Wireless Packet Failure Detection for Fast Link Recovery
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Solution Overview
Problem
Existing wireless communication networks lack rapid failure detection and recovery mechanisms, leading to excessive overhead and slow response times, which are not optimized for wireless communications.
Innovation Solution
Implementing a hardware-assisted rapid transport channel failure detection algorithm in a Gigabit Ethernet data access card, combined with a layer-2 network optimization protocol, to provide fast and resilient wireless packet communications with minimal impact on throughput.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wired network protocols and RPR standards are used for wireless communications, then network topology and data transmission can be established, but failure detection and recovery response time is excessive and not optimized for wireless communications
Solution Approach 1:
The patent replaces wired network protocols (RPR, SONET/SDH) with a wireless-optimized protocol suite that includes custom failure detection mechanisms, MAC layer protocols, and physical layer interfaces designed specifically for wireless environments. This substitution enables failure detection and recovery in 50 milliseconds or less, compared to the excessive response times of wired protocols in wireless contexts.
Solution Approach 2:
The patent modifies key protocol parameters including timing thresholds, detection intervals, and recovery mechanisms to be optimized for wireless communication characteristics. The failure detection threshold is set to trigger within 50 milliseconds, and the protocol stack is reconfigured with wireless-appropriate timeout and retransmission parameters.
2Productivity
If link aggregation is used to increase bandwidth, then communication channel capacity between nodes is improved, but device complexity and overhead increase
Solution Approach 1:
The patent combines multiple wireless communication channels into aggregated link groups that function as single logical channels. This merging provides increased bandwidth and resilience while the protocol automatically manages the aggregation, reducing the complexity of manual configuration and management compared to traditional link aggregation implementations.
3Reliability
If RPR topology with dual counter rotating rings is implemented, then network resilience and bandwidth are improved, but protocol complexity and overhead are excessive for wireless networks
Solution Approach 1:
The patent extracts and adapts only the essential resilience features from RPR topology (dual path capability, failure detection, and automatic rerouting) while removing the excessive protocol overhead and complex messaging mechanisms. The simplified protocol maintains network resilience through dual wireless paths without requiring the full RPR protocol stack.
4Speed
If standard LAN technology is used, then data transmission rates of 10 Mbps to 1000 Mbps are achieved, but capacity for higher rates (e.g., 10000 Mbps) is limited
Solution Approach 1:
The patent segments high-capacity data streams into multiple parallel wireless channels that can be transmitted simultaneously. This segmentation approach enables aggregate throughput rates of 10 Gbps or higher by combining multiple lower-rate wireless links, overcoming the single-link speed limitations of standard LAN technology.
Data Source
AI summary
Rapid failure detection and recovery in wireless communication networks is needed in order to meet, among other things, carrier class Ethernet transport channel standards. Thus, resilient wireless packet communications is provided using a hardware-assisted rapid transport channel failure detection algorithm and a Gigabit Ethernet data access card with an engine configured accordingly. In networks with various topologies, this is provided in combination with their existing protocols, such as rapid spanning tree and link aggregation protocols, respectively.