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GSM, GPRS, EDGE presentation

GSM, GPRS, EDGE presentation

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  • 1. 016 Welcome To Warid World
  • 2. 016 - GSM Technology - GPRS Objective: - Understand GSM Technology - GPRS & EDGE By the end of this session, participants will be able to: Today Our key issue is:
  • 3. 016
    • What is GSM Technology:
    • GSM is known as Global System for Mobile Communications
    • This technology started development in 1985 by a French company
    • formerly known as Groupe Spécial Mobile
    • GSM calls are either based on data or voice.
  • 4. 016 GSM Frequencies
      • 900 MHz (Single Band)
      • 1800 MHz (Dual Band)
      • 1900 MHz (Tri Band)
    Higher the frequency GSM network is working on, better the overall service level
  • 5. 016
    •  
    • The Mobile Station (MS)
    • The Base Station Subsystem (BSS)
    • The Network and Switching Subsystem (NSS)
    • The Operation and Support Subsystem (OSS)
    The GSM network can be divided into four main parts:
  • 6. 016 AUC VLR HLR MSC EIR OSS ISDN PSTN PLMN PSDN BSC BTS MS SIM BTS BTS Architecture of GSM Network NSS BSS
  • 7. 016   Mobile Station (MS) A Mobile Station consists of two main elements:   (a) The Subscriber Identity Module (SIM) (b) Mobile equipment/terminal (ME)      
  • 8. 016   Mobile Station (MS)
    • (a) The Subscriber Identity Module (SIM)
    • Protected by a four-digit PIN (Personal Identification Number)
    • SIM card contains a unique IMSI to identify
    • the subscriber to the system.
    •  
    • (b) Mobile equipment/terminal (ME):
    •      
    • Fixed Terminals –
    • mainly installed in cars (Max. Output power is 20W)
    •  
    • Portable Terminals –
    • can be installed in vehicles (Max. Output power is 08W)
    • Handheld Terminals –
    • Maximum allowed output power is 0.1W
  • 9. 016 - Interface between the MS and the NSS - In charge of the transmission and reception It can be divided into two parts:   (a) Base Station Controller (BSC)   (b) Base Transceiver Station (BTS) or Base Station     Base Station Subsystem (BSS)
  • 10. 016   Base Station Subsystem (BSS) (a) Base Station Controller (BSC): (b) Base Transceiver Station (BTS) or Base Station:
    • Controls a group of BTSs
    • Manages their radio resources
    • Exchange functions & power
    • for each managed BTSs.
    • Frequency hopping
    • In charge of handoffs
    • Defines a cell and handles the radio-link protocols
    • with the Mobile Station.
    • Its transmitting power defines the size of a cell.
  • 11. 016 Network and Switching Subsystem (NSS)
    • manage the communications between the mobile users and other
    • users, such as mobile users, ISDN users, fixed telephony users, etc.
    • Stores information about the subscribers to manage their mobility.
    Main Role:
  • 12. 016 Network and Switching Subsystem (NSS)
    •  
    • The central component of the NSS
    • Performs the switching functions of the network
    • - Provides connection to other networks.
    •  
    •  
    •      
    (b) Gateway MSC (GMSC):   - A gateway that interconnects the cellular network and the PSTN. - In charge of routing calls from the fixed network towards a GSM user. (a) Mobile Switching Center (MSC):
  • 13. 016
    • Contains necessary information from a subscriber's HLR
    • to provide the subscribed services to visiting users.
    •  
    Network and Switching Subsystem (NSS) (c) Home Location Register (HLR): (d) Visitor Location Register (VLR):
      • The VLR is always integrated with the MSC.
        • Stores permanent data about subscribers,
        • including a subscriber's
          • Service profile
          • Location
          • Information
          • Activity status
  • 14. 016   - Provides an interface to various networks for data communications.
    • Serves the security purposes such as validity of subscriber
    • Provides the parameters needed for authentication
    (e) Authentication Center (AUC): Network and Switching Subsystem (NSS)
    • Stores security-sensitive information about the mobile equipments
    • Maintains a list of all valid terminals IMEI.
    • The EIR allows to forbid calls from stolen or unauthorized terminals.
