Slice-Aware Cell Selection for Low-Latency UE Camping
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing mobile communication networks face challenges in efficiently utilizing slice information for cell selection, measurement, and reselection, leading to increased latency and power consumption due to the need for UEs to acquire SIBs of non-selected cells.
Innovation Solution
A method and apparatus that utilize slice information for performing cell selection, measurement, and reselection, enabling UEs to prioritize frequencies based on supported network slices, thereby optimizing cell camping on target cells capable of providing desired services.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If UEs acquire SIBs of non-selected cells for cell selection and reselection, then cell selection accuracy is improved, but power consumption and latency increase
Solution Approach 1:
The patent extracts and utilizes slice information from selected cells to perform cell selection and reselection without acquiring SIBs of non-selected cells. By taking out the essential slice information needed for decision-making and excluding unnecessary SIB acquisition from non-selected cells, the patent reduces power consumption while maintaining cell selection accuracy.
Solution Approach 2:
The patent performs preliminary filtering of cells based on slice information before full SIB acquisition. By pre-identifying candidate cells that support required network slices using available slice information, the patent avoids unnecessary SIB acquisitions and reduces power consumption while ensuring accurate cell selection.
2Measurement precision
If UEs acquire SIBs of non-selected cells for cell selection and reselection, then cell selection accuracy is improved, but latency increases
Solution Approach 1:
The patent extracts only the necessary slice information from selected cells to make cell selection decisions, eliminating the time-consuming SIB acquisition process for non-selected cells. This extraction approach maintains cell selection accuracy by focusing on relevant slice information while significantly reducing latency.
Solution Approach 2:
The patent skips the SIB acquisition step for non-selected cells by using available slice information directly for cell selection and reselection decisions. This skipping of unnecessary steps reduces latency while maintaining selection accuracy through intelligent use of slice information.
3Productivity
If frequency priority mapping is provided for each slice, then cell reselection efficiency is improved, but device complexity increases
Solution Approach 1:
The patent implements a universal frequency priority mapping mechanism that works across multiple slices and cell selection scenarios. By creating a multi-functional framework that handles different slice types and reselection situations through a common approach, the patent improves cell reselection efficiency without proportionally increasing device complexity.
Data Source
Figure 1
Figure 2~4
Figure 5~8
AI summary
The present application relates to the field of mobile communications, and discloses a method, apparatus, and device for using slice information, and a storage medium. The method comprises: executing at least one of a cell selection process, a cell measurement process, a cell search process, and a cell reselection process according to slice information. When at least one of the cell selection process, the cell measurement process, the cell search process, and the cell reselection process is executed, the slice information can be used to execute a more reasonable cell selection process, cell measurement process, cell search process, and cell reselection process in the case of different slice information, such that a UE is more likely to camp on a target cell that can provide a desired slice service.