Content for TR 23.829 Word version: 10.0.1
4 Examples for Styles
5 Architecture solutions
6 Evaluation
7 Conclusions
A Evaluation of methods for operator control of SIPTO traffic
$ Change history
4 Examples for Styles p. 7
4.1 Scenarios p. 7
4.1.1 LIPA scenarios p. 7
4.1.2 SIPTO scenarios p. 7
4.2 Key issues p. 8
4.2.1 Legal interception p. 8
4.2.2 QoS p. 8
4.2.3 Single/multiple PDN support p. 8
4.2.4 Deployed behind NAT p. 8
4.2.5 Operator control for SIPTO p. 8
4.3 Architectural requirements p. 9
5 Architecture solutions p. 9
5.1 Architectural principles p. 9
5.2 Solution 1 - Local IP Access and Selected IP Traffic Offload solution based on traffic breakout performed within H(e)NodeB using a local PDN connection p. 10
5.2.1 Applicability p. 10
5.2.2 Architectural principles p. 10
5.2.2.1 General principles p. 10
5.2.2.2 Architectural functions p. 11
5.2.2.2.1 LIPA p. 11
5.2.2.2.2 SIPTO for H(e)NodeB p. 12
5.2.2.3 Activation/Deactivation mechanism for LIPA and SIPTO p. 12
5.2.2.3.1 LIPA p. 12
5.2.2.3.2 SIPTO p. 12
5.2.3 Architecture variants p. 13
5.2.3.1 Architecture variant 1 for LIPA p. 13
5.2.3.1.1 General p. 13
5.2.3.1.2 LIPA PDN connection establishment p. 14
5.2.3.1.3 Inter-HeNodeB mobility p. 16
5.2.3.1.4 S1 Release procedure p. 16
5.2.3.1.5 UE Triggered Service Request procedure p. 16
5.2.3.1.6 L-GW Triggered Service Request procedure p. 17
5.2.3.1.7 Standards impacts p. 18
5.2.3.2 Architecture variant 2 for LIPA p. 18
5.2.3.2.1 General p. 18
5.2.3.2.2 LIPA Architecture for HeNodeB p. 19
5.2.3.2.3 LIPA Architecture for HNB with S4-SGSN p. 19
5.2.3.2.4 L-GW functions p. 20
5.2.3.3 Architecture for LIPA for UMTS p. 20
5.2.4 Open architectural issues p. 21
5.2.5 Evaluation p. 21
5.3 Solution 2 - Local IP Access and Selected IP Traffic Offload at H(e)NodeB by NAT p. 22
5.3.1 Applicability p. 22
5.3.2 Architectural principles p. 22
5.3.3 Paging and Mobility Support p. 23
5.3.4 Architecture diagrams p. 23
5.3.5 Deployment requirement and limitations p. 24
5.3.6 Standard Impacts p. 24
5.4 Solution 3 - GGSN allocation to offload point p. 25
5.4.1 Applicability p. 25
5.4.2 Architectural principles p. 25
5.4.3 Location of breakout point p. 26
5.4.4 Mobility aspects of LIPA and SIPTO p. 26
5.5 Solution 4 - Selected IP Traffic Offload at Iu-PS p. 26
5.5.1 Applicability p. 26
5.5.2 Architectural principles p. 27
5.5.3 Traffic Offload Function p. 27
5.5.4 Offload procedure p. 28
5.5.5 Impacts on specification p. 29
5.6 Solution 5 - Selected IP Traffic Offload solution based on local PDN GW selection p. 29
5.6.1 Applicability p. 29
5.6.2 Architectural principles p. 29
5.6.3 Architecture Diagrams p. 30
5.6.4 Standards impacts p. 31
5.6.5 Open architectural issues p. 32
5.7 Solution 6 - Local Gateway based Architecture p. 32
6 Evaluation p. 37
6.1 Evaluation of GW Selection mechanism p. 37
6.1.1 General p. 37
6.1.2 Scenario 1: GW close to the UE's point of attachment p. 38
6.1.3 Scenario 2: GW co-located with HeNodeB or HNodeB p. 39
6.2 Evaluation of GW re-selection mechanism for SIPTO p. 39
6.2.1 General p. 39
6.2.2 GW re-selection criterion p. 39
7 Conclusions p. 40
7.1 Conclusion on SIPTO macro p. 40
7.2 Conclusion on LIPA p. 40
7.2.1 Conclusion on the LIPA architecture p. 40
7.2.2 Conclusion on the architecture for Rel-10 p. 40
7.3 Conclusion on SIPTO in the Home (e)NodeB subsystem p. 41
A Evaluation of methods for operator control of SIPTO traffic p. 42
A.1 General p. 42
A.2 SIPTO traffic control granularity p. 42
A.3 Enforcement of SIPTO Routing Policies p. 42
$ Change history p. 43
