Working of Sms

8/6/2019 Working of Sms

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K.V.Koteswara Rao

Working of SMS Roll No:36

INTRODUCTION:

In the modern era the mobile phones are covering a major part of

worlds communication system. These mobile phones are used between all

the levels of community and at the same time they give some inconvenience.If supposed to make an important call by that time the user is busy or he may

switched off or out of coverage area we will be in confused state. At that

particular situations these short message service helps gratefully. Sending a

sending an E-mail to mobile or receiving is quite possible in present years.

For all these SMS is playing a key role for transmission.

HISTORY:

Its very amazing to here that this service is available in

Europe from the early years of 1991.At that time the GSM is called as

European Standard for Digital Wireless. This Digital Wire less Service hadprovided the SMS facility to all the subscribers later this service has been

developed by other networks like NEXTEL, PRIMCO, and BELL SOUTH

MOBILITY in US. But all these organization had implemented their own

protocols,. Successively the wireless service has improved to send messages

between different networks. All the organizations collaborated to

communicate data calls, voice calls etc...Also leading to GSM. SMS is a part

of GSM phase1 standard.

The first text messages from PC to mobile phone is sent byGSM network in 1992 by United Kingdom, by 2000years this wireless

communication acquired all types of facilities yet the service providers are

unable to reach the needs of the customers. the paging services failed in

providing good service to customers. Mobile services implemented new

plans like prepaid offers to ease intension of the people they also given SMS

facility to all the subscribers, due to the lack of technical problem the

messages are not been charged due to this the traffic in network was

overflowed it made the service providers in finding solution for charging of

messages.

WHAT IS SMS?

Sending a text message from one mobile to another mobile

or to any fax machine or to IP address or any other internet provided system

is called short message service (SMS).we can also send messages to mobiles

phones from E-mails and messangers..The network system which supports

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this "GLOBAL STANDARD FOR MOBILES"(GSM) can able to send or

receive messages. GSM is also called as global system for mobile

communication.

WORKING:

If the messages is sent from mobile phone first it reaches to

short messages service center (SMSC) the signal transfer point of that

message will send a request to Home Location Register. This Home

Location Register searches for the destination mobile and gives the status of

that mobile to SMSC weather it is switched off or out of coverage area,

according to status given by HLR the messages will be send or stored for

later transmission. Storing and sending of messages is called Forward

system.

The difference between paging and short message service is if

the destination number is unable to reach or switched off then paging will

not retransfer the message were as mobile service stores the messages and

retransmits it until it reaches the destination. The band width of SMS is very

low it allows small packets of data, i.e. the short message delivery path will

change with the arrival of GPRS, increasing the delivery success rate,

reducing delivery time, but, because the same SMS is used, there is no effect

on the service itself or the possible presentation to the user. The entire

service environment remains unaffected by network enhancements and does

not need to change because of GPRS. It allows only 160charecters includingspaces for each SMS. If it is rather than 160char the other characters will be

truncated.

Obviously short message service is optimized into two

methods. Point to point and point to omni point. In point to point operator

will not indulge but there will be a dedicated link between mobile station

and network. point to point is sub divided into Message-Mobile

Terminated(SM-MT) and Short Message Mobile Originated(SM-

MO).mobile originated corresponds to send list and mobile terminated

corresponds to receive list of the messages. Also the delivery reports aresending to the sender with help of these techniques. In point to point if the

message is binary it allows 140bytes, if characters it allows only

160charecters.in point to omni point allows only 93charecters it is called as

Cell Broad casting. It is used to send message to all the customers working

under their network at a time.

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FROM MOBILE PHONES:

Most of the people using mobile phones are not much ignored

in usage of mobile phones. They are unable to see the messages sent by the

service provider. In mobile phones different kinds of menus will be

displayed. For sending a message scroll to message option and press OK

button, different options like read, write message etc... Will be displayed.

For writing message scroll to write message option then type the required

message press ok button then it request for destination mobile number, type

required number and ok button, message sent will be displayed on the

screen. if delivered a report is received that your message is delivered. Same

in reading a new message received.

FROM WEBSITES:

A new era in sending SMS to mobiles is from web sites. Most of

the sites are providing free service for all it you have to do is to register your

number to access your mail account.

