Institute for Telecommunication Sciences The Institute for Telecommunication Sciences (ITS) October 15, 2019 Michael Cotton, Division Chief Theory Division Institute for Telecommunication Sciences (ITS) National Telecommunications and Information Administration (NTIA)
Institute for Telecommunication Sciences NTIA’s Organization Office of the Assistant Secretary and NTIA Administrator Office of Policy Office of Chief Coordination and Counsel Management Office of Institute for Office of Office of Office of Policy Office of Public Spectrum Telecommunication Telecommunications International Analysis and Safety Management Sciences and Information Affairs Development Communications Applications (OSM) (ITS) ● NTIA is the President’s principal advisor on telecommunications and information policy ● NTIA also manages federal spectrum ● ITS is the research and engineering branch of the NTIA October 10, 2019 www.its.bldrdoc.gov 2
Institute for Telecommunication Sciences Institute for Telecommunication Sciences (ITS) ● The Institute for Telecommunication Sciences (ITS) is the U.S. government’s premier telecommunications laboratory Located in Boulder, CO ~80 technical staff, scientists, and engineers ● ITS mission Perform research and engineering required to inform policy Solve telecommunications concerns of other Federal agencies Perform analyses to manage and share spectrum efficiently ● ITS core capabilities Systems standards and evaluation (4G/LTE, 5G, user experience) Radio frequency (RF) propagation measurement and modeling Spectrum monitoring Electromagnetic compatibility (EMC) analysis October 10, 2019 www.its.bldrdoc.gov 3
Institute for Telecommunication Sciences Propagation Modeling Reflection Diffraction Scattering ● Propagation world experts: ITU-R Study Group 3 ● Derivation from first principles: IF-77, ITM ● Validation of propagation mechanisms for simple geometries ● Data-driven propagation models: urban, forest clutter ● mm-wave Propagation Model (MPM): atmospheric and hydrometeor propagation impairments October 10, 2019 www.its.bldrdoc.gov 4
Institute for Telecommunication Sciences Propagation Modeling Website (PMW) ● Use case: US Army First IO Command ● Information and cyberspace operations ● Modular, adaptable to 5G ● Visualize system coverage and identify gaps October 10, 2019 www.its.bldrdoc.gov 5
Institute for Telecommunication Sciences Propagation Loss Measurements ITS-authored best practices guide prepared for DISA/DSO Typical drive test route in Boulder used to validate measurement system Comparison of measured to modeled pathloss for end-point corrections www.its.bldrdoc.gov 6 October 10, 2019
Institute for Telecommunication Sciences RF Systems Measurements ITS field measurements are the benchmark for CSMAC WG1: 6 UEs at 100% aggregate LTE model validation ITS measured 0 instances of 6 concurrent UE transmissions in 4,800,000 timeslots ITS inspired LTE over-the-air protocol analysis challenges assumptions used in DoD models Spectrogram of LTE uplink in Longmont, CO October 10, 2019 www.its.bldrdoc.gov 7
Institute for Telecommunication Sciences Spectrum Monitoring ● Monitoring paradigm shift ● Drive down sensor cost Client ● Standardized and open software for distributed sensing and automation ● Real-world research test API and (optional) data service bed to experiment and Manager spur innovation SCOS ● Operationalize production data distribution adhering to government security API and (optional) data service controls Sensor October 10, 2019 www.its.bldrdoc.gov 8
Institute for Telecommunication Sciences Spectrum Monitoring at 700 MHz near San Diego T-Mobile AT&T AT&T T-Mobile AT&T Verizon FirstNet Public Safety Verizon FirstNet UL UL DL DL DL DL DL LMR UL UL Altán UL Altán DL October 10, 2019 www.its.bldrdoc.gov 9
