Section: 17.2 Cross-Link Interference Management
Content: When different TDD DL/UL patterns are used between neighbouring cells, UL transmission in one cell may interfere with DL reception in another cell: this is referred to as Cross Link Interference (CLI). To mitigate CLI, gNBs can exchange and coordinate their intended TDD DL-UL configurations over Xn and F1 interfaces; and the victim UEs can be configured to perform CLI measurements. There are two types of CLI measurements: - SRS-RSRP measurement in which the UE measures SRS-RSRP over SRS resources of aggressor UE(s); - CLI-RSSI measurement in which the UE measures the total received power observed over RSSI resources. Layer 3 filtering applies to CLI measurement results and both event triggered and periodic reporting are supported.