Showing results 1 to 3 of 3

Thread: High DCR After Swap

  1. #1
    Junior Member Reputation: 8
    Join Date
    2011-12-24
    Posts
    5


    Default High DCR After Swap

    Dear Experts,

    We have swapped a dense urban site from Motorolla to Huawei.
    After the swap the 1800 trxs are removed by the planning team. Now the DCR is too high on this Site, the CSSR is also degraded very much.
    the configuration before swap was 4/4-2/2, and After swap is only GSM i-e; 4/4-0/0.

    Most of the Call drops are due to

    Attached Files Attached Files

  2. #2
    Member Reputation: 471
    Join Date
    2008-09-26
    Location
    World
    Posts
    392


    Default Re: High DCR After Swap

    Dear,

    Could you explain the CM33 and CM330 counters, I don't get the meaning,

    Regards,

  3. #3
    Member Reputation: 322
    Join Date
    2011-05-18
    Posts
    241


    Default Re: High DCR After Swap

    Check link imbalance and check if a paticular TRX is having quality issues; send for re-calibration as in swap most of the time radios are not claibrated propoerly. to summarize see TRX level drops from at TA / check quality and level stats at TRX level / check frequency plan. One more only the radios were swapped or anything else too??? Example is shared below as in a cell having poor downlink quality on a single TRX due to high downlink path loss....

    CM330: This measurement provides the number of calls released because of the ERR IND, CONN FAIL IND, and REL IND messages received by the BSC after the MS seizes a traffic channel.

    Attachment 27567Attachment 27568Attachment 27569

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
  •