US 11,723,105 B2
5G N3 data plane enrichment using N11 interface in a monitoring system
Yashovan B. Neelakantamurthy, Los Gatos, CA (US); Sandeep Prasad, Pleasanton, CA (US); Abhishek Saraswati, Santa Clara, CA (US); Tauras Liubinskas, Lexington, KY (US); Domenico Aldrovandi, Sassuolo (IT); Shilpa Bansod, San Jose, CA (US); Vijayalakshmi Seshadri, San Jose, CA (US); and Daniel Andrew Hill, Murphy, TX (US)
Assigned to NetScout Systems, Inc., Westford, MA (US)
Filed by NetScout Systems, Inc., Westford, MA (US)
Filed on Aug. 31, 2021, as Appl. No. 17/463,472.
Claims priority of provisional application 63/223,806, filed on Jul. 20, 2021.
Prior Publication US 2023/0025738 A1, Jan. 26, 2023
Int. Cl. H04W 76/22 (2018.01); H04W 12/72 (2021.01); H04W 84/04 (2009.01); H04W 8/08 (2009.01); H04W 4/029 (2018.01); H04W 76/10 (2018.01)
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
OG exemplary drawing
 
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.