Gateway Node Synchronizing TSCH and CSMA Networks
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Solution Overview
Problem
Existing communication systems between time-synchronized resource provider networks and non-time synchronized home area networks face inefficiencies due to asynchronous operations, leading to idle periods and suboptimal bandwidth allocation.
Innovation Solution
Implementing a gateway node that synchronizes wake-up intervals of home area network devices with a time-synchronized channel hopping protocol, allowing communication using a carrier sense multiple access protocol, and determining a communication schedule that allocates specific time slots and channels for communication between the two networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If home area network devices operate independently without time synchronization, then device complexity and protocol compatibility are improved, but bandwidth utilization and communication efficiency deteriorate due to idle periods and asynchronous operations
Solution Approach 1:
The gateway node dynamically adjusts the wake-up intervals of HAN devices to align with TSCH slot-offsets, creating a flexible synchronization mechanism that maintains protocol independence while optimizing bandwidth utilization through adaptive timing adjustments
Solution Approach 2:
The system changes the time parameter by synchronizing HAN wake-up intervals with specific TSCH slot-offsets, transforming asynchronous operations into coordinated communication patterns that improve bandwidth utilization without requiring full time synchronization of the HAN
2Use of energy by moving object
If HAN devices remain in sleep state during non-communication periods, then energy consumption is reduced, but communication responsiveness and network connectivity deteriorate
Solution Approach 1:
HAN devices employ periodic wake-up intervals that are synchronized with TSCH slot-offsets, allowing them to enter low-power sleep states between communications while ensuring reliable connectivity by waking at predetermined intervals to check for and transmit data
3Stability of the object's composition
If communication schedule is centrally determined by head-end unit, then network coordination and synchronization are improved, but communication overhead and system complexity increase
Solution Approach 1:
The communication schedule is segmented into two parts: central determination of wake-up intervals by the head-end unit for coordination stability, and local determination of slot-offset assignments by individual gateway nodes to reduce overall system complexity and distribute processing responsibilities
Data Source
AI summary
Systems and methods are disclosed for providing scheduled communication between a primary network, such as a time synchronized channel hopping (“TSCH”) network, and a secondary network, such as a carrier sense multiple access (“CSMA”) network. During a first selected slot-offset in a TSCH hopping pattern, a gateway node communicates with a primary network node. During a second selected slot-offset in the TSCH hopping pattern, the gateway node communicates with a secondary network node. A communication schedule identifies the source and destination nodes and channel frequency for each slot-offset. The communication schedule is set such that the CSMA wake-up period for the secondary network is synchronized with the second slot-offset in the TSCH hopping pattern.