FHSS Transceiver Channel Reservation for High Priority Packets
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Solution Overview
Problem
Conventional wireless mesh networks face inefficiencies in throughput and latency due to synchronization overhead and channel collision probabilities, especially when handling high-priority data, as they do not distinguish between standard and high-priority transmissions.
Innovation Solution
Implementing a single transmitter/multiple receiver transceivers configured to prioritize high-priority traffic on a dedicated channel, while using multiple channels for standard traffic, allowing immediate resource allocation for high-priority data transmission and reducing transmission latency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If FHSS synchronization procedure is implemented, then channel interference is reduced, but transmission overhead and latency increase
Solution Approach 1:
The patent extracts the synchronization requirement only for high-priority packets, separating it from standard packets. This allows high-priority packets to maintain reliable communication through synchronization while standard packets use simpler asynchronous transmission, reducing overall overhead and latency.
Solution Approach 2:
The patent segments packet handling into two distinct paths: high-priority packets undergo synchronization procedures while standard packets do not. This segmentation allows the system to apply synchronization only where critical, reducing the time loss associated with universal synchronization.
2Reliability
If high priority packets are handled separately with synchronization, then transmission reliability improves, but device complexity increases
Solution Approach 1:
The patent applies synchronization mechanisms locally only to high-priority packet transmissions rather than universally. The transceiver maintains synchronization state specifically for high-priority channels, providing enhanced reliability where needed while keeping the overall device complexity manageable through selective application.
3Productivity
If all packets use the same transmission channel, then channel utilization is maximized, but high priority packet latency increases
Solution Approach 1:
The patent introduces a temporal dimension to channel allocation by reserving specific time slots for high-priority packets. This allows the system to maintain high channel utilization through frequency reuse while ensuring high-priority packets receive dedicated transmission opportunities, reducing their latency.
Solution Approach 2:
The patent performs preliminary reservation of time slots and synchronization procedures for high-priority packets before transmission. This advance preparation ensures that when high-priority packets arrive, they can be transmitted immediately with guaranteed channel access, minimizing latency while maintaining overall channel utilization.
Data Source
AI summary
One embodiment of the present invention implements a FHSS system using single transmitter/multiple receiver transceivers. Such transceivers are configured to receive multiple FHSS channels (e.g., five channels) but only transmit on one channel. In an embodiment, one channel is dedicated to high priority traffic and the other four channels are dedicated to standard traffic. In receiving a high priority message, the transceiver is configured to address the high priority traffic first. For example, because the single transmitter/multiple receiver transceivers only has one transmitter, such transceiver may immediately dedicate it transmitting resources to addressing the received high priority data. Other embodiments are disclosed that implement multiple priorities among a plurality of communication channels.