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common BCCH

Viewing 14 posts - 16 through 29 (of 29 total)
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  • 7th December 2005 at 06:51 #42698
    jood
    Guest

    Hi Boko
    you almost right, BUT There is a possibility to integrate HO based on quality… inner >> complete OR ol >> ul . By two ways:
    1) Bad quality urgency HO, from BTS point of view (UL quality) (not the considered DL QU reported by MS), & you can prohibit it for certain area (cell center) by BQOFFSET.
    2) HO due to consecutive intra QU HO at inner, SO when threshold consecutive intra HO detected >>>>> HO to complete.
    It depends on the function & facilities provided by your locating algorithm.

    7th December 2005 at 07:07 #42699
    Boko
    Guest

    Hi Jood,

    Can you specify the vendors which have such algorithms as Siemens do not have such. I consider writing a change request for this and it will be very helpful for me if I have some knowedge about other vendors algorithms

    Rgds
    Boko

    7th December 2005 at 12:25 #42700
    jood
    Guest

    Ericsson

    20th December 2005 at 15:34 #42701
    Tag
    Guest

    hi guys ,

    My side jux covert to CBCCH for certain sites,However some of the sites seem to have increase in drop calls,

    We suspect that the non-bcch layer offset is giving the problems as it is not a self regulated value
    Any advice..

    Cheers

    22nd December 2005 at 07:05 #42702
    jood
    Guest

    chek the parameter of band (threshold + hysterisis) use the default parameter.
    before that define the resoan of drop from OMC-R (intra HO, Qu,….etc)

    22nd December 2005 at 12:11 #42703
    Tag
    Guest

    jood,

    Can u tell more abt it?

    Thanks

    22nd December 2005 at 15:18 #42704
    Boko
    Guest

    Tag,

    what vendor?

    22nd December 2005 at 15:35 #42705
    Tag
    Guest

    Nokia BTS

    24th December 2005 at 06:55 #42706
    jood
    Guest

    #use the default parameter provided by your vendor for (multi band consentric featura CBCCH).(band-threshold, band-hyst, neighbor list,band periority,HCS & C2,…etc)
    #chek HW (syncronization).
    #chek your SDCCH dimensioning on 900 band.

    27th December 2005 at 15:10 #42707
    Tag
    Guest

    hi guys,

    the parameters u guys adviced..yes we r using the default parameters..beside this what else sld i take note…

    28th December 2005 at 06:18 #42708
    jood
    Guest

    Tag
    in acount of different vendor & Tech, we are restricted to disscus on general standard & specification.

    29th December 2005 at 14:55 #42709
    Tag
    Guest

    Hi jood,
    Able to email to me?

    duplexers@hotmail.com

    31st March 2009 at 21:05 #42710
    Arun
    Guest

    Hi

    We also recently shifted to CBCCH and found that call drop rate is increasing post CBCCH implementation. Presently we are verifying the physical antenna specification for 1800 and 900 bts so that rf enviroment should be similar to both layers. We have observed that after CBCCH traffic is shifted to GSM layer to DCS layer. As we had better RF enviroment for DCS than GSM this can be one of the reason. Though we are also in process of anaysis of core reason of CDR increase

    25th November 2009 at 12:23 #42711
    Valerijs
    Guest

    Single band repeaters ?

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