4g world 2011 femtocells
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Femtocells How to get themost out of your nework
October 24th, 2011
4GWorld, Chicago
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FEMTOCELLS ARE A LOW COST SOLUTION TO
IMPROVE INDOOR VOICE & DATA
Data Usage Increasing RapidlyMajority ofVoice and Data Usage Indoors
1Includes both data and voice traffic , indoor includes both home and office
Mobile data traffic more thandoubled in 2010, and predictedto grow 10-12x from 2010-2015
More deployed3G Femtos than
3G Macros
70% of all voiceand data trafficindoor in 20081
- Strategy Analytics, March 2011- Informa June 2011 - Informa 2008
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A Low Cost Solution To Increase IndoorCoverage and Capacity
Femtocell
Qualcomm: Industry Leading Femto PlatformComprehensive, highly integrated solution with state of the art UltraSONinterference management
Expands Beyond Hot-Spotto Femto NetworksTo enable dense, large scale residential and enterprise deployments
Improved Voice, Higher Data Rate, Macro OffloadWith existing devices
Requires Innovative Interference ManagementDue to restricted access but also for large scale open access deployments
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Small Cells Will ProvideThe Next Leap In Performance
Evolved 3G(EV-DO Rev. B & HSPA+)
Data optimized 3G(EV-DO & HSPA)
3G (IMT-2000): Voice & Data(e.g. CDMA2000 1X & WCDM A)
2G: Voice Capacity(Digital e.g. GSM & IS-95)
1G: Voice(Analog e.g. AMPS)
Next Generation
Leap
Next Generation
Leap
Next Generation
Leap
Radio link
approaching
theoretical limit
LTE(OFDMA)
1Leveragi ng heterogeneous network topology: macro network with added small cells like pi cocells and femtocells
Bring network closer to users andleverage Hetnets1add small cells
for next leap in performance
Different dimension of improvement:adding small cells like picos andfemtos and mitigate interference
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Femtocells Evolve To Femto Networks
RESIDENTIAL SMALL ENTERPRISE LARGER SCALE ENTERPRISE / RESIDENTIAL
Next: Denser Indoor And EvenOutdoor DeploymentsInitially: Indoor Hot-Spots
Deployed by userunplanned
Supports restricted access
Users broadband connection
Scalable Femto network architecture
Also deployed by operator
More enterprise and open access
Inter-Femto service continuity (soft HO)
Interference coordination
FEMTOCELLSUSED AS
TRADITIONALPICOCELLS
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Femtocells Deliver Both End-User andOperator ValuesWith Existing Devices
OPERATOR BENEFITS
END-USER BENEFITS
IMPROVED VOICE QUALITY AND HIGHER DATA RATES
ENABLES WIRELES SUBSTITUTION
BASED ON LOCATION, INTERACTION WITH MEDIA, ETC
OFFLOADS MACRO NETWORK
INDOOR COVERAGE MAIN CHURN REASON.REDUCE BACKHAUL, SITE COST
ADDITIONAL ARPU FEMTO, TARIFFS,BUNDLES, FEMTO ZONE SERVICES
Femtocell
Personal / Business AccessPublic Enterprise Access
MacrocellTower
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Macro Usersserved by macro
Femto Usersserved by
1) macro 2) femto
180 kbps
Y
250 kbps
80Y
390 kbps
14.5 Mbps
Femtocells Offload the Macro Network andEnable High Data Rates
Assumptions: Exampl e for HSPA+. 16 Users per cell fo r dense urban HSPA+ sys tem: 10 macro users and 6 home users served either by macrocell or added femto cells. Rx diversity and MMSEEqualizer used. The median user data rates are shown. Note: Al so, the worst 10% of macro users get ~15% higher throughput with proper interference management techniques.
MACROCELL OFFLOADED
MacroOnly
FemtosAdded
X
1.5X
FEMTO USERS SERVEDBY NEAR PEAK RATES
MacroOnly
FemtosAdded
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Handset Advanced Receivers Even MoreBeneficial for Femto DeploymentsRECEIVE DIVERSITY AND EQUALIZER IMPROVES QUALITY AND CAPACITY
Assumptions: Dense urban system simulation for HSPA+. 16 Users per cell : 10 macro users and 6 ho me users served either by macrocell or added femto cells. Rx diversity and MMSEEqualizer used. The median user data rates are shown for macro users and the 10% percentile for the worst femto users.
Home Users ImpactedBy Neighbor Femto
Close Macro User impacted
(Restricted Access )
ALL MACRO USERS
IMPROVED
WORST FEMTO USERS
IMPROVED MOST
140 kbps
390 kbps
X
>3X
3.2 Mbps
X
6.2 Mbps
2X
2 RX antennasand Equalizer
1 RX antenna
Median DL data rates
macro users
1 RX antenna
10% worst femto users
DL median data rates
2 RX antennasand Equalizer
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Femtocells Require Innovative Interferenceand Mobility ManagementENABLING LARGE SCALE DEPLOYMENTS
INTERFERENCEMore severe withrestricted access
MacroUser
Optimalcoverage?
