TECHNOLOGY
A Fundamental Breakthrough
XtendWave’s technology is based on a fundamental physical layer technology that provides patented algorithms integrated into DSL microchips. Since XtendWave technology is media agnostic, it applies to copper, cable and wireless media, providing additional revenue and higher profits for carriers, equipment manufacturers, and chipmakers who incorporate XtendWave-enabled products. The technology achieves superior throughput and performance without relying on wire-bonding, power upgrades, compression, or other methods, although these techniques can be applied to XtendWave for further enhancement. The upgrade consists of substituting an XtendWave chip on each end of the loop—a simple modem and line card upgrade using the existing backplane.
• AFBM is a base-band technology
- Core functionality remains constant across multiple transmission media (wireless, cable, copper)
- Minimal changes at the interface; some configuration modifications
- Technology integrated into WDSL chipset
The Technology
By using a proprietary wavelet technology, Adaptive Filter Bank Modulation (AFBM), Xtendwave is able to provide incremental broadband coverage in two ways: Extended reach to service previously untapped markets, and higher throughput over shorter distances for trunking and other industry applications. Current extended reach tests over actual copper loops show greater than 1.5Mbps over 18,000 feet—a dramatic improvement over current DSL. The intellectual property is protected by three awarded patents on the core technology with 17 utility patents and 14 provisional patents pending.
• Wavelet Advantages
- The spectrogram of a chip is shown in the top illustration as an example of a source signal to be sent over a channel.
- DSL converts the signal by Fourier techniques into a representation illustrated by the spectrogram shown in the lower right hand illustration. Clearly, the energy is dispersed throughout the frequency/time space.
- Xtendwave’s AFBM technology “packs” the energy in a more spectrally efficient manner as shown in the lower left hand illustration. This results in higher noise immunity and therefore more bits per second per unit of bandwith.
XtendWave’s technology is based on a fundamental physical layer technology that provides patented algorithms integrated into DSL microchips. Since XtendWave technology is media agnostic, it applies to copper, cable and wireless media, providing additional revenue and higher profits for carriers, equipment manufacturers, and chipmakers who incorporate XtendWave-enabled products. The technology achieves superior throughput and performance without relying on wire-bonding, power upgrades, compression, or other methods, although these techniques can be applied to XtendWave for further enhancement. The upgrade consists of substituting an XtendWave chip on each end of the loop—a simple modem and line card upgrade using the existing backplane.
• AFBM is a base-band technology- Core functionality remains constant across multiple transmission media (wireless, cable, copper)
- Minimal changes at the interface; some configuration modifications
- Technology integrated into WDSL chipset
The Technology
By using a proprietary wavelet technology, Adaptive Filter Bank Modulation (AFBM), Xtendwave is able to provide incremental broadband coverage in two ways: Extended reach to service previously untapped markets, and higher throughput over shorter distances for trunking and other industry applications. Current extended reach tests over actual copper loops show greater than 1.5Mbps over 18,000 feet—a dramatic improvement over current DSL. The intellectual property is protected by three awarded patents on the core technology with 17 utility patents and 14 provisional patents pending.
• Wavelet Advantages- The spectrogram of a chip is shown in the top illustration as an example of a source signal to be sent over a channel.
- DSL converts the signal by Fourier techniques into a representation illustrated by the spectrogram shown in the lower right hand illustration. Clearly, the energy is dispersed throughout the frequency/time space.
- Xtendwave’s AFBM technology “packs” the energy in a more spectrally efficient manner as shown in the lower left hand illustration. This results in higher noise immunity and therefore more bits per second per unit of bandwith.