MOBILE TO MOBILE:

Scroll the message menu on your phone and then enter into it then

again scroll to the required option after typing the message press OK button

then type the destination number, your message will be delivered.

FROM EMAILS:

We can send SMS from email also here the destination phone number

acts as mail id to send the message

Ex: [email protected]

FROM MOBILE TO EMAILS:

Type the mail id and text message and send it to relate serviceprovided number (4333 for idea) it will send your message to the

corresponding mail.

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FROM MESSENGERS:

In the present years chatting is easing the intension of the people.Most of them are spending their valuable time in cyber cafes. We can send

SMS to mobile from messengers and can able to access messengers on our

mobile phones for chatting, just like chatting in internet. For example yahoo

and rediff's.

We cannot able send SMS from net to mobile phones but

we can access yahoo messenger on our mobile phone for it we had to

configure the site, just type " in [yahoo id][password]" at the place of yahoo

id place your email id belongs to yahoo at the password give your password

and the send the message to 8242 for yahoo this command will allow tologin into yahoo messenger and displays a list of friends who are on online.

If so it displays your status to all online users as "I am on SMS" from here

the same process how you will be in chatting. Just type the ID and message

and send to 8242. The same as rediff's.

ACCESSING OF MESSANGERS:

We can also access messengers on our mobiles. After accessing we

can chat as usually like chanting in messengers.

For sending a SMS to mobile phone from E-mail, login to your

mail account type the id for example [email protected] (XXX )stands

for mobile number then type message and press send button .The message

will be delivered.

SENDING AN EMAIL FROM MOBILE:

We can also send emails from your mobiles for it you had to do is just

type ip address, subject and message and send to short message servicecentre (4333 for idea) it will send the mail to destination after reaching a sent

report will be send to sender. We can also send fax message from mobiles by

selecting fax option.

Till now we had seen that for sending SMS we require mobile phone

or pc but in future we can able to send SMS from land phones also the rising

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sun innovations company belongs to Rajasthan has build new software

'AJAY SANDESH' if this software was deployed by basic telephone service

providers then we can able to send SMS from land phones to mobiles for

example TATA basic phone service is providing this service at present. It

provides a CDMA phone with message options with this we can able to send

and receive messages.

Besides all these now a days we can able to get different kinds of

messages like download ring tones, logos, screen savers, pictures etc., a new

technology like capturing photos and sending them to other mobiles is

provided by a new mobiles phones like NOKIA 9210. All the data part and

the graphic part is send to mobiles with the help of this short message

service.

SMS is allowing only sending text messages and picture messages at present but a new technology was going to be implemented to send

multimedia files by 3G network. With voice and graphic messages we can

able to send video clips also. We can able to get rig tones on our mobile

phones through SMS service. When your ring tones are provided by

different sites and also India times and some famous channels are supporting

to send these ring tones in the form of messages to mobiles.

GENERAL PACKET RADIO SERVICE

General packet radio service (GPRS) is expected to drastically change

the mobile telecommunication services landscape when it becomes deployed

and widely available. It is generally understood to initially be an overlay

network on existing, circuit-switched GSM Network, offering a migration

path towards 3rd Generation Networks

GPRS seems ideally suited for delivering internet-based, value-added

services to mobile Subscribers. Yet it appears, too, that focusing on GPRS,

network operators and service providers might overlook an existing, low-cost bearer that offers such a service platform SMS

This document is intended for network operators and service

providers. It helps position SMS particularly in GPRS networks, and it aims

at raising the awareness of possibilities offered by SMS

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The reader is presented with a view on how SMS-based value-added

services can be created now and ported to the GPRS future, using a proven

technology as a highly attractive commercial option, while protecting all

investments in network infrastructure and service application..

GPRS helps overcome current SMS deficiencies with respect to

latency, throughput and radio resource usage efficiency,

delivering short message as packets data

GPRS together with sophisticated network signaling procedures,

permits quick and reliable content delivery, corresponding to a

Mobile Web Page, in one single transaction, provide the

appropriate Short Message Service Centre support is available.

Arrival of GPRS-based services will require appropriate sub

scriber notification via SNS.

Short Messaging as such is the first, instantly available service

for GPRS, with GPRS helping to handle the rapidly growing

SMS traffic.

