Content for TR 32.820 Word version: 8.0.1
2 References
3 Definitions, symbols and abbreviations
4 Baseline architecture
5 Charging in the evolved 3GPP system
6 Recommendations
A List of open issues
$ Change history
2 References p. 6
3 Definitions, symbols and abbreviations p. 7
4 Baseline architecture p. 9
4.1 Charging architecture in 3GPP Rel-7 p. 9
4.1.1 General charging architecture p. 9
4.1.2 PS domain charging architecture p. 10
4.1.3 Architecture for flow based charging p. 11
4.1.4 WLAN domain charging architecture p. 12
4.2 Architecture for the evolved 3GPP system p. 16
5 Charging in the evolved 3GPP system p. 21
5.1 Charging for 3GPP accesses p. 21
5.1.1 Non-roaming case p. 21
5.1.1.1 Use case definition and architecture p. 21
5.1.1.2 Key issues p. 21
5.1.1.3 Conclusions p. 21
5.1.1.4 Open issues p. 21
5.1.2 Home Routed Roaming cases p. 21
5.1.2.1 Use case definition and architecture p. 21
5.1.2.2 Key issues p. 22
5.1.2.2.1 Key issue #1 "Location of PCEF functionality" p. 22
5.1.2.2.2 Key issue #2 "Inter-operator charging" p. 22
5.1.2.3 Conclusions p. 22
5.1.2.3.1 Conclusions on Key issue #1 "Location of PCEF functionality" p. 22
5.1.2.3.2 Conclusions on Key issue #2 "Inter-operator charging" p. 22
5.1.2.4 Open issues p. 22
5.1.3 Local Breakout Roaming case p. 22
5.1.3.1 Use case definition and architecture p. 22
5.1.3.2 Key issues p. 23
5.1.3.3 Conclusions p. 23
5.1.3.4 Open issues p. 23
5.2 Charging for non-3GPP accesses p. 24
5.2.1 Non-roaming case p. 24
5.2.1.1 Use case definition and architecture p. 24
5.2.1.2 Key issues p. 24
5.2.1.3 Conclusions p. 24
5.2.1.4 Open issues p. 24
5.2.2 Roaming cases p. 25
5.2.2.1 Use case definition and architecture p. 25
5.2.2.2 Key issues p. 25
5.2.2.2.1 Key issue #1 "Location of PCEF functionality" p. 25
5.2.2.2.2 Key issue #2 "Inter-operator charging" p. 25
5.2.2.3 Conclusions p. 26
5.2.2.3.1 Conclusions on Key issue #1 "Location of PCEF functionality" p. 26
5.2.2.3.2 Conclusions on Key issue #2 "Inter-operator charging" p. 26
5.2.2.4 Open issues p. 26
5.3 Mobility cases p. 27
6 Recommendations p. 28
6.1 Recommendations for work item and specification structure p. 28
6.2 Recommendations for charging requirements and principles p. 28
6.3 Recommendations for charging architecture p. 28
6.4 Recommendations for charging data and protocols p. 28
A List of open issues p. 29
$ Change history p. 30
