In the 3GPP TSG RAN #80 meeting, a new SI "Study on remote interference management for NR" was agreed for Release 16 [2]. The study aims to investigate possible mechanisms for mitigating the impact of remote base station interference in unpaired spectrum focusing on synchronized macro cells with semi-static DL/UL configuration in co-channel.

The present document captures the findings and results from the study item "Study on remote interference management for NR" [2]. The objective of this SI is to investigate possible mechanisms for mitigating the impact of remote base station interference in unpaired spectrum focusing on synchronized macro cells with semi-static DL/UL configuration in co-channel, including:

• Study mechanisms for improving network robustness and addressing strong remote base station interference, including potential UE side's enhancement [RAN1]
• Study mechanisms for identifying which gNB(s) generate strong remote interference, including the following aspects:
  • Potential Reference signal design for gNB to identify that it creates strong inter-gNB interference to some victim gNB [RAN1]
    • Existing reference signals are starting points of discussion.
  • Mechanism for gNB to start and terminate the transmission/detection of the reference signal(s) [RAN1, RAN3]
• Study the potential additional coordination among gNBs for mitigating remote interference [RAN3]

This document is a 'living' document, i.e. it is permanently updated and presented to TSG-RAN meetings.