DetNet Flow Resource Discovery in Layer-3 Wireless Networks
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Solution Overview
Problem
Existing technologies face challenges in identifying nodes within a wireless communications network aware of deterministic networks, determining resource availability for deterministic network traffic, and establishing deterministic networks in systems unaware of these networks.
Innovation Solution
A method and apparatus for discovering resource availability for layer-3 deterministic network flows, involving a network node and user equipment that receive and determine resource requirements, obtain availability indications, and send flow availability indications to establish deterministic networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If deterministic network support is implemented in wireless communications networks, then resource availability for deterministic network flows can be determined, but network complexity and difficulty of implementation increase for nodes unaware of deterministic networks
Solution Approach 1:
The patent introduces a dedicated discovery message mechanism as an intermediary between deterministic network-aware nodes and unaware nodes. The discovery messages are transmitted through the network to identify available resources and capabilities, allowing deterministic network support to be established without requiring all nodes to be inherently aware of deterministic networking protocols. This mediator approach resolves the contradiction by enabling reliable deterministic flow support while keeping individual node complexity manageable.
Solution Approach 2:
The patent implements preliminary discovery procedures that occur before deterministic network flows are established. Network nodes perform advance discovery of resource availability and deterministic network capabilities through structured message exchanges. This preliminary action allows the network to prepare and identify suitable paths and resources in advance, reducing the complexity burden during actual deterministic flow operation while ensuring reliable support.
2Measurement precision
If resource availability discovery procedures are implemented for deterministic network flows, then resource allocation accuracy improves, but information exchange overhead and network traffic increase
Solution Approach 1:
The patent segments the resource availability discovery process into distinct phases and message types. Discovery messages are divided into specific components including capability indicators, resource availability status, and flow requirement specifications. This segmentation allows for precise resource determination while optimizing information exchange by transmitting only relevant data in each message segment, thereby reducing overall signaling overhead while maintaining high measurement precision.
Solution Approach 2:
The patent utilizes parameter-based discovery messages that can be dynamically adjusted based on network conditions and deterministic flow requirements. The discovery procedure changes parameters such as message frequency, detail level, and scope of resource inquiry to balance accuracy requirements against overhead constraints. This parameter adaptation enables precise resource availability determination when needed while reducing information overhead during normal operation.
3Adaptability or versatility
If deterministic network establishment is supported in systems with unaware end systems, then network versatility and adaptability improve, but the difficulty of detecting and measuring network capabilities increases
Solution Approach 1:
The patent implements a feedback mechanism where network nodes actively probe and receive responses about deterministic network capabilities. Discovery messages are sent to potential end systems, and the nature of the response (or lack thereof) provides feedback about whether the system is deterministic network-aware. This feedback loop enables the network to detect and measure capabilities dynamically, allowing versatile deterministic network establishment while managing the difficulty of capability detection through structured interaction protocols.
Data Source
AI summary
There is provided a method for discovering availability of wireless communication system resources for at least one Deterministic Network, DetNet, flow, comprising: receiving DetNet requirement information; using the DetNet requirement information, determining a network resource requirement for at least one network node; obtaining a resource availability indication indicating whether the network resource needed to satisfy the network resource requirement is available; determining a DetNet flow availability indication based on the obtained resource availability indication; and sending the DetNet flow availability indication to one or more network or application nodes.