4G /5G System Engineer Interoperability at F2G Solution

I grew and developed those skills in a lab and on the field

• EPC core architecture (eNodeB, MME, S-GW, P-GW, HSS) network elements, and interfaces.

• 5GNR NSA and SA (gNodeB, AMF, UPF)

• LTE, 3GPP and ETSI standards, LTE interface (GTP-u, S1AP, X2AP, GTPV2, DIAMETER, SIP) functionality.

• 5G, 3GPP and ETSI standards, LTE interface (GTP-U, NGAP, XnAP, HTTP2, SIP) functionality

• Protocol stack (PHY, MAC, RRC, RLC, PDCP layers), Frame structure and Multiple Access technology (OFDMA, TDMA, CDMA, FDMA)

• UE and Radio antenna technologies

• Extensive knowledge on Nokia hardware including LTE eNBs, 5G gNBs, WCDMA NBs, TDD and FDD radios

• Experience on Unlicensed and private bands spectrum: LAA (Band46) & CBRS(Band48).

• LTE /5G NR fundamentals such as 5G Numerologies, Carrier aggregation, Beamforming, mmWave / sub6G, massive MIMO.

• Hands on experience with testing tools like QXDM, QUTS, PCAT, QCAT, BTSlog

• Experience with log analysis and debugging tools such wireshark, QCAT, Emil, BTSlog

• Basic knowledge on 5G ORAN, ORAN architecture, ORAN interfaces (eCPRI, F1, E2, A1, O1)

• Good knowledge of IMS core technology and protocol for VoIP network like SIP, DIAMETER, P-CSCF, I-CSCF, TAS

• Knowledgeable on Multi-RAT dual connectivity technologies (ENDC, NGENDC, NEDC, NR-NRDC)

• Good understanding of measurement events (A1, A2, A3, A4, A5, A6, B1, B2)

• Default EPS Bearer and Dedicated EPS bearer with their QCI and 5QI

• Knowledge