Network Slice Grouping for Wireless Terminal Cell Reselection
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Solution Overview
Problem
Current network slicing technologies face challenges in efficiently selecting and managing resources within sliced networks, particularly in 5G wireless communications, where network slice groups and carrier frequencies need to be effectively configured for wireless terminals to optimize service provision.
Innovation Solution
The solution involves a wireless terminal and access node system that receives customized mapping configurations and network slice group indices, allowing the terminal to select an intended network slice and perform cell reselection based on associated carrier frequencies, thereby optimizing resource utilization within a public land mobile network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If network slicing is implemented to provide customized services, then service diversity and adaptability are improved, but network complexity and resource management difficulty increase
Solution Approach 1:
The network is segmented into multiple independent network slices, each tailored for specific services (e.g., enhanced mobile broadband, ultra-reliable low latency communication, massive machine type communication). Each slice operates independently with dedicated resources, enabling service diversity while managing complexity through modular isolation.
Solution Approach 2:
The radio access network is designed to support multiple network slices simultaneously on the same physical infrastructure, allowing a single network to provide diverse services (enhanced mobile broadband, ultra-reliable low latency communication, massive machine type communication) through logical segmentation rather than requiring separate physical networks for each service type.
2Productivity
If multiple network slices are supported on the same infrastructure, then resource utilization efficiency is improved, but resource management complexity increases
Solution Approach 1:
Different resource allocation strategies and quality of service parameters are applied locally to each network slice based on its specific requirements. For example, enhanced mobile broadband slices receive resources optimized for high throughput, while ultra-reliable low latency communication slices receive resources configured for low latency and high reliability, allowing efficient resource utilization tailored to each slice's needs.
Solution Approach 2:
Network slices are pre-configured with dedicated resources and parameters before service deployment. The system establishes resource allocations, quality of service profiles, and slice-specific configurations in advance, enabling efficient resource utilization without requiring complex real-time management decisions during operation.
3Measurement precision
If customized mapping configuration is provided to wireless terminals, then service precision and network performance are improved, but signaling overhead and configuration complexity increase
Solution Approach 1:
The system configures network slice groups using parameter sets that define radio resource management behavior, frequency selection criteria, and cell reselection parameters specific to each slice group. By optimizing and consolidating these parameters, the system achieves precise service control while minimizing the signaling overhead required to transmit configuration information to wireless terminals.
Data Source
AI summary
A wireless terminal is served by a public land mobile network (PLMN). The wireless terminal comprises receiver circuitry and processor circuitry. The receiver circuitry is configured to receive a first message and a second message. The first message includes a customized mapping configuration which is specific to the wireless terminal and which configures the one or more network slice groups, the one or more of the network slice groups indicating grouping of one or more network slices, the one or more of the network slices providing a designated service(s) within the PLMN, the one or more of the network slice groups being identified by a group index(ies). The second message is dedicated to the wireless terminal and comprises one or more network slice group indices, the one or more of the network slice group indices being associated with a list(s) of one or more carrier frequencies. The processor circuitry configured to select an intended network slice(s); identify, based on the customized mapping configuration, a group index of a network slice group for the intended network slice(s); perform, based on the list of the one or more of the carrier frequencies associated with the group index of the network slice group for the intended network slice(s), a cell reselection procedure.