Spectrum as a shared resource Light-licensing models for 3.5 GHz band open new ways to deploy and operate networks

Transcription

1 1 Senza Fili 2017 Spectrum as a shared resource Light-licensing models for 3.5 GHz band open new ways to deploy and operate networks Monica Paolini, Senza Fili

2 CBRS: the cheat sheet 3.5 GHz band TDD-LTE Up to 150 MHz (depends on location) Multiple users coordinate use of spectrum Dynamic spectrum allocation Not unlicensed: Protected access Opportunistic (not guaranteed) use of spectrum Industry groups: WinnForum, CBRS Alliance Neutral host as deployment model Challenges: coexistence, devices Questions: role of MNOs, MSOs Venue owners have large role in spectrum use Excellent for indoor small cells January 26, 2017 CBRS is a bold experiment in regulation, with implications beyond 3.5 GHz and beyond US 2 Senza Fili 2017

3 January 26, 2017 Shared spectrum innovation (and disruption) from learning in licensed and unlicensed spectrum 3 Senza Fili 2017 Licensed spectrum Unlicensed spectrum Shared spectrum How to increase spectrum utilization: technology, but also regulation and business models

4 January 26, 2017 Unlicensed spectrum has been a huge success story in spectrum utilization 4 Senza Fili 2017 Source: Cisco VNI Global IP Traffic Forecast, even though spectral efficiency for unlicensed technologies is lower than for licensed ones

5 January 26, Senza Fili GHz Band SOME REGULATORY ASPECTS Colby Harper, Pathfinder Wireless

6 U.S. 3.5 GHz Citizens Broadband Radio Service (CBRS) Spectrum Management Macro Trends & Bodies The new U.S. 3.5 GHz Citizens Broadband Radio Service (CBRS) Band 150 MHz, 3 Access Tiers, Spectrum Sharing, & Hybrid Licensing Functional Architecture Timeline Overview January Pathfinder Wireless 2017

7 Spectrum Management Regulatory Macro Trends Across the globe, the overall historical national spectrum regulatory authority trend is to open up what was once locked down and static. Rigid > Flexible uses, radio technologies, and allocations Centralized to > Increasingly decentralized systems Homogeneity to > Heterogeneity in frequency, geography, and time Moves the overall system from static hierarchical complexity to a dynamic complexity January Pathfinder Wireless 2017

8 New bands, new hybrid licensing approaches 4G/5G 3.5 GHz CBRS, 5G 28GHz and higher Evolving licensing approaches 3.5 GHz CBRS Courtesy: Qualcomm January Pathfinder Wireless 2017

9 Who makes the rules? Spectrum Regulatory Bodies International: ITU-R NA: Treaty US: FCC / NTIA January Pathfinder Wireless 2017

10 Spectrum Regulatory/Management Bodies? (!) US: FCC / NTIA and ALSO, for 3.5GHz Band, the WInnForum s Spectrum Sharing Committee January Pathfinder Wireless 2017

11 Spectrum Regulatory/Management Bodies? (!) State of WA Seahawks Stadium Owners Bellevue Square Mall City of Bellevue Marriott January Pathfinder Wireless 2017

12 Spectrum Regulatory/Management Bodies? (!) Marriott This guy & his phone & his car City of Bellevue January Pathfinder Wireless 2017

13 U.S. 3.5GHz Citizens Broadband Radio Service (CBRS) Band Novel 3-tier spectrum sharing of 150 MHz (!) from MHz, in a hybrid licensing regime FCC s new Part 96 rules created this new spectrum band authorizing advanced spectrum sharing among commercial and federal users Allows both Priority Access Licensees (PALs) and General Authorized Access (GAA) users to share dynamically with incumbent users. January Pathfinder Wireless 2017

14 CBRS: 3 Access Tiers Courtesy: Ruckus Wireless January Pathfinder Wireless 2017

15 CBRS: 3 Access Tiers 1 st Tier: Incumbent primary users, primarily government: Dynamic priority access over all secondary users (only during operating times) Interference protection from PAL & GAA 100 MHz from MHz with perpetual Federal & Fixed Satellite Service incumbents 50 MHz from MHz with Part 90 Wireless Broadband Service incumbents, who must transition to CBRS Part 96 and 2 levels of secondary users: 2 nd Tier: PAL/Primary Access Licensees Priority access over 3 rd tier GAA for licensed geographic area & channel(s) to be acquired at auction Licensed area is census tract, w/ 3+3 year initial license term; 3 years thereafter ~74,000 census tracts in US Interference protection from GAA No more than 70 of 150 MHz 3 rd Tier: GAA/General Authorized Access Licensed-by-rule or Lightly-licensed. Somewhat like Part 15, though radio base station operations must be authorized initially and on-going by a CBRS Spectrum Access System (SAS) No presumption of Interference protection January Pathfinder Wireless 2017

16 What s a Spectrum Access System (SAS)? A CBRS SAS controls channels/frequency resources in same geographic area and time There are currently 7 SAS Administrators conditionally approved by the FCC Collectively, the SAS s are cohabiting coarse-grained spectrum managers, allocating spectrum resources to fine grained controllers like LTE & 5G Systems & their enodeb s that otherwise are not required to be aware of each other January Pathfinder Wireless 2017

