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LTE World Summit Barcelona May 2012 Day 1 - NEC
Citation preview
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
© NEC Corporation 2012
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
© NEC Corporation 2012
© NEC Corporation 2012
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
© NEC Corporation 2012
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
© NEC Corporation 2012
Macro Only Micro/Macro ratio =2
Micro/Macro ratio =5
Micro/Macro ratio =10
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
Macro Only Micro/Macro ratio =2
Micro/Macro ratio =5
Micro/Macro ratio =10
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
Macro Only Micro/Macro ratio =2
Micro/Macro ratio =5
Micro/Macro ratio =10
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
© NEC Corporation 2012 Page 7
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
© NEC Corporation 2012
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
© NEC Corporation 2012 Page 9
Interference Management:
CCO, eICIC, ICIC (if X2 available)
Resource Management:
Speed based HO, Enhanced Scheduler,
Advanced QoS provisioning, Energy Saving, …
Multi-Vendor SON in Het-Net
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
, …
Multi-Vendor SON in Het-Net
© NEC Corporation 2012
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
© NEC Corporation 2012
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