diff --git a/doc/FEATURE_SET.md b/doc/FEATURE_SET.md index 3c7490d937..9faf2c3d3b 100644 --- a/doc/FEATURE_SET.md +++ b/doc/FEATURE_SET.md @@ -139,6 +139,10 @@ These modes of operation are supported: - evaluation of CQI report - MAC scheduling of SR reception - Intra-frequency handover +- Inter-frequency handover + - Measurement gaps are automatically computed at the DU if the CU has neighbor information and the configured + neighbors include cells operating on different frequencies + - DUs must be synchronized with each other for the measurements to be properly performed - Initial support for RedCap - Scheduling of SIBs (2, 19) diff --git a/doc/RRC/rrc-dev.md b/doc/RRC/rrc-dev.md index d511421b01..e6eb3f97e0 100644 --- a/doc/RRC/rrc-dev.md +++ b/doc/RRC/rrc-dev.md @@ -291,7 +291,7 @@ Note that while 38.331 requires only one RRC transaction to happen at a time, the 5G RRC does not actually ensure this; it only tries to prevent it by chaining of transactions and some checks. For instance, the Security Mode procedure is followed by a UE capability procedure, and some procedures are not -executed if others are ongoing (ex.: handover if there is reconfiguratio). +executed if others are ongoing (ex.: handover if there is reconfiguration). However, it might be possible to trigger a procedure while another is ongoing. As of now, no queueing mechanims exists to ensure only one operation is @@ -303,7 +303,7 @@ Handover-related data is stored in a per-UE structure of type `nr_handover_context_t`. It is a pointer and only set during handover operation. This data structure has in turn two pointers, one to the source CU (`nr_ho_source_cu_t`), and one to the target CU (`nr_ho_target_cu_t`). In F1, -both are present. In N2 and Xn, only one pointer is supposed to be set a the +both are present. In N2 and Xn, only one pointer is supposed to be set at the corresponding CU. `nr_ho_source_cu_t` contains notably a function pointer `ho_cancel` for diff --git a/doc/handover-tutorial.md b/doc/handover-tutorial.md index 5fe08be665..87a45ed1e5 100644 --- a/doc/handover-tutorial.md +++ b/doc/handover-tutorial.md @@ -123,7 +123,7 @@ You can do handover across DUs with a COTS UE. Note that these DUs should be separated by at least multiple meters to ensure that the UE will receive different signal strengths when moving between cells. -We only support intra-frequency handovers yet. We have verified with USRPs +We support both intra-frequency and inter-frequency handovers. We have verified with USRPs only, although other radios should work as well. For UEs, we verified Quectel modules and iPhones. Note, though, that not all