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Call drop in 3G -UMTS

Viewing 15 posts - 1 through 15 (of 36 total)
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  • Author
    Posts
  • 26th May 2009 at 06:26 #57251
    MKT
    Guest

    Hi,
    Can any body provide some information on the probable reasons for the call drop in 3G WCDMA.

    Regards,

    MKT

    26th May 2009 at 11:17 #57252
    Chris
    Guest

    This is very wide question. I’m sure that radio coverage is very common reason, but of course there many other reasons as well.

    8th August 2011 at 11:21 #57253
    prakash
    Guest

    SC Collision.
    Pilot pollusion
    Missing Neighbour,
    No Resource available (Due to congestion on target cell),
    Hardware issue.
    Delayed Handover,
    Improper Synchronization.

    3rd November 2012 at 05:18 #57254
    kamllesh rana
    Guest

    can any body explain me the differnnce between modulation used in 2G and 3G ….i.e. GMSK and QPSK.

    29th November 2012 at 05:31 #57255
    creepzto
    Guest

    based on my experience drop call occur if there is a missing neighbor and the site need to split sector due to congestion.

    22nd May 2013 at 21:59 #57256
    kuna
    Guest

    kindly
    help me with 3g dropped call due to improper synchronization and how it occur..

    Thanks..

    30th July 2013 at 10:07 #57257
    Pawan Sharma
    Guest

    Call drop can be because of poor coverage(TP value is high):-

    1. TP Value is high.

    2. Congestion on target Cell

    3. Missing Neighbor.

    4.INSYNCID & OUTSYNCID mismatch

    5. Inter frequency missing neighbor.

    6.Due to alarm & Hardware issue

    7.Pilot pollution

    8. Scribbling code collision

    8th September 2014 at 04:16 #57258
    Kimhourt chann
    Guest

    Dear all,
    could you provide me detail about drop call in wcdma.

    4th November 2014 at 18:30 #57259
    Qual
    Guest

    Probably for drop there are 3 reasons
    1.SoHo
    2.neighbor
    3.UlSynch
    4.Drop due to others-
    1.Pilot Pollution
    2.hardware/Software issue
    3.SC collision
    4.issue in nearby site
    5.Nodesynch Phase Drift alarm
    6.MP Load /Dc Load /Cc Load

    heath check is required to be done earlier .

    5th November 2014 at 12:03 #57260
    Pawan Sharma
    Guest

    Hi ,

    Tune Physical Channel reconfig switch.

    It will help to reduced Call drop.

    8th May 2015 at 14:39 #57261
    soukaina youssfi
    Guest

    help me with 3g dropped call

    1st June 2015 at 06:44 #57262
    Ajaz Ahmad
    Guest

    Call Drop Reasons and Solutions

    14th July 2016 at 12:02 #57263
    kallo ibrahima
    Guest

    Good Morning
    Im kallo, working on ZTE equipement. I have some difficult to improve 3G call drop CS domain.

    I have check and found that the main 3G CS Call drop reasons are:
    1-Other reason
    2-RAB Release
    3-Soft Handover/ Hard handover
    4-Other procedure (very high)
    5-Call re-estabilshment.

    I need some help please

    15th July 2016 at 14:33 #57264
    Wallis Dudhnath
    Guest

    For Call drop (Voice, Data, etc..) I would recommend a Network audit.
    Areas to focus on:-

    – Activated Network Features (basic / optional)
    – Resource Usage
    – Licenses
    – Traffic Profile / Dimensioning
    – Policy Settings
    – Quality of Service
    – RF setup (and possible optimisation)
    – Stability of the Transmission Network (MPLS-TE, SDH, etc..)

    11th April 2017 at 20:53 #57265
    Nios BY
    Guest

    I work on Ericsson 3G equipment (DUW) I have a lot of drop call in CS and PS_RAB.

    What is the parameter of the power to decrease the power of the cell so as not to go very far finally to avoid the degradation of the signal.

    What is the maximum distance in 3G cell must cover to prevent its degradation and avoid congestion.

    What are the most commonly used power settings

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Viewing 15 posts - 1 through 15 (of 36 total)
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