SMS is particularly attractive in initial GPRS deployments dueto

- Limited GPRS network coverage (GPRS islands).

- Handset availability and cost,

-Initial low GPRS data rates, significantly reducing the

theoretical throughput advantage of GPRS

The ability to quickly and cheaply offer value-added services based

on SMS (and SMS over GPRS) to pre-paid subscribers.

SMS offers a value-added service platform at a low total cost,

reaching an unrivalled subscriber base of practically 100%

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THE PERFECT BEARER: GPRS

Information delivery to mobile subscribers should be fast, cost-

effective, reliable and network resource-efficient. GPRS is commonly

attributed with all of these properties. The packet data traffic channel

(PDCH) is only occupied when data is being transmitted, the Layer 3

message length extends to 1500 octets, the latency of 20 ms is relatively low

and the data rates possible seem to be sufficient. GPRS is regarded as the

perfect bearer for Internet access

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THE ATTRACTIVE OF SMS

Presenting the bare technical facts of SMS does not fully reveal the

attractiveness of SMS as a platform for deployment of value-added services.In circuit-switched environment, only signaling channels are used for

message delivery (SDCCH or SACCH), providing bit rates of 660/150 bit/s

(SDCCH/SACCH respectively), with a maximum Layer 3 message length of

140 octets.

However, SMS offers store-and-forward capability, full tele service

characteristics permitting direct content presentation to the user, and is

available both in GPRS and non-GPRS networks or coverage areas. Short

messages delivered via GPRS may be considered as additionally encoded

data, reaching the user as packets over PDCH. The message length limitationcan be overcome through Segmentation and Re-assembly functionality in the

SMSC supported in Logics Telepath SMSC. The segmented data can be

delivered within one transaction, but in multiple, concatenated short

messages.

The following figures show schematically how information may be

delivered to mobile

Subscribers using SMS as a bearer in a GPRS network.

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ADVANTAGES OF SMS

Content providers and operators are keen on offering informationalready available on the internet to mobile users. However, some constraints

related to the size and capabilities of mobile stations are likely to impede

direct Internet access even using GPRS handsets. The data rates initially

offered may also lag behind expectations. Gateway nodes between Internet

and GPRS networks or micro browsers for GPRS phones or both are

required.

Wireless Application Protocol (WAP), widely accepted and endorsed

by all major players in the mobile telecommunications arena, allows for

delivering web pages to mobile devices. The web pages usually have to be

adapted by a WAP gateway. WAP defines a variety of bearers, includingSMS and GPRS, or SMS over GPRS.

Users may request certain, chargeable information, using SMS-MO, a

circuit-switched data call or an Unstructured Supplementary Service Data

transaction. Content delivery would be carried out in several mobile-

terminated short messages, within only one network and air interface

transaction. Even if GPRS is the bearer of choice for content delivery, SMS

may be used to reliably notify users about certain conditions, prompting

them to request a service.

Depending on the operator or the service provider choice, the SIM

cards may be modified to present the SM contents to the user appropriately,

e.g. through a WAP-enabled browser.

Even considering the industrys ability to offer technically advanced

products at drastically reduced prices, it will take some time before the

GPRS target changes from an early-adopter market segment to a mass-

market.

SMS ATTRACTIVENESS

While the appropriate GPRS-enabled equipment is currently not

available, the market for value-added services is there instantly, as is a

popular bearer, SMS. Whilst first GPRS deployments are expected in the

second half of 2000, SMS, which is experiencing dramatic growth

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throughout the world, is available virtually everywhere. Using SMS as a

platform for deployment of value-added services offers numerous

advantages to network operators, service providers, content providers and

users.

Immediate service deployment

Services deployed now are instantly available to all users and could generate

revenues to compensate for the initial investments. These service

deployments are future-safe, since SMS can be used in GPRS networks, with

an even greater delivery efficiency, success rate and speed.

Service continuation and migration

Service continuation in GPRS networks is guaranteed: once a gatewaynode and an SMSC have been installed and services deployed, the contents

and the service no longer require any adaptations to the network technology

used. In fact, the bearer used may be transparent to a WAP-based application

Infrastructure inventory.

