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Building a Sustainable HetNet

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Presentation by Michael Wu, Member of TELUS team, Technology Strategy & Operations in LTE World Summit, June 25th, 2013

Presentation by Michael Wu, Member of TELUS team, Technology Strategy & Operations in LTE World Summit, June 25th, 2013

Published in: Technology, Business

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  • 1. Building a Sustainable HetNet Michael Wu Member of TELUS team Technology Strategy & Operations June 25th, 2013
  • 2. 2 Introduction 7.7Million 1 Wireless Subs 3.4Million 1.34Million $11Billion $5.9Billion 2 3 4 Wireline Subs Internet subs Annual Revenue Wireless Revenue 5 $60 CAD Wireless ARPU6 35Million Population
  • 3. 3 Introduction – Contd. Our Wireless Networks  CDMA network supports EV-DO  HSPA+ (21Mbps) network covering 99% Canadian population  Dual-Cell HSPA (42Mbps) in urban cities  LTE (75Mbps) covering over 70% of Canadians  1st truly MOCN network in global market  Introduced HSPA Micro cell in 2011  Introduced LTE Micro cell in 2012
  • 4. 4 Our Challenges 70%* 1 Data Growth 24%** 2 Smartphone Penetration 94% 75% Global Average TELUS *: Source: Cisco, Global Mobile Data Traffic Forecast Update, 2012–2017 **: Source: eMarketer, 2012  Limited spectrum  Fast data growth  Lack of site density  Sophisticated device & apps
  • 5. 5 How TELUS will address these challenges TELUS embraces multiple strategies to meet data growth while maintaining attractive ROI!
  • 6. 6 Building a sustainable Hetnet This presentation summarizes important experiences of TELUS small cell development. We focus on two elements: HSPA Microcells LTE Microcells
  • 7. 7 HSPA Micro Cell – Performance & Gains Macro traffic Micro traffic Coverage LOS First 3 building floors 6+ micros  1 macro Performance AVG UL throughput: 1.3Mbps CDR: 0.37% CSSR: 99.78% Macro Site Off-loading 40% Erlang traffic 50% PS traffic Macro Site Micro Site
  • 8. 8 HSPA Micro Cell – Challenges & Issues 67% civil work & labour Cost > 1/5 of macro site while 5-10 microcells required per macro site Acquisition consumes the most time Attachment annual fees threaten business case Alternative backhaul solutions needed Bulk agreements with municipalities needed
  • 9. 9 LTE Micro Cell – Performance & Gains Coverage Mixed environment 10+ micros -> 7 macros Performance AVG UL throughput gain: 80% -100% CDR: 0.2% CSFB CSSR: 99.86% Macro Site Off-loading 30% PS Traffic 3 sites offload 15% PS Traffic
  • 10. 10 LTE Micro Cell – Implementation Challenges BC Place Granville Microcells Waterfront Microcells  2m geodata & ray- tracingmodel  ~200 meter spacing  Intersectionspreferred  AC powerdelivery  Fibredelivery  Pole access Constraints Preparation
  • 11. 11 LTE Micro Cell Design Scalable Spectrum Sharing Micro: Static RB  Site only allowed to select first x% RB  Parameter x% configurable for capacity maximization at each microcell Macro: Frequency- Selective Scheduling (FSS)  Site will schedule on cleanest RBs  Macro and micro completely separate until high traffic reached RB1 RB2 RB3 RB4 RB1 RB2 RB3 RB4 F1=10MHZ F1=10MHZ Driving co-channel underlay innovation!
  • 12. 12 Lessons Learned & Opportunities  Cheaper backhaul – another key success factor  Feature evolution will drive more deployment flexibility  Right location is the off-load king!  Good antenna selection improve performance  Require highly integrated solution  Require enhanced SON capabilities

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