Wireless Cell Selection Using Multi-Criteria Prioritization
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Solution Overview
Problem
Current 5G cellular network implementations fail to ensure the best possible cell configuration for User Equipment (UE) during Dual Connectivity (DC)/Carrier Aggregation (CA) setup, leading to suboptimal resource utilization and user experience due to reliance solely on signal level for secondary cell selection, ignoring other beneficial features like high power user equipment (HPUE) and relaxed measurement support.
Innovation Solution
A method for the UE to prioritize secondary cell selection based on signal strength and additional features such as bandwidth support, HPUE support, and relaxed measurement support, allowing for maximum bandwidth, better coverage, and power savings during DC/CA configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the UE selects secondary cell based solely on signal level for fast DC/CA setup, then the setup speed is improved, but the resource utilization and user experience deteriorate due to suboptimal cell configuration
Solution Approach 1:
The patent changes the selection parameters from solely signal level to a multi-criteria evaluation including signal level, bandwidth support, HPUE support, and relaxed measurement support. This allows the UE to identify cells that optimize both setup speed and data throughput by considering multiple parameters simultaneously rather than relying on a single metric.
Solution Approach 2:
The patent adds new dimensions to the cell selection process by introducing additional criteria beyond signal level. Instead of a one-dimensional signal strength evaluation, the system now considers multiple dimensions including bandwidth capabilities, HPUE support, and measurement relaxation features, enabling more comprehensive cell optimization.
2Productivity
If the UE considers multiple features like bandwidth support, HPUE support, and relaxed measurement support for secondary cell selection, then the data throughput and coverage are improved, but the cell selection complexity increases
Solution Approach 1:
The patent applies preliminary action by having the UE evaluate and prioritize candidate cells based on multiple criteria before final selection. The UE performs preliminary assessments of bandwidth support, HPUE support, and relaxed measurement support for each candidate cell, ranking them according to how well they meet the desired criteria before committing to a selection, thereby simplifying the decision-making process.
Solution Approach 2:
The patent applies local quality by allowing different candidate cells to be evaluated based on their specific local characteristics and capabilities. Each cell is assessed according to its own bandwidth support, HPUE support, and measurement relaxation features, enabling the UE to select the cell with the most appropriate local qualities for its specific needs rather than applying a uniform selection criterion.
3Adaptability or versatility
If the network configures multiple candidate cells with different features, then the adaptability and user experience are improved, but the configuration and management complexity increases
Solution Approach 1:
The patent utilizes parameter changes by introducing new configuration parameters that describe specific cell capabilities such as bandwidth support, HPUE support, and relaxed measurement support. These parameters enable the network to configure multiple candidate cells with differentiated features, allowing the UE to adapt its selection based on the specific parameter values of each candidate cell.
Solution Approach 2:
The patent applies segmentation by dividing the cell configuration into distinct feature categories (bandwidth support, HPUE support, relaxed measurement support). Each candidate cell is characterized by a set of segmented features, allowing the UE to evaluate and select cells based on specific feature combinations that match its requirements, thereby managing complexity through structured segmentation.
Data Source
AI summary
An example provides a method for selecting a cell by a user equipment (UE) in a wireless communication system, and the method may include receiving first configuration information for early measurement to be performed while the UE is in an idle state or an inactive state. The method may include identifying, based on the first configuration information, a plurality of candidate cells for the early measurement among neighboring cells of the UE. The method may include receiving, from each candidate cell of the plurality of candidate cells, second configuration information including at least one of bandwidth support information, high power user equipment (HPUE) support information or relaxed measurement support information. And the method may include selecting a cell by prioritizing the plurality of candidate cells, based on a signal strength of said each candidate cell and the second configuration information.