Generic selectors
Exact matches only
Search in title
Search in content
Search in posts
Search in pages

GPRS Detach

Viewing 10 posts - 1 through 10 (of 10 total)
  • Author
    Posts
  • #58895 Reply
    RK
    Guest

    Dear Pix,
    Can you help me with SGSN, GGSN. the after Uplink GPRS attach, then Downlink GPRS detach. Scenerio as: subscriber is stored in Siemens HLR has to pass with Ericsson SGSN and GGSN. Routing Area is also Failed and Packet Service is also not attached. Can you help me with this. what about GT routing ?

    #58896 Reply
    Pix
    Guest

    RK,

    I’m sorry, the core network is clearly not my area of expertise. Perhaps you should wait for Pan to come around…

    And also, your question is not clear at all. Could you try to rephrase it ?

    #58897 Reply
    C300G
    Guest

    Detach or attach reject?
    Who is detach initiator?

    #58898 Reply
    RK
    Guest

    Dear C300G,
    its Attach Reject and its initiator is DL as PS attach Reject.
    1)EGPRS Packet Dowblink Ack/Nack: No retransmissions are requested and this message indicates acknowledgement of all RLC data in the TBF
    2) GPRS mobility management messages
    GMM cause
    Cause value : (17) Network failure
    T3302 value
    Unit : (1) Value is incremented in multiples of 1 minute
    Value : (12) 12 minutes
    3) Packet Power Control/Timng Advance:
    MAC header
    Payload type : (1) RLC/MAC block contains an RLC control block that does not include the optional octets of the RLC/MAC control header
    RRBP : (0) Uplink block with TDMA frame number = N + 13
    S/P : (0) RRBP field is not valid
    USF : (0) Reserved for control message on PACCH
    4) Packet Control Acknowledgement (8-bit):
    CTRL_ACK : (3) The MS received two RLC/MAC control blocks with the same RTI value, one with RBSN=0 and the other with RBSN=1

    #58899 Reply
    C300G
    Guest

    1. Does subscriber have permission in his HLR profile on GPRS network access mode?
    2. Does subscriber have permission in his HLR profile on roaming in that SGSN (if he is roamer) ?
    3. Does HLR accessible by SCCP (E.214 & E.164 addresses) from that SGSN ?
    4. Does SGSN accessible by SCCP (E.164 addresses) from subscriber’s HLR ?

    #58900 Reply
    RK
    Guest

    Dear C300G,
    All your questions have Answers: YES.

    #58901 Reply
    C300G
    Guest

    More questions:
    1. Is that a mass problem?
    2. SAU limit on attach in SGSN not exceeded?
    3. Can any another subscriber from the same HLR attach to that SGSN?
    4. Can You capture SS7-trace of AUTH,LU,ISD sessions btween SGSN and HLR? Maybe it’s a MAP version negotiation conflict between SGSN and HLR. Anyway it’s interesting which transaction failed.

    #58902 Reply
    RK
    Guest

    1. Is that a mass problem?–>we are testing on one mobile set only in TEST BTS, no other subscriber in that cell.
    2. SAU limit on attach in SGSN not exceeded? Normal
    3. Can any another subscriber from the same HLR attach to that SGSN?–>yes
    4. Can You capture SS7-trace of AUTH,LU,ISD sessions btween SGSN and HLR? ISD not used. other we can capture.
    Maybe it’s a MAP version negotiation conflict between SGSN and HLR.–>MAP version 3
    which transaction failed –? RAU failed. ALso Segmentation Prohibitted.

    #58903 Reply
    C300G
    Guest

    > ALso Segmentation Prohibitted.
    Segmentation of which protocol units?

    #58904 Reply
    Fresh Opt
    Guest

    Hi,
    Which counter shows the number of routing area updates in Alcatel system?

Viewing 10 posts - 1 through 10 (of 10 total)
Reply To: GPRS Detach
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="">