Mike, et al,
As Jeff implied about coverage (and costs), with WiMAX it is all about
diversity so let me try to explain it a bit. It is not so simple as one
AP or two. In WiMAX you have IDUs and ODUs. In our case, one IDU can
serve many different configurations since it have 4 ports on the IDU and
supports up to 4th order diversity. So here is what each level of
diversity actually looks like in terms of configuration:
Single channel, no diversity -
This is the basic configuration and the one WISPs have always deployed.
Each AU-IDU connects to one ODU serving a single sector with a
directional antenna.
AU/IDU ODU Sector
+++++ +++++ +++++
+ + --+ O +--- + +
+ O ---/ + + \---+ O +
+ O + + O + + +
+ O + +++++ + +
+ O + +++++
+ +
+++++
Multiple channels per AU, no diversity - Can be like above or two or
three or four channels. Example shows four channels -
AU/IDU ODU 1 Sector antenna 1
Ch.1-4
+++++ +++++ +++++
+ + --+ O +--- + +
+ O ---/ + + \---+ O +
+ O +-\ + O + + +
+ O +-\\ +++++ + +
+ O +-\\\ +++++
+ + \\\--ODU 2----sector antenna 2
+++++ \\
\\--ODU 3----sector antenna 3
\
\--ODU 4----sector antenna 4
Second order diversity - One sector with space diversity. Two AU-ODU
channels 1 & 2. Same frequency and transmit power. Same AU-IDU share a
common MAC and modem.
AU/IDU ODU 1 Antenna 1
Ch.1&2 Sector 1
+++++ +++++ +++++
+ + --- O ---- + +
+ O ---/ + + \---- O +
+ O --\ + O + + +
+ O + \ +++++ + +
+ O + \ +++++
+ + \ both sectors cover same area
+++++ \ )))))) so both function as part of one
sector \ ODU 2 Antenna 2
\Sector 1
\+++++ +++++
- O ---- + +
+ + \---- O +
+ O + + +
+++++ + +
+++++
Fourth order diversity - Single sector. Single AU-IDU with 4 ODUs. Space
and polarization diversities using dual polarization slant antennas.
Channels 1 and 2 form one pair, channels 3 and 4 form one pair. Same
frequency and transmit power are set for all four ODUs. Common MAC and
modem.
AU/IDU ODU 1 Antenna 1
Ch.1-4 Sector 1 (dual pole)
+++++ +++++ +++++
+ + --- O ---- + +
+ O ---/ + + \---------- O +
+ O --\ + O + /--- O +
+ O --\\ +++++ / + +
+ O --\\\ / +++++ both dual pole
antennas
+ + \\\--ODU 2/Sector 2 Antenna 2 ))))) function together in
a
+++++ \\ (dual pole) single sector
\\--ODU 3/Sector 1---\ +++++
\ \ + +
\--ODU 4/Sector 2--\ \-- O +
\--- O +
+ +
+++++
Patrick Leary
AVP, Market Development
Alvarion, Inc.
o: 650.314.2628
c: 760.580.0080
[EMAIL PROTECTED]
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Mike Hammett
Sent: Tuesday, April 22, 2008 12:18 PM
To: WISPA General List
Subject: Re: [WISPA] Future
Anyone doing a 20 MHz channel?
Would that be enough capacity to allow for typical oversubscription on
say a
10 meg client?
What does it cost to get the first AP up ($5k, $15k, $50k)?
What does it cost to get additional APs up ($2k, $10k, $30k)?
----------
Mike Hammett
Intelligent Computing Solutions
http://www.ics-il.com
----- Original Message -----
From: "Jeff Booher" <[EMAIL PROTECTED]>
To: "WISPA General List" <[email protected]>
Sent: Tuesday, April 22, 2008 12:46 PM
Subject: Re: [WISPA] Future
> Chuck,
>
> Airspan / Aperto are both shipping 5x Ghz wimax products.
>
> Throughput is about 26mb peak for the Airspan product on 10mhz
> channels, and 22mb on the Aperto product in 7mhz channels. Also, there
> are ways to get around the exclusion zones, if you find out who the
> licenseholders are.
>
>
>
> -
>
> Jeff
>
> On Apr 21, 2008, at 1:20 PM, CHUCK PROFITO wrote:
>
>> Patrick,
>> Excellent point on channel sizes!
>> So if WiMAX is released in unlicensed frequencies of 900, 2.4? ,
>> 5.X, 3.6
>> (we are in a big exclusion zone.)
>> I imagine if you deployed in 2.4 it would smoke the home routers.
>> Would our capacity double for the same channel sizes?
>> Would it use the same channel sizes?
>> Would it help with range and capacity?
>> Will WiMax help tree penetration? Can Physics be bent?
>> In legacy deployments, would or could it improve our back hauls?
