 | | iDen spectrum CNET says they will use the iDen band (800Mhz) for LTE. How much spectrum is there available? Enough for 4G speeds to many users at once? Am thinking it might only be 10Mhz. | |
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 |  MattAll noise, no signal.Premium
join:2003-07-20
Jamestown, NC
kudos:12 | Re: iDen spectrum said by xenophon:CNET says they will use the iDen band (800Mhz) for LTE. How much spectrum is there available? Enough for 4G speeds to many users at once? Am thinking it might only be 10Mhz.
They are deploying LTE on multiple frequencies and are taking a "What fits best?" approach. For example, you might only talk 800MHz when you are at great distance from a tower or when in-building penetration is needed, but your phone might switch to LTE on their 1800/1900MHz spectrum when you are outdoors.
Their ultimate goal is to have a single chip solution for CDMA/LTE/WiMax, which can talk across all their spectrum (800/900MHz, 1800/1900MHz, 2.5GHz) using any of their 3 technologies, (CDMA, LTE, WiMax), and allow your handset and the base station to decide which is the best combination of frequency and technology given your current situation.
Coupled with their frequency loss mitigation plans (moving the equipment onto the tower, unlike the picture above that still shows it at the base of the tower), overall, it's pretty brilliant. | |
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| |  Romney2012Defeat Obama 2012-Chg we can believe inPremium
join:2002-03-03
USA
kudos:4 | Re: iDen spectrum said by Matt:said by xenophon:CNET says they will use the iDen band (800Mhz) for LTE. How much spectrum is there available? Enough for 4G speeds to many users at once? Am thinking it might only be 10Mhz.
They are deploying LTE on multiple frequencies and are taking a "What fits best?" approach. For example, you might only talk 800MHz when you are at great distance from a tower or when in-building penetration is needed, but your phone might switch to LTE on their 1800/1900MHz spectrum when you are outdoors. Their ultimate goal is to have a single chip solution for CDMA/LTE/WiMax, which can talk across all their spectrum (800/900MHz, 1800/1900MHz, 2.5GHz) using any of their 3 technologies, (CDMA, LTE, WiMax), and allow your handset and the base station to decide which is the best combination of frequency and technology given your current situation. Coupled with their frequency loss mitigation plans (moving the equipment onto the tower, unlike the picture above that still shows it at the base of the tower), overall, it's pretty brilliant. Looks like Sprint wants to maximize coverage without having to actually expand to more locations, at least initially. If their deals with Clearwire and Lightspring actually bear fruit, their coverage can expand even more.
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| | |  tiger72SexaT duorPPremium
join:2001-03-28
Saint Louis, MO
kudos:1
 ·T-Mobile US
| Re: iDen spectrum said by Romney2012:Looks like Sprint wants to maximize coverage without having to actually expand to more locations, at least initially.
Yep - seems to be working for Verizon too. | |
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| | | MattAll noise, no signal.Premium
join:2003-07-20
Jamestown, NC
kudos:12 | said by Romney2012:Looks like Sprint wants to maximize coverage without having to actually expand to more locations, at least initially. If their deals with Clearwire and Lightspring actually bear fruit, their coverage can expand even more.
This was a key topic in their presentation. It allows for a massive improvement in cell site coverage due to antenna to cable losses mitigated by placing equipment higher up on the tower. | |
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| | | | Can't wait till they kick in this "Network Vision" thing. I would love to get rid of my Airwave, even though I don't pay a fee for it I still have to pay the taxes for it.
From what I have read, this could almost double their coverage. Or do I have it wrong? | |
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| |  AlcoholPremium
join:2003-05-26
Climax, MI
kudos:3 | Phones can't switch from LTE to wimax without dropping the call. I don't see this working out.
Clear is going to have to get rid of wimax.
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I found the key to success but somebody changed the lock. | |
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| | | tiger72SexaT duorPPremium
join:2001-03-28
Saint Louis, MO
kudos:1 Reviews:
·T-Mobile US
| Re: iDen spectrum said by Alcohol:Phones can't switch from LTE to wimax without dropping the call. I don't see this working out.
Clear is going to have to get rid of wimax.
Huh?
1. Why on earth would anyone want to switch from LTE to Wimax (or vice versa)? They're both data standards. LTE should ALWAYS be the preferred network in any scenario where LTE is available.
