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Return Of Small Cells: An Evolution Path for HetNets
Renuka BhaleraoProduct Strategy and Management, Radisys
February 2016
2Radisys Corporation Confidential
Radisys at a Glance
PROFESSIONALSERVICES
Accelerating Customer Deployments
EMBEDDED PRODUCTS
40/100 G Carrier Grade ATCA Platforms
Network Appliances & ComE
Perfect Fit Solutions
SMALL CELLTrillium Products
3G & LTE Small Cells
Intelligent Gateways
Cloud RAN
MEDIA PROCESSING
Voice over LTE (VoLTE/VoWiFi)
Audio and Video Transcoding
OTT/Value Added Services
TRAFFIC DISTRIBUTION
Intelligent Traffic Steering and Forwarding
DPI Acceleration
Dynamic Service Function Chaining
Cloud IP Communications
Mobility Next Gen Platforms
3Radisys Corporation Confidential
Radisys LTE Market Leadership
AWARDS
Cap
acity
Coverage
3G/LTEDesign Wins
80+ C-RAN
4Radisys Corporation Confidential
Radisys Small Cell Access Point Solutions
Si, Platform, Radio
Physical Layer (PHY)
Integrated Small CellAccess Point Solution
Protocols
ApplicationRadio Resource Management (RRM)
Self Organizing Network (SON) O&
AM
(TR69 / 196)
SiliconPartners
LTE Small CellAccess Points
Deployment Proven Solutions
TOTALeNodeB Femtotality
5Radisys Corporation Confidential
Small Cell Deployment Stages
Coverage • Initial• Public access indoor
6Radisys Corporation Confidential
Age of HetNets
Capacity
Dense UrbanUrbanSuburbanRural
Broadband Proliferation HighLow
GSM / GPRS / EDGE Networks, 900MHz / 1800MHz
3G / HSPA+ Networks, 2.1GHz
Multi-Mode
(LTE-TDD 2.6GHz /
3G 2.1GHz)
LTE-TDD FDD
LTE-TDD/FDD LTE-
TDD /FDD
Coverage
Nationwide Network
Demand-based
Capacity & Coverage
LTE Networks, 700MHz-2.6GHz/3.5 GHz
Targeted Deployments
7Radisys Corporation Confidential
Small Cell Deployment Stages
Coverage • Initial• Public access indoor
Capacity• Expansion• Enterprise/Public access indoor/outdoor• Network densification
8Radisys Corporation Confidential
Multi-Mode
3G + LTE + Wi-Fi• Primarily LTE + Wi-Fi today• 3G + LTE adds a dual-mode coverage
Advanced Functions for Convergence• Aggregation, policy, optimization• Intelligent bandwidth management
3G
WiFi
LTE
Bandwidth Management Client
Bandwidth Management Functions & Policy
(in service provider network)
Context-Aware Policy Enforcement(Location, battery life, speed,
application requirements, cost, etc)
Flow Segregation &
Mobility
IP layer
Aggregation & Protocol
QoS and Analytics
PolicyEngine
Policy Control
9Radisys Corporation Confidential
Unlimited Potential For Unlicensed LTE-LAA, LWA, MulteFire
Untapped resource• ~500 MHz of spectrum• Shared use concept• Suitable for local coverage
Well suited for small cells• Low power, higher range scenarios • Built on carrier aggregation
Broad global adoption• Trials ongoing in North America• Japan, China, Korea, Europe…• Integrated into 3GPP standards
20 MHz
LTE-U/ Pre-LAA PoC
LTE-LAA as per 3GPP Rel-13
LTE On LTE OnLTE Off
Duty Cycle
Period
Duty Cycle:% of cycle LTE is
active
timeWi-Fi access gaps
when LTE is off
10Radisys Corporation Confidential
Small Cell Deployment Stages
Coverage • Initial• Public access indoor
Capacity• Expansion• Enterprise/Public access indoor/outdoor• Network densification
Maturity• Niche applications• Virtualization and cloud• IoT and M2M• 5G
11Radisys Corporation Confidential
Key Adjacent Markets
Private Networks• A&D, Public Safety, Critical Infrastructure …• End-to-End Network
Monitoring and Surveillance • Air Interface (i.e. IMSI Catching) & Spoofing• Network interface sniffing
Test & Measurement• LTE & LTE-A growth• In lab test infrastructure
12Radisys Corporation Confidential
Network In A Box (NiB) Solutions
3G and LTE for adjacent markets• ID catchers, Search and rescue solutions, Tactical systems • Complete ‘Network in a box’ for 3G and 4G
Caters to application specific functions • Use cases for ID, monitoring, intercept• Includes light core function• Leverages LTE & 3G L2/L3
Robust communications for A&D, Public Safety and other niche markets
UE eNodeBEPC
13Radisys Corporation Confidential
Flash Forward to 2016
Large operators continue to unveil their LTE and LTE-Advanced plans
New devices defining mobile broadband success = New opportunities
Operators looking forward to SDN/NFV
*Infonetics Research
CY09 CY10 CY11 CY12 CY13 CY14 CY15 CY16 CY17 CY180
50000000100000000150000000200000000250000000300000000350000000400000000 Worldwide Embedded Mobile Broadband
Device Units
Uni
ts (M
illio
ns)
14Radisys Corporation Confidential
Network Transformation
5G
4G/LTE
3G
2.5G
2G
2020
2015
2010
2005
2000
1999
All Connected Network with data speeds in Gbps range
Coverage and Capacity
15Radisys Corporation Confidential
Small Cell Evolution
Remote Radio Head (RRH) andDistributed Antenna Systems (DAS)
Cloud Radio Access Network(C-RAN)
16Radisys Corporation Confidential
Why Change The RAN?
