ETSI TS 129 244 V15.8.0 (2020-01)

LTE; 5G; Interface between the Control Plane and the User Plane nodes (3GPP TS 29.244 version 15.8.0 Release 15)

RTS/TSGC-0429244vf80

General Information

• Status: Published
• Publication Date: 14-Jan-2020
• Technical Committee: 3GPP CT 4 - MAP/CAMEL/GTP/BCH/SS/TrFO/IMS/GUP/WLAN (formely CN4)
• Current Stage: 12 - Completion
• Completion Date: 15-Jan-2020

Standards Content (Sample)

ETSI TS 129 244 V15.8.0 (2020-01)






TECHNICAL SPECIFICATION
LTE;
5G;
Interface between the Control Plane and the User Plane nodes
(3GPP TS 29.244 version 15.8.0 Release 15)

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3GPP TS 29.244 version 15.8.0 Release 15 1 ETSI TS 129 244 V15.8.0 (2020-01)



Reference
RTS/TSGC-0429244vF80
Keywords
5G,LTE
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3GPP TS 29.244 version 15.8.0 Release 15 2 ETSI TS 129 244 V15.8.0 (2020-01)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
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Legal Notice
This Technical Specification (TS) has been produced by ETSI 3rd Generation Partnership Project (3GPP).
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Modal verbs terminology
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"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.
ETSI

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3GPP TS 29.244 version 15.8.0 Release 15 3 ETSI TS 129 244 V15.8.0 (2020-01)
Contents
Intellectual Property Rights . 2
Legal Notice . 2
Modal verbs terminology . 2
Foreword . 11
1 Scope . 13
2 References . 13
3 Definitions, symbols and abbreviations . 15
3.1 Definitions . 15
3.2 Abbreviations . 15
4 Protocol Stack . 16
4.1 Introduction . 16
4.2 UDP Header and Port Numbers . 17
4.2.1 General . 17
4.2.2 Request Message . 18
4.2.3 Response Message . 18
4.3 IP Header and IP Addresses . 18
4.3.1 General . 18
4.3.2 Request Message . 18
4.3.3 Response Message . 18
4.4 Layer 2 . 18
4.5 Layer 1 . 18
5 General description. 19
5.1 Introduction . 19
5.2 Packet Forwarding Model . 19
5.2.1 General . 19
5.2.1A Packet Detection Rule Handling . 21
5.2.1A.1 General . 21
5.2.1A.2 PDI Optimization . 21
5.2.1A.2A Provisioning of SDF filters . 22
5.2.1A.3 Bidirectional SDF Filters . 22
5.2.1A.4 Application detection with PFD . 23
5.2.2 Usage Reporting Rule Handling . 23
5.2.2.1 General . 23
5.2.2.2 Provisioning of Usage Reporting Rule in the UP function . 23
5.2.2.2.1 General . 23
5.2.2.2.2 Credit pooling (for EPC) . 27
5.2.2.3 Reporting of Usage Report to the CP function . 27
5.2.2.3.1 General . 27
5.2.2.3.2 Credit pooling . 30
5.2.2.4 Reporting of Linked Usage Reports to the CP function . 30
5.2.3 Forwarding Action Rule Handling . 31
5.2.3.1 General . 31
5.2.4 Buffering Action Rule Handling . 32
5.2.4.1 General . 32
5.2.4.2 Provisioning of Buffering Action Rule in the UP function . 32
5.2.5 QoS Enforcement Rule Handling . 33
5.2.5.1 General . 33
5.2.5.2 Provisioning of QoS Enforcement Rule in the UP function . 33
5.2.6 Combined SGW/PGW Architecture . 33
5.3 Data Forwarding between the CP and UP Functions . 33
5.3.1 General . 33
5.3.2 Sending of End Marker Packets . 34
5.3.3 Forwarding of Packets Subject to Buffering in the CP Function . 35
ETSI

