Presenta(ononbehalfoftheTETRA+Cri(calCommunica(onsAssocia(on

LTENetworkArchitecture,InterfacesandRadioAccess

SanneSTIJVEBusinessDevelopmentManager,MobileBroadband

Ericsson

1

Presenta(ononbehalfoftheTETRA+Cri(calCommunica(onsAssocia(on

LTE/EPCArchitecture&Terminology

MME P/S GW

eNodeB

eNodeB

eNodeB

S1

EPC Evolved

Packet Core

E-UTRAN

LTE Long Term Evolution X2 X2

X2

EPS Evolved Packet System

UE UE User Equipment UE

Presenta(ononbehalfoftheTETRA+Cri(calCommunica(onsAssocia(on

LTE/EPCNetworkArchitecture

SGi

S4

S3

S1-MME

PCRF S7

S6a

HSS

S10

UE

GERAN

UTRAN SGSN

LTE-Uu

”

E-UTRAN

MME

S11

S5

Serving Gateway

PDN

Gateway

S1-U

IP Services (e.g. IMS, PSS etc.)

Rx

Presenta(ononbehalfoftheTETRA+Cri(calCommunica(onsAssocia(on

LTE/EPCconcept:EPSBearerConcept

SGW/PDN-GW Peer

EnDtyUE eNB

EPSBearerService

E-UTRARadioBS E-UTRANAccessBS

End -to-endService

ExternalBS

Uu SGi

IMSPDN(orinternet)

Physical RadioBS TransportNW

S1

E-UTRAN EPCEPS

Presenta(ononbehalfoftheTETRA+Cri(calCommunica(onsAssocia(on

DSL WLAN PSTN

IP

Conferencing – sharing – Collaboration – Presence – messaging – Multimedia telephony –

IPTV IMS

Applications

Security Reach

Authentication

Charging

Quality

WhatabouttelephonyinrelaGontoLTE?(IMS)

•  IMS:IPMulDmediaSubsystem•  IMSisanall-IPnetworkfor

mulDmediaservices•  MaindriverisVoiceoverLTE(VoLTE)

3G

HSPA

GSM

GSM

Packet Core

LTE

WCDMA

Circuit switched

Core

LTE

Presenta(ononbehalfoftheTETRA+Cri(calCommunica(onsAssocia(on

LTEAirInterface

Downlink–  Adap%veOFDM–  Channel-dependentschedulingandlinkadapta%onin%meandfrequencydomain

Uplink–  SC-FDMAwithdynamicbandwidth(Pre-codedOFDM)

–  Higherpowerefficiency–  ReducesUEcostsandenhancesbaJerylife%me frequency

frequency

Δf = 15 kHz

180 kHz

User #2 scheduled User #1 scheduled

User #3 scheduled

Presenta(ononbehalfoftheTETRA+Cri(calCommunica(onsAssocia(on

LTEAirInterface

• Flexiblebandwidth– Possibletodeployin6differentbandwidthsupto20MHz

•  HarmonizedFDD&TDDconcept–  MaximumcommonalitybetweenFDDandTDD

•  MulD-Antennas,botheNodeB&UE– TX&RXdiversity,interferencerejec%on,MIMO,antennabeams

– HighbitratesandhighcapacityTX RX

10 15 20 MHz 3 1.4 5

fDL

fUL

FDD-only

fDL/UL

TDD-only

Presenta(ononbehalfoftheTETRA+Cri(calCommunica(onsAssocia(on

LTECellcapacity

•  Furtherincreaseofcapacity:–  Addbandwidth(CarrierAggrega%on)–  UseMIMO4x4,oreven8x8–  Useadvancedmodula%on(e.g.256QAM)

3MHz 5MHz 10MHz 20MHz

Downlinkwith2x2MIMO

22Mbit/s 37Mbit/s 75Mbit/s 150Mbit/s

Uplink(noMIMO)

11Mbit/s 22Mbit/s 37Mbit/s 75Mbit/s

Presenta(ononbehalfoftheTETRA+Cri(calCommunica(onsAssocia(on

JumpersRemoteRadioUnitsOr

Radio

CPRIinterface

BasebandOr

DigitalUnit

Ba]eryBackup

LTE’seNodeBMain-remoteconcept

RadioBaseStaDon

Presenta(ononbehalfoftheTETRA+Cri(calCommunica(onsAssocia(on

LTEUECategoriesUE Category 1 2 3 4 5 6 7 8 DL Peak Rate 10 50 100 150 300 300 300 3000 UL Peak Rate 5 25 50 50 75 50 100 1500 Max bandwidth 20 MHz 40 MHz 100 MHz Max DL mod 64QAM Max UL mod 16QAM 64QAM 16QAM 64 QAM DL MIMO * No 2 4 2 or 4 8 UL MIMO * No 2 4

* : number of layers for spatial mux

VehicleModem

LTEDevicesforPublicSafety:

Presenta(ononbehalfoftheTETRA+Cri(calCommunica(onsAssocia(on

LTEBroadcast-SoluGonOverview

•  LTEBroadcastoffersMulDcastcapabiliDes

LTE RAN EPC

File

delivery

eNB/MCE

MME

BMC

BDC

CONTENT SERVICE

Live encoder

Contentstores

MBMS GW

eNB/MCE

New network element Control Plane User Plane

Presenta(ononbehalfoftheTETRA+Cri(calCommunica(onsAssocia(on

PublicSafetyLTEArchitecture

Broadband devices

Management Center

Public Safety LTE Core

Dedicated LTE access

Broadband Applications

Tetra / P25 Core

Tetra / P25 access

Commercial Mobile Network Operator

PTT Application

PTT Application

Presenta(ononbehalfoftheTETRA+Cri(calCommunica(onsAssocia(on

Thanks!

SanneSTIJVEBusinessDevelopmentManager,MobileBroadband

Ericsson

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