Inter Frequency Measurement Control for UE Processor Load
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Solution Overview
Problem
User Equipment (UE) processors face overload when performing inter frequency measurements across multiple cells and frequencies, limiting their capacity to handle more than two non-used frequencies without increasing processing load, which is insufficient for networks with microcells using different frequencies for load sharing and coverage.
Innovation Solution
Allowing different measurement performance requirements for different frequencies and cells by using at least two separate neighbour cell lists, where one list is measured with current performance requirements for coverage and another with looser requirements for load sharing, enabling UE to perform inter frequency measurements without processor overload.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the UE measures more than two non-used frequencies to support heterogeneous networks with microcells, then the network coverage and load sharing capability are improved, but the processor capacity is exceeded and measurement accuracy deteriorates
Solution Approach 1:
The patent segments the measurement process by dividing neighbor cells into two distinct groups: a first group measured according to first measurement performance requirements and a second group measured according to second measurement performance requirements. This segmentation allows the UE to handle more cells overall while maintaining measurement accuracy for critical cells (first group) and using relaxed requirements for less critical cells (second group), thus resolving the contradiction between measuring more frequencies and maintaining measurement precision.
2Productivity
If the UE performs measurements on more cells and frequencies, then the productivity of frequency measurement is improved, but the processor load increases beyond capacity
Solution Approach 1:
The patent applies local quality by assigning different measurement performance requirements to different groups of cells based on their importance and characteristics. The first group of cells (likely covering cells) receives stricter measurement requirements, while the second group of cells (capacity cells) receives more relaxed requirements. This allows the UE to increase overall measurement productivity by measuring more cells without overloading the processor, as computational resources are allocated differently based on local needs.
3Device complexity
If the UE uses a single measurement performance requirement for all cells, then the device complexity is reduced, but the adaptability to different network scenarios is limited
Solution Approach 1:
The patent introduces dynamics by making the measurement performance requirements flexible and scenario-dependent. Instead of a static single requirement for all cells, the system dynamically assigns different measurement performance requirements (first and second sets) to different groups of cells based on network conditions, cell importance, and measurement purposes. This dynamic approach enhances adaptability to heterogeneous network scenarios while keeping device complexity manageable through structured classification.
Data Source
AI summary
A User Equipment (UE) and a mobile communications network node perform or handle inter frequency measurements. The technology prevents overloading the UE with frequency measurement processing by allowing different requirements for measurements, i.e., measurement performance requirements on different frequencies, i.e., cells. When ordering the UE to perform inter frequency measurements, two or more separate neighbor cell lists may be used. This allows a UE having a certain processor capacity to perform measurement control for more cells and frequencies, i.e., measurements on more than two non-used frequencies, without increasing the processing load of the UE.