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8/9/2019 Widyatama.lecture.applied Networking.iv Week02 Mobile Networking
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Applied Networking-IV (2231114)
Lecture Week-2
Mobile Networking Part-2
22--FebFeb--1010 WidyatamaWidyatama UniversityUniversity--InformaticsInformatics 11
Lecture byLecture by:: Djadja.SardjanaDjadja.Sardjana, S.T., M.M., S.T., M.M.
www.slideshare.net/djadjawww.slideshare.net/djadja
8/9/2019 Widyatama.lecture.applied Networking.iv Week02 Mobile Networking
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Mobile DeviceMobile Device
22--FebFeb--1010 Widyatama UniversityWidyatama University--InformaticsInformatics 22
MobileMonkey1m00
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Mobile devicesMobile devices
Pager• receive only• tiny displays• simple textmessa es
PDA• graphical displays• character recognition• simplified WWW
Laptop/Notebook• fully functional• standard applicatio
Mobile phones• voice, data
Palmtop• tiny keyboard
Sensors,embeddedcontrollers
Widyatama UniversityWidyatama University--InformaticsInformatics
performanceperformance
• simple graphical displays
• s mp e vers ons
of standard applicationswww.scatterweb.net
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Mobile Device EnvironmentMobile Device Environment
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Mobile EcosystemMobile Ecosystem
NetworkMobile Operator
/PAN/WAN
Channels
Distributors
Platform
OS, Silicon
Devices
OEM/ODM
ServicesSI, SP
Solutions
ISV / IHV
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Mobile Device EcosystemMobile Device Ecosystem
SmartSmartDevices with an OpenDevices with an Open
a orma orm
MobileMobileOperator Operator MobileMobile
Operator Operator
ProfitabilityProfitability
Business PartnersBusiness Partners
EcosystemEcosystem
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Mobile Computing DevicesMobile Computing Devices
personal digital assistant (PDA)personal digital assistant (PDA)
an e compu er pr nc pa y use oran e compu er pr nc pa y use orpersonal information managementpersonal information management
smartphonesmartphone
InternetInternet--enabled cell phone that can supportenabled cell phone that can supportmobile applicationsmobile applications
99--77
BlackberryBlackberryA handheld device principally used for eA handheld device principally used for e--mailmail
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Effects of device portabilityEffects of device portability Power consumptionPower consumption
limited computing power, low quality displays, small disks due tolimited computing power, low quality displays, small disks due tolimited battery capacitylimited battery capacity
CPU:CPU: ower consum tion ~ CVower consum tion ~ CV22ff
•• C: internal capacity, reduced by integrationC: internal capacity, reduced by integration
•• V: supply voltage, can be reduced to a certain limitV: supply voltage, can be reduced to a certain limit
•• f: clock frequency, can be reduced temporallyf: clock frequency, can be reduced temporally
Loss of dataLoss of data higher probability, has to be included in advance into the designhigher probability, has to be included in advance into the design
(e.g., defects, theft)(e.g., defects, theft)
Limited user interfacesLimited user interfaces
compromise between size of fingers and portabilitycompromise between size of fingers and portability integration of character/voice recognition, abstract symbolsintegration of character/voice recognition, abstract symbols
Limited memoryLimited memory
limited value of mass memories with moving partslimited value of mass memories with moving parts
flashflash--memory or ? as alternativememory or ? as alternative
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Mobile Device GrowthMobile Device Growth
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Mobile Device StrategyMobile Device Strategy
Smart Device FocusSmart Device Focus
Standards Based, Rich APIsStandards Based, Rich APIs
Best Wireless PlatformBest Wireless Platform
Extensible & FlexibleExtensible & Flexible
Pocket PCPocket PC
PDAPDASmartphoneSmartphone
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Mobile Data OpportunityMobile Data Opportunity
Redefines the PC and mobile experiencesRedefines the PC and mobile experiences
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Mobile Device SubscribersMobile Device Subscribers
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Handset for Mobile VideoHandset for Mobile Video
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Handset with WiHandset with Wi--FiFi
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Mobile DeviceMobile DeviceEvolutionEvolution
MobileEvolution
3m06
Moore’s Law is in effectMoore’s Law is in effect
Consumer demand is drivingConsumer demand is driving
innovationinnovation
Current mobile deviceCurrent mobile device
