2 Concorso Applicazioni per Terminali Mobili - di.univr.it · DRM SyncML Calendar Protocols SIM...

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PresentazioneConcorso Terminali Mobili

@ Universita’ di VeronaF. Ricciato – IESE. Alessio - IES5 Dic, 2005

Novembre 2003

20 Concorso Applicazioni per Terminali Mobili

VERONA, 05 dicembre 2005

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Agenda

• Telecom Italia a Torino• Attivita’: RFID/ZigBee WSN ed Evoluzione terminali mobili• Concorso: Applicazioni per Terminali Mobili• Proposte di Tesi

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Attività con Università di Verona

RFID, ZigBee e WSN Evoluzione dei terminali mobili

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RFID TAGRFID (Radio Frequency IDentification) E-tag passive/attive:memorie dotate di un apparato rice-trasmettitore

“Tag-to-tag data hopping” attraverso unaAd-hoc Network di Tags

Tag come nodi intelligenti connessi alla reteTag readers come access-points verso l’infrastruttura di rete

• Chip• Antenna• Package

Readerantenna

RFIDTag

IC

antenna

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ZigBeeWPAN (Wireless Personal Area Network):• ampio numero di nodi operanti autonomamente• micro-dispositivi

- basso costo- basso consumo energetico

• basso bit rate (250 Kbps)

ZigBee come paradigma di comunicazione:

Oggetto OggettoOggetto Persona

Un nodo ZigBee può ospitare sensori/attuatori che traducono in dati gli stimoli esterni di varia natura.

Attraverso una rete ZigBee glioggetti acquistano intelligenza.

-- Specv1.0 Dec04Specv1.0 Dec04

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Settori applicativi dei nodi ZigBeeSettori applicativi dei nodi ZigBee

ApplicazioniApplicazioniZigBeeZigBee

AUTOMAZIONE DOMESTICA

ELETTRONICA DI CONSUMO

Controlloremoto diTVVCRDVD/CD

Sicurezza & controllo accessiControllo condizionamentoControllo luciControllo elettrodomestici

PC & PERIPHERALS

CONTROLLOINDUSTRIALE

Gestione magazzinoControllo processiGestione/controllo

ambientale

BIO-MEDICALE

AUTOMAZIONE DI EDIFICI

SicurezzaControllo

CondizionamentoControllo accessi

mousetastierajoystick

Monitoring dipazienti

Somministrazionefarmaci

AUTOMAZIONETRASPORTI

Controllo trafficoGestione parcheggi

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ZigBee WSN: scenario di rete

Distribution Network

Service Center

Remote ApplicationServers, Web Server,

Database…

ZigBee Home WSN

HVAC and Temperature monitoring

Entertainment

DomesticAppliances

Utenti residenziali

NEW

S

N

EWS

N

EWS

N

EWS

N

EWS

N

EWS

EWS

Health-care andMedical monitoring

InfoServices

Localisation

OutdoorZigBee WSN

Ubiquitous CommunicationPervasive Self-organizing Networks

Reliability and Security

http://images.google.com/imgres?imgurl=http://www.computercityhw.it/Computercity/Foto/ZCN03737_2040903154803.jpg&imgrefurl=http://www.computercityhw.it/Computercity/ns.asp%3Fwci%3Dwnsa%26lng%3D1040%26cur%3D3057%26did%3D37%26sr%3D36&h=250&w=250&sz=13&tbnid=e8Kx_6QklMoJ:&tbnh=106&tbnw=106&hl=en&start=14&prev=/images%3Fq%3Dvideotelefono%2Btelecom%26svnum%3D10%26hl%3Den%26lr%3D

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Tecnologie Mobile-House

•Processori per Terminali Mobili piu’potenti•Maggiore banda•Servizi avanzati•Always on equipment

• Dispositivi sempre connessi• In House connection

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New Technologies for Mobile HandSetOpen & Seamless Mobile Platform

GPRSGPRS

UMTSUMTS

WLAN

WLAN

GPSGPS

TTSASR

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BSP

Sistemi operativi per terminale

Operating SystemFirmware

-CODECS

DRM SyncML Calendar Protocols SIMtoolkit

Browser Media player Telephony Messaging Address

book

Browser UI Media Player UI PIM

Messaging UI Games

JavaApplications Device

Conf.Look&Feel

conf.

