6.2.2 Data PDU

38.3233GPPNRPacket Data Convergence Protocol (PDCP) specificationRelease 17TS

6.2.2.1 Data PDU for SRBs

Figure 6.2.2.1-1 shows the format of the PDCP Data PDU with 12 bits PDCP SN. This format is applicable for SRBs.

Figure 6.2.2.1-1: PDCP Data PDU format for SRBs

6.2.2.2 Data PDU for DRBs and MRBs with 12 bits PDCP SN

Figure 6.2.2.2-1 shows the format of the PDCP Data PDU with 12 bits PDCP SN. This format is applicable for UM DRBs, AM DRBs, UM MRBs and AM MRBs.

Figure 6.2.2.2-1: PDCP Data PDU format with 12 bits PDCP SN

6.2.2.3 Data PDU for DRBs and MRBs with 18 bits PDCP SN

Figure 6.2.2.3-1 shows the format of the PDCP Data PDU with 18 bits PDCP SN. This format is applicable for UM DRBs, AM DRBs, UM MRBs and AM MRBs.

Figure 6.2.2.3-1: PDCP Data PDU format for DRBs with 18 bits PDCP SN

6.2.2.4 Data PDU for sidelink DRBs for groupcast and broadcast, for the sidelink SRB0‎ and for the sidelink SRB4

Figure 6.2.2.4-1 shows the format of the PDCP Data PDU with 12 bits PDCP SN. This format is applicable for sidelink DRBs for groupcast and broadcast, for the sidelink SRB0 and for the sidelink SRB4.

Figure 6.2.2.4-1: PDCP Data PDU format for sidelink DRBs for groupcast and broadcast, for the sidelink SRB0‎ and for the sidelink SRB4

NOTE: There is no control PDU for SLRBs for groupcast and broadcast. Thus, there is no D/C field in the PDCP Data PDU format for SLRBs for groupcast and broadcast. SDU type is only applicable for sidelink DRB.

6.2.2.5 Data PDU for sidelink SRBs for unicast

Figure 6.2.2.5-1 shows the format of the PDCP Data PDU with 12 bits PDCP SN. This format is applicable for sidelink SRB1, SRB2 and SRB3 for unicast.

Figure 6.2.2.5-1: PDCP Data PDU format for sidelink SRB1, SRB2 and SRB3 for unicast

6.2.2.6 Data PDU for sidelink DRBs for unicast with 12 bits PDCP SN

Figure 6.2.2.6-1 shows the format of the PDCP Data PDU with 12 bits PDCP SN. This format is applicable for sidelink DRBs for unicast.

Figure 6.2.2.6-1: PDCP Data PDU format for sidelink DRBs for unicast with 12 bits PDCP SN

6.2.2.7 Data PDU for sidelink DRBs for unicast with 18 bits PDCP SN

Figure 6.2.2.7-1 shows the format of the PDCP Data PDU with 18 bits PDCP SN. This format is applicable for sidelink DRBs for unicast.

Figure 6.2.2.7-1: PDCP Data PDU format for sidelink DRBs for unicast with 18 bits PDCP SN