LTE: why such discrimination regarding measurement object ?

Question

In specification, I have read two points.
- For inter-RAT UTRA measurements a measurement object is a set of cells on a single UTRA carrier frequency.
- For inter-RAT GERAN measurements a measurement object is a set of GERAN carrier frequencies.

I have concern regarding that why measurement object for E-UTRA works only for a single carrier frequency . whereas for GERAN is as set of carrier frequency.

Answer 1

Even same is true for CDMA2000 - a measurement object is a set of cells on a single (HRPD or 1xRTT) carrier frequency. So I am assuming this has some relation with WCDMA as UMTS and CDMA2000 both are CDMA2000 where as GSM/GERAN is FD-TDMA. But yes this is not the precise answer....