The Vault

Spectrum Sharing & Dynamic Spectrum Access
Presentation / Mar 2015 / 5G, DSM, Spectrum, LAA-LTE, MWC

As the initial 5G requirements highlight the need for spectrum, industry and governments are actively promoting spectrum sharing. Learn more about sharing in licensed, unlicensed and government controlled spectrum.

1? 2015 InterDigital, Inc. All Rights Reserved. Spectrum Sharing & Dynamic Spectrum Access Mobile World Congress 2015 2 5G: the evolution to the smarter living network ? 2015 InterDigital, Inc. All Rights Reserved. Wave 1 (Voice) Wave 2 (Visual) 5G:The Living Network New services, new business models Glory days of GSM Integrated telephony applications IMS promises Walled garden worries! Rise of the OTT A new status quo Rise of the mobile internet The video experience The living experience 3 Initial 5G Requirements Highlight Need for Spectrum ? 2015 InterDigital, Inc. All Rights Reserved. Sharing in Licensed, Unlicensed, & Government Controlled Spectrum Cellular Auctions of cleared spectrum & exclusive use by winners Traditional Licensed Model Wi-Fi Sharing via standards & good behavior Traditional Unlicensed Model Public Safety, National Defense, ? Exclusive rights to frequency bands, often with very light use Traditional Government Model 100 Mbps to 1 Gbps 10 to 50 Gbps 1 to 10 TBps/Km2 1 ms 5 to 15 times 4G 50 to 100 times 4G User experienced data rate Peak data rate Area traffic capacity Latency Spectral efficiency Energy efficiency 4 Industry and Governments Actively Promoting Spectrum Sharing ? 2015 InterDigital, Inc. All Rights Reserved. 5 Spectrum Sharing: Deeper Dives ? 2015 InterDigital, Inc. All Rights Reserved. Unique Regulations & Coexistence Requirements InterDigital?s DSM Platform & Field Tests TV White Space (TVWS) Authorized / Licensed Shared Access (ASA/LSA) & Citizens Broadband Radio Service (CBRS) Licensed Assisted Access LAA - LTE 6 Spectrum Sharing: Deeper Dives ? 2015 InterDigital, Inc. All Rights Reserved. Unique Regulations & Coexistence Requirements InterDigital?s DSM Platform & Field Tests TV White Space (TVWS) Authorized /Licensed Shared Access (ASA/LSA) & Citizens Broadband Radio Service (CBRS) Licensed Assisted Access LAA - LTE No DFS U-NII-1 (100 MHz) 50 mW Indoor Only 7 Licensed Assisted Access: LAA-LTE 100?s of MHz of unlicensed spectrum are a tempting target But, coexistence with Wi-Fi raises questions about availability and Quality of Service ? 2015 InterDigital, Inc. All Rights Reserved. 5.150GHz DFS U-NII-2A (100 MHz) 250 mW Part 15.247 Rules (125 MHz) DFS U-NII-2C (255 MHz) 250 mW No DFS U-NII-3 (100 MHz) 1 mW Proposed U-NII-2A (120 MHz) No Technical Rules 25 M Hz Proposed U-NII-4 (75 MHz) No Technical Rules US 5 GHz Unlicensed Spectrum 5.250GHz 5.350GHz 5.470GHz 5.725GHz 5.850GHz 5.925GHz 200 MHz 75 MHz380 MHz120 MHz 88 A Small Cell Solution Anchor an LTE connection in a licensed band - Guaranteed QoS Opportunistically aggregate with a downlink supplemental channel in the unlicensed band - Potentially huge capacity increment ? 2015 InterDigital, Inc. All Rights Reserved. LAA-LTE Aggregating Licensed and Unlicensed Channels LTE Anchored in Licensed Band Supplemental Channel in 5 GHz Band 9 LTE Coexistence with Wi-Fi Wi-Fi stations and access points already pose significant interference to each other due to the CSMA MAC LTE, with properly designed coexistence gaps (CG) and/or listen before-talk (LBT), can do as well or better in managing interference ? 2015 InterDigital, Inc. All Rights Reserved. DL CG DL CG TON TOFF CPP HeNB transmits HeNB Silent (no Tx) LTE Transmission pattern Wi-Fi Transmission Pattern (long packet, defers to other SU) Wi-Fi Transmission Pattern (short packet, defers to other SU) Wi-Fi interfers with LTE Wi-Fi interfers with LTE Wi-Fi Transmission Pattern (short packet, does not defer to other SU) Wi-Fi interfers with LTE A) B) C) D) 10 Spectrum Sharing: Deeper Dives ? 