Institute for Telecommunication Sciences Electromagnetic Compatibility One instance in ● Link- and system-level simulation a Monte Carlo ● Interference protection criteria simulation of LTE UE ● Aggregate modeling aggregate ● Specialization in high-priority verticals, interference. e.g., radar, mobile comms, SAS, Intelligent vehicle ● Real device testing — DSRC, c-V2X ● Traffic emulation — hardware that simulates 500 UEs ITS predicted LTE uplink aggregate interference (dashed line) compared to field measurements October 10, 2019 www.its.bldrdoc.gov 10
Institute for Telecommunication Sciences LTE Priority Services Test Bed ● Emulate emergency scenarios ● Test commercial cellular equipment ● Verify and optimize WPS feature functionality Data Collection Core Network Ericsson eNodeB Nokia eNodeB Carrier Grade Packet TM500 Data Collection Capture and Analysis Load Tester Virtualized Evolved Packet Core October 10, 2019 www.its.bldrdoc.gov 11
Institute for Telecommunication Sciences Quality of Experience (QoE) October 10, 2019 www.its.bldrdoc.gov 12
Institute for Telecommunication Sciences End to End Systems Analysis End-User Receiver Transmitter Radio Signal Receiver Quality of Front End Emissions Propagation Aggregation Performance Experience Effects • Weather • In-building, • Aggregate • Overload • Satellite • Speech satellites • Adjacent- foliage, and emissions receivers Intelligibility • GPS satellites • Spectrum dense urban • Land mobile • Image quality band • Radars • Atmospheric monitoring interference • Audio quality radios • Cell phones • Ionospheric • Spectrum • Intermod- • Radars • Video quality • WiFi devices • Air-to-ground • 3.5 GHz ESC • Data integrity occupancy ulation effects • FCC Part 15 • Terrestrial • Modeling • Measurement • In-building receivers • Visualization • Analysis devices • DFS (U-NII) methods coverage • Broadcast tools (PMW) • Encryption devices • UAVs • Model • GPS devices keying • DoD AWS-3 Validation • Open assets • Threat sims Propagation • Broadband Architecture • IoT devices • AWS-3 Coord. ITS is a cohesive, multidisciplinary team www.its.bldrdoc.gov 13 October 10, 2019
Institute for Telecommunication Sciences 5G October 10, 2019 www.its.bldrdoc.gov 14
Institute for Telecommunication Sciences FirstNet & DOT Standards Approach Participation Requirements Gap Analysis SDO Selection Development October 10, 2019 www.its.bldrdoc.gov 15
Institute for Telecommunication Sciences 5G Architecture ● Two radio technologies LTE (based on Release 15) Next Generation Radio (NR) ● Two core networks Evolved Packet Core (EPC – with potential evolutions) Next Generation Core Network (NGCN) 16
Institute for Telecommunication Sciences Options for Cellular Configurations Option 1) Standalone LTE, EPC Option 2) Standalone NR, NGCN connected, Legacy connected EPC NGCN LTE NR 17
Institute for Telecommunication Sciences Options for Cellular Configurations (cont.) Option 3) Non- Standalone/”LTE Option 3a) Non- Standalone/”LTE assisted”, EPC connected assisted”, EPC connected EPC NGCN EPC NGCN 1a LTE NR LTE NR 18
Institute for Telecommunication Sciences 5G vision - at the outset Gbps bandwidth 10 Mbps/m2 traffic density 1 million devices/km2 True ms latency 99,999% reliability 19
Institute for Telecommunication Sciences Timeline 2017 2018 2020 2019 Q4 Q4 Q4 Q1 Q2 Q3 Q1 Q2 Q3 Q1 Rel-15 NSA Rel-15 NSA “Main drop” (option-3) (option-3) freeze ASN.1 Rel-15 Rel-15 “Late drop” “Early drop” freeze (incl 5G ASN.1 (incl 5G SA) SA) Rel-15 late drop Rel-15 late drop freeze ASN.1 Rel-16 Study phase Rel-16 Study and Normative phase Rel-16 freeze Rel-16 ASN.1 20
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