RAN Slice Priority Forwarding for 5G Resource Management
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Solution Overview
Problem
In the 5G Core Network, resource separation is performed in units of slices, making it impossible to continuously perform priority-based processes on the RAN side, such as guaranteeing resource amounts, which are managed on the core network side.
Innovation Solution
A communication connection device that allocates resources to slice networks, including a storage unit for priority management and a forwarding unit to transmit data based on priorities stored for each communication flow and slice network, enabling priority forwarding processes across both communication flows and slice networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If resource separation is performed in units of slices on the core network side, then resource management capability is improved, but the ability to perform priority-based processes on the RAN side deteriorates
Solution Approach 1:
The invention segments the priority management function into two independent components: slice-level priority management (handled by the storage unit storing slice priority information) and flow-level priority management (handled by the forwarding unit using QoS profiles). This segmentation allows both slice-based resource separation and flow-based priority processes to operate independently and simultaneously, resolving the contradiction between improved resource management capability and maintained priority-based process capability on the RAN side.
2Reliability
If priority forwarding is performed only in units of communication flows, then flow-level QoS is improved, but slice-level resource guarantee capability deteriorates
Solution Approach 1:
The invention implements a nested priority management structure where slice-level priority information (stored in the storage unit) contains multiple communication flows, and each flow has its own QoS profile with priority settings. The forwarding unit performs nested priority processing: first determining the priority of the source slice using the stored slice priority information, then determining the priority of the specific communication flow using the QoS profile. This nested structure enables simultaneous operation at both slice-level and flow-level, improving flow-level QoS while maintaining slice-level resource guarantee capability.
Data Source
AI summary
An object is to provide a communication connection device and a communication connection method enabling priority forwarding processes in units of slice networks in addition to in units of communication flows.The RAN 100 is a communication connection device allocated to one or a plurality of slice networks each of which is a virtual network. The RAN 100 includes the storage unit 102 storing priority of performing a forwarding process for each communication flow representing a data forwarding unit and slice network, and the forwarding processing unit 104 forwarding data transmitted from the core network to the user terminal 50 according to the priority stored in the storage unit 102.