Mobile-WLAN Slice Integration Using IPSEC-PDU Session Mapping
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing 5G systems do not provide network slice services via wireless LANs such as Wi-Fi, as they lack methods to integrate wireless LANs as Trusted Non-3GPP access networks, leading to disconnection and inability to manage the section between WLAN terminals and the 5G core network.
Innovation Solution
A mobile-wireless LAN integrated system with IMW-AP, IMW-GF, and IMW-UE functions that establish IPSEC tunnels and PDU sessions, enabling network slicing by matching application packet sessions one-to-one with PDU sessions, allowing 5G systems to function as backhaul for WLAN APs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If 5G systems use common network resources shared by all subscribers, then network resource utilization is improved, but differentiated service conditions for specific applications cannot be guaranteed
Solution Approach 1:
The patent implements network slicing that divides the common 5G network into multiple virtual closed networks (slices), each dedicated to specific vertical applications. This segmentation allows different service conditions to be guaranteed for different applications while sharing the same physical network infrastructure, resolving the contradiction between resource utilization and service differentiation.
Solution Approach 2:
The patent applies local quality by allocating specific network resources and performance parameters to each network slice based on the requirements of individual vertical applications. Each slice has customized quality of service (QoS) parameters tailored to its specific application needs, enabling differentiated service conditions while maintaining overall network efficiency.
2Reliability
If 5G systems provide network slice services, then differentiated service conditions are guaranteed, but integration with wireless LANs such as Wi-Fi is not supported
Solution Approach 1:
The patent creates a mobile-WLAN integrated system that provides network slice services through both 5G mobile networks and wireless LANs. The system includes a mobile network slice management function and a WLAN network slice management function that work together to deliver differentiated service conditions across multiple access types, achieving universality in service delivery.
Solution Approach 2:
The patent introduces a WLAN network slice management function as an intermediary that bridges the gap between 5G core network slicing and WLAN access. This intermediary component enables WLANs to participate in network slice services by translating and managing slice requirements specific to WLAN environments, thus facilitating integration while maintaining service differentiation.
3Adaptability or versatility
If wireless LANs are integrated as Trusted Non-3GPP access networks, then adaptability is improved, but system complexity increases due to IPSEC tunnel establishment and session matching requirements
Solution Approach 1:
The patent implements self-service mechanisms where the WLAN network slice management function automatically performs IPSEC tunnel establishment and PDU session matching without requiring complex manual configuration. The system autonomously manages the integration between WLAN access and 5G network slicing, reducing operational complexity while maintaining adaptability.
Data Source
AI summary
According to an embodiment of the present invention, a mobile-wireless local area network (LAN) integrated system includes: an IMW-AP function (Integrated Mobile WLAN AP function) configured to perform wireless LAN-based access with a user terminal and to deliver an internet protocol security (IPSEC) tunnel of an application packet session to the user terminal; an IMW-GF function (Integrated Mobile WLAN Gateway function) configured to provide an IPSEC tunnel for each application packet session with the user terminal and to match each application packet session with a packet data unit (PDU) session in a one-to-one manner; and an IMW-UE function (Integrated Mobile WLAN UE function) configured to connect to a base station of a mobile network via an air interface and to establish the PDU session with the mobile network.