Considerations for MPTCP operation in 5G
draft-defoy-mptcp-considerations-for-5g-01

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Network Working Group                                          X. de Foy
Internet-Draft                                                 M. Perras
Intended status: Informational               InterDigital Communications
Expires: December 24, 2018                                   U. Chunduri
                                                              Huawei USA
                                                               K. Nguyen
                                                               M. Kibria
                                                               K. Ishizu
                                                               F. Kojima
                                                                    NICT
                                                           June 22, 2018

                Considerations for MPTCP operation in 5G
               draft-defoy-mptcp-considerations-for-5g-01

Abstract

   This document describes scenarios where the behavior of the 5G
   mobility management framework is different from earlier cellular
   generations, and describes how it may benefit from some form of
   adaptation of MPTCP implementations and protocol aspects in the 5G
   system.  This document also describes how MPTCP may be leveraged in
   5G system specifications.

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Copyright Notice

   Copyright (c) 2018 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

de Foy, et al.          Expires December 24, 2018               [Page 1]
Internet-Draft                 MPTCP IN 5G                     June 2018

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Need for Adapting MPTCP to 5G Session and Service
           Continuity  . . . . . . . . . . . . . . . . . . . . . . .   3
     1.2.  Opportunity for Leveraging MPTCP in 5G Dual Connectivity
           Feature . . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Impact of 5G Session and Service Continuity on MPTCP  . . . .   3
     2.1.  New Inputs for MPTCP stacks . . . . . . . . . . . . . . .   4
     2.2.  SSC mode 1  . . . . . . . . . . . . . . . . . . . . . . .   5
     2.3.  SSC mode 2  . . . . . . . . . . . . . . . . . . . . . . .   6
     2.4.  SSC mode 3  . . . . . . . . . . . . . . . . . . . . . . .   7
     2.5.  Behavior of Remote Peer . . . . . . . . . . . . . . . . .   9
   3.  MPTCP with 5G Dual Connectivity . . . . . . . . . . . . . . .  10
   4.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  11
   5.  Security Considerations . . . . . . . . . . . . . . . . . . .  11
   6.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  11
   7.  Informative References  . . . . . . . . . . . . . . . . . . .  11
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  12

1.  Introduction

   MPTCP [RFC6824] is being deployed and widely adopted in today's smart
   devices, which typically have multiple network interfaces such as
   Cellular and Wifi.  It provides reliability, bandwidth aggregation
   capability, and handover efficiency.

   This document describes scenarios where the behavior of the 5G
   mobility management framework is different from earlier cellular
   generations, and describes how it may benefit from some form of
   adaptation of MPTCP implementations and protocol aspects in the 5G
   system (see Section 1.1).  This document also describes how MPTCP may
   be leveraged in 5G system specifications (see Section 1.2).

de Foy, et al.          Expires December 24, 2018               [Page 2]
Internet-Draft                 MPTCP IN 5G                     June 2018

1.1.  Need for Adapting MPTCP to 5G Session and Service Continuity
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