SSB and CSI-RS Gap Coordination for RRM Measurements
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Solution Overview
Problem
Existing radio networks face challenges in managing measurement gaps for both SSB and CSI-RS based measurements, leading to uncertainties and inconsistencies in data interruption due to overlapping gap durations and configurations.
Innovation Solution
The network configures separate measurement gaps for SSB and CSI-RS with flexible timing, allowing for union or selection approaches to determine the duration and type of gaps based on overlapping occasions, optimizing data opportunity and minimizing interruption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If separate gap configurations are used for SSB and CSI-RS measurements, then measurement flexibility and precision are improved, but uncertainty arises when gaps overlap in time
Solution Approach 1:
The patent applies dynamics by making the gap configuration adaptable and changeable based on measurement needs. The network can dynamically configure separate gaps for SSB and CSI-RS measurements, and the UE can dynamically select which gap to apply based on current measurement requirements, resolving the uncertainty when gaps overlap
Solution Approach 2:
The patent segments the measurement gap configuration into separate configurations for SSB measurements and CSI-RS measurements. Each gap configuration is independently defined with its own duration, period, and offset, allowing precise control over each measurement type while maintaining the ability to handle overlaps through defined selection rules
2Device complexity
If a single gap configuration is used for both SSB and CSI-RS measurements, then device complexity is reduced, but the network cannot optimize data transmission interruption
Solution Approach 1:
The system transitions from a static single gap configuration to a dynamic multi-gap configuration where the network can adjust gap parameters based on measurement requirements. The UE dynamically selects which gap configuration to apply, optimizing data transmission by using the most appropriate gap for each measurement scenario
Solution Approach 2:
The patent applies local quality by configuring different gap parameters (duration, period, offset) specifically tailored to each measurement type's requirements. SSB measurements receive gap configurations optimized for their timing characteristics, while CSI-RS measurements receive configurations optimized for their specific needs, rather than using a one-size-fits-all approach
3Adaptability or versatility
If separate measurement gaps are configured for SSB and CSI-RS, then measurement adaptability is improved, but the same gap duration is used even when RS durations differ
Solution Approach 1:
The patent implements local quality by configuring gap durations that match the specific requirements of each reference signal type. Since SSB and CSI-RS have different temporal characteristics, separate gap configurations allow each measurement to use a gap duration appropriately matched to its needs, preventing unnecessary data interruption
Solution Approach 2:
The system changes gap parameters (duration, period, offset) based on the specific measurement requirements. The network can configure different parameter sets for SSB and CSI-RS measurements, and the UE selects the appropriate parameters based on current measurement needs, optimizing the balance between measurement quality and data transmission continuity
Data Source
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AI summary
A method includes: receiving, at a user equipment, a first information of a first gap for a first reference signal to be measured and a second information of a second gap for a second reference signal to be measured, wherein the first gap and the second gap overlap at least partially; and, determining at least one of: a first duration of a gap length based on a union of the first gap and the second gap, and a second duration of a gap length based on a selection of the first gap or the second gap corresponding to one of the first reference signal and the second reference signal.