LTE nice doc

HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential

Security Level:

47pt

www.huawei.com

Huawei EPC - Taking Mobile Broadband to New Heights

http://www.huawei.com


Huawei EPC Value PropositionHuawei EPC Value Proposition22

11 LTE-EPC Network OverviewLTE-EPC Network Overview

Contents

Huawei EPC UpdatesHuawei EPC Updates33


Top OperatorOther Operators

Evolution Road of Mobile Communication

• Co-Existing with Several Roads§ 3GPP with bright foreground / UMB is stopped / WiMax rising

3GPP HSPA+HSPA+HSPAHSPAUMTSUMTSGSMGSM

3GPP2 Rev.BRev.BRev.ARev.AEVDOEVDOCDMACDMA UMBUMB

IEEE 802.16m802.16m802.16e802.16e802.16d802.16d

LTE/LTE/SAESAE


Stage 3 Freeze atDecember 2008 FutureStage 3 Freeze at

December 2007

R8 R9R7

• Direct Tunnel• PCC Architecture

• LTE access• Interoperation between

LTE and legacy cellular PS accesses

• non-3GPP accesses• Single Radio Voice Call

Continuity (SRVCC)• CS Fallback• EPC Charging• UE-AMBR/ Dual stack• ISR• Voice support

• Emergency Call• SON

UMTS/HSPA feature enhancement

Network evolutionNetwork evolutionIntroduction of LTE/SAEIntroduction of LTE/SAE

LTE/SAEfeature enhancement

SAE in 3GPP Standard


High Performance• Efficient Radio and flexible spectrum

utilization

• Higher data rates, lower latency

• Increasing Coverage

Advanced Architecture• All IP Flat network

• Multi-access with service continuity

• Simplified QoS model

Cost Effective and Easy Maintenance• Low cost per bit and low OPEX

• Cost effective migration

• Enhanced network security

Others

Uplink

Downlink

2M bps500k bpsAverage Speed

50M bps5.76M bpsMax Theory Speed*

10M bps5M bpsPeak Speed

100M bps14.4M bpsMax Theory Speed*

EUR0.03

500T bps

14M bps

1M bps

HSPA LTE

EUR0.01Cost / Mbytes **

1800T bpsThroughput / month

20M bpsPeak Speed

4M bpsAverage Speed

HSPA vs. LTE

* with Max spectrum support (20MHz for LTE)** based on network module with 10,000 NodeB

Benefits of EPC Network


• MME(Mobility Management Entity ): Mobility, UE Identity and Security

• S-GW（Serving Gateway）:The anchor point for 3GPP access• P-GW(PDN Gateway): The data bearer anchor

HSS（home subscriber server ): Database for storing subscription dataPCRF(Policy and Charging Rules Function):QoS control and service-based charging

Evolved Packet CoreE-UTRAN

EPC: Next Generation Core Network

Internet

PCRF

PDN-GW

MME

S4 SGSN

S-GW

GERAN

Gn/Gp SGSN

Operator OwnedService (IMS)

AS2/3 Packet Core

UTRAN

HSS

GGSN

OperatorControlled

Service

AS


Evolved Packet Core

E-UTRAN

Non-3GPP access to EPC Network

Internet

OperatorControlled

Service

AS

MME

S-GWOperator Owned

Service (IMS)

AS

HS-GW

ePDG

PCRF

Non-3GPP Network

HSS

PDN-GW

PDN-GW will be the unique anchor for all kinds of PDN

HSS

3GPP-AAA

WLANAP

3GPP2eAN

HS-GW:HRPD Serving-GW ePDG :Evolved Packet Data Gateway




Contents


EPC Network DeploymentEPC Network Deployment


Network Design Overview

eNodeB eNodeB

Tracking Area

…

eNodeB eNodeB

Tracking Area

…

eNodeB eNodeB

Tracking Area

…

Internet

P-GW

S-GW

•• LTE Backhaul topology LTE Backhaul topology is similar to 3G CS/PS is similar to 3G CS/PS networknetwork

•• MME holds centralized MME holds centralized deploymentdeployment

•• Gateway goes down Gateway goes down closer tocloser to radio partradio part

•• Traffic requires higher Traffic requires higher throughput throughput

•• MME deployment location is similar to the legacy MSC/SGSNMME deployment location is similar to the legacy MSC/SGSN•• SS--GWGW’’ss location is similar to the legacy RNC/BSClocation is similar to the legacy RNC/BSC•• PP--GWGW’’ss location is closer to the Internet/PDN Breakoutlocation is closer to the Internet/PDN Breakout

