Event-triggered Early Measurement Reporting for 5G CA/DC Setup
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Solution Overview
Problem
Current 5G wireless communication systems face inefficiencies in carrier aggregation and dual connectivity setup due to lengthy detection and measurement delays for FR2 cells, leading to prolonged CA/DC setup times and potential inaccuracies in early measurement reporting, especially when the T331 timer expires.
Innovation Solution
Implementing event-triggered early measurement reporting (EMR) to allow for flexible and timely reporting of measurement results, even after the T331 timer has expired, by configuring EMR events based on target cell conditions and measurement availability, enabling more accurate and efficient CA/DC setup.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional measurement reporting is used with T331 timer, then measurement reporting is performed within a fixed time window, but measurement accuracy deteriorates when the timer expires before measurements are complete
Solution Approach 1:
The patent transforms the static T331 timer-based measurement reporting into a dynamic event-triggered mechanism. Instead of forcing measurements to complete within a fixed time window, the system now allows measurements to be reported when specific events occur (e.g., when measurement criteria are met), enabling flexible timing that adapts to actual measurement progress and network conditions.
Solution Approach 2:
The patent implements preliminary measurement configuration where the network entity pre-configures measurement parameters and event triggers before the UE performs measurements. This allows the UE to start measurements immediately upon receiving configuration, and report results as soon as event criteria are met, rather than waiting for a timer to expire.
2Productivity
If early measurement reporting is performed before T331 timer expires, then CA/DC setup can proceed, but measurement results may be inaccurate due to incomplete measurements
Solution Approach 1:
The patent implements an event-triggered feedback mechanism where the UE continuously monitors measurement results against predefined event criteria (e.g., A3 event for neighbor cell becoming better than serving cell). When the event condition is met, the UE triggers a measurement report, ensuring that reporting only occurs when measurements are sufficiently complete and accurate.
Solution Approach 2:
The patent allows dynamic adjustment of measurement parameters and event thresholds based on network conditions and UE capabilities. The network can configure different event triggers (A1-A6 events) with adjustable offsets and hysteresis values, enabling optimization of the balance between measurement accuracy and reporting timing for different scenarios.
3Ease of operation
If measurement configuration is strictly enforced within T331 timer window, then reporting timing is controlled, but flexibility in reporting is reduced leading to prolonged setup times
Solution Approach 1:
The patent replaces the static T331 timer constraint with dynamic event-triggered reporting. The UE now has the flexibility to report measurements as soon as event criteria are met, without being bound to a fixed timer window. This dynamic approach allows the system to adapt to varying measurement speeds and network conditions, reducing unnecessary delays.
Solution Approach 2:
The patent enables the UE to autonomously determine when to trigger measurement reports based on locally evaluated event criteria. Instead of waiting for network commands or timer expiration, the UE independently monitors its measurement results and triggers reports when events occur, providing self-service functionality that reduces latency and improves flexibility.
Data Source
AI summary
Systems, methods, apparatuses, and computer program products for event-triggered EMR reporting. One method may include receiving, at a user equipment, from a network entity, a measurement configuration for early measurement reporting. The measurement configuration may include at least one early measurement reporting event associated with the user equipment re-accessing the network entity. The method may further include transmitting, to the network entity, an early measurement reporting result.