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Hot Topics in LTE Small Cells Trevor Reynolds – Consulting Engineer October 2013
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Transcript of Hot Topics in LTE Small Cells Trevor Reynolds – Consulting Engineer October 2013
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Hot Topics in LTESmall Cells Trevor Reynolds – Consulting EngineerOctober 2013
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AGENDA• Small Cells: Small Makes a Big Difference• IMS
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A RAPIDLY CHANGING ENVIRONMENTMORE MOBILE BROADBAND USERS MORE USER FRIENDLY DEVICES MORE COMPELLING CONTENT & APPS
Mobile broadband connections to triple from 2011 to 2016
By 2016, 6 out of 10 handsets sold will be smart phones
2011
18.2 B 41.7 B
2015
Apps downloads +129% by 2015
VOICE -> ENTERTAINMENT & SOCIAL NETWORKING
ON THE MOVE -> STATIC/PEDESTRIAN
IS CHANGING COMMUNICATIONS
How do you use your smart phone?
88% 53%76% 64%Entertainment Stay
InformedSocial
NetworkingWatch Videos
Where do you use your smart phone?
78% 50%71% 71%In a Store
In a Coffee Shop
At Work
In a Restaurant
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WIRELESS OPERATORS FACE 2 CRITICAL CHALLENGESCAPACITY AND COST PER GB
More Spectru
m(Hz)
More Spectral Efficiency
(Bits/Sec/Hz)
MoreSpatial
Efficiency(Bits/Sec/Hz/Us
er)
IncreaseCapacity
2x
10x1.5x
SMALL CELLS
RESIDENTIAL ENTERPRISE METRO
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Metro cellcoverage area
Macro cell coverage area
DEDICATED CARRIER
SHARED CARRIER
BOTH OFFLOAD TRAFFIC, BUT DEDICATED CARRIER PROVIDES A HIGHER ECONOMIC RETURN
DEDICATED OR SHARED CARRIER – WHICH ONE TO USE?
Metro cellcoverage area
Outer rim of macro cell coverage area
• Large metro cell coverage area• Higher metro cell placement flexibility• Avoids interference with macro cell• Highest economic return, 70% of traffic is
offloaded
• Smaller metro cell coverage areas• Lower metro cell placement flexibility• Higher macro interference• Lower economic return, 30-35% of traffic is
offloaded• Offers effective capacity & coverage for some use
cases and for operators with low spectrum holdings
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CAPACITY/THROUGHPUT
PUT CAPACITY
IN ITS PLACE -
CLOSER TO USERS•Backhaul costs
•Community acceptance •Customer premises •Multi-vendor Interop/handoffs
•4x-12x higher capacity than macro cell only deployment•Place where needed•Higher end user speed •Adding metro improves cost•Operational advantages•Ownership – faster, easier to service
SMALL CELLS CAN ADD MASSIVE CAPACITY, BUT EVERY SITUATION IS DIFFERENT!
REDUCED COST
ADOPTION BARRIERS
SMALL CELLS PROS/CONS
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LTE TARGETED CAPACITY FOR INDOOR STADIUMSREAL WORLD EXAMPLE: IMPROVING QOE AT SPORTING EVENTS
• Challenge – macro network cannot keep up with capacity demands during sporting events. Provide sports fans with the required QoE.
• Solution – provide dedicated capacity to sport fans with Metro Radio placed within the stadium
Three Metro Radios positioned within stadium in roof based on detailed RF plan
2x2MIMO, 10MHz BW (20MHz capable), 10mW DL power (5W capable)
Used shared carrier deployment• Metro Radios greatly improved QoE
68-100% Uplink Improvement (26Mbps) 85% Downlink Improvement (83Mbps)
SIGNIFICANT USER CAPACITY IMPROVEMENTS ACHIEVED IN SHARED CARRIER
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AGENDA• Small Cells: Small Makes a Big Difference• IMS
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One number servicesSwap live calls across screens
High quality and security
RCS5/RCSeVIDEO COMMUNICATIONS Presence
IP MessagingConverged Messaging
HD VoiceSimultaneous voice and LTE dataFaster call setup and lower latency
VoLTE
CallingConferencingVideo Casting
BUT IT CAN’T STOP THERE…
SERVICE PROVIDERS LEVERAGING VoLTE NOWA NEW CONVERSATION EXPERIENCE…
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IN SUMMARY ….
IMS/VoLTE Is Now Ready – Tier 1 Deployments Beginning• An integrated communications experience• VoLTE, video communications and social messaging for consumers
and Enterprise customers• Millions of VoLTE licenses already sold in the US
Bridging Telecom and Web• Browser based communication will make many devices VoIP/VoLTE
enabled
Small Cells Will Make a Big Impact• Puts capacity where you need it – close to the user• Every deployment is different - Pros/Cons should be weighed
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