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full Table of Contents for  TS 23.501  Word version:   16.3.0

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1…   3…   4…   4.2.4   4.2.5…   4.2.8            4.2.9…   4.3…   4.3.3   4.3.4   4.3.5   4.4…   4.4.6…   4.4.8   5…   5.4…   5.6…   5.7…   5.8…   5.10…   5.16…   5.17   5.18…   5.27…   5.31   5.32   5.33   5.34   5.35…   6…   6.3…   7…   7.2…   8…   8.2.4   8.2.5…   8.3…   A…   D…   E…   F   G…   G.3   G.4…

 

5.32  Support for ATSSS [R16]
5.32.1  General
The ATSSS feature (Access Traffic Steering, Switching, Splitting) is an optional feature that may be supported by the UE and the 5GC network.
The ATSSS feature enables a multi-access PDU Connectivity Service, which can exchange PDUs between the UE and a data network by simultaneously using one 3GPP access network and one non-3GPP access network and two independent N3/N9 tunnels between the PSA and RAN/AN. The multi-access PDU Connectivity Service is realized by establishing a Multi-Access PDU (MA PDU) Session, i.e. a PDU Session that may have user-plane resources on two access networks.
5.32.2  Multi Access PDU SessionsWord-p. 287
5.32.3  Policy for ATSSS ControlWord-p. 289
5.32.4  QoS Support
5.32.5  Access Network Performance MeasurementsWord-p. 290
5.32.5.1  General principles
5.32.5.2  Round Trip Time MeasurementsWord-p. 291
5.32.5.3  Access Availability/Unavailability ReportWord-p. 292
5.32.5.4  Protocol stack for user plane measurements and measurement reportsWord-p. 293
Reproduction of 3GPP TS 23.501, Figure 5.32.5.4-1: UE/UPF measurements related protocol stack for 3GPP access
Figure 5.32.5.4-1: UE/UPF measurements related protocol stack for 3GPP access
Reproduction of 3GPP TS 23.501, Figure 5.32.5.4-2: UE/UPF measurements related protocol stack for non-3GPP access
Figure 5.32.5.4-2: UE/UPF measurements related protocol stack for non-3GPP access
5.32.6  Support of Steering Functionalities
5.32.7  Interworking with EPSWord-p. 297
5.32.8  ATSSS RulesWord-p. 298

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