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7-8 November 2017FOURTH OAI WORKSHOPOrange Gardens 40 - 48 avenue de la République 92320 Chatillon FranceSCHEDULE DAY 1 - NOV 7THMorning 7-I . chair Irfan Ghauri09:00CHRISTIAN GALLARD (ORANGE): WELCOME REMARKS09:05FEI SHEN (WICO): OPEN 5G PLATFORM09:30RAYMOND KNOPP (EURECOM): LTE-M DEVELOPMENTS IN OAI09:50YAXIN WANG (BUPT): C-RAN SYSTEM BASED ON OPENAIRINTERFACE: ACHIEVEMENTS AND PROSPECTS10:10PETER STRONG (CAMBIUM NETWORKS): A FIXED WIRELESS LTE TESTBED USING OAI10:30COFFEE BREAKMorning 7-II . chair Florian Kaltenberger10:45MONGAZON & ERICK BIZOUARN (NOKIA BELL LABS): I/Q RECORD-PLAYBACK IN OAI11:05YUKO AKIYAMA (FUJITSU): IMPROVEMENT OF SOFTWARE QUALITY11:25ILKER DEMIRKOL (UPC): LTE/5G SELF-BACKHAULING WITH OAI11:45NAVID NIKAEIN (EURECOM): TOWARDS SERVICE-ORIENTED CORE NETWORK ARCHITECTURE12:05LUHAN WANG (BUPT): 5G CORE NETWORK IN OAI12:30LUNCH BREAKAfternoon 7-III . chair Raymond Knopp13:45KUN CHEN (UNIV. CARLOS III): ANALYSIS & DESIGN OF ENHANCED OFDM WAVEFORMS WITH OAI14:05NAMIL KIM (ETRI): DEVELOPMENT OF ACCESS PLATFORM TECHNOLOGY BASED ON VIRTUALIZATION14:25HARRI SAARNISAARI (CWC UNIV. OF OULU): 5G TEST NETWORK AND INTEGRATION OF 5G AND SATCOM14:45IVAN SESKAR (RUTGERS): OPENAIR-CN DEPLOYMENT15:05NIKOS MAKIRIS (UNIVERSITY OF THESSALY): IMPLEMENTATION OF THE CU/DU SPLIT FOR OAI15:25COFFEE BREAKAfternoon 7-IV . chair Luhan Wang15:45FELIPE GIL-CASTIÑEIRA (UNIV. OF VIGO): THE UNIVERSITY OF VIGO IN OAI: VIRTUAL OPERATORS16:05MATTHIEU KANJ (B-COM): NB-IOT DEVELOPMENTS IN OPENAIRINTERFACE16:25LAURENT THOMAS (OPEN CELLS): OAI ENB REAL-TIME ON LIMITED-CPU MACHINE16:45KAHELD HASSAN (FRAUNHOFER IIS): LTE LATENCY REDUCTION WITH SHORTENED TTI USING OAI17:05FRANCOIS TABURET (NOKIA BELL-LABS): TOWARD AN OAI MODULAR ARCHITECTURE: THECONFIGURATION MODULE EXAMPLE17:25PANEL: JOB(S) OAI DOES FOR YOUR ORGANIZATION - CHAIR: CHRISTIAN BONNETSPEAKERS: YUKO AKIYAMA (FUJITSU), PIERRE BONNARD (TCL), RAYMOND KNOPP (EURECOM),LAURENT ROULLET (NOKIA BELL-LABS), CHRISTIAN GALLARD (ORANGE), MARK GRAYSON (CISCO)
7-8 November 2017FOURTH OAI WORKSHOPOrange Gardens 40 - 48 avenue de la République 92320 Chatillon FranceSCHEDULE DAY 2 - NOV. 8TH TALKSMorning 8-I . chair Irfan Ghauri09:00CHRISTIAN BONNET (OSA): WELCOME REMARKS09:05ADRIAN HOWES (NOKIA): KEYNOTE ON OPEN SOURCE AND FRAND LICENSING, A NEW PARADIGM09:30MARION DUPREZ (ORANGE): 5G OPEN PLATFORM, AN OPERATOR STRATEGY09:55AKIHIRO NAKAO (UNIV. OF TOKYO): RESEARCH & DEVELOPMENT ON END-TO-END NETWORK SLICING10:20COFFEE BREAK AND DEMO VISITSMorning 8-II . chair Luhan Wang10:50RAYMOND KNOPP (EURECOM): OAI ROADMAP (WITH FLORIAN KALTENBERGER & LIONEL GAUTHIER)11:15TOM TSOU (ETTUS): ETTUS RESEARCH FUTURE DIRECTIONS11:40JOHN DOYLE (BENETEL): DEVELOPMENTS IN 4G SMALL CELL BASE STATIONS & REMOTE RADIO UNITS12:05GUILLAUME VIVIER (SEQUANS): CAT-M & NB-IOT: STANDARDS, MARKET AND OAI PERSPECTIVE12:30LUNCH BREAKAfternoon 8-III . chair Raymond Knopp13:45MARK GRAYSON (CISCO):FROM VIRTUALIZATION, MULTI-VENDOR SHARING,TO 5G RAN MODULARIZATION14:10BRUNO JECHOUX (TCL): 5G-NR PROJECT: OVERVIEW, STATUS AND WAY FORWARD14:35PAUL CRANE (BRITISH TELECOM): EXTENDING COVERAGE WITH DRONE AND BALLOONS15:00KAZUNARI KOBAYASHI (FUJITSU): APPROACH TO COMMERCIAL USE OF OAI15:25COFFEE BREAK AND DEMO VISITSAfternoon 8-IV . chair Florian Kaltenberger16:15ZHAOMING LU (BUPT): OVERVIEW