|
TECHNICAL SPECIFICATION
LTE;
Interface between the Control Plane and the User Plane nodes
(3GPP TS 29.244 version 15.4.0 Release 15)
---------------------- Page: 1 ----------------------
3GPP TS 29.244 version 15.4.0 Release 15 1 ETSI TS 129 244 V15.4.0 (2019-04)
Reference
RTS/TSGC-0429244vf40
Keywords
LTE
ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE
Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16
Siret N° 348 623 562 00017 - NAF 742 C
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° 7803/88
Important notice
The present document can be downloaded from:
The present document may be made available in electronic versions and/or in print. The content of any electronic and/or
print versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any
existing or perceived difference in contents between such versions and/or in print, the prevailing version of an ETSI
deliverable is the one made publicly available in PDF format at www.etsi.org/deliver.
Users of the present document should be aware that the document may be subject to revision or change of status.
Information on the current status of this and other ETSI documents is available at
If you find errors in the present document, please send your comment to one of the following services:
Copyright Notification
No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying
and microfilm except as authorized by written permission of ETSI.
The content of the PDF version shall not be modified without the written authorization of ETSI.
The copyright and the foregoing restriction extend to reproduction in all media.
© ETSI 2019.
All rights reserved.
TM TM TM
DECT , PLUGTESTS , UMTS and the ETSI logo are trademarks of ETSI registered for the benefit of its Members.
TM TM
3GPP and LTE are trademarks of ETSI registered for the benefit of its Members and
of the 3GPP Organizational Partners.
oneM2M™ logo is a trademark of ETSI registered for the benefit of its Members and
of the oneM2M Partners.
GSM and the GSM logo are trademarks registered and owned by the GSM Association.
ETSI
---------------------- Page: 2 ----------------------
3GPP TS 29.244 version 15.4.0 Release 15 2 ETSI TS 129 244 V15.4.0 (2019-04)
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
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (https://ipr.etsi.org/).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Trademarks
The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners.
ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no
right to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does
not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks.
Foreword
This Technical Specification (TS) has been produced by ETSI 3rd Generation Partnership Project (3GPP).
The present document may refer to technical specifications or reports using their 3GPP identities, UMTS identities or
GSM identities. These should be interpreted as being references to the corresponding ETSI deliverables.
The cross reference between GSM, UMTS, 3GPP and ETSI identities can be found under
.
Modal verbs terminology
In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and
"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of
provisions).
"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.
ETSI
---------------------- Page: 3 ----------------------
3GPP TS 29.244 version 15.4.0 Release 15 3 ETSI TS 129 244 V15.4.0 (2019-04)
Contents
Intellectual Property Rights . 2
Foreword . 2
Modal verbs terminology . 2
Foreword . 11
1 Scope . 12
2 References . 12
3 Definitions, symbols and abbreviations . 14
3.1 Definitions . 14
3.2 Abbreviations . 14
4 Protocol Stack . 15
4.1 Introduction . 15
4.2 UDP Header and Port Numbers . 16
4.2.1 General . 16
4.2.2 Request Message . 16
4.2.3 Response Message . 16
4.3 IP Header and IP Addresses . 16
4.3.1 General . 16
4.3.2 Request Message . 16
4.3.3 Response Message . 17
4.4 Layer 2 . 17
4.5 Layer 1 . 17
5 General description. 17
5.1 Introduction . 17
5.2 Packet Forwarding Model . 17
5.2.1 General . 17
5.2.1A Packet Detection Rule Handling . 19
5.2.1A.1 General . 19
5.2.1A.2 PDI Optimization . 20
5.2.1A.2A Provisioning of SDF filters . 20
5.2.1A.3 Bidirectional SDF Filters . 21
5.2.2 Usage Reporting Rule Handling . 21
5.2.2.1 General . 21
5.2.2.2 Provisioning of Usage Reporting Rule in the UP function . 21
5.2.2.2.1 General . 21
5.2.2.2.2 Credit pooling (for EPC) . 25
5.2.2.3 Reporting of Usage Report to the CP function . 25
5.2.2.3.1 General . 25
5.2.2.3.2 Credit pooling . 28
5.2.2.4 Reporting of Linked Usage Reports to the CP function . 28
5.2.3 Forwarding Action Rule Handling . 28
5.2.3.1 General . 28
5.2.4 Buffering Action Rule Handling . 29
5.2.4.1 General . 29
5.2.4.2 Provisioning of Buffering Action Rule in the UP function . 30
5.2.5 QoS Enforcement Rule Handling . 30
5.2.5.1 General . 30
