Jeff, Can you or anyone expand on the 3.65 802.16d scalability topic? How is the GPS sync and channel reuse on your product? Is it merly to be able to tightly accomodate 3 BTS in 21 mhz? or can i reuse channels per site? Can i install 6 base stations with 3 channels? have Towers close by and reuse channels among them? Can I instal a 90 deg 4 sector tower with just 2 channels? Gino
________________________________ From: wireless-boun...@wispa.org on behalf of Jeff Booher Sent: Wed 4/22/2009 8:33 PM To: 'WISPA General List' Subject: Re: [WISPA] 3650Mhz and Wimax Vendors All, I work for a vendor ( Aperto ) so take this as you will. Like most vendors out there there are differences for everything. Veccima is a pico solution, which means that they are using a wavesat chipset on the base and CPE, so the major difference between veccima and alvarion and Aperto would be PPS, QOS, features, throughput, and scalablity. Aperto and Redline are pretty close in PPS, and alvarion and veccima are less, with Airspan and tranzeo having the lowest pps. From a cost perspective it looks like this: Pricing Redline : 1 ( 3 sector base 30k street, cpe 400 ) Alvarion: 2 (3 sector base 24k street, cpe 350-400 ) Airspan 3 ( 3 sector base 22k street, cpe 400-500 ) Aperto: 4 ( 3 sector base 20k street, cpe 280-400 ) Veccima: 5 (3 sector base 17k street, cpe 250-350) Tranzeo 6: ( 3 sector base 6k street, cpe 250-350 ) PPS / # of clients supported realistically 1. Aperto ( 30k pps / sector ) 2. Redline claims to be in the same range, but I havent verifed this 3. Alvarion ( 4000 pps ) 4. Veccima ( same range as alvarion ) 5. airspan ( low ) 6. Tranzeo ( only supports 30 clients ) Throughput: Almost everyone supports around 20mb / sec on a 7mhz channel, except alvarion which only supports 12mb on a 5mhz channel. The biggest factors to consider is PPS if you are doing voice or want to support a high # of subs per tower site, as you are limited to 3 channels in 3.65ghz. Price is a consideration, but the biggest issue with Tranzeo is they have no sync port on the base station so you could have interference issues when you try to deploy 3 on a tower ( you need 14mhz seperation if you don't have sync with wimax ) So in conclusion- want a cheap solution to support 30 subs of a single sector? Tranzeo is a good bet. Want something more carrier class? Redline or Aperto are a good fit. The final consideration is QOS. We recently were selected by a customer because of this and when they compared EVERYONE here we had by far the most Stable quality of service, and by far the most networking features. Aperto also holds several wimax patents in regards to QOS. Finally we also have multiple frequenices, like 5.8, 5.4, 4.9, 2.5 solutions so you wont be tied to one band. I think only Airspan supports 5ghz in Wimax, except for us. Jeff Booher Director of Sales, North America www.apertonet.com jboo...@apertonet.com jefftho...@fastmail.fm 24/7: 206-455-4950 This email may contain material that is confidential, privileged and/or work product for the sole use of the intended recipient. Any review, reliance or distribution by others without express permission is strictly prohibited. If you are not the intended recipient, please contact the sender and delete all copies. -----Original Message----- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Christopher Hair Sent: Wednesday, April 22, 2009 11:58 AM To: 'WISPA General List' Subject: Re: [WISPA] 3650Mhz and Wimax Vendors We're also looking to deploy Wimax at a couple of our tower locations to provide higher bandwidth to business customers and take a load off some of our 900 APs. One vendor we are looking at is Vecima Networks. Anyone out there using VistaMAX 3.65 GHz from Vecima. I would be very interested in some real world experiences with this vendor. Pro and cons... Thanks in Advance Chris What he said. :) Seriously I'm interested in actual experiences. Not moans and gripes and arm chair speculation. I'm very interested in deploying Wimax technology and want real world information and actual operator feedback. Michael Baird wrote: > Matt, > > I appreciate your perspective, but I've already read through the > archives and with Wimax technology what was valid yesterday might not > be valid today. I'm not interested in a holy war, we are certainly > going to deploy Wimax in the near future, I just want to set > expectations properly before we are mounting the gear on the tower, > and reading marketing info from Alverion/Tranzeo/Aperto certainly > doesn't help clear up the differences and advantages to the technology. > > Regards > Michael Baird >> Those of us operators who actually have experience in the field with >> the gear tend to avoid posting to threads about WiMAX because the >> threads quickly devolve. I suggest you read the archives of this >> mailing list. To summarize though; operators who use WiMAX like it >> and think the technology is actually different and better than what >> else is out there. The people who don't use WiMAX think it is >> overpriced and not particularly interesting. >> >> -Matt >> >> On Apr 22, 2009, at 1:41 PM, Charles Wyble wrote: >> >> >>> I'm looking for more operational experience and end user experience. >>> Certainly good technology contributes to that, but that isn't my >>> primary goal. >>> >>> >>> Michael Baird wrote: >>> >>>> It was interesting, but I was hoping for some more first hand >>>> experience reporting. Essentially the only explanation for improved >>>> range was a lower noise floor, which isn't a wimax thing, but a >>>> 3.65 thing. I think a lot of the 802.16d/e talk is market speak, >>>> I'm trying to get through that and establish technical reasons why >>>> one or the other is superior. >>>> >>>> Regards >>>> Michael Baird >>>> >>>>> So the recent thread on Wimax was quite interesting. I need to >>>>> read up on the different technologies involved. I believe that a >>>>> fixed deployment is sufficient for many many many needs and >>>>> markets (wireless local loop if you will). If people want >>>>> mobility/end user wireless they can hang an 802.11 AP off the >>>>> ethernet port of whatever CPE. Wimax directly to the end device >>>>> doesn't make much sense to me, in most markets and use cases. >>>>> Obviously if you are supporting a highly mobile workforce (say >>>>> public sector type stuff) then it makes a lot more sense. >>>>> >>>>> It got me thinking... if one was a new WISP entering an >>>>> un(der)served market, it seems that it would not make sense to >>>>> deploy standard >>>>> 802.11 >>>>> gear, but rather Wimax gear in 3650Mhz. Is this an accurate >>>>> assessment? >>>>> >>>>> One particular area that I'm targeting, doesn't have any broadband >>>>> available (other then 3g from Verzion). So they would need to >>>>> purchase CPE anyway, and it wouldn't be anything they could get >>>>> from Best Buy (DSL or Cable modem). >>>>> >>>>> I'm in the process of negotiating access to the excluded areas (in >>>>> Southern California), but it's been slow going. Once I gain access >>>>> it will open up many areas to some sorely needed competition. >>>>> >>>>> So who are the vendors in this space worth considering? >>>>> What are peoples experiences with the sales process (both pre and >>>>> post sales engineering) etc etc. >>>>> >>>>> >>>>> >>>>> ---------------------------------------------------------------------------- ---- >>>>> WISPA Wants You! 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