Study on NR Network-controlled Repeaters
The present document captures the findings from the study item "Study on NR Network-controlled Repeaters" [2].
The SI includes the study and identification of side control information (i.e., beamforming information, Timing information, information on UL-DL TDD configuration, ON-OFF information and power control information) for network-controlled repeaters and corresponding L1/L2 signaling (including its configuration) to carry the side control information. The scope of the study also includes the study on the aspects (i.e., identification and authorization) of network-controlled repeater management
The study on NR network-controlled repeaters is to focus on the following scenarios and assumptions:
- Network-controlled repeaters are inband RF repeaters used for extension of network coverage on FR1 and FR2 bands, while during the study FR2 deployments may be prioritized for both outdoor and O2I scenarios.
- For only single hop stationary network-controlled repeaters
- Network-controlled repeaters are transparent to UEs
- Network-controlled repeater can maintain the gNB-repeater link and repeater-UE link simultaneously
NOTE1: Cost efficiency is a key consideration point for network-controlled repeaters.