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Content for TR 29.804 Word version: 8.0.1

1… 2…

2 References p. 7

3 Definitions, symbols and abbreviations p. 8

3.1 Definitions p. 8

3.2 Symbols p. 8

3.3 Abbreviations p. 9

4 Overview of CT3 Aspect of System Architecture Evolution p. 9

5 PCC Enhancements p. 9

5.1 Functional Entities p. 11

5.1.1 AF p. 11

5.1.2 PCRF p. 12

5.1.2.1 General p. 12

5.1.2.2 H-PCRF p. 12

5.1.2.3 V-PCRF p. 12

5.1.3 PCEF p. 12

5.1.4 DRA p. 13

5.1.5 BBERF p. 13

5.2 Procedures p. 13

5.2.1 General p. 13

5.2.2 IP-CAN session establishment p. 13

5.2.2.1 General p. 13

5.2.2.2 Procedures over Gxa/Gxc p. 14

5.2.2.2.1 Gateway control session establishment p. 14

5.2.3 IP-CAN session modification p. 14

5.2.3.1 General p. 14

5.2.3.2 Procedures over Gxa/Gxc p. 15

5.2.3.2.1 Gateway control and QoS Rules provision p. 15

5.2.3.2.2 Gateway control session establishment p. 15

5.2.3.2.3 Gateway control session termination p. 15

5.2.3.2.4 Gateway control and QoS Rules request p. 15

5.2.3.2.5 Gateway control session relocation p. 16

5.2.4 IP-CAN session termination p. 16

5.2.4.1 General p. 16

5.2.4.2 Procedures over Gxa/Gxc p. 17

5.2.4.2.1 Gateway Control Session Termination p. 17

5.2.4.2.2 Gateway control and QoS Rules provision p. 17

5.2.5 PCRF discovery procedures p. 17

5.2.5.1 General p. 17

5.2.5.2 DRA Diameter functionality analysis and conclusion p. 17

5.2.5.2.1 Analysis p. 18

5.2.5.2.1.1 Latency p. 18

5.2.5.2.1.1.1 Session Establishment p. 19

5.2.5.2.1.1.2 Session Modification p. 19

5.2.5.2.1.1.3 Session Termination p. 19

5.2.5.2.1.2 Load p. 20

5.2.5.2.1.3 Scalability p. 23

5.2.5.2.1.4 Reliability p. 25

5.2.5.2.1.5 Security p. 26

5.2.5.2.1.6 Deployment p. 26

5.2.5.2.1.7 Maintaining Session state p. 27

5.2.5.2.1.8 Enhancement to the standard agents p. 28

5.2.5.2.1.8.1 Conclusion on Enhancement to the standard agents: p. 28

5.2.5.2.1.9 Impacts on existing interfaces p. 29

5.2.5.2.1.10 Impacts on clients/servers p. 30

5.2.5.2.1.11 Interoperability between operators with different DRA solutions p. 30

5.2.5.2.2 Conclusion p. 30

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

5.2.5.4 PCRF selection by AF p. 31

5.2.5.5 PCRF selection in a roaming scenario p. 31

5.2.5.6 DRA information storage p. 32

5.3 Protocol impacts p. 32

5.3.1 Protocol impacts on S9 p. 32

5.3.1.1 General p. 32

5.3.1.1.1 H-PCRF discovery over S9 p. 33

5.3.1.2 Commands p. 33

5.3.1.3 AVPs p. 34

5.3.1.3.1 Charging-Rule-Report AVP (All access types) p. 34

5.3.1.3.2 Event-Trigger AVP (All access types) p. 34

5.3.1.4 Diameter Application p. 35

5.3.2 Protocol impacts on Rx p. 35

5.3.2.1 General p. 35

5.3.2.1.1 PCRF discovery over Rx p. 35

5.3.2.2 Commands p. 36

5.3.2.2.1 AA-Answer (AAA) command p. 36

5.3.2.2.2 Re-Auth-Request (RAR) command p. 36

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

5.3.3.1 General p. 37

5.3.3.1.1 Allocation and Retention Priority (ARP) p. 37

5.3.3.1.2 PCRF discovery over Gx, Gxa and Gxc p. 37

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

5.3.3.2 Commands p. 38

5.3.3.2.1 CC-Request (CCR) Command p. 38

5.3.3.3 AVPs p. 39

5.3.3.3.1 QoS-Information AVP p. 39

5.3.3.3.2 Allocation-and-Retention-Priority AVP p. 39

5.3.3.3.3 Access-Node-MCC-MNC AVP (All access types) p. 39

5.3.3.3.5 RAT-Type AVP p. 40

5.3.3.3.6 CoA-IP-Address AVP p. 41

5.3.3.3.7 CoA-IPv6-Address AVP p. 41

5.3.3.3.8 Tunnel-Information AVP p. 41

5.3.3.3.9 Tunnel-Header-Length AVP p. 41

5.3.3.3.10 Tunnel-Header-Filter AVP p. 41

5.3.3.4 Gxa protocoldelta p. 42

5.3.3.4.1 Commands p. 42

5.3.3.4.2 AVPs p. 42

5.3.3.4.2.1 General p. 42

5.3.3.4.2.2 Definition of new AVPs p. 44

5.3.3.4.2.2.1 Access-Node-MCC-MNC AVP (All access types) p. 44

5.3.3.5 Gxb protocoldelta p. 44

5.3.3.6 Gxc protocoldelta p. 44

5.3.3.6.1 Commands p. 44

5.3.3.6.2 AVPs p. 44

5.3.3.6.2.1 General p. 44

5.3.3.6.2.2 Definition of new AVPs p. 46

5.3.3.6.2.2.1 Access-Node-MCC-MNC AVP (All access types) p. 46

5.3.3.7 Diameter Application p. 46

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

5.4.1 Authorized IP QoS parameters to Authorized access network QoS parameters mapping in PCEF or BBERF p. 47

5.4.2 QoS parameter mapping in the UE for trusted non-3GPP IP-CANs p. 47

5.4.2.1 Framework for QoS mapping in the UE p. 47

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

6 Interworking between EPC and external PDNs p. 49

6.1 Functional Entities p. 49

6.1.1 PDN GW p. 49

6.2 Procedures p. 49

6.3 Protocol impacts p. 49

6.3.1 Protocol impacts on SGi p. 49

7 QoS mechanisms p. 50

7.1 Functional Entities p. 50

7.1.1 PCRF p. 50

7.1.2 PCEF p. 50

7.2 Procedures p. 50

7.2.1 Transport network level packet marking p. 50

7.3 Protocol impacts p. 51

7.3.1 Protocol impacts on Gx p. 51

8 E-MBMS p. 51

8.1 Functional Entities p. 51

8.1.1 MBMS CP p. 51

8.1.2 MBMS UP p. 51

8.1.3 eBM-SC p. 51

8.1.4 PDN-GW p. 51

8.2 Protocols p. 51

8.2.1 Protocol for SGi-mb interface p. 51

8.2.2 Protocol for SGmb interface p. 51

8.2.3 Protocol for SGi interface p. 51

9 SAE impact on existing capabilities p. 52

9.1 GPRS MBMS p. 52

9.2 Lawful Interception p. 52

9.3 Trace p. 52

10 Conclusion p. 52

$ Change history p. 53