Wireless Node Autonomous Network Formation
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Solution Overview
Problem
Current ZigBee commissioning procedures lack interoperability between different profiles, such as ZigBee Home Automation (ZHA) and ZigBee Light Link (ZLL), leading to inconsistent behavior and non-interoperability, especially when creating networks without a central coordinator or initiator.
Innovation Solution
A method and apparatus that enable a wireless node to determine its capabilities and create a network autonomously, allowing it to function as a router or coordinator, forming either a centralized or distributed network based on its status and the presence of other nodes, thereby facilitating network creation without external action or signaling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If ZigBee devices use different profiles (ZHA and ZLL) with separate commissioning procedures, then each profile can be optimized for its specific use case, but interoperability between profiles is lost and network formation fails when no external coordinator is present
Solution Approach 1:
The patent makes the wireless node capable of performing multiple functions by enabling it to determine its own capabilities (coordinator, router, or initiator) and accordingly perform different network formation operations. The node can act as a coordinator for ZHA profiles, an initiator for ZLL profiles, or a router for both, making the commissioning procedure universal across different ZigBee profiles and eliminating the need for external coordinators.
2Ease of operation
If a centralized commissioning procedure is used with external coordinators, then network formation is controlled and standardized, but the ability of individual nodes to autonomously form networks is reduced
Solution Approach 1:
The patent enables the wireless node to perform self-service by determining its own capabilities and autonomously executing the appropriate network formation operation. The node automatically scans for external coordinators, evaluates its own role, and performs either coordinated network formation, initiated network formation, or router joining without requiring external intervention, thus achieving both standardized control and autonomous operation.
3Reliability
If the commissioning procedure requires external action or signaling, then network formation is guided and errors are reduced, but the complexity of the commissioning process increases and user intervention is needed
Solution Approach 1:
The patent inverts the traditional commissioning approach by having the wireless node determine its own capabilities and initiate the appropriate network formation operation autonomously, rather than requiring external coordinators to guide the process. This inversion simplifies the commissioning process by eliminating the need for external action while maintaining reliable network formation through the node's self-determined role.
Data Source
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AI summary
The invention relates a wireless node and to a method for operating the wireless node, wherein the wireless node comprises a controller arranged for communicating wirelessly with at least one further wireless node so as to determine an ability of the wireless node and to create a network, wherein a characteristic of the network depends on the determined ability of the wireless node.