Small Cells - a part of future mobile networks RevB.pdf

Slide title

70 pt

CAPITALS

Slide subtitle

minimum 30 pt

Small Cells - a part of future mobile networks IDA Tele – february 11th 2016

Bo Brandt Lassen Ericsson Denmark

Slide title

44 pt

Text and bullet level 1

minimum 24 pt

Bullets level 2-5

minimum 20 pt

Characters for Embedded font: !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~¡¢£¤¥¦§¨©ª«¬®¯°±²³´¶·¸¹º»¼½ÀÁÂÃÄÅÆÇÈËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂăąĆćĊċČĎďĐđĒĖėĘęĚěĞğĠġĢģĪīĮįİıĶķĹĺĻļĽľŁłŃńŅņŇňŌŐőŒœŔŕŖŗŘřŚśŞşŠšŢţŤťŪūŮůŰűŲųŴŵŶŷŸŹźŻżŽžƒȘșˆˇ˘˙˚˛˜˝ẀẁẃẄẅỲỳ–—‘’‚“”„†‡•…‰‹›⁄€™ĀĀĂĂĄĄĆĆĊĊČČĎĎĐĐĒĒĖĖĘĘĚĚĞĞĠĠĢĢĪĪĮĮİĶĶĹĹĻĻĽĽŃŃŅŅŇŇŌŌŐŐŔŔŖŖŘŘŚŚŞŞŢŢŤŤŪŪŮŮŰŰŲŲŴŴŶŶŹŹŻŻȘș−≤≥fifl

ΆΈΉΊΌΎΏΐΑΒΓΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦΧΨΪΫΆΈΉΊΰαβγδεζηθικλνξορςΣΤΥΦΧΨΩΪΫΌΎΏ

ЁЂЃЄЅІЇЈЉЊЋЌЎЏАБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯАБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯЁЂЃЄЅІЇЈЉЊЋЌЎЏѢѢѲѲѴѴҐҐәǽẀẁẂẃẄẅỲỳ№

Do not add objects or text in the

footer area

Small Cells - a part of future mobile networks | Commercial in confidence | 2016-02-11 | Page 2

› Introduction

› When and how to deploy small cells ?

– Spectrum Allocation

– Cell Coordination and C-RAN

– Simulation Models and Some High Level Results

› The Role of small cells in a 5G perspective

– New Frequency Bands

– Techniques Improving Small Cell Performance

– License Assisted Access (LAA) – LTE Domination

› An Overview of Ericsson’s Solutions Targeting Small Cells

– The Cost Efficient Radio Dot Solution

– Pico Solutions integrating Cellular and WiFi

– Radio Solutions in 5G

Agenda


Slide title

44 pt


minimum 24 pt

Bullets level 2-5

minimum 20 pt





footer area


A High Level 5-Year Outlook

In 2021:

› 9.1 billion mobile subscriptions

› 4.1 billion LTE subscriptions

› 3.2 billion WCDMA/HSPA subscriptions

› 5G will be commercially deployed

In 2021:

› A total of more than 30 Billion Connected

Devices

› Total Monthly Mobile Broadband Traffic

Exceeding 50 ExaBytes


Slide title

44 pt


minimum 24 pt

Bullets level 2-5

minimum 20 pt





footer area


TIME

~30GHz

~10GHz

SPECTRUM

NX GSM

HSPA

LTE

5G

NX CARRIER

AGGREGATION

Additional bands

Carrier Aggregation and New Spectrum For LTE Evolution and 5G


Slide title

44 pt


minimum 24 pt

Bullets level 2-5

minimum 20 pt





footer area


Network Capacity Evolution Cost Efficient Approach

Very high

data rates

Very high capacity

Higher

data rates

Higher capacity

DENSIFY MACRO

Additional sites

ADD SMALL CELLS

Macro + ”Small Cells” providing very

high capacity and very high data rates

IMPROVE MACRO

Enhanced macro site with extended

functionality providing higher capacity

and higher data rates


Slide title

44 pt


minimum 24 pt

Bullets level 2-5

minimum 20 pt





footer area


Uncoordinated Cells Tight Coordination Tightest Coordination

Add 9 Cells for 2X Capacity Add 5 Cells for 2X Capacity Add 3 Cells for 2X Capacity

