• ITU-T Focus GroupIMT-2020 Deliverables2017
• Foreword
• Table of contents
• 1. Terms and definitions for IMT-2020 in ITU-T
• 1 Usage of Terms defined elsewhere
• 2 New draft Terms defined by FG IMT-2020 works
• 2.1 Terms and definitions reached consensus
• 2.2 Terms and definitions need further harmonization
• 2. High level network architecture for 5G
• 1 Scope
• 2 References
• 3 Definitions
• 3.1 Terms defined elsewhere
• 3.2 Terms defined in this Recommendation
• 4 Abbreviations and acronyms
• 5 Conventions
• 6 Overview of IMT-2020 from network perspective
• 7 Design goals
• 7.1 Service diversity
• 7.1.1 Diversity of QoS requirements
• 7.1.2 Diversity of UE mobility and service continuity
• 7.1.3 Diversity of user data type
• 7.2 Functional flexibility and programmability
• 7.3 Converged access-agnostic and unified core network
• 7.4 Separation of control plane and user plane functions
• 7.5 Distributed network architecture
• 7.6 In-network data processing
• 7.7 Unified intelligent network management
• 7.8 Optimization
• 7.9 Reliability and security
• 7.10 Energy efficiency
• 8 Requirements from service points of view
• 8.1 Enhanced mobile broadband services
• 8.1.1 Description
• 8.1.2 Requirements
• 8.2 Enhanced massive machine type communication services
• 8.2.1 Description
• 8.2.2 Requirements
• 8.3 Ultra-reliable and low latency communication services
• 8.3.1 Description
• 8.3.2 Requirements
• 9 Requirements from network operation points of view
• 9.1 Network flexibility and programmability
• 9.1.1 Description
• 9.1.2 Requirements
• 9.2 Fixed-mobile converged networks
• 9.2.1 Description
• 9.2.2 Requirements
• 9.3 Enhanced mobility management
• 9.3.1 Description
• 9.3.2 Requirements
• 9.4 Scalable and incremental installations
• 9.4.1 Description
• 9.4.2 Requirements
• 9.5 Network capability exposure
• 9.5.1 Description
• 9.5.2 Requirements
• 9.6 Authentication and Security
• 9.6.1 Description
• 9.6.2 Requirements
• 9.7 Flexible Signalling
• 9.7.1 Description
• 9.7.2 Requirements
• 9.8 Numbering, Naming and Addressing
• 9.9 QoS control
• 9.9.1 Description
• 9.9.2 Requirements
• 9.10 Context awareness
• 9.11 Profile management (User, Device, etc.)
• 9.12 Network management
• 9.12.1 Description
• 9.12.2 Requirements
• 9.13 Accounting and Charging
• 9.13.1 Description
• 9.13.2 Requirements
• 9.14 Interworking
• 9.14.1 Description
• 9.14.2 Requirements
• Appendix I Use cases of IMT-2020
• I-1 Network slicing with shared Core Network instance
• Appendix II Contributors (in Alphabetical Order)
• Appendix III Acknowledgement
• Bibliography
• Framework of IMT-2020 network architecture
• 1 Scope
• 2 References
• 3 Terms and definitions
• 3.1 Terms defined elsewhere
• 3.2 Terms defined in this Recommendation
• 4 Abbreviations and acronyms
• 5 Overview of IMT-2020 network architecture framework
• 5.1 General framework and architectural principles
• 5.1.1 IMT-2020 network slice life-cycle management level architecture
• 5.1.2 Network slice instance level architecture
• 6 Functional architecture of IMT-2020 network
• 6.1 Design principles
• 6.2 End-to-end functional architecture of IMT-2020
• 6.2.1 Overview of end-to-end IMT-2020 functional architecture
• 6.2.2 Functional architecture of IMT-2020 core network
• 6.2.3 Network function descriptions
• 6.2.3.1 Control plane network functions
• 6.2.3.2 Data plane network functions
• 6.3 Functional entities
• 6.4 Reference points
• Appendix I Living list on Common IMT-2020 Network Architecture Diagram
• I.1 Living list document #1 - Common architecture framework proposed in [b-ITU-T IMT-I-225]
• I.1.1 General framework and architectural principles
• I.1.1.1 IMT-2020 network stratum
• I.2 Living list document #2 - Common architecture framework proposed in [b-ITU-T IMT-I-247]
• I.2.1 General framework and architectural principles
• I.3 Living list document #3 - Common architecture framework proposed in [b-ITU-T IMT-I-250]
• I.3.1 IMT 2020 Global Pictures - Logical and Physical Architectures - Revisited
• I.3.2 Taxonomy of IMT 2020 Network Functionality
• I.4 Living list document #4 - Common architecture framework proposed in [b-ITU-T IMT-I-255]
• I.4.1 General framework and architectural principles
• Appendix II Contributors (in Alphabetical Order)
• Appendix III Acknowledgement
• Bibliography
• Blank Page
• 3. Network softwarization
• 1 Scope

