ETSI TS 129 244 V17.6.0 (2022-10)

LTE; 5G; Interface between the Control Plane and the User Plane nodes (3GPP TS 29.244 version 17.6.0 Release 17)

RTS/TSGC-0429244vh60

General Information

• Status: Not Published
• Technical Committee: 3GPP CT 4 - MAP/CAMEL/GTP/BCH/SS/TrFO/IMS/GUP/WLAN (formely CN4)
• Current Stage: 12 - Citation in the OJ (auto-insert)
• Completion Date: 06-Oct-2022

Standards Content (Sample)

ETSI TS 129 244 V17.6.0 (2022-10)






TECHNICAL SPECIFICATION
LTE;
5G;
Interface between the Control Plane and the User Plane nodes
(3GPP TS 29.244 version 17.6.0 Release 17)

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3GPP TS 29.244 version 17.6.0 Release 17 1 ETSI TS 129 244 V17.6.0 (2022-10)

Reference
RTS/TSGC-0429244vh60
Keywords
5G,LTE
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All rights reserved.

ETSI

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3GPP TS 29.244 version 17.6.0 Release 17 2 ETSI TS 129 244 V17.6.0 (2022-10)
Intellectual Property Rights
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®
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Legal Notice
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ETSI

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3GPP TS 29.244 version 17.6.0 Release 17 3 ETSI TS 129 244 V17.6.0 (2022-10)
Contents
Intellectual Property Rights . 2
Legal Notice . 2
Modal verbs terminology . 2
Foreword . 15
1 Scope . 17
2 References . 17
3 Definitions, symbols and abbreviations . 20
3.1 Definitions . 20
3.2 Abbreviations . 20
4 Protocol Stack . 22
4.1 Introduction . 22
4.2 UDP Header and Port Numbers . 23
4.2.1 General . 23
4.2.2 Request Message . 23
4.2.3 Response Message . 23
4.3 IP Header and IP Addresses . 23
4.3.1 General . 23
4.3.2 Request Message . 23
4.3.3 Response Message . 24
4.4 Layer 2 . 24
4.5 Layer 1 . 24
5 General description. 24
5.1 Introduction . 24
5.2 Packet Forwarding Model . 24
5.2.1 General . 24
5.2.1A Packet Detection Rule Handling . 27
5.2.1A.1 General . 27
5.2.1A.2 PDI Optimization . 28
5.2.1A.2A Provisioning of SDF filters . 28
5.2.1A.3 Bidirectional SDF Filters . 29
5.2.1A.4 Application detection with PFD . 29
5.2.2 Usage Reporting Rule Handling . 29
5.2.2.1 General . 29
5.2.2.2 Provisioning of Usage Reporting Rule in the UP function . 30
5.2.2.2.1 General . 30
5.2.2.2.2 Credit pooling (for EPC) . 34
5.2.2.3 Reporting of Usage Report to the CP function . 35
5.2.2.3.1 General . 35
5.2.2.3.2 Credit pooling . 39
5.2.2.3.3 Traffic Usage Reporting with Redundant Transmission . 40
5.2.2.4 Reporting of Linked Usage Reports to the CP function . 40
5.2.2.5 End Marker Reception Reporting . 40
5.2.3 Forwarding Action Rule Handling . 41
5.2.3.1 General . 41
5.2.4 Buffering Action Rule Handling . 43
5.2.4.1 General . 43
5.2.4.2 Provisioning of Buffering Action Rule in the UP function . 43
5.2.5 QoS Enforcement Rule Handling . 44
5.2.5.1 General . 44
5.2.5.2 Provisioning of QoS Enforcement Rule in the UP function . 44
5.2.5.3 Reflective QoS (for 5GC) . 44
5.2.6 Combined SGW/PGW Architecture . 44
5.2.7 Multi-Access Rule Handling (for 5GC) . 45
ETSI

