Nomadic Node Activation via Context-Aware Trigger Messages
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Solution Overview
Problem
The integration of Nomadic Nodes (NNs) into wireless networks faces challenges due to their unpredictable availability and location changes, requiring autonomous activation and deactivation to efficiently manage network capacity and coverage, especially when operating on vehicle batteries, necessitating context-aware and efficient decision-making processes.
Innovation Solution
A method and system where network control units autonomously activate and deactivate NNs based on demand requirements by sending trigger messages and context information, determining appropriate activation or deactivation modes, and managing vehicle battery usage through context-aware decision-making, allowing for efficient integration into wireless communication networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If NNs are activated continuously to ensure network coverage and capacity, then network service reliability is improved, but energy consumption increases and operation efficiency deteriorates
Solution Approach 1:
The patent implements dynamic activation and deactivation of NNs based on real-time network conditions, service demand, and vehicle location. The network control unit receives status information from NNs and sends activation/deactivation commands dynamically, allowing the system to adapt to changing conditions rather than maintaining continuous activation. This resolves the contradiction by making the system flexible - NNs are activated when needed for reliability and deactivated when not needed to conserve energy.
Solution Approach 2:
The patent changes the operational state parameter of NNs between active and inactive modes based on evaluated conditions. The network control unit evaluates multiple parameters including service demand, network load, and NN status, then changes the activation state parameter accordingly. This parameter-based control resolves the contradiction by transitioning the system between different operational states optimized for different conditions.
2Measurement precision
If manual control is used for NN activation to ensure reliable decision-making, then activation accuracy is improved, but operation complexity increases and automation level decreases
Solution Approach 1:
The patent implements a feedback mechanism where NNs send status information to the network control unit, which evaluates the information against predefined conditions and service requirements. The control unit then makes automated activation/deactivation decisions based on this feedback loop. This resolves the contradiction by automating the decision-making process while maintaining accuracy through systematic evaluation of relevant parameters and conditions.
Solution Approach 2:
The network control unit autonomously manages NN activation and deactivation without requiring manual intervention. The system self-evaluates conditions, makes decisions, and executes commands automatically. This resolves the contradiction by achieving high automation while maintaining decision accuracy through programmed evaluation criteria and systematic control logic.
3Speed
If NNs are activated without coordination to respond quickly to service demand, then response speed is improved, but service reliability deteriorates due to potential interruptions
Solution Approach 1:
The patent implements a two-stage activation process with potential NN mode preceding full active mode. Before fully activating an NN, the system first transitions it to potential NN mode as a preparatory action, allowing for coordinated handover preparation. This preliminary action resolves the contradiction by enabling faster response while maintaining reliability - the system can quickly move NNs to potential mode and coordinate handovers before full activation, preventing service interruptions.
Solution Approach 2:
The patent prepares handover procedures and alternative NN configurations in advance before actual activation or deactivation occurs. The network control unit evaluates conditions and prepares backup options beforehand, cushioning against potential service interruptions. This resolves the contradiction by enabling quick response while preventing reliability issues through pre-prepared contingency measures.
Data Source
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AI summary
The present invention provides methods for activating and deactivating Nomadic Nodes (NNs) in a network. For activating at least one NN, the at least one NN provided on a vehicle sends a trigger message to the network, when the vehicle enters a determined motion state, location state, and/or operation state. Then, the at least one NN sends context information to the network. The network determines based on the received context information, whether the at least one NN is an appropriate active NN or potential NN, and instructs the at least one NN to switch to an active NN mode or a potential NN mode, if it determines that the at least one NN is an appropriate active NN or potential NN. For deactivating at least one NN in a network, the at least one NN sends a trigger message to the network, when the vehicle enters a determined motion state, location state, and/or operation state. Then, the network determines, whether the at least one NN is an active NN or a potential NN. The network removes the at least one NN from a list of potential NNs, if the at least one NN is a potential NN, or instructs the at least one NN to switch out of an active NN mode after a determined transition time, if the at least one NN is an active NN.