2015 InterDigital, Inc. All Rights Reserved. Unique Regulations & Coexistence Requirements InterDigital?s DSM Platform & Field Tests TV White Space (TVWS) Authorized / Licensed Shared Access (ASA/LSA) & Citizens Broadband Radio Service (CBRS) Licensed Assisted Access LAA - LTE 11 Authorized Shared Access (ASA) Licensed Shared Access (LSA) Large blocks of spectrum that cannot be cleared, but are frequently unused, can provide 100?s of MHz of Bandwidth to alleviate the rapidly growing demand ? 2015 InterDigital, Inc. All Rights Reserved. Frequency Band Amount of Spectrum Primary Part of the World Notes 3550 to 3650 MHz 100 MHz USA Incubent: Naval RadarShared per 3-tier model proposed by FCC 3650 to 3700 MHz 50 MHz USA Incumbent: Fixed Satellite SystemsShared per 3-tier model proposed by FCC 2300 to 2400 GHz 100 MHz Europe Incumbent: Military Satellite Telemetry Shared per LSA 2-tier model Already used widely as 3GPP Band 40 12 Sharing Federal Spectrum FCC 3.5 GHz NPRM 3 Tier Model Provide protection of the incumbent, reliable operation for Priority Access Licensees (PAL) and opportunistic access for General Authorized Access (GAA) users ? 2015 InterDigital, Inc. All Rights Reserved. Citizens Broadband Radio Service (CBRS) Macro Cell Operator (PAL, Tier 2) Small Cell Operator (PAL, Tier 2) Wi-Fi User (GAA, Tier 3) Constrained Access User DoD & Public Safety (Incumbents, Tier 1) Spectrum Access System (SAS) Controller SAS/Interface/Auction/Authorization Spectrum Manager Incentives & Billing Spectrum Usage & Availability Policy 13 Spectrum Sharing: Deeper Dives ? 2015 InterDigital, Inc. All Rights Reserved. Unique Regulations & Coexistence Requirements InterDigital?s DSM Platform & Field Tests TV White Space (TVWS) Authorized /Licensed Shared Access (ASA/LSA) & Citizens Broadband Radio Service (CBRS) Licensed Assisted Access LAA - LTE 14 TVWS Technology ? 2015 InterDigital, Inc. All Rights Reserved. ? Share unused TV channels ? A location-indexed database identifies available channels ? Comply with regulations regarding power, bandwidth, out-of-band emissions, ? US 470 to 698 MHz 6 MHz wide channels UK 470 to 790 MHz 8 MHz wide channels Network Configuration & Control 15 Plenty of TVWS Where Needed & Tools to Use It Expected to be even much better in under-developed countries ? 2015 InterDigital, Inc. All Rights Reserved. An estimate of the number of white-space channels allowed by the FCC?s Nov 4th, 2008 ruling accounting for both co-channel and adjacent-channel protection. MHz of TVWS in The United States From: K.Harrison, S. Mubaraq Mishra, and Anant Sahai, ?How much white-space capacity is there?,? Dyspan 2010. 16 Spectrum Sharing: Deeper Dives ? 2015 InterDigital, Inc. All Rights Reserved. Unique Regulations & Coexistence Requirements InterDigital?s DSM Platform & Field Tests TV White Space (TVWS) Authorized /Licensed Shared Access (ASA/LSA) & Citizens Broadband Radio Service (CBRS) Licensed Assisted Access LAA - LTE 1717? 