[opendtv] Re: Will Femtocells Save LTE?
- From: Craig Birkmaier <craig@xxxxxxxxx>
- To: opendtv@xxxxxxxxxxxxx
- Date: Fri, 29 Apr 2011 09:32:25 -0400
At 12:58 PM -0500 4/28/11, Manfredi, Albert E wrote:
Craig Birkmaier wrote:
So I explained that smartphones already try to move data traffic to
WiFi when it is available.
Give it up, Craig. All cellular "offloads" the RF traffic onto a
wired network. And femtocells, just like WiFi when used for this
purpose, just like the previous cell size reductions when going to
3G, are similar in that respect. They simply reduce cell size. There
is no discontinuity in the cellular model. It's just more of the
same.
Yes, femtocells are more of the same old telco business model. You
can pay a bit more to improve the quality of service at a fixed
location. And you pay to use the telco spectrum.
WiFi bypasses the telco networks.
Furthermore, it's false to say "you can only go so far with reducing
cell size." Taken to the extreme, your RF link would be something
like Bluetooth, very short range, with frequency reuse virtually
infinite. All of the heavy lifting is done by the cabled network,
and the RF link is only used for the last few inches.
For someone who believes that TV works fine with big sticks, I find
it rather amazing that you can argue so eloquently for spectral reuse
for the other guys.
The reality is that we need all of these solutions, including
broadcasting, if the infrastructure is designed properly.
Tiny cells are not the best solution when you are moving. They are
very useful for fixed locations.
It is possible to offer the equivalent services that TV broadcasters are
delivering today in half the current spectrum that is allocated.
I don't trust you on this. I keep reading these vague notions, and
their main purpose is to appease politicians. We have gone over
different schemes with their tradeoffs countless times, and
returning back to vague words is just not productive.
Nothing vague here Bert. The current BIG STICK TV broadcast approach
wastes huge swaths of spectrum. You cannot argue credibly that the
telcos can solve their spectrum issues with better spectrum reuse,
then say that broadcasters cannot do the same.
Regards
Craig
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