Generic selectors
Exact matches only
Search in title
Search in content

Outgoing HO problems

  • This topic is empty.
Viewing 6 posts - 1 through 6 (of 6 total)
  • Author
    Posts
  • #53583 Reply
    Host
    Guest

    hi guys,
    what are the possible causes for outgoing HO problems and especially a high % of outgoing HO fail with Reversion to old channels?

    #53584 Reply
    Malek
    Guest

    it can be due to a BSC Database problem, try to check if the adjancencies are correctly declared @ BSC Level.

    #53585 Reply
    Johnson Crew
    Guest

    if it is a problem with co-sited cells, eg. 900 and 1800, it could be a synchronization issue.

    #53586 Reply
    pix
    Guest

    if it’s really high, then probably it’s hard or software related. But you could also verify interference and overlap between the two cells. Just to ensure those are not a problem.

    You can dot that with drivetest. This drivetest can also give you good indication on what’ going on. You could also check the reselection. If that doesn’t work, then it’s clearly not “normal” 🙂

    If it’s software, you could try to delete the adjacency in the OMC-R, and recreate it. You could even try to delete the two cells, recreate them and recreate the adjacency.

    If it’s hardware, then synchronization is a possible problem –> check the SUM card

    Does it happen with only one neighbor or all neighbors ? In one direction or in both direction ?

    #53587 Reply
    pix
    Guest

    check also duplicated BCCH/BSIC

    #53588 Reply
    Pete
    Guest

    Issue possibly could be that the scaning freq are not defined yet the n-cells are.

    Cheers

    Pete

Viewing 6 posts - 1 through 6 (of 6 total)
Reply To: Reply #53585 in Outgoing HO problems
Your information:




<a href="" title="" rel="" target=""> <blockquote cite=""> <code> <pre class=""> <em> <strong> <del datetime="" cite=""> <ins datetime="" cite=""> <ul> <ol start=""> <li> <img src="" border="" alt="" height="" width="">