User Device Slice-Group Priorities for Cell Reselection and Random Access
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently controlling network slice-specific cell reselection and random access procedures to meet varying customer requirements for latency, reliability, and throughput, particularly in 5G networks.
Innovation Solution
A method and apparatus for controlling user devices to perform cell reselection and random-access procedures based on network slice group priorities, using configuration messages to enable or disable these procedures selectively, and a network node to send these messages to user equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If network slice-specific cell reselection and random access procedures are controlled based on priority, then network reliability and service quality are improved, but device complexity and control mechanism complexity increase
Solution Approach 1:
The patent segments the network slicing functionality by introducing separate configuration parameters for cell reselection (nsag-CellResel) and random access (nsag-RandomAccess) procedures. Each procedure can be independently enabled or disabled based on network slice group priorities, allowing granular control over different access mechanisms without affecting the entire system.
Solution Approach 2:
The patent implements dynamic control mechanisms where the network can adjust the enabling/disabling of slice-specific procedures through RRC configuration messages. The user equipment dynamically adapts its behavior based on received configuration parameters, allowing the system to optimize performance under varying network conditions while maintaining manageable complexity through standardized procedures.
2Adaptability or versatility
If slice-based cell reselection and random access are enabled, then service quality for different customers is improved, but signaling overhead and configuration complexity increase
Solution Approach 1:
The patent merges the control of cell reselection and random access configurations into a unified RRC configuration message structure. By combining multiple control functions into a single signaling mechanism, the patent reduces the number of separate messages required while maintaining the ability to independently configure each procedure based on network slice group priorities.
Solution Approach 2:
The patent creates universal configuration parameters (nsag-CellResel and nsag-RandomAccess) that can be applied across different network slice groups and service types. These multi-functional parameters enable the same configuration mechanism to serve multiple purposes: controlling cell reselection, managing random access, and adapting to different service quality requirements without requiring separate specialized configurations.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Techniques for controlling the behavior of a user device toward a cell in a sliced network are provided. For example, a method of controlling a user device is disclosed. The method comprises: receiving, by the user device, a configuration message from a network node, the configuration message indicating whether to perform a cell reselection procedure and/or a random-access procedure taking into account priority of one or more network slice groups; and performing, by the user device, the cell reselection procedure and/or the random-access procedure taking into account priority of one or more network slice groups in accordance with the configuration message.