Network Exposure Function Release Assistance Indicator for 5G IoT
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current 5G systems face challenges in implementing enhanced features and functionalities, particularly in 5G Cellular Internet of Things (IoT), Machine Type Communication (MTC), and network slicing, where existing technologies struggle with efficient registration management, connection management, and quality of service (QoS) in multi-access environments.
Innovation Solution
The implementation of advanced network functions such as Access and Mobility Management Function (AMF), Session Management Function (SMF), and User Plane Function (UPF) within the 5G core network, which include enhanced registration management, connection management, and QoS control mechanisms, enabling efficient support for 5G IoT, MTC, and network slicing through improved interface protocols and network slicing policies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If existing technologies are used for registration management and connection management in 5G systems, then device compatibility is maintained, but network efficiency and support for enhanced features (IoT, MTC, network slicing) are insufficient
Solution Approach 1:
The patent segments the network functions into specialized components: AMF for access and mobility management, SMF for session management, and UPF for user plane functions. This segmentation allows each function to be optimized independently for specific tasks, improving overall network efficiency while enabling support for diverse features like IoT, MTC, and network slicing through dedicated function instances.
Solution Approach 2:
The patent implements dynamic connection management where the network can transition devices between connected and idle states based on activity levels. The AMF dynamically manages registration states and connection transitions, allowing the network to optimize resource allocation - maintaining full connectivity for active devices while reducing overhead for dormant devices, thereby improving network efficiency and supporting varied service requirements.
2Productivity
If advanced network functions (AMF, SMF, UPF) are implemented, then registration and connection management efficiency is improved, but system complexity increases
Solution Approach 1:
The AMF acts as an intermediary between the radio access network and core network functions. It handles all access and mobility management tasks, serving as a mediator that simplifies the interface for other network functions. The SMF and UPF further mediate session management and user plane operations, respectively. This intermediary architecture improves registration efficiency by centralizing management functions while managing complexity through clear functional boundaries and standardized interfaces.
3Reliability
If connection management is optimized for active devices, then service quality is improved, but resource consumption for idle devices increases
Solution Approach 1:
The patent implements dynamic state management where devices transition between connected and idle states based on their activity. The AMF manages these transitions, maintaining full connection state information for active devices to ensure service quality, while moving inactive devices to idle state to reduce resource consumption. The network can dynamically restore connections when needed, balancing reliability and energy efficiency.
Solution Approach 2:
The patent employs periodic registration updates where idle devices re-establish connection with the network at predetermined intervals. This periodic action allows the network to maintain awareness of device status and location without maintaining continuous active connections, reducing resource consumption for idle devices while ensuring service quality is restored when devices become active again.
Data Source
AI summary
A network exposure function (NEF) may include one or more processors and memory storing instructions that, when executed by the one or more processors, cause the NEF to perform a process. The process can include transmitting, to a session management function (SMF), a message that includes downlink data from an application server and for transmission to a wireless device and a release assistance indicator (RAI). The RAI can indicate transmission of uplink data by the wireless device is expected subsequent to transmission of the downlink data and a release of a connection associated with the wireless device after the transmission of the uplink data. The RAI can be configured to be included with a release message indicating release of a non-access stratum connection associated with the wireless device. The release message can include the RAI.