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GSM (Global System for Mobile Communications) * Provides basic data services * Provides voice service ... C Spire/Cellular South forum

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    hayden's Avatar
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    Post Network Types explained in brief... GSM, GPRS, CDMA, Mobitex, EDGE

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    GSM (Global System for Mobile Communications)
    * Provides basic data services
    * Provides voice service through digital network
    * SIM card (Subscriber Identity Module card) stores phone number, connection information, and may store an address book.
    * This allows a user to switch devices without needing to contact the service provider.

    Note: BlackBerry’s can not send / receive email, PIN’s, or browse the internet with only GSM (GPRS is required).

    GPRS (General Packet Radio Service)

    * Extends the GSM network
    * Allows for advanced data services
    o Use device as Modem
    o Use device as web-browser
    o etc
    * Data transmission is significantly faster than GSM (up to 54 kbps)

    Note: 'gprs' (without the capital letters) aka 'Sleeping gprs' on a blackberry indicates that service exsist; but your device cannot register on it. Try recycling the handset or the radio.

    CDMA (Code Division Multiple Access)
    * Technology is patented by Qualcomm
    o As such all CDMA BlackBerry’s use Qualcomm processors and network technology.
    o More expensive to build then GSM / GPRS devices
    o Processor is slower than on the GSM / GPRS devices
    * BlackBerry’s use CDMA 1x
    * RTT
    o Provides maximum data rates up to 300 kbps
    o Only a small fraction (50 – 60 kbps) of this is available today

    Mobitex (Two-way packet-switch network)
    * Originally designed for text pagers
    * Used by the BlackBerry 95x, 85x
    * Network coverage is limited to metropolitan areas
    * Radio uses very little power, allowing batteries to remain charged for several weeks
    * Mobitex devices are being phased out by Research in Motion

    EDGE (Enhanced Data for Global Evolution)
    * An extension to the GSM / GPRS networks
    o More than three times faster than GPRS
    o Average download speed of 100 – 130 kbps
    o Burst speeds up to 200 kbps
    * Not yet supported on BlackBerry devices
    * Will be available the next generation of Blackberry devices including the 8700 series.
    Not included:
    o TDMA (Time Division Multiple Access)
    o FDMA (Frequency Division Multiple Access)


    Last update: 2005-10-05 18:12

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    Re: Network Types explained in brief... GSM, GPRS, CDMA, Mobitex, EDGE

    so help a dummy Which of these does Nextel run under?
    Have a Great BB day

    DCFROE
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    Re: Network Types explained in brief... GSM, GPRS, CDMA, Mobitex, EDGE

    Currently that would be the "integrated Digital Enhanced Network" (iDEN). I don't believe Hayden meant for this list to cover everything. Besides iDEN, others where not mentioned (i.e. DataTAC).

    Please see:
    http://www.blackberry.com/products/s...networks.shtml

    And for an EDGE whitepaper:
    http://www.ericsson.com/products/whi..._technical.pdf


    Gerald W. Gaston

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    Excellent,,, description,,, we have a couple Flash that show apps one can run at viasip and googaya.
    Regards,
    -E
    -E
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    http://viasip.com

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    Re: Network Types explained in brief... GSM, GPRS, CDMA, Mobitex, EDGE

    Mobitex is being phased out? I was gonna try to see if I could revive my 950. Oh well.

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    Re: Network Types explained in brief... GSM, GPRS, CDMA, Mobitex, EDGE

    Maybe someone could post an explination of EVDO?

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    How do I activate GPRS on my new BB Pearl? I don't want to pay for Edge and my T-Mobile MDA lets me send and receive data both mail and web over GPRS for free.

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    layoub, Welcome to PinStack.

    You activate GPRS on your Pearl the same way you activate EDGE. You have to have the BlackBerry Data Plan. They use the same data network, it's just an upgrade to the towers to switch from GPRS to EDGE. There is no diffence in service or cost, only speed.

    And you got Free GPRS on the MDA from TMO? MDAs must really not be selling on TMO.

    Let us know if there is anything else we can do to help with your BB.

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    can I use 8707g for GPRS connection? but I can't see any gprs or GPRS on screen.

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    Re: Network Types explained in brief... GSM, GPRS, CDMA, Mobitex, EDGE

    What exactly is a 3G network?
    "What does it profit a man to gain the whole world yet lose his soul?" -Jesus Christ

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    Re: Network Types explained in brief... GSM, GPRS, CDMA, Mobitex, EDGE

    So since Sprint and Verizon both use CDMA networks there data speeds would be the same if I were to use my cell as a modem?

    My friend has a Sprint Treo 700 (Palm OS) and I am using a Verizon BB 7130e, and it seems that his internet is much faster then mine. Is this a network thing or a hardware thing; or am I just trippin?

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    Re: Network Types explained in brief... GSM, GPRS, CDMA, Mobitex, EDGE

    Quote Originally Posted by hayden

    GPRS (General Packet Radio Service)

    * Extends the GSM network
    * Allows for advanced data services
    o Use device as Modem
    o Use device as web-browser
    o etc
    * Data transmission is significantly faster than GSM (up to 54 kbps)

    Note: 'gprs' (without the capital letters) aka 'Sleeping gprs' on a blackberry indicates that service exsist; but your device cannot register on it. Try recycling the handset or the radio.



    Last update: 2005-10-05 18:12
    You mean changing the handset? How do you recycle the radio? I'm currently experiencing this problem.

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    Re: Network Types explained in brief... GSM, GPRS, CDMA, Mobitex, EDGE

    Quote Originally Posted by tuscat
    You mean changing the handset? How do you recycle the radio? I'm currently experiencing this problem.
    No, it means to either Power Down/Power back up the Device, or the Radio. To recycle the Radio you Use the Radio Off Icon to turn it off, then the same Icon to turn it back on.

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    Re: Network Types explained in brief... GSM, GPRS, CDMA, Mobitex, EDGE

    i can see "gprs" @ my bb 7730 but always data conection refused. why?

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    Re: Network Types explained in brief... GSM, GPRS, CDMA, Mobitex, EDGE

    Quote Originally Posted by NerdWeez View Post
    What exactly is a 3G network?
    a 3G network is literally 3rd Generate mobile network. But for most gsm users, it will be the HSPA (High Speed Packet Access) that you will be using (if your phone is capable) and a new phone frequency of 2100 mhz (most european/asian countries will be using that, I know that Rogers wont be, but you don't need that frequency to use HSPA). HSPA is like what edge was to gprs, HSPA is supposed to be up to 15mbits/s like high speed at home. In my province of Manitoba, the laptop connect cards can reach upto 7Mbits/s.

    Quote Originally Posted by malikasif View Post
    i can see "gprs" @ my bb 7730 but always data conection refused. why?
    Do you have a data plan associated with your account? and lowercase gprs as opposed to capitalized GPRS usually means you do not have a data plan. If you know that you are subscribed to a data plan, you might have to restart ur berry by taking out the battery, or if that doesnt solve it, call your carrier.

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