Wireless Network Coordinator Handover Mechanism
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Solution Overview
Problem
In wireless communication networks, maintaining continuous control functions is challenging, especially when the primary coordinator device fails or moves out of range, leading to disruptions in data transmission and network instability.
Innovation Solution
A method for seamless handover and recovery of control functions, where devices prioritize and transfer control responsibilities based on priority evaluations, ensuring continuous communication by selecting an optimal secondary coordinator, even if the primary coordinator is unavailable.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single coordinator device is used to control resource allocation and timing in a wireless network, then the network structure is simple and easy to manage, but the system reliability deteriorates when the coordinator fails or moves out of range
Solution Approach 1:
The patent applies preliminary action by having devices evaluate and prepare potential coordinator candidates before a failure occurs. Devices continuously monitor network conditions and pre-identify suitable devices that could take over coordinator functions, ensuring immediate failover capability without waiting for actual failure detection.
Solution Approach 2:
The patent implements beforehand cushioning by establishing backup coordinator candidates in advance. When the primary coordinator fails, these pre-positioned backup devices can immediately assume control functions, cushioning against the reliability deterioration caused by coordinator failure or movement.
2Stability of the object's composition
If the coordinator device is fixed to maintain stable control, then the control function is stable, but the system adaptability deteriorates when the coordinator moves or fails
Solution Approach 1:
The patent applies dynamics by making the coordinator role dynamic rather than fixed. Any device in the wireless network can become the coordinator based on real-time conditions such as location, signal strength, and device capability. This dynamic assignment maintains stability through consistent control functions while adapting to changing network conditions and device movements.
Solution Approach 2:
The patent implements universality by enabling multiple devices to potentially serve as coordinators. Instead of designating a single fixed coordinator, the system allows any device to perform coordinator functions based on evaluated suitability criteria, providing both stability through functional consistency and adaptability through device flexibility.
3Adaptability or versatility
If handover processes are implemented to transfer control function between devices, then the system adaptability improves, but the complexity of the control mechanism increases
Solution Approach 1:
The patent applies self-service by enabling devices to autonomously evaluate their own suitability for coordinator roles and initiate handover processes when appropriate. Devices monitor their own status and network conditions, automatically determining when to request or accept coordinator transfer, thereby reducing the need for complex centralized control mechanisms.
Solution Approach 2:
The patent implements feedback through continuous monitoring of network conditions and device performance metrics. This feedback mechanism allows devices to make informed decisions about coordinator handover based on real-time data regarding signal quality, device capability, and network stability requirements, simplifying the control mechanism through data-driven automation.
Data Source
AI summary
A wireless network includes a current coordinator, at least one device which is currently associated with the wireless network, and a device selected as a new coordinator among the at least one device by the current coordinator. The current coordinator transmits a handover request message to the new coordinator; receives a handover response message in response to the handover request message from the new coordinator, the handover response message including a reason code field that is set to “success”; and broadcasts one or more beacons, each beacon including identification information which identifies the new coordinator and number information which indicates a number of remaining beacons that the current coordinator will broadcast before a handover occurs. The number information included in a last beacon among the one or more beacons is set to “0,” and the new coordinator broadcasts a beacon after receiving the last beacon from the current coordinator.