OF OAI WORK IN BUPT16:40NAVID NIKAEIN (EURECOM): MOSAIC5G:ECOSYSTEM OF AGILE NETWORK SERVICE DELIVERY PLATFORMS17:05JEROME HAERRI (EURECOM/VENCORE): DEVICE-TO-DEVICE FOR PUBLIC SAFETY17:30OLIVIER CHOISY (B-COM): CORE NETWORK EVOLUTION (FROM CUPS & SDN EPC TO NEW 5G AMF/SMF)17:55DEMO VISITSSCHEDULE DAY 2 - NOV. 8TH DEMOSHONGZHI WANG (TCL): 5G NR COMMUNICATIONS ON OAILUHAN WANG (BUPT): VISUALIZED CONFIGURATION FOR OAIXINLI ZHOU (CHINA MOBILE/BUPT): 5G NETWORK-SLICING BASED ON OAIDAVID PRICE (CISCO): OAI NFAPI INTEGRATION – THE SMALL CELL FORUM’S MAC/PHY VIRTUALIZATION SPLITLAURENT THOMAS (OPEN CELLS): ALL-IN-ONE OAI ON 2 CORES INTEL CPURAYMOND KNOPP (EURECOM): A DEMO OF LTE-M FUNCTIONALITY ON OAINAVID NIKAEIN (EURECOM): LOW-LATENCY MEC PLATFORMSHAHAB SHARIAT (EURECOM): RAN SLICING DEMONSTRATION
AbstractsDay - 1 : November 7thOpen 5G PlatformAbstract: In this talk, we will give an introduction of an open 5G platform, which applies SDN and NFV techniques to realize all the functions ofa telecom operator on general CPU/GPU computing platform. New technical challenges and potential applications of this open 5G platform willbe fully discussed.LTE-M Developments in OAIAbstract: This talk discusses the LTE-M project activities at the Alliance. We shall speak about project objectives, goals and objectives of thecontributing parties, development plans, early results and collaboration opportunities.C-RAN System based on OpenAirInterface: Achievements and ProspectsAbstract: We shall introduce the testbed; Hardware: FPGA cards, Smartile from China Mobile Research Institute, commercial off-the-shelf UE;Software: OpenAirInterface, Commercial EPC; Performance: 20Mbps download bitrates through the air(20M TDD); Demo(pictures and videos).We shall speak about Cross-layer bandwidth estimation algorithm, Architecture, process, performance, testbed demo., Evaluation methodologyfor fast switching CRAN systems:VM scenario: architecture, live migration. We shall also have CU-DU split options and architecturesA Fixed Wireless LTE Testbed using OAIAbstract: LTE is an attractive technology for broadband fixed wireless access (FWA). FWA requirements and characteristics differ from thosefor mobile access creating new possibilities for system optimisation. This presentation describes an LTE test bed being assembled to exploreFWA using the OAI resources.I/Q Record-Playback in OAIAbstract: Describe and demonstrate the capability to record and playback radio samples in OAI. The radio samples can be recorded inmemory during radio device code (i.e. USRP) execution and stored into a file at execution termination. The radio samples stored into a file canbe loaded in memory at execution start and provided by the radio device code instead of real I/Q. This allows to debug, study and assert OAIcode as a whole without having the 1 ms. constraint of radio interface.Improvement of Software QualityAbstract: The presentation treats how we can improve software quality at OAI and the result of using the software metrics tool and applying toOAI.LTE/5G Self-Backhauling with OAIAbstract: A challenge for LTE/5G cell densification is the backhauling of the small cells, since the fiber-based backhauling is costly and is notalways feasible given the physical environment. For this, a recent idea is to use LTE/5G self-backhauling, where an eNB/gNB can relay its