AMF Node Connection Time Control for 5G Terminal Energy and Latency
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Solution Overview
Problem
In 5G mobile communication, the existing core network architecture is inadequate to support services requiring low latency and high reliability, such as autonomous driving and factory automation, due to limitations in delay time and resource scheduling.
Innovation Solution
A method for controlling connection time of a terminal, where the terminal calculates and transmits the connection time to an AMF node, which determines the acceptability of the requested connection time and adjusts wireless settings to optimize resource scheduling and battery management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal maintains continuous connection to the network, then service availability and response time are improved, but energy consumption increases and resource scheduling efficiency deteriorates
Solution Approach 1:
The patent implements periodic connection and disconnection of the terminal to the network based on scheduled time slots. The terminal connects during designated service windows and disconnects during idle periods, transforming continuous connection into periodic action. This reduces energy consumption while maintaining service availability when needed.
Solution Approach 2:
The patent dynamically adjusts the connection state of the terminal based on service requirements and network conditions. The AMF node controls the terminal's connection timing dynamically, allowing the system to adapt between connected and disconnected states according to real-time needs, optimizing both energy efficiency and service availability.
2Loss of time
If the terminal maintains continuous connection to the network, then service response time is improved, but network resource allocation efficiency deteriorates
Solution Approach 1:
The patent schedules terminal connections in periodic time slots aligned with service requirements. By predicting when services will be needed and pre-scheduling connection windows, the system maintains low response times while ensuring resources are only allocated during necessary periods, improving overall scheduling efficiency.
Solution Approach 2:
The AMF node performs preliminary scheduling of connection times based on service patterns and requirements. By pre-arranging connection windows before services are actually needed, the system prepares resources in advance, ensuring rapid response when services are required while avoiding continuous resource allocation.
3Reliability
If the core network is redesigned for 5G services, then support for low latency and high reliability services is improved, but system complexity increases
Solution Approach 1:
The patent extracts the connection management functionality from the traditional core network architecture and places it in a dedicated AMF node. This separation allows the core network to be redesigned for 5G services with specialized connection control, improving low latency support while organizing complexity into manageable, dedicated components.
Solution Approach 2:
The patent segments the core network functions into specialized nodes including AMF for access and mobility management. This segmentation allows each node to be optimized for specific functions, enabling low latency service support through specialized processing while distributing system complexity across multiple focused components rather than a monolithic architecture.
Data Source
AI summary
In accordance with an aspect of the present disclosure, there is provided a method for connecting to a network by a terminal. The method comprises determining information on a first connection time, wherein the information on the first connection time indicates time to activate a PDU session between the terminal and a base station.