o    2 References

o    3 Definitions

§  3.1 Terms defined elsewhere

§  3.2 Terms defined in this document

o    4 Abbreviations and acronyms

o    5 Conventions

o    6 Network Softwarization for IMT-2020

§  6.1 Standardization activities for network softwarization

§  6.1.1 Standardization activities at 3GPP SA2

§  6.1.1.1 Terminologies

§  6.1.1.2 Key issues and solutions

§  6.1.1.2.1 Key issue: Support of network slicing

§  6.1.1.2.1.1 Solution 1.1: Slice selection solution update

§  6.1.1.2.1.2 Solution 1.2: UE slice association/overload control procedure

§  6.1.1.2.2 Key issue: Network function granularity and interactions between them

§  6.1.1.2.2.1 Solution 2.1: IRF based network function interconnection model solution update

§  6.1.1.2.2.2 Solution 2.2: NFs discovery solution

§  6.1.1.2.2.3 Solution 2.3: NF communication solution

§  6.1.1.2.3 Key issue: 3GPP architecture impacts to support network capability exposure

§  6.1.1.2.4 Key issue: Architecture impacts when using virtual environments

§  6.1.1.3 Architecture(s) for the Next Generation System

§  6.1.1.3.1 Consolidated architecture option 1

§  6.1.1.3.2 Consolidated architecture option 2

§  6.1.1.3.3 Consolidated architecture option 3

§  6.1.1.3.4 Consolidated architecture option 4

§  6.1.1.4 Gap Analysis (should be updated after further investigation)

§  6.1.1.5 Future Plan for Phase 1 Normative Work

§  6.1.2 Standardization activities at ETSI ISG NFV

§  6.1.3 Standardization activities at ETSI ISG MEC

§  6.1.4 Standardization activities at ETSI NTECH AFI WG

§  6.1.4.1 Autonomic Management & Control (AMC) Reference Model

§  6.1.4.2 Instantiation of the Autonomic Management & Control reference model

§  6.1.4.3 ETSI NTECH Call for Autonomics Proof of concept

§  6.1.4.4 Standardization efforts in Joint SDO/Fora Industry Harmonization Initiative for Unified Standards for AMC, SDN, NFV, E2E Service Orchestration and Big-Data Analytics for AMC

