UPF Satellite Link Determination for Low Latency
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Solution Overview
Problem
In current communication network systems, satellite links often have high latency, which can prevent certain services from being properly responded to, especially in remote areas where stringent low-latency quality of service standards are required.
Innovation Solution
A method and device for determining satellite link information in a user plane function (UPF) network element, which involves determining satellite backhaul and access information based on cell location and network deployment, and sending this information to other network elements like the session management function (SMF) to configure suitable quality of service identities for terminals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If satellite link is used for connection, then coverage in remote areas is improved, but latency increases
Solution Approach 1:
The network side determines satellite link information in advance based on terminal location and network deployment information before actual communication occurs. This preliminary determination allows the system to pre-configure quality of service identities and prepare routing paths, enabling the terminal to use satellite links when needed while having latency-compensation mechanisms already in place.
Solution Approach 2:
The system changes the quality of service parameters by configuring different quality of service identities based on whether the terminal is using satellite backhaul, satellite access, or neither. This parameter adjustment allows the network to optimize performance for different satellite link scenarios, mitigating the inherent latency issue through adaptive parameter configuration.
2Productivity
If satellite link information is determined and configured, then service response is improved, but network complexity increases
Solution Approach 1:
The user plane function network element autonomously determines satellite link information based on terminal location and network deployment information without requiring complex external control. The UPF self-determines whether the terminal is using satellite backhaul, satellite access, or neither, and configures appropriate quality of service identities independently, reducing the need for complex centralized control.
Solution Approach 2:
The network complexity is segmented into distinct functional components: location determination, network deployment information retrieval, satellite link status determination, and quality of service configuration. Each component is handled by specific network elements (UPF for local determination, SMF for session management), distributing the complexity across the network architecture rather than concentrating it.
Data Source
AI summary
The present disclosure provides a method for determining satellite link information, in which the satellite link information corresponding to a terminal is determined based on information of a cell in which the terminal is located and network deployment information corresponding to the UPF network element.