Inter-frequency handover documentation update

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)
 

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

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