§  6.1.5 Standardization activities at IETF on Detnet

§  6.1.5.1 Introduction

§  6.1.5.2 The Work Scope of Detnet WG

§  6.1.5.3 Standardization activities states of Detnet WG

§  6.1.6 Standardization activities at IETF on SFC

§  6.1.7 Standardization activities of Flexible Ethernet at OIF

§  6.1.7.1 Introduction of Flexible Ethernet

§  6.1.7.2 Terms and Definitions

§  6.1.7.3 Abbreviations and Acronyms

§  6.1.7.4 Overview of FlexE Data Plane

§  6.1.7.4.1 FlexE Group

§  6.1.7.4.2 FlexE Client

§  6.1.7.4.3 FlexE Shim

§  6.1.7.4.4 FlexE Calendar

§  6.1.7.4.5 FlexE Overhead

§  6.1.7.4.6 Capabilities of FlexE

§  6.1.7.5 OAM

§  6.1.7.6 Resizing of FlexE Connection

§  6.1.7.7 Overview - FlexE Application and Networking Slicing

§  6.2 Open source projects for network softwarization

§  6.2.1 O3 Project

§  6.2.2 OpenAirInterface

§  6.2.3 OPNFV

§  6.2.4 ONOS

§  6.2.4.1 Overview

§  6.2.4.2 ONOS System Tiers

§  6.2.4.3 ONOS Sub Systems

§  6.2.4.4 ONOS Architecture

§  6.2.5 OPEN-O

§  6.3 Prototyping activities for network softwarization

§  6.3.1 A generalized Operating Platform for Network softwarization

§  6.3.1.1 Towards a unified model for services

§  6.3.1.2 Overall architecture of generalized Operating Platform

§  6.3.1.3 Demo of a prototype of the generalized Operating Platform

§  6.3.2 CTTC 5G End-to-End experimental Platform

§  6.3.3 Testbed prototyping for network softwarization by NICT

§  6.3.4 A network slicing prototype for 5G

§  6.3.4.1 5G Network Slicing Architecture Model

§  6.3.4.2 5G Network Slice Informational Entities

§  6.3.4.3 5G Network slicing: Services, Resources and Functions

§  6.4 Work in-progress research projects

§  6.4.1 5G!Pagoda Project by Aalto University

§  6.4.2 5GPPP H2020 Crosshaul project

§  6.4.2.1 Introduction

§  6.4.2.2 Development Focus and Research Challenges of 5G-Crosshaul Project

§  6.4.2.3 5G-Crosshaul transport network architecture

§  6.4.2.4 5G-Crosshaul components and PoC

§  6.4.3 H2020 5GPPP 5G-XHaul project

§  6.4.3.1 Introduction

§  6.4.3.2 Development Focus and Research Challenges of 5G-XHaul

§  6.4.3.3 5G-XHaul PoC

§  6.4.4 H2020 5G SONATA project

§  6.4.4.1 Introduction

§  6.4.4.2 Development Focus and Research Challenges of 5G SONATA Project

§  6.4.4.3 5G SONATA architecture

§  6.4.4.4 5G SONATA components and PoC

§  6.4.5 5GPPP H2020 5GEx project

§  6.4.5.1 Introduction

§  6.4.5.2 Development Focus and Research Challenges of 5GEx Project

§  6.4.5.3 5GEx architecture

§  6.4.5.4 5GEx components and PoC

§  6.4.6 Inter-operator cooperation for the deployment of microcells in private areas

§  6.4.6.1 Introduction

§  6.4.6.2 Representative deployment scenario

§  6.4.6.3 Current considerations

§  6.4.7 5G3ALT project by ATR

§  6.4.7.1 Introduction

§  6.4.7.2 Background and motivation

§  6.4.7.3 Objectives and challenges

§  6.4.7.4 Related key issues in 3GPP standardization

o    7 Vertical extension of slicing

§  7.1 Network slicing for FH/BH

§  7.1.1 Slice and a conceptual implementation model

§  7.1.2 The information messages exchanged at the reference point

§  7.1.2.1 Message categories at the reference point

§  7.1.2.2 Expected additional functionalities and related document at the reference point.

§  7.1.3 The basic procedure used for the exchange of information at the reference point

§  7.1.4 The list of the parameters included in information messages

o    Appendix Summary of the functional requirement for the transport SDN by ONF and categories considered by the FG IMT-2020 Network Softwarization Working Group

§  7.2 The review of the gaps described in Phase 1 Report and usecases

§  7.2.1 Review of the gaps described in Phase 1 Report and required functionalities on the Virtual Resource interface.

§  7.2.1.1 Large capacity transmission (D.7.1-1)

§  7.2.1.2 Power saving by sleep or rate control (D.7.4)

§  7.2.1.3 PON as a virtual digital wireline service (D.7.5-1)

§  7.2.1.4 Reliability and resiliency (D.7.6)

§  7.2.1.5 Diversified types of terminals (D.7.7-1)

§  7.2.1.6 Diversified types of traffic (D.7.7-2)

§  7.2.1.7 Diversified types of network operator (D.7.7-2)

§  7.2.1.8 Diversified types of RAN (D.7.7-4)

§  7.2.1.9 Radio over packet (D.8.5)

§  7.2.1.10 Coordination of power saving across MFH/MBH/Radio System (D.9.2.1)

§  7.2.1.11 Power saving by resource optimization (D.9.2.2)

§  7.2.2 The review the relation between the Use Cases and functionalities controlled by the information(s)

§  7.3 Data Plane Programmability

§  7.3.1 Background [Ref.7.3-1]

§  7.3.2 Challenges in Data Plane Programmability [Ref.7.3-2]

§  7.3.3 Introduction to FLARE [Ref.7.3-1, 7.3-2 and 7.3-5]

§  7.3.4 Use cases of FLARE architecture

§  7.3.5 Functional Enhancement in Data Plane Using SDN Software Switches

§  7.3.6 Introduction to Lagopus [Ref.7.3-7 and 7.3-8]

§  7.3.7 Protocol Oblivious Forwarding (POF)

