Wireless Router Termination Message for WWAN Fault Detection
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Solution Overview
Problem
Current wireless wide area network (WWAN) technologies lack effective management capabilities and visibility for enterprise customers, as base transceiver stations struggle to distinguish between temporary connectivity losses and router failures, leading to inefficient resource allocation and delayed fault detection.
Innovation Solution
A wireless router is equipped with fault detection and notification logic to generate and transmit a termination message to the base transceiver station upon detecting a fault, allowing for resource reallocation and quick notification of connectivity issues, utilizing a supercap circuitry for backup power to ensure message transmission even during power failures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the base transceiver station keeps the wireless connection open until timeout, then it cannot distinguish between temporary connectivity loss and router failure, but if it closes the connection immediately, then it may prematurely terminate valid connections
Solution Approach 1:
The router sends a termination message before the timeout period expires, proactively notifying the base transceiver station of the fault condition. This preliminary action allows the network to immediately recognize router failure without waiting for the timeout period to elapse, thereby improving fault detection accuracy while avoiding premature connection termination for temporary issues.
2Reliability
If the base transceiver station allocates resources for the wireless router, then it ensures service availability, but it cannot reallocate resources efficiently when the router has failed
Solution Approach 1:
The termination message provides feedback from the router to the base transceiver station about the fault condition. This feedback mechanism enables the base transceiver station to update its resource allocation decisions based on actual router status, allowing efficient reallocation of resources when failure occurs while maintaining service availability when the router is operational.
3Reliability
If the cellular network waits for timeout to detect router failure, then it avoids false alarms, but it delays fault notification and resource reallocation
Solution Approach 1:
The router sends the termination message proactively before the timeout period expires, providing preliminary notification of the fault condition. This approach maintains reliability by ensuring the message is only sent when actual failure occurs, while simultaneously reducing the time delay for fault notification and enabling faster resource reallocation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enables rapid fault notification and resource reallocation, improving network management, troubleshooting, and service delivery by distinguishing between temporary connectivity issues and router failures, enhancing the viability of WWAN technology for wireline replacement services and reducing unnecessary network utilization.
Implementation Method 1
the controller and the cellular transceiver are further configured to transmit the termination message even when a power supply failure occurs
Data Source
AI summary
A wireless router device is configured to detect a fault that would prohibit wireless communications between the router and a wireless wide area network. A message, referred to herein as a termination message, is then generated. The termination message contains information describing the fault and is configured to cause termination of wireless communication with the wireless wide area network. The wireless router than transmits the termination message to at least one base transceiver station that is part of the wireless wide area network. The base transceiver station is then able to assess and reallocate resources, including power management, based on the fault information contained in the received termination message.