WiFi Access Point Full Spectrum Capture Aggregation
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Solution Overview
Problem
Conventional WiFi systems face inefficiencies in bandwidth utilization due to the need for separate radios to handle different frequency bands, leading to suboptimal performance and limited capacity, especially in environments where signals occupy non-contiguous spectral bands in the 2.4 and 5 GHz regions.
Innovation Solution
A system and method for a WiFi access point utilizing full spectrum capture (FSC) that integrates a receive RF front end and a baseband processor to capture and aggregate signals across multiple non-contiguous WiFi frequency bands, allowing for the creation of aggregated logical channels, which can be dynamically reassigned for optimal traffic handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate radios are used to handle different frequency bands, then each band can be processed independently, but the device complexity and cost increase
Solution Approach 1:
The patent combines multiple frequency band processing capabilities into a single radio transceiver. The receiver captures wideband signals containing multiple frequency bands (2.4 GHz and 5 GHz WiFi bands), and a single baseband processor processes all bands simultaneously, eliminating the need for separate radio hardware for each band while maintaining reliable signal processing.
Solution Approach 2:
The single radio transceiver is designed to be universal, capable of capturing and processing multiple non-contiguous frequency bands (both 2.4 GHz and 5 GHz WiFi bands) through a unified architecture. The baseband processor performs multi-band processing functions, making the system multi-functional without requiring separate specialized hardware for each band.
2Productivity
If multiple frequency bands are captured simultaneously, then bandwidth utilization increases, but the processing complexity increases
Solution Approach 1:
The baseband processor segments the captured wideband signal into separate frequency band components (2.4 GHz and 5 GHz bands) for independent processing. This segmentation allows simultaneous multi-band operation while managing processing complexity by handling each band as a separate logical channel rather than processing the entire wideband signal as one monolithic stream.
Solution Approach 2:
The system maintains continuous capture and processing of multiple frequency bands simultaneously without interruption. The single receiver continuously monitors wideband signals, and the baseband processor continuously processes all bands in parallel, maximizing bandwidth utilization and eliminating idle time that would occur with sequential band processing.
3Device complexity
If a single transceiver handles multiple frequency bands, then device complexity decreases, but the ability to handle concurrent traffic decreases
Solution Approach 1:
The patent adds a frequency dimension to the single transceiver's capabilities by capturing and processing multiple non-contiguous frequency bands simultaneously. This dimensional expansion allows the single radio to handle multiple concurrent traffic streams across different bands (2.4 GHz and 5 GHz) as if they were separate channels, effectively increasing concurrent traffic handling capacity without adding multiple radio hardware units.
Data Source
AI summary
A WiFi access point (AP) includes a receive radio frequency (RF) front end and a baseband processor that controls operation of the receive RF front end. The RF front end captures signals over a wide spectrum that includes a plurality of WiFi frequency bands (2.4 GHz and 5 GHz) and channelizes one or more WiFi channels from the captured signals. The baseband processor combines a plurality of blocks of WiFi channels to create one or more aggregated WiFi channels. The receive RF front end may be integrated on a first integrated circuit and the baseband processor may be integrated on a second integrated circuit. The first and second integrated circuits may be integrated on a single package. The RF front end and the baseband processor may be integrated on a single integrated circuit. The WiFi access point comprises a routing module that is communicatively coupled to the baseband processor.