ecosystem is generatingecosystem is generatingmore opportunitiesmore opportunities – – enhancing value andenhancing value andproductivityproductivity
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Maturity of Mobile Apps/Services
Mobile Data: From gimmick to lifestyle changing…Mobile Data: From gimmick to lifestyle changing…
rdrd “ ”“ ”
Operator must be positioned to meet customer needsOperator must be positioned to meet customer needs
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T d d iT d d i
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Trends: devicesTrends: devices• End user wants the my-service-anywhere experience
• New intelligent & powerful device classes already start to support this goal
R I C
Voice/Data
Convergence and CTIby leveraging Internet as
Platform
Voice/DataConvergence with multimodebroadband mobile access
driven by disruptive wirelessaccess technologies
D A T A
C E N
T
R I C
UpcomingDevice Classes
22--FebFeb--1010 1717Widyatama UniversityWidyatama University--InformaticsInformatics
Fixed Mobile Convergencedriven by operators service
offering innovations V O I C E
C E N T
mobility requirementslow high
C d D iC d D i
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Converged DevicesConverged Devices
PCsTVs
MobilePDAs
DATA
• End user wantsthe my-service-anywhereexperience
FIXED MOBILE
Upcoming
DeviceClasses
• New intelligent &powerful deviceclasses alreadystart to supportthis goal
FixedPhones
MobilePhones
VOICE
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MobileMobile OperatingOperating SystemsSystems
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Operating Systems BackgroundOperating Systems Background
Operating System (OS)Operating System (OS) Process ManagementProcess Management
File ManagementFile Management
I/O Management I/O Management
Networking Networking
Protection System Protection System User Interface User Interface
Real Time O eratin S stem RTOSReal Time O eratin S stem RTOS Characterized by timing constraintsCharacterized by timing constraints
Mobile Operating System (Mobile OS)Mobile Operating System (Mobile OS) RTOS running on a mobile deviceRTOS running on a mobile device
22--FebFeb--1010 2020Widyatama UniversityWidyatama University--InformaticsInformatics
Mobile operating systemMobile operating system
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Mobile operating systemMobile operating system
The main software to manage and controlThe main software to manage and controlhardware and software directly.hardware and software directly.
Responsible for operating the various functionsResponsible for operating the various functions
and features available in mobile devices.and features available in mobile devices. Besides functioning to control the hardwareBesides functioning to control the hardware
resources and software, operating system alsoresources and software, operating system alsocontrols so all applications can run stable andcontrols so all applications can run stable and
consistent.consistent.
Another advantage of the mobile phone OS is toAnother advantage of the mobile phone OS is tohave more freedom to download additionalhave more freedom to download additional
applications that are not provided by the phoneapplications that are not provided by the phone
vendors.vendors.22--FebFeb--1010 2121Widyatama UniversityWidyatama University--InformaticsInformatics
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Mobile operating system typeMobile operating system type
SymbianSymbian operating systemoperating system
Windows MobileWindows Mobile Palm operating systemPalm operating system
Mobile LinuxMobile Linux Blackberry operating systemBlackberry operating system
22--FebFeb--1010 2222Widyatama UniversityWidyatama University--InformaticsInformatics
I t d ti tI t d ti t S biS bi OSOS
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Introduction toIntroduction to SymbianSymbian OSOS
Evolution ofEvolution of SymbianSymbian OSOS 19971997 -- 32 bit EPOC Platform (Psion Software Inc)32 bit EPOC Platform (Psion Software Inc) – – Psion Series 5 PDAPsion Series 5 PDA
19981998 – – S mbianS mbian – – A s inA s in--off from Psion Software Inc.off from Psion Software Inc.
CoCo--owned by Psion, Nokia, Eriksson, Motorolaowned by Psion, Nokia, Eriksson, Motorola
The motive behind this spinThe motive behind this spin--off was to develop an advanced softwareoff was to develop an advanced softwareplatform for a new combination of consumer products calledplatform for a new combination of consumer products calledSmartphone Smartphone which would combine telephony and computing capabilitywhich would combine telephony and computing capability
19991999 – – EPOC named asEPOC named as SymbianSymbian OSOS
CoCo--owned by Psion, Nokia, Sonyowned by Psion, Nokia, Sony--Eriksson, Motorola, MatsushitaEriksson, Motorola, Matsushita(Panasonic), Samsung and Siemens.(Panasonic), Samsung and Siemens.
