fujitsu’s oai activity of the year and the road ahead...specified by one of the sub-specification...
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Copyright 2018 FUJITSU LIMITED
FUJITSU’s OAI activity of the year and the road ahead
13th Dec., 2018Masayuki HARADA, FUJITSU Limited
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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
Copyright 2018 FUJITSU LIMITED2
FUJITSU Activity since Oct. 2017
Copyright 2018 FUJITSU LIMITED
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)
Copyright 2018 FUJITSU LIMITED
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
Tested Tested Tested
Tested Tested Tested Implemented
Number of UEs ↑ (256UEs w/ Bw5MHz)PerformanceImplemented
sXGP / O&M (Network Data Collection)OthersImplemented
Implementing
Implementing
Implementing
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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)
Copyright 2018 FUJITSU LIMITED
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
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Activity toward the road ahead
Copyright 2018 FUJITSU LIMITED6
Expectations for Private LTE
The development of standards for Private LTE is proceeding
Copyright 2018 FUJITSU LIMITED
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
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Activities for commercial
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Evaluation with Various CPU1
Evaluation with Various Hardware2
Video3
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Evaluation with Various CPU
Copyright 2018 FUJITSU LIMITED
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
Copyright 2018 FUJITSU LIMITED
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
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Network Data Collection and Utilization
Verification of softwarization possibility
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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
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Visualization of Collected Network Data
Copyright 2018 FUJITSU LIMITED
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
Copyright 2018 FUJITSU LIMITED
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
UE2:Network control Data
UE3: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
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Conclusion
Copyright 2018 FUJITSU LIMITED16
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
Copyright 2018 FUJITSU LIMITED
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
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Extra
Copyright 2018 FUJITSU LIMITED18
The Number of Commits Trend (Last 1 Year)
Copyright 2018 FUJITSU LIMITED
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
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The Number of Commits Trend (Last 1 Year)
Copyright 2018 FUJITSU LIMITED
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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