LTE World Summit 2012 Day 1 T2 Niri NEC

High Quality, High Capacity and

Cost Effective Wireless Broadband

LTE World Summit 2012

23rd- 24th May 2012, Barcelona

NEC Europe

Prof. Shahram G Niri Director of Global LTE/SAE Strategy & Solution

© NEC Corporation 2012 Page 2

Towards Future Mobile Broadband

Traffi

c

Revenue

Gap

Time

Serv

ice

C

ost

Ca

pa

city

Networks to improve in intelligence, flexibility,

automation, resilience, efficiency, capacity, speed,

and latency YET at lower delivery cost

© NEC Corporation 2012

More mobile broadband users

More connected devices, smartphones,

PDAs, enabled laptops & M2M

More services and applications, social NW,

m commerce, internet mobility

More bandwidth hungry applications, video

centric

Subscribers more than ever demanding

User satisfaction more than even important

Mobile traffic likely to increase (1000 fold

every 10 years)

Revenue flattens


Small Cells - Big Capacity and Cost Effective

Page 3 Page 3

0

1000

2000

3000

4000

5000

6000

7000

8000

2010 2011 2012 2013 2014 2015

Petabytes Per Month

50%CAGR

100% CAGR

x10

x32

1

2

3

4

Technical Advances

Off-Loads

Architecture & Topology

X3

X1.5

X2

More

Spectrum > X10

Up to 32 times (2010-2015), Up to 1000 times (2010-2020)

The volume of the capacity increase and the speed of

upgrade are key challenges

A continuous challenge to stay ahead of traffic increase

Off-load will be one of the solutions help to cope with

capacity demand

Frequency reuse a key to keep up with exponential

increase of traffic in the future with limited spectrum

Home

Zone

Enterprise /

Hot Spots Hot

Zone

Pico/Micro Femto

Small Cells Solutions - Femto to Micro

~ X1000



2G/3G

LTE Coverage Layer

LTE Capacity Layer

LTE pico/microLTE pico/micro

Femtocell/WiFiFemtocell

Enterprise Residential Public

Femtocell/WiFi

< 1W

>1W

< 5W

Ind

oo

r O

utd

oo

r

Page 4

Heterogeneous network

Coverage Layer (lower frequency) +

Capacity Layer (higher frequency and

small cells)

Small Cell benefits include:

Big capacity

High performance

Easier operation

Faster deployment

Low TCO

New services

Additional revenue

Challenges include:

Interference

Resource management

Multi vendor SON & management

Backhaul

Mind Set Change!

LTE Small Cell & Het-Net

The small cell solutions will be key element of a sustainable

mobile broadband business


Dense Urban

Macro Micro

Tx power 40W 8W

Antenna Height 30 meters 10 meters

Spectrum 2.6GHz (10MHz) 2.6GHz (10MHz)

Sectorization 3-sectors OMNI

Micro ISD=200m Macro ISD=500m 3-sectors

VS

Performance, Small Cells

3.3x capacity”

Page 5

3.3x higher system throughput

2x faster average user data rate @ 100Mbps/km2

Far better cell edge/indoor performance

2x faster!

3.3x capacity


Macro Only Micro/Macro ratio =2

Micro/Macro ratio =5


CAPEX and OPEX for Similar Capacity

CAPEX

OPEX

0

0.2

0.4

0.6

0.8

1

0

0.2

0.4

0.6

0.8

1




System Throughput

Downlink

Uplink

0

0.2

0.4

0.6

0.8

1

0.0

0.2

0.4

0.6

0.8

1.0




User Data Rate

Downlink

Uplink

Performance, Small Cells in Het-Net

Macro only Het-Net: Small cell & Macro (Up to Micro/Macro ratio =10 )

