5.10 Activation/Deactivation of PDCP duplication

38.3213GPPMedium Access Control (MAC) protocol specificationNRRelease 17TS

If one or more DRBs are configured with PDCP duplication, the network may activate and deactivate the PDCP duplication for all or a subset of associated RLC entities for the configured DRB(s).

The PDCP duplication for the configured DRB(s) is activated and deactivated by:

– receiving the Duplication Activation/Deactivation MAC CE described in clause 6.1.3.11;

– receiving the Duplication RLC Activation/Deactivation MAC CE described in clause 6.1.3.32;

– indication by RRC.

The PDCP duplication for all or a subset of associated RLC entities for the configured DRB(s) is activated and deactivated by:

– receiving the Duplication RLC Activation/Deactivation MAC CE described in clause 6.1.3.32;

– indication by RRC.

The PDCP duplication for all associated RLC entities for the configured DRB(s) is activated by:

– receiving an uplink grant addressed to CS-RNTI with NDI=1 for a logical channel associated with the DRB configured with survivalTimeStateSupport, described in clause 5.4.1.

The MAC entity shall for each DRB configured with PDCP duplication:

1> if a Duplication Activation/Deactivation MAC CE is received activating the PDCP duplication of the DRB:

2> indicate the activation of PDCP duplication of the DRB to upper layers.

1> if a Duplication Activation/Deactivation MAC CE is received deactivating the PDCP duplication of the DRB:

2> indicate the deactivation of PDCP duplication of the DRB to upper layers.

1> if a Duplication RLC Activation/Deactivation MAC CE is received activating PDCP duplication for associated RLC entities of a DRB configured with PDCP duplication:

2> indicate the activation of PDCP duplication for the indicated secondary RLC entity(ies) of the DRB to upper layers.

1> if a Duplication RLC Activation/Deactivation MAC CE is received deactivating PDCP duplication for associated RLC entities of a DRB configured with PDCP duplication:

2> indicate the deactivation of PDCP duplication for the indicated secondary RLC entity(ies) of the DRB to upper layers.

1> if activation of a PDCP duplication for all configured RLC entities is triggered for the DRB as specified in clause 5.4.1:

2> indicate the activation of PDCP duplication for all configured RLC entities of the DRB to upper layers.