Section: 5.3.5.13b SCG deactivation
Content: Upon initiating the procedure, the UE shall: 1> consider the SCG to be deactivated; 1> indicate to lower layers that the SCG is deactivated; 1> if bfd-and-RLM is configured to true: 2> perform radio link monitoring on the SCG; 2> indicate to lower layers to perform beam failure detection on the PSCell; 1> else: 2> stop radio link monitoring on the SCG; 2> indicate to lower layers to stop beam failure detection on the PSCell; 2> stop timer T310 for this cell group, if running; 2> stop timer T312 for this cell group, if running; 2> reset the counters N310 and N311; 1> if the UE was in RRC_CONNECTED and the SCG was activated before receiving the message for which this procedure is initiated: 2> if SRB3 was configured before the reception of the RRCReconfiguration or of the RRCConnectionReconfiguration and SRB3 is not to be released according to any RadioBearerConfig included in the RRCReconfiguration or in the RRCConnectionReconfiguration as specified in TS 36.331[ Evolved Universal Terrestrial Radio Access (E-UTRA); Radio Resource Control (RRC); Protocol specification ] [10]: 3> trigger the PDCP entity of SRB3 to perform SDU discard as specified in TS 38.323[ NR; Packet Data Convergence Protocol (PDCP) specification ]  [5]; 3> re-establish the RLC entity of SRB3 as specified in TS 38.322[ NR; Radio Link Control (RLC) protocol specification ]  [4].