Evolution of the 3GPP Network Architecture, UTRAN HSPA UTRAN HSPA+ LTE HRPD 802.16 ... • Low...

19
© 3GPP 2011 3GPP Workshop, Bangalore, 30 May 2011 1 Evolution of the 3GPP Network Architecture, (the Evolved Packet Core) Dr. Sungho Choi Vice Chairman of 3GPP TSG SA

Transcript of Evolution of the 3GPP Network Architecture, UTRAN HSPA UTRAN HSPA+ LTE HRPD 802.16 ... • Low...

Page 1: Evolution of the 3GPP Network Architecture, UTRAN HSPA UTRAN HSPA+ LTE HRPD 802.16 ... • Low priority indicator has been added to the relevant UE-network procedures ... • Signaling

THE Mobile Broadband Standard

© 3GPP 2011 3GPP Workshop, Bangalore, 30 May 2011 1

Evolution of the 3GPP Network

Architecture,(the Evolved Packet Core)

Dr. Sungho Choi

Vice Chairman of 3GPP TSG SA

Page 2: Evolution of the 3GPP Network Architecture, UTRAN HSPA UTRAN HSPA+ LTE HRPD 802.16 ... • Low priority indicator has been added to the relevant UE-network procedures ... • Signaling

THE Mobile Broadband Standard

© 3GPP 2011 3GPP Workshop, Bangalore, 30 May 2011

Air Interface Technology Evolution

‘02

‘12

‘04‘08‘06

‘10

‘00

2M/768K

14M/768K

14M/5.7M

28M/11.5M

42M/5.7M

84M/23M

300M/75M

2M/768K

Rel. 8 & 9LTE

Rel. 99WCDMA

Rel. 4TD-SCDMA

Rel. 5HSDPA

Rel. 6HSUPA

Rel. 7HSPA+

Rel. 8HSPA+

Rel. 9HSPA+

Peak Data Rate (bps)DL/UL

WCDMA

OFDMA

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Page 3: Evolution of the 3GPP Network Architecture, UTRAN HSPA UTRAN HSPA+ LTE HRPD 802.16 ... • Low priority indicator has been added to the relevant UE-network procedures ... • Signaling

THE Mobile Broadband Standard

© 3GPP 2011 3GPP Workshop, Bangalore, 30 May 2011

Network Architecture Evolution

Node B

RNC

SGSN

GGSN

MSC

Operator’sIP Services

(e.g., IMS, PSS etc)

PSTN

eNode B

S-GW

P-GW

Operator’sIP Services

(e.g., IMS, PSS etc)

‘01

‘11

‘03‘07‘05

‘09

‘99

‘13

Circuit/GPRS Core Network

Evolved Packet Core Network

Control Plane delay : 100msUser Plane delay : 5ms

MME

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Page 4: Evolution of the 3GPP Network Architecture, UTRAN HSPA UTRAN HSPA+ LTE HRPD 802.16 ... • Low priority indicator has been added to the relevant UE-network procedures ... • Signaling

THE Mobile Broadband Standard

© 3GPP 2011 3GPP Workshop, Bangalore, 30 May 2011

3GPP Organization structure

Project Coordination Group

TSG RANRadio Access N/W

RAN1Radio Layer 1

RAN2

Radio Layer2/3

RAN3

Access I/F

RAN4

Radio Performance

RAN5

Conformance Test

TSG SASystem Architecture

SA1Services

SA2

Architecture/Stage2

SA3

Security

SA4

Codec

SA5

O&M, Charing

TSG CTCore

Network&Terminal

CT1

NAS (UE-MME I/f)

CT3

Network I/F to out

CT4

Network I/F in 3GPP

CT6

UICC I/F

Smart Card Appl.

TSG GERANGSM/EDGE RAN

GERAN1

PHY

GERAN2

Layer2/3, Access I/F

GERAN3

Conformance Test

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Page 5: Evolution of the 3GPP Network Architecture, UTRAN HSPA UTRAN HSPA+ LTE HRPD 802.16 ... • Low priority indicator has been added to the relevant UE-network procedures ... • Signaling

THE Mobile Broadband Standard

© 3GPP 2011 3GPP Workshop, Bangalore, 30 May 2011

Key LTE/SAE Features

Rel.8 LTE (~09/03)

• 20MHz, OFDM New Air

• DL 4x4 MIMO

• SON, HeNB

• SAE For LTE Access

• CS Fallback in EPS

• Single Radio VCC

• Peak: DL 300Mbps,

UL 75Mbps

Rel.9 LTE (~10/03)

