converted mobile offload architectures

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Mark GraysonDistinguished Engineer

June 2011

•• Mobile Data Mobile Data –– Drivers for ChangeDrivers for Change

• Macro RAN Offload

• Offload and Convergence

• Summary

© 2010 Cisco and/or its affiliates. All rights reserved. 2Cisco Public

Te

rab

yte

s /

Mo

nth

6.3 EB

per mo

92% CAGR 2010–2015

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2010 2011 2012 2013 2014 2015

Te

rab

yte

s /

Mo

nth

3.8 EBper mo

0.24 EBper mo

2.2 EB

per mo

1.2 EB

per mo0.6 EB

per mo

Source: Cisco Visual Networking Index (VNI) Global Mobile Data Traffic Forecast, 2010–2015Source: Cisco Visual Networking Index (VNI) Global Mobile Data Traffic Forecast, 2010–2015

27%

56%

38%

ON THE GO

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34% 35%

10%

27%

Occasional User Regular User

AT HOME

IN AN OFFICE

Source: http://www.cisco.com/web/about/ac79/docs/CLMW_Mobile_Internet_v20_072809FINAL.pdf

Occasional usage: Weekly mobile Internet time spend of less than 12 minutes

• Mobile Internet Demand is non-uniform

• Peaks of demand in certain hotspots can exceed cell capacity

• Baseball stadium deployment – 5500 devices generating 52 Mbps traffic

• Some estimates predict that 12-sector

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• Some estimates predict that 12-sector cell in Olympic park will only be able to support 30% of mobile Internet traffic demand

• 12,000 devices attached to WiFi during Superbowl XLV

• How to scale metro – continuing splitting macro cells or do something different?

• Mobile Data – Drivers for Change

•• Macro RAN OffloadMacro RAN Offload

• Offload and Convergence

• Summary

© 2010 Cisco and/or its affiliates. All rights reserved. 6Cisco Public

• Future Networks supporting the Mobile Internet will need to seamlessly integrate a lot more smaller cells

• Shifting from 104 cells to 106 cells will require a change of mindset and management tools

• Key decisions that need to be considered:

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• Key decisions that need to be considered:

• Whether to use unlicensed, licensed technology or both?

• If using unlicensed, what does the “SP WiFi” architecture look like?

SGi

PCRF

Gx

HSS

Operator's IP Services

(e.g. IMS,. etc)

SWx

Rx

PDN Gateway

Gxc

S6a

3GPPAccess

ServingGateway

Integrated EPCBased Subscriber

Control

Integrated

Mobility

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S2b

SWm

HPLMN

Non-3GPP Networks

S6b

Gateway

ePDG 3GPP AAA Server

Gxb

S2a

PMIPv6

Gxa

STa

S5 Access

SP WiFi as trusted

Non-3GPP IPAccess

SP WiFi as

Trusted Non-3GPP Access

Multi-Vendor

Standards

S2c: DSMIPv6

Able to leverageClient capability

when available

Client MIPEnabledDevice

Managed Enterprise

HNB GW

Packet

Core

Residential

Packet

Core

S2a

ePDG

Supporting Untrusted

AccessConverged

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Closed Femto

Ent. Femto

EnterpriseHNB GW

HNB GW

SP WiFi

BYOWiFi

Managed EntWiFi

Guest WiFi Controller

Ent. Femto

SP WiFi as Trusted Non-3GPP Access

Managed Ent WiFi as Trusted Non-3GPP Access

AccessConverged

Small Cell Gateway

S2a

• Femto Forum defining “Open Femto” to support public deployments

• RAN vendors enhancing RNCs to support Release 8 defined Source Cell ID to enable macro-to-femto handover

• Release 10 specifications define interference co-ordination capability between LTE pico and macro

• But...

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• But...

• NPV analysis indicates that optimum deployments require dense metro access points

884 WiFi APs with directional antennas used for superbowl coverage

• Metro will benefit from economical wireless (mesh) backhaul

e.g., 1 Route AP for 4 Mesh APs for typical metro WiFi mesh deployment

Outdoor Metro Licensed

Packet

Core

Outdoor WiFi Mesh

Packet Core

S2a

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Metro WiFi

Controller

Metro HNB GW

Metro WiFi

BBU/RRH

MacroRNC

Frequency 1Frequency 2

Frequency 3

Metro WiFi

Metro WiFi

MetroFemto

MetroFemto

LIPA/SIPTO offloade.g., for stadium traffic

Mesh Backhaul Mesh Backhaul

SP WiFi as Trusted Non-3GPP Access

• Mobile Data – Drivers for Change

• Macro RAN Offload

•• Offload and ConvergenceOffload and Convergence

• Summary

© 2010 Cisco and/or its affiliates. All rights reserved. 12Cisco Public

Home Operator

HSS

H-PCRF

MME

GERAN

UTRAN

E-UTRANIP

ServicesPDN

Gateway

3GPPAAA

Serving Gateway

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Fixed BroadbandOperator

IP Services

AccessNetwork

Fixed AAA

RG

Home Network

eBNG

V-PCRF

S9

AAA

Home Operator

HSSMME

GERAN

UTRAN

E-UTRANIP

ServicesServing Gateway

PDN Gateway

Small Cell GW/SeGW

H-PCRF3GPPAAA

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Fixed BroadbandOperator

IP Services

AccessNetwork

Fixed AAA

RG

Home Network

eBNG

V-PCRF

FemtoInfrastructure IPSec

for E2E Security

UE

LTE Uu

802.11i

S9

AAA

S15/S16

MNOWiFi Fixed

WiFi

Conventional MNO

HSSMME

GERAN

UTRAN

E-UTRANIP

ServicesServing Gateway

PDN Gateway

3GPPAAA

H-PCRF

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Small Cell Access Operator

IP Services

AccessNetwork

BNG/CMTS

Small Cell Gateway

SmallCell Metro

Premise

SmallCell RG

SmallCell ENT

Small Cell Controller

Enterprise Controller

EntServices

V-PCRF

• Mobile Data – Drivers for Change

• Macro RAN Offload

• Offload and Convergence

•• SummarySummary

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• Mobile networks need to support the integration of many more smaller cells which offload the legacy macro network

• 3 deployment use cases available:

Bring Your Own WiFi

Licensed Femto

SP Managed WiFi

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SP Managed WiFi

• Supported by 3 offload different scenarios:

Residential

SMB/Enterprise

Metro/Hotspot

• One converged, EPC-centric architecture can address all use cases and scenarios

Licensed/Un-licensed, Trusted/Un-trusted, Resi/Ent/Metro

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Thank you.Thank you.