datato another g/eNB through the use of LTE/5G access technology. In this study, we develop and evaluate an implementation of LTE SelfBackhauling building on OAI and commodity hardware for the LTE system. For this, we implement a self-backhauled eNodeB, which connectsto another eNB through an LTE connection.Towards Service-Oriented Core Network Architecture in OAIAbstract: In this talk, we will present the 3GPPP service-oriented core network architecture and explore the implications of MEC, NFV, SDN inproviding the required flexibility to enable the slicing for the mobile core network. We further discuss on how to re-architect the OAI corenetwork toward a service-delivery platform. Technical challenges and potential applications of service-oriented core network and its interplaywith the RAN will be also discussed.5G Core Network in OAIAbstract: Service Based Architecture has been proposed as the 5G core network architecture. 5G signaling protocol requirement are alsodiscussed in 3GPP TSG CT4 Meeting. However, there still are many details are still open to discuss. BUPT and Eurecom has already beenworking on the 5G core network prototype by refactoring the openair-cn. The first step would be that split MME into EMM and ESM, to createAMF and SMF. In this presentation, I will introduce the work about 5G core network in OAI. And the plan to implement the service basedarchitecture. Lastly, some preliminary performance comparisons between candidate signaling protocols are given.Analysis and Design of Enhanced OFDM Waveforms with OAIAbstract: The Fifth Generation of mobile communications (5G) is being standardized in order to reach higher data rates and deploy newservices. Orthogonal Frequency Division Multiplexing (OFDM) has a high Out-of-Band Emissions (OBE) which forces us to leave wider guardbands, reducing so the spectral efficiency. Recently, we have proposed the Power Adapted – OFDM (PA-OFDM) which is capable of fulfillingthe requirements of 5G and avoid the main issues of the proposed candidates. OpenAirInterface (OAI) is a powerful and flexible wirelesstechnology platform based on the Long-Term Evolution (LTE) ecosystem, which offers the possibility of evaluating the entire mobilecommunication system. In this paper, we will evaluate the proposed waveform candidate using the OAI throughout some measurements.Development of Access Platform Technology based on VirtualizationAbstract: The key technologies of the 5G system are High Bandwidth, Low Latency and Massive Connectivity. The 5G mobile communicationshould provide users with personalized, localized and intelligent new concept services. Therefore, it is necessary to secure design andimplementation technology that guarantees flexibility of its structure in addition to communication technology such as high speed, low delay,and concatenation. The 5G mobile communication infrastructure with virtualization can adapt and reconfigure communication functionsadaptively to the environment to quickly reflect needs of users and markets. 5G services can be accommodated by sharing resources in oneequipment, rather than requiring different devices for execution. The virtualization system is good candidate to support a converged 5G service.In this talk, we focus on the work in progress in virtualization of the base station including some use case, design and implementation.
