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Convergence between Wi-Fi and Femotocell presesented by Mark Grayson, Cisco Distinguished Engineer
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© 2010 Cisco and/or its affiliates. All rights reserved. Cisco Public 1
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
© 2010 Cisco and/or its affiliates. All rights reserved. 3Cisco Public
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
© 2010 Cisco and/or its affiliates. All rights reserved. 4Cisco Public
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
© 2010 Cisco and/or its affiliates. All rights reserved. 5Cisco Public
• 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:
© 2010 Cisco and/or its affiliates. All rights reserved. 7Cisco Public
• 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
© 2010 Cisco and/or its affiliates. All rights reserved. 8Cisco Public
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
© 2010 Cisco and/or its affiliates. All rights reserved. 9Cisco Public
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...
© 2010 Cisco and/or its affiliates. All rights reserved. 10Cisco Public
• 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
© 2010 Cisco and/or its affiliates. All rights reserved. 11Cisco Public
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
© 2010 Cisco and/or its affiliates. All rights reserved. 13Cisco Public
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
© 2010 Cisco and/or its affiliates. All rights reserved. 14Cisco Public
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
© 2010 Cisco and/or its affiliates. All rights reserved. 15Cisco Public
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
© 2010 Cisco and/or its affiliates. All rights reserved. 16Cisco Public
• 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
© 2010 Cisco and/or its affiliates. All rights reserved. 17Cisco Public
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
© 2010 Cisco and/or its affiliates. All rights reserved. 18Cisco Public
Thank you.Thank you.