Wireless Frequency-Segment Redundancy for Low-Latency Data Reliability
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Solution Overview
Problem
Existing wireless communication systems face challenges in ensuring reliable data transmission, particularly in environments with interference, leading to delayed retransmissions that are disadvantageous for low-latency communications.
Innovation Solution
Simultaneously transmitting redundant data frames over multiple non-contiguous frequency segments to enhance reliability, allowing devices to decode and select intact copies, thereby reducing the need for retransmissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If data is transmitted over a single contiguous frequency range, then the transmission process is simple, but the reliability is low due to interference and retransmission delays
Solution Approach 1:
The patent divides the frequency spectrum into multiple non-contiguous frequency segments and transmits redundant copies of the same data frame across these segments. This segmentation allows the system to achieve diversity gain and improve reliability by ensuring that at least one copy reaches the destination intact, while avoiding the complexity of handling larger continuous bandwidths.
Solution Approach 2:
The patent creates redundant copies of data frames and transmits them simultaneously over multiple frequency segments. The receiving device can select an intact copy without requiring retransmission, thereby improving reliability. This copying approach enhances robustness without significantly increasing system complexity since the copies are generated through straightforward duplication.
2Reliability
If retransmission is used when data is not correctly received, then data integrity is maintained, but latency increases
Solution Approach 1:
The patent performs preliminary action by transmitting redundant copies of data frames in advance across multiple frequency segments before any potential transmission failure occurs. The receiving device has multiple intact copies ready for immediate selection, eliminating the need for time-consuming retransmission processes and thereby reducing latency while maintaining data integrity.
Solution Approach 2:
The patent provides beforehand cushioning by preparing multiple redundant data frame copies across different frequency segments ahead of time. This cushioning ensures that if one transmission path fails, the receiver already has alternative intact copies available, preventing the need for retransmission and thus reducing time loss while preserving data integrity.
3Reliability
If multiple frequency segments are used for transmission, then reliability improves through redundancy, but the transmission process becomes more complex
Solution Approach 1:
The patent segments the transmission across multiple non-contiguous frequency segments, improving reliability through frequency diversity. The segmentation approach simplifies operation by allowing the system to use standard transmission protocols on each segment independently, avoiding the need for complex coordinated transmission mechanisms across the entire spectrum.
Solution Approach 2:
The patent changes the frequency parameter by transmitting identical data frames at different frequency segments simultaneously. This parameter change enables reliability improvement through frequency diversity while keeping the transmission operation simple, as the same data processing and modulation techniques are applied across all segments, requiring no fundamental operational changes.
Data Source
AI summary
An example method of wireless data transmission may include selecting a first frequency segment and selecting a second frequency segment that is different from and non-contiguous with the first frequency segment. The method may further include encoding a first signal with a data frame using the first frequency segment and encoding a second signal with the data frame using the second frequency segment. The method may further include providing the first signal and the second signal for wireless transmission such that at least a portion of the first signal and a portion of the second signal are simultaneously wirelessly transmitted.