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Hot Topics in LTE Small Cells Trevor Reynolds – Consulting Engineer October 2013. AGENDA. Small Cells: Small Makes a Big Difference IMS. A RAPIDLY CHANGING ENVIRONMENT. MORE MOBILE BROADBAND USERS. MORE USER FRIENDLY DEVICES. MORE COMPELLING CONTENT & APPS. Apps downloads +129% by 2015.
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Hot Topics in LTESmall Cells Trevor Reynolds – Consulting EngineerOctober 2013
AGENDA • Small Cells: Small Makes a Big Difference • IMS
A RAPIDLY CHANGING ENVIRONMENT MORE MOBILE BROADBAND USERS MORE USER FRIENDLY DEVICES MORE COMPELLING CONTENT & APPS Apps downloads +129% by 2015 Mobile broadband connections to triple from 2011 to 2016 By 2016, 6 out of 10 handsets sold will be smart phones IS CHANGING COMMUNICATIONS VOICE -> ENTERTAINMENT & SOCIAL NETWORKING ON THE MOVE -> STATIC/PEDESTRIAN 88% 76% 64% 53% 78% 71% 71% 50% 2011 2015 Entertainment Watch Videos Social Networking Stay Informed In a Store In a Restaurant At Work In a Coffee Shop 18.2 B 41.7 B How do you use your smart phone? Where do you use your smart phone?
WIRELESS OPERATORS FACE 2 CRITICAL CHALLENGESCAPACITY AND COST PER GB SMALL CELLS 2x More Spectrum(Hz) RESIDENTIAL ENTERPRISE METRO MoreSpatialEfficiency(Bits/Sec/Hz/User) IncreaseCapacity More Spectral Efficiency(Bits/Sec/Hz) 1.5x 10x
DEDICATED OR SHARED CARRIER – WHICH ONE TO USE? DEDICATED CARRIER SHARED CARRIER Macro cell coverage area Metro 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 Outer rim of macro cell coverage area Metro cell coverage area BOTH OFFLOAD TRAFFIC, BUT DEDICATED CARRIER PROVIDES A HIGHER ECONOMIC RETURN
SMALL CELLS PROS/CONS • 4x-12x higher capacity than macro cell only deployment • Place where needed • Higher end user speed CAPACITY/THROUGHPUT PUT CAPACITY IN ITS PLACE - CLOSER TO USERS • Adding metro improves cost • Operational advantages • Ownership – faster, easier to service REDUCED COST • Backhaul costs • Community acceptance • Customer premises • Multi-vendor Interop/handoffs ADOPTION BARRIERS SMALL CELLS CAN ADD MASSIVE CAPACITY, BUT EVERY SITUATION IS DIFFERENT!
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
AGENDA • Small Cells: Small Makes a Big Difference • IMS
SERVICE PROVIDERS LEVERAGING VoLTE NOW A NEW CONVERSATION EXPERIENCE… VoLTE HD Voice Simultaneous voice and LTE data Faster call setup and lower latency RCS5/RCSe VIDEO COMMUNICATIONS Presence IP Messaging Converged Messaging Calling Conferencing Video Casting One number services Swap live calls across screens High quality and security BUT IT CAN’T STOP THERE…
IN SUMMARY …. IMS/VoLTEIs Now Ready – Tier 1 Deployments Beginning • An integrated communications experience • VoLTE, video communications and social messaging for consumersand 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