Dynamic Guard Interval Selection for Wireless Symbol Interoperability
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Solution Overview
Problem
Existing wireless communication protocols that use fixed guard intervals for data transmission can lead to increased data transmission duration and reduced data rates, and devices may struggle to interpret symbols with different guard interval lengths, limiting interoperability and data transfer efficiency.
Innovation Solution
The system allows devices to communicate using multiple guard interval lengths and switch between them in real-time, incorporating offset adjust logic to estimate and compensate for phase and timing offsets, enabling devices to interpret and transmit symbols with varying durations, including those not supported by other devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed guard interval is used to prefix each information symbol, then interference between information symbols is reduced, but data transmission duration increases and data rate decreases
Solution Approach 1:
The patent implements dynamic guard interval selection where the guard interval length is adjusted based on channel conditions and transmission requirements. Devices can switch between different guard interval lengths (e.g., short, medium, long) and selectively implement guard intervals only when needed, allowing optimization of both interference protection and data transmission efficiency
Solution Approach 2:
The patent changes the guard interval parameter from a fixed value to a variable that can be selectively applied. By modifying the guard interval duration based on specific transmission conditions, the system achieves better performance in terms of both reliability and data rate compared to using a constant guard interval
2Productivity
If devices implement multiple guard interval lengths and switch between them, then data transmission efficiency improves, but device complexity increases
Solution Approach 1:
The patent designs devices with multi-functionality to handle multiple guard interval lengths and protocols. The offset adjust logic and protocol interpretation capabilities are made universal, allowing a single device to operate with different guard interval configurations without requiring separate hardware for each mode, thus managing complexity while maintaining flexibility
3Adaptability or versatility
If devices communicate using multiple protocols with different time duration interpretations, then interoperability improves, but protocol complexity increases
Solution Approach 1:
The patent introduces offset adjust logic as an intermediary mechanism that mediates between different protocol interpretations. This logic layer handles the conversion and adjustment between first protocol (single time duration) and second protocol (multiple time durations) interpretations, enabling interoperability while isolating the complexity within a dedicated component rather than throughout the entire system
Data Source
AI summary
In at least some embodiments, a system may comprise one or more devices configurable to communicate according to a first protocol that permits interpretation of transmitted symbols associated with a first time duration. The system may further comprise one or more devices configurable to communicate according to a second protocol that permits interpretation of transmitted symbols associated with multiple time durations. The one or more devices configurable to communicate according to the second protocol are operable to communicate using transmitted symbols associated with the first time duration and to communicate using transmitted symbols associated with a time duration that is not supported by the one or more devices configured to communicate according to the first protocol.