Mobile Communication Networks IKT501 - PowerPoint PPT Presentation

Title: Mobile Communication Networks IKT501


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Mobile Communication NetworksIKT501

• Prof. F. Reichert

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Course Overview (1)

• Lectures Exercises
• Self Study Project II
• Exam, Dec. 12

Lecture 8
Lecture 9
Lecture 10
Lecture 11
Lecture 12
summary
reserve
Oct 17
Oct 24
Oct 31
Nov 7
Nov 14
Nov 21
Nov 28
42
43
44
45
46
47
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Self-Study Project Description
Self-Study Project Return
http//www.hia.no/stud/eksam/daggroosh.htm
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Course Overview (2)
08. Introduction and background
09. GSM/UMTS
10. IMS
11. IP Mobility and Mobile IP
12. MBMS, WiMAX, WLL,
13. Summary
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Introduction

• Mobile Communication Networks Part IIIKT501

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Cellular System Evolution (Ericsson)
http//www.ericsson.com/products/white_papers_pdf/
seamless_network.pdf
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What if access would be free?
WiFi Network 1 at University
PC-user
Global Internet
Phone-user
WiFi Network 2 at TrainStation
WiFi Network 3 at home
Services
Phone-user
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Today

• Today we need to buy access for GSM, broadband,
  from operators
• however we may actually be lucky that they
  exist.

! No cash? No fun!
Please, Please!
Operator
to friends, to Internet, to .
users
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COVERAGE
Access, wherever you are!
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Coverage
COVERAGE
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Telenor investments 2004
COVERAGE
http//www.telenor.com/reports/2004/financial/inve
stments/
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Coverage (Telenor, Netcom, Norway)
COVERAGE
http//www.gsmworld.com/cgi-bin/ni_map.pl?ccnone
tte
http//www.gsmworld.com/cgi-bin/ni_map.pl?ccnone
tne
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ROAMING
Access, wherever you are!Even if the network
doesnt belong to your operator.
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GSM World-Wide Coverage
ROAMING
over 820 networks in 220 countries/areas of the
world
http//www.gsmworld.com/roaming/GSM_WorldPoster20
05C.pdf
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Roaming
ROAMINGv
Operators sign roaming agreementsto allow their
costumers to useforeign networks
Operator
Norway
Subcontractor relationship
Roaming
AccessNetworkProvider
AccessNetworkProvider
Access NetworkProvider
http//www.tango.lu/ http//www.madacom.com/
France
Lichtenstein
Madagascar
based on Ericsson Operatorshop business model
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World-Wide Access Roaming
ROAMING
http//www.telenor.no/
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Reachability
Being able to contact any person or any
service. Being able to be contacted by any person
or any service.
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Example MCP GSM on Cruise Ships
REACHABILITY
http//www.mcpinc.biz/faq.php
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Example MCP GSM on Cruise Ships
REACHABILITY
http//www.pts.se/Archive/Documents/SE/Presentatio
n_15_sept_2004.pdf
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Reachability
Reachability

• Telephony services All user can reach all user
  worldwide
• Today over 2 billion mobile subscribers
• Tomorrow 10 billion (incl. sensors, machines
  etc)

http//www.gsmworld.com/roaming/GSM_WorldPoster200
5C.pdf
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Reachability Operator Interconnection
Reachability
Interconnection
Operator1
Operator2
http//www.mobilplus.gl/
Norway
Greenland
Two operator interconnect as peers to allow their
customers to reach and communicate with each other
based on Ericsson Operatorshop business model
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Reachability - generalized

• knowing at any time where a user is and how that
  user should be contacted.

