HiFi-LTE-EMANE Project Overview OAI Workshop 2019 June …...LTE EMANE Project Introduction •Phase...

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HiFi-LTE-EMANE Project OverviewOAI Workshop 2019

© 2019 InterDigital, Inc. All Rights Reserved

June 2019

22

Agenda

• About InterDigital

• Introduction• LTE EMANE project introduction

• Minimum LTE Requirements

• Introduction to EMANE

• Introduction to OAI

• LTE EMANE Phase 1 Project• LTE EMANE Phase 1 Demo

• LTE EMANE Phase 1 Accomplishments

• LTE EMANE Phase 2 Project• LTE EMANE Phase 2 Architecture

• LTE EMANE Phase 2 Deployment

• LTE EMANE Phase 2 Physical Layer Abstraction

• LTE EMANE Radio Model Plugin Software Architecture

• LTE EMANE Phase 2 Work Scope


33

About InterDigital


44

A pioneer in wireless broadband, digital cellular and Wi-Fi

• Four decades of discovery and innovation in wireless

• Pioneer in digital wireless technologies

• Key contributions to global wireless standards

• Inventing solutions for more efficient broadband networks

• ~185 engineers (~80% of whom hold advanced degrees)

• Growing International Presence

• >$1B+ in cumulative R&D expense since 2000

• ~1000+ contributions to 3GPP including 5G

• ~34,000 granted and pending patents

• 18,000 from Technicolor Portfolio acquisition

Named Top 100 Global Innovator by Clarivate Analytics in 2015 & 2016 (formerly Thomson Reuters, IP & Science Div.)

© 2019 InterDigital, Inc. All Rights Reserved4

• California• New York• Pennsylvania• Montreal

• Berlin• Brussels• Delaware• Maryland

• Washington, D.C.• London• Shanghai• New Jersey

• Paris• Indiana• Rennes• Seoul

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Our Core Research and Development Areas Today

Sensors & FusionIntegration of Hillcrest Labs positions us strongly in this growing space with products and advanced research projects

Media and VideoEnhancing the AR/VR experience with optimized bandwidth and low latency solutions, and one of world’s largest patent portfolios in this area

5G and Beyond!Core technology through to platform development and testbed deployment across all elements of the system (terminal, edge, core and internet)

Internet of EverythingWorld-leading oneM2M-based product platform offered to market and testbeds under Chordant brand plus research & standards

5 © 2019 InterDigital, Inc. All Rights Reserved

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• Evolution to 5G and beyond

• Next Generation Cellular Standards

• Next Generation Wi-Fi Standards

• IoT Standards & Platform Development

• Cellular Unlicensed & Spectrum Sharing

• NR-U for home & enterprise use

• mmW Access and Transport Systems

• Emerging Wi-Fi and cellular applications

• Next generation SDN-controlled transport

• Backhaul & Fronthaul

• Electronically phased array architectures & algorithms

• EdgeLinkTM & EdgeHaulTM – Field trialed platforms

• Security and Trust

• Cellular, Wi-Fi, and emerging wireless applications

• Multifactor authentication

Some Initiatives in Our Labs...

• Advanced Video Standards and Platforms

• Video Standards: ITU-T/VCEG, ISO/IEC/MPEG, …

• Augmented/Virtual Reality & 360o coding

• Reference encoder/decoder platforms

• Service-based Architectures (AdvantEdge)

• Targeted for Mobile Edge Computing applications

• Integrated with SDN/NFV infrastructures

• Deployed as 5G test bed in early 2018

• Advanced Sensors

• Navigation and Localization

• Robotics & Autonomous Vehicles

• Biometrics

• Incubation & Emerging Opportunities

• Artificial Intelligence / Machine Learning

• Intelligent Vehicles

• Drones

• Ultra Low Power Radio

© 2019 InterDigital, Inc. All Rights Reserved6

77

Introduction


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LTE EMANE Project Introduction

• About:• DoD SBIR A18-038 Solicitation

• Objective:• Develop an emulation system capable of deploying a full LTE/5G architecture, including all subcomponents,

utilizing open source software, into self contained commodity personal computer hardware

• Utilize open source shared code for LTE and interface with an emulated physical layer in Extendable Mobile AdhocNetwork Emulator (EMANE) for research and experimentation on using LTE for tactical comms and mission command systems under varying scenario configurations and conditions

• Phase 1:• Study the full ecosystem of LTE and design of an open source full LTE deployment in EMANE environment

• Considerations for scaling up to multiple eNodeB with hundreds of UEs per base station

• Phase 2:• Implement the design by developing a prototype open source LTE emulation which can be integrated into a larger

system of systems emulation

• Real time operation and integration of actual applications on top of OAI/EMANE stack

• At least one EPC/eNodeB and 100 UEs

• Phase 3:• Scale production of LTE emulation to multiple eNodeB/EPC base stations and 100s of UE devices


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LTE EMANE Project Introduction

• Phase 1 was completed Dec 2018• High level system design to show concept of operation

• IDCC and EpiSci demonstrated OAI LTE operating with EMANE/Core• Single UE + Single eNB + EPC

• Demonstrated OAISIM with baseband IQ samples over EMANE/Core infrastructure

• Demonstrated DL traffic. UL not demonstrated.

