Cell Reselection Lists for Public and Non-Public Network Sharing
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Solution Overview
Problem
Conventional cell reselection technologies in wireless communication systems fail to set black and neighbor cell lists per operator, leading to issues in network sharing scenarios, particularly for public and private network sharing, causing confusion and inefficient cell reselection processes.
Innovation Solution
The proposed solution involves configuring and transmitting black and neighbor cell lists that are specific to different types of networks, such as public and non-public networks (NPN), using System Information Blocks (SIB) and Radio Resource Control (RRC) signaling, to ensure accurate cell reselection based on network type and ID, thereby resolving confusion and improving reselection efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional cell reselection technologies are used without operator-specific black and neighbor cell lists, then the system maintains simplicity in configuration, but network sharing scenarios experience confusion and inefficient cell reselection processes
Solution Approach 1:
The patent segments the cell reselection configuration by creating separate black cell lists and neighbor cell lists for different operators and network types. Each list is specifically configured for particular operators (e.g., operator1, operator2) and network types (e.g., public network, non-public network), allowing UE to selectively apply the appropriate list based on its configured operator and network type, thereby resolving confusion in network sharing scenarios while maintaining manageable configuration complexity through structured organization.
2Measurement precision
If operator-specific black and neighbor cell lists are configured for different network types, then cell reselection accuracy is enhanced, but the configuration and signaling overhead increases
Solution Approach 1:
The patent applies preliminary action by pre-configuring operator-specific black cell lists and neighbor cell lists in the network before UE performs cell reselection. The network nodes (gNBs) prepare these lists in advance, associating them with specific operators and network types, so that when UE needs to perform reselection, it can directly utilize the pre-prepared lists without real-time computation, thereby achieving high accuracy while managing signaling overhead through efficient pre-computation and storage.
3Reliability
If multiple black cell lists are transmitted for different operators and network types, then cell reselection confusion is reduced, but the information transmission volume increases
Solution Approach 1:
The patent implements dynamics by enabling UE to dynamically select and apply the appropriate black cell list and neighbor cell list based on its configured operator and the detected network type during cell reselection. Instead of statically transmitting all possible lists regardless of scenario, the system allows UE to adaptively choose the relevant list (e.g., public network list for public networks, non-public network list for non-public networks), thereby ensuring reliable cell reselection while minimizing unnecessary information transmission volume through conditional application.
Data Source
AI summary
Techniques are described for cell reselection technology. An example wireless communication method comprises transmitting, by a network node, one or more black cell lists to a communication node, where each black cell list describes a range of physical cell identifiers (PCI) of one or more network nodes that are prevented from being used by the communication node for reselection, and where each black cell list is associated with one or more network identifiers (IDs) of the one or more network nodes or an indication of a type of network that indicates a type of service provided by one network node.