5G Transport Slice Connectivity Interface
draft-rokui-5g-transport-slice-00

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Last updated 2019-07-02
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Individual                                                      R. Rokui
Internet-Draft                                                     Nokia
Intended status: Informational                                  S. Homma
Expires: January 3, 2020                                             NTT
                                                                D. Lopez
                                                          Telefonica I+D
                                                               X. de Foy
                                                       InterDigital Inc.
                                                    L. Contreras-Murillo
                                                       J. Ordonez-Lucena
                                                          Telefonica I+D
                                                       P. Martinez-Julia
                                                                    NICT
                                                            M. Boucadair
                                                                  Orange
                                                              P. Eardley
                                                                      BT
                                                            K. Makhijani
                                                      Futurewei Networks
                                                               H. Flinck
                                                                   Nokia
                                                            July 2, 2019

               5G Transport Slice Connectivity Interface
                   draft-rokui-5g-transport-slice-00

Abstract

   The 5G Network slicing is an approach to provide separate independent
   E2E logical network from user equipment (UE) to applications where
   each network slice has different SLA requirements.  Each E2E network
   slice consists of multitude of RAN-slice, Core-slice and Transport-
   slices, each with its own controller.  To provide automation,
   assurance and optimization of the network slices, an E2E network
   slice controller is needed which interacts with controller in RAN,
   Core and Transport slices.  The interfaces between the E2E network
   slice controller and RAN and Core controllers are defined in various
   3GPP technical specifications.  However, 3GPP has not defined the
   same interface for transport slices.

   The aim of this document is to provide the clarification of this
   interface and to provide the information model of this interface for
   automation, monitoring and optimization of the transport slices.

Rokui, et al.            Expires January 3, 2020                [Page 1]
Internet-Draft       draft-rokui-5G-transport-slice            July 2019

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
     1.1.  Definition of Terms . . . . . . . . . . . . . . . . . . .   3
   2.  High level architecture of 5G end-to-end network slicing  . .   5
   3.  Logical flow cross layers for automation of an end-to-end
       network slices  . . . . . . . . . . . . . . . . . . . . . . .   8
   4.  Definition of Transport Slice . . . . . . . . . . . . . . . .  11
     4.1.  Transport Slices in Distributed RAN . . . . . . . . . . .  11
     4.2.  Transport Slices in Centralized RAN (C-RAN) . . . . . . .  12
     4.3.  Transport Slices in cloud RAN . . . . . . . . . . . . . .  13
     4.4.  Transport Slice as a set of networks  . . . . . . . . . .  14
   5.  Transport Slice Connectivity Interface (TSCi) . . . . . . . .  16
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