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TR 23.829
Local IP Access
and Selected IP Traffic Offload
(LIPA-SIPTO)

3GPP‑Page   fToC↓   Partial Content →
V10.0.1 (Wzip)  2011/10  43 p.
Rapporteur:
Mr. Hédé, Patrice
Huawei Technologies France

full Table of Contents for  TR 23.829  Word version:  10.0.1

each clause number in 'red' refers to the equivalent title in the Partial Content
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1Scope  p. 6
2References  p. 6
3Definitions, symbols and abbreviations  p. 6
3.1Definitions  p. 6
3.2Abbreviations  p. 7
4Examples for Styles  p. 7
4.1Scenarios  p. 7
4.1.1LIPA scenarios  p. 7
4.1.2SIPTO scenarios  p. 7
4.2Key issues  p. 8
4.2.1Legal interception  p. 8
4.2.2QoS  p. 8
4.2.3Single/multiple PDN support  p. 8
4.2.4Deployed behind NAT  p. 8
4.2.5Operator control for SIPTO  p. 8
4.3Architectural requirements  p. 9
5Architecture solutions  p. 9
5.1Architectural principles  p. 9
5.2Solution 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
5.2.1Applicability  p. 10
5.2.2Architectural principles  p. 10
5.2.2.1General principles  p. 10
5.2.2.2Architectural functions  p. 11
5.2.2.2.1LIPA  p. 11
5.2.2.2.2SIPTO for H(e)NodeB  p. 12
5.2.2.3Activation/Deactivation mechanism for LIPA and SIPTO  p. 12
5.2.2.3.1LIPA  p. 12
5.2.2.3.2SIPTO  p. 12
5.2.3Architecture variants  p. 13
5.2.3.1Architecture variant 1 for LIPA  p. 13
5.2.3.1.1General  p. 13
5.2.3.1.2LIPA PDN connection establishment  p. 14
5.2.3.1.3Inter-HeNodeB mobility  p. 16
5.2.3.1.4S1 Release procedure  p. 16
5.2.3.1.5UE Triggered Service Request procedure  p. 16
5.2.3.1.6L-GW Triggered Service Request procedure  p. 17
5.2.3.1.7Standards impacts  p. 18
5.2.3.2Architecture variant 2 for LIPA  p. 18
5.2.3.2.1General  p. 18
5.2.3.2.2LIPA Architecture for HeNodeB  p. 19
5.2.3.2.3LIPA Architecture for HNB with S4-SGSN  p. 19
5.2.3.2.4L-GW functions  p. 20
5.2.3.3Architecture for LIPA for UMTS  p. 20
5.2.4Open architectural issues  p. 21
5.2.5Evaluation  p. 21
5.3Solution 2 - Local IP Access and Selected IP Traffic Offload at H(e)NodeB by NAT  p. 22
5.3.1Applicability  p. 22
5.3.2Architectural principles  p. 22
5.3.3Paging and Mobility Support  p. 23
5.3.4Architecture diagrams  p. 23
5.3.5Deployment requirement and limitations  p. 24
5.3.6Standard Impacts  p. 24
5.4Solution 3 - GGSN allocation to offload point  p. 25
5.4.1Applicability  p. 25
5.4.2Architectural principles  p. 25
5.4.3Location of breakout point  p. 26
5.4.2.1RNC Breakout  p. 26
5.4.2.2HNB-GW Breakout  p. 26
5.4.2.3HNB Breakout  p. 26
5.4.4Mobility aspects of LIPA and SIPTO  p. 26
5.5Solution 4 - Selected IP Traffic Offload at Iu-PS  p. 26
5.5.1Applicability  p. 26
5.5.2Architectural principles  p. 27
5.5.3Traffic Offload Function  p. 27
5.5.4Offload procedure  p. 28
5.5.5Impacts on specification  p. 29
5.6Solution 5 - Selected IP Traffic Offload solution based on local PDN GW selection  p. 29
5.6.1Applicability  p. 29
5.6.2Architectural principles  p. 29
5.6.3Architecture Diagrams  p. 30
5.6.4Standards impacts  p. 31
5.6.5Open architectural issues  p. 32
5.7Solution 6 - Local Gateway based Architecture  p. 32
5.7.1Applicability  p. 32
5.7.2Architectural principles  p. 32
5.7.3Open issues  p. 34
5.7.4Establishment of PDN connectivity subject to LIPA or SIPTO  p. 34
5.7.5Terminating traffic handling  p. 36
6Evaluation  p. 37
6.1Evaluation of GW Selection mechanism  p. 37
6.1.1General  p. 37
6.1.2Scenario 1: GW close to the UE's point of attachment  p. 38
6.1.3Scenario 2: GW co-located with HeNodeB or HNodeB  p. 39
6.2Evaluation of GW re-selection mechanism for SIPTO  p. 39
6.2.1General  p. 39
6.2.2GW re-selection criterion  p. 39
7Conclusions  p. 40
7.1Conclusion on SIPTO macro  p. 40
7.2Conclusion on LIPA  p. 40
7.2.1Conclusion on the LIPA architecture  p. 40
7.2.2Conclusion on the architecture for Rel-10  p. 40
7.3Conclusion on SIPTO in the Home (e)NodeB subsystem  p. 41
AEvaluation of methods for operator control of SIPTO traffic  p. 42
A.1General  p. 42
A.2SIPTO traffic control granularity  p. 42
A.3Enforcement of SIPTO Routing Policies  p. 42
$Change history  p. 43

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