Non-Terrestrial Roaming Priority for QoS-Critical 5G Handover
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing 5G wireless communication systems face challenges in efficiently managing roaming priorities for user equipment (UE) between terrestrial and non-terrestrial radio network nodes, particularly in ensuring quality-of-service requirements for varying latency and reliability needs.
Innovation Solution
A method and system for determining and facilitating roaming priorities based on quality-of-service (QoS) information, including transmitting user equipment roaming information to enable seamless communication sessions between terrestrial and non-terrestrial radio network nodes, utilizing processors and machine-readable media to manage connection establishment and traffic delivery according to preferred QoS.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional roaming procedures are used between terrestrial and non-terrestrial radio network nodes, then basic connectivity is maintained, but quality-of-service requirements for latency and reliability cannot be satisfied
Solution Approach 1:
The system performs preliminary actions by determining roaming priorities and configuring QoS parameters before the actual roaming handover occurs. The source radio network node determines the roaming priority of the UE and configures appropriate QoS parameters in advance, ensuring that when the handover to non-terrestrial network occurs, the QoS requirements for latency and reliability are already satisfied without requiring complex real-time negotiations during the actual roaming process.
2Reliability
If roaming priority determination is implemented for QoS management, then quality-of-service requirements are met, but system complexity increases
Solution Approach 1:
The system segments the QoS management function into distinct components: the source radio network node determines roaming priorities and configures QoS parameters, while the target radio network node applies these pre-configured parameters. This segmentation allows complex QoS management to be distributed across multiple nodes with specific responsibilities, reducing the complexity burden on any single node while maintaining overall system reliability.
Solution Approach 2:
The source radio network node acts as an intermediary that determines roaming priorities and configures QoS parameters before handover. This intermediary function centralizes the complex decision-making process in a single node that has full context about the UE's service requirements, simplifying the overall system architecture by avoiding distributed complexity across all network nodes.
3Adaptability or versatility
If seamless roaming between terrestrial and non-terrestrial networks is enabled, then connectivity is maintained, but efficient resource allocation becomes challenging
Solution Approach 1:
The source radio network node performs preliminary configuration of QoS parameters and roaming priorities before the handover occurs. This allows the target non-terrestrial radio network node to receive pre-configured instructions on how to allocate resources efficiently, eliminating the need for complex real-time resource negotiation and improving resource allocation efficiency while maintaining seamless roaming capability.
Data Source
AI summary
A user equipment may be associated with a guaranteed quality-of-service with respect to a home network. The user equipment may request connection establishment with a terrestrial radio network node corresponding to the home network. The home terrestrial node may configure the user requirement with a roaming priority level, a user equipment priority class corresponding thereto, or an identifier associated with a non-terrestrial radio network node corresponding to a network other than the home network. The home terrestrial node may configure the non-terrestrial node with the user equipment priority class. Upon roaming into signal coverage corresponding to the non-terrestrial node, the user equipment may establish a connection therewith, based on the priority class, that facilitates communicating according to the guaranteed quality-of-service. If connection establishment with the non-terrestrial node fails, the user equipment may establish connection with a roaming terrestrial node based on a roaming priority level indication broadcast thereby.