporting enhancement for an aerial device in a wireless communication system is provided. A prohibit timer can be used in order to prohibit frequent measurement reporting, and the prohibit timer may be stopped when a leaving condition for the measurement reporting is satisfied and/or a handover procedure and/or a radio resource control (RRC) connection re-establishment procedure is performed.