ALU Small Cell Technology Overview

8/21/2019 ALU Small Cell Technology Overview

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COPYRIGHT © 2011 ALCATEL-LUCENT. ALL RIGHTS RESERVED. ALCATEL-LUCENT — INTERNAL PROPRIETARY — USE PURSUANT TO COMPANY INSTRUCTION

1 | FCC 3.5 GHz NPRM Workshop | MMB

Small Cell Technology Overview( and 3.5GHz Small Cell CBS Band)

Milind Buddhikot, Rob SoniMarch 13, 2013


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Source: Bell Labs modeling and forecasts

4x growth per user/month & 25x growth in aggregate wireless data traffic ove

Bandwidth Hungry Applications will Continue the Wireless Data Explosion

2010

M b p s / m o n t h / u s e r

Smartphone Device Profile

0

500

1,000

1,500

2,000

2,500

3,000

2011 2012 2013 2014 2015Messaging/voiceP2PAll video

Downloads/uploadsAudio streamingWeb browsingGaming

3,500

Pbytes/Month

0

2000

4000

6000

8000

10000

12000

14000

16000

1 2 3

2011 2012 2013 20

Worldwide Agg

Mobile Traf

25x growthover 5 years!

Goal: Improving capacity to support high QoE and lowering cost


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Focus of this

Options for increasing Wireless Capacity & Spectral Effici

Solving the equation requires AAA, Metro Cells/HetNets and CentralizeThe Essence of Alcatel-Lucent lightRadio

Cell Split Add CarriersCarrier

Aggregation

MIMO

(4Tx)

eICIC CoMP AAA

or

6 Sector

MetrocelHetNet

ExpensiveRequiresSpectrum


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Solving the 25x Capacity Problem

INCREMENTAL CAPACITY OPTIONS

LTE-A AAA Wi-Fi LTE SmallCells LTE

SMALL CELLS ARE NOW CRITICAL FOR ADDRESSING WIRELESS D


5/19COPYRIGHT © 2011 ALCATEL-LUCENT. ALL RIGHTS RESERVED.

ALCATEL-LUCENT — INTERNAL PROPRIETARY — USE PURSUANT TO COMPANY INSTRUCTION


Small Cells: Indoor, Outdoor – Anywhere?

Enterprise Femto

Home Cell

Metro Cell

Enterprise Femto

WIF

Distributed Antenna

3G/4G Macro

3G/

Better coverage, capacity and customer experience

Support new devices and services

Private vs. Public small cells


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ALCATEL-LUCENT METRO CELL PORTFOLIO

METRO CELLINDOOR V2

METRO CELLOUTDOOR V2

1 2

W-CDMAW-CDMA

250mW All-in-one

250mW All-in-one

Available in850 MHz1900 MHz

Available in850 MHz1900 MHz2100 MHz

3

METRO CELLINDOOR (MCI)

LTE

2 x 250 mW All-in-oneCube-based

Avail Date:Jun 2013 (B25)

Avail Date:Mar 2013 (B13)Sept 2013 (B17)

Common Metro DockGE= NowGPON = Q3 2013

Multi-standard

METRO CELL OUTDOOR (MCO)

LTE LTEW-CDMA

4 5 6 7

3x1W All-in-OneCube-basedWi-Fi AP option

2x1W All-in-oneCube-basedWi-Fi AP option

2x5W All-in-one

1W All-in-oneCube-basedWi-FI AP option

Avail Date:Mar 2013 (B1)Mar 2013 (B2)

Avail Date:Sept 2013 (B2)

Avail Date:Mar 2013 (B25)Sept 2013 (B2/B7)

Common Wi-FI APSept 2013

COVERING MULTIPLE TECHNOLOGIES AND DEPLOYMENT SCENARIO


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LTE METRO CELLS – WHERE TO USE THEM

PRODUCT

POWER

USE CASES

MAX ACTIVE USERS

2 x 5 W

MACRO EXTENSION

LARGE PUBLIC VENUES

RURAL AREAS

METRO CELL

OUTDOOR LTE

200

ME

OU

2 x 1 W

METRO CELL

OUTDOOR LTE

OUTDOOR HOTSPOTS

INDOOR HOTSPOTS FROMOUTDOORS

COVERAGE HOLE-FILL

64

METRO CELL

INDOOR LTE

2 X 250 mW

INDOOR HOTSPOTS

64


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lightRadio™ Family Concept

Integrated

Carrier-Grade

Wi-Fi

Access PointsBackhaul

Including Daisy Chaining

RF Module

WCDMA (IuH architecture)LTE (eNodeB architecture)Up to 5W EIRP

Directional AntennasMultiple band classes (w/ lightRadio cube)

MetroDock

GEGPONWi-FiDaisy chaining (cabled or Wi-Fi)Small Cell Router – for metro aggregationPoE+ injectorNLOSLOS microwave


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LightRadio™ Wi-Fi AP module

Dual-Band Dual-Concuaccess poin

- Supports carrier grade Wi-F- Simultaneous support of 2.4 /

(802.11 b/g/n, 802.11a/n)- output power for 2.4GHz and f

- up to 28dBm with integrated lo- up to 32dBm with integrated hi

- 20/40 MHz bandwidth- 16 SSIDs (8 per frequency ban- High capacity, up to 256 conne- Integrated directive antennas