SymbianSymbian OSOS Hard RTOS based on layered/microHard RTOS based on layered/micro--kernel architecturekernel architecture
StrongARMStrongARM architecture (ARM9 running over 100 MHZ)architecture (ARM9 running over 100 MHZ)
Program storage (flash memory) ; OS storage flash ROMProgram storage (flash memory) ; OS storage flash ROM
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Symbian OSSymbian OS
MicroMicro--kernel uses client/server session basedkernel uses client/server session based
Servers mediate access to shared resourcesServers mediate access to shared resourcesand servicesand services
Kernel deals with memory allocation and IPCsKernel deals with memory allocation and IPCs
Proactive defense mechanismProactive defense mechanism
Platform Security ArchitecturePlatform Security Architecture OS ServicesOS Services
Data CagingData Caging
22--FebFeb--1010 2424Widyatama UniversityWidyatama University--InformaticsInformatics
S biS bi OS A hiOS A hi
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SymbianSymbian OS ArchitectureOS Architecture
22--FebFeb--1010 2525Widyatama UniversityWidyatama University--InformaticsInformatics
Architectural OverviewArchitectural Overview
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Architectural OverviewArchitectural Overview
CoreCore
Kernel, file server, memory management and deviceKernel, file server, memory management and device
driversdrivers System LayerSystem Layer
Communication and computing services e.g. TCP/IP,Communication and computing services e.g. TCP/IP,
IMAP4, SMS and database managementIMAP4, SMS and database management Application EnginesApplication Engines
ApplicationsApplications
AllAll layers communicate with each other usinglayers communicate with each other usingClient/Server MechanismClient/Server Mechanism
22--FebFeb--1010 2626Widyatama UniversityWidyatama University--InformaticsInformatics
J2ME on SymbianJ2ME on Symbian
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J2ME on SymbianJ2ME on Symbian
SymbianSymbian – – A mobile operating systemA mobile operating system J2MEJ2ME – – A nonA non--native programming languagenative programming language
Symbian OS
Hardware
22--FebFeb--1010 2727Widyatama UniversityWidyatama University--InformaticsInformatics
Win MobileWin Mobile OSOS
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Win MobileWin Mobile OSOS Win MobileWin Mobile 5.0 is a hard5.0 is a hard
RTOSRTOS
Base OS functionality isBase OS functionality isprovided by kernel whichprovided by kernel which
includes process, thread,includes process, thread,memory and filememory and filemanagementmanagement
Kernel acts as a conduit forKernel acts as a conduit for
the rest of the core OSthe rest of the core OS Win MobileWin Mobile kernel uses akernel uses a
paged virtualpaged virtual--memory systemmemory systemto manage and allocateto manage and allocate
program memory.program memory.
The kernel also allocatesThe kernel also allocatesmemory to the stack for eachmemory to the stack for eachnew process or thread.new process or thread.
22--FebFeb--1010 2828Widyatama UniversityWidyatama University--InformaticsInformatics
MM A hit tA hit t
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MemoryMemory ArchitectureArchitecture
Windows Mobile 5.0Windows Mobile 5.0 ::
RAM is used exclusivel for runninRAM is used exclusivel for runnin
programs.programs.
Flash memory is used for storage ofFlash memory is used for storage of
programs and data.programs and data. Result: extended battery life but slowerResult: extended battery life but slower
erformanceerformance
22--FebFeb--1010 2929Widyatama UniversityWidyatama University--InformaticsInformatics
Mobile LinuxMobile Linux
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Mobile LinuxMobile Linux
The first Linux mobile phone launched byThe first Linux mobile phone launched byMotorola in February 2003.Motorola in February 2003.
Motorola A760 series are using OS combinationMotorola A760 series are using OS combinationof the Linux kernel software that is distributedof the Linux kernel software that is distributed
by Silicon Valleyby Silicon Valley--basedbased MontaMonta Vista and otherVista and othersoftware from the Java programming language,software from the Java programming language,
Sun Microsystems.Sun Microsystems.
LinuxLinux--based operating system developed bybased operating system developed byGoogle is Android.Google is Android.
22--FebFeb--1010 3030Widyatama UniversityWidyatama University--InformaticsInformatics
Mobile LinuxMobile Linux
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Mobile LinuxMobile Linux
Advantage &Advantage & DisDis--advantageadvantage The advantages is that Linux as an ideal OS forThe advantages is that Linux as an ideal OS for
companies such as IBM, Oracle, and Intel. Incompanies such as IBM, Oracle, and Intel. Inaddition, this system value is more flexible andaddition, this system value is more flexible and
offers a smaller memory and can be moreoffers a smaller memory and can be moreconserved.conserved.
