Core Node RAN Slice Allocation for Service-Specific IoT Resources
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Solution Overview
Problem
Existing methods do not provide a clear mechanism for allocating radio resources of RAN Slices to appropriate radio terminals in IoT services, leading to inefficiencies in managing large numbers of IoT terminals.
Innovation Solution
A core node determines radio resources based on the service provided to a radio terminal and transmits resource identification information to a base station managing RAN Slices, which then allocates these resources appropriately.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If radio resources are divided into multiple RAN Slices and managed separately for different services, then resource allocation efficiency for specific services is improved, but the complexity of resource management increases
Solution Approach 1:
The patent divides radio resources into multiple RAN Slices, where each slice is dedicated to specific services or service groups. This segmentation allows independent management and allocation of resources for different services (e.g., IoT, enhanced mobile broadband, ultra-reliable low-latency communications), improving allocation efficiency while maintaining manageable complexity through structured organization.
Solution Approach 2:
The patent introduces a core network entity (such as a network slice management function) that acts as an intermediary between the radio access network and the core network. This intermediary manages the mapping between RAN Slices and core network slices, handling the complexity of resource management centrally while allowing base stations to focus on radio resource allocation within their assigned slices.
2Reliability
If RAN Slices are allocated to specific services, then service-specific resource guarantees are improved, but the flexibility to allocate resources dynamically decreases
Solution Approach 1:
The patent implements dynamic resource allocation within RAN Slices through multiple mechanisms: (1) Time-varying resource allocation where resources can be reassigned based on current service demands, (2) Priority-based scheduling that can adjust priorities of different services over time, and (3) Overlapping slice configurations that allow resources to be shared between slices under certain conditions. This maintains service-specific guarantees while enabling adaptive resource management.
Solution Approach 2:
The patent allows modification of RAN Slice parameters such as resource blocks, bandwidth parts, and quality of service parameters dynamically. The network can adjust these parameters based on service requirements, traffic patterns, and network conditions, enabling both reliable service-specific allocation and flexible adaptation to changing demands.
3Quantity of substance
If a large number of IoT terminals are accommodated in the network, then network capacity for IoT services is improved, but the complexity of terminal management increases
Solution Approach 1:
The patent creates a universal RAN Slice framework that can accommodate multiple types of IoT terminals and services through a common management structure. The same RAN Slice management mechanisms serve diverse IoT applications (e.g., massive machine-type communications, critical machine-type communications), reducing management complexity by providing a unified approach rather than separate management for each terminal type.
Solution Approach 2:
The patent implements self-service mechanisms for IoT terminals including autonomous slice selection based on service requirements, self-configuration of communication parameters, and automated resource allocation requests. This reduces management complexity by enabling terminals to independently handle their own resource needs while the network provides the necessary framework and policies.
Data Source
AI summary
The present disclosure aims to provide a core node capable of appropriately allocating a radio resource of a RAN Slice allocated for a specific service to a radio terminal that uses this specific service. A core node (10) according to the present disclosure includes: a determination unit (14) configured to determine a radio resource to be allocated in accordance with a service provided for a radio terminal (30); and a communication unit (12) configured to transmit resource identification information indicating the radio resource determined in the determination unit (14) to a base station (20) that manages a plurality of radio resources for each RAN Slice associated with a service.