• Enhanced Dual-Layer Tx

• SON/HeNB Enhancement

• IMS Emergency Calls

• LCS for LTE and EPS

• MBMS support in EPS

• Peak: DL 300Mbps,

UL 75Mbps

SON: Self Organizing Network, HeNB: Home eNB, SAE: System Architecture Evolution

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Page 6: Evolution of the 3GPP Network Architecture, UTRAN HSPA UTRAN HSPA+ LTE HRPD 802.16 ... • Low priority indicator has been added to the relevant UE-network procedures ... • Signaling

THE Mobile Broadband Standard

© 3GPP 2011 3GPP Workshop, Bangalore, 30 May 2011 6

Evolved Packet Systemarchitecture

hPCRF

HSS

SWn

Operator's IP Services

(e.g. IMS, PSS etc.)

Trusted Non - 3GPP IP

Access SWa

HPLMN

SWd

Non - 3GPP Networks

VPLMN

vPCRF

ePDG

SWm

Untrusted Non - 3GPP IP

Access STa

3GPP AAA Server

S2c

S2c

S9

SGi

Gx

Rx

S6 b

UE

3GPP AAA Proxy

SWx

Gxa

Gxb

Gxc

S8

S6a

S2c

3GPP Access

Serving Gateway

PDN Gateway

Many 3GPP access technologiesMobility between access technologiesMultiple roaming modelsNon-3GPP accesses

LTE

WIMAX

GSM1900EDGE

GSM1800

GSM450GSM900

UTRAN

UTRAN

HSPA

UTRAN HSPA+

LTE

HRPD

1xRTT 802.16

LTELTE1800

LTE2600

WLAN3GPP2

GERAN

UTRAN

Page 7: Evolution of the 3GPP Network Architecture, UTRAN HSPA UTRAN HSPA+ LTE HRPD 802.16 ... • Low priority indicator has been added to the relevant UE-network procedures ... • Signaling

THE Mobile Broadband Standard

© 3GPP 2011 3GPP Workshop, Bangalore, 30 May 2011

CS Fallback in EPS

eNB

MME

HSS

UE

Serving Gateway

PDNGateway

PCRF

RNC

MSC

Node B

GMSC

Operators’ IP Services

Application of CSFB:• CS capable device camping on LTE

cell can establish/receive CS services

• Reuse of existing CS infrastructure for voice service until IMS VoIP is deployed

• Provide voice roaming support with LTE

• Can support emergency calls using existing CS infrastructure

SMS can be delivered to the UE

without redirecting to CS Domain

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Page 8: Evolution of the 3GPP Network Architecture, UTRAN HSPA UTRAN HSPA+ LTE HRPD 802.16 ... • Low priority indicator has been added to the relevant UE-network procedures ... • Signaling

THE Mobile Broadband Standard

© 3GPP 2011 3GPP Workshop, Bangalore, 30 May 2011

Single Radio Voice Call Continuity

eNB

MME

HSS

UE

Serving Gateway

PDNGateway

RNC

MSC Server

Node B

P-CSCF

S-CSCFSCC AS

UE

UE

MGW

UE

IMS

SRVCC use case:• IMS call initiated in LTE can continue

in CS domain after moving outside of LTE coverage area

• SR-VCC is invoked if no other VoIP capable PS system (HSPA/eHRPD) is available for VoIP PS-PS HO

• Requires overlapping with GSM/WCDMA/1xRTT coverage

SRVCC improvements:• Mid-call services (like HOLD & MPTY)

• emergency calls

• video calls

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Page 9: Evolution of the 3GPP Network Architecture, UTRAN HSPA UTRAN HSPA+ LTE HRPD 802.16 ... • Low priority indicator has been added to the relevant UE-network procedures ... • Signaling

THE Mobile Broadband Standard

© 3GPP 2011 3GPP Workshop, Bangalore, 30 May 2011

3GPP Schedule2009 2010 2011 2012 2013

2H 1Q 2Q 3Q 4Q 1Q 2Q 3Q 4Q 1Q 2Q 3Q 4Q 1Q 2Q 3Q 4Q

Rel.8

Rel.9

Rel.10

Rel.11

Stage 3 ASN.1 Freeze

’10/03’09/12

ASN.1 Freeze

’11/06’11/03

Stage 1

’10/03

Test spec

ASN.1 Freeze

’12/09’12/03’11/09 ’12/12

’10/09

Stage 2 Stage 3 Test spec

Stage 1 Stage 2 Stage 3

First LTE launch (09/12)