Telephony

Menu layour, graphics Themes, branding

JVM ApplicationFramework

Operator Proprietary

Technologies SeamlessManager

Application Layer

Presentation Layer

OS Core

Service Layer

SecurityD

evice Managem

ent

Hw Platform

Base BandPMU

SDRAM Flash

RF

Applicationprocessor

Connettivity

IRD

A

USB

OTG

Battery

Vibrator

PrimaryDISPLAY

Secondary

DIS

PLA

YRollableDISPLAY

RF ID

HW Platform

RF

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CharacteristicsAvailability of free open source software for fast prototyping and integration of new technologies.Few commercial devices are currently available.Unclear business model.

CharacteristicsLarge community of developers and number of available tools.Similarities with PC environment for MMI (good user acceptance).Suitable for branded versions.Low integration with Java & MIDP.Large code size.

CharacteristicsOriginally designed for embedded systems and mobile phones.Currently employed on a large number of mobile phones.Not very open to operators.

Sistema Operativo ed Architetture

CharacteristicsBased on Java CDCNo commercial devices are currently available.

CharacteristicsDesigned for PDABased on Linux Kernel

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BSP

Hw Platform




book


Messaging UI Games


Conf.Look&Feel

conf.

Telephony





Application Layer

Presentation Layer

Service Layer


-CODECS

OS CoreTrusted Operating Virtual

Environment

SecurityD

evice Managem

ent

Application Framework

UIQ / Serie 60

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Hw Platform

JVM CDC/J2SE Application Framework




book


Messaging UI Games


Conf.Look&Feel

conf.

Telephony





Application Layer

Presentation Layer

Service Layer


-CODECS

OS CoreTrusted Operating Virtual

Environment

SecurityD

evice Managem

ent

Application Framework

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Concorso: Applicazioni per Terminali Mobili

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Mission

“Sviluppare un client VoIP per terminale Nokia Serie 60 basato su protocollo SIP”

• Protocollo SIP• Codec configurabile

“Utilizzo di Socket/Web Services per remotizzare codifica e invio”

“Porting su terminale e connessione alla rete”

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VoIP

VoIP – Voice over IP (Internet Protocol)Basic idea is to run telephone type services (and sometimes video) over IP

• Cost savings (administration, arbitrage)• Tax/tariff avoidance• Security (internal, encryption)• Advanced features

Next generation (3G and later) cellular phones run over IP networks

Source: David A. Brian

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Telephony Protocols

Original phone network is circuit switched• SS7 is the protocol used for this – NOT a computer standard• Defined by ITU – International Telecommunication Union

VoIP is packet switched – uses computer networks• H.323 is also an ITU standard, but designed to work over packet

switched networks

Source: David A. Brian - www.cs.wm.edu/~bryan/pubs/ SIP%20534%20lecture%202003%2012%2006.ppt

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Telephony Protocols

SIP• IETF defined a protocol for VoIP, called SIP• Designed for packet networks, useful for any sort of multimedia

session establishment• Support for integration with email/web services• SIMPLE is a set of extensions to SIP to support instant

messaging


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POTS

IP network

Network scenario

SIP server

Gateway

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Media (RTP)

SIP Call

SIP ServerSIP/SDP SIP/SDP


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SIP

Session Initiation ProtocolDefined (mostly) in IETF RFC 3261

• Many other drafts extend SIP and add new featuresText based, very similar to HTTPSets up a multimedia session between endpointsAllows mobility – locate users using a URL (sip:[email protected])Usually runs on port 5060Can use either UDP or TCP as transportAllows for IPv4 and IPv6. Next generation cellular phones (Europe) use SIP over TCP/IPv6


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SDP

Session Description ProtocolSIP doesn’t try to describe the media streamDefined in IETF RFC 2327This is used by SIP to actually describe the type of media beingused, where to send it, etc.