2. Since no voice traffic is getting routed over WiMax (doesn't support it) or LTE (no support for VoLTE yet either), but instead is routed over CDMA, where do you get this information that for whatever reason calls would get dropped?
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"What makes us omniscient? Have we a record of omniscience? ...If we can't persuade nations with comparable values of the merit of our cause, we'd better reexamine our reasoning."
-United States Secretary of Defense (1961-1968) Robert S. McNamara | |
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| | | MattAll noise, no signal.Premium
join:2003-07-20
Jamestown, NC
kudos:12 | said by Alcohol:Phones can't switch from LTE to wimax without dropping the call. I don't see this working out.
Clear is going to have to get rid of wimax.
WiMax is data only, not voice. LTE (actually VoLTE when it matures) or CDMA will be used for voice. | |
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| | | said by xenophon:CNET says they will use the iDen band (800Mhz) for LTE. How much spectrum is there available? Enough for 4G speeds to many users at once? Am thinking it might only be 10Mhz.
No it won't even be that because of freq. guards that would have to be put in place. They don't even have FCC approval for ESMR spectrum for LTE. They barely got a 1.27mhz paired pt.90 approval for CDMA/EVDO and haven't even implemented that. | |
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| | iansltx
join:2007-02-19
Golden, CO
kudos:2 Reviews:
 ·Comcast
| Re: iDen spectrum Are you sure that isn't implemented? I know that there are phones now (Evo 3D, maybe one or two others?) that have CDMA on the ESMR band.
But yeah, LTE on ESMR is going to be a bit of an issue. My expectation: CDMA with EvDO Rev. B on 800/1900, LTE on 1900/2500. | |
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| | | | | Re: iDen spectrum said by iansltx:Are you sure that isn't implemented? I know that there are phones now (Evo 3D, maybe one or two others?) that have CDMA on the ESMR band.
But yeah, LTE on ESMR is going to be a bit of an issue. My expectation: CDMA with EvDO Rev. B on 800/1900, LTE on 1900/2500.
Capable of, yes, equipments at the towers to support it, no. Unless there's some test network up on ESMR, The Evo 3D and the other few phones that are compatible with it are still connecting via their regular 1.9ghz network. | |
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| | | | iansltx
join:2007-02-19
Golden, CO
kudos:2 | Re: iDen spectrum My bet is that they have a test market out somewhere. | |
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| | | | | | | Re: iDen spectrum said by iansltx:My bet is that they have a test market out somewhere.
Its probably ready in some markets, but they aren't opening it for devices to connect to. So I guess that would be a test market? Hopefully it won't take 3-5 years to enable it nationally because they don't really have that long.
The PRL's are already out for the Evo 3D and are set to scan for 1X coverage on ESMR so hopefully we will see some digital action soon! | |
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| | | | | said by iansltx:Are you sure that isn't implemented? I know that there are phones now (Evo 3D, maybe one or two others?) that have CDMA on the ESMR band.
But yeah, LTE on ESMR is going to be a bit of an issue. My expectation: CDMA with EvDO Rev. B on 800/1900, LTE on 1900/2500.
Nope not yet, hopefully soon. They still haven't even come close to matching Nextel tower coverage down in the Southeast yet, but I think CDMA on ESMR will be integrated in solving that.
I don't know how well Rev.B would fit in ESMR because AFAIK they only have approval for 1 1xRTT slice and an EVDO slice at 1.27mhz and not the conventional 1.25, the rest is allocated for a guard band.
If they use *smart* antenna tech like Verizon is using in many markets, they can improve their existing PCS coverage greatly though and run Rev. B in that. | |
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| | | | iansltx
join:2007-02-19
Golden, CO
kudos:2 Reviews:
·Comcast
| Re: iDen spectrum Makes sense, though if Heavy Reading is to be trusted Sprint may end up deploying a "mini-LTE" channel like MetroPCS has done, in the ESMR band. They may skip EvDO entirely, and have only 1x Advanced (voice, slowish data) on 800 to allow for on-network voice coverage in hard-to-reach areas, assuming that indoors you'll have WiFi of some sort anyway. | |
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| | Won't matter They'll backhaul with a T1 for the whole tower like the 3G is now... | |
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|  L337Premium
join:2005-03-10
Chicago, IL | Re: Won't matter I don't think they would do that, hehe. They might use DS-3 or OC-3, maybe? | |
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| | MattAll noise, no signal.Premium
join:2003-07-20
Jamestown, NC
kudos:12 | Re: Won't matter said by L337:I don't think they would do that, hehe. They might use DS-3 or OC-3, maybe?