Rel.8 Commercialization

Test spec

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Page 10: Evolution of the 3GPP Network Architecture, UTRAN HSPA UTRAN HSPA+ LTE HRPD 802.16 ... • Low priority indicator has been added to the relevant UE-network procedures ... • Signaling

THE Mobile Broadband Standard

© 3GPP 2011 3GPP Workshop, Bangalore, 30 May 2011

Key Rel.10/Rel.11 Features

Rel.8 LTE (~09/03)

• 20MHz, OFDM New Air

• DL 4x4 MIMO/ UL 1x2 MIMO

• SON, HeNB

• SAE For LTE Access

• CS Fallback in EPS

• Single Radio VCC

• Peak: DL 300Mbps, UL 75Mbps

Rel.11 (~12/12)

Rel.9 LTE (~10/03)

• Enhanced Dual-Layer Tx

• SON/HeNB Enhancement

• IMS Emergency Calls

• LCS for LTE and EPS

• MBMS support in EPS

• Peak: DL 300Mbps, UL 75Mbps

Rel.10 LTE-Adv (~11/06)

• DL 8x8 MIMO, UL 4x4 MIMO

• Carrier Aggregation

• HetNet, MDT

• HeNB Local IP Access

• Wifi offloading

• Machine Type Communication

• Peak: DL 1Gbps, UL 500 Mbps

• CoMP

• Enhancement of Rel.10 features

• System Improvement of MTC

• Service Awareness and Privacy Policies

• IW MNO and Application Provider

• Data Application Impacts

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Page 11: Evolution of the 3GPP Network Architecture, UTRAN HSPA UTRAN HSPA+ LTE HRPD 802.16 ... • Low priority indicator has been added to the relevant UE-network procedures ... • Signaling

THE Mobile Broadband Standard

© 3GPP 2011 3GPP Workshop, Bangalore, 30 May 2011 11

Local IP Access (LIPA)

scope of Local IP access

logical connection for mobile

operator IP traffic

Residential/

enterprise

IP Network

Mobile

operator’s

core

network

UE

Local IP traffic

IP traffic to mobile operator’s CN

All traffic

on 3GPP

radio

LIPA is primarily for end user’s benefit, to allow access to local residential or corporate network through a 3GPP device

LIPA provides access for IP capable UEs that are connected via a H(e)NB subsystem to other IP capable entities in the same residential/ enterprise IP network.

Simultaneous access from a UE to the mobile operator’s core network and Local IP Access to a residential/enterprise IP network will be supported.

Page 12: Evolution of the 3GPP Network Architecture, UTRAN HSPA UTRAN HSPA+ LTE HRPD 802.16 ... • Low priority indicator has been added to the relevant UE-network procedures ... • Signaling

THE Mobile Broadband Standard

© 3GPP 2011 3GPP Workshop, Bangalore, 30 May 2011 12

WLAN Offloading

WLAN offloading refers to the dual radio scenario where part of the traffic is routed via WLAN access and part via 3GPP access

WLAN offloading covers both the scenario where the traffic via WLAN radio is anchored in the EPC (i.e., seamless offloading) and the scenario where it is not anchored (i.e., non-seamless offloading)

Access Network Discovery and Selection Function (ANDSF) is there to provide the UE with the access network discovery information and the policy on how to use the available access networks

• Available access networks

• Preferred routing of the traffic per APN, per IP flow

WLAN 3GPP

RAT

EPCANDSF

UE

HA

Page 13: Evolution of the 3GPP Network Architecture, UTRAN HSPA UTRAN HSPA+ LTE HRPD 802.16 ... • Low priority indicator has been added to the relevant UE-network procedures ... • Signaling

THE Mobile Broadband Standard

© 3GPP 2011 3GPP Workshop, Bangalore, 30 May 2011

Pool of MTC devices

MTC server

MTC serverFAIL!!!

