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A Reality Check:

What “Phase 1” 5G Will Look Like –

and What Will Be Next

Dr. R. Trivisonno

Future Network Technologies dept.

5G Summit, Berlin, Wed November 2, 2016

Presentation Outline

• 5G Drivers and Expectations

• 5G Phases – What will be in “Phase One”

• What’s Next

5G Drivers and Expectations

Game / Sports

Industry Robot

/ Drone

Massive MTC

Vehicle /

autonomous

driving

Picture from 3GPP SA1 SMARTER TR 22.891 v1.0.0

Presentation Outline

• 5G Drivers and Expectations

• 5G Phases – What will be in “Phase One”

• What’s Next

5G 3GPP “Phases”

SA/RAN Aspects for 5G Phase 1 to be closed shortly

(end 2016/beginning 2017)

This will define what the first 5G release will

include

SA/RAN 5G Phase 1 stage 3 freeze expected mid 2018

Green light for Phase 1 implementation

SA/RAN 5G Phase 2 to start in 2017

Final Decisions to be taken at SA2#118,

Reno, U.S. November 14-18 2016

NextGen

UE

NextGen

(R)AN

NextGen Core Data

network

NG2

NG3

NG6

5G Phase 1 – Network Slicing Support

RAN

CP NFs for Slice B

U P NFs for Slice B

CP NFs for Slice A

U P NFs for Slice A

Slice

Selection

Function

(SSF)

Subscriber

Repository

Network Slice A

Network Slice B

Network Slice C

Common

CP NFs

Common CP NFs

CP NFs for Slice C

U P NFs for Slice C

C-plane signalling

U-plane data

CNI#1

Service

CNI#2 Service

UEI#1

RAN

Default Common CP-Function

AU MM CCPSF NSSF ...

Common CP-Function specific for

CNI#1 and CNI#2

AU MM CCPSF NSSF ...

UP-Functions

... CNI-1 UPF#1

CNI-1

UPF#2

CNI-1

UPF#3

CP-Functions

... CNI-1

CPF#1 (SM)

CNI-1 CPF#2

CNI-1

CPF#3

Core Network Instance #1

CP-Functions

... CNI-2 CPF#2

CNI-2

CPF#3

UP-Functions

...

CNI-2 CPF#1 (SM)

CNI-2 UPF#2

CNI-2 UPF#3

Core Network Instance #2

CNI-2 UPF#1

The network slice is a complete logical network (providing Telecom Services, Network Capabilities) including AN and CN.

A UE may access multiple slices simultaneously via a single RAN. Slices may share some control plane functions, collectively

identified as CCNF (Common Control Network functions).

The CN part of network slice instance(s) serving a UE is selected by CN not RAN.

TR 23.799 v1.1.0 Solution 1.1

Control plane interfaces for network slicing with common and slice specific functions

TR 23.799 v1.1.0 Solution 1.3

Sharing a set of common C-plane functions among multiples Core Network Instances

Non Exhaustive!

5G Phase 1 – Quality Of Service

CN

RAN

UE

Control plane User plane

Services

Subscription

Operator control incl. configure QoS

params

Admission cntl Configure QoS

params

Configure UL params

Classify

Max rate

Transport marking Max rate

Transport marking

Transport marking

Radio Resource Mgnt (prioritization,

GBR and max rate)

Radio Resource Mgnt (prioritization,

GBR and max rate)

Max rate

Classify

App requirements from server

App requirements from terminal

UE NextGen-RAN

CN UP functions

CN CP functions AF

Content Awareness Function-

RAN

NG5

NG6

NG3

NG2

Per QoS Flow is the finest granularity for QoS treatment in the NG System. User plane traffic with the same NG3 marking value

within a PDU session correspond to a QoS flow.

Support of Reflective QoS over RAN under control of the network. The network decides on the QoS to apply on the DL traffic

and the UE reflects the DL QoS to the associated UL traffic

TR 23.799 v1.1.0 Solution 2.1

QoS functional split including 3GPP RAN TR 23.799 v1.1.0 Solution 2.3

Content Aware QoS architecture

Non Exhaustive!

5G Phase 1 – Mobility Management

CN

RAN

UE

Control plane User plane

Area registration

Area registration

Control of connected state mobility

Connected state mobility

A nchor (s )

Set user plane path

Set user plane path

Path setup/ relocation

Buffer S tate transitions

S tate transitions

S tate transitions

Buffer

User registration

User registrations

Mobility management control

Unreachability detection

Unreachability detection

Mobility restrictions

Session control

IP @

Session control

Inactive state

mobility

A single MM state model shall be specified, Core shall be able to optimize the MM Ues procedures within single MM state model

UE mobility restrictions are determined by core network based on information such as UE subscription, UE capabilities, UE

location, and/or network policies

Mobility pattern a.k.a mobility level need not be defined as a parameter that is signaled via standardized interface.

The mobility pattern is a concept used by the core network to characterize the expected UE mobility

TR 23.799 v1.1.0 Solution 3.1

High-level functions of the mobility framework

RAN1 LT

func.

