Telecommunication Sciences (ITS) October 15, 2019 Michael Cotton, - - PowerPoint PPT Presentation

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

2

Office of the Assistant Secretary and NTIA Administrator Office of Spectrum Management (OSM) Office of International Affairs Office of Policy Analysis and Development Office of Telecommunications and Information Applications Institute for Telecommunication Sciences (ITS) Office of Public Safety Communications Office of Chief Counsel Office of Policy Coordination and Management

• 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

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

Diffraction Reflection 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

• perations
• Modular, adaptable

to 5G

• Visualize system

coverage and identify gaps

5 October 10, 2019 www.its.bldrdoc.gov

Institute for Telecommunication Sciences

Propagation Loss Measurements

www.its.bldrdoc.gov 6

Typical drive test route in Boulder used to validate measurement system

Comparison of measured to modeled pathloss for end-point corrections ITS-authored best practices guide prepared for DISA/DSO

October 10, 2019

Institute for Telecommunication Sciences

RF Systems Measurements

CSMAC WG1: 6 UEs at 100% 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 ITS field measurements are the benchmark for aggregate LTE model validation 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
• Standardized and open

software for distributed sensing and automation

• Real-world research test

bed to experiment and spur innovation

• Operationalize production

data distribution adhering to government security controls

API and (optional) data service

Sensor SCOS Client Manager

API and (optional) data service October 10, 2019 www.its.bldrdoc.gov 8

Institute for Telecommunication Sciences

Spectrum Monitoring at 700 MHz near San Diego

October 10, 2019 www.its.bldrdoc.gov 9

Altán DL Verizon UL Altán UL FirstNet UL Public Safety LMR FirstNet DL Verizon DL AT&T DL T-Mobile DL T-Mobile UL AT&T UL AT&T DL

Institute for Telecommunication Sciences

Electromagnetic Compatibility

• Link- and system-level simulation
• Interference protection criteria
• Aggregate modeling
• Specialization in high-priority verticals,

e.g., radar, mobile comms, SAS, Intelligent vehicle

• Real device testing — DSRC, c-V2X
• Traffic emulation — hardware that

simulates 500 UEs

One instance in a Monte Carlo simulation of LTE UE aggregate interference. 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

TM500

Carrier Grade Packet Capture and Analysis Data Collection Data Collection Virtualized Evolved Packet Core Core Network Nokia eNodeB Ericsson eNodeB Load Tester

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

Transmitter Emissions Radio Propagation Signal Aggregation Receiver Front End Effects Receiver Performance End-User Quality of Experience

• Weather

satellites

• GPS satellites
• Radars
• Cell phones
• WiFi devices
• FCC Part 15

devices

• Broadcast
• UAVs
• DoD AWS-3

assets

• Threat sims
• Broadband
• IoT devices
• In-building,

foliage, and dense urban

• Atmospheric
• Ionospheric
• Air-to-ground
• Terrestrial
• Visualization

tools (PMW)

• Model

Validation

• Open

Propagation Architecture

• AWS-3 Coord.
• Aggregate

emissions

• Spectrum

monitoring

• Spectrum
• ccupancy
• Modeling
• Analysis
• Overload
• Adjacent-

band interference

• Intermod-

ulation effects

• Measurement

methods

• Satellite

receivers

• Land mobile

radios

• Radars
• 3.5 GHz ESC

receivers

• DFS (U-NII)

devices

• GPS devices
• Speech

Intelligibility

• Image quality
• Audio quality
• Video quality
• Data integrity
• In-building

coverage

• Encryption

keying

End to End Systems Analysis

www.its.bldrdoc.gov 13

ITS is a cohesive, multidisciplinary team

October 10, 2019

Institute for Telecommunication Sciences

5G

October 10, 2019 www.its.bldrdoc.gov 14

Institute for Telecommunication Sciences

FirstNet & DOT Standards Approach

Requirements Development Gap Analysis SDO Selection Participation

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

EPC LTE Option 1) Standalone LTE, EPC connected, Legacy NGCN NR Option 2) Standalone NR, NGCN connected

Options for Cellular Configurations

17

Institute for Telecommunication Sciences

EPC LTE Option 3) Non-Standalone/”LTE assisted”, EPC connected NGCN NR Option 3a) Non-Standalone/”LTE assisted”, EPC connected EPC LTE NGCN NR 1a

Options for Cellular Configurations (cont.)

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

20 Rel-16 Study phase Q2 Q3 Q4 2019 Q2 Q3 Q4 Q1 2020 Q1 Rel-16 Study and Normative phase Rel-16 freeze Rel-16 ASN.1 Rel-15 freeze (incl 5G SA) Rel-15 late drop freeze 2018 Q1 2017 Q4 Rel-15 NSA (option-3) freeze Rel-15 NSA (option-3) ASN.1 Rel-15 ASN.1 (incl 5G SA) Rel-15 late drop ASN.1

“Early drop” “Main drop” “Late drop”