Hello,
I am all for it. You have to pick the right equipment/spectrum for
the right tower/area. I have at least 10 maybe more towers that have about
1000+ potential customers within about 1.5 miles of the tower. It would
allow me to use the current 2.4, 5.2-5.8 on other towers for the clients I
could not get or at least have less AP in those bands on these towers.
At best guess what would be the range of the spectrum?
Thanks
-----Original Message-----
From: members-boun...@wispa.org [mailto:members-boun...@wispa.org] On Behalf
Of Brian Webster
Sent: Monday, February 09, 2009 1:08 PM
To: WISPA General List; Motorola Canopy List; memb...@wispa.org
Subject: Re: [WISPA Members] [WISPA] Thinking out of the box ... Gigabit
PTMP? Possible solution that could be done today.
So I have been thinking about this idea and here's what could be done.
Disclaimer: This won't be sub $100 CPE and it won't scale economically for
rural areas. This is metro market high customer density stuff.
The 24 GHz band has 250 MHz of spectrum available as unlicensed (available
today).
It is designated for PTP.
Navini and SkyPilot have successfully won arguments with the FCC to get
their multipoint systems certified as PTP using logic that only one client
talks to the base at one time.
The JRC system is TDD and even more able to make the argument that only one
base and CPE are talking on any frequency at one time.
The JRC system can deliver up to 46 mb throughput per channel. Channels are
26 MHz wide, so you could easily build up a 6 sector or more system.
Each JRC base station/sector can support 239 CPE's.
The product is available today and would only have to be moved down from the
26 GHz they use it on in Japan (JRC has already stated they can do this).
The challenge is getting the units FCC certified for use in the 24 GHz band
as a PTP system.
If a person or group hired the lab/lawyer who got Navini and SkyPilot
approved they should have a good shot at getting this done.
The FCC has already set precedent to do this.
TDD is more easily argued that it is a PTP system on any given frequency at
any given time.
24 GHz is a signal that is easily contained and manageable from a noise
perspective.
There are no consumer level devices operating in this band.
This band is available today, no waiting for public policy and political
whims to make spectrum available. This would be innovation. It could be done
so fast that pundits or competitors could not use their political influence
to thwart the effort. This could happen before they knew what hit them.
Trees and buildings will be an issue as is distance with the propagation,
but where else can you try to make something like this work today with
already developed product and 250 MHz of spectrum? It's certainly an idea
worth considering and could compete for high bandwidth customers in metro
markets against cable and fiber.
You decide, is the glass half empty or half full?
http://www.jrc.co.jp/eng/product/26g_fwa/index.html
Thank You,
Brian Webster
www.wirelessmapping.com <http://www.wirelessmapping.com>
-----Original Message-----
From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org]on
Behalf Of Mike Hammett
Sent: Monday, February 09, 2009 1:38 PM
To: WISPA General List
Subject: Re: [WISPA] Thinking out of the box ... Gigabit PTMP?
Having that many GHz of spectrum would be nice. However, I would expect it
to be limited to industrial parks or anywhere where foliage is not present.
http://en.wikipedia.org/wiki/Local_Multipoint_Distribution_Service
I would imagine that the cost to develop a new line of technology (or the
original 802.16, which was meant for 10 GHz and up) would be quite
expensive. Given the small range for that high priced gear, it's probably
more cost effective to just bury fiber.
Nextlink (XO) is the major LMDS holder in the US. I'm not sure who else
has spectrum.
I'd look at these sites as well...
http://www.lmdswireless.com/index.php
https://www.lmdsxchange.com/
-----
Mike Hammett
Intelligent Computing Solutions
http://www.ics-il.com
--------------------------------------------------
From: "Gino Villarini" <g...@aeronetpr.com>
Sent: Sunday, February 08, 2009 10:34 AM
To: "Motorola Canopy User Group" <motor...@wispa.org>
Cc: "WISPA General List" <wireless@wispa.org>
Subject: [WISPA] Thinking out of the box ... Gigabit PTMP?
> Today i have been pondering the idea to provide a wireless alternative
> to FTTH...
>
> At least a short range (up to 1 mile) 100 - 500 mbps wireless PTMP
> system to the home to provide triple play services.
>
> With todays current products, I ll say it cant be done... but is there
> an alterenative?
>
> Couple of ideas came in to my mind ...
>
> Rebirth of LMDS? AFAIK LMDS has not had great success on the states,
> spectrum was bidded, some gear was tested... no big networks were built
> ...but all this was almost 10 years ago, with today technology could a
> cost effective platform be developed to provide GIgabit PTMP on LMDS?
> MIMO Radio + 256qam + big spectrum means big bandwidth
>
> PTMP 24 ghz? Could a PTMP UL 24 ghz be developed? upconvert and bond
> multiple 802.11n based links with a polling mac?
>
> Anyone would like to add something?
>
>
> Gino A. Villarini
> g...@aeronetpr.com
> Aeronet Wireless Broadband Corp.
> tel 787.273.4143 fax 787.273.4145
>
>
>
>
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