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Saturday, December 15, 2012

UMTS Handover event 2a, 2b, 2c, 2d, 2e, 2f explained

  • Event 2a: Change of Best Frequency.
  • Event 2b: The estimated quality of the currently used frequency is below a certain threshold and the estimated quality of a non-used frequency is above a certain threshold.
  • Event 2c: The estimated quality of a non-used frequency is above a certain threshold.
  • Event 2d: The estimated quality of the currently used frequency is below a certain threshold.
  • Event 2e: The estimated quality of a non-used frequency is below a certain threshold.
  • Event 2f: The estimated quality of the currently used frequency is above a certain threshold.
Posted by kmshetty at 7:46 PM
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15 comments:

  1. cmdJune 13, 2013 at 4:30 AM

    can u plz elaborate these events.....

    ReplyDelete
    Replies
    1. Manjunatha ShettyJanuary 9, 2014 at 3:07 PM

      I did not notice this comment. I will write one more article covering in detail. However please let me know if you have specific questions

      Delete
  2. Manjunatha ShettyJanuary 8, 2014 at 6:31 PM

    I did not notice this comment. I will write one more article covering in detail. However please let me know if you have specific questions

    ReplyDelete
  3. Pushpendra GangwarJanuary 27, 2014 at 7:45 AM

    Hi can you please elaborate the event 2f a little bit more. I want to know what action a UMTS UTRAN will take on receiving event 2f from UE. My concern is regarding handover.
    Thanks in advance :)

    ReplyDelete
    Replies
    1. Manjunatha ShettyFebruary 5, 2014 at 7:08 PM

      When an event 2F received from the UE, NodeB will stop scanning and exit the compressed mode. In other words, when event 2F is received, UE is returning to good coverage area and stops measurement reporting in compressed mode. Please let me know if you have any more questions

      Delete
    2. UnknownJanuary 21, 2016 at 1:40 PM

      what is compressed mode?

      Delete
    3. QasimAugust 3, 2016 at 2:05 PM

      tuning to different freq by creating some transmission gaps on current freq.

      Delete
  4. UnknownMay 16, 2014 at 12:20 AM

    Hi! can you explain more about event 2b. Actually it is not clear for me.

    ReplyDelete
    Replies
    1. Manjunatha ShettyMay 16, 2014 at 2:10 PM

      Please look into :
      http://www.kmshetty.com/2014/02/inter-frequency-hard-handover-events-in.html
      If this is not clear to you then please let me know.

      Delete
  5. Syed Faisal ALi GerdaziJanuary 10, 2016 at 11:35 AM

    Its a very helpfull link

    ReplyDelete
  6. Syed Faisal ALi GerdaziJanuary 10, 2016 at 11:37 AM

    can any one tell me the trigger time of 2D and 3A

    ReplyDelete
    Replies
    1. Manjunatha ShettyJanuary 10, 2016 at 10:12 PM

      http://www.kmshetty.com/2014/02/inter-frequency-hard-handover-events-in.html
      Can this help. If not will write another article.

      Delete
  7. alen walkerApril 12, 2021 at 12:19 PM

    This comment has been removed by the author.

    ReplyDelete
  8. UnknownOctober 28, 2021 at 9:16 AM

    thankyou

    ReplyDelete
  9. sameerFebruary 18, 2022 at 12:58 AM

    Thanks for another wonderful post. Where else could anybody get that type of info in such an ideal way of writing? note frequency

    ReplyDelete

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