FUJITSU’s OAI activity of the year and the road ahead...Specified by one of the sub-specification of the MULTEFIRE sXGP Band 39(TDD) 1880 MHz 1920 MHz 1899.3 MHz sXGP 5MHz BW sXGP

Copyright 2018 FUJITSU LIMITED

FUJITSU’s OAI activity of the year and the road ahead

13th Dec., 2018Masayuki HARADA, FUJITSU Limited

[email protected]

0

Joint ETSI - OSA Workshop: Open Implementations and Standardization

Contents

Copyright 2018 FUJITSU LIMITED1

1. Activity of the year

2. Activity toward the road ahead

3. Challenges

Activity of the year


FUJITSU Activity since Oct. 2017


Phase #3✔TDD config 1✔Code Stabilization

Phase #2✔Multiple UEs✔eNB Operational

Data Collection

2017 2018

Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

▼Workshop@Beijing

▼ CI Workshop@Eurecom▼Workshop@Paris

Phase #4✔sXGP (Multefire)✔L2 nFAPI Simulator

CI w/ Hardware (USRP + COTS-UE)

CI w/o Hardware

Software Development

Continuous Integration(CI) Development

Experiment

Evaluation in Anechoic Chamber

(FDD&TDD)

FieldExperiment(FDD)

Evaluation w/ Various Hardware

(FDD&TDD)

3

FUJITSU Activity (Feature Based)


FDD / TDD (Config 1)Duplex

5MHz / 10MHz / 20MHzBandwidth

TM1 / TM2 / TM3 / TM4 / TM5 / TM6 / TM7Transmission Mode

PSS / SSS / PBCH / PCFICH / PHICH / PDCCHDL Channel

PRACH / PUSCH / PUCCH (format 1/1a/1b) / SRS / DRSUL Channel

OFDMA (DL) / SC-FDMA (UL)Multiple Access

QPSK / 16QAM / 64QAMModulation

Origination/Destination/Release/Reestablishment/Hand OverCall

Features tested / implemented by FUJITSUImplementedTested

Tested Tested

Tested Implemented

Tested Tested Tested


Tested

Tested Tested Tested Tested Tested Tested


Tested Tested Tested Implemented

Number of UEs ↑ (256UEs w/ Bw5MHz)PerformanceImplemented

sXGP / O&M (Network Data Collection)OthersImplemented

Implementing

Implementing

Implementing

4

Continuous Integration

3Types of CI Push/Merge Request

•CI w/o Hardware

Nightly

•CI w/ Hardware (Repetitive Test)

Weekly

•CI w/ Hardware (Long Duration Test)


The Number of CI Testing

w/o Hardwarew/ Hardware

The Running Time of CI Testing

342,677min = 247daysw/o Hardware

w/ Hardware

13,182min = 9days

Actual results of CI testing in last 10 months

CI w/ Hardware is the based of the CI environment in Eurecom

1,000 2,000 2,500500 1,5000

0 100,000 200,000 300,000 400,000 min

5

Activity toward the road ahead


Expectations for Private LTE

The development of standards for Private LTE is proceeding


sXGP : Japanese private LTE specification Specified by one of the sub-specification of the MULTEFIRE

sXGP

Band 39(TDD)1880 MHz 1920 MHz

1899.3 MHz

sXGP5MHz BW

sXGP Overview

Freq. / BW Band 39 / 5MHz BW(MAX)

Duplex LTE-TDD

Power 200 mW

Operation Unlicensed

The flexibility of the network will be most important

7

Activities for commercial


Evaluation with Various CPU1

Evaluation with Various Hardware2

Video3

8

Evaluation with Various CPU


CPU Freq.Processing Time of

1Subframe

1.7GHz(4core) 476us

2.6GHz(4core) 406us

3.2GHz(4core) 320us

Result of processing time when CPU freq. is changed FDD, 5MHz BW, Connected 8UEs, Xeon or Xeon-D

0

200

400

600

1.7 2.6 3.2

Processing time of 1 subframe

GHz

usec

Result of processing time when Bandwidth is changed FDD, Connected 8UEs, Xeon 2.6GHz CPU