Investment in SMS infrastructure helps to cope with the currently

growing SMS traffic, while also offering the scalability required when value-

added service become even more widely accepted. The market for low-cost

messaging service is expected to still serve by SMS in GPRS phase 2

networks, providing a continued need for SMS infrastructure. So varying

operator requirements can be fulfilled with the SMS infrastructure available.

Technology-independent applications

Be widely accepted, contributing to further growth of SMS traffic. Content

and service providers benefit from the SMS availability in different

networks. Contents provision and adaptation is required once, with the

service being independent of the underlying network technology. This may

be important if due to regulatory issues, coverage aspects, visited networkcapabilities or further reasons, certain other bearers (circuit-switched data,

GPRS, High-Speed Circuit-Switched Data) are not available, and yet

common look-and-feel value-added services are to be offered.

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Store-and-forward capability combined with a choice of delivery

mode

Logics Telepath SMSC offers a choice of delivery modes to fulfill

possible requirements of a variety of applications. Secured delivery can beavailed of. The store-and-forward capability, essential for messaging

services, offers advantages when SMS is used for more mission-critical

content delivery. Logics Telepath SMSC also offers the unique advantage

of Express message delivery mode, permitting extremely high message

Throughput and eliminating the latency associated with the store and

forward feature, yet providing a certain level of guarantee through its

transient storage and short term retry functionality. Therefore, short-term

delivery problems are efficiently dealt with in cases where longer term

storage is not required due to the nature of the content.

Short Messaging and Multimedia Messaging as GPRS

Applications

The arrival of GPRS greatly helps to handle the increasing traffic load.

In initial GPRS deployment SMS may prove to be the most popular

application, with operators.

Deliberately diverting SMS traffic to GPRS network in order toachieve a balanced network Load. Also, considering the popularity of SMS

among young users it is likely that multimedia Messaging will

The ability to dynamically choose GPRS or a circuit-switched bearer

based on actual network conditions, thus offering a higher level of guarantee,

may be regarded as the key advantage of SMS. Otherwise this issue would

have to be addressed within the application, unnecessarily increasing its

complexity.

Service definition may include a content-dependent bearer selection or

a bearer escalation according to the bearers available. Whilst SMS or SMS

over GPRS would usually satisfy service requirements, GPRS may be useddirectly if it is required and available. The following figure 3-1 shows the

shift in the SMS role model, using the analogy of a bus and a fast train as a

means of transport. The SMS bus is loaded onto a GPRS train be cause

it is faster, but uses normal roads where no train is available.

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CONCLUSIONS

When defining, creating and deploying value-added services, several

bearers have to be considered. Depending on service characteristics and

requirements, some may be more or less suited than others. Logics productportfolio reflects the strong belief in multiple bearers for different purposes.

Particularly, SMS is seemed to supplement GPRS and viewed as a

complement to GPRS. GPRS does not offer a replacement for SMS, nor

does it diminish SMS importance in mobile networks. Furthermore, as the

SMSCs will generally evolve into Multimedia Message Centers tailored to

specific needs of mobile users, the investment in SMS-related infrastructure

is protected even better.

The short message delivery path will change with the arrival of GPRS,

increasing the delivery success rate, reducing delivery time, but, because the

same SMS is used, there is no effect on the service itself or the possible

presentation to the user. The entire service environment remains unaffected

by network enhancements and does not need to change because of GPRS.

REFERENCE

WAP -Predzolwww.google.com\sms.htm

www.google.com\gprs.htm

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CONTENTS

INTRODUCTION:

HISTORY

WHAT IS SMS?

WORKING

FROM MOBILE PHONES

FROM WEBSITES

MOBILE TO MOBILE

FROM EMAILS

FROM MOBILE TO EMAILS

FROM MESSENGERS

GENERAL PACKET RADIO

SERVICE

SENDING AN EMAIL FROM

MOBILE

THE PERFECT BEARER: GPRS

THE ATTRACTIVE OF SMS

ADVANTAGES OF SMS

SMS ATTRACTIVENESS

CONCLUSIONS

REFERENCE

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A

SEMINAR

REPORT

0N

Submitted by

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K.V.Koteswara Rao,

Roll no: 36,

M.C.A 2nd Semester

15

Documents

Working of Sms