Broadcast Session Restoration After Radio Access Node Failure
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Solution Overview
Problem
Existing wireless communication systems face challenges in restoring multicast/broadcast services when radio access nodes fail or restart, leading to service interruptions and undeliverable data without effective mechanisms to manage session transitions.
Innovation Solution
Implementing an apparatus with a processor and memory configured to store multicast/broadcast service session information, detect node failures or unreachability, and adjust service delivery by managing tunneling endpoint identifiers to redirect or terminate data delivery to new or existing radio access nodes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multicast/broadcast service session information is stored and node failure detection is implemented, then service restoration capability is improved, but device complexity increases
Solution Approach 1:
The apparatus stores multicast/broadcast service session information (including tunneling endpoint identifiers) in advance before node failures occur. This preliminary storage of session context enables rapid service restoration when failures happen, as the stored information can be immediately utilized to re-establish service delivery without extensive reconfiguration.
Solution Approach 2:
The apparatus acts as an intermediary between the multicast/broadcast session management function and the radio access nodes. It maintains session information and manages tunneling endpoint identifiers, serving as a mediator that coordinates service restoration when nodes fail or restart, thereby improving reliability while distributing complexity across the network architecture.
2Duration of action of stationary object
If tunneling endpoint identifier management is implemented for service restoration, then service continuity is improved, but data delivery efficiency may deteriorate due to additional processing
Solution Approach 1:
Tunneling endpoint identifiers and session context are stored in advance before failures occur. When node failures or restarts happen, the apparatus can immediately retrieve pre-stored identifier information and re-establish service delivery without extensive real-time processing, thus maintaining service continuity while minimizing impact on data delivery efficiency.
3Device complexity
If local handling of node restarts is implemented, then network reconfiguration overhead is reduced, but detection capability requirements increase
Solution Approach 1:
The apparatus serves as an intermediary that centralizes the detection and management of node failures and restarts. By implementing detection logic at this intermediary point rather than distributing it across all network elements, the system reduces overall network reconfiguration complexity while maintaining adequate detection capability through the intermediary's monitoring functions.
Data Source
AI summary
Systems, methods, apparatuses, and computer program products for broadcast service restoration for multicast/broadcast service upon radio access node failure or restart are provided. For example, a method may include storing a last multicast/broadcast service session information received from a multicast/broadcast session management function corresponding to a multicast/broadcast service session. The method may also include detecting that a radio access node associated with the multicast/broadcast service session has restarted or is unreachable. The method may further include taking a further action to adjust the delivery of the multicast/broadcast service session based on the detection.