17 CBRS: SAS Functional Architecture EUD: End User Device (A device authorized and controlled by an authorized CBSD) Category B CBSD: Higher power, outdoor only, certified installer only PAL Licensed &/OR GAA Licensed Indoor &/OR Outdoor UE UE EUD Category A CBSD: Lower power, indoor/outdoor, self-install allowed CBSD s & EUD s mostly technology agnostic. Can be LTE LAA, MulteFire, 5G, & Other TBD GREEN = UNOFFICIAL COMMENTARY January Pathfinder Wireless 2017

18 CBRS: Opening up coastal metro s via ESC use <<< Static Exclusion Zones were revised, allowing 3.5GHz band use in far more places, thanks to FCC, NTIA, & DOD collaboration. When an ESC (Environmental Sensing Capability) is approved and enabled, Exclusion Zones will be made available for SAS-coordinated dynamic sharing with Tier 1 incumbents. This opens up the large coastal metro markets. January Pathfinder Wireless 2017

19 CBRS Timeline Overview PCAST Report s 3-tier spectrum sharing recommendation (July 2012) WInnForum Spectrum Sharing Committee Charter (February 2015) FCC Conditional Approval of 7 SAS Administrators (December 2016) TODAY Continued Trials (2017) FCC PAL Auction (TBD) FCC CBRS Part 96 NPRM s (December 2012 & April 2014) FCC CBRS Part 96 Rules (April 2015) SSC Testing & Cert Spec (~May 2017) FCC ESC Operators approval (TBD) Commercial Trials & Launches (TBD ~2017/18) The WInnForum Spectrum Sharing Committee is the FCC-approved multi-stakeholder group chartered with developing the solutions and technical standards for this novel three-tier framework January Pathfinder Wireless 2017

20 Advanced LTE & 5G telecommunications consulting Contact: Colby Harper January Pathfinder Wireless 2017

21 January 26, 2017 CBRS and shared spectrum continue the trend towards integration of licensed and unlicensed access 21 Senza Fili G will expand flexible spectrum use, to shared and unlicensed models

22 January 26, 2017 CBRS unleashes 150 MHz of shared spectrum: opportunistic use, but still very valuable 22 Senza Fili 2017 Source: Qualcomm Technologies, Inc. Limited propagation of 3.5 GHz becomes an advantage in dense networks

23 January 26, 2017 Coordinated access from multiple users requires a new network topology 23 Senza Fili 2017 SAS = Spectrum allocation server ESC = Environmental Sensing Capability SAS applicants: Amdocs Comsearch CTIA Federated Wireless Google Keybridge Sony Source: Federated Wireless Effective coordination is crucial to success of CBRS open questions on what best approach is

24 January 26, Senza Fili 2017 Venue owners get stronger role with CBRS Service providers have to work with venue owners to benefit from CBRS Venue owners have to work with service providers to benefit from CBRS

25 January 26, Senza Fili 2017 CBRS is an excellent opportunity for indoor densification No interference with macro network Up to 150 MHz of spectrum High spectrum reuse Neutral host model well suited to combine Venue owner desire to have max coverage, multiple service providers, min equipment Service provider desire to have indoor coverage, with min cost Opportunity to address mid-sized venues Venue owners may pay for deployment Bigger control on network (less for service provider) Source: U.S. Energy Information Administration, Office of Energy Consumption and Efficiency Statistics but the opportunity can only be realized in cooperation with licensed LTE and Wi-Fi

26 January 26, Senza Fili 2017 CBRS Alliance members Source: CBRS Alliance A broad ecosystem is emerging but what about the enterprise / venue owners?

27 January 26, Senza Fili 2017 Who will be the service providers for CBRS access? Mobile operators Cable operators Venue owners MVNOs Municipalities Neutral hosts OTTs Others? Multiple options: much of CBRS innovation may come from service providers

28 January 26, 2017 Looking ahead: shared spectrum regime fits new network topologies with coordinated access 28 Senza Fili 2017 China Mobile, Chih-Lin: No-more-cells user-centric model DOCOMO: Phantom cells Source: China Mobile Source: DOCOMO New topologies integrate a licensed anchor to other bands for integrated, opportunistic access

29 January 26, Senza Fili 2017 and back to small cells, the topic of the day Recent report on densification Analyst report on RAN evolution towards massively densified networks: drivers, technologies, market requirements 13 in-depth video/transcribed interviews with report sponsors, operators and enterprises Download the report on RCR Wireless News and Senza Fili website and sent to webinar participants

30 January 26, Senza Fili 2017 Senza Fili provides advisory support on wireless data technologies and services. At Senza Fili we have in depth expertise in financial modelling, market forecasts and research, white paper preparation, business plan support, RFP preparation and management, due diligence, and training. Our client base is international and spans the entire value chain: clients include wireline, fixed wireless, and mobile operators, enterprises and other vertical players, vendors, system integrators, investors, regulators, and industry associations. We provide a bridge between technologies and services, helping our clients assess established and emerging technologies, leverage these technologies to support new or existing services, and build solid, profitable business models. Independent advice, a strong quantitative orientation, and an international perspective are the hallmarks of our work. For additional information, visit or contact us at info@senzafiliconsulting.com or Monica Paolini, PhD, is the founder and president of Senza Fili. She is an expert in wireless technologies and has helped clients worldwide to understand technology and customer requirements, evaluate business plan opportunities, market their services and products, and estimate the market size and revenue opportunity of new and established wireless technologies. She has frequently been invited to give presentations at conferences and has written several reports and articles on wireless broadband technologies. She has a PhD in cognitive science from the University of California, San Diego (US), an MBA from the University of Oxford (UK), and a BA/MA in philosophy from the University of Bologna (Italy). You can contact Monica at monica.paolini@senzafiliconsulting.com.