Contents
Foreword...................................................................................................................................................4
1 Scope......................................................................................................................................................5
2 References..............................................................................................................................................5
3 Definitions, symbols and abbreviations..................................................................................................5
3.1 Definitions..............................................................................................................................................................5
3.2 Abbreviations.........................................................................................................................................................5
4 General...................................................................................................................................................6
4.1 Introduction............................................................................................................................................................6
4.2 SDAP architecture..................................................................................................................................................6
4.2.1 SDAP structure....................................................................................................................................................6
4.2.2 SDAP entities......................................................................................................................................................6
4.3 Services..................................................................................................................................................................7
4.3.1 Services provided to upper layers.......................................................................................................................7
4.3.2 Services expected from lower layers...................................................................................................................7
4.4 Functions................................................................................................................................................................8
5 SDAP procedures...................................................................................................................................8
5.1 SDAP entity handling............................................................................................................................................8
5.1.1 SDAP entity establishment.................................................................................................................................8
5.1.2 SDAP entity release............................................................................................................................................8
5.2 Data transfer...........................................................................................................................................................8
5.2.1 Uplink 8
5.2.2 Downlink.............................................................................................................................................................9
5.3 QoS flow to DRB mapping....................................................................................................................................9
5.3.1 Configuration......................................................................................................................................................9
5.3.2 Reflective mapping.............................................................................................................................................9
5.3.3 DRB release......................................................................................................................................................10
5.4 RQI handling........................................................................................................................................................10
6 Protocol data units, formats, and parameters........................................................................................10
6.1 Protocol data units................................................................................................................................................10
6.1.1 Data PDU..........................................................................................................................................................10
6.1.2 Control PDU......................................................................................................................................................10
6.2 Formats.................................................................................................................................................................10
6.2.1 General 10
6.2.2 Data PDU..........................................................................................................................................................11
6.2.2.1 Data PDU without SDAP header...................................................................................................................11
6.2.2.2 DL Data PDU with SDAP header..................................................................................................................11
6.2.2.3 UL Data PDU with SDAP header..................................................................................................................11
6.2.3 End-Marker Control PDU.................................................................................................................................11
6.3 Parameters............................................................................................................................................................12
6.3.1 General 12
6.3.2 Data 12
6.3.3 D/C 12
6.3.4 QFI 12
6.3.5 R 12
6.3.6 RQI 12
6.3.7 RDI 13
Annex A (informative): Change history..............................................................................................13
3GPP
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