§  7.3.7.1 Background

§  7.3.7.2 Introduction of POF

§  7.3.7.3 Data Plane Programmability of POF

o    8 Horizontal extension of slicing

§  8.1 Capability exposure and APIs

§  8.2 End-to-end slice

§  8.2.1 Overview

§  8.2.2 Orchestration actions

§  8.2.3 Action timelines

§  8.2.4 New "user" defined actions/triggers

§  8.2.5 Cookies

§  8.2.6 Control plane enhancement for 5G transport network

§  8.2.6.1 Control plane for low latency, jitter and packet loss

§  8.2.6.2 Control plane for guaranteed bandwidth

§  8.2.6.3 Control plane for very large scale network

§  8.2.6.4 Control plane for flexible connectivity and topology

§  8.2.6.5 Control plane for flexible resources assignment and sharing

§  8.2.7 Control plane considerations for transport network slicing

§  8.2.7.1 Hybrid control plane for transport network slicing

§  8.2.7.2 Layered architecture for transport network slicing

o    9 Application scenario of network softwarization

§  9.1 Scenario 1: Edge computing

§  9.2 Scenario 2: ICN on a Slice

§  9.2.1 ICN value to 5G network

§  9.2.2 Network softwarization benefits to ICN

§  9.2.3 IoT on ICN use case

§  9.3 Scenario 3: LTE in a slice

§  9.4 Scenario 4: Network Slicing

§  9.5 Scenario 5: Satellite integration in the 5G Ecosystem

o    Appendix I LTE in Slice for Softwarization

§  I.1 Overview

§  I.2 Discussion

§  I.3 Components

§  I.4 SIM card programming

§  I.5 Lab pictures

o    Appendix II FlexE

§  II.1 IP/Ethernet based Mobile Backhaul

§  II.2 OAM Functions for FlexE

§  II.2.1 FlexE Neighbor Discovery

§  II.2.2 FlexE End-to-End Connection Connectivity Verification

§  II.3 FlexE-3 Resizing of FlexE Connection

§  II.3.1 Hitless Resizing Operation

o    Contributors (in Alphabetical Order)

o    1 Scope

o    2 References

o    3 Definitions

o    4 Abbreviations and acronyms

o    5 Conventions

o    6 IMT-2020 deployment scenarios

o    7 eNMS requirements for IMT-2020

§  7.1 High Level Network Management Requirements for IMT-2020 based on ITU-T

§  7.2 Functional Network Management Requirement for IMT-2020

§  7.3 Application and Service Management Requirements for IMT-2020

§  7.3.1 Connected car service management requirement for IMT-2020

§  7.3.2 Personal broadcasting service management requirement for IMT-2020

§  7.3.3 IoT service management requirement for IMT-2020

o    Appendix I IMT-2020 Networks, Services and Resources Orchestration Functional Requirements

o    I Functionality Applicable to all Networks, Services and Resources Orchestration

§  I.1 System Primitives

§  I.2 Service Information Enablers

o    II Service Development Functionality

§  II.1 SDK Primitives

§  II.2 SDK Tools

o    III Service Platform Functionality

§  III.1 Service Platform Primitives

§  III.2 Service Platform Tools

o    IV Service Orchestration Functionality

§  IV.1 Service Orchestration Primitives

§  IV.2 Resource Orchestration Primitives

o    Contributors (in Alphabetical Order)

o    Acknowledgement

o    1 Scope

o    2 References

o    3 Definitions

§  3.1 Terms defined elsewhere

§  3.2 Terms defined in this Recommendation

o    4 Abbreviations and acronyms

o    5 Conventions

o    6 Overview of IMT-2020 end-to-end network management

§  6.1 Motivation

§  6.2 Underlying Technologies

§  6.2.1 Software-defined networking (SDN)

§  6.2.2 Network functions virtualization (NFV)

§  6.2.3 Cloud computing

§  6.3 Clarification of Management and Orchestration for IMT-2020

o    7 IMT-2020 Network Management General Architecture

o    8 IMT-2020 Slice Life Cycle Management Functional Architecture

§  8.1 Physical Data Plane & Resource Management Functional Component

§  8.2 Virtual Data Plane & Resource Management Functional Component

§  8.3 Control Plane Management Functional Component

§  8.4 Application and Service Management Functional Component

§  8.5 Multi-Plane Management Orchestration and Slice Lifecycle Management Support Functional Component

§  8.6 External Relationship Management Functional Component

o    9 IMT-2020 Management Procedure and Implementation Scenarios

§  9.1 IMT-2020 Management Procedure

§  9.2 IMT-2020 Management Implementation Scenarios

§  9.2.1 eNMS Architecture for IMT-2020 network management

§  9.3 Virtual Network Management

§  9.3.1 Implementation scenario of multi operators

§  9.3.1.1 Multi Service Control and Management

§  9.3.1.2 Multi-Domain Management and Orchestration Architecture

§  9.4 Integrated Network Management

o    Appendix I Contributors (in Alphabetical Order)

o    Appendix II Acknowledgement

·         4. Information centric networking (ICN)

o    1 Scope

o    2 Abbreviations and acronyms

o    3 Introduction

§  3.1 ICN Background

§  3.1.1 Elements of ICN

§  3.2 Overview of the five Proof Of Concept (PoC) performed for the ITU-T Focus Group on IMT-2020

o    4 ICN Enhanced Mobile Video at the Network Edge (Cisco)