Reachability Solution
myMobile _at_ holidays

myPC _at_ home
someone calling us
myMobile _at_ work
buzzwords presence services IMS SIP
fixed-mobile convergence always best
connected access agnostic
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Multi-Access Vision (Nokia)
http//www.nokia.com/NOKIA_COM_1/Operators/Mobile_
Operators__Service_Providers/Mobile_Networks/WCDM
A/radio_network_evolution_a4_02-2005_net.pdf
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Roaming Interconnection
Interconnection
Operator1
Operator2
Peer
Roaming
AccessNetworkProvider
AccessNetworkProvider
Access NetworkProvider
Subcontractors
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Reliability
Robust, secure, and trustworthy communications
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Reliability
RELIABILITY
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Reliability as sales argument
RELIABILITY
http//www.verizonwireless.com/
http//www.ida.gov.sg/
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Reliability
RELIABILITY

• achieve high levels of service
• ensure network availability
• keep outage times as low as possible
• cope with high network load peaks (flash
  crowds, slashdot effect)
• provide for emergency calls

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Capacity
handling subscriber growth and new services
typesthrough upgrading of networkswhile
retaining or increasing communication quality
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Capacity
CAPACITY
handling subscriber growth through increasing
capacitywhile retaining communication quality
http//www.gsmworld.com/roaming/GSM_WorldPoster200
5C.pdf
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Quality of Service (QoS)
offering subscribers different service levels and
guarantees
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Quality of Service (QoS)
QoS

• E.g.
• average bandwidth
• peak bandwidth
• round trip delays
• jitter
• bit error rates
• network access delay
• voice quality,
• Overall network capacity
• Number of parallel data and/or voice users

• Self-Study Project

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QoS needs of different applications (Nokia)
QoS
http//www.nokia.com/NOKIA_COM_1/Operators/Mobile_
Operators__Service_Providers/Mobile_Networks/WCDM
A/radio_network_evolution_a4_02-2005_net.pdf
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HSDPA peak user data rates (3G evolved)
QoS
downlink to user
uplink from user
http//www.nokia.com/NOKIA_COM_1/Operators/Mobile_
Operators__Service_Providers/Mobile_Networks/WCDM
A/radio_network_evolution_a4_02-2005_net.pdf
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Mobility
Mobility
Allowing users to movewhile communicating
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Mobility across environments
Mobility
ftp//ftp.cordis.lu/pub/ist/docs/directorate_d/cnt
/pubar/hungarians-guirao_en.zip
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Vertical Horizontal Handovers
Mobility
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Handovers
Mobility
Movement
Keeping users connected while movingbetween
radio cells
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Cost
Cost
Making services more and more affordable
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Revenues going down
Cost
Average Revenueper User and service (ARPU per
service)
Counter Measures Lower Cost New Revenues
time
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Cost Reduction Ambitions
Cost
Remark Dont use the ABSOLUTE figures as true
factsbut regard them as a quantitative ambition
http//www.nokia.com/NOKIA_COM_1/Operators/Mobile_
Operators__Service_Providers/Mobile_Networks/WCDM
A/radio_network_evolution_a4_02-2005_net.pdf
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Seeking New Revenues
Cost
Average revenueper user (ARPU) and service
possible ARPU
New Revenues byNew Services
time
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Substitution of fixed with mobile voice
Cost
ftp//ftp.cordis.lu/pub/ist/docs/directorate_d/cnt
/pubar/jauhiainen_bremen_300604_en.zip
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Location
Location
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Cell-Based Position
Location
more see http//www.vtt.fi/tte/tte35/pdfs/CELLO-W
P2-VTT-D03-007-Int.pdf
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Angle of Arrival (AOA)Received Signal Strength
(RSS)
Location
requires line-of-sight and antenna areas
more see http//www.vtt.fi/tte/tte35/pdfs/CELLO-W
P2-VTT-D03-007-Int.pdf
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Time of Arrival (ToA)
Location
more see http//www.vtt.fi/tte/tte35/pdfs/CELLO-W
P2-VTT-D03-007-Int.pdf
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Database Correlation Method (DCM)
more see http//www.vtt.fi/tte/tte35/pdfs/CELLO-W
P2-VTT-D03-007-Int.pdf
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Standardization
http//www.openmobilealliance.org/tech/wg_committe
es/loc.html
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More
More
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Device Development
Devices
http//www.sonyericsson.com/spg.jsp?ccgblcenve
r4000templatepp1_loaderphpphp1_10336lmpp1p
id10336
features time
GSM
Bluetooth
GPRS
EDGE
WCDMA
HSDPA/HSUPA
WiFi
IMS
SMS
WAP
Email
Java
Camera
MP3
PIM
MMS
TCP/IP
WWW
FlashMem
SIP
FM
GPS
features not necessarily in right timely order
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New Phone Concepts by Nokia
http//www.phonemag.com/index.php/weblog/read_more
/10072005_nokia_surv1_concept_shock_proof_and_shoc
kingly_awesome/
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Summary
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What if access would be free?
WiFi Network 1 at University
PC-user
Global Internet
Phone-user
WiFi Network 2 at TrainStation
WiFi Network 3 at home
Services
Phone-user
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Operators provide end-users with

