Handover Coordination for Non-Terrestrial Node Mapping
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Solution Overview
Problem
Existing networks face challenges in seamlessly integrating 5G-enabled non-terrestrial nodes with terrestrial nodes, particularly in scenarios where nodes have large coverage areas or are in motion, leading to issues with handover protocols and mapping updates.
Innovation Solution
The implementation of a method that involves initiating communication with terrestrial nodes, storing mappings of unique node identifiers to cell identifiers, and updating these mappings based on indicators that the mapping is subject to change, such as motion relative to the node or shared cell identifiers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If non-terrestrial nodes are integrated with terrestrial networks, then network coverage is expanded, but handover protocol complexity increases
Solution Approach 1:
The patent introduces a mapping mechanism as an intermediary between non-terrestrial and terrestrial network nodes. This mapping stores associations between cell identifiers from different network types, enabling seamless handovers without direct complex coordination between the heterogeneous nodes. The mapping acts as a mediator that simplifies the handover protocol by pre-establishing identifier relationships.
Solution Approach 2:
The patent implements preliminary action by pre-storing mappings between cell identifiers of non-terrestrial and terrestrial nodes before handover occurs. This allows the network to prepare identifier translations in advance, so when a handover is needed, the process can proceed smoothly without real-time complex calculations or coordination.
2Adaptability or versatility
If node identifiers are dynamically updated, then network adaptability improves, but information loss risk increases
Solution Approach 1:
The patent implements feedback mechanisms where network nodes continuously monitor and update their identifier mappings based on current network conditions. When a non-terrestrial node moves or when network configuration changes, the system receives feedback about the new state and automatically updates the mappings accordingly, ensuring information remains current and accurate.
Solution Approach 2:
The patent applies beforehand cushioning by maintaining redundant mapping information and validation mechanisms that prevent information loss during dynamic updates. The system includes checksums, validation protocols, and backup mapping paths that cushion against potential data loss or corruption during the dynamic identifier updates.
Data Source
AI summary
A method for performing a handover operation includes using one or more processors of a non-terrestrial node to initiate communication with a first terrestrial node of a network, the terrestrial node having a first unique node identifier and a cell identifier and store a mapping that associates the first unique node identifier with the cell identifier. The method also includes using the one or more processors to receive an indicator that the mapping is subject to change and update the mapping to associate a second unique node identifier of a second terrestrial node of the network with the cell identifier based on the received indicator.