• Included in SIP message as a payloadThis is an older IETF protocol

• IETF tries to promote reuse whenever possibleYet another protocol, RTP, is used for the actual media


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SIP

Logically, there are several parts to a SIP system• UA (User-Agent, Endpoint) – the phone itself – can also be a softphone

– computer software• Registrar – keeps track of where the user is within a system• Redirect Server – used to inform devices when they need to contact

different locations• Proxy Server – used to relay messages back and forth within the

systemIn practice, several functions may actually be in the same server/program


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Registration

“I’m Alice, and I’ll be using aphone at 192.168.0.1 today!”

192.168.0.1 SIP Server

sip.phonecompany.com

When I get a call for Alice, I’ll know to contact

her at 192.168.0.1!

10.0.1.1

“Lunch time! Use my mobileat 10.0.1.1”

Ah, now I will have to use 10.0.1.1 to reach Alice.


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Proxy


sip.quickmart.com

“I need to call Bob!”

“Call here for Bob from Alice”

“Call for youfrom Alice!”

Bob is over at quickmart.com.

I’ll proxy the call over there!


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Redirection


sip.quickmart.com

“I need to call Bob!”


“Call for youfrom Alice!”

sip.diveapartment.com“Try him at diveapartment.com”



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SIP Messages

SIP messages fall into two types – requests and responses• Requests include a method telling what it is they are doing. • REGISTER, to register a phone or device• INVITE, to start a new session (call)• BYE, to end a session that is established• CANCEL, to end a session that is still being set up (no final response

yet)• ACK, part of the triple handshake


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SIP Messages

Responses are numeric, much like HTTP• 1xx Provisional – 100 Trying, 180 Ringing• 2xx Successful – 200 OK• 3xx Redirection – 301 Moved Permanently, 302 Moved

Temporarily• 4xx Failure – 404 Not Found, 410 Gone, 403 Forbidden• 5xx Server Failure – 503 Service Unavailable• 6xx Global Failure – 600 Busy Everywhere


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RegistrationSIP Server

REGISTER

401 Unauthorized

REGISTER

200 OK


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Basic Call SIP Server

INVITEINVITE

100 Trying

180 Ringing180 Ringing

200 OK200 OK

ACKACK

BYEBYE

Bi-directional Media between endpoints

200 OK 200 OKSource: David A. Brian - www.cs.wm.edu/~bryan/pubs/ SIP%20534%20lecture%202003%2012%2006.ppt

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INVITE messageINVITE sip:[email protected] SIP/2.0 Via: SIP/2.0/TCP aliceua.phonecompany.com:5060From: Alice <sip:[email protected]> To: Bob <sip:[email protected]> Call-ID: [email protected] CSeq: 1 INVITE Contact: <sip:[email protected];transport=tcp> Content-Type: application/sdpContent-Length: 151

v=0 o=Cisco-UserAgent 10010 605 IN IP4 aliceua.phonecompany.coms=SIP Callc=IN IP4 192.0.1.1 t=0 0 m=audio 49172 RTP/AVP 0 8 16