BandwidthProcessing Time of

1Subframe

5MHz 406us

10MHz 662us

20MHzUnmeasurable(over 1000us)

0

200

400

600

800

1000

5 10 20

Processing time of 1 subframe

MHz

usec

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Evaluation with Various Hardware


PRIMERGYRX2540 M4

PRIMERGYRX2560 M2

OAI-EPCHSS

MME

SPGW

OAI-BBUL3/L2

/L1

RF Driver

Ubuntu Linux

Hardware (CPU)

OAI-BBUL3/L2

/L1

RF Driver

Ubuntu Linux

Hardware (CPU)

Hypervisor

ESPRIMO Q556 Intel miniPCNUC900

LIFEBOOKU938/S

LIFEBOOKU938/S

Intel miniPCNUC900

limeSDR mini

Examples of combinations evaluated in our environment

Proved that OAI has flexible.

USRP X310 USRP X310

USRP X310 USRP B210USRP X310BladeRF x115

w/ Hypervisor

w/o Hypervisor

OAI-EPCHSS

MME

SPGW

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Video

11 Copyright 2018 FUJITSU LIMITED

Challenges


Network Data Collection and Utilization

Verification of softwarization possibility


Softwarization

Operate the virtualized software LTE in the field

Network Data Collection and UtilizationVirtualization

STEP1

STEP2

Collection Analysis

Feedback

Collection Analysis

Feedback

DONE

INPROGRESS

Experiment system

Software LTE Antenna COTS UE

Internet

BBU/EPC

Local Service Server

Data Collection Server

RF Device(USRP)

LTE Server

Analysis & FeedbackImprove Service

13

Visualization of Collected Network Data


RNTI Num. of Connected UEs

DL Throughput UL Throughput

Amount of Retained DL Data

UL CQIDL CQIDL MCS

DL decoding rate

Amount of UL scheduling request

Num. of Control Messages

Acquisition of Operational data in the eNBAbout 40 points of data acquired from the eNB are displayed in real time by “Kibana”.Be able to monitor the radio condition, throughput etc of the UEs by the Web browser.

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Utilization Example of Network Data


Optimal radio resource scheduling by Network Data and AI STEP1 : Identify the content (video, web browsing, voice call, etc.)

STEP2 : Predict necessary radio resources for the user

UE1

Video

UE3

Voice

UE2

Web

time

UE1：Network control Data



ContentIdentification

Model

Predictive Model of Radio Resource

Video

Web

Voice

UE1:Resources

eNB

Collect Network Data Identify the Content Predict Radio Resource

Optimal Radio Resource Scheduling

UE2:Resources

UE3:Resources

15

Conclusion


Toward the Future of OAI and Community

Whether academic or commercial, the most important thing for software is software quality.

The source code is always stable in an easy-to-handle state

understandmodify operate

the state of being stable

Easy to handle

plus


Developers

Both Developers & Commercial Users are Necessary

CommercialUsers

Grow the OAI

Software Technically

Expandingthe use case of OAI

Both need to grow

New Features

New Requirements

17

Extra


The Number of Commits Trend (Last 1 Year)


0

500

1000

1500

2000

2500

3000

11/01 12/01 01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01

2,714

2017～2018

2016～2017

1,882

--all --no-merges Eurecom1664(61%)FUJITSU

262(10%)

--all --no-merges

Number of commits is up 40% compared to last year.

40%UP

3,000

2,000

1,000

11/1 10/1

19

The Number of Commits Trend (Last 1 Year)


0

500

1000

1500

2000

2500

3000

11/01 12/01 01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01

develop

All Branches

5G-NRNB-IoT

::

2,7143,000

976

2,000

1,000

11/1 10/1

All Branches

Commit for new projects such as 5G-NR, NB-IoT are greatly activated!

It is also important to keep the master/develop branch better!

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Documents

FUJITSU’s OAI activity of the year and the road ahead...Specified by one of the sub-specification of the MULTEFIRE sXGP Band 39(TDD) 1880 MHz 1920 MHz 1899.3 MHz sXGP 5MHz BW sXGP