Project RAN Evolution: Multi-RAT Joint Radio Operation (MRJRO)

This document presents the motives and business benefits of MRJRO, primarily centered around the dominance of multi-RAT deployment scenarios and the potential performance gains due to enhanced resource utilization with MRJRO. Based on MRJRO requirements, the hardware, reliability, adaptation and implementation requirements to introduce both semi-dynamic and fully dynamic MRJRO are specified. The constraints that stand in the way of MRJRO, mainly the introduction of Inter-RAT intercell Interference (IRI) and the management of control signaling in fully dynamic MRJRO, are also studied.