>>
>>
>> Chuck Profito
>> 209-988-7388
>> CV-ACCESS, INC
>> [EMAIL PROTECTED]
>> Providing High Speed Broadband
>> to Rural Central California
>> -----Original Message-----
>> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
>> On
>> Behalf Of CHUCK PROFITO
>> Sent: Monday, April 21, 2008 10:01 AM
>> To: 'WISPA General List'
>> Subject: Re: [WISPA] Future
>>
>> Patrick,
>> If not 70 miles and 30 mbps,
>> what are the real numbers on the fixed, for say:
>> 2 miles los?
>> 2 miles wooded?
>> 5 m los?
>> 5 m nlos?
>> 10 m los?
>> 10 m nlos
>> ??
>> Is this a fair question?
>>
>> Chuck Profito
>> 209-988-7388
>> CV-ACCESS, INC
>> [EMAIL PROTECTED]
>> Providing High Speed Broadband
>> to Rural Central California
>> -----Original Message-----
>> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
>> On
>> Behalf Of Patrick Leary
>> Sent: Monday, April 21, 2008 9:14 AM
>> To: WISPA General List
>> Subject: Re: [WISPA] Future
>>
>> The press has been wrong most of time, causing companies like ours
>> great
>> headaches. The stupid "70 miles 30 mbps" was the most absurd bit of
>> hyperbole that the press picked up and repeated endlessly.
>> Meanwhile, Mo
>> Shakouri (the Marketing VP of the WiMAX Forum and an Alvarion exec)
>> was
>> trying to dispel that at every turn (I sat in on many of his public
>> sessions). Others of us also were trying to correct the
>> expectations. I
>> did it in numerous analyst and press interviews.
>>
>> WiMAX is also doing well overseas, especially in Asia. WiMAX's
>> greatest
>> near term challenge in the U.S. is Sprint.
>>
>> Patrick
>>
>> -----Original Message-----
>> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
>> On
>> Behalf Of Chuck McCown
>> Sent: Monday, April 21, 2008 8:57 AM
>> To: WISPA General List
>> Subject: Re: [WISPA] Future
>>
>> WiMax as hyped by the press is dead. No?
>>
>> ----- Original Message -----
>> From: "Patrick Leary" <[EMAIL PROTECTED]>
>> To: "WISPA General List" <[email protected]>
>> Sent: Monday, April 21, 2008 9:52 AM
>> Subject: Re: [WISPA] Future
>>
>>
>>> I agree with the vast majority of what Chuck says here and only
>>> partially disagree even on the WiMAX part (though I disagree
strongly
>> on
>>> the "WiMAX is dead" part -- we have sold over $100M to date of it).
>>>
>>> The main takeaway with Chuck's post is that WISPs will have strong
>>> opportunities for a long time to come, and I agree 110%.
>>>
>>> Patrick
>>>
>>> -----Original Message-----
>>> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
>> On
>>> Behalf Of Chuck McCown - 2
>>> Sent: Sunday, April 20, 2008 9:26 PM
>>> To: WISPA General List
>>> Subject: Re: [WISPA] Future
>>>
>>> WiMAX was dead, is dead and will remain dead. OK, not factually
true
>>> but
>>> emotionally true. The cell companies will use WiMax frequencies
and
>>> technologies but they will be a premium service and not well suited
>>> to
>>> compete with us for point to multi point fixed wireless. It will
>> never
>>> live
>>> up to the hype.
>>>
>>> All the cell data technologies will remain premium for folks on the
>> go.
>>> Cell does not want to squander the bandwidth to go after the value
>>> driven
>>> customer that love us so much. Cell is and will not be value leader
>> for
>>>
>>> fixed wireless. technologies.
>>>
>>> 700 MHz is just not going to be used for anything other than more
>>> cell
>>> spectrum. The bands are narrow. Good for phone and limited amounts
>> of
>>> data. Great propagation. Problem with 700 MHz is that the size of
>>> the
>>> antenna will be problematic for really small cell phones. Less gain
>>> than
>>> the current 900 and 1800 antennas for the same physical sizes. Also
>>> there
>>> will be a few years of implementation due to moving some existing TV
>>> stations. And some of them are not moving for some reason. I don't
>>> know if
>>> they get a special dispensation or what.
>>>
>>> All ILECs will continue to build out with fiber to the home. That
>> will
>>> erode market share for WISPs in some areas. This is a slow and
>> capital
>>> intensive process so no reason to get jumpy on that. Plus many
folks
>>> prefer
>>> to deal with us vs a large public traded company. Superior customer
>>> service
>>> and support will always retain the customer.