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3GPP TS 29.244 version 15.8.0 Release 15 4 ETSI TS 129 244 V15.8.0 (2020-01)
5.3.3.1 General . 35
5.3.3.2 Forwarding of Packets from the UP Function to the CP Function . 35
5.3.3.3 Forwarding of Packets from the CP Function to the UP Function . 36
5.3.4 Data Forwarding between the CP and UP Functions with one PFCP-u Tunnel per UP Function or
PDN . 36
5.3.4.1 General . 36
5.3.4.2 Forwarding of Packets from the UP Function to the CP Function . 36
5.3.4.3 Forwarding of Packets from the CP Function to the UP Function . 37
5.4 Policy and Charging Control . 37
5.4.1 General . 37
5.4.2 Service Detection and Bearer/QoS Flow Binding . 37
5.4.3 Gating Control . 38
5.4.4 QoS Control . 38
5.4.5 DL Flow Level Marking for Application Detection . 39
5.4.6 Usage Monitoring . 39
5.4.7 Traffic Redirection . 40
5.4.8 Traffic Steering . 41
5.4.9 Provisioning of Predefined PCC/ADC Rules . 41
5.4.10 Charging . 42
5.4.11 (Un)solicited Application Reporting . 43
5.4.12 Service Identification for Improved Radio Utilisation for GERAN . 44
5.4.13 Transport Level Marking . 44
5.5 F-TEID Allocation and Release . 44
5.5.1 General . 44
5.5.2 F-TEID allocation in the CP function . 45
5.5.3 F-TEID allocation in the UP function . 45
5.6 PFCP Session Handling . 45
5.6.1 General . 45
5.6.2 Session Endpoint Identifier Handling . 45
5.6.3 Modifying the Rules of an Existing PFCP Session . 45
5.7 Support of Lawful Interception . 46
5.7.1 General . 46
5.7.2 Lawful Interception in EPC . 46
5.7.3 Lawful Interception in 5GC . 46
5.8 PFCP Association . 46
5.8.1 General . 46
5.8.2 Behaviour with an Established PFCP Association. 47
5.8.3 Behaviour without an Established PFCP Association . 48
5.9 Usage of Vendor-specific IE . 48
5.10 Error Indication Handling . 48
5.11 User plane inactivity detection and reporting . 48
5.12 Suspend and Resume Notification procedures . 49
5.13 Ethernet traffic (for 5GC) . 49
5.13.1 General . 49
5.13.2 Address Resolution Protocol or IPv6 Neighbour Solicitation Response by SMF . 50
5.13.3 Address Resolution Protocol or IPv6 Neighbour Solicitation Response by UPF . 50
5.13.3A Provisioning of MAC addresses and SDF filters in Ethernet Packet Filters . 51
5.13.4 Bidirectional Ethernet Filters . 51
5.13.5 Reporting of UE MAC addresses to the SMF . 51
5.14 Support IPv6 Prefix Delegation. 52
5.15 Signalling based Trace (De)Activation . 52
5.16 Framed Routing . 52
5.17 5G UPF (for 5GC) . 52
5.17.1 Introduction. 52
5.17.2 Uplink Classifier and Branching Point . 52
5.17.3 Data Forwarding during handovers between 5GS and EPS . 53
6 Procedures . 54
6.1 Introduction . 54
6.2 PFCP Node Related Procedures . 54
6.2.1 General . 54
6.2.2 Heartbeat Procedure . 54
ETSI

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3GPP TS 29.244 version 15.8.0 Release 15 5 ETSI TS 129 244 V15.8.0 (2020-01)
6.2.2.1 General . 54
6.2.2.2 Heartbeat Request . 54
6.2.2.3 Heartbeat Response . 54
6.2.3 Load Control Procedure . 54
6.2.3.1 General . 54
6.2.3.2 Principles . 54
6.2.3.3 Load Control Information . 55
6.2.3.3.1 General Description . 55
6.2.3.3.2 Parameters . 55
6.2.3.3.2.1 Load Control Sequence Number . 55
6.2.3.3.2.2 Load Metric. 56
6.2.3.3.3 Frequency of Inclusion . 56
6.2.4 Overload Control Procedure . 57
6.2.4.1 General . 57
6.2.4.2 Principles . 57
6.2.4.3 Overload Control Information . 57
6.2.4.3.1 General Description . 57
6.2.4.3.2 Parameters . 58
6.2.4.3.2.1 Overload Control Sequence Number . 58
6.2.4.3.2.2 Period of Validity . 59
6.2.4.3.2.3 Overload Reduction Metric . 59
6.2.4.3.3 Frequency of Inclusion . 60
6.2.4.4 Message Throttling. 60
6.2.4.4.1 General . 60
6.2.4.4.2 Throttling algorithm – "Loss" . 60
6.2.4.4.2.1 Description . 60
6.2.4.5 Message Prioritization . 61
6.2.4.5.1 Description . 61
6.2.4.5.2 Based on the Message Priority Signalled in the PFCP Message . 61
6.2.5 PFCP PFD Management Procedure . 62
6.2.5.1 General . 62
6.2.5.2 CP Function Behaviour . 62
6.2.5.3 UP Function Behaviour . 62
6.2.6 PFCP Association Setup Procedure . 63
6.2.6.1 General . 63
6.2.6.2 PFCP Association Setup Initiated by the CP Function . 63
6.2.6.2.1 CP Function Behaviour . 63
6.2.6.2.2 UP Function behaviour . 63
6.2.6.3 PFCP Association Setup Initiated by the UP Function . 64
6.2.6.3.1 UP Function Behaviour . 64
6.2.6.3.2 CP Function Behaviour . 64
6.2.7 PFCP Association Update Procedure . 64
6.2.7.1 General . 64
6.2.7.2 PFCP Association Update Procedure Initiated by the CP Function . 64
6.2.7.2.1 CP Function Behaviour .
...