Measurement Gap Sharing for L1 and L3 Wireless Measurements
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Solution Overview
Problem
Current measurement gap sharing solutions in wireless communication networks are limited to intra-frequency L3 measurements and inter-frequency/inter-RAT L3 scenarios, failing to address layer 1 (L1) measurements for serving and non-serving cells, and do not effectively split L1 measurement gaps among different operations such as RLM, BFD, and CBD.
Innovation Solution
Enhanced measurement gap sharing techniques that enable L1 and L3 measurements for serving and non-serving cells, including intra-frequency and inter-frequency/inter-RAT scenarios, with detailed configurations for L1 operations like RLM, BFD, and CBD, using multilevel measurement gap sharing schemes and explicit gap allocations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If measurement gap sharing is implemented for L3 measurements only, then measurement gap configuration is simplified, but measurement capability is limited and cannot support L1 measurements across serving and non-serving cells
Solution Approach 1:
The patent segments measurement gap sharing into two distinct levels: L1 measurement gap sharing for physical layer operations (serving cell RLM, non-serving cell RLM, beam failure detection) and L3 measurement gap sharing for higher layer measurements (intra-frequency, inter-frequency, inter-RAT). This segmentation allows each level to have optimized gap configurations tailored to its specific measurement requirements, thereby enhancing overall adaptability while managing complexity through structured organization.
Solution Approach 2:
The patent introduces a new dimension to measurement gap sharing by adding L1 measurement support to the existing L3 framework. This creates a multi-layered measurement gap architecture where L1 and L3 measurements can coexist and be independently configured, transforming the single-dimension L3-only approach into a two-dimensional L1-L3 integrated system, thereby significantly expanding measurement versatility.
2Measurement precision
If separate measurement gaps are allocated for L1 and L3 measurements, then measurement precision is improved, but resource utilization efficiency deteriorates due to gap overlap and redundancy
Solution Approach 1:
The patent merges L1 and L3 measurement gap operations by allowing higher layer RRC configurations to override and consolidate physical layer measurement gap requirements. When L3 measurements are configured, they can absorb and replace L1 measurement gap usage, eliminating redundant gap allocations. This merging approach maintains measurement precision for both L1 and L3 operations while significantly improving resource utilization by removing gap overlap and redundancy.
Solution Approach 2:
The patent creates a universal measurement gap configuration framework where a single RRC-configured measurement gap can serve multiple purposes: L1 serving cell RLM, L1 non-serving cell RLM, L1 beam failure detection, L3 intra-frequency measurements, L3 inter-frequency measurements, and L3 inter-RAT measurements. This multi-functional gap allocation eliminates the need for separate dedicated gaps for each measurement type, thereby maintaining measurement precision while dramatically improving resource utilization efficiency.
3Adaptability or versatility
If measurement gap sharing is extended to include L1 operations and inter-frequency/inter-RAT scenarios, then measurement versatility is enhanced, but configuration complexity increases beyond current L3-only solutions
Solution Approach 1:
The patent implements dynamic measurement gap configuration where RRC layer parameters can flexibly override and adapt physical layer measurement gap settings based on current network conditions and measurement requirements. The RRC configuration can dynamically adjust gap patterns, timing, and duration to accommodate L1 operations (serving cell RLM, non-serving cell RLM, beam failure detection) alongside L3 measurements (intra-frequency, inter-frequency, inter-RAT). This dynamic approach enables the system to handle diverse measurement scenarios with a single unified configuration mechanism, enhancing versatility while managing complexity through adaptive rather than static gap allocation.
Data Source
AI summary
The techniques described herein provide enhanced measurement gap sharing solutions that enable measurement gap sharing for layer 1 (L1) measurements for serving and non-serving cells, and for layer 3 (L3) measurements for intra-frequency measurements and inter-frequency/inter-radio access technology (RAT) measurements. Also provided are solutions for measurement gap sharing among intra-frequency L1 and L3 measurements and inter-frequency L1 and L3 measurements. Measurement gap patterns for L1 and L3 measurements are also provided, as well as solutions for further splitting L1 measurement gap sharing among different types of L1 operations.