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Client VoIP di base

VoIP Call Control

SIP

VoIP Control interface

IP,UDP interface

Codecs

Speech algorithm libraryCodecs

Packet handlerFramingRTP, RTCP,

Audio Audio Devices VoIP Call Control

SIP


IP,UDP interface

Codecs



Audio Audio Devices

Sockets/Web Services

Java/C++

Java

C/C++

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IP network

Scenario di rete

VoIP Call Control

SIP


IP,UDP,TCP interface

Codecs



Audio Audio Devices

Java/C

IPTel.orgSIP server

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References

[1] SIP versus H.323, iptel.org, (http://www.iptel.org/info/trends/sip.html) [2] SIP Tutorial, iptel.org, (http://www.iptel.org/sip/siptutorial.pdf)[3] SIP RFC, RFC-3261, IETF, (http://www.ietf.org/rfc/rfc3261.txt)[4] SDP RFC, RFC-2327, IETF, (http://www.ietf.org/rfc/rfc2327.txt)[5] VOCAL Project, (http://www.vovida.org)[6] ReSIProcate Project, (http://www.resiprocate.org)[7] Vonage, (http://www.vonage.com)[8] David A. Brian - www.cs.wm.edu/~bryan/pubs/ t

http://www.iptel.org/info/trends/sip.html

http://www.iptel.org/sip/siptutorial.pdf

http://www.ietf.org/rfc/rfc3261.txt

http://www.ietf.org/rfc/rfc2327.txt

http://www.vovida.org/

http://www.resiprocate.org/

http://www.vonage.com/

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Fasi del Concorso

•Sviluppo dell’applicazione

•Prima revisione (15 febbraio)

•Revisione finale (15 marzo)

•Comunicazione vincitori

•Premiazione, presentazione e demo in Telecom Italia

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Criteri di Valutazione (I)

•Attinenza al mandato

•Scelta tecnologie• Progettazione a livello sistema dei meccanismi di interazione• Efficienza della comunicazione• Client

•Programmazione• Paradigma di programmazione• Struttura del codice e delle classi• Efficienza codice• Ordine di scrittura

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Criteri di Valutazione (II)

•Documentazione

•Presentazione demo dell’applicazione• Framework di testbench

•GUI• Grafica• Interazione utente

•Ricchezza di caratteristiche dell’applicazione• Configurabilita’

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Premi

1.Lettore CD + Ricarica TIM 50 Euro2.Chiavetta USB + Ricarica TIM 30 euro 3.Podometro + Ricarica TIM 30 euro

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Riferimenti

•Giovanni Perbellini [email protected]

•Fabio Ricciato [email protected]

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Thesis in Telecom Italia

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Thesis in TILABWhat ?

The subject

With whom?The work group

When & where?The duration and the

location

What do I get ?The results

How ?The tools

Who ?The requirements

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Thesis in TILAB Who ?The requirements

I`m looking for students:in Computer Science

Computer engineeringElectronic engineeringTLC engineering

With high motivations in being inserted in R&D environment

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Thesis in TILAB What ?The subject

• Embedded OS• Mobile Terminal• Board Development• Low Power Analysis• Embedded processors• DSP programming• Embedded Java • Embedded Linux • Adv. Cellular phone progr.

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Thesis in TILABWith whom?The work group

You will be inserted in a work group becoming

an all-round member of the project

You will enter in an advanced R&D

environment joining theresearch pleasure

with theindustrial effectiveness

continuing the strict contact withyour university

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Thesis in TILAB How ?The tools

You will access industrial CAD tools, workstations and

laboratoriesAdvanced simulation platformAdvanced prototyping platform

Embedded Linux, Symbian, Windows Mobile

Java, embedded processor environments

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Thesis in TILABWhen & where?The duration and the

location

You are requested to have aSix/Nine monthsFull-time effortSummer stage

Telecom Italia Turin siteDip. Informatica

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Thesis in TILABWhat do I get ?The results

Thesisthe student’s thesis becomes reference

documentation for TILAB Patents

often the thesis work brings to have a patent

Articles/White papersOne of the aim of the research is to

publish the work on international conferences

ExperienceStudent gets the field experience on

industrial hot topics

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Activities

ZigBee

Linux and open source

USIM programming

Mobile Terminal

Embedded Security

Sistemi operativi per cellulari

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Contacts

[email protected]@sci.univr.it

[email protected]@telecomitalia.it

mailto:[email protected]

mailto:[email protected]

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