Thanks Thanks:  0
Page 1 of 3 123 LastLast
Showing results 1 to 10 of 21

Thread: Major Difference between 2G and 3G

  1. #1
    Member Reputation: 49
    Join Date
    2010-07-22
    Posts
    61


    Default Major Difference between 2G and 3G

    Hi Guys,

    Maybe you can share what is the major difference between this two technologies. You can share anything that cross your mind.

    Let me start first.

    1) Difference frequency band. 2G occupy 900MHz and 1800 MHz.while 3G 2100 MHz

    2) Signalling, Interface and Architecture difference

    I know there are plenty out there, but just want to know what cross your mind when somebody from non-technical background ask this question.

  2. # ADS
    Circuit advertisement
    Join Date
    Always
    Posts
    Many
     

  3. #2
    Member Reputation: 172
    Join Date
    2010-11-09
    Location
    In the World
    Posts
    201


    Default Re: Major Difference between 2G and 3G

    Quote Originally Posted by arban View Post
    Hi Guys,

    Maybe you can share what is the major difference between this two technologies. You can share anything that cross your mind.

    Let me start first.

    1) Difference frequency band. 2G occupy 900MHz and 1800 MHz.while 3G 2100 MHz

    2) Signalling, Interface and Architecture difference

    I know there are plenty out there, but just want to know what cross your mind when somebody from non-technical background ask this question.

    Data services.....2G is mainly voice data ..3G like R99,HSDPA,HSPA+ and LTE....data services

  4. #3
    Member Reputation: 177
    Join Date
    2009-09-03
    Posts
    379


    Default Re: Major Difference between 2G and 3G

    Also Bandwidth

    GSM has 200 kHz
    WCDMA has 5000khz

    Quote Originally Posted by haq_enam View Post
    Data services.....2G is mainly voice data ..3G like R99,HSDPA,HSPA+ and LTE....data services

  5. #4
    Member Reputation: 177
    Join Date
    2009-09-03
    Posts
    379


    Default Re: Major Difference between 2G and 3G

    Fast power control

    2G has 2Hz
    3G has 1500Hz

    Quote Originally Posted by arban View Post
    Hi Guys,

    Maybe you can share what is the major difference between this two technologies. You can share anything that cross your mind.

    Let me start first.

    1) Difference frequency band. 2G occupy 900MHz and 1800 MHz.while 3G 2100 MHz

    2) Signalling, Interface and Architecture difference

    I know there are plenty out there, but just want to know what cross your mind when somebody from non-technical background ask this question.

  6. #5
    Member Reputation: 49
    Join Date
    2010-07-22
    Posts
    61


    Default Re: Major Difference between 2G and 3G

    Quote Originally Posted by arban View Post
    Hi Guys,

    Maybe you can share what is the major difference between this two technologies. You can share anything that cross your mind.

    Let me start first.

    1) Difference frequency band. 2G occupy 900MHz and 1800 MHz.while 3G 2100 MHz

    2) Signalling, Interface and Architecture difference

    I know there are plenty out there, but just want to know what cross your mind when somebody from non-technical background ask this question.
    3G has hard hand over, soft hand over, and softer handover

    2G only has hard hand over

  7. #6
    Member Reputation: 238
    Join Date
    2009-01-20
    Posts
    539


    Default Re: Major Difference between 2G and 3G

    Hi

    let me share my little knowledge

    1)3G came as data requirment came more or requirment over air interface and mobility came strong .
    2)with 200Khz in 2G and with Modulation techinques it is not possible to cop up with Higher data rates.


    Regards
    Plannerguy

  8. #7
    Member Reputation: 38
    Join Date
    2010-10-07
    Posts
    188


    Default Re: Major Difference between 2G and 3G

    The penentration point of view:
    2g cover lager footprint while 3g cover less footprint this is due to their operation frequency

  9. #8
    Member Reputation: 238
    Join Date
    2009-01-20
    Posts
    539


    Default Re: Major Difference between 2G and 3G

    Hi luganomu

    But there is a catch ie the RX senstivity of BTS in GSM 2G is -110 and in case of 3G its -126 also the RX sensivity or 2G GSm phones according GSM spec of rel 3gpp is -102 db while 3G is -114 db

    So footprint cannot be just assumed on frequency, also you can operate 3G on 900 band .

    But the service provdided at longer distance may vary due to Power ! ie which is a main limiting factor in 3G.


    Regards
    Plannegruy

  10. #9
    Senior Member Reputation: 591
    Join Date
    2010-05-10
    Posts
    343


    Default Re: Major Difference between 2G and 3G

    Quote Originally Posted by arban View Post
    Hi Guys,

    Maybe you can share what is the major difference between this two technologies. You can share anything that cross your mind.

    Let me start first.

    1) Difference frequency band. 2G occupy 900MHz and 1800 MHz.while 3G 2100 MHz

    2) Signalling, Interface and Architecture difference

    I know there are plenty out there, but just want to know what cross your mind when somebody from non-technical background ask this question.
    3G employs a fat pipe, which improves delivery to the user. Also, a wideband channel is more resilient to fading. Also, 3G allows us BW-Power trade off. Hence, it is possible to receive signal levels lower than the ambient noise (interference).

  11. #10
    BannedUser Reputation: 970
    Join Date
    2009-10-22
    Location
    The Air
    Posts
    501


    Default Re: Major Difference between 2G and 3G

    - 3G provides high speed packet data rate in several Mbps
    - 3G uses wideband vs narrow band of 2g gsm
    - 3G use the spread spectrum vs gsm 2g tdma

Bookmarks

Bookmarks

Posting Rules

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •