CONTEST. Mobile broadband network principles EBU workshop May 12 th 2011 Stein Erik Paulsen Radio Technology Manager Corporate Development Telenor [email protected] CONTENTS. Why use indoor antennas?. How can capacity be increased?. How to avoid interference?.
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Why use indoor antennas?
How can capacity be increased?
How to avoid interference?
What about the future?
Why do we need so much spectrum?
How to build a mobile network?
-The journey has just started
In 3 years network traffic has increased by a factor of 10…
…and revenue increased by 35%...
The base stations (BTS) are distributed to give RADIO COVERAGE
The base stations (BTS) are distributed to give RADIO COVERAGE – and Capacity
Larger spectrumIncreased traffic drives cost
Phase 1: Coverage
Phase 2: Capacity
TrafficThe challenge of mobile broadband
= Resulting network costWith boosting data traffic there is a need for more frequent network updates than before
=> Having only half of the spectrum can mean 4,5 times the cost.
Population= 1 M
15 mErl/sub (*)
Tot. traffic= 5190 Erl
(*) Meaning that the average customer calls for 1,5% of the most busy hour of the day
For illustration purpose only – the conclusions and calculations are simplified
(WCDMA = UMTS/HSPA = 3G)
In-Building coverage area for suburban terrain
(Source: Nokia Siemens Networks & Elisa)
MHzAccess to low frequency spectrum: -High impact on mobile broadband
Very attractive for coverage, but how to avoid traffic congestion if 89% of all users only have coverage from the 800 MHz system?
=> A fair amount of low-frequency spectrum per operator is a prerequisite.
10 Mbit/s demand
0.5 Mbit/sNetwork capacity is hard to predict
3G extension band
Disclaimer: Values should be taken as indicative. Performance will vary greatly with deployed solution, surrounding environment, terminal penetration and size of frequency spectrum. HSPA assumes 14,4 Mbps version. HSPA+ assumes 64QAM feature, not MIMO or Dual Carrier.
Source: CONTEST, Telenor.
LTE deployment strategy must be tuned to our relative ability to compete.
To summmm up… demand
BSC Base Station Controller
BSS Base Station Subsystem
BTS Base Transceiver Station
CDMA Code Division Multiple Access
CSD Circuit Switched Data
CN Core Network
D-AMPS Digital-Advanced Mobile Phone System
EDGE Enhanced Data rates for GSM Evolution
E-GPRS Enhanced - GPRS
ERAN EDGE Radio Access Network
ETSI European Telecommunications
FDD Frequency Division Duplex
FDD-DS Frequency Division Duplex –
FDD-MC Frequency Division Duplex - MultiCarrier
GGSN Gateway GPRS Support Node
GERAN GSM EDGE Radio Access Network
GMSK Gaussian Minimum Shift Keying
GPRS General Packet Radio System
GSM Global System for Mobile
HLR Home Location Register
HSCSD High Speed Circuit Switched Data
IN Intelligent Network
IP Internet Protocol
ISDN Integrated Services Digital Network
ITU International Telecommunication Union
IMT-2000 International Mobile Telecommunication
MSC Mobile Switching Center
PLMN Public Land Mobile Network
PSK Phase Shift Keying (Modulation)
PSTN Public Switched Telephone Network
RNC Radio Network Controller
SCP Service Control Point
SGSN Serving GPRS Support Node
TDD Time Division Duplex
TDMA Time Division Multiple Access
UMTS Universal Mobile Telecommunications
UTRAN UMTS Terestrial Radio Access Network
VHE Virtual Home Environment
VLR Visitor Location Register
VoIP Voice over Internet Protocol
WAP Wireless Application Protocol
W-CDMA Wideband -CDMA
2G 2nd Generation (mobile network)
3G 3rd Generation (mobile network)
3GPP 3rd Generation Partnership
Typical user data rates demand
30 – 300 Mbit/s
5 – 60 Mbit/s
1.0 – 5 Mbit/s
Fixed network demand
C o r e
T r a n s p o r t
I n t e r n e t
Packet Switch Gateway
Packet Switch Serving Node
B a c k h a u l
Radio / Access Network
Basic network interfaces
CAPEX share for
CAPEX share for greenfield MBB
45%Cost distribution in mobile networks
Core & Backbone network
Radio Access network