Slice-Group Priority Control for User Device Reselection and Random Access
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Solution Overview
Problem
Existing wireless communication systems face challenges in controlling user device behavior for network slice-specific cell reselection and random access procedures, which are crucial for ensuring reliable connections and data traffic in networks supporting diverse services with varying requirements.
Innovation Solution
A method and apparatus for controlling user devices to perform cell reselection and random-access procedures based on priority of network slice groups, using configuration messages that indicate whether to prioritize these procedures, enabling selective enablement or disablement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If network slice-specific cell reselection and random access procedures are implemented to support diverse service requirements, then service quality and reliability are improved, but device complexity and control difficulty increase
Solution Approach 1:
The patent segments the cell reselection and random access procedures by network slice groups. Different network slice groups (e.g., enhanced Mobile Broadband, Ultra-Reliable Low Latency Communication, Massive Internet of Things) are assigned different priority levels and access parameters. This segmentation allows the system to provide slice-specific control while managing complexity through structured categorization of services and their corresponding access procedures.
2Productivity
If selective enablement or disablement of cell reselection and random-access procedures is implemented based on network slice priority, then network performance is optimized, but device complexity increases
Solution Approach 1:
The patent implements dynamic control mechanisms where the network can selectively enable or disable cell reselection and random access procedures based on current network conditions and slice priorities. The network node sends configuration messages that dynamically adjust access parameters for different network slice groups, allowing the system to adapt to changing requirements without requiring complex permanent configurations in the user device.
Solution Approach 2:
The patent changes key parameters such as priority values, access restrictions, and procedure enablement flags based on network slice group identifiers. By modifying these parameters dynamically according to slice requirements and network conditions, the system optimizes network performance while keeping the control mechanism manageable through parameter-based configuration rather than structural complexity.
Data Source
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.