1

Linkem 4G Network and Future Network Planning

Linkem - The 5th TD-LTE Technology and Spectrum Workshop 2015

2

Italy Indicator (World Bank Data)

Linkem - The 5th TD-LTE Technology and Spectrum Workshop 2015

00,20,40,60,811,21,41,61,82

56

57

58

59

60

61

62

% G

row

th

Mili

on

Population

Population, total

Population growth (annual %)

-6

-5

-4

-3

-2

-1

0

1

2

3

Italy GDP Growth %

80

80,5

81

81,5

82

82,5

Life expectancy at birth, total (years)

010203040506070

% T

ota

l

Population ages 0-14 (% of total)

Population ages 15-64 (% of total)

Population ages 65 and above (% of total)

(World Bank Data)

3

Digital Life in Italy (World Bank Data)

Linkem - The 5th TD-LTE Technology and Spectrum Workshop 2015

0

10

20

30

40

50

60

70

Internet users (per 100 people)

0

20

40

60

80

100

120

Mobile cellular subscriptions (Mil.)

20

20,5

21

21,5

22

22,5

23

Fixed telephone subscriptions (Mil.)

0

2

4

6

8

10

12

14

16

Fixed (wired) broadband subscriptions (Mil.)

23,8Mil Household, 57% penetration

4

Digital User Experience

Linkem - The 5th TD-LTE Technology and Spectrum Workshop 2015

60% Mobile users have a Smartphone 65% is a low range device

An inclusive digital Society requires affordable and inclusive residential services

5

Inclusive & Affordable Broadband Internet Service

Linkem - The 5th TD-LTE Technology and Spectrum Workshop 2015

6

From WiMAX to LTE 3 Steps Plan

Linkem - The 5th TD-LTE Technology and Spectrum Workshop 2015

Dual Mode WiMAX +Cat.4 LTE

WiMAX (2013) WiMAX+LTE A (Now) 2x20Mhz LTE A (2016)

Dual Mode WiMAX +Cat.4 LTE Dual Mode

WiMAX +Cat.4 LTE

WiMAX WiMAX

Cat.6 LTE (4Q15)

Eventually up to 30M/3M Unlimited Traffic

Target> 2bit/Hz

Nx20Mhz Channels, Frequency Reuse 1

7

Deterministic Capacity Planning in 3,5Ghz

• WiMAX (In service From 2008)

o 10Mhz Channel Bandwidth o Frame 32:15 o Reuse from 4 to 8 o # users load balancing o Result: 1,7 bit/Hz

• LTE B42 (in service from Dec.14)

o 20Mhz 10Mhz Channel Bandwidth

o Frame 2 Subframe 5 o Reuse 1 o Current result 1,2 bit/Hz o Planned result: 1,8 bit/H

• Subframe 7: +20% • 50% Cat6, 2x20 CA: +30%

o Target >2 bit/Hz • More Fiber (less latency) • DL CoMP • TM7/TM8

Linkem - The 5th TD-LTE Technology and Spectrum Workshop 2015

0,00

10,00

20,00

30,00

40,00

50,00

60,00

70,00

80,00

90,00

100,00D

L A

ll Zo

ne

Occ

up

ancy

Rat

e (%

)

Mbps

WiMAX Carrier DL Average Throughput (Mbps)

y = 4,8711x

0,00

10,00

20,00

30,00

40,00

50,00

60,00

70,00

80,00

90,00

100,00

110,00

DL

Uti

lizat

ion

rat

e (%

)

Mbps

LTE Carrier DL Average Throughput (Mbps)

*All Carriers, all 15’ Average at Peak Time Operational Points

8

Traffic & Performances Challenge

Linkem - The 5th TD-LTE Technology and Spectrum Workshop 2015

9

Cat.4 Cat.6

Terminals

Ecosystem Evolution

Linkem - The 5th TD-LTE Technology and Spectrum Workshop 2015

Today Tomorrow No RF Loss Facing Massive MIMO

processing requirement

4 Layer DL MIMO Up to 4 x20 CA UL CA, UL MIMO

Centralized RAN

Base Band

Core

Active Antenna 2N

Relaxed fronthaul

End to End 5 QoS levels driven by application

Coax

Fiber

BackhaulingFiber, MW, Cupper

tens millisec latencyAntenna 4x

Radio Amplifier

Base Band & Backhual

Core

Networks

Cat.12

Rx

Rx

Tx

Rx

Rx

Tx

Rx

Rx

Tx

Tx

Rx

Rx

Rx

Rx

Rx

Rx

Rx

Rx

10

Thanks for the opportunity and for the attention

Linkem - The 5th TD-LTE Technology and Spectrum Workshop 2015

Rino Buccio CTO