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TR 23.859SA2
Local IP Access (LIPA) Mobility and
Selected IP Traffic Offload (SIPTO)
at the Local Network

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V12.0.1 (Wzip)  2013/04  68 p.

Rapporteur:  Mr. Zhu, Fenqin

This Technical Report describes the solutions to implement the architectural aspects based on the requirements from TS 22.220, clauses 5.7 and 5.9, and TS 22.101, clause 4.3.5, for LIPA and SIPTO at the local network. This includes:
  • the support of mobility for LIPA between the H(e)NBs located in the local IP network;
  • functionality to support Selected IP Traffic Offload requirements at the local network, including mobility.
The report is intended to document the analysis of the architectural aspects to achieve these objectives in order to include the solutions in the relevant technical specifications.

full Table of Contents for  TR 23.859  Word version:   12.0.1

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1  ScopeWord-p. 7
2  References
3  Definitions and abbreviations
4  Requirements
5  SolutionsWord-p. 10
5.1  General
5.2  Support of LIPA mobility
5.2.1  Key issue #L1: Architecture for LIPA mobility
5.2.2  Key issue #L2: L-GW selection and addressingWord-p. 16
5.2.3  Key issue #L3: Discovery of the LIPA mobility areaWord-p. 21
5.2.4  Key issue #L4: LIPA deactivation
5.2.5  Key issue #L5: H(e)NB providing LIPA support indication to UE
5.2.6  Key issue #L6: Criteria for LIPA activation for the MME/SGSNUp
5.3  SIPTO above the RAN
5.4  SIPTO at the local network
6  Conclusions
A  Evaluation of mobility procedure impacts for architecture 1Word-p. 34
B  Architectural details for architecture option 2, standalone L-GW on Iuh/S1 pathWord-p. 59
C  Change historyWord-p. 68

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