IoT Access Point Cluster for Mobility Handover
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Solution Overview
Problem
Internet of Things (IoT) devices experience frequent disconnections from access points due to mobility, leading to increased power consumption and reduced battery life as they frequently send probe requests to find new access points.
Innovation Solution
Implementing an access point coordinating cluster system where a second access point can relay acknowledgment messages and data packets to an IoT device, reducing the need for the device to frequently switch access points and thereby minimizing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the internet of things device frequently sends probe request messages to switch associated access points due to mobility, then the device can maintain network connectivity, but the power consumption increases and battery life decreases
Solution Approach 1:
The access point coordinating cluster pre-establishes coordination relationships and signal forwarding mechanisms before the IoT device moves out of coverage. When the device moves, the new access point can immediately send acknowledgment messages through the coordinating cluster without requiring the device to initiate probe requests, thus maintaining connectivity while reducing energy consumption.
Solution Approach 2:
The access point coordinating cluster acts as an intermediary between the IoT device and the network core. When the device moves out of the original access point's coverage, the coordinating cluster members forward acknowledgment messages and data packets to maintain connectivity, eliminating the need for the device to actively search for new access points and reducing its power consumption.
2Reliability
If the internet of things device sends probe request messages frequently to find new access points, then the device can maintain association with the network, but the signaling overheads increase
Solution Approach 1:
The access point coordinating cluster serves as an intermediary that handles signaling between the IoT device and the network. When the device moves, the coordinating cluster members exchange acknowledgment messages and data packets among themselves, reducing the need for the device to send probe requests and associate with new access points, thereby reducing signaling overheads.
Solution Approach 2:
The access point coordinating cluster autonomously manages the forwarding of acknowledgment messages and data packets when the IoT device moves. The cluster members self-organize to maintain connectivity without requiring the device to initiate reassociation procedures, reducing signaling overheads while maintaining network association.
3Adaptability or versatility
If the internet of things device moves out of the coverage area of the initially associated access point, then the device gains mobility flexibility, but data transmission interruption occurs without the coordinating cluster mechanism
Solution Approach 1:
The access point coordinating cluster acts as an intermediary that forwards data packets and acknowledgment messages between the IoT device and the network when the device moves out of the original access point's coverage. This ensures continuous data transmission while allowing the device to move freely within the cluster's coverage area.
Solution Approach 2:
The access point coordinating cluster establishes a continuous data transmission path by forwarding packets among its members. When the IoT device moves out of the original access point's coverage, the coordinating cluster members sequentially forward acknowledgment messages and data packets, ensuring uninterrupted data transmission while maintaining the device's mobility flexibility.
Data Source
AI summary
Embodiments of the present disclosure provide an internet of things-based communication method, which applied to the field of communications technologies to resolve a problem of a short battery life of an internet of things device caused by frequent movement of an internet of things device. The method includes: receiving, by a second access point, a data packet from an internet of things device, where the data packet carries an identifier of an access point coordinating cluster; and sending, by the second access point, a first acknowledgment message to the internet of things device; or sending, by the second access point to a first access point, the data packet and signal strength of the data packet received by the second access point.