AMF Group Session Paging for Multi-Device Service Requests
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Solution Overview
Problem
Existing 5G systems face challenges in efficiently managing network slicing and user plane connectivity, particularly in handling multiple access types and ensuring seamless service continuity across different network slices and data networks.
Innovation Solution
The implementation of enhanced 5G core network functionalities, including network functions such as AMF, SMF, UPF, and PCF, which support unified policy frameworks, network slicing, and edge computing to manage network resources and ensure efficient traffic steering and QoS management across diverse access networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If network slicing and multiple access types are implemented in 5G systems, then service versatility and adaptability are improved, but network complexity and difficulty of management increase
Solution Approach 1:
The patent applies segmentation by dividing the network into multiple independent network slices, each capable of serving different service types (e.g., eMBB, uRLLC, mMTC) with dedicated resources and configurations. This allows the network to handle diverse services simultaneously while maintaining manageable complexity within each slice through independent resource management.
Solution Approach 2:
The patent implements universality through a unified 5G core network architecture that supports multiple access types (5G NR, LTE, Wi-Fi) and multiple service types through a common framework. The core network functions can serve different slices and access types using the same infrastructure, reducing overall system complexity while maintaining high adaptability.
2Loss of time
If user plane functions are deployed close to access network, then service latency is reduced, but network architecture complexity increases
Solution Approach 1:
The patent applies dimensionality change by transitioning from centralized user plane function deployment to distributed edge deployment. User plane functions are placed at the network edge closer to users and access networks, adding a spatial dimension to the architecture that reduces transmission latency while maintaining manageable complexity through standardized interface definitions.
Solution Approach 2:
The patent implements preliminary action by pre-configuring user plane functions at edge locations with necessary routing and forwarding capabilities before traffic arrives. This allows immediate local processing of user data, reducing latency without requiring complex real-time coordination, as the edge functions are pre-prepared to handle traffic locally.
3Stability of the object's composition
If unified policy framework is implemented across diverse access networks, then service consistency is improved, but policy management complexity increases
Solution Approach 1:
The patent implements universality through a unified policy framework that manages multiple access networks (5G NR, LTE, Wi-Fi) and multiple network slices through a single policy management entity. This universal framework ensures consistent service delivery across diverse accesses while simplifying management by consolidating policy control in one location rather than requiring separate management for each access type.
Solution Approach 2:
The patent applies the intermediary principle by introducing a unified policy framework as a mediator between the core network and diverse access networks. This intermediary translates high-level service requirements into access-specific configurations, ensuring service consistency while shielding management systems from the complexity of individual access network differences.
4Adaptability or versatility
If network slicing is implemented for different service types, then service adaptability is improved, but resource management complexity increases
Solution Approach 1:
The patent applies segmentation by creating separate network slices for different service types (eMBB, uRLLC, mMTC), each with dedicated resource pools and management policies. This segmentation allows each slice to be optimized for its specific service requirements while simplifying resource management within each slice, as resources can be independently allocated and managed without affecting other slices.
Data Source
AI summary
An access and mobility management function (AMF) receives from a first wireless device a non-access stratum (NAS) message comprising an identifier (ID) of a group communication session. The AMF receives from a session management function (SMF) a message comprising a list of one or more second wireless devices associated with the group communication session and a list of one or more packet data unit (PDU) sessions. The AMF determines, based on a state of the one or more second wireless devices, to page the one or more second wireless devices. The AMF receives from the one or more second wireless devices one or more service request messages.