Measurement Gap Configuration for UE Mobility and Communication
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Solution Overview
Problem
Existing wireless communication systems face inefficiencies in configuring measurement gaps due to fixed durations that do not account for varying UE capabilities, mobility states, and the need for simultaneous communication during gaps, leading to suboptimal performance.
Innovation Solution
Configuring measurement gaps based on UE information, such as capabilities and mobility state, allowing for varying durations and periodicities, and enabling communication during gaps for specific applications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If fixed duration measurement gaps are used, then measurement scheduling is simplified, but measurement efficiency deteriorates due to inability to account for varying UE capabilities and mobility states
Solution Approach 1:
The patent applies dynamics by transitioning from fixed measurement gap durations to dynamic, configurable durations. The base station determines appropriate measurement gap durations based on UE mobility states (e.g., stationary, pedestrian, vehicular, highway mobility) and adjusts the gap configuration accordingly. This allows the system to adapt measurement gap parameters to current operating conditions, improving measurement efficiency without excessive complexity.
Solution Approach 2:
The patent implements parameter changes by modifying measurement gap duration and periodicity based on UE capabilities and mobility states. Different parameter sets are configured for different scenarios (e.g., longer gaps for high mobility, shorter gaps for stationary UEs). The base station selects and applies appropriate parameter configurations from predefined sets, optimizing measurement performance for varying conditions.
2Reliability
If measurement gaps are configured for all UEs, then measurement coverage is improved, but communication opportunities during gaps deteriorate due to resource unavailability
Solution Approach 1:
The patent applies local quality by configuring measurement gaps selectively rather than uniformly for all UEs. The base station determines which UEs require measurement gaps based on their mobility states, service requirements, and current radio conditions. Only UEs that need measurements receive gap configurations, while others maintain continuous communication capability. This localized approach ensures measurement coverage where needed without sacrificing communication opportunities elsewhere.
Solution Approach 2:
The patent implements preliminary action by having the base station proactively determine UE mobility states and pre-configure appropriate measurement gap parameters before measurements are needed. The system evaluates UE conditions and prepares suitable gap configurations in advance, allowing UEs to perform measurements when necessary while minimizing impact on communication. This proactive configuration optimizes both measurement coverage and communication opportunities.
3Measurement precision
If longer measurement gap durations are used, then measurement precision is improved, but latency increases due to extended unavailability for communication
Solution Approach 1:
The patent applies dynamics by adjusting measurement gap duration based on real-time UE mobility states and measurement requirements. For stationary or low-mobility UEs, shorter gap durations are configured since fewer measurements are needed and channel conditions change slowly. For high-mobility UEs, longer gaps are used when necessary to complete accurate measurements, but only temporarily. This dynamic adjustment optimizes the trade-off between measurement precision and communication latency adaptively.
Solution Approach 2:
The patent implements partial action by configuring measurement gaps with durations and periodicities tailored to specific UE needs rather than using uniform, excessive gap lengths for all UEs. The base station determines the minimum necessary gap duration to achieve required measurement precision for each UE's specific conditions. This partial approach avoids unnecessary extended unavailability for communication while still achieving sufficient measurement accuracy for each scenario.
Data Source
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AI summary
In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus, e.g., a base station, maybe configured to obtain UE information of a UE. The apparatus may configure one or more parameters of one or more measurement gaps based on the UE information, and transmit, to the UE, measurement gap information on the one or more measurement gaps. The measurement gap information may include the one or more configured parameters. In another aspect of the disclosure, a UE maybe configured to transmit, to a base station, UE information of the UE. The UE may receive a measurement request from the base station in response to the UE information, where the measurement request includes configuration information for one or more measurement gaps based on the transmitted UE information. The UE may measure one or more reference signals during at least one measurement gap.