Expected Network Interface Unavailability Handling for Wireless Nodes
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Solution Overview
Problem
Network nodes in wireless communication systems face challenges in managing network interface unavailability due to unexpected transitions, leading to unnecessary configuration procedures and resource wastage, particularly in non-terrestrial networks where satellite movements cause periodic unavailability.
Innovation Solution
Implement techniques to provide network nodes with information indicating expected unavailability of peer nodes or interfaces, allowing them to maintain application layer configurations during unavailability and avoid unnecessary recovery procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If network nodes perform configuration procedures upon detecting interface unavailability, then system reliability is improved, but processing resources and power are wasted when unavailability is expected
Solution Approach 1:
The patent applies preliminary action by providing network nodes with advance information about expected unavailability periods before they occur. This allows nodes to proactively maintain application layer configurations during known unavailability windows, preventing the need to perform configuration procedures that would be wasted if the interface is already unavailable. The unavailability information enables nodes to prepare in advance and avoid unnecessary processing when the interface becomes unavailable as expected.
2Reliability
If network nodes trigger recovery procedures upon interface unavailability, then connection reliability is improved, but latency increases due to unnecessary recovery procedures
Solution Approach 1:
The patent applies preliminary action by enabling network nodes to anticipate unavailability events through advance information. Nodes can maintain configurations during expected unavailability periods and only trigger recovery procedures when actual unavailability exceeds expectations or persists beyond predicted windows. This selective approach reduces unnecessary recovery procedures and associated latency while maintaining connection reliability through informed decision-making.
3Reliability
If network nodes perform configuration procedures upon interface unavailability, then system reliability is improved, but signaling overhead increases
Solution Approach 1:
The patent applies preliminary action by providing unavailability information in advance, allowing network nodes to maintain application layer configurations during expected unavailability periods without triggering configuration procedures. This proactive approach significantly reduces the number of signaling messages required for configuration updates and recovery procedures, thereby reducing signaling overhead while maintaining system reliability through informed configuration management.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first network node may receive information that indicates an expected unavailability of a second network node or a network interface between the first network node and the second network node. The first network node may determine, in accordance with the received information, that a state of the second network node or the network interface between the first network node and the second network node is an unavailable state. The first network node may maintain an application layer configuration associated with the second network node or the network interface while the state of the second network node or the network interface is the unavailable state. Numerous other aspects are described.