Regenerative Payload Base Station Interface Release During NTN Movement
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Solution Overview
Problem
Existing non-terrestrial network (NTN) systems with regenerative payloads face challenges in maintaining stable base station interfaces due to satellite movement, which disrupts reliable connections between base stations and core network nodes.
Innovation Solution
A method and device for controlling the interface of a regenerative payload base station in NTN systems, involving the transmission of NG removal request messages to core network entities, receiving responses, and initiating TNL connection removal operations to manage resources associated with the interface instances.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a transparent payload is used in NTN systems, then data transmission through relay is achieved, but base station interface stability deteriorates due to satellite movement
Solution Approach 1:
The patent applies dynamics by making the base station interface configuration adaptive to satellite movement. The network entity dynamically adjusts interface parameters based on real-time satellite position and velocity information, allowing the system to maintain stable communication despite the moving platform. This transforms the static interface configuration into a dynamic one that adapts to orbital mechanics.
Solution Approach 2:
The patent implements preliminary action by pre-configuring multiple interface instances with different parameters before satellite movement causes connection failure. The network entity proactively sets up backup interfaces and pre-calculates optimal configuration parameters based on predicted satellite trajectories, ensuring seamless handover when movement disrupts the current connection.
2Reliability
If wired base stations are deployed for NTN, then core network connectivity is achieved, but deployment feasibility deteriorates in environments where wired infrastructure is not available
Solution Approach 1:
The patent replaces the mechanical wired connection system with a wireless communication system. Instead of requiring physical cable infrastructure between base stations and core network nodes, the invention uses radio frequency communication over the air interface, enabling deployment in remote and mobile environments where wired infrastructure is impractical or impossible to install.
Solution Approach 2:
The patent creates a universal base station interface that can operate in both wired and wireless modes. The interface design supports multiple connection types (wired backhaul and wireless aerial interface), allowing the same base station architecture to be deployed in diverse environments ranging from ground-based infrastructure to satellite platforms, thereby achieving ease of deployment across different scenarios.
3Reliability
If interface resources are maintained continuously, then communication stability is improved, but resource waste increases during satellite handover
Solution Approach 1:
The patent implements periodic action by establishing and releasing interface instances in rhythmic cycles synchronized with satellite orbital periods and handover events. Instead of maintaining continuous interfaces, the system periodically activates interface instances when satellites enter coverage zones and deactivates them when satellites exit, creating an on-demand resource allocation pattern that matches the periodic nature of orbital mechanics.
Solution Approach 2:
The patent uses feedback mechanisms where the network entity continuously monitors satellite position, signal quality, and interface performance metrics. Based on this feedback, the system dynamically decides when to activate or deactivate interface instances, adjusting resource allocation in real-time to maintain communication stability only when and where it is actually needed, thereby avoiding waste during handover transitions.
Data Source
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AI summary
Provided are a method and device for performing communication by a regenerative payload base station. The method may include transmitting an NG removal request message to a core network entity, receiving an NG removal response message from the core network entity, and initiating a transport network layer (TNL) connection removal operation for the core network entity and removing resources associated with an interface instance.