THE 5G JOURNEY - EuCNC

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CAPITALS

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THE 5G JOURNEY - towards the ITU WRCs

EUCNC, Paris

June 2015

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60 % video will generate

more than half of

mobile data traffic

more people will watch

streamed on-demand

video than linear TV

2014 / 2015 … 2020

global mobile

broadband

coverage

>70 %

of the global pop will have

a mobile phone, 3.7 billion

LTE subscriptions

>90 % of mobile data

traffic will be from

smartphones

80 % 85 % of all subscriptions

will be for mobile

broadband

10 x growth in

smartphone

traffic

9.2 B mobile

subscriptions

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Latin America (MHz)

Base: 850, 1900

New: 1700, 2600

2015: APT700

MEA (MHz)

Base: 900, 1800, 2100

New: 2600, CEPT800

2016: APT700

APAC (MHz)

Base: 850, 900, 2100

New: 1800, 2300, 2600

2015: APT700

Japan (MHz)

Base: 850, J1500, 1800, 2100

New: J2600

2015: APT700

Europa (MHz)

Base: 900, 1800, 2100, 2600

New: CEPT800

2016: 1500, 2300, 3500

North America (MHz)

Base: 850, 1900, 2600, US700, 1700

2016: 600, 3500

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WP5D (IMT group of ITU-R)

Technology trends

Vision beyond 2020, etc.

4G

5G

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›

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Propagation losses

100

101

5

10

15

20

25

30

35

40

45

Bu

ild

ing

pen

etr

ati

on

lo

ss [

dB

]

Frequency [GHz]

(A) Old Building (30% St. glass)

(B) New Building (70% IRR glass)

Buildings

30 % standard glass

70 % IRR (infrared

reflective) glass

6 GHz 30 GHz

Std. glass ~ 5 dB

IRR glass ~ 7.5 dB

28 GHz 10 GHz

~22 dB

necessary to

compensate

for increasing

path loss, as

a function of

frequencies

beamforming

(BF) using

more

antennas

densifying

the network

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~x6

x1

20 10 15 25 30

Frequency (GHz)

5

10

20

30

Relative site density

~x22

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The antenna gain

increases with

frequency,

but, extremely high

antenna gains may

not easily be

achievable

– angular spread

in the channel

– mobility aspects:

beam finding,

beam steering

Antenna gain and beams rough estimations For a fixed sized service area

Utilizing the antenna gain requires beam steering at both Tx and Rx

but, the number of beams needed to cover area of interest increases with frequency

– Increased complexity and cost

– mobility presents increased challenge

Antenna gain

as a function of

frequency

Number of beams

as a function of

frequency

20 / 30 GHz

30 dBi

20 dBi

0 dBi

20 / 30 GHz

BS

MS

Antenna gain Number of beams

100

30

1

BS

MS

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For given cell sizes and scenarios, the

received RF power can be maintained

over a certain frequency range

– the boundary appears to be somewhere

below 20 GHz

– above this, the received RF power rapidly

become challenging to maintain

Received RF power - frequency

Downlink Uplink

Bandwidths 1 GHz

100 MHz

100 MHz

10 MHz

Noise figure 7 dB 6 dB

Noise powers -77 dBm

-87 dBm

-88 dBm

-98 dBm

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Frequency bands currently allocated to the mobile service on a

primary basis in the three ITU Regions

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5G spectrum in conclusion

ITU WRC-15 AI 10 (an agenda item at WRC-19 for 5G

spectrum)

an agenda item is indeed needed

• it looks good for the future mobile broadband consumers

there is a cloud in the sky

• too much focus on the on the millimetric waves

focus on the centimetric range (6 - 30 GHz) needed

• for the early deployments for 5G

• further research is needed on solutions for the physical

and technical challenges in the higher millimetric ranges

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THE 5G JOURNEY - EuCNC