    (f) Equipment Identity Register (EIR):   (g) GSM Internetworking Unit (GIWU):
  • 15. 016   - OSS is connected to components of the NSS and the BSC to control and monitor the GSM system. - OSS is In charge of controlling the traffic load of the BSS.  Operation and Support Subsystem (OSS)
  • 16. 016 GPRS (General Packet Radio Service) - Speed: Up to 115 kilobits per second - It is a standard for wireless communications GPRS Basics - Compared with current GSM systems' 9.6 kilobits. - GPRS supports a wide range of bandwidths - Particularly suited for sending and receiving small bursts of data, such as e-mail and Web browsing, as well as large volumes of data.
  • 17. 016 GPRS (General Packet Radio Service) The GPRS Capability Classes Class A 
    • Can be connected to GPRS service and GSM service (voice, SMS),
    • using both at the same time. Such devices are known to be
    • available today.
  • 18. 016 GPRS (General Packet Radio Service) The GPRS Capability Classes Class B 
    • - Can be connected to GPRS service and GSM service (voice, SMS),
    • but using only one or the other at a given time.
    • During GSM service (voice call or SMS), GPRS service is suspended,
    • and then resumed automatically after the GSM service (voice call or
    • SMS) has concluded.
    • - Most GPRS mobile devices are Class B.
  • 19. 016 GPRS (General Packet Radio Service) The GPRS Capability Classes Class C 
    • Are connected to either GPRS service or GSM service
    • (voice, SMS) at the same time.
    • - Must be switched manually between one or the other service.
  • 20. 016 GPRS (General Packet Radio Service) GPRS Multislot Classes are: Class 2  Minimal GPRS implementation Class 4  Modest GPRS implementation, 50% faster download than Class 2 Class 6  Modest implementation, but with better uploading than Class 4 Class 8  Better implementation, 33% faster download than Classes 4 & 6 Class 10   Better implementation, and with better uploading than Class 8, seen in better cell phones and PC Cards Class 12  Best implementation, with maximum upload performance, typically seen only in high-end PC Cards
  • 21. 016 GPRS (General Packet Radio Service) GPRS Service s
    • Point to point (PTP) service:
    • internetworking with the Internet (IP protocols) and X.25 networks.
    • Point to multi point (PT2MP) service: point-to-multipoint multicast
    • and point-to-multipoint group calls.
    • Short Message Service(SMS): bearer for SMS.
    • Anonymous service: anonymous access to predefined services.
    • Future enhancements: flexible to add new functions, Such as more
    • capacity, more users, new accesses, new protocols, new radio networks.
  • 22. 016
      • Get Internet access any time
      • Surf the Internet with super-fast speed
      • Browse contents
      • Send and receive e-mails
      • Send multimedia (pictures, sounds)
      • Download high-quality ring tones, wallpapers, songs,
      • movie clips, videos, animated logos, and themes
      • Receive telephone calls even while browsing
      • And lots more….…
    EDGE (Enhanced Data Rates for Global Evolution) Up to 8 Times Faster Than GPRS Benefits of EDGE
      • Note: GPRS/EDGE compatible handset users will enjoy these services only.
  • 23. 016 EDGE Services
    • Web Surfing (yahoo, google, etc.)
    • Send and receive MMS (pictures, sounds, video clips, text)
    • Download games, animations, wallpapers, video and audio
    • clips, polyphonic tones, true tones, themes, color logos etc.
    EDGE (Enhanced Data Rates for Global Evolution) Up to 8 Times Faster Than GPRS
  • 24. 016 Acronyms GSM : Global System For Mobile Communications GPRS : General Packet Radio Service EDGE : Enhanced Data Rates For Global Evolution OSS : Operation and Support Subsystem NSS : Network and Switching Subsystem BSS : Base Station Subsystem AUC : Authentication Center VLR : Visitor Location Resister HLR : Home Location Resister EIR : Equipment Identity Register MSC : Mobile Switching Center BSC : Base Station Controller BTS : Base Transceiver Station ME : Mobile Equipment MS : Mobile Station SIM : Subscriber Identity Module IMSI : International Mobile Subscriber Identity PSDN : Packet Switched Data Network ISDN : Integrated Services Digital Network PSTN : Public Switched Telephone Network PLMN : Public Land Mobile Network
  • 25. 016 Thanks for your patience Prepared By : Zahid Been Aziz