5G Test Network and Integration of 5G and SatcomAbstract: In this presentation the 5G Test Network (5GTN) at the University of Oulu, Centre for Wireless Communications (CWC), isintroduced. Its high level structure and building blocks are described as well as future update plans. Then, the main goals within 5GTN andH2020 SaT5G project are discussed. The presentation is ended by discussion where OAI is seen a useful part of the demonstration systemespecially from the 5G and Satcom integration point of view.OpenAirCN DeploymentAbstract: This talk will introduce open access experimental facility consisting of a variety of SDR peripherals, of-the-shelf 4G infrastructuredevices, compute and storage resources, and a high-speed local (campus) and global (continental) SDN-based network enabling large scaleOAI-based experimentation.Implementation of the CU/DU Split for OAIAbstract: The presentation will showcase the ongoing implementation on OpenAirInterface for splitting the networking stack as defined in the3GPP standards for the NR interface. The splitting of the gNB functionality is taking place between the PDCP and RLC layers, with the PDCPlayers and upwards being located at the Central Unit (CU), and the RLC and below layers being located at the Distributed Units (DUs). TheF1AP protocol tis in charge of the signaling between the CU and available DUs in the system. The presentation will focus on the protocolaspects and the current status in implementation.The University of Vigo in OAI: Virtual OperatorsAbstract: The atlanTTic research center (www.atlanttic.uvigo.es) is part of the University of Vigo, a public university located in Galicia (NWSpain). The main research lines include networking, virtualization, mobile communications, and protocols down to the physical layer. In thispresentation we describe our current work towards the creation of “Virtual Operators” (independent operators sharing a common physicalinfrastructure) using OpenAirInterface.NB-IoT Developments in OpenAirInterfaceAbstract: In this talk, we present the NB-IoT project (The contributing members, current teams and the main targets of the project). We presentalso the history and the current status of the development of NB-IoT standard in OAI. The talk is concluded by announcing the NB-IoT featuresthat will be provided in OAI by the end of 2017.OAI eNB Real-Time on Limited-CPU MachineAbstract: This talk will discuss Real time Linux on Intel CPU: preemption, C-State, P-states, hyper-threading, OAI framework, its purpose andour enhancements, mainly ITTI, thread management in OAI, and SW building, application of Linux real time. We shall also see application toOAI eNB: performance results on 2 cores seriesLTE Latency Reduction with Shortened TTI using OpenAirInterfaceAbstract: Future wireless communication is delivering many new use cases demanding ultra-low latency, ultra-reliability or a combination ofboth high reliability and low latency (namely the ultra-reliable and low latency communications (URLLC) technology). Currently, new radio (NR)standardization has started rapidly in the 3GPP standardization with basic numerologies, functionalities, and cross-layers suitable solutions forURLLC. Similarly, LTE in its upcoming release (Rel. 15) is going to utilize the basic findings in NR together with the conducted achievements ofthe shorten transmission time interval (sTTI) study to enhance LTE operation for a range of reliability targets and latency constraints.Accordingly, with a focus on URLLC goals, Fraunhofer IIS has started steadily implementing the new sTTI physical structure and the identifiedimprovements in data and control scheduling for low-latency. This is implemented by modifying OpenAirInterface protocol stack accordingly andrestructure the code modules mainly for layer-1 and layer-2. Our talk gives more insights and details about our design aspects and proposedsolutions. Furthermore, challenges for satisfying the ITU-IMT-2020/3GPP-TR38.913 requirements of URLLC as well as migration towards NRnumerology is going to be discussed.Toward an OAI Modular Architecture: The Configuration Module ExampleAbstract: Nokia Bell-Labs, as a contribution to make OpenAirInterface a modular and evolutive platform, rewrote the configuration mechanismused at initialization time, when starting the OAI eNodeB. A first version of this configuration module has been delivered, the presentation willdescribe the architecture and the Application Programming Interface of the module. It will then summarize the benefits OAI developers andusers can get from this module. The presentation will also give some usage examples of the configuration module and propose futureevolutions for this module.Day - 2 : November 8thKeynote: Open Source and FRAND Licensing: A New ParadigmAbstract: This is an introduction to Intellectual Property Rights (IPR), Standards, Fair, Reasonable, And Non-Discriminatory (FRAND) licensingand Open Source Software (OSS) licensing; and their impact and increasing importance in ICT owing to the increasing use of software. Heretwo IPR licensing philosophies are meeting, where it is important to retain the benefits of both to ensure future success. We shall speak abouthow to make this work and what we have managed to accomplish as far as the OAI model is concerned.5G Open Platform: An Operator StrategyAbstract: This talk gives an overview of the 5G Open Platform from an operator’s perspective.Research and Development on End-to-End Network SlicingAbstract: Network softwarization and network slicing are considered essential concepts for building 5G mobile networks and beyond to flexiblyaccommodating applications and services with a wide spectrum of diverse requirements. We will introduce our research on softwarizedinfrastructure using our deeply programmable network platform and OAI to demonstrate our position for future mobile networking.
