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C-RAN: the Next Big Thing after LTE

C-RAN: the Next Big Thing after LTE. China Mobile Research Institute. Agenda. Challenges in mobile internet era. China mobile’s solution: C-RAN. C-RAN progress. Proposals for collaboration with Agilent . Challenges in Mobile Internet Era.

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C-RAN: the Next Big Thing after LTE

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  1. C-RAN: the Next Big Thing after LTE China Mobile Research Institute

  2. Agenda • Challenges in mobile internet era China mobile’s solution: C-RAN C-RAN progress Proposals for collaboration with Agilent

  3. Challenges in Mobile Internet Era Fast increasing data traffic but slow capacity growth 1 Exabyte = 1018 Byte Gap Mobile data traffic will increase by 26times Mobile network capacity will only increase by 10times *Source: Cisco VNI Mobile, 2011

  4. Challenges in Mobile Internet Era 2G 3G LTE Construction Cost ! Inter-cell Interference !

  5. Challenges in Mobile Internet Era BS cell site is the major source of power consumption. *Source: Base on China Mobile survey on commercial networks

  6. Agenda • Challenges in mobile internet era China mobile’s solution: C-RAN C-RAN progress Proposals for collaboration with Agilent

  7. RRU RRU RRU RRU RRU RRU RRU C-RAN: Road towards green radio access network Virtual BS Pool Centralized baseband pool real time Cloud computing Optical Network Collaborative radio Clean system target

  8. C-RAN——Centralized Baseband Pool Traditional macro base-stations Distributed base-stations C-RAN Centralized baseband pool

  9. C-RAN——Collaborative Radio interference signal signal interference signal signal Separately processing Joint-processing

  10. C-RAN——Real-time Cloud Computing App Service TD-LTE TD-SCDMA GSM TD-LTE TD-SCDMA GSM Software Defined Radio based on Virtualized Cloud Platform Traditional baseband equipments

  11. C-RAN——Clean System Target Power consumption reduced by at most 71% Construction cost per site reduced by 1/3 *Source: Base on China Mobile field trial surveys

  12. Agenda • Challenges in mobile internet era China mobile’s solution: C-RAN C-RAN progress Proposals for collaboration with Agilent

  13. C-RAN Roadmap We are here Long Term: Address the real-time cloud challenge Virtual BTS on real-time Cloud C-RAN Research Data traffic analysis BBU pool research Commercial product development Mid-Term: Address the SDR and Collaborative Radio challenge Drive CoMP research and field trial, pre-commercial product Multi-mode and Collaborative Radio Near Term: Address the fiber resource and management challenge Centralization Deployment Expend C-RAN to 2G/3G/4G networks 2010 2011 2012 2015 2014 2013

  14. Prototype Development Multi-standard GPP prototype Large-scale Baseband pool

  15. C-RAN Field Trial Jilin GSM Beijing G/T/L (on going) C-RAN Trials in China Baoding GSM Changsha GSM Zhaotong GSM Guangzhou G/T/L (on going) Dongguan TD-SCDMA Zhuhai TD-SCDMA

  16. International Collaboration

  17. Agenda • Challenges in mobile internet era China mobile’s solution: C-RAN C-RAN progress Proposals for collaboration with Agilent

  18. Collaboration with Agilent System Measurement SDR Research • Physical layer acceleration • L2/L3 signal scheduling • Real-time operating system • Baseband verification • RF specification testing • Channel simulation

  19. C-RAN PoC Test (with GSM/TD-SCDMA/TD-LTE) • Uplink signal sensitivity • EVM/Freq. offset/ phase noise of downlink signal • Consistency of multi-port signals • Beam-forming test • CPRI signal test, e.g. time synchronization • channel simulation • …… Test Requirements

  20. Summary • C-RANis to address the challenges in the mobile internet era. • Agilent could play an important role in C-RAN test. Collaboration makes win-win! Thank you!

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