Access

node

RAN UE

anchor

RAN

area 2

RAN1 LT

func.

Access Node &

RAN UE anchor

RAN

area 1

CN UE

anchor

CN-U

NG4

NG2

NG3

CN LT

func.

CN-C

UE

TR 23.799 v1.1.0 Solution 3.1.3

Split of LT functionality between RAN and CN

Non Exhaustive!

5G Phase 1 – Session Management

UE RANUP-GWbranching

function

UP-GWIP anchor 1

UP-GWIP anchor 2

CP functions

DN

NG1

NG2NG4

NG4

NG4

NG6

NG6

NextGen shall support multiple separate PDU sessions, to same/different data networks, via 3GPP/non-3GPP access at the same time.

NextGen on NG3 and between UP functions shall at least support per PDU Session tunnelling (roaming and non roaming)

PDU session types supported: IPv4, IPv6, Ethernet, Unstructured.

UE Serving SDHF

Gateway SDHF

Credential Repository

Small Data Routing: MO: MT:

SCS/ Appl. Server

Service Provider

or 3

rd Party

NG Core Control Function(CCF)

NG1 NG11

NG10

NG12

NG13

NG14

RAN NG2

SMF

NG UE NG (R)AN

NG Core

UP

function

Data Network

(local or central)NG3 NG6

NG2 NG4NG1

AFNG5

MMF

AUF

NG12 NG13

NG11

TR 23.799 v1.1.0 Solution 4.7

Architecture model for the Small Data Service - non-roaming case

TR 23.799 v1.1.0 Solution 4.7

Data transmission with ConnectionLess RAN-Core interface

TR 23.799 v1.1.0 Solution 4.13

Session Management for Parallel PDU session and Multi Homed PDU session

Non Exhaustive!

5G Phase 1 – Overall Arch. Options (7)

SM Control Function(SMCF)

Authentication Function

(AUF)

Policy Function

(PF)

ApplicationFunction

(AF)

Subscriber Database

(SDB)

MM Control Function(MMCF)

User plane Function(s)

(UPF)(R)ANUE

Interconnection & Routing Function (IRF)

Data Network

NG1 NG2

NG3

NG4

NG5

NG6

NG7 NG8NG9NG11NG10

UE NG-(R)AN NG-UP

NSSF

M

I

FAF

AU MM SM

PCFUDM

DNNG3 NG6

NG-CPNG4

NG7

NG5NG11 NG12

NG13NG15

NG10

NRF

NG14

NCE

NG16

Unified Data

Management

(UDM)

UE

Management

Function (UMF)

Policy Control

Function

(PCF)

NG UE NG (R)AN

NG Core

UP

functions

Data

NetworkNG6

NG2 NG4NG1

NG Auth.

function (AUF)

NF Repository

Function

(NRF)

Slice

Selection

Function

(SSF)

Network Exposure

Function

(NEF)

AS

ControllerApplication

NP1NP8

NP7

NP3

NP2NP4

Control Plane

NP6

NG Core

UP

functions

Data

NetworkNG6

NG3

NG4

NG3

Session

Management

Function (SMF)

NP5

TR 23.799 v1.1.0 Consolidated Options 4

Baseline NextGen System

TR 23.799 v1.1.0 Consolidated Option 1

Non Roaming Reference Architecture

TR 23.799 v1.1.0 Consolidated Options 2

Non Roaming Reference Architecture

TR 23.799 v1.1.0 Consolidated Options 7

Non Roaming Reference Architecture

Non Exhaustive!

5G Phase 1 - Final Agreement expected on SA#118

All Clear?

Are you happy?

Presentation Outline

• 5G Drivers and Expectations

• 5G Phases – What will be in “Phase One”

• What’s Next?

Ongoing Joint 5G Activities

5G-XHaul Objectives

Converged optical-wireless architecture to support both

operational network (C-RAN) and end-user services

Support jointly backhauling and fronthauling functions

maximising the associated sharing benefits

Split processing flexibly: leverage granularitity

VM

vBBU2

Data Centers

Small Cells

Wireless Access

RRH

RRH

RRH

RRH

eNB

RRH

RRHRRH

RRH

vBBU

vBBUvBBU

vBBU1

Backhaul

Fronthaul

vBBU

vBBU1 vBBU2

VM

eNB

Macro Cell

60GHz /Sub-6 links for FH/BH

FHBH

HeNBFemto Cells

HeNBHeNB GW

HeNB

WiFiWLAN GW

TSON

WDM-PON

5G-Xhaul Wireless Backhaul/Fronthaul

RRH

Ethernet EPCP-S GW/GSN

PDN-GW

Internet

CONFIG Objectives

Converged CORE Network Architecture and Control Plane

Architecture Modularisation

5G Phase 1 – Open Issues (towards Phase 2)

Two relevant 5G Issues remained unanswered from Phase 1 achievements

How to Provide the required differentiation among network slices?

How to allow or facilitate the integration of Verticals within the Telco domain?

STRONG NEED FOR (5G PPP) REASEARCH PROJECTS TO ADDRESS THE ISSUES!

Thank you www.huawei.com

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