Confluence layer

MME




Contents


EPC Deployment ScenariosEPC Deployment Scenarios


Scenario 1: Building New EPC Network

MME

SAE-GW

GERAN UTRAN

SGSN

GGSN

MME

GERAN UTRAN

SGSN

E-UTRAN

GGSN+SAW-GW Pool

E-UTRAN

GGSN+SAW-GW Pool

GERAN UTRAN

MME+SGSN Pool

E-UTRAN

• Deployment Steps1. Build a standalone EPC network2. Upgrade the SAE-GW to UGW3. Upgrade the MME to USN4. SGSN/GGSN disappears gradually

• Advantages• No negative impact on the existing Network

• Disadvantages• Complex network mixed with PS and EPC


Scenario 2: Upgrade from Existing PS

GGSN+SAW-GW Pool

GERAN UTRAN

SGSN

GGSN

GERAN UTRAN

GGSN+SAE-GWMME+SGSN

E-UTRAN GERAN UTRAN

MME+SGSN Pool

E-UTRAN

•Deployment Steps• Update the existing SGSN/GGSN to

USN/UGW directly

•Advantages• Simplest network deployment• Good user experience

•Disadvantages• Unnecessary instability factors




Contents


Interworking with Legacy NetworkInterworking with Legacy Network


Inter-working with legacy PS by Gn/Gp

GSM BSSBTS BSC/PCU

UMTS RANNodeB RNC

GGSNInternet

E-UTRANeNodeB

MME

Gn Gn

S11

S-GW

P-GW

Legacy PS

EPC/LTE

Gi

Gi/SGi

In this solution, MME translates the security context of EPC into the legacy PS format, translates the R8 QoS profile into R99/R97 QoS profile and just acts as a SGSN to interconnect with legacy PS core. The gateway also supports GGSN function at the same time and can act as the common anchoring point for the multi-mode UE wherever the UE is in EPC or in the legacy PS core.

Gn/GpSGSN


Inter-working with legacy PS by S3/S4

GSM BSSBTS BSC/PCU

UMTS RANNodeB RNC

Legacy PS

EPC/LTE

S3Internet

E-UTRANeNodeB

MME P-GW

S4

S11

S1-MME

SGi

S-GW

S1-U

Generally, these two logic functions are combined into

one physical node.

The EPC core is interconnected with legacy 2G/3G PS core by S3/S4 interface. In this solution, the existing SGSN should be upgraded to become S4 SGSN and the existing GGSN should be upgraded to become SAE-GW. The serving gateway becomes the common anchoring point between LTE and 2G/3G. In this case, the legacy PS core can enjoy some enhancement of R8, such as the label QoS profile, the idle signaling reduction and so on.

S4 SGSN




Contents


Voice SolutionVoice Solution


CS Fallback

NodeB RNC

eNodeB SAE-GW

2G/3G

LTE

MSC/VLR

SGs

Paging

Pagin

g Re

spon

se

HSS/HLR

Inte

r-sy

stem

cha

ngeInitiate voice call

MME

• Provisioning voice call (or other CS services, excluding SMS) in 2G/3G GERAN and UTRAN coverage§ CSFB needs to cover RAN and LTE simultaneously§ Possible to handover the ongoing data session to 2G/3G PS if the target cell supports PS and

CS simultaneous sessions


SRVCC

NodeBEMSCEMSC

Han

dove

r

MME

SAE-GWeNodeBSRVCC UE

RNC

SGSN

MSC

MAP E ISUP

Iu-cs

Iu-cs

Sv

Iu-ps

VCC AS

3GPP3GPPIMSIMS

Bearer before handoverBearer after handoverSIP signaling

• Single Radio Voice Call Continuity§ SRVCC needs IMS§ SRVCC happens when voice handover from LTE to RAN after the voice service has begun§ Data service is independent of the Voice handover§ The voice service anchor becomes the IMS network in SRVCC




Contents


E2E TracingE2E Tracing


Network Based Tracing in EPC

HSS

MME

PGWSGW

eNodeB

eNodeB

eNodeB

eNodeB

Core Site A

Core Site B

Local Site A

Local Site B

Local Site C

Local Site D

Local traceLocal trace

Local trace

Local trace

Local trace

EMS(GUI)

Solution:• An E2E network based tracing can be triggered through the GUI on EMS

• The tracing command will be passed to all NEs in CN and RAN via different interfaces

