Measurement Gap Repetition Patterns for Inter-Frequency Offloading
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Solution Overview
Problem
Current wireless networks face inefficiencies in power consumption and data rate degradation due to UE performing unnecessary measurements across inter-frequency layers, as they can only configure one measurement gap repetition pattern per UE, leading to increased power consumption and delayed neighboring cell discovery.
Innovation Solution
Implementing multiple measurement gap repetition patterns per UE, allowing the network to assign different patterns based on frequency layers, purposes, and proximity, with options for skipping measurements and non-colliding gaps, optimizing settings for each frequency layer and use case.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If a single measurement gap repetition pattern is configured per UE, then the network configuration is simple, but the UE performs unnecessary measurements leading to increased power consumption
Solution Approach 1:
The patent segments the measurement gap repetition pattern configuration by introducing multiple patterns (first pattern for intra-frequency, second pattern for inter-frequency) that can be selectively applied to different frequency layers and cell types. This allows the network to configure measurements more precisely rather than using a single uniform pattern, thereby reducing unnecessary measurements and UE power consumption while managing complexity through structured configuration.
Solution Approach 2:
The patent introduces dynamic switching between different measurement gap repetition patterns based on network conditions, cell types, and frequency layers. The network can dynamically select which pattern to apply (first or second pattern) and dynamically adjust measurement configurations, enabling adaptive power management that reduces UE power consumption while maintaining measurement accuracy when needed.
2Measurement precision
If measurements are performed frequently across all frequency layers, then measurement accuracy is maintained, but data rate degrades due to measurement gaps interrupting transmissions
Solution Approach 1:
The patent applies different measurement gap repetition patterns to different frequency layers and cell types based on their specific requirements. The first pattern is applied to intra-frequency measurements where continuous monitoring may be needed, while the second pattern is applied to inter-frequency measurements where less frequent monitoring suffices. This localized differentiation maintains measurement precision where critical while minimizing interruptions to data transmissions on other frequencies, thereby preserving data rate.
Solution Approach 2:
The patent changes the measurement gap repetition period parameter differently for different frequency layers and cell types. By adjusting the repetition period (making it longer for inter-frequency measurements compared to intra-frequency), the patent maintains sufficient measurement accuracy while reducing the frequency of measurement gaps, thus minimizing impact on data rate and improving overall system productivity.
3Loss of time
If a single measurement gap repetition pattern is used for all cell types, then configuration is simplified, but neighboring cell discovery is delayed in heterogeneous networks
Solution Approach 1:
The patent segments the measurement configuration by introducing separate measurement gap repetition patterns for different cell types (macro-cells, pico-cells, femto-cells) and frequency layers. The first pattern handles intra-frequency measurements while the second pattern handles inter-frequency measurements to offloading cells. This segmentation enables faster discovery of neighboring cells in heterogeneous networks by applying appropriate measurement frequencies for each cell type, reducing overall discovery time while managing configuration complexity through structured patterns.
Solution Approach 2:
The patent enables preliminary configuration of multiple measurement gap repetition patterns before actual measurements begin. The network pre-configures both the first and second patterns with appropriate parameters for different cell types and frequency layers, so that when measurement is needed, the UE can immediately switch to the appropriate pre-configured pattern. This preliminary action reduces neighboring cell discovery time by avoiding on-the-fly configuration while managing complexity through pre-planned pattern structures.
Data Source
AI summary
An embodiment for user equipment that receives a plurality of measurement gap repetition patterns from a network. Each measurement gap repetition pattern may be assigned to a different frequency of the network. The plurality of measurement gap repetition patterns may include skipping measurement patterns. Further embodiments may include the user equipment receiving a repetition period in a measurement object frame or receiving a plurality of measurement gap repetition patterns in which the measurement gaps are non-colliding with measurement gaps of other repetition patterns assigned to the user equipment.