OAI Status and Roadmap (with Florian Kaltenberger and Lionel Gauthier)Abstract: This talk brings to view ongoing projects at the Alliance and walks us through the recent developments in these works. It also relatesprojects to teams and organizations leading and participating in these projects. For the listener this is a good way to find out who else isworking on the Alliance on topics of her/his interest.ETTUS Research Future DirectionsAbstract: This is an update on recently announced USRP products and future product requirements.Developments in 4G Small-Cell Base Stations & Remote Radio Units at BenetelAbstract: This talk will start with an overview of System on Chip based 4G small cell base station architectures. We will present a summary ofTransceiver architectures and highlight some aspects related to LTE in private networks. We will then consider the response to the emergingneed for increased user data throughput with wider bandwidth radio transceivers and split Remote Radio Unit – Centralised Base BandProcessing architectures as a step towards 5G networks.Overview of Cat-M and NB-IoT: Standards, Market and OAI PerspectiveAbstract: The talk will present the 3GPP approach for LPWA systems, also known as cat-M and NB-IOT. It will recall the feature evolution fromthe initial release, Rel. 13 to the the most recent activities. The presentation will touch market perspective of such technologies. Finally, it willdiscuss the mutual benefit between Sequans and OAI.Multi-vendor and Open Source Drivers for RAN DensificationAbstract: This talk reviews the drivers that led the Small Cell Forum to define their nFAPI multi-vendor MAC/PHY split for supporting virtualizedsmall cells and examines the role of neutral host in accelerating 5G deployments. It also discusses Cisco’s open-nFAPI program together withhighlighting the latest status of the integration with OAI.5G-NR Project – Overview, Status and Way ForwardAbstract: This talk summarizes 5G NR activities at OSA. We shall speak about project objectives, development plans, early results andcollaboration opportunities.Extending Coverage with Drones and BalloonsAbstract: We shall speak about about ongoing projects in this area.Approach to Commercial Use of OAIAbstract: For the 5G era, the network needs to evolve greatly. In order to realize its evolution, OAI needs to grow further. This presentationshows how Fujitsu is contributing to the growth of OAI.Overview of OAI Work in BUPTAbstract: OpenAirInterface has attracted much attention in academic and industrial areas. In this presentation I will give a brief overview of OAIwork in BUPT. The first one is the outdoor testing environment. We have done extensive performance evaluation with different setting(with/without PA LN-PA, omni-directional antenna/directional antenna). Many SDR companies show interests in supporting OAI, we hope theoutdoor testing bed can help them to test their products. The second is about using OAI in vertical industrials – OAI enabled remote driving. Wehave made a remote driving prototype, to show that OAI can be facilitate the research and implementation of 5G in vertical industrials.Mosaic5G – Agile Network Service Delivery PlatformsAbstract: The Mosaic5G is an ecosystem of opensource platforms and use-cases for fast 4G-5G experimental system research andprototyping, created by Eurecom in 2015. It was formed to develop, promote, and share an agile software-based network service deliveryplatforms to rapidly explore new ideas as well as application and business needs. Mosaic5G allows research and industrial communities toexplore advanced RAN and CN architectures towards a service-oriented architecture along the following directions: network slicing, control anduser plane programmability, model-driven network service orchestration, and network application store and SDK.Device-to-Device for Public SafetyAbstract: In this talk, we present the LTE D2D project for Public Safety (PS). We describe the use cases, the architecture extensions toOpenAirInterface, as well as the LTE Proximity Services (ProSe) functions coordinating LTE D2D for PS. This talk will conclude with timeline ofthe expected outcome in 2017 and 2018.Core Network evolution (from CUPS & SDN ePC to new 5G Functions)Abstract: Based on OAI Core Network software, Bcom has developed a set of VNFs providing unified access for 4G and Wi-Fi with strongauthentications. This UGW is developed introducing different concepts from 5G (CUPS, multi-access, orchestration, ). We will present thecurrent status, the on going work. Then we will list our requirements from OAI-CN and our coming activities towards a 5G architecture (slicing,microservices, )
always feasible given the physical environment. For this, a recent idea is to use LTE/5G self-backhauling, where an eNB/gNB can relay its data to another g/eNB through the use of LTE/5G access technology. In this study, we develop and evaluate an implementation of LTE Self- Backhauling building on OAI and commodity hardware for the LTE system.