TEXT Good User Experience

50% Reduced TCO

Great User Experience

70% Reduced TCO

Basic Mobility Full Mobility, distributed

baseband

Full Mobility, common

baseband

Ex.: Femto cells

Ex.: Soft handover Ex.: CoMP, Combined Cells

Limited User Experience

High TCO

coordinated network benefits


Slide title

44 pt


minimum 24 pt

Bullets level 2-5

minimum 20 pt





footer area


› A city environment is built based on a set of

standard models

› Adjustments are made to reflect the target

area as closely as possible

Simulation Scenario Input Building The Specific Model/Scenario

› Macro and Micro Sites are placed

to reflect the wanted scenario

› Subscriber/traffic density is

distributed outdoor and indoor Small Cells - a part of future mobile networks | Commercial in confidence | 2016-02-11 | Page 7

Slide title

44 pt


minimum 24 pt

Bullets level 2-5

minimum 20 pt





footer area


Scenario Overview

20 MHz

15 MHz

5 MHz

10 MHz

1.8 GHz FDD

800 MHz FDD

2.6 GHz FDD

Total bandwidth: 50MHz

Macro layer Micro layer

Carr

ier

ag

gre

gati

on

fo

r D

L


10 MHz 2.6 GHz FDD

2.6 GHz TDD

20 MHz

15 MHz

5 MHz

1.8 GHz FDD

800 MHz FDD


Macro layer Micro layer

Carr

ier

ag

gre

gati

on

fo

r D

L


10 MHz 2.6 GHz FDD

2.6 GHz TDD

Shared Spectrum Dedicated Spectrum

Both scenarios above are simulated with and without cell

coordination and with low and high small cell concentration

(20 cells/km2 respectively 60 cells per km2)


Slide title

44 pt


minimum 24 pt

Bullets level 2-5

minimum 20 pt





footer area


Key results Available capacity per Subscriber in Simulated Network 20 small cells per km2

Uncoordinated Coordinated Uncoordinated Coordinated 0

20

40

60

80

100

120

140

160

User

Tra

ffic

Vo

lum

e [

GB

/user/

mo

nth

]

User Traffic Volume at 10 Mbps 5th%-ile User throughput

64 GB/user/month

107 GB/user/month

50 GB/user/month

90 GB/user/month

Add TDD spectrum and dedicate

2.6 GHz FDD on Micros

Add TDD spectrum and re-use

2.6 GHz FDD on all layers


Slide title

44 pt


minimum 24 pt

Bullets level 2-5

minimum 20 pt





footer area


Key results Available capacity per Subscriber in Simulated Network 60 small cells per km2

Uncoordinated Coordinated Uncoordinated Coordinated 0

20

40

60

80

100

120

140

160

User

Tra

ffic

Vo

lum

e [

GB

/user/

mo

nth

]

User Traffic Volume at 10 Mbps 5th%-ile User throughput

73 GB/user/month

120 GB/user/month

65 GB/user/month

130 GB/user/month

Add TDD spectrum and dedicate

2.6 GHz FDD on Micros

Add TDD spectrum and re-use

2.6 GHz FDD on all layers


Slide title

44 pt


minimum 24 pt

Bullets level 2-5

minimum 20 pt





footer area


Key Results High Level Recommendations

12% Gain from Sharing Spectrum.

Stragety should be evaluated against

additional macro site costs


Stragety should be evaluated against

additional macro site costs


Capacity Gains make sharing of 2600

FDD spectrum the best solution

~0% Gain from Sharing Spectrum.

