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#32 (permalink) | |
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dunno dunno
![]() Join Date: Mar 2005
Posts: 11,878
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Quote:
Yup, USA is very big country, it taking so longer for small to medium cities to get 3G and att's 3G is currently spreading to suburb, some part of exurb and some middle cities.
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#34 (permalink) | ||
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dunno dunno
![]() Join Date: Mar 2005
Posts: 11,878
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Quote:
Quote:
I feel bad for t-mobile about waste of their time from government. Which is more bandwidth? 1700 MHz or 850 MHz/1900 MHz? Deafclimber, does Verizon will use GPRS/EDGE, along with LTE when LTE isn't serve in some area?
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#35 (permalink) | |
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Wireless Switch Engineer
Join Date: Sep 2006
Location: Chesapeake, VA
Posts: 466
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Quote:
Rev0 - 2.4Mbps RevA - 3.1Mbps Upload theoretical peaks Rev0 - 144Kbps RevA - 1.8Mbps Latency (lower is better) Rev0 - 150ms-400ms or higher RevA - as low as 50ms in best cases HSDPA - 120ms-400ms or higher But again, I dont have HSPDA and really can't comment much about it. I only really can comment on EVDO side as I work with it at my job. Keep in mind, comparing speed tests for different tech is like comparing apple and orange. Also, limiting factors is transport capacty at each cell site.. Most cell sites typically carry only two T1 for DATA only which limits to 3mbps and it SHARES with other users. Bigger sites may carry more capacty as needed. Smaller site only have ONE T1 (1.5mbps MAX).. Also, if you are TOO close to cell site, you will get CRAP speed compared to 100-500 feets away. Reason for that, if you are too close to between 2 sectors or in between 2 cell sites, your phone ping-pong handoff between these 2 sites which affects perforance. [note: where is that spell checker?!?] Richard |
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#36 (permalink) | |
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:: is a dirt dirty ? ::
Join Date: May 2003
Location: hotlanta
Posts: 3,419
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there is no different.
Quote:
that is a good question but i cant answer that because there is not enough information in my wireless researching field. in my opinion, verizon's mobiles will have both LTC and CDMA in it. same idea with att's mobiles that come with EDGE, HSDPA, GSM/GPRS. |
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#37 (permalink) | |
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dunno dunno
![]() Join Date: Mar 2005
Posts: 11,878
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Quote:
When I had test with 2 previous phone, att Tilt and Sprint Mogul on my MacBook Pro, I got between 1.4 to 1.6 mbps via att's 3G and 800 kbps to 1.2 mbps via Sprint's EVDO but upload is around 100 to 300 kbps and latency is between 150 to 300 ms on both of carriers. 3G in Europe like UK is more superior than in USA, HSDPA can be go up to 14 mbps. High-Speed Downlink Packet Access - Wikipedia, the free encyclopedia
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#38 (permalink) | |
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Wireless Switch Engineer
Join Date: Sep 2006
Location: Chesapeake, VA
Posts: 466
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I disagree.. 800Mhz band has more bandwidth than the PCS. Also it is matter of how effective the carrier use the bandwidth too.
See: http://upload.wikimedia.org/wikipedi...requencies.png Quote:
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#39 (permalink) |
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:: is a dirt dirty ? ::
Join Date: May 2003
Location: hotlanta
Posts: 3,419
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richarddeaf, i understand you work for wireless company and you think EVDO is the better. then that is fine. that is your opinion and i respect that.
however i stand correct that att does have GSM's 3G networks. btw i work for att mobility. google.com is our best friend that you can find more info about UTMS/HSPA. like for instance, they say HSUPA goes 7.5mbps down and 2.0 up. |
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#40 (permalink) | |
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:: is a dirt dirty ? ::
Join Date: May 2003
Location: hotlanta
Posts: 3,419
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Quote:
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#41 (permalink) | |
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Wireless Switch Engineer
Join Date: Sep 2006
Location: Chesapeake, VA
Posts: 466
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I have nothing against GSM or HSPDA, there are quite few different technologies out there.. I am just maintenance the EVDO equipements.
What job position do you work at ATT Mobility? I work in network operations (Switch), worked there for 11+ years. I would LOVE to know and meet other "deaf" switch engineers. As far I am aware, i am only one in my company. Quote:
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#42 (permalink) | |
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:: is a dirt dirty ? ::
Join Date: May 2003
Location: hotlanta
Posts: 3,419
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actually i am a financial analyst. i have a deaf friend that works as switch engineer(i think) in downtown of atl. |
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#43 (permalink) |
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Premium Member
![]() Join Date: Jun 2004
Posts: 15,407
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Here's the latest on Suncom and T-Mobile:
SunCom | T-Mobile Merger As for acquiring Sprint, here's my opinion: Sprint is run by a bunch of crooks. Bleh! |
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#44 (permalink) | |
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dunno dunno
![]() Join Date: Mar 2005
Posts: 11,878
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Quote:
I had tried Sprint before and don't like about how work like that.
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#45 (permalink) | |
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Registered User
Join Date: Feb 2007
Location: South Florida
Posts: 172
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T-mobile did acquired to SunCom Wireless for SC, NC and PR |
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#49 (permalink) | |
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Registered User
Join Date: Feb 2007
Location: South Florida
Posts: 172
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T-mobile device will not charge thorugh Suncom Network. it just under unlimited data service on SK3 and Blackberry. |
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#50 (permalink) | |
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Premium Member
![]() Join Date: Jun 2004
Posts: 15,407
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Quote:
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#51 (permalink) |
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Sundog
Join Date: Sep 2005
Location: Shinar (Sumer)
Posts: 2,314
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Suncom is not heard in Wyoming I never heard of the wireless company.
I hardly remember first term many years ago President Bush said all wireless will be change by 2010 and my guess that something is big change in future of Homeland security? Intel WiMAX Technology Intel WiMAX will deliver extended broadband Internet beyond Wi-Fi. With wireless high-speed broadband connectivity for your PC, WiMAX-enabled laptops and mobile devices will provide you the freedom to connect to the Internet just as you do with your cell phone service. With speeds similar to DSL or cable and faster than using your cell phone service to connect, WiMAX will allow you to access all the data-intensive applications you love, including streaming media on the Internet, live video conferencing, mobile TV and more while on the move.
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#53 (permalink) | |
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Bạnned
Join Date: Mar 2007
Posts: 730
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Quote:
![]() Last edited by ~SG~; 05-07-2008 at 09:49 AM. Reason: Resized the map. |
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