HetNet Deployments are picking up but not without challenges
Cost and complexity of network planning
When it comes to capacity management, redirection alone is not sufficient
C-RAN promises improved network efficiency, with lowered TCO, to improve monetization of mobile broadband
17Radisys Corporation Confidential
Virtualization of Small Cells
C-RAN & Small
Cells
Improved coordination
Resource Pooling
Cost and Energy
Optimization
18Radisys Corporation Confidential
Radisys Solutions for C-RAN and NFVI
Virtual Computing
Virtual Network
Virtual storage
Virtualization Layer
Hardware Resources
NFVI
VI-Ha
ComputingHardware
NetworkHardware
StorageHardware
EMS1 EMS3EMS2
LTE L1VNF
LTE L3RRM / SONVNF
LTE L2VNF
HW Platforms • Optimized for
high performance Intel Multi-Core NFVI
• Full LTE FDD and TDD eNodeB SW Solution• Designed for SON and C-RAN flexibility
C-RAN Virtualization Functions
19Radisys Corporation Confidential
What Next? 5G: The Network Evolution
• Unified• Optimized• Intelligent• Ultra Dense• Ultra Reliable Network
Better Network efficiencyHigher Data Speeds
~GigabitsLow latency (<1 ms)High Scalability 1000x
capacity
A massive upgrade over LTE/LTE-AdvancedEnhanced Mobile BroadbandMachine to Machine Comm IoT
20Radisys Corporation Confidential
5G: Big Opportunity For Small Cells
Densification
Virtualization
5G ready
• IoT • 3.5GHz initiative• 5G trials in 24 GHz
• Capacity, coverage, data speeds, VoLTE• HetNet Enabler• SON• LTE-LAA
• C-RAN
21Radisys Corporation Confidential
Small Cells Adding Value
IoT and M2M
• Low power, short range connectivity solutions
• LTE-M support in SW as a back bone
• End-to-end compatibility of LTE SW enabling M2M
Mobile Edge Computing
• Edge applications • Location/context
awareness• Real-time service
optimization
Cloud-Based Network
• High scalability for the massive signaling traffic
• Centralized processing
• Virtualization
Virtual Reality Wearables eHealthMission Critical Apps AutomotiveUbiquitous Connectivity: Billions of things connected to wireless IP network
22Radisys Corporation Confidential
Life Of A Small Cell
Shared spectrum concept
(LAA, LWA, shared spectrum
applications with WiFi and Bluetooth)
Virtualization of SW functions,
e.g. C-RAN, Cloud based EPC
and OAM
Support for LTE-M, MTC and other IoT
functions
SW baseline to enable Mobile
Edge Computing (MEC)
• Invented as a coverage improvement tool
• Morphed into much more
23Radisys Corporation Confidential
Final Thoughts
Mobile devices are driving the wireless network evolution
The HetNet shows a way to solve capacity and coverage issues
Small Cells are established to play a key role in the evolving network architecture
CellEngine Software
Your Trusted Partner On Path To 5G
24Radisys Corporation Confidential
MP
TD SC EP PS
25Radisys Corporation Confidential
LTE-Advanced A Tiered Roll Out : 2014 - 2017
Carrier Aggregation
LTE-u/LAA
eICIC and SON
eMBMS, CoMP
Enhanced MIMO / Relay
2015
2016
2017
2018
Interference Mitigation
SpectrumConstraints
Data Throughput
Panacea
Aggregation of multiple carrier frequencies • Data throughput -> 100 MHz BW
Techniques for enhanced coordination with WiFi• LTE-LAA, LWA, Spectrum sharing
techniques
Interference mitigation Boosting Cell Edge Performance Backhaul issues -> Relay nodes Capacity addition -> HetNet,
CRAN
26Radisys Corporation Confidential
C-RAN: Architecture Possibilities
Scenario #1• All functions centralized
Scenario #2• All functions centralized except PHY
Scenario #3• All functions centralized except
scheduling and PHY• BBU, Time critical L2 co-located
Scenario #4• Only L3 functions centralized • L2 and PHY distributed• BBU, L2 co-located
27Radisys Corporation Confidential
Evolution of RAN
Small Cells
• Coverage • Spectrum
utilization
HetNet• Capacity
addition• Demand based
DAS • Local C-RAN• Multi-operator
C-RAN • Scalability• Virtualization
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