Narrow Channel Segmentation in Wireless Networks
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current Wi-Fi systems face inefficiencies and unfairness due to wide channels, which lead to reduced end-user throughput, interference with neighboring networks, and inability to utilize non-contiguous frequency spectra effectively, as they either use the entire bandwidth or none at all, and existing techniques lack independence and synchronization, resulting in decreased efficiency and fairness.
Innovation Solution
The system splits a wide wireless channel into multiple independent narrow channels, allowing asynchronous operation without synchronization, using a compound radio with inter-radiolet symbol synchronization and dynamically configurable filters to mitigate interference and optimize transmission and reception, enabling efficient use of non-contiguous frequency bands and reducing unfairness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If wide channels are used to increase bandwidth, then transmission speed increases, but end-user throughput decreases due to pause times and channel width reduction
Solution Approach 1:
The patent segments a wide channel into multiple independent narrow channels. Each narrow channel operates autonomously with its own pause time, allowing parallel transmissions. This segmentation resolves the contradiction by maintaining high transmission speed through wide total bandwidth while improving end-user throughput through parallel channel operations that eliminate the need for single-channel pause waiting.
2Quantity of substance
If wide channels are used to increase bandwidth, then transmission capacity increases, but network fairness deteriorates due to overlap with neighboring networks
Solution Approach 1:
By dividing a wide channel into multiple narrow channels, the patent reduces the probability of overlap with neighboring networks. Each narrow channel has a smaller frequency range, making it less likely to interfere with or be interfered by adjacent networks. This maintains total bandwidth capacity while improving network fairness through reduced interference.
Solution Approach 2:
The patent allows different narrow channels to have different operational characteristics tailored to local conditions. Each channel can independently adapt to its specific interference environment, enabling localized optimization that improves overall network fairness while maintaining total capacity.
3Quantity of substance
If wide channels are used, then total bandwidth is maximized, but ability to utilize non-contiguous frequency spectra is lost
Solution Approach 1:
The patent segments the frequency spectrum into multiple independent narrow channels that can be selectively activated. This allows the system to utilize non-contiguous frequency bands by enabling only the narrow channels that fall within available spectrum, while keeping the total bandwidth maximized through selection of all available frequency segments.
Solution Approach 2:
The patent implements dynamic channel selection where narrow channels can be independently enabled or disabled based on spectrum availability. This dynamic adaptability allows the system to maximize bandwidth utilization in non-contiguous frequency scenarios by activating only the channels that are currently available.
4Adaptability or versatility
If multiple narrow channels are used with interdependence, then spectrum utilization improves, but efficiency decreases due to lack of independence
Solution Approach 1:
The patent segments the communication system into independent narrow channel units, each capable of autonomous operation. This independence allows each channel to operate efficiently without being constrained by the state of other channels, maintaining high device efficiency while achieving good spectrum utilization through selective channel activation.
Data Source
AI summary
A multiple independent narrow-channel wireless network and method for transmitting and received data over a wireless network using a fragmented frequency spectrum. The system and method uses a plurality of narrow wireless channels obtained from splitting a wide wireless channel. Each narrow channel performs sending, receiving, and carrier sensing. Moreover, each narrow channel is independent such that data can be sent or received without any interference from other narrow channels and without synchronization. Embodiments of the system and method include a compound radio having a compound receiver and a compound transmitter. The compound transmitter includes an inter-radiolet symbol synchronization module, to permit use of a single inverse fast Fourier transform block, and a dynamically configurable filter array, to mitigate leakage between channels. The compound receiver uses fraction data rate processing to optimize efficiency. A throughput maximal metric technique is used to determine its frequency of operation in white spaces.