>>>
>>> The cable companies will continue to shoot themselves in the foot
and
>>> drop
>>> the balls. They are sooo freaked out by the erosion of customer
base
>>> from
>>> DirecTV that they are not managing the IP side of the house as well
>>> as
>>> they
>>> could. They will continue to get in a tighter and tighter cash
>>> situation
>>> from satellite TV pressing from one side and the ILEC FTTH (and us)
>> from
>>> the
>>> other.
>>>
>>> In the meantime, we add VOIP, computer repair, data backup, web
>>> development,
>>> OTA HDTV install and maint, etc as cross sell and up sell
>> opportunities.
>>>
>>> All of us can offer triple play if we team up with DirecTV or OTA
>> HDTV.
>>> OTA
>>> HDTV is a wonderful opportunity for the next 18 months for the value
>>> conscious customer. Stock UHF TV antennas and converter boxes and
>> help
>>> folks get their analog TVs converted over. Less work than a WISP
>>> install
>>> and you will lock in the customer even more with superior customer
>>> service.
>>> You can rent them the gear for $5/month and make it a low cost
>> package.
>>>
>>> In 5 years hopefully your investment will be a cash cow and you will
>>> ride
>>> this horse until it dies. Perhaps other technologies will come
along
>>> for us
>>> to deploy but I see our segment strong for the next 5 years. In 10
>>> years,
>>> if we have not diversified, we will probably be hurting.
>>>
>>> Oh, and satellite ISP will never do much. Pesky physics.
>>>
>>> ----- Original Message -----
>>> From: "Mike Hammett" <[EMAIL PROTECTED]>
>>> To: "WISPA List" <[email protected]>
>>> Sent: Sunday, April 20, 2008 6:44 PM
>>> Subject: [WISPA] Future
>>>
>>>
>>>> What do you see as the future of our industry over the next 5
years?
>>>>
>>>> AT&T is expanding U-Verse (will this be available outside of town?)
>>>> Verizon is expanding FiOS (will this be available outside of town?)
>>>> Cable will be using DOCSIS 3
>>>> 3G will gain more steam
>>>> WiMAX will have larger and larger shares of the market
>>>> 700 MHz will be in use possibly for data communications by the big
>>> guys
>>>>
>>>>
>>>> My banker asked me, so I figured I'd see what other's opinions are.
>>>>
>>>> My thought is that the big guys mentioned above will continue to
>> avoid
>>> the
>>>> niche that we currently serve and we'll be able to provide better
>>> services
>>>> with more spectrum (5.4 GHz, additional 2.5 GHz, 3.6 GHz, possibly
>>>> TV
>>>> white spaces) and WiMAX.
>>>>
>>>>
>>>> ----------
>>>> Mike Hammett
>>>> Intelligent Computing Solutions
>>>> http://www.ics-il.com
>>>>
>>>>
>>>>
>>>>
>>>
>>
------------------------------------------------------------------------
>>> --------
>>>> WISPA Wants You! Join today!
>>>> http://signup.wispa.org/
>>>>
>>>
>>
------------------------------------------------------------------------
>>> --------
>>>>
>>>> WISPA Wireless List: [email protected]
>>>>
>>>> Subscribe/Unsubscribe:
>>>> http://lists.wispa.org/mailman/listinfo/wireless
>>>>
>>>> Archives: http://lists.wispa.org/pipermail/wireless/
>>>>
>>>
>>>
>>>
>>>
>>
------------------------------------------------------------------------
>>> --------
>>> WISPA Wants You! Join today!
>>> http://signup.wispa.org/
>>>
>>
------------------------------------------------------------------------
>>> --------
>>>
>>> WISPA Wireless List: [email protected]
>>>
>>> Subscribe/Unsubscribe:
>>> http://lists.wispa.org/mailman/listinfo/wireless
>>>
>>> Archives: http://lists.wispa.org/pipermail/wireless/
>>>
>>>
>>>
>>>
>>
************************************************************************
>>> ************
>>>
>>> This footnote confirms that this email message has been scanned by
>>>
>>> PineApp Mail-SeCure for the presence of malicious code, vandals &
>>> computer viruses(190).
>>>
>>>
>>
************************************************************************
>>> ************
>>>
>>>
>>>
>>>
>>>
>>>
>>
************************************************************************
>>> ************
>>>
>>> This footnote confirms that this email message has been scanned by
>>>
>>> PineApp Mail-SeCure for the presence of malicious code, vandals &
>>> computer viruses(43).
>>>
>>>
>>
************************************************************************
>>> ************
>>>
>>>
>>>
>>>
>>>
>>>
>>
************************************************************************
>> ************
>>> This footnote confirms that this email message has been scanned by
>>> PineApp Mail-SeCure for the presence of malicious code, vandals &
>> computer
>>> viruses(84).
>>>
>>
************************************************************************
>> ************
>>>
>>>
>>>
>>>
>>>
>>
------------------------------------------------------------------------
>> --------
>>> WISPA Wants You! Join today!
