Wireless Node Propagation Delay Estimation
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Solution Overview
Problem
Current data networks face inefficiencies due to high volumes of low-bandwidth devices competing for limited network resources, leading to low useful data ratios, particularly in uncoordinated environments like GPS tracking, where the efficiency of using shared network resources is below 10%.
Innovation Solution
A method and system for dynamically estimating propagation time delays between nodes in a wireless network by using kinematic information of satellites within the communication link, allowing for precise timing of packet transmission to optimize resource utilization and synchronization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If devices communicate in an uncoordinated environment, then devices can operate independently and access network resources freely, but network efficiency and useful data ratio deteriorate to below 10%
Solution Approach 1:
The system performs preliminary actions by calculating propagation delays using satellite ephemeris data and device location information before actual communication occurs. This advance preparation enables devices to pre-determine transmission timing, avoiding conflicts and inefficiencies during actual data exchange, thus maintaining independent operation while achieving coordinated network efficiency
2Ease of operation
If propagation delay is not accurately estimated, then device operation is simpler and faster, but packet delivery timing accuracy and network synchronization deteriorate
Solution Approach 1:
The system introduces satellite ephemeris data and location information as intermediary elements to calculate propagation delay. Instead of requiring direct complex measurements between devices, the patent uses these intermediary data sources to derive timing information, maintaining operational simplicity while achieving precise packet delivery timing through the calculated delay values
3Quantity of substance
If network resources are shared among high volumes of low bandwidth devices, then network coverage and device connectivity improve, but resource utilization efficiency and useful data ratio deteriorate
Solution Approach 1:
The system implements dynamic timing adjustment where each device calculates its specific propagation delay and adjusts transmission timing accordingly. This dynamic approach allows the network to accommodate a large number of devices with varying distances and conditions, optimizing resource utilization by ensuring each device transmits at the most efficient time rather than using static time slots
Data Source
AI summary
Apparatuses, methods, and systems for estimating a propagation time between a first node and a second node of a wireless network are disclosed. One method includes determining a first time propagation delay between the first node and the second node based on location of the second node and the kinematic information of a third node, receiving, by the second node, a packet containing a timestamp representing a transmit time of the packet, determining a second time propagation delay between the first node and the second node based upon the difference between the reception time of the packet, and the first time stamp included within the packet, transmitting, by a second node a TX packet after a holding delay based on the first propagation delay and the second propagation delay.