5.2.5.2 Provisioning of QoS Enforcement Rule in the UP function . 30
5.2.6 Combined SGW/PGW Architecture . 31
5.3 Data Forwarding between the CP and UP Functions . 31
5.3.1 General . 31
5.3.2 Sending of End Marker Packets . 32
5.3.3 Forwarding of Packets Subject to Buffering in the CP Function . 32
5.3.3.1 General . 32
5.3.3.2 Forwarding of Packets from the UP Function to the CP Function . 33
ETSI
---------------------- Page: 4 ----------------------
3GPP TS 29.244 version 15.4.0 Release 15 4 ETSI TS 129 244 V15.4.0 (2019-04)
5.3.3.3 Forwarding of Packets from the CP Function to the UP Function . 33
5.3.4 Data Forwarding between the CP and UP Functions with one PFCP-u Tunnel per UP Function or
PDN . 34
5.3.4.1 General . 34
5.3.4.2 Forwarding of Packets from the UP Function to the CP Function . 34
5.3.4.3 Forwarding of Packets from the CP Function to the UP Function . 34
5.4 Policy and Charging Control . 35
5.4.1 General . 35
5.4.2 Service Detection and Bearer Binding . 35
5.4.3 Gating Control . 35
5.4.4 QoS Control . 35
5.4.5 DL Flow Level Marking for Application Detection . 36
5.4.6 Usage Monitoring . 37
5.4.7 Traffic Redirection . 37
5.4.8 Traffic Steering . 38
5.4.9 Provisioning of Predefined PCC/ADC Rules . 38
5.4.10 Charging . 39
5.4.11 (Un)solicited Application Reporting . 40
5.4.12 Service Identification for Improved Radio Utilisation for GERAN . 41
5.4.13 Transport Level Marking . 41
5.5 F-TEID Allocation and Release . 41
5.5.1 General . 41
5.5.2 F-TEID allocation in the CP function . 41
5.5.3 F-TEID allocation in the UP function . 41
5.6 PFCP Session Handling . 42
5.6.1 General . 42
5.6.2 Session Endpoint Identifier Handling . 42
5.6.3 Modifying the Rules of an Existing PFCP Session . 42
5.7 Support of Lawful Interception . 42
5.8 PFCP Association . 43
5.8.1 General . 43
5.8.2 Behaviour with an Established PFCP Association. 43
5.8.3 Behaviour without an Established PFCP Association . 44
5.9 Usage of Vendor-specific IE . 44
5.10 Error Indication Handling . 44
5.11 User plane inactivity detection and reporting . 44
5.12 Suspend and Resume Notification procedures . 45
5.13 Ethernet traffic (for 5GC) . 45
5.13.1 General . 45
5.13.2 ARP or IPv6 Neighbour Advertisement Proxying in SMF . 46
5.13.3 ARP or IPv6 Neighbour Advertisement Proxying in UPF . 46
5.13.3A Provisioning of MAC addresses and SDF filters in Ethernet Packet Filters . 46
5.13.4 Bidirectional Ethernet Filters . 47
5.13.5 Reporting of UE MAC addresses to the SMF . 47
5.14 Support IPv6 Prefix Delegation. 47
5.15 Signalling based Trace (De)Activation . 48
5.16 Framed Routing . 48
5.17 5G UPF (for 5GC) . 48
5.17.1 Introduction. 48
5.17.2 Uplink Classifier and Branching Point . 48
5.17.3 Data Forwarding during handovers between 5GS and EPS . 49
6 Procedures . 49
6.1 Introduction . 49
6.2 PFCP Node Related Procedures . 49
6.2.1 General . 49
6.2.2 Heartbeat Procedure . 50
6.2.2.1 General . 50
6.2.2.2 Heartbeat Request . 50
6.2.2.3 Heartbeat Response . 50
6.2.3 Load Control Procedure . 50
6.2.3.1 General . 50
ETSI
---------------------- Page: 5 ----------------------
3GPP TS 29.244 version 15.4.0 Release 15 5 ETSI TS 129 244 V15.4.0 (2019-04)
6.2.3.2 Principles . 50
6.2.3.3 Load Control Information . 50
6.2.3.3.1 General Description . 50
6.2.3.3.2 Parameters . 51
6.2.3.3.2.1 Load Control Sequence Number . 51
6.2.3.3.2.2 Load Metric. 51
6.2.3.3.3 Frequency of Inclusion . 52
6.2.4 Overload Control Procedure . 52
6.2.4.1 General . 52
6.2.4.2 Principles . 52
6.2.4.3 Overload Control Information . 53
6.2.4.3.1 General Description . 53
6.2.4.3.2 Parameters . 54
6.2.4.3.2.1 Overload Control Sequence Number . 54
6.2.4.3.2.2 Period of Validity . 54
6.2.4.3.2.3 Overload Reduction Metric . 55
6.2.4.3.3 Frequency of Inclusion . 55
6.2.4.4 Message Throttling. 56
6.2.4.4.1 General . 56
6.2.4.4.2 Throttling algorithm – "Loss" . 56
6.2.4.4.2.1 Description . 56
6.2.4.5 Message Prioritization . 56
6.2.4.5.1 Description . 56
6.2.4.5.2 Based on the Message Priority Signalled in the PFCP Message . 57
6.2.5 PFCP PFD Management Procedure . 57
6.2.5.1 General . 57
6.2.5.2 CP Function Behaviour . 57
6.2.5.3 UP Function Behaviour . 58
6.2.6 PFCP Association Setup Procedure . 58
6.2.6.1 General . 58
6.2.6.2 PFCP Association Setup Initiated by the CP Function . 58
6.2.6.2.1 CP Function Behaviour . 58
6.2.6.2.2 UP Function behaviour . 59
6.2.6.3 PFCP Association Setup Initiated by the UP Function . 59
6.2.6.3.1 UP Function Behaviour . 59
6.2.6.3.2 CP Function Behaviour . 59
6.2.7 PFCP Association Update Procedure . 59
6.2.7.1 General . 59
6.2.7.2 PFCP Association Update Procedure Initiated by the CP Function . 60
6.2.7.2.1 CP Function Behaviour . 60
6.2.7.2.2 UP Function Behaviour . 60
6.2.7.3 PFCP Association Update Procedure Initiated by UP Function . 60
6.2.7.3.1 UP Function Behaviour . 60
6.2.7.3.2 CP Function Behaviour .
...