[opendtv] Re: TV Technology: FCC OK’s First Unlicensed LTE in 5 GHz
- From: Craig Birkmaier <brewmastercraig@xxxxxxxxxx>
- To: opendtv@xxxxxxxxxxxxx
- Date: Sat, 25 Feb 2017 09:04:53 -0500
On Feb 24, 2017, at 11:08 PM, Albert Manfredi <albert.e.manfredi@xxxxxxxxxxx>
wrote:
So Craig, do you see how WiFi is staying up above the original 2.4 GHz band,
for the newer and faster variants? Do you see them looking for UHF spectrum?
My 802.11n also only selects the 5 GHz band. In fact, even WiFi is looking at
10s of GHz spectrum for the future.
Bert. Do you understand that different spectrum bands have characteristics that
allow for differentiated services?
Wi-Fi is optimized to operate over very short distances; this allows for very
affordable wireless networks in homes and businesses, and extensive spectral
reuse. Obviously Wi-Fi could operate in lower frequency bands, but the
propagation characteristics are problematic as it relates to "cell" size and
interference. Furthermore, when the FCC allocated unlicensed spectrum for
Wi-Fi, the only unallocated spectrum was at higher frequencies that were not
being used, or were underutilized because of the technical challenges
associated with these higher frequencies.
As we have seen, technical innovation has made it possible to increase the
spectrum available for Wi-Fi; now it is enabling a new layer of cellular
services (both licensed and unlicensed) for short range wireless data services.
None of this has any relationship to other layers of the cellular
infrastructure using frequency bands with appropriate characteristics for
medium and low density cellular deployments that operate over distances measure
in miles rather than feet.
We are talking about wireless BROADBAND service, not just any old wireless
services. To create those wide channels, you need the higher frequency bands.
Nobody is arguing about the efficiency of wide channels versus narrow channels
that eat up spectrum with guard bands and other overhead. But the reality is
that the cellular infrastructure has been evolving for decades, and there is
little reason to stop using the existing infrastructure, even as we add more
capacity with tiny cells operating at higher frequencies. And with respect to
the 600 MHz band, the telcos will likely use it to deliver streaming media
services with low density cells.
Bottom line, the Internet, and by extension wireless data services including
cellular and Wi-Fi, is a network of networks, each optimized for specific
applications and/or operating environment.
Regards
Craig
Other related posts:
- » [opendtv] TV Technology: FCC OK’s First Unlicensed LTE in 5 GHz- Manfredi, Albert E
- » [opendtv] Re: TV Technology: FCC OK’s First Unlicensed LTE in 5 GHz- Craig Birkmaier
- » [opendtv] Re: TV Technology: FCC OK’s First Unlicensed LTE in 5 GHz- John Shutt
- » [opendtv] Re: TV Technology: FCC OK’s First Unlicensed LTE in 5 GHz- Manfredi, Albert E
- » [opendtv] Re: TV Technology: FCC OK’s First Unlicensed LTE in 5 GHz- Craig Birkmaier
- » [opendtv] Re: TV Technology: FCC OK’s First Unlicensed LTE in 5 GHz- Ron Economos
- » [opendtv] Re: TV Technology: FCC OK’s First Unlicensed LTE in 5 GHz- Albert Manfredi
- » [opendtv] Re: TV Technology: FCC OK’s First Unlicensed LTE in 5 GHz - Craig Birkmaier
- » [opendtv] Re: TV Technology: FCC OK’s First Unlicensed LTE in 5 GHz- Manfredi, Albert E
- » [opendtv] Re: TV Technology: FCC OK’s First Unlicensed LTE in 5 GHz- Craig Birkmaier
- » [opendtv] Re: TV Technology: FCC OK’s First Unlicensed LTE in 5 GHz- Manfredi, Albert E
- » [opendtv] Re: TV Technology: FCC OK’s First Unlicensed LTE in 5 GHz- Craig Birkmaier
- » [opendtv] Re: TV Technology: FCC OK’s First Unlicensed LTE in 5 GHz- Manfredi, Albert E
- » [opendtv] Re: TV Technology: FCC OK’s First Unlicensed LTE in 5 GHz- Craig Birkmaier
- » [opendtv] Re: TV Technology: FCC OK’s First Unlicensed LTE in 5 GHz- Manfredi, Albert E
- » [opendtv] Re: TV Technology: FCC OK’s First Unlicensed LTE in 5 GHz- Craig Birkmaier
- » [opendtv] Re: TV Technology: FCC OK’s First Unlicensed LTE in 5 GHz- Manfredi, Albert E
- » [opendtv] Re: TV Technology: FCC OK’s First Unlicensed LTE in 5 GHz- Craig Birkmaier
- » [opendtv] Re: TV Technology: FCC OK’s First Unlicensed LTE in 5 GHz- Manfredi, Albert E
- » [opendtv] Re: TV Technology: FCC OK’s First Unlicensed LTE in 5 GHz- Craig Birkmaier
- » [opendtv] Re: TV Technology: FCC OK’s First Unlicensed LTE in 5 GHz- Manfredi, Albert E
- » [opendtv] Re: TV Technology: FCC OK’s First Unlicensed LTE in 5 GHz- Craig Birkmaier
- » [opendtv] Re: TV Technology: FCC OK’s First Unlicensed LTE in 5 GHz- Manfredi, Albert E
- » [opendtv] Re: TV Technology: FCC OK’s First Unlicensed LTE in 5 GHz- Craig Birkmaier