2015 InterDigital, Inc. All Rights Reserved. Database Access Spectrum Sensing Channel Allocation Co-existence Management Switch/Vacate Channel Primary User Occupancy Secondary User InterferenceChannel List Registered Primary Users Listen Before Talk Coexistence Gaps Aggregation efficiently combines channels wherever they are Non-contiguous Channel Aggregation & Intelligence to Manage It Allocate Channel, Aggregate Channels CHANNELS Channel occupied by Primary User High interference from Secondary Users Channel Available for allocation Non-Contiguous Channel Aggregation & Intelligence to Manage It ? Carrier Aggregation - Combines up to 4 non-contiguous channels - ?Quarter-clocked? operation of 20MHz 802.11n chipset ? Sensing enabled channel switching - Scans for interference, DTV, & microphones ? Agile Spectrum Allocation - Dynamically selects best available channels ? TVWS database - Identifies open channels and primary users ? Wideband radio - 200 MHz wide transceiver InterDigital?s DSM Platform Integrating Technology Blocks for a Complete Spectrum Sharing Solution 18 Cloud 18 ? Aggregation of up to four non- contiguous channels ? Geolocation database provides channel list ? Sensing-based channel ranking ? Channel selection combines database, ranking and user preference information ? Real-time interference management ? Channel management runs as PC application ? 2015 InterDigital, Inc. All Rights Reserved. Flexible Channel Management and Monitoring Software and Network Management To TVWS Network 19 InterDigital?s DSM Technology Showcased many times ? Telus, Toronto (Oct. 2012) ? DySPAN in Seattle, Washington (Oct. 2012) ? ETSI Workshop on Reconfigurable Radio Systems, Cannes, France (Dec. 2012) ? Mobile World Congress in Barcelona (Feb. 2013) ? QoSMOS in Washington, DC (Mar. 2013) ? NTIA?s Innovative Spectrum Sharing Technology Day in Washington, DC (Nov. 2013) ? DSA Global Summit in Bangkok (Nov. 2013) ? 2015 InterDigital, Inc. All Rights Reserved. 20 DL Throughput Rates Indoor Testing Cabled and Over-the-Air (OTA) RATE Number Of Channels UDP (Mbps) TCP (Mbps) Cable OTA Cable OTA MCS7 4 35.2 34.7 27.3 25.6 MCS6 4 33.1 32.6 25.5 24.5 MCS5 4 30.4 29.8 23.6 22.9 MCS4 4 24.9 24.5 19.7 18.1 MCS3 4 18.2 17.7 14.7 13.8 MCS2 4 14.1 13.9 11.5 10.4 MCS1 4 9.82 9.74 7.74 7.3 ? 2015 InterDigital, Inc. All Rights Reserved. 21 DSM Wi-Fi Outdoor Field Test Melville, NY, Aug 2013 Sample test results: 1 TVWS channel, 1.7 km LOS, MCS5, Tx power=20 dBm, Measured DL TCP data rate = 5 Mbps (single channel) ? 2015 InterDigital, Inc. All Rights Reserved. 22 DSM Wi-Fi Platform - Generation 2 TVWS + 3.5 GHz Operation ? 200 MHz coverage in 3.5 GHz or TV White Space frequency bands ? Dynamic allocation & aggregation of up to 4 non- contiguous channels ? Wi-Fi based physical layer for coexistence ? Integrated sensing for channel selection & interference management ? Compatible with US and UK certified geolocation databases ? Available first quarter 2015 ? 2015 InterDigital, Inc. All Rights Reserved. 23 Thank You! ? 2015 InterDigital, Inc. All Rights Reserved. Slide Number 1 5G: the evolution to the smarter living network Initial 5G Requirements Highlight Need for Spectrum Industry and Governments Actively Promoting Spectrum Sharing Spectrum Sharing: Deeper Dives Spectrum Sharing: Deeper Dives Licensed Assisted Access: LAA-LTE??100?s of MHz of unlicensed spectrum are a tempting target??But, coexistence with Wi-Fi raises questions about availability ?and Quality of Service LAA-LTE?Aggregating Licensed and Unlicensed Channels LTE Coexistence with Wi-Fi Spectrum Sharing: Deeper Dives Authorized Shared Access (ASA)?Licensed Shared Access (LSA) Sharing Federal Spectrum?FCC 3.5 GHz NPRM 3 Tier Model Spectrum Sharing: Deeper Dives TVWS Technology Plenty of TVWS Where Needed & Tools to Use It?Expected to be even much better in under-developed countries Spectrum Sharing: Deeper Dives Slide Number 17 Flexible Channel Management and Monitoring?Software and Network Management InterDigital?s DSM Technology ?Showcased many times DL Throughput Rates Indoor Testing ?Cabled and Over-the-Air (OTA) DSM Wi-Fi Outdoor Field Test?Melville, NY, Aug 2013 DSM Wi-Fi Platform - Generation 2 Thank You!