MIMO- Backhauled and powered via M

module- Passive cooling- Seamless Wi-Fi / Cellular expe

MCO WI-FI AP Module

FRONT BACK


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LTE Carrier Aggregation (CA) Readiness

MCO v1.1 LTE module can be operated

- as MCO using local modem

- as RRH connected to an external modem

MCO LTE 2x1W

Typical application: enablement of CA

- initial deployment all-in-one using on-box modem

-

re-configuration into RRH for CAoperation

Other application: enablement of BBU centralizedoperation

- to benefit from Rel11+ COMP and other high capacitfeatures

f1 f2

GEGE

MCO

B4 (AWS)

R

M

R

M


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Deployment of Small Cells: Shared Carrier DeploymentPlanned vs. Uniform

•

Field studies show traffic in macro cells isoften spatially clustered

- Placing the metro cells within the hotspot results inhigh amount of traffic offload and largethroughput gains

- ~50% macro cells are amenable to >50%offload with Metros

- ~25% cells allow 25%-50% offload

• Small cell effectiveness dependskey hotspot characteristics:

• Distance from macro – greatmore effective small cells are

• Amount of traffic in each hogreater, the better

• Number of hotspots – too fewmuch offloading, too many will

Metro interference

Shared Carrier: Same carrier channel used in macro and smallleading to interference interactions

Shared Carrier approach provides Lower Economic Return, But Still 30 - 3Is Offloaded

• Offers effective capacity and coverage for some use cases (indoor locations, etc.

• Only option for operators with low-spectrum holdings


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12

Metro Cell Coverage Area in a Shared Carrier Deploymen

• The “exclusion zone

region where the mcoverage is so smaldoes not provide uscapacity offload frommacro

High efficiency zone

Lowefficiencyzone

ModerateEfficiencyZone

Exclusion Zone

Field results and simulation data show all locations are not suitable for metro cell

When the macro signal is very strong at a particular site, it causes two issues

- Shrinks metro cell coverage footprint inefficient at macro offloading traffic

- High uplink noise rise at the metro cell saturation due to dynamic range of me


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Deployment of Small Cells: Dedicated Carrier for Small Ce

Dedicate

Indep(orthogona

used in mac

ce

Two carriers from non-contiguous or separate band class

700 MHz AWS

macro metro

Or Two carriers created by splitting one contiguous carrier

700 MHz

macro metro

700 MHz

700 MHz

5 MHz5 MHz

10 MHz


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14

Why Consider a Dedicated Carrier for Metro Cells?

• Without intfrom macrocarrier metcover a muregardless to the mac

• Coverage through cepriorities a

• High efficienoffloading wfor exclusio

• But… are wespectrum wReduces speefficiency

Exclusionzone

Lowefficiency

zone

Moderateefficiency

zone

Highefficiency

zone

Coverage area of metro cellsdeployed with dedicated carrier

Coverage area of metro cellsdeployed with shared carrier

• Optimum amount of traffic offload (bias) increases with increasingnumber of metro cells per macro (result of load balancing withlarger # of metros)

• Clear gains in Cell Border Throughput (CBTP) fromdedicated carrier


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More advanced techniques

• eICIC for shared carrierdeployment

• Almost Blank Sub-frames (ABS)

• Interference Cancellation (both UE andNetwork based solutions)

A B S

Macro Schedule CellInner

Metrocell

Basic CA-based ICIC CA-

Basic multicarrier Mult

• Multicarrier approach: Metro cell uses twocomponent carriers (CC A and CC B), macro uses

just CC A alone (basic scheme) or CC A full powerand CC B with reduced power (soft-reuse scheme)

- With or Without carrier aggregation

Shared Carrier

Single Carrier

Shared Carrier


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3.5 GHz and Small Cells in Cellular Systems

• Deployment in clutter at 8-20 feet• Obstacles, foliage, rapid change in propagatio

Line-of-Sight (LOS) at 30/60/80 GHz microwaMicrowave backhaul products are not suitable

• Non LOS (NLOS) or near-LOS (nLOS) backhaneeds sub-6 GHz spectrum

• 3.5 GHz can be ideal suited

• Dedicated carrier small cell systemscan leverage priority access channelsin 3.5 GHz

Small Cell Access Small Cell Backhau


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3.5 GHz and Fixed Wireless Access Using Small Cells

• Fixed broadband over copper pairs can be augmented with 3.5 GHz Fixed Wireles

• Multi-antenna systems at 3.5 GHz can be small and efficient

• Effectively leverage small cell technology

3.5 GHz

Fiber

DSL

DSL

DSL

House 1

Sector 1

Sector 2

House 2

Fib

DistributionPoint

Augmented Local Loop “Last 100 m”


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WhiteCells: High Capacity Dual-Technology Small Cells (Resear

Location 1

Locatio

n 2

Location 5

Location 3

Location 4

Macro Cell

Internet

Femto

BS

1

2

WhiteCells

End-user Device

Femto/Metro complexlocalized spectrum sensors

3

Cognitive SpectrumSensor and Server

(Single or Multi-operator)

Sensor samples@ Location 5

T1 T2

Spatial mapof SensorSamples

Stable

interface

Whitespac

interface

Virtual network

interface

TCP/IP

Appl icat ion s

WhiteCell

Client

Ethernet,DSL, Cable, FTTH

Software

router

Stable

interface

Whitespace

interface

SpectrSens

WhiteCell

basestation

Internet

DTV700 MHz2.1, 2.6 GHz


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Documents

ALU Small Cell Technology Overview