• The first node in the tracing path can be HSS or MME

Solution:• An E2E network based tracing can be triggered through the GUI on EMS

• The tracing command will be passed to all NEs in CN and RAN via different interfaces

• The first node in the tracing path can be HSS or MME

Benefits: • Replace the local tracing in remote sites by a single network triggered tracing

• Dramatic reduction of effort for error finding and maintenance

Benefits: • Replace the local tracing in remote sites by a single network triggered tracing

• Dramatic reduction of effort for error finding and maintenance





Contents


Huawei EPC Solution Overview


Based on PGP Platform

GGSN

SGW

PGW

SCCG

PDSN

HSGW

EPDG

WASN

BRAS

Based on ATCA Platform

MME

SGSN

AG

DNS

CG

CSCF

PCRF

SPR

HSS

M2000

Unified Control Node Unified Data NodeU

nified OA

MU

nified Packet Gatew

ayHuawei USN9810• ATCA based• Unified Control• Unified Data• Unified OAM• High Scalability• High Density• 12M SAU, 24M

PDP, 20Gbps

Huawei UGW9811• PGP based • 1 Chassis design• Real converged

gateway: 3GPP, 3GPP2, WiFi, WiMAX, DSL

• 5M ~ 10M PDP• 50 ~ 100Gbps

• One Network with most comprehensive products support in industry

• Single Chassis with big capacity, high density and low cost

• E2E enhanced features support with Huawei RAN

• Strong R&D support forcustomized development

• Market proven delivery and engineering

Huawei EPC Solution

Huawei EPC Portfolio


• Key Feature of Unified Serving Node• Large subscriber capability for centralized

management• Multi access network converge management• service management platform consistency• Serving GW is optional according to Customer

requirement• Key Feature of Unified Gateway

• High throughput and strict QoS, guaranteed by dedicated hardware

• Abundance network interface for BS connecting to GW

• DPI by dedicated hardware• Key Feature of Unified USN and GW

• Only SW updates for new functionality and hardware platform

• One Node support multi-access at the same time

SGSN SGSN

UMTS AG

SGSN

UMTS AG

MME

SGSN EvolutionUSN

GGSN GGSN

DPI

GGSN

S-GW\/P-GW

PDSN/HS-GW

GGSN EvolutionUGW

• Benefits• Simplified network deployment• Decreasing the CAPEX/OPEX

Unified Platform for EPC


Mature Solution, First to Marketl Early Researchl (OFDMA, MIMO, All IP, etc)

2009

2008

20072004

2010

l 1st Prototypel Lab Test

l Trial Versionsl Complete Field Trials

l World’s 1st Commercial Contractl World 1st LTE-EPC commercial call (Jun 4) l World 1st TD-LTE Hand-off Test for NGMN (May

14) & TD-LTE LSTI

l CMCC TD-LTE for World Expo 2010

Oslo The Capital of NorwayPopulation 5.3 million, 453 Square kilometers


Huawei Achievements on LTE-EPC

1st MBB Connection

• World’s 1st Commercial LTE-EPC Contract

• World’s 1st LTE Mobile Broadband Connection on 4 June 2009

Leading in EPC market, 13 commercial contracts, 60+ including Trials

Team Up With CMCC

• The only vendor for 100% past at one time in CMCCTest.

• The only vendor to provideall the commercial available products

LTE-EPC Field Trial

• >100% handover successful rate, crossing Innsbruck city

• Replacing E/// as the partner of TMO in Barcelona GSMA

HISILICON SEMICONDUCTORHUAWEI TECHNOLOGIES CO., LTD. Page 27

Active Role in Standard Group• Official party of LSTI on

28th August 2007.• Official member of LSTI

Steering Board • As the sponsor of LSTI,

Huawei has attended several IOT initiated by operators, such as CMCC etc.

• IETF• IEEE• 3GPP2• WiMAX Forum• BroadBand Forum• CCSA (China

Communication Standard Association)

• …

3GPP MajorContributor

LSTIBoard Member

NGMN Sponsor

Win-Win

Other Standard Organization

n No.1 LTE-EPC essential patents holder (36%)

n Major contributor of 3GPP, 14% SA2/CT contributions for SAE (2300+)

• SEVEN important standard seats ( one 3GPP CT vice chairman, one CT3 vice chairman and some reporters )

• Live show of LTE-EPC solution in NGMN meeting in June 2010

• Sponsor of several groups, such as Technical Group, Trial group, Ecosystem Group, and so on

Thank youwww.huawei.com

http://www.huawei.com

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