UE Measurement Gap Prioritization for Concurrent L1 and L3 Measurements
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Solution Overview
Problem
Existing wireless communication systems face inefficiencies in performing channel measurements due to the lack of techniques for defining concurrent measurement gaps for layer one (L1) inter-frequency measurements, leading to decreased efficiency and accuracy in mobility procedures.
Innovation Solution
The implementation of concurrent measurement gaps for L1 channel measurements, where a user equipment (UE) transmits a capability message indicating support for such gaps, selects measurement gaps based on scheduling collisions, and performs channel measurements using prioritization between overlapping gaps, thereby improving measurement efficiency and accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If measurement gaps are configured for L1 and L3 measurements, then measurement coverage is improved, but scheduling conflicts occur when gaps overlap in time
Solution Approach 1:
The patent segments the measurement gap configuration by introducing separate measurement gap patterns for L1 measurements (first measurement gap) and L3 measurements (second measurement gap). This segmentation allows independent configuration and management of measurement gaps for different measurement types, resolving scheduling conflicts by providing distinct time resources for each measurement layer.
2Productivity
If concurrent measurement gaps are configured for L1 measurements, then measurement efficiency is improved, but device complexity increases due to additional configuration management
Solution Approach 1:
The patent implements multi-functionality by enabling the UE to simultaneously handle multiple measurement gap configurations (first measurement gap for L1, second measurement gap for L3) through a unified measurement capability indication mechanism. The network can configure both gap types concurrently, and the UE manages them through standardized reporting procedures, achieving efficient concurrent measurements without proportionally increasing complexity.
3Speed
If measurement gaps are extended to allow concurrent L1 and L3 measurements, then mobility procedure speed is improved, but timing synchronization becomes more difficult
Solution Approach 1:
The patent applies preliminary action by having the UE indicate its measurement capability (including support for concurrent measurement gaps) before the network configures actual measurement parameters. The network uses this pre-indicated capability to appropriately configure the first and second measurement gaps, ensuring proper timing alignment is established in advance, thereby enabling faster mobility procedures without sacrificing synchronization accuracy.
Data Source
AI summary
Methods, systems, and devices for wireless communication are described. To switch between candidate serving cells, a user equipment (UE) may perform layer one (L1) or layer three (L3) channel measurements associated with the serving cells. If the serving cells operate in different frequencies, the UE may perform the channel measurements in concurrent measurement gaps. The UE may select a measurement gap for the channel measurements based on a scheduling conflict between multiple measurement gaps. Alternatively, a UE may receive signals identifying a set of channel measurements and indicating at least a measurement gap associated with each of an L1 measurement and a second L1 and/or an L3 measurement. The UE may select a measurement according to a prioritization between the measurement gaps and an overlap in time between the measurement gaps. The UE may perform the set of channel measurements based on the first or second measurement gap.