Dedicated spectrum for micro layer id

the recommended solution

Low Micro Cell

Penetration

High Micro Cell

Penetration

Uncoordinated

Cells

Coordinated Cells


Slide title

44 pt


minimum 24 pt

Bullets level 2-5

minimum 20 pt





footer area


Carrier

Aggregation

Leverage Multi Band Increasing Downlink Coverage for High Frequency Bands

800 MHz

1800 MHz Carrier

Aggregation

2600 MHz (TDD/FDD)

Increased value of high-band spectrum. FDD and/or TDD


Slide title

44 pt


minimum 24 pt

Bullets level 2-5

minimum 20 pt





footer area


› The possibility to utilize frequency

resources/carriers from different sites

simultaneously

› Implies the possibility of aggregating

carriers from macro sites and small cells

› In this way an uplink connection on a

small cell can draw downlink macro site

resources deep into buildings

› Multi-point coordination features further

makes it possible to use macro and small

cell resources on the same

frequency/carrier depending on feasibility

Multi Site Carrier Aggregation Dual Connectivity

Band A

Band B Band B

t

f

t

f


Slide title

44 pt


minimum 24 pt

Bullets level 2-5

minimum 20 pt





footer area


Rbs 6402 Indoor pico cell

“Small cells done right” Ken Rehbehn, 451 Research Mobility Team [Yankee Group]


Slide title

44 pt


minimum 24 pt

Bullets level 2-5

minimum 20 pt





footer area


Performance › 300 Mbps LTE Carrier aggregation

› 2 LTE Carriers 5,10 or 20 MHz

› 4x250 mW output power

› Support for 40 MHz 5GHz/LAA SDL

Flexibility › Remote selection of FDD band

› Licensed FDD, LAA and Wi-Fi simultaneous

operation

› HW prepared for 20+40 MHz CA

Easy to deploy › Small All-in-One solution

› Data & Power over Ethernet and SON features.

› Network-live in 10 min.

Pico Rbs 6402 Including LAA Support

B1, B3,B7

B8,B20,B5

Planned European 3GPP Modules

High band World/Europe

Low band World/Europe

5 GHz LAA 5 GHz License Assisted

3GPP Module 1

3GPP Module 2

WiFi

RBS 6402


Slide title

44 pt


minimum 24 pt

Bullets level 2-5

minimum 20 pt





footer area


Adding Unlicensed Spectrum Implementation Of License Assisted Access (LAA)

When Wi-Fi traffic increases in the 5 GHz band,

the LTE throughput ramps down

› Current solutions available for adding one

or more LTE carriers in the unlicensed 5

GHz band

› Integrated small cell solutions support both

LTE and WiFi communication in the

unlicensed bands

› License Assisted Access (LAA) will ensure

fair sharing between Wi-Fi and LTE users

in the unlicensed bands


Slide title

44 pt


minimum 24 pt

Bullets level 2-5

minimum 20 pt





footer area


Ericsson Radio Dot System The Ideal In-Office Capacity Solution

Ultra compact

Weight

300g

One Network

70% Up

to

faster deployment

Up to

60% reduced cost

in cabling

› Ultra compact

– Minimal visual impact

– Weight: 300 g (10 oz.)

› Scalable Radio Extension

– Integral Part of The Radio Network

– Full Coordination with Macro Layer

– Scalable for Coverage and Capacity

– Up to 70% faster deployment

› Standard LAN cabling

– Radio and Power over CAT 6/7

– Possibility to re-use existing cables

– Up to 60% reduced cost in cabling

Slide title

44 pt


minimum 24 pt

Bullets level 2-5

minimum 20 pt





footer area


Throughput DL, offered load 21 Mbps

0 Mbps

0.5 Mbps

1 Mbps

5 Mbps

10 Mbps

30 Mbps

Throughput DL, offered load 25 Mbps

GO

OD

B

AD

Mbps

5

10

>30

1

0.5

0

Macro only

Radio Dot System

Inside building Surrounding

integration with macro network Benefits


Slide title

44 pt


minimum 24 pt

Bullets level 2-5

minimum 20 pt





footer area


› Implementations based on multi path radios

implementing tens or hundreds of separate

propagation paths

› Facilitating Multi-path MIMO and especially high

accuracy beamforming improving coverage at

high frequencies

› Current trial performance KPI’s

– 10 Gbps Downlink/Uplink

user data rates

– 5 ms Round Trip Times

5G Multi-Path Radio Systems


Slide title

44 pt


minimum 24 pt

Bullets level 2-5

minimum 20 pt





footer area


Documents

Small Cells - a part of future mobile networks RevB.pdf