CPC H04W 76/22 (2018.02) [H04W 4/029 (2018.02); H04W 8/08 (2013.01); H04W 12/72 (2021.01); H04W 76/10 (2018.02); H04W 84/042 (2013.01)] | 20 Claims |
18. A method comprising:
capturing a first message transmitted over an N11 interface;
extracting at least one type of session ID and a first Next Generation Application Protocol (NGAP) tunnel endpoint identifier (TEID) from the first message, wherein the first NGAP TEID is one of an uplink (UL) type or a downlink (DL) type;
storing the at least one type of session ID and the first NGAP TEID in a first N11 protocol data unit (PDU) session record;
storing the at least one type of session ID in a session details record;
capturing a second message transmitted over the N11 interface;
extracting the at least one type of session ID and a second NGAP TEID from the second message, wherein the second NGAP TEID is the other of the UL type or the DL type for a same PDU session;
storing the at least one type of session ID and the second NGAP TEID in a second N11 protocol data unit (PDU) session record;
capturing a third message transmitted over an N3 interface;
extracting a general packet radio service (GPRS) tunneling protocol (GTP)-user plane (U) TEID from the third message, wherein the GTP-U TEID matches one of the first NGAP TIED or the second NGAP TEID; and
retrieving information associated with the session details record using the GTP-U TEID.
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