Overload

Machine Type Communication

M2M is recognized as a key segment in future packet networks

Initial 3GPP efforts have focused on the ability to differentiate machine-type devices

• This allows the operator to selectively handle such devices in overload situations

• Low priority indicator has been added to the relevant UE-network procedures

• Overload and Congestion control is done on both core network and radio access network based on this indicator

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Page 14: Evolution of the 3GPP Network Architecture, UTRAN HSPA UTRAN HSPA+ LTE HRPD 802.16 ... • Low priority indicator has been added to the relevant UE-network procedures ... • Signaling

THE Mobile Broadband Standard

© 3GPP 2011 3GPP Workshop, Bangalore, 30 May 2011

MTC – basic architecture

Work in progress…

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3GPP Boundary

MTC Server

GGSN / PGW / PDG

Proxy (TBD)

SGSN / MME

HLR / HSS

API MTCi

SMS-SC IP-SM-GW

Legacy SMS

IP SMS

MTCsp

Indirect model – service provider controlled

Indirect model – operator controlled Gr/S6a

Um / Uu /

LTE-Uu

RAN M2M

Application

Internal interfaces

(TBD)

Control plane User plane

Direct model Gi/SGi

M2M Application UE

MTC User

MTCsms

Page 15: Evolution of the 3GPP Network Architecture, UTRAN HSPA UTRAN HSPA+ LTE HRPD 802.16 ... • Low priority indicator has been added to the relevant UE-network procedures ... • Signaling

THE Mobile Broadband Standard

© 3GPP 2011 3GPP Workshop, Bangalore, 30 May 2011

Evolution of MTC

Further functionality being added to 3GPP standards in the following areas• Reachability Aspects, MTC Feature control, Device Triggering

• Addressing, Identifiers - especially removal of MSISDN dependencies in the architecture

• Signaling Optimizations, Small Data Transmissions, MTC Monitoring

MTC is a substantial technical area, full completion will span across multiple future Releases

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Page 16: Evolution of the 3GPP Network Architecture, UTRAN HSPA UTRAN HSPA+ LTE HRPD 802.16 ... • Low priority indicator has been added to the relevant UE-network procedures ... • Signaling

THE Mobile Broadband Standard

© 3GPP 2011 3GPP Workshop, Bangalore, 30 May 2011

Rel.11: Service Awareness and Privacy Policies

Analyzing traffic, standardization of detecting the service traffic and

applying the policy

eNB SGW

MME

PGW TDF

PCRF

UDR/SPR

1) Request Detection

(application id,..)

2) Report Detection

(service flow info,…)

0) Get subscription

including PCC info

3) Install the

changed Rule Sd

• Traffic Detection Function newly defined

• Performs the following for the Detected traffic

• Gating of the detected service traffic either blocking or

permitting unrestricted

• Traffic Shaping of the detected service traffic

• Redirecting of detected service traffic

TDF: Traffic Detection Function

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Page 17: Evolution of the 3GPP Network Architecture, UTRAN HSPA UTRAN HSPA+ LTE HRPD 802.16 ... • Low priority indicator has been added to the relevant UE-network procedures ... • Signaling

THE Mobile Broadband Standard

© 3GPP 2011 3GPP Workshop, Bangalore, 30 May 2011

Rel.11: IW MNO and Data Application Provider

Interface will be provided toward 3rd Party Data Application

Provider

• The following services will be proved over the newly defined interface

• Customised billing/charging, Promotion services, Group addressing

capabilities, identity services, statistics etc

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Page 18: Evolution of the 3GPP Network Architecture, UTRAN HSPA UTRAN HSPA+ LTE HRPD 802.16 ... • Low priority indicator has been added to the relevant UE-network procedures ... • Signaling

THE Mobile Broadband Standard

© 3GPP 2011 3GPP Workshop, Bangalore, 30 May 2011

Study on Non-MTC Mobile Data Application Impacts

Study on Service Scenario and Use case on Mobile data application

Study on Network inefficiency from Mobile data application

Connection

mgmt

traffic Congestion

Service request : Idle to active transition

# of messages

per Busy Hour

MME

HSS

Overload

<Flood of registration by special event>

Surge of attach reqs

<Failure/restart of nodes>

MME

HSS

Old eNB fail!

Reg to new eNB

Overload

(Problem 1)

(Problem 2)

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Page 19: Evolution of the 3GPP Network Architecture, UTRAN HSPA UTRAN HSPA+ LTE HRPD 802.16 ... • Low priority indicator has been added to the relevant UE-network procedures ... • Signaling

THE Mobile Broadband Standard

© 3GPP 2011 3GPP Workshop, Bangalore, 30 May 2011

Thank You

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www.3gpp.org

More Information about 3GPP:

[email protected]

Dr. Sungho Choi

3GPP TSG SA chairman

+82 31 279 5116

[email protected]