>>> http://signup.wispa.org/
>>>
>>
------------------------------------------------------------------------
>> --------
>>>
>>> WISPA Wireless List: [email protected]
>>>
>>> Subscribe/Unsubscribe:
>>> http://lists.wispa.org/mailman/listinfo/wireless
>>>
>>> Archives: http://lists.wispa.org/pipermail/wireless/
>>>
>>>
>>
>>
>>
>>
------------------------------------------------------------------------
>> --------
>> WISPA Wants You! Join today!
>> http://signup.wispa.org/
>>
------------------------------------------------------------------------
>> --------
>>
>> WISPA Wireless List: [email protected]
>>
>> Subscribe/Unsubscribe:
>> http://lists.wispa.org/mailman/listinfo/wireless
>>
>> Archives: http://lists.wispa.org/pipermail/wireless/
>>
>>
>>
>>
************************************************************************
>> ************
>>
>> This footnote confirms that this email message has been scanned by
>>
>> PineApp Mail-SeCure for the presence of malicious code, vandals &
>> computer viruses(190).
>>
>>
************************************************************************
>> ************
>>
>>
>>
>>
>>
>>
************************************************************************
>> ************
>>
>> This footnote confirms that this email message has been scanned by
>>
>> PineApp Mail-SeCure for the presence of malicious code, vandals &
>> computer viruses(43).
>>
>>
************************************************************************
>> ************
>>
>>
>>
>>
>>
>>
************************************************************************
****
>> ********
>> This footnote confirms that this email message has been scanned by
>> PineApp Mail-SeCure for the presence of malicious code, vandals &
>> computer
>> viruses(84).
>>
************************************************************************
****
>> ********
>>
>>
>>
>>
>>
------------------------------------------------------------------------
----
>> ----
>> WISPA Wants You! Join today!
>> http://signup.wispa.org/
>>
------------------------------------------------------------------------
----
>> ----
>>
>> WISPA Wireless List: [email protected]
>>
>> Subscribe/Unsubscribe:
>> http://lists.wispa.org/mailman/listinfo/wireless
>>
>> Archives: http://lists.wispa.org/pipermail/wireless/
>>
>>
>>
>>
------------------------------------------------------------------------
----
>> ----
>> WISPA Wants You! Join today!
>> http://signup.wispa.org/
>>
------------------------------------------------------------------------
----
>> ----
>>
>> WISPA Wireless List: [email protected]
>>
>> Subscribe/Unsubscribe:
>> http://lists.wispa.org/mailman/listinfo/wireless
>>
>> Archives: http://lists.wispa.org/pipermail/wireless/
>>
>>
>>
>>
------------------------------------------------------------------------
--------
>> WISPA Wants You! Join today!
>> http://signup.wispa.org/
>>
------------------------------------------------------------------------
--------
>>
>> WISPA Wireless List: [email protected]
>>
>> Subscribe/Unsubscribe:
>> http://lists.wispa.org/mailman/listinfo/wireless
>>
>> Archives: http://lists.wispa.org/pipermail/wireless/
>
>
>
>
------------------------------------------------------------------------
--------
> WISPA Wants You! Join today!
> http://signup.wispa.org/
>
------------------------------------------------------------------------
--------
>
> WISPA Wireless List: [email protected]
>
> Subscribe/Unsubscribe:
> http://lists.wispa.org/mailman/listinfo/wireless
>
> Archives: http://lists.wispa.org/pipermail/wireless/
>
------------------------------------------------------------------------
--------
WISPA Wants You! Join today!
http://signup.wispa.org/
------------------------------------------------------------------------
--------
WISPA Wireless List: [email protected]
Subscribe/Unsubscribe:
http://lists.wispa.org/mailman/listinfo/wireless
Archives: http://lists.wispa.org/pipermail/wireless/
************************************************************************
************
This footnote confirms that this email message has been scanned by
PineApp Mail-SeCure for the presence of malicious code, vandals &
computer viruses(190).
************************************************************************
************
************************************************************************
************
This footnote confirms that this email message has been scanned by
PineApp Mail-SeCure for the presence of malicious code, vandals &
computer viruses(42).
************************************************************************
************
************************************************************************************
This footnote confirms that this email message has been scanned by
PineApp Mail-SeCure for the presence of malicious code, vandals & computer
viruses(84).
************************************************************************************
--------------------------------------------------------------------------------
WISPA Wants You! Join today!
http://signup.wispa.org/
--------------------------------------------------------------------------------
WISPA Wireless List: [email protected]
Subscribe/Unsubscribe:
http://lists.wispa.org/mailman/listinfo/wireless
Archives: http://lists.wispa.org/pipermail/wireless/
