Verizon Wireless Targets LTE Build Out for 2009

Sure. I remember when Sprint was dead set on implementin EV-DV rather than EV-DO technology. They lost a bit of market share to Verizon before deciding that even though EV-DV would be better theoretically...it was not worth the wait. But...now the script is flipped. VZW cannot afford to fall behind Sprint and Wi-Max so it is either get this LTE up and running as soon as possible or adopt Wi-Max. I remember when VZW first launched EV-DO in San Diego and Washington D.C. and everyone else said "So what?" That's where Clearwire is now. Sure Wi-Max is not widely available, but it is out there which is more than we can say about LTE now. This move is not unexpected. I would say it is about time...

mosherkl said:
It may penetrate better, but that doesn't help the people in areas that have poor coverage outdoors. And it's only a difference of ~150 MHz between 700 and Cellular, compared to the ~1 GHz difference between Cellular and PCS. The 700 signal won't be the far reaching, all encompassing blessing a lot of people think it will, though it will certainly help out some current marginal coverage areas.

Besides, depending on the plans VZW has for their femtocells, I might be inclined to drop my plan down as low as I can go because I could get unlimited minutes on the femtocell for much cheaper.

You do bring up a good point about the signal penetration. From what I read about the 800 band, the powe...
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The open 700 MHz C Block VZW won spans the entire continental US and Hawaii. That's pretty much their entire coverage area.

if that is true then i guess i stand corrected on that point

stevelvl said:
if that is true then i guess i stand corrected on that point

It's true. They and Google bid on the upper 700 C block. I need to be specific, as AT&T has the lower 700 C block, which is not part of the open access. Also, the upper 700 C Block is regional, and Verizon acquired all 6 on the mainland (similar to what T-Mobile did with the AWS D, E, & F blocks, but they also went for Alaska & Puerto Rico as well) & Hawaii. They however avoided Alaska & Puerto Rico for some reason. So no licenses of any type up & down there.

Another thing, the upper 700 C block is built out by population of each EA (or upper 700 B block), and not geographical area, like the upper 700 A & B blocks are. So ...
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I plan on Verizon buying out CDMA networks in Alaska soon.

Alaskan Digitell (sp?) maybe.

The only ? I have is are you saying cell towers have 25mi range?!!?

Jayshmay said:
The only ? I have is are you saying cell towers have 25mi range?!!?

To answer your question yes and no.

A cell phone has a maximum range of 8 miles from a cdma tower. The reason is that in accordance with fcc law they can only emit so much power threw there radio. Femtocell is different the amount of power it can emit threw its radio is drastically higher since it is a fixed radio there for then range of femtocell is 25 miles.

The real truth is femtocell does not need a tower to work. However, femtocell needs a tower for location based services in order to be e911 compliant.

You mentioned CDMA, does what you say also apply to GSM?

Jayshmay said:
You mentioned CDMA, does what you say also apply to GSM?

I don't know if it does or not. I have only worked with CDMA on the network side.

Jayshmay said:
You mentioned CDMA, does what you say also apply to GSM?

Single timeslot GSM is limited to 35 km (~22 mi) range. Beyond that distance, speed of light propagation is not fast enough for the mobile to base signal to arrive at the base w/in the assigned single timeslot.

This is one reason why CDMA1x is superior to GSM for deployment in vast, open rural areas.

AJ

Hmm, interesting. Thanks for getting back to me.

Call me naive and I am new to understanding Wireless phone technology but it does make sense that why Verizon has been pushing FIOS deployment every where in the US. So they can support this technology LTE and Femtocell on all markets. From what I have been reading pn this link. And me as a subscriber/consumer I have heard on several occasions from Verizon and Verizon Wireless that there intentions is to bring the to companies closer together or into one business offering several services. Plus if you have FIOS like I do it is just damn good!!!!!! 😁

http://mobileinternetreporter.wordpress.com/category ... »

The previous post contains much inaccurate info.

CDMA mobiles can have much greater range than eight miles from the nearest cell site. Living & traveling west of the Mississippi, I frequently use CDMA1x 850 & CDMA1x 1900 cell sites at ranges greatly surpassing eight miles.

Range is limited only by the PN timing window set at the cell site and path loss on both the forward link & reverse link. True, reverse link max amplifier power is 200 mW (+23 dBm) for most CDMA handheld mobiles. Even w/ a unity gain (0 dBi) antenna, 200 mW is more than sufficient power to exceed eight miles over open terrain.

Additionally, 200 mW is by no means an FCC restriction. For Cellular 850 MHz & PCS 1900 MHz mobile ERP, actual FCC regulations permit 7...
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WiWavelength said:

Finally, a femtocell typically has a max power output similar to that of a handheld mobile and a range of just a few hundred feet, certainly not 25 miles. For example, the Sprint AIRAVE has max power output of only 50 mW (+17 dBm).

AJ

I think you missed what i was saying. the femtocell unit has to be within 25 miles of a tower to work. the femtocell unit has a range its self of roughly that of wifi.

stevelvl said:
the femtocell unit has to be within 25 miles of a tower to work.

No. You could be talking about a repeater. A repeater requires at least minimal native signal in order to amplify it. But a femtocell w/ IP backhaul does not, at least not necessarily.

The Sprint AIRAVE, for example, can operate anywhere that SPCS holds PCS 1900 MHz spectrum (i.e. the contiguous US, AK, HI, and PR), be that inside or well outside SPCS native footprint. The AIRAVE uses GPS to determine its current location. Using that location data, the AIRAVE deduces its current geographic market (MTA or BTA). From that geographic market, the AIRAVE confirms its current SPCS license(s) (PCS A, B, C, D, E, F). And, w/ ...
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From a technical perspective you are correct. From a legal perspective you are wrong.

The FCC mandates that all wireless services support location based services for e911 compliance. In order for femtocell to work the unit has to be within 25 miles of a cell site. Not to access the wireless network but to gain e911 information. That is how the femtocell service was designed.

stevelvl said:
From a technical perspective you are correct. From a legal perspective you are wrong.

The FCC mandates that all wireless services support location based services for e911 compliance. In order for femtocell to work the unit has to be within 25 miles of a cell site. Not to access the wireless network but to gain e911 information. That is how the femtocell service was designed.

The AIRAVE uses GPS for e911 compliance.

From the AIRAVE FAQ:

Why does the AIRAVE require Global Positioning System (GPS) technology?
Sprint AIRAVE uses GPS for network synchronization and device location
information required for 911.

And will you address why you erroneously stated that CDMA mobiles have...
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