Talk:Evolution-Data Optimized

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Mobile communication standards
GSM / UMTS (3GPP) Family
GSM (2G)
UMTS (3G)
UMTS Rev. 8 (Pre-4G)
CDMA (3GPP2) Family
cdmaOne (2G)
CDMA2000 (3G)
UMB (Pre-4G)
AMPS Family
AMPS (1G)
D-AMPS (2G)
Other Technologies
0G
1G
2G
Pre-4G
Channel Access Methods
Frequency bands

vi:Tiêu bản:Chuẩn điện thoại di động Template:TECHNICAL

  • Some ideas on updates to this page if anybody has the time/information: What are the differences between all the versions of the IS-856 standard, which versions are actually deployed, and which version are planned to be deployed. Also information on the 3GPP2 vs. TIA/EIA versions of the 1xEVDO spec would be nice. Links to the free/current 3GPP2 documents would be nice.


  • What does 1x stand for - first generation?

Sridev 19:28, 17 August 2005 (UTC)

- 1x is shorthand for "single carrier"
- by the way... the Carrier in Single Carrier does NOT refer to Verizon or Sprint  :o) it refers to the protocol.. how the data is transmitted.... bob with http://evdo-coverage.blogspot.com
- Carrier refers to carrier wave. — 12.201.72.68 11:20, 5 December 2005 (UTC)
- 1x stands for "one times", because the carrier channel is one times the size of an IS-95 (first generation) CDMA channel, 1.25 MHz. It is short for 1xRTT (1x Radio Transmission Technology), and distinguishes it from 3xRTT, where the carrier channel is three times 1.25 MHz, or 3.75 MHz, wide. --DylanW 21:18 PST, Dec. 19, 2005

Contents

[edit] EVDO or EV-DO?

This article seemed very confused as to whether it should be 'EVDO' or 'EV-DO'. I changed most occurrences to 'EV-DO' for the sake of picking one. If you feel strongly that it should be 'EVDO', please go for it. burke (talk) 20:30, 26 May 2008 (UTC)

[edit] C.S0024-A v2.0?

In the sentence

"The latest version of the 1xEV-DO standard can be found in C.S0024-A v2.0."

I have no idea what "C.S0024-A v2.0" is, and I'm sure most readers don't either. Could this be explained? --DylanW 00:24, 16 January 2006 (UTC)

It is the name of the 3GPP2 version of IS-856 (1xEV-DO Rev A). It can be found at http://www.3gpp2.org/Public_html/specs/cref.cfm. --Bgurg 18:18, 30 March 2006 (UTC)

[edit] Rev. 0 & Rev. A

It is odd that there is a section that discusses Rev. B and its specs but no section for Rev. 0 or Rev. A. My understanding is that Rev. A is currently being introduced in the US and as far as I know Rev. B is not avaliable. Mudphud 19:36, 8 March 2007 (UTC)

[edit] Other Cellular Router reference

I propose adding StompBox Networks and Tor Amundson to the article somewhere, as he has provided instructions for creating a DiY WiFi hotspot. --Digitalsabre 02:31, 18 March 2007 (UTC)

[edit] Is this a specialist's guide?

This article seems to be aimed at a specialized audience of wireless cognoscenti, not at the average layperson. Could someone translate this into terms that are generally understood by persons without an EE degree? —The preceding unsigned comment was added by NuclearWinner (talk • contribs) 23:50, 6 April 2007 (UTC). (Hey, thanks for signing my name, Mr. Bot!) OK, now I know what tag to add: "TECHNICAL". And I have done so. This topic should be understandable by the intelligent layperson, so let's make the article conform to that hope. An idea would be to explain jargon terms. NuclearWinner 00:36, 23 May 2007 (UTC)

Here are some jargon terms that could be explained:

  • KDDI
  • stationary communications
  • fast packet establishment
  • overlay
  • channel structure
  • pilot structure
  • mobile ASICs
  • statistical multiplexing

NuclearWinner 00:43, 23 May 2007 (UTC)

Agree. It is quite muddy. I have rewritten the intro to sound more like English and also explained (some by wikilinking), KDDI, ASIC and stationary communications, but more remain... --Deon Steyn 11:13, 24 May 2007 (UTC)
Keep going.... I'm a techie and I was lost by line two. ByteofKnowledge 04:01, 11 July 2007 (UTC)

[edit] Great Submission - Questions About Nokia Pulling Out out of CDMA Space

This is a well thought-out submission. I have a question regarding the (referenced) claim that Nokia is pulling out of CDMA. The wording of the article is such that one might be led to believe Nokia is exiting the CDMA space, when this is most definitely not true. What the reference actually states is Nokia and Sanyo are dissolving their CDMA handset effort.

[edit] Links

I've cleaned up a great deal of inappropriate external links, per WP:EL and WP:NOT, particularly WP:NOT#LINKFARM. Put simply, the purpose of linking externally on Wikipedia is not as a shortcut to writing articles, or to link to specific subjects from a page about a general subject. External links from this page should only be made to non-commercial sites relevant to the entire topic of EV-DO, with clear evidence that links are being added in accordance with policy and guidelines. Deiz talk 12:12, 11 June 2007 (UTC)

[edit] Too Technical

This article may be too technical for a general audience.
Please help improve this article by providing more context and better explanations of technical details to make it more accessible, without removing technical details.

[edit] EDGE Comparison

What's up with the EDGE speed comparison sentence? It says that EV-DO is significantly faster than EDGE, and then goes on the mention HSDPA without saying anything about the speed of that technology.

Is there a reason for this? Is EV-DO best compared to EDGE for some reason, instead of HSDPA? Or is it just that EV-DO sounds better when compared to EDGE? --joeOnSunset 04:08, 12 September 2007 (UTC)

[edit] Invitation to edit

I just made this article twice as long as it was before. I hearby invite people to edit this and clarify anything that doesn't make sense. Since I understand it, sometimes it's hard to explain it to someone who doesn't. Feel free to message me with specific questions, if you want. --Mblumber (talk) 03:57, 18 January 2008 (UTC)

[edit] Specialty vendor lists

I've removed the specialty vendor lists under "Cellular router" because they are not pertinent to an article about EV-DO. A list of EV-DO operators is fine, but I don't see the usefulness of a very specific vendor of a particular EV-DO cellular router with a direct link to their website -- why not also have links to Samsung, LG, Sanyo, etc. since they sell far more EV-DO devices than the company I removed does? —Preceding unsigned comment added by 70.228.67.202 (talk) 20:46, 10 March 2008 (UTC)