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3GPP TS 29.244 version 17.6.0 Release 17 4 ETSI TS 129 244 V17.6.0 (2022-10)
5.2.7.1 General . 45
5.2.8 Session Reporting Rule Handling . 46
5.2.8.1 General . 46
5.2.8.2 Provisioning of Session Reporting Rule in the UP function . 46
5.2.8.2.1 General . 46
5.2.8.3 Reporting of Session Report to the CP function . 46
5.2.8.3.1 General . 46
5.2.9 Handling of Rules that cannot be activated . 46
5.3 Data Forwarding between the CP and UP Functions . 47
5.3.1 General . 47
5.3.2 Sending of End Marker Packets . 48
5.3.3 Forwarding of Packets Subject to Buffering in the CP Function . 48
5.3.3.1 General . 48
5.3.3.2 Forwarding of Packets from the UP Function to the CP Function . 49
5.3.3.3 Forwarding of Packets from the CP Function to the UP Function . 49
5.3.4 Data Forwarding between the CP and UP Functions with one PFCP-u Tunnel per UP Function or
PDN . 50
5.3.4.1 General . 50
5.3.4.2 Forwarding of Packets from the UP Function to the CP Function . 50
5.3.4.3 Forwarding of Packets from the CP Function to the UP Function . 50
5.3.5 Forwarding of user data using Control Plane CIoT 5GS Optimisation (for 5GC) . 51
5.3.5.1 General . 51
5.3.5.2 Forwarding of Packets from the UP Function to the CP Function . 51
5.3.5.3 Forwarding of Packets from the CP Function to the UP Function . 51
5.4 Policy and Charging Control . 51
5.4.1 General . 51
5.4.2 Service Detection and Bearer/QoS Flow Binding . 52
5.4.3 Gating Control . 52
5.4.4 QoS Control . 53
5.4.5 DL Flow Level Marking for Application Detection . 53
5.4.6 Usage Monitoring . 54
5.4.7 Traffic Redirection . 54
5.4.8 Traffic Steering . 55
5.4.9 Provisioning of Predefined PCC/ADC Rules . 56
5.4.10 Charging . 57
5.4.11 (Un)solicited Application Reporting . 58
5.4.12 Service Identification for Improved Radio Utilisation for GERAN . 59
5.4.13 Transport Level Marking . 59
5.4.14 Deferred PDR activation and deactivation . 59
5.4.15 Packet Rate enforcement . 60
5.4.15.1 General . 60
5.4.15.2 Packet rate enforcement over Sxb and N4 interfaces . 60
5.4.15.3 PGW and SMF behaviour . 61
5.4.16 QoS differentiation for Stand-alone Non-Public Network (SNPN) . 62
5.4.16.1 General . 62
5.4.16.2 Access to PLMN services via SNPN . 62
5.4.16.3 Access to SNPN services via PLMN . 62
5.5 F-TEID Allocation and Release . 63
5.5.1 General . 63
5.5.2 Void . 63
5.5.3 F-TEID allocation in the UP function . 63
5.6 PFCP Session Handling . 64
5.6.1 General . 64
5.6.2 Session Endpoint Identifier Handling . 64
5.6.3 Modifying the Rules of an Existing PFCP Session . 64
5.7 Support of Lawful Interception . 64
5.7.1 General . 64
5.7.2 Lawful Interception in EPC . 64
5.7.3 Lawful Interception in 5GC . 65
5.8 PFCP Association . 65
5.8.1 General . 65
5.8.2 Behaviour with an Established PFCP Association. 66
ETSI

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3GPP TS 29.244 version 17.6.0 Release 17 5 ETSI TS 129 244 V17.6.0 (2022-10)
5.8.3 Behaviour without an Established PFCP Association . 66
5.9 Usage of Vendor-specific IE . 67
5.10 Error Indication Handling . 67
5.11 User plane inactivity detection and reporting . 67
5.11.1 General . 67
5.11.2 User plane inactivity detection and reporting per PDN connection or PDU session . 67
5.11.3 User plane inactivity detection and reporting per PDR . 68
5.12 Suspend and Resume Notification procedures . 68
5.13 Ethernet traffic (for 5GC) . 68
5.13.1 General . 68
5.13.2 Address Resolution Protocol or IPv6 Neighbour Solicitation Response by SMF . 69
5.13.3 Address Resolution Protocol or IPv6 Neighbour Solicitation Response by UPF . 70
5.13.3A Provisioning of MAC addresses and SDF filters in Ethernet Packet Filters . 70
5.13.4 Bidirectional Ethernet Filters . 70
5.13.5 Reporting of UE MAC addresses to the SMF . 71
5.13.6 Ethernet PDU session anchor relocation . 71
5.14 Support IPv6 Prefix Delegation. 72
5.15 Signalling based Trace (De)Activation . 72
5.16 Framed Routing . 72
5.17 5G UPF (for 5GC) . 73
5.17.1 Introduction. 73
5.17.2 Uplink Classifier and Branching Point . 73
5.17.3 Data forwarding during handovers between 5GS and EPS . 73
5.18 Enhanced PFCP Association Release . 74
5.18.1 General . 74
5.18.2 UP Function Initiated PFCP Session Release . 75
5.19 Activation and Deactivation of Pre-defined PDRs . 75
5.20 Support of Access Traffic Steering, Switching and Splitting for 5GC . 76
5.20.1 General . 76
5.20.2 MPTCP functionality . 77
5.20.2.1 General . 77
5.20.2.2 Activate MPTCP functionality and Exchange MPTCP Parameters . 77
5.20.2.3 Control of Multipath TCP Connection Establishment by MPTCP Proxy . 77
5.20.2.4 Traffic Steering and IP Translation by MPTCP Proxy . 78
5.20.3 ATSSS-LL functionality .
...