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  • ETSI GR MEC 018 V1.1.1 (2017-10)

    Mobile Edge Computing (MEC); End to End Mobility Aspects

    Disclaimer

    The present document has been produced and approved by the Mobile Edge Computing (MEC) ETSI Industry Specification Group (ISG) and represents the views of those members who participated in this ISG.

    It does not necessarily represent the views of the entire ETSI membership.

    GROUP REPORT

  • ETSI

    ETSI GR MEC 018 V1.1.1 (2017-10) 2

    Reference DGR/MEC-0018E2EMobility

    Keywords MEC, mobility

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  • ETSI

    ETSI GR MEC 018 V1.1.1 (2017-10) 3

    Contents

    Intellectual Property Rights ................................................................................................................................ 5

    Foreword ............................................................................................................................................................. 5

    Modal verbs terminology .................................................................................................................................... 5

    1 Scope ........................................................................................................................................................ 6

    2 References ................................................................................................................................................ 6 2.1 Normative references ......................................................................................................................................... 6 2.2 Informative references ........................................................................................................................................ 6

    3 Definitions and abbreviations ................................................................................................................... 6 3.1 Definitions .......................................................................................................................................................... 6 3.2 Abbreviations ..................................................................................................................................................... 7

    4 Mobility requirements and use cases ........................................................................................................ 7 4.1 Requirements and scenarios for mobility in ME system .................................................................................... 7 4.1.1 Requirements for mobility in ME system ..................................................................................................... 7 4.1.2 Mobility scenarios in ME system ................................................................................................................. 8 4.2 Use case for optimization of application state relocation ................................................................................... 9 4.3 Use case for prediction of relocation timing..................................................................................................... 10 4.4 Use case for mission critical low latency application relocation ...................................................................... 11 4.5 Use case for service continuity with the UE moves in/out of ME host serving area ........................................ 12 4.6 Use case for initial or/and simple deployment ................................................................................................. 13 4.7 GW based use case ........................................................................................................................................... 13

    5 End to end information flows to support mobility ................................................................................. 14 5.1 An overview ..................................................................................................................................................... 14 5.2 A flow for intra-ME host mobility ................................................................................................................... 16 5.3 A flow for inter-ME host mobility ................................................................................................................... 16 5.4 A flow for terminating an application instance ................................................................................................ 17 5.4.1 Terminate a dedicated service produced by application instance ............................................................... 17 5.4.2 Terminate a shared service produced by application instance .................................................................... 18 5.4.3 Gaps identified by information flow ........................................................................................................... 20 5.4.3.1 App instance life cycle change/creation/deletion notification ............................................................... 20 5.4.3.2 Shared application instance creation and deletion ................................................................................. 20 5.5 Evaluation of application instance relocation ................................................................................................... 21 5.5.1 General ........................................................................................................................................................ 21 5.5.2 Relocation notations ................................................................................................................................... 21 5.5.3 High-level information flows for relocation procedure .............................................................................. 22 5.5.4 Overview for a specific relocation method ................................................................................................. 22 5.5.5 Evaluation for a specific relocation method................................................................................................ 23 5.5.6 Gaps identified by information flow ........................................................................................................... 23

    6 Key issues and potential solutions .......................................................................................................... 24 6.1 Introduction ...................................................................................................................................................... 24 6.1.1 Roles and functions in service provisioning ............................................................................................... 24 6.1.2 Problems and Assumptions ......................................................................................................................... 25 6.1.3 Characterization of Service Continuity ....................................................................................................... 26 6.2 Key Issues ........................................................................................................................................................ 27 6.2.1 Key Issue: The optimization of application state relocation ....................................................................... 27 6.2.1.1 Description ..............

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