Home » Topics » Telecom Design » No Service Mode
-
SierraGuest
Hi all,
any body knows what are the causes of “no service mode” on drive test idle-lock ? Is it caused by co channel or adjacent channel interference ?
Thanks
BR,
Sierra
pixGuest
in my mind, “no service mode” mean :
1/ the DL RXLEV goes below the RXLEV ACCESS MIN defined in the cell (or more precisely : the C1 becomes negative)
but maybe (and I strongly insist on the “MAYBE”) it could also mean :
2/ MS cannot decode the BCCH system information messages (due to strong DL interference on BCCH frequency)
3/ the cell is barred
(to be checked with MS’s software expert)
- The forum ‘Telecom Design’ is closed to new topics and replies.