Section: 5.24 Activation/Deactivation of PDCP duplication
Content: If one or more DRBs are configured with PDCP duplication, the network may activate and deactivate the PDCP duplication for the configured DRB(s) by sending the PDCP Duplication Activation/Deactivation MAC CE described in clause 6.1.3.17. In addition, PDCP duplication for DRB(s) may be activated upon configuration by upper layers (TS 36.331[ Evolved Universal Terrestrial Radio Access (E-UTRA); Radio Resource Control (RRC); Protocol specification ]  [8]). Upon reception of a PDCP Duplication Activation/Deactivation MAC CE, the MAC entity shall for each DRB configured with duplication: - if the MAC CE indicates that PDCP duplication for the DRB shall be activated: - indicate the activation of PDCP duplication for the DRB to upper layers. - if the MAC CE indicates that PDCP duplication for the DRB shall be deactivated: - indicate the deactivation of PDCP duplication for the DRB to upper layers.