§  4.1 Application to IMT-2020

o    5 Functional Chaining System in ICN (Fujitsu Labs of America)

§  5.1 Abstract

§  5.2 Application to IMT-2020

§  5.3 Implications for Standardization

o    6 End-to-end ICN Service Orchestration with Mobility for IMT 2020 (Huawei)

§  6.1 Abstract

§  6.2 Towards ICN Standardization

§  6.2.1 Gap E.1 ICN as a protocol for IMT-2020 Network:

§  6.2.2 Gap E.8: ICN Mobility and Routing

§  6.2.3 Gap E. 12: Operations and management (SDN/NFV)

o    7 IP Services over ICN (InterDigital)

§  7.1 InterDigital ICN solution within the IMT-2020 network

§  7.1.1 ICN over SDN

§  7.2 InterDigital Solution: IP over ICN

§  7.3 Benefits of InterDigital ICN solution

§  7.4 Integration with IMT-2020 NWs

§  7.5 Further study and possible standardization

o    8 ICN transport for mmWave Networks (KDDI)

§  8.1 Background

§  8.2 Technical Details

o    9 Bibliography

o    10 Annex A: Proof-of-Concept Technical Background

§  10.1 End-to-end ICN Service Orchestration with Mobility for IMT 2020

§  10.1.1 System Architecture

§  10.1.2 Mobility Solution

§  10.1.3 A/V Application Design

§  10.1.4 POC Workflow and Initial Results

§  10.2 IP Services over ICN

§  10.2.1 Network architecture

§  10.2.2 Showcase Proof-of-Concept

§  10.2.3 Further details: HTTP Mapping Operations

§  10.2.3.1 Naming Conventions

§  10.2.3.2 Registering HTTP Services

§  10.2.3.3 Handling HTTP Requests

§  10.2.3.4 Handling HTTP Responses

§  10.2.4 Addressing Delay Challenges

§  10.2.5 Enabling HTTP Multicast Responses

§  10.2.6 Flow Control

§  10.3 ICN transport for mmWave Networks (KDDI)

§  Blank Page

·         5. Fixed and Mobile Convergence

o    1 Scope

o    2 References

o    3 Definitions

§  3.1 Terms defined elsewhere

§  3.2 Terms defined in this document

o    4 Abbreviations and acronyms

o    5 Conventions

o    6 Overview of IMT-2020 FMC

§  6.1 General objectives of IMT-2020 FMC

o    7 IMT-2020 FMC service requirements

§  7.1 Access service support

o    8 IMT-2020 FMC capability requirements

§  8.1 Customer-oriented ubiquitous broadband access and service environment

§  8.1.1 Description

§  8.1.2 Requirements

§  8.2 Unified User Plane

§  8.2.1 Description

§  8.2.2 Requirements

§  8.3 Access independence

§  8.3.1 Descriptions

§  8.3.2 Requirements

§  8.4 Quality of service

§  8.4.1 Descriptions

§  8.4.2 Requirements

§  8.5 Mobility management

§  8.6 Connection management

§  8.6.1 Descriptions

§  8.6.2 Requirements

§  8.7 Interworking

§  8.7.1 Descriptions

§  8.7.2 Requirements

§  8.8 Accounting and charging

§  8.8.1 Descriptions

§  8.8.2 Requirements

§  8.9 Security

§  8.9.1 Descriptions

§  8.9.2 Requirements

o    Contributors (in Alphabetical Order)

o    1 Scope

o    2 References

o    3 Abbreviations and acronyms

o    4 Overview

o    5 Architecture

§  5.1 Functional Architecture Model

§  5.2 Deployment Model

§  5.3 Functional Components

§  5.3.1 UNIC-CP

§  5.3.2 UNIC-UP

§  5.3.3 Converged User Data

§  5.3.4 Service Chain

§  5.3.5 Telecom Integrated Cloud

§  5.4 Reference points

§  5.4.1 Uc

§  5.4.2 Ud

o    6 Key technologies

§  6.1 Control and User Plane Separation

§  6.2 Reconstruction of control plane

§  6.3 Service Chain

§  6.4 User Data Convergence

§  6.5 Network Function Virtualization and Software Define Network

o    Appendix A Architecture of the existing networks

§  A.1 Fixed broadband

§  A.2 WLAN

§  A.3 2G/3G

§  A.4 4G

§  A.5 5G

o    Contributors (in Alphabetical Order)