FemtoUser
INTERFERENCE
To macro or otherfemtos
Femtos typicallyshare macro
spectrum
Unplanned femtodeployment
ALL PART OFQUALCOMMS UltraSON
MOBILITY MANAGEMENT
Need to discover femto(with femto beacon supporting
legacy devices)
Need reliable macro/femtohandovers(e.g. femto beacon ass isted hand-in)
INTERFERENCE MANAGEMENT
Typically
restrictedaccess
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Qualcomms Innovative InterferenceManagementPart of UltraSONENABLING LARGE SCALE DEPLOYMENTS
MacroUser
FemtoUser
Sets optimalFemto coverage:1) Initi al Calibration
2) Range Tuning
ProtectsMacrocell
E.g. Limi t femto userpower
Protects Macro userE.g. tempora rily throttle femto power to
protect active macro user
INITIAL SELF-CALIBRATION
Network listen to select carrier,set femto transmit power etc.
FEMTO RANGE TUNING Fine tune range with handset assistance
Techn ician assisted for Enterprise femtos
FEMTO USER PROTECTION Set appropriate femto noise rise threshold
based on femto location
MACROCELL PROTECTION Limit femto user transmit power
Set appropriate femto noise rise thresholdbased on femto location
GUEST /
NEARBY
MACRO
USER
PROTECTION
Detect active guests/macro users totemporarily throttle femto power
JAMMING
Protects Femto user
JAMMING
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Up Next: Large Scale Enterprise FemtocellDeployments
Typically Multiple Femtos To Cover a Floor
UltraSON enables large scaleenterprise deployments
Requires technician assistedcoverage planning/range tuning Different challenges than residential deployments,
such as larger interference variations
Technician assisted range tun ing helps to setoptimal femto coverage with least macro impact
Inter-femto soft handover ensures
voice quality (or transmit diversity) Frequen t Hard Handovers (HHO) can disrupt voice
calls in an enterprise environment
Soft handover (SHO) reduces HHO rate, or if SHOis not available, use femto transmit diversity
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WiFi Complements Femtocells
LEVERAGING UNLICENSED SPECTRUM
WIFI SUPPORT ON HANDSET AND FEMTOCELL PRODUCTS
Pico / Femto
Pico / Femto
Pico / Femto
Heterogeneous networks(HetNets)With Picocells/Open Femtocells
At Home:Typically RestrictedAccess Femtocell
and WiFi
MacrocellTower
Hot-Spot Offload
WiFi Hot-Spots
LEVERAGING LICENSED SPECTRUMFemtocell
WiFi Hot-Spots
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Now the Product Pitch
Chipsets that enable the creation of low cost femtocellnetworks
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Qualcomm: Industry Leading Femto Platform
Small Office /Home Office
Residential Enterprise
4 Users 8 Users 16 - 32 Users
Chipset Platform
BasebandFSM 9xxx:
UMTS/HSPA+CDMA2000 1X
EV-DO Rev. A/B
RF andPowerFTR8700RTR8605PM8058
Comprehensive, highlyintegrated solution Baseband, RF & power mgmt, integrated GPS
Common UMTS/HSPA+ & EV-DO/1X platform
1GHz CPU based on Snapdragon
Transmit/Receive diversity and 2 x 2 MIMO
WiFi support
Enables very small form factor,low power products
State-of-the-Art UltraSONinterference, mobility anddiscovery management With integrated multiband network listen
Support for pilot beacons and active hand-in
Commercial 3G FSM ProductsLaunched in 2011
4G FSM Products
coming in 2012
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A Low Cost Solution To Increase IndoorCoverage and Capacity
Femtocell
Qualcomm: Industry Leading Femto PlatformComprehensive, highly integrated solution with state of the art UltraSONinterference management
Expands Beyond Hot-Spotto Femto NetworksTo enable dense, large scale residential and enterprise deployments
Improved Voice, Higher Data Rate, Macro OffloadWith existing devices
Requires Innovative Interference ManagementDue to restricted access but also for large scale open access deployments
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Enables New Femto Zone Services
FEMTO ZONE
Leverage location, relationship etc. for new services
Synch with local media/data servers (music, videos, data)
Stream to/from local media servers, screens, printers
Push services to Femto zone, remote control
Additional Enterprise opportunities such as integratedIP-PBX services and desk phone substitution
FEMTO ZONE SERVICES
Access Femto zone remotely
Remotely control mediaservers, appliances
REMOTE ACCESS2
Connect locally to any IPdevice (3G, WiFi, LAN etc)
Offload Femto backhau l
LOCAL IP ACCESS
Internet
Operators
Network
FemtoGateway
RNC/
BSC
Macro Cell
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ExamplesFemto Zone Services
Remote Control PushSynch & StreamLocation Based
Alert family memberswhen a family memberenters the femto zone
Virtual home numbercall all mobile devices inhome zone
Interact with socialmediaupdate presenceand location in formationautomatically whenentering femto zone
Automatic synchronizationbetween mobile device andhome media servers (music,videos, data, etc)
Stream media (music, videosetc.) to/from mobile device
and home entertainmentssystem, screens, etc.
Use mobile device asremote control for themedia servers, TV etc.
Use mobile device forhome controls appliancesand home settings like
temperature and ligh ts forthe connected home
Push content to femtobased on location, contextand customer relationship
Femtocells can utilizeun ique knowledge of femtousage pattern and
subscriber relationsh ip topush personalized services
A business can deployfemtocells and pushlocation basedadvertisement
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Thank You