Sharing in 800 MHz band

The study identified technical constraints that would apply if LTE, HSPA+ and GSM‑R base stations were operating in adjacent spectrum in the 800 MHz band.  As part of the study the key interference (sharing) mechanisms were identified as shown in red below:

UKE interference analysis

The co-existence analysis was based on the calculation of the effective interfering emission power into the transmitter antenna by considering the overlap between the interfering transmitter emission and victim receiver selectivity masks and the translation of this power into separation distance requirements.

The study also considered the implications of co‑existence between LTE and PMSE / SRD devices.