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TR 29.804 (CT3) ★
3GPP System Architecture Evolution (SAE)
CT WG3 Aspects

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V8.0.1 (Wzip) 2008/12 53 p.

Rapporteur: Miss Fernandez, Susana

This TR discusses and describes procedures and protocols from CT3 aspects of System Architecture Evolution (SAE) towards a higher-data-rate, lower-latency, packet-optimized system that supports multiple access technologies.

These CT3 aspects include the PCC enhancements (including impacts coming from the inter-access system handover, roaming and LBO), the QoS aspects for both 3GPP and non-3GPP networks, inter-working with external networks, MBMS and any other functions in the Evolved Packet Core (EPC) network that CT3 has impact on.

This TR is used as a placeholder for CT3 SAE materials to be moved to appropriate 3GPP technical specifications when it is sufficiently stable. As such, neither all the discussions within this TR are finished nor the procedures need to be completed. This TR may also contain some empty clauses. This TR will no longer be updated on a systematic manner and therefore contained information may become outdated.

full Table of Contents for TR 29.804 Word version: 8.0.1

1 Scope Word-p. 7

3 Definitions, symbols and abbreviations Word-p. 8

3.1 Definitions

3.3 Abbreviations Word-p. 9

4 Overview of CT3 Aspect of System Architecture Evolution

5 PCC Enhancements

5.1 Functional Entities Word-p. 11

5.1.2 PCRF Word-p. 12

5.1.2.1 General

5.1.4 DRA Word-p. 13

5.2.2 IP-CAN session establishment

5.2.2.1 General

5.2.2.2 Procedures over Gxa/Gxc Word-p. 14

5.2.2.2.1 Gateway control session establishment

5.2.3 IP-CAN session modification

5.2.3.1 General

5.2.3.2 Procedures over Gxa/Gxc Word-p. 15

5.2.3.2.1 Gateway control and QoS Rules provision

5.2.3.2.2 Gateway control session establishment

5.2.3.2.3 Gateway control session termination

5.2.3.2.4 Gateway control and QoS Rules request

5.2.3.2.5 Gateway control session relocation Word-p. 16

5.2.4 IP-CAN session termination

5.2.4.1 General

5.2.4.2 Procedures over Gxa/Gxc Word-p. 17

5.2.4.2.1 Gateway Control Session Termination

5.2.4.2.2 Gateway control and QoS Rules provision

5.2.5 PCRF discovery procedures

5.2.5.1 General

5.2.5.2 DRA Diameter functionality analysis and conclusion

5.2.5.2.1 Analysis Word-p. 18

5.2.5.2.1.1 Latency

5.2.5.2.1.1.1 Session Establishment Word-p. 19

5.2.5.2.1.1.2 Session Modification

5.2.5.2.1.1.3 Session Termination

5.2.5.2.1.2 Load Word-p. 20

5.2.5.2.1.3 Scalability Word-p. 23

5.2.5.2.1.4 Reliability Word-p. 25

5.2.5.2.1.5 Security Word-p. 26

5.2.5.2.1.6 Deployment

5.2.5.2.1.7 Maintaining Session state Word-p. 27

5.2.5.2.1.8 Enhancement to the standard agents Word-p. 28

5.2.5.2.1.8.1 Conclusion on Enhancement to the standard agents:

5.2.5.2.1.9 Impacts on existing interfaces Word-p. 29

5.2.5.2.1.10 Impacts on clients/servers Word-p. 30

5.2.5.2.1.11 Interoperability between operators with different DRA solutions

5.2.5.2.2 Conclusion

5.2.5.3 PCRF selection at attach by the network nodes (non-roaming case) Word-p. 31

5.2.5.4 PCRF selection by AF

5.2.5.5 PCRF selection in a roaming scenario

5.2.5.6 DRA information storage Word-p. 32

5.3 Protocol impacts

5.3.1 Protocol impacts on S9

5.3.1.1 General

5.3.1.1.1 H-PCRF discovery over S9 Word-p. 33

5.3.1.2 Commands

5.3.1.3 AVPs Word-p. 34

5.3.1.3.1 Charging-Rule-Report AVP (All access types)

5.3.1.3.2 Event-Trigger AVP (All access types)

5.3.1.4 Diameter Application Word-p. 35

5.3.2 Protocol impacts on Rx

5.3.2.1 General

5.3.2.1.1 PCRF discovery over Rx

5.3.2.2 Commands Word-p. 36

5.3.2.2.1 AA-Answer (AAA) command

5.3.3.2.2 Re-Auth-Request (RAR) command

5.3.3 Protocol impacts on Gx Gxa, Gxb, Gxc Word-p. 37

5.3.3.1 General

5.3.3.1.1 Allocation and Retention Priority (ARP)

5.3.3.1.2 PCRF discovery over Gx, Gxa and Gxc

5.3.3.1.3 Care-of-Address (CoA) Word-p. 38

5.3.3.2 Commands

5.3.3.2.1 CC-Request (CCR) Command

5.3.3.3 AVPs Word-p. 39

5.3.3.3.1 QoS-Information AVP

5.3.3.3.2 Allocation-and-Retention-Priority AVP

5.3.3.3.3 Access-Node-MCC-MNC AVP (All access types)

5.3.3.3.5 RAT-Type AVP Word-p. 40

5.3.3.3.6 CoA-IP-Address AVP Word-p. 41

5.3.3.3.7 CoA-IPv6-Address AVP

5.3.3.3.8 Tunnel-Information AVP

5.3.3.3.9 Tunnel-Header-Length AVP

5.3.3.3.10 Tunnel-Header-Filter AVP

5.3.3.4 Gxa protocoldelta Word-p. 42

5.3.3.4.1 Commands

5.3.3.4.2.1 General

5.3.3.4.2.2 Definition of new AVPs Word-p. 44

5.3.3.4.2.2.1 Access-Node-MCC-MNC AVP (All access types)

5.3.3.5 Gxb protocoldelta

5.3.3.6 Gxc protocoldelta

5.3.3.6.1 Commands

5.3.3.6.2.1 General

5.3.3.6.2.2 Definition of new AVPs Word-p. 46

5.3.3.6.2.2.1 Access-Node-MCC-MNC AVP (All access types)

5.3.3.7 Diameter Application

5.4 QoS Mapping for Trusted Non-3GPP IP-CANs Word-p. 47

5.4.1 Authorized IP QoS parameters to Authorized access network QoS parameters mapping in PCEF or BBERF

5.4.2 QoS parameter mapping in the UE for trusted non-3GPP IP-CANs

5.4.2.1 Framework for QoS mapping in the UE

5.4.2.2 SDP parameters to SDF QoS parameters mapping in UE Word-p. 48

6 Interworking between EPC and external PDNs Word-p. 49

6.1 Functional Entities

6.3 Protocol impacts

6.3.1 Protocol impacts on SGi

7 QoS mechanisms Word-p. 50

7.1 Functional Entities

7.2.1 Transport network level packet marking

7.3 Protocol impacts Word-p. 51

7.3.1 Protocol impacts on Gx

8.1 Functional Entities

8.2.1 Protocol for SGi-mb interface

8.2.2 Protocol for SGmb interface

8.2.3 Protocol for SGi interface

9 SAE impact on existing capabilities Word-p. 52

9.2 Lawful Interception

A Change history Word-p. 53