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[Year 2013-14 ] SMs
- 1. MCS Video BE EXTC 2 10-834 Karan More 10-838 Akhilesh Panchal 10-842 Vishwajit Patil 10-844 Nishant Redkar Under the guidance of Prof.Saurabh Mehta This video is considered for ‘Aakash Project’
- 2. Contents Classification of mobile data network What is SMS? SMS today Message size Technical details SMS packet format Classification of SMS Other types Advantages & Disadvantages Summary
- 3. shared overlay Mobile data networks Licensed bands Unlicensed bands Example CDPD Overlay on traffic channels Overlay on signaling channels Example: ARDIS Mobitex Examples: Metricom Ricochet Example GPRS Example SMS Classification of Mobile data networks Independent
- 4. What is SMS ? SMS stands for Short Message Service. Definition Three services given: 1. Short message Mobile Terminated (SMS-MT)/ P2P: Mobile or any software app mobile phone 2. Short message Mobile Originated (SMS-MO)/P2P: Mobile phone Mobile or any software app 3. Short message Cell Broadcast (SMS CB) http://www.cwins.wpi.edu/publications/pown/chapter_9.pdf
- 5. In 2010, sent messages are 6.1 trillion i.e.1,93,000 SMS/sec Massive commercial industry earning $114.6 billion globally SMS was originally designed as part of GSM, but is now available on a wide range of networks, including 3G networks. Challenges SMS today
- 6. Message size Capacity Upto 160 character (for Latin language) non-Latin alphabets (Chinese or Arabic), limit is 70 characters Long SMS can be sent using multiple messages with each User Data Header (UDH) containing segmentation information Responsibility of receiving handset is to reassemble message & present as 1 long message. Standard theoretically permits up to 6 to 8 segment messages http://computer.howstuffworks.com/e-mail-messaging/sms.htm
- 8. SMSC TOWER 1 TOWER 2 SOURCE DESTINATION packets TRAVELLING OF SMS IN THE FORM OF PACKETS.
- 9. SMS Packet format SCA Service Centre Address MR Message Reference PID Protocol Identifier PDU Type Protocol Data Unit Type DA Destination Address DCS Data Coding Scheme VP Validity Period UDL User Data Length UD User Data http://en.wikipedia.org/wiki/SMS_language
- 11. • Flash SMS • Silent SMS www.binbert.com Other types of SMS
- 12. Advantages 1) Texts can be sent to many people at once rather than just one-on-one communication. 2) It is a store-and-forward service 3) No long distance charges for SMS, which are usually charged per text message or paid for through an unlimited subscription fee. 4) It is a communication platform for the deaf and hearing- impaired. http://en.wikipedia.org/wiki/Short_Message_Service
- 13. Disadvantages 1. Pictures, video, sound, and other media are not supported. Multimedia Messaging Service (MMS), supports these larger data transfers. 2. Some users also are charged per text message, which can become expensive if sending hundreds of texts each month. http://en.wikipedia.org/wiki/Short_Message_Service
- 14. Summary • SMS service of mobile is easy as it sends your message very fast and effectively. We liked to explain you the concept of what is a SMS and how does it travels around world wide in your click.
Editor's Notes
- Concept developed in the Franco-German GSM cooperation in 1984 by Friedhelm Hillebrand and Bernard Ghillebaert First proposal for development of SMS was made by a contribution of Germany and France into the GSM group meeting in February 1985 in Oslo The first SMS “Merry Christmas” was sent over the Vodafone GSM network in the United Kingdom on 3 December 1992.
- Transmission between the SMSC and the handset is done using the Mobile Application Part (MAP) of the SS7 protocol Capacity Upto 160 character (for latin language) non-Latin alphabets (Chinese or Arabic), limit is 70 chars long SMS can be sent using multiple messages with each User Data Header (UDH) containing segmentation information Responsibility of receiving handset is to reassemble message & present as 1 long message. Standard theoretically permits up to 6 to 8 segment messages
- When person A sends an SMS to person B, the transmission occurs as shown in Figure 2. The Mobile Switching Center (MSC) is responsible for routing both voice telephone calls and SMS texts and the Visitor Location Register (VLR) is a database that temporarily store information about subscribers that have roamed into its jurisdiction, including the subscriber's identity number (IMSI), phone number (MSISDN), mobile station roaming number (MSRN), authentication data, and HLR address. The Home Location Register (HLR) is a permanent database that is used for the storage and management of subscription and service profiles. The Short Message Service Center (SMSC) is an element in the mobile phone network that is a store and forward service, which allows the message to reach the recipient even if his or her device is unavailable, out of service, or switched off. In addition to forwarding the text message to person B, an acknowledgement that the SMS has been successfully sent is relayed to person A
- cAll data is transferred in a single DCCH SPACH packet
- Anyone reading this must have used an online SMS sending website to send a couple of message to different phone numbers when running short of balance or were just too lazy to fetch the phone from the next room. If you have, then you already have experienced the magnificence of this technology, and if not, please go and do it now. A SMS is a short text message which can be sent over the wireless channel using certain standardized communication methods over the ‘Mobile Application Part’ (MAP) of the SS7 protocol. The GSM 7-bit alphabet encoding scheme limits the maximum payload length to 160 characters. There are a few ways in which the same message can be sent from a computer and we are going to discuss a few of them in the following discussion. The first step to use any technology is, to have a motive. In case of PC based SMS, the motive may vary with the size of organization and the targeted audience base for the SMS. The two broad types of classifications of PC Based SMS technology can be inferred from the following diagram:
- Appears directly on the main screen without user interaction and is not automatically stored in the inbox. Silent msg- Employed to locate a person or to create a complete movement profile. They do not show up on a display, nor trigger an acoustical signal when received.
- 1] F. Hillebrand, ed., Short Message Service (SMS): The Creation of Personal Global Text Messaging (Wiley, 2010). [2] "And the Winners Were ...," The Economist, 4 Dec 08. [3] Alpert, Jed. The Mobile Marketing Revolution: How Your Brand Can Have a One-to-One Conversation with Everyone (McGraw-Hill, 2012). [4] A. K. Talukder and R. R. Yavagal, Mobile Computing: Technology, Applications, and Service Creation (McGraw- Hill, 2006). [5] R. Z. Ahmed, "UK Hails 10th Birthday of SMS," Times of India, 4 Dec 02. [6] S. Kasera, N. Narang and A. P. Priyanka, 2.5G Mobile Networks: GPRS and EDGE, (McGraw-Hill, 2009).
- 3)Because SMS operates on "best effort" delivery, text messages are not guaranteed to be sent and received. Some providers allow users to request delivery reports, either via the SMS settings of most modern phones, or by prefixing each message with *0# or *N