GigE and/or Point-to-Point WiMax. | |
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| | | | | Re: Won't matter That would be awesome. Verizon is running fiber to 90% of their towers by 2013. Anyone know if Sprint has anything similar in the works? | |
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| | | | iansltx
join:2007-02-19
Golden, CO
kudos:2 | Re: Won't matter Clearwire has had some luck with using E-Band PtP 80GHz solutions. 1.25 Gbps symmetric per link, and you can do two links per antenna set. Plenty of bandwidth to go around and doesn't rely on the ILEC/MSO/whoever else having fiber to each tower. | |
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| | | | |  davoice
join:2000-08-12
Saxapahaw, NC
 ·Comporium
| Re: Won't matter Actually, Clear has been installing fiber to every tower where it is feasible and cost efficient with fiber being the preferred transport. PtP wireless is reserved for tower sites with no easy access to fiber or a cableco partner. Here in the Carolinas (TWC territory and a Clear partner), the vast majority of towers are backhauled using Time Warner Cable fiber and some Tw Telecom CLEC fiber with a random Level3 fiber connection here and there.
My assumption is that Sprint Wireless and TWC will continue to have similar backhaul relationships where possible. Now Sprint and Comcast... they don't get along so well.
}Davoice | |
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| | | | | | iansltx
join:2007-02-19
Golden, CO
kudos:2 Reviews:
·Comcast
| Re: Won't matter I'm surprised to hear that Sprint and Comcast don't get along so well. Comcast also sells Clear products as part of their Quadruple Play in certain markets (including Denver)...I'd guess that they would strike a deal with Sprint/Clear in return for cheap wholesale rates to provide cheap metro Ethernet transport for 4G.
Then again, around here Comcast is far from the only fiber provider. tw telecom, Level3, Zayo and others are available, even when you completely ignore the ILEC (now CenturyLink). | |
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| | | | | | | davoice
join:2000-08-12
Saxapahaw, NC | Re: Won't matter Comcast doesn't play well with others in general. It's not just with Sprint that they don't get along so well with.  At best, they "tolerate" other carriers. | |
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 DaveDudeNo Fear
join:1999-09-01
New Jersey
kudos:1
1 edit | cdma gone soon Once carriers get LTE going the quick demise of GSM and Cdma will follow. Hopefully carriers will be interoperability ? My sammy already has hspa on 4 frequencies. | |
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| | | Re: cdma gone soon Might be many years before Voice-over-LTE is equally reliable and has the same footprint as today's CDMA. | |
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| AlcoholPremium
join:2003-05-26
Climax, MI
kudos:3 | Yeah, and battery will last 2 hours. | |
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| | DaveDudeNo Fear
join:1999-09-01
New Jersey
kudos:1 Reviews:
 ·Vonage
·ViaTalk
| Re: cdma gone soon said by Alcohol:Yeah, and battery will last 2 hours.
3500 size battery on my android. It would probably last 20 mins on lte. | |
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pkorx8
join:2003-06-19
San Francisco, CA Reviews:
·Comcast
·SONIC.NET
| Yet another LTE band? So will this be another operating band of LTE, which will not be compatible with the other two (Verizon & ATT)'s band of LTE?
Sounds like there will be no hope of eliminating carrier-branded phones in the near future.
Until then, there will be no hope of real (pro-consumer) competition in the US wireless market. | |
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| | | Re: Yet another LTE band? Nail meet head. | |
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| tiger72SexaT duorPPremium
join:2001-03-28
Saint Louis, MO
kudos:1 | Thank the FCC for that. | |
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|  atuarreHere come the drumsPremium
join:2004-02-14
College Station, TX | said by pkorx8:So will this be another operating band of LTE, which will not be compatible with the other two (Verizon & ATT)'s band of LTE?
Sounds like there will be no hope of eliminating carrier-branded phones in the near future.
Until then, there will be no hope of real (pro-consumer) competition in the US wireless market.
why would greedy carriers make it easier for you to move from one persons network to another persons network? Have you forgotten where you are all of a sudden? | |
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 GbcueAlmost P.E.Premium
join:2001-09-30
Santa Rosa, CA
kudos:8 | $5 Billion, I can see that happening Since it will only take AT&T $4B without buying T-Mobile to accomplish 92% penetration with LTE...
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My Blog 2.2 | |
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