Transcription of GPRS Attach and PDP Context Activation for a …
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GPRS Attach and PDP Context Activation for a …
GPRS Attach and PDP Context Activation for a Class B Core Network Old Core Network GGSN Site GSM Databases UT SGSN DNSS erver MSCVLR OldSGSN OldMSCVLR GGSN RadiusServer DHCPS erver EIR HLR This sequence diagram was generated with EventStudio System Designer ( ). We explore the sequence of interactions involved in a GPRS terminal attaching to the network. The combined Attach and PDP Context Activation of a Class BGPRS terminal will be covered here. GPRS Attach 1:GMM Attach RequestTMSI,MNC,MCC ,LAC,RAC The terminal initiates theattach procedure after poweron. The message contains thepreviously used TMSI(Temporary Mobile SubscriberId). The mobile networkidentity, the location area androuting area information isalso included in the message. Search for the TMSIThe SGSN (Serving GPRSS upport Node) searches forTMSI in its database. 2:Identity RequestTMSI No entry is found for theTMSI, so the SGSN uses theold location area informationto identify the old SGSN wherethis terminal was beingserved.
GPRS Attach and PDP Context Activation for a Class B Terminal gprs_attach_pdp_sequence_diagram.pdf Cell Core Network Old …
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