- This topic has 12 replies, 1 voice, and was last updated 14 years, 9 months ago by
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Hi,
in one cell there are declared 2 SDCCHs or 16 subchannels. Sometimes happens that available subchannels are 15. Why and what causes that?REX
Because in 1 SDCCH ,we define SDCCB,so the configuration stands 7SDCCH subchannels+ 1SDCCB+8SDCCH subchannelsThanks Bijoy,
Can you please explain what is SDCCB? That’s happening rarely, usualy available channels are 16.
Regards,
RexBijoy,
if it’s related to combined BCCH then we don’t using that (cbch).CBCH can be used both in combined as well as non-combined mode.If you are using
1.Nokia Sytem,check with the command ZERO:BTS=BTS ID;
2.Ericsson system,check with the command RLCRP:Cell=cellname,detail;
3.Huawei System,check in LMTWe are using Alcatel.
sdccb=sdcch/4 + cbch
Hi pridey
It cant be.
It should be SDCCH/7+CBCHOOooops, some inter-vendor vocabulary issues…
Rex, in Alcatel, the “SDH” is a timeslot configured with 7 SDCCH subchannels + 1 SMS-CB (Cell Braodcast) subchannel. Check the cell timeslot configuration in the RNUSM “Cell Edit”.
Bijoy, the SDCCB is probably a cell braodcast subchannel, yeah ?
Rex (again), the cell broadcast is used to broadcast one SMS message to all the MS within one cell. It is usually broadcasting commercial advertisements.
Cheers,
PixThanks Pix,
I checked and there is no SDH configured in that cell. Is it possible cell broadcast go through ‘usual’ SDC?
Regards,
RexRex,
No.
Going back to your initial question… you were talking about 15 AVAILABLE sdcch subchannels during one hour ?
It means the SDCCH are not availble during 1/16th of an hour (or approx.). The average over one hour is 15.
That’s all…
Thanks
Can any body tell me How Rx Qual can be converted in C/I in Huawei III Power control.
Also the Default Upper and Lower Quality Thrsh in Huawei III PC are same . HOw?
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