5G Transport Slice Connectivity Interface
draft-rokui-5g-transport-slice-00
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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
Status of This Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute
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Drafts is at https://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference
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This Internet-Draft will expire on January 3, 2020.
Copyright Notice
Copyright (c) 2019 IETF Trust and the persons identified as the
document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
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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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