Jika Rumus SDSR, : SDSR =
(NASUSDPE(1,36)-NRFLSDCC(1,3))/NATTSDPE(1,7)
NASUSDPE = Number of successful SDCCH seizures in a period
NRFLSDCC = Number of lost radio links while using an SDCCH
NATTSDPE = Number of attempted SDCCH seizures in a period