• Coverage
• Roaming / World-wide Access
• Reachability
• Reliability / Stability / Availability
• Capacity Quality of Service QoS
• Mobility
• Payment
• Security
• Device and service management
• Simplicity of Access Network
• Applications
• Positioning
• Support

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The Operator Shop - A Player Model
ServiceProvider
ServiceProvider
ServiceProvider
ServiceProvider
ServiceProvider
ServiceProvider
The OperatorShop
The OperatorShop
Source Ericsson
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Self-Study Project
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Self-Study Project
4G

• What is 4G?
• Yet another buzzword?
• 3G is not even deployed fully yet
• Why would you want it?

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Self-Study Project
4G

• What is 4G?
• Describe the current state of discussion
• Compare different opinions (who and what)
• e.g. manufacturers (Ericsson, Nokia, Lucent,
  Qualcomm, Huawei, )
• e.g. operators (Telenor, NTT DoCoMo, T-Mobile,
  France Telecom, BT, )
• e.g. other parties (EU in 6th framework
  programme, )
• List main features
• e.g., bandwidth, coverage, quality-of-service,
  infrastructure, applications
• How does 4G relate to 2G/3G?
• e.g., replacement or compliment, common or new
  infrastructure,
• e.g. timeline for introductio (2006?, 2011? )
• Your opinion
• e.g. what is your perception what 4G could or
  should be?
• e.g., why would you want or not want 4G?

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Self Study project Starting Points
4G

• Google
• 4G.CO.UK http//www.4g.co.uk/
• IEEE 802.20
• NTT DoCoMo http//www.mobilecomms-technology.com/
  projects/4g_i-mode/
• Emerging Wireless Technologieshttp//www.safecomp
  rogram.gov/NR/rdonlyres/5C74C631-ACF6-433F-B313-C0
  4D041A5489/0/Look_Future_Wireless_Communications_B
  eyond3G.pdf
• B3G and 4G What is it good for? IST Summit
  2005http//mobilesummit2005.org/session.php?sessi
  on103
• International Forum on Future Mobile
  Telecommunications China-EU Post Conference on
  B3Ghttp//www.cordis.lu/ist/ka4/mobile/pubar/pas
  t/china_02.htm

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Self Study Project
4G

• Expected Result
• Report, that summarizes your findings
• Length about 8-10 pages
• Language Norwegian, German or English
• At least four sections
• 4G motivation (why?)
• 4G system features (what?)
• 4G relation with 2G/3G
• Your Conclusions and Opinions
• please include references

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References

• IP for 3G, D. Wisley, Ph. Eardley, L. Burness,
  John Wiley Sons, 2002, ISBN 0 471 48697 3
• Mobile Communications, 2nd edition,Jochen
  Schiller, Addison-Wesley, 2003, ISBN 0 321 12381
  6
• more see last slide and classfronter