5G and Wireless Measurements 20140320 v4 - CAIDA · OFDMA/SCFDMA 4G 100M-1Gbps Experiments Super3G...

DOCOMO Innovations, Inc. confidential

5G and Wireless Measurements

DOCOMO Innovations, Inc.

3/24/2014 © 2014 DOCOMO Innovations, Inc. All rights reserved. 1


History

3/24/2014 © 2014 DOCOMO Innovations, Inc. All rights reserved.2

2000s2000 2005 2010

LTE/LTE‐Advanced

4GOFDMA/SCFDMA100M-1Gbps Experiments

Super3G Concept3G

1980 1985 1990

1GAnalogue Cellular

TDMAConcept

GSM/PDC/TDMA

2GPaper by Dr. KinoshitaICC’81 and IEEE Trans. VT, 1982

1980s

2010s2010 2015 2020

Now what?4G 5G?

1990s1990

2G1995 2000

WCDMA2Mbps Experiments 3G

WCDMA/CDMA2000

10Gbps Experiments at 11GHz

CDMAconcept


It’s time to think about 5G


2000s2000 2005 2010

LTE/LTE‐Advanced

4GOFDMA/SCFDMA100M-1Gbps Experiments

Super3G Concept3G

1980 1985 1990

1GAnalogue Cellular

TDMAConcept

GSM/PDC/TDMA

2GPaper by Dr. KinoshitaICC’81 and IEEE Trans. VT, 1982

1980s

2010s2010 2015 2020

Now4G 5G?

1990s1990

2G1995 2000

WCDMA2Mbps Experiments 3G

WCDMA/CDMA2000

10Gbps Experiments at 11GHz

CDMAconcept


Future Radio Access towards 5G

1000x capacity

10-100x data rates

Our vision of 1000x capacity and 10-100x data rates will bring dramatic UXimprovement for users in 2020.

in 2020



Keys for 5G


Frequency800 MHz 2 GHz 3 GHz 10 GHz 60 GHz

BUT, No one knows how to use higher frequency bands as Cellular

How should we use Higher Frequency Bands???


FRA (Future Radio Access): Combined usage of lower andhigher frequency bands

Concept – DOCOMO’s 5G

Existing cellular bands(high power density for coverage)

Higher frequency bands(wider bandwidth for high data rate)

Frequency

Very wide(e.g. > 3GHz)

Super wide(e.g. > 10GHz)

DOCOMO’s 5G ConceptFurther cellular enhancements

Exploitation of higher frequency bands



In Summary

7

Spectrum Efficiency

Current CapacitySpectrum Extension

Controller

TRx

TRx

TRx

TRx

TRx

TRx

TRx

TRx

Massive MIMO

700MHz~Higher frequency

bands

F

Small Cells (Phantom Cells)© 2014 DOCOMO Innovations, Inc. All rights reserved.3/24/2014


From a Deployment point of view


Future Small Cell NW

Conventional Cellular NW

BS

Massive MIMO

No one knows where/ how future small cells/ massive MIMO cells should be deployed in 5G NW.

Operation cost would increase as the number of cells increases.


That is,


Deployments would be more and more important in 5G NW.

Conventional wireless measurements would not be good enough for 5G deployments.

Future Wireless Measurements should be targeted to 5G NW and 5G deployments.


BACKUP SLIDES



C-plane: Macro cell maintains good connectivity and mobility using lower frequency bands

U-plane: Small cell provides higher throughput and more flexible/cost-energy efficient operations using higher/wider frequency bands

Existing cellular bands

Higher frequency bands

Macro cell

Phantom cell

[1] NTT DOCOMO, 3GPP RWS-120010, June 2012.[2] H. Ishii et al., IEEE Globecom 2012 Workshop, Dec. 2012.

Phantom Cell ConceptPhantom Cell Concept: DOCOMO proposed this architecture to utilizehigher frequency bands through splitting macro and small cells for C-planeand U-plane in different frequency bands [1, 2]



Massive MIMO (Multiple-Input Multiple-Output)Massive MIMO: Beamforming using massive antenna elements inhigher frequency band for gain and capacity improvement

– 4G LTE (today) : 2 antennas (at device) x 2 antennas (at base station)– 5G : hundreds of antennas at base station!

Antenna element spacing

(d)

3.5 GHz(= 8.6

cm)

10 GHz(= 3 cm)

20 GHz(= 1.5

cm)0.5 16 169 6760.7 9 81 361

5G Massive MIMOMigration

：：：：

20cm

20cm

e.g. Massive MIMO 2D antenna configuration

d

Cell range extension by beamforming gain

Improved spectrum efficiency with (multi-user) spatial multiplexing


5G and Wireless Measurements 20140320 v4 - CAIDA · OFDMA/SCFDMA 4G 100M-1Gbps Experiments Super3G...

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