The disadvanta e is the additional a licationThe disadvanta e is the additional a lication
has not beenhas not been avalaibleavalaible and Linux systems builtand Linux systems builtto operate with great power, so battery resourceto operate with great power, so battery resource
management is still less effective than othermanagement is still less effective than other
OSesOSes..22--FebFeb--1010 3131Widyatama UniversityWidyatama University--InformaticsInformatics
Bl kB iBl kB i
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BlackBerry operating systemBlackBerry operating system
Telecommunications companies from Canada,Telecommunications companies from Canada,
communications devices. Initially they arecommunications devices. Initially they areproducing products and services pager for bothproducing products and services pager for both
directions.directions.
This company developed a new breakthroughThis company developed a new breakthroughb creatin the famous Blackberr ushb creatin the famous Blackberr ush--emailemail
service, and now turned into a Smartphoneservice, and now turned into a Smartphonewhich has various functions such as, GPS,which has various functions such as, GPS,
mobile internet, and can accessmobile internet, and can access WiWi--FI.FI.
22--FebFeb--1010 3232Widyatama UniversityWidyatama University--InformaticsInformatics
P l iP l i
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Palm operating systemPalm operating system
Example is Palm Treo 680 Smartphone usesExample is Palm Treo 680 Smartphone uses
5.4.9 with the Intel PXA270 processor, 312MHz.5.4.9 with the Intel PXA270 processor, 312MHz.
Some of the features offered is Pocket Express,Some of the features offered is Pocket Express,
Microsoft Media Player, Palm files, PDF viewer,Microsoft Media Player, Palm files, PDF viewer,Adobe Acrobat reader,Adobe Acrobat reader, eReadereReader, Pocket Tunes,, Pocket Tunes,and Document To Go.and Document To Go.
22--FebFeb--1010 3333Widyatama UniversityWidyatama University--InformaticsInformatics
ComparativeComparative Review onReview on
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ppSymbianSymbian & Win Mobile& Win Mobile
OS Design and ArchitectureOS Design and Architecture
SymbianSymbian: ARM processors running 100: ARM processors running 100--200 MHz200 MHz
Win Mobile:Win Mobile: ARM and Intel processors running 200ARM and Intel processors running 200--400 MHz400 MHz
emory anagemenemory anagemen
SymbianSymbian: OS kernel runs in privileged mode, with each app has its own: OS kernel runs in privileged mode, with each app has its ownaddress spaceaddress space
Win Mobile:Win Mobile: Shared RAM and flash ROM, useShared RAM and flash ROM, use eXecuteeXecute In Place (XIP)In Place (XIP)schemescheme
File SystemFile System SymbianSymbian: TCB contains file system: TCB contains file system
Win Mobile:Win Mobile: Hierarchical file system accessible through kernel functionsHierarchical file system accessible through kernel functions
eve opmenteve opment
SymbianSymbian:: SymbianSymbian specific frameworks/librariesspecific frameworks/libraries Win Mobile:Win Mobile: Windows APIWindows API
SecuritySecurity
SymbianSymbian: Fairly well designed: Fairly well designed
Win Mobile:Win Mobile: Lack of process’s address spaceLack of process’s address space protectionprotection
22--FebFeb--1010 3434Widyatama UniversityWidyatama University--InformaticsInformatics
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Conclusion & Final WordsConclusion & Final Words
22--FebFeb--1010 Widyatama UniversityWidyatama University--InformaticsInformatics 3535
MobileFuture2m30
MobileCaseStudy
Which distinctiveHow should technology
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6
1
Which distinctivetechnological
competences and
capabilities arenecessary?
gyand innovation be
organized andmanaged?
53
2
Whichtechnologies
should beused to
implementproduct and
service?
When, how andwhere should new
technology beintroduced to the
market?
QuestionsQuestionsTechnologyTechnology
Strategy ShouldStrategy ShouldAnswerAnswer
22--FebFeb--1010 Widyatama UniversityWidyatama University--InformaticsInformatics 3636
4What should be thelevel and timing of
investment in
technologydevelopment?
Should technologiesbe sourced internally
or externally?
Source: Burgelman, Strategic Management of Technology and Innovation
End – End Experience is Critical
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End End Experience is Critical Improving customer experience – ensuring choice and
innovation at affordable price points
A fair la in field will focus service roviders on meetin
consumers’ growing needs
22--FebFeb--1010 3737Widyatama UniversityWidyatama University--InformaticsInformatics