• Used the development branch based on OAISIM with Ethernet transport configuration

• Phase 2 is ongoing• Prototype development (TRL 5-6)

• Project performance duration is 24 months

• Phase 3 will start after completion of Phase 2• Full scale deployment

• Highly stable/robust


1010

Minimum LTE requirements

• Targeting Release 8.6 specification based on common supported features across OAI UE, eNB and EPC code bases

• Supported antenna configurations: (depending on EMANE capability)• eNB: 1,2,4 Tx, 1,2,4 Rx• UE: 1 Tx, 1 or 2 Rx

• DL Transmission Modes: 1 (single port), 2 (Tx Diversity), 4 (Closed-loop spatial multiplexing), 5 (MU-MIMO), 6 (single-layer, closed-loop spatial multiplexing)

• UL Transmission Modes: 1 (single port)

• CP length: normal CP

• System Bandwidth: all LTE system bandwidths

• Carrier frequencies: all LTE bands

• No eMBMS or LTE positioning support


1111

EMANE


• Open source modular framework for design, development and testing of complex network architecture

• Provides a set of well defined APIs for • Developing network emulation

modules, • Emulations/application

boundary interfaces and • Emulation environment data

distribution mechanisms.

• C++/XML based

• Can be used in centralized and distributed deployments

• Currently supported Radio Models• RF Pipe Model• IEEE 802.11 abg Model• TDMA Event Scheduler Model

1212

LTE EMANE Phase 1(Completed Dec 2018)


1313

LTE EMANE Phase 1 Demo


OAI LTE was used as an application over EMANE RF pipe

1414

LTE EMANE Phase 1 Accomplishments

• Completed high level system design for integrating OAI into EMANE

• Integrated OAI into EMANE with OAI as a application on EMANE virtual machine• Single UE + Single eNodeB +

EPC• Baseband IQ samples for LTE 20

MHz were transferred through EMANE

• Maximum Downlink Throughput using 20MHz LTE system was demonstrated.

• UBUNTU platform with real time kernel


1515

LTE EMANE Phase 2(Proposed)


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LTE EMANE Phase 2 Architecture


OAI LTE will be used to develop an EMANE plugin

1717

LTE EMANE Phase 2 Deployment


System Scalability• Distributed EMANE

deployment• Multicast OTA

channels based on eNB transmission range

• 2ms LTE subframe clustering

1818

LTE EMANE Phase 2 Physical Layer Abstraction Processing


MAC Layer Processing

RLC Layer Processing

LTE Physical Layer – Downlink Processing

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LTE PHY Layer Ethernet Packet Packaging

LTE UL PHY Abstraction Layer

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PBCH Bits

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PCFICH BIts

PHICH BIts

PMCH Bits

LTE PHY Layer Ethernet Packet Packaging

LTE DL PHY Abstraction Layer

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LTE Physical Layer – Uplink Processing

CRSInfo

UplinkDownlink

LTE PHY Layer Processing

LTE PHY Layer Abstraction Processing

OAI

New SW

1919

LTE EMANE Radio Model Plugin Software Architecture


UE_thread_rxn_txnp4

oai_mainCmdine background

processFork process

Execute Cmd in shell

Cmdine background process

Pipe

Init_UE(){ Init_UE_devices()Init_UE_threads() }

UE_thread_rxn_txnp4

UE_thread_sync

UE_thread_slot1_dl_processing

L2l1_task

nas_ue_task Rrc_ue_task

Pdcp_netlink_thread_fct

+ initialize()+ configure()

+ start()+ stop ()

+ destroy ()

LTE NEM

OAI processmanagement

+ processDownstreamPacket()+ processDownstreamControl

+ processEvent()+ processTimedEvent()

OAI Stack Eventforwarding

OAI LTE Processes and Threads

LPHY derived from UPHY

3GPP Channel Modeling and Data Processing

+ processUpstreamPacket()+ processUpstreamControl()

2020

LTE EMANE Phase 2 Work Scope

• Develop OAI LTE Library for EMANE.

• Develop new PHY abstraction layer to remove baseband I/Q processing but retaining PHY control processing

• Support deployment of OAI on multiple Virtual Machines on same PC

• Support distributed deployment of OAI on multiple PCs• Develop system traffic reduction techniques in distributed deployments.

• Add support for high-fidelity LTE channel model in distributed testbed

• Add support for mobility in distributed testbed

• Automate OAI system configuration via CORE Emulator

• Support simulations on large scale• 100’s of UE per cell• Minimum 2 of eNodeBs• 1 EPC

• Support full CentOS7 operation

• Support OAI LTE interaction with Military tactical radios

• Stabilize the implementation to military purpose standards

• Future support of 5G within EMANE in future with DoD.


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The end.


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