Generic selectors
Exact matches only
Search in title
Search in content

SMS

Viewing 10 posts - 1 through 10 (of 10 total)
  • Author
    Posts
  • #54548 Reply
    nish
    Guest

    Dear all

    I want the information that once, a particular subscriber send a sms to another guy, what is the flow of the SMS tx.

    #54549 Reply
    Ram
    Guest

    To be simple, the flow will be from MS – MSC -SMSC – after enquiry with HLR – MSC – MS.

    #54550 Reply
    nish
    Guest

    Dear Ram

    I want the signalling flow…….like SDCCH, TCH…so on

    #54551 Reply
    pix
    Guest

    RACH (UL): channel request
    AGCH (DL): immediate assignment
    SDCCH (UL&DL): DTAP phase (authentication)
    same : SMS transmission
    Channel release

    -end-

    #54552 Reply
    nish
    Guest

    Dear Ram

    thanx a lot dear

    #54553 Reply
    pix
    Guest

    you’re welcome dear

    #54554 Reply
    Sachin
    Guest

    Hey Pix,

    Does SMS floats on SDCCH? Thanks for the information. And what about other supplementary services (like Call hold / waiting tone etc.)

    Sachin

    #54555 Reply
    Pix
    Guest

    Yes, SMS is usually on SDCCH. The only (rare) alternative I know is the “SMS over GPRS”, where a PDCH is allocated to the SMS senders / receivers.

    I’ve never seen it live though…

    #54556 Reply
    Pix
    Guest

    Call Hold and other supp. services are probably on the TCH (but i’m not sure). It seems dangerous to allocate a SDCCH for such “long” procedures, because SDCCH resources are critical and shall not be wasted.

    #54557 Reply
    Pan
    Guest

    I think, that non-call assotiated supplementary services (e.g. Call Forwarding operations) are activated, deactivated, interrogated etc. on SDCCH. But invocation Call Hold during the call is transfered on SACCH. Call Waiting Tone is standart supervisory tone and more likely than not is generated in MS on basis of signals (SACCH) from the network.

Viewing 10 posts - 1 through 10 (of 10 total)
Reply To: Reply #54555 in SMS
Your information:




<a href="" title="" rel="" target=""> <blockquote cite=""> <code> <pre class=""> <em> <strong> <del datetime="" cite=""> <ins datetime="" cite=""> <ul> <ol start=""> <li> <img src="" border="" alt="" height="" width="">