Is anybody using 8-PSK modulation on the BCCH TRX?? There guys from ETSI clearly acknowledging, that using 8-PSK can affect neighbor cell measurement for MS in other cells.This is because of the fact that Time Slot using 8-PSK has generally 2-4dB lower power than the one using GMSK.
Has anybody implemented 8-PSK on BCCH ans seen it’s impact ??
We are using 8-PSK only on BCCH as this is the freq with less interference and no power control. The neighboring slots of the BCCH 1,7 are not using 8-PSK.
We have no problems at this point.
Where you saw this about ETSI. I have to check but I think Siemens recommend EDGE CU to be the BCCH one.