Sub 1 GHz Wireless Device Discovery Window Segmentation
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Solution Overview
Problem
Current wireless communication networks operating in the Sub 1 Gigahertz band face inefficiencies in device discovery and synchronization due to parameter settings optimized for higher frequency bands, leading to suboptimal performance in terms of power consumption and communication range.
Innovation Solution
Adopting a modified discovery scheme with longer Discovery Windows (DWs) and beacon intervals tailored for the Sub 1 Gigahertz band, dividing DWs into segments for synchronization and service discovery, and utilizing parameters compliant with IEEE 802.11ah specifications to enhance communication efficiency and reduce power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If discovery window parameters are optimized for higher frequency bands, then device discovery efficiency is improved, but communication range and power consumption performance deteriorate in Sub 1 Gigahertz band
Solution Approach 1:
The patent modifies discovery window parameters including duration, interval, and segmentation specifically for Sub 1 Gigahertz band operation. By adjusting these parameters to match the propagation characteristics of lower frequency bands, the system achieves both effective device discovery and extended communication range simultaneously, resolving the contradiction between discovery efficiency and communication range.
2Productivity
If discovery window parameters are optimized for higher frequency bands, then device discovery efficiency is improved, but power consumption increases for low-power devices
Solution Approach 1:
The patent segments discovery windows into multiple smaller intervals rather than using single long intervals. This segmentation allows low-power devices to wake up periodically for brief discovery periods, then return to sleep mode, significantly reducing overall power consumption while maintaining effective device discovery through multiple sampling points.
Solution Approach 2:
The patent implements periodic discovery window intervals tailored for Sub 1 Gigahertz propagation characteristics. By optimizing the periodicity to match the band's longer wavelength and propagation time, the system achieves reliable device discovery while minimizing the total active time of low-power devices, thus reducing power consumption.
3Adaptability or versatility
If standard discovery windows are used for Sub 1 Gigahertz band, then protocol compatibility is maintained, but communication performance deteriorates
Solution Approach 1:
The patent introduces dynamic adjustment of discovery window parameters based on the operating frequency band. The system can adaptively modify duration, interval, and segmentation configurations depending on whether it is operating in Sub 1 Gigahertz or higher frequency bands, thereby maintaining protocol compatibility while optimizing communication performance for each band's specific characteristics.
Data Source
AI summary
Some demonstrative embodiments include apparatuses, systems and/or methods of awareness networking communications over a Sub 1 Gigahertz Band. For example, an apparatus may include logic and circuitry configured to cause a wireless station to determine a timing of a plurality of Discovery Windows (DWs) according to a Neighbor Awareness Networking (NAN) Protocol; and communicate one or more NAN messages over a Sub 1 Gigahertz (GHz) (S1G) band during one or more of the DWs.