Editing My 3GPP 38.300 Notes (section)

=== 7.1 Services and Functions ===

The main services and functions of the RRC sublayer over the Uu interface include:
* <span style="color:red">Broadcast of System Information related to AS and NAS;</span>
* Paging initiated by 5GC or NG-RAN;
* Establishment, maintenance and release of an RRC connection between the UE and NG-RAN including:
** Addition, modification and release of carrier aggregation;
** Addition, modification and release of Dual Connectivity in NR or between E-UTRA and NR.
* Security functions including key management;
* Establishment, configuration, maintenance and release of Signalling Radio Bearers (SRBs) and Data Radio Bearers (DRBs);
* Mobility functions including:
** <span style="color:red">Handover and context transfer;</span>
** <span style="color:red">UE cell selection and reselection and control of cell selection and reselection;</span>
** Inter-RAT mobility.
* QoS management functions;
* UE measurement reporting and control of the reporting;
* Detection of and recovery from radio link failure;
* <span style="color:red">NAS message transfer to/from NAS from/to UE.</span>

The sidelink specific services and functions of the RRC sublayer over the Uu interface include:
* Configuration of sidelink resource allocation via system information or dedicated signalling;
* Reporting of UE sidelink information;
* Measurement configuration and reporting related to sidelink;
* Reporting of UE assistance information for SL traffic pattern(s).