Macro eNB

3 Sector

Micro eNB

1 Sector (Omni)

Macro Cell

Micro Cell

4x 6x 7x

9x 4x

up to 75% less CAPEX compared to

traditional Macro only approach

up to 4 times downlink and 9 times

uplink user data rate improvement

up to 6-7 times system throughput

increased by Het-Net

Page 6


LTE Coverage Layer

800MHz/1800MHz/2600MHz

LTE Capacity Layer Small Cells 1800MHz/2600MHz/3500MHz

GW

EPC

Management

System

SON

Server

Multiple

technologies Multiple tx

power

Multiple form

factors

Spectrum

Multi-vendor

Multiple

Configuration

Het-Net Building Blocks Future Het-Net outlook: e.g. Europe

SON

Server

Macro cells and small cells at the same frequency

Macro cells and small cells at different frequency

HO, Load Balancing & Mobility Management

All small cells (Femto & Pico/Micro) connected to GW

Femto only connected to Femto GW – Pico/Micro connected directly to ePC

SON: Centralised, Distributed, Hybrid

Multi vendor SON

Interference

Radio Resource

Management

Coordination &

Management

Het-Net Challenges

SON & Het-Net

Architecture


Multi-Vendor SON in Het-Net

Hybrid Architecture

SON functions are placed at the best suited

position for each use case

NEC’s eNB executes SON-related

measurements and short-term parameter

updates, such as load balancing

NEC’s SON server executes statistical

analysis, long-term parameter updates and

provide interwork function with other vendor’s

NM-level SON over Itf-N

Macro eNB

X2

Itf-N Macro

EMS

Macro vendor’s

NMS

Page 8

NEC’s

EMS NEC

SON

Server

X2

Het-Net is a new term for 3GPP HCS

Het-Net is mainly used when there are two different RATs -> LTE Macro + LET small cell is not really a Het-Net

3GPP addresses most of the challenges in phases, Rel.9,10 and 11

Coordination in Het-Net is needed but the level of coordination depends on scenarios

The SON architecture flavour, i.e. distributed, centralised or hybrid, varies between vendors

Availability & openness of X2 and N-Int are important factor and will lead to different solutions by each vendor


Interference Management:

CCO, eICIC, ICIC (if X2 available)

Resource Management:

Speed based HO, Enhanced Scheduler,

Advanced QoS provisioning, Energy Saving, …


Different Solutions depending on scenarios

Option 1: Macro-cell provides SON-related

standardised information via X2

Option 2: Macro-cell provides SON-related

standardised information via O&M

Option 3: if the information could not be obtained

from macro vendors, a set of NEC specific

algorithms used- measurements or statistics

collected from NEC’s eNB or UEs.

Interfered Mobile

Cell Optimization

Various Options

SON Features

Option 1:

X2

Option 2:

OAM

Option 3

NEC

PCI TS 36.423 TS 32.762

ANR NA NA

MRO TS 36.423 TS 32.425

MLB TS 36.423 TS 32.425

CCO TS 36.423 TS 32.425 Info

fro

m U

E,

eN

B a

nd

S1

, …



MB-4300 eNB(REC+RE) LTE Femto-cells

iPASOLINK SX Multivendor SON for Het-Net

NEC LTE Small Cell Solution Tool Box

Page 10

•Indoor / Outdoor deployment

•Residential, Enterprise, Public

•Zero Touch, Plug&Play

•Lightweight, Wall/Ceiling/Desk mounted

•Multiple frequencies support

•SON managed

•Connected to EPC via GW

• Various TX power options

• Short-reach high capacity packet

• Pole solution , No footprint, Plug & Play

• All-outdoor with integrated antenna

• Lightweight design (3L/3kg)

• Utilises ‘zero-cost’ spectrum

• Unique SW feature usage between iPASOLINK

SX and eNB

• Enables nodal aggregation and ring & mesh

topologies

• Full set of SON Implementation under

flexible hybrid SON architecture

• Fully integrated SON features:

COC/CCO/ANR/MRO/MLB

• Multi-vendor SON solution based on

standardised information and NEC’s

unique algorithms

• Flexible management system to adapt

the multi-vendor environment based on

operator’s requirements

• Small form factor, light weight

• High capacity and performance

• Compact: 10L/10 Kg

• Zero foot print, wall/poll mount

• Fan less and air-cooling

• Green & low power consumption

• Carrier grade quality and reliability

• SON managed/ Het-Net adaptation

• Scalable OMC

• Electrical and Optical backhaul

interface


Concluding Remarks

Page 11

The capacity crunch and spectrum shortage are both real

The small cell solution will provide significant capacity, rapidly and at low cost

Need small cells in a Het-Net environment with a more intelligent, automated, resilient and

efficient SON system

The small cells deployment is a paradigm shift and operators need to rethink their Models

Different approach to deployment Macro-cell Vs Small Cell mainly with regard to

Backhaul, operation and management, cost, …

Move away from macro: small cell ratio calculation in the cost analysis -> Cost: Mbs/Hz/Km²

Cost analysis will be different if Macro LTE and small cell is carried out in isolation

The site options, backhaul, regulation and cost needs to be carefully taken into account

The Multi-Vendor SON for Het-Net is more of an IOT and vendor’s willingness to cooperate

A mind set change is needed

Technology

LTE World Summit 2012 Day 1 T2 Niri NEC