ATT 3G deployment

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Archived from groups: alt.cellular.verizon,alt.cellular.attws (More info?)

Interesting how leaving out one word in a newspaper article changes
things. A news brief in the San Jose Mercury News business section
(www.mercurynews.com) on July 21 stated that (quoting)


ATT Wireless began offering the first 3G network services in the country
to its users in the Bay Area and three other cities.


Going to the actual press release at

http://www.attwireless.com/press/releases/2004_releases/072004_awe.jhtml

one sees that what they really are announcing is the "the first
commercially-available true 3G UMTS network". In other words, the first
UMTS/W-CDMA deployment in the US. The news brief makes it sound like
AT&T wireless is the first out with 3G, which is not true... Verizon
Wireless has had its 3G technology, 1xEV-DO, deployed for some time in
several cities.

 

[Guest]

Archived from groups: alt.cellular.verizon,alt.cellular.attws (More info?)

In article <cdp6ve02bfb@news1.newsguy.com>,
CharlesH <hoch@exemplary.invalid> wrote:
>one sees that what they really are announcing is the "the first
>commercially-available true 3G UMTS network". In other words, the first
>UMTS/W-CDMA deployment in the US. The news brief makes it sound like
>AT&T wireless is the first out with 3G, which is not true... Verizon
>Wireless has had its 3G technology, 1xEV-DO, deployed for some time in
>several cities.

VZW has EV-DO in two markets. AT&T Wireless has UMTS in four markets.

VZW is definitely going to beat out AWS/Cingular in terms of 3G deployment
though. VZW plans to have the EV-DO rollout completed network wide by the
end of 2005.

I'm using a Moto A845 here in the Seattle area. It is a UMTS phone
with Bluetooth. Bandwidth is about twice class 10 EDGE in terms of
uplink and downlink (325Kbps downlink, 65Kbps uplink). Latency is
also much better than EDGE.

One of the nice things about UMTS is the ability to make a voice call
when I have a data connection going (and the data still flows) and
vice versa, make a data connection during a voice call without
disrupting the voice call.

I'll give EV-DO a try when it comes to Seattle. It should be even faster.

Any idea when VZW is planning to release a Bluetooth phone with EV-DO?
I'm not really interested in using a PCMCIA card. Bluetooth is far more
convenient for me.

 

[Guest]

Archived from groups: alt.cellular.verizon,alt.cellular.attws (More info?)

On Sun, 25 Jul 2004 00:57:27 +0000, Mark Henderson wrote:

> In article <cdp6ve02bfb@news1.newsguy.com>,
> CharlesH <hoch@exemplary.invalid> wrote:
>>one sees that what they really are announcing is the "the first
>>commercially-available true 3G UMTS network". In other words, the first
>>UMTS/W-CDMA deployment in the US. The news brief makes it sound like
>>AT&T wireless is the first out with 3G, which is not true... Verizon
>>Wireless has had its 3G technology, 1xEV-DO, deployed for some time in
>>several cities.
>
> VZW has EV-DO in two markets. AT&T Wireless has UMTS in four markets.
>
> VZW is definitely going to beat out AWS/Cingular in terms of 3G deployment
> though. VZW plans to have the EV-DO rollout completed network wide by the
> end of 2005.
>
> I'm using a Moto A845 here in the Seattle area. It is a UMTS phone
> with Bluetooth. Bandwidth is about twice class 10 EDGE in terms of
> uplink and downlink (325Kbps downlink, 65Kbps uplink). Latency is
> also much better than EDGE.
>
> One of the nice things about UMTS is the ability to make a voice call
> when I have a data connection going (and the data still flows) and
> vice versa, make a data connection during a voice call without
> disrupting the voice call.
>
> I'll give EV-DO a try when it comes to Seattle. It should be even faster.
>
> Any idea when VZW is planning to release a Bluetooth phone with EV-DO?
> I'm not really interested in using a PCMCIA card. Bluetooth is far more
> convenient for me.

What kind of latency are you getting with UMTS? I know that most current
TDMA and CDMA ranges are between 300 and 700 milliseconds in which case
many services simply will not work at over 200 milliseconds. I have not
heard from people using EV-DO as to what the latency is. I know that OFDM
can be as low as 10 milliseconds and is almost always below 100
milliseconds. Trouble is that Nextel's Flarion OFDM is only in one
market. BTW, OFDM is a broad term and it is used for 802.11x. The Flarion
version was tested here in the NW in thick wooded areas and passed the
penetration tests very nicely so they deploy it first in North Carolina?
Go figure! Nextel being a tech rebel may be a good thing. Sprint is going
to use EV-DO as well since EV-DV will not happen soon enough.
Even 325 down would be good enough for me. My Sprint PCS card could get
sustained 133kpbs on a good night but the latency was 299 to 800 ms and a
lot of stuff simply timed out. I added something to my dial options to
make it not go dormant by doing an lcp echo every three seconds. That of
course, made it more bearable.



Dave

 

[Guest]

Archived from groups: alt.cellular.verizon,alt.cellular.attws (More info?)

[POSTED TO alt.cellular.attws - REPLY ON USENET PLEASE]

In <pan.2004.08.09.21.38.38.179088@hormel.com> on Mon, 09 Aug 2004 14:38:40
-0700, "David W. Studeman" <eat_your_own_spam@hormel.com> wrote:

>On Sun, 25 Jul 2004 00:57:27 +0000, Mark Henderson wrote:

>> Any idea when VZW is planning to release a Bluetooth phone with EV-DO?
>> I'm not really interested in using a PCMCIA card. Bluetooth is far more
>> convenient for me.
>
> What kind of latency are you getting with UMTS?

Only ATTWS has UMTS in the USA.

>I know that most current
> TDMA and CDMA ranges are between 300 and 700 milliseconds

Actually worse -- more like 800-1000 ms.

>in which case
> many services simply will not work at over 200 milliseconds.

Of course they will, albeit painfully in some cases.

>... My Sprint PCS card could get
> sustained 133kpbs on a good night but the latency was 299 to 800 ms and a
> lot of stuff simply timed out. I added something to my dial options to
> make it not go dormant by doing an lcp echo every three seconds. That of
> course, made it more bearable.

It shouldn't -- something isn't right in your configuration.

--
Best regards,
John Navas <http://navasgrp.home.att.net/>

 

[Guest]

Archived from groups: alt.cellular.verizon (More info?)

In alt.cellular.verizon David W. Studeman <eat_your_own_spam@hormel.com> wrote:

> Another thing I forgot to mention about SprintPCS is that gosh awful image
> compression. Sprint uses an upstream transparent proxy that degrades images
> before sending them on. This occurs as ports 80, 8080 and possibly 443.

I'd hope they aren't proxying 443... 8080 is normally a proxy port anyhow...

--
JustThe.net Internet & New Media Services, http://JustThe.net/
Steven J. Sobol, Geek In Charge / 888.480.4NET (4638) / sjsobol@JustThe.net
PGP Key available from your friendly local key server (0xE3AE35ED)
Apple Valley, California Nothing scares me anymore. I have three kids.

 

[Paul]

Archived from groups: alt.cellular.verizon (More info?)

On Tue, 10 Aug 2004 18:51:53 -0500, Steven J Sobol
<sjsobol@JustThe.net> wrote:

>In alt.cellular.verizon David W. Studeman <eat_your_own_spam@hormel.com> wrote:
>
>> Another thing I forgot to mention about SprintPCS is that gosh awful image
>> compression. Sprint uses an upstream transparent proxy that degrades images
>> before sending them on. This occurs as ports 80, 8080 and possibly 443.
>
>I'd hope they aren't proxying 443... 8080 is normally a proxy port anyhow...

I haven't seen any negatives accessing my servers through port 443.

 

[Guest]

Archived from groups: alt.cellular.verizon (More info?)

paul@wren.cc.kux.edu wrote:

> I haven't seen any negatives accessing my servers through port 443.

I wouldn't trust a proxy to not store the sensitive information I'd be
sending to an HTTPS website over port 443. Just one of my little hangups.

--
JustThe.net Internet & New Media Services, http://JustThe.net/
Steven J. Sobol, Geek In Charge / 888.480.4NET (4638) / sjsobol@JustThe.net
PGP Key available from your friendly local key server (0xE3AE35ED)
Apple Valley, California Nothing scares me anymore. I have three kids.