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Thursday, 31 May 2007

3G -> 3.9G


There seems to be confusion when people discuss terms like 3.5G, 3.75G so i decided to define them. I am sure people who have objections will comment.
Lets first start with 2G systems:
2G = GSM
2.5G = GPRS
2.75G = EDGE
Then moving onto 3G systems:
3G = WCDMA, R99 (i am not looking at other technologies but similar mapping will apply)
3.5G = HSDPA
3.75G = HSUPA
3.8G = HSPA+ (HSPA Enhancements)
3.85G = 'HSPA+' + MIMO
3.9G = LTE
4G = NOT WiMAX
at

4 comments:

  1. Senthil4 June 2007 at 18:17

    May be as the technology evolves
    and at convergence,
    4G might include
    WiMAX,LTE and a host
    of other services..

    ReplyDelete
  2. Anonymous13 August 2007 at 09:58

    I'm interested when you wrote
    4G = not Wi-Max, any reason behind that?

    ReplyDelete
  3. Anonymous30 January 2009 at 22:53

    4G is defined by ITU-T as IMT-Advanced and e.g. LTE-Advanced will be compliant to that definition.

    ReplyDelete
  4. Muter16 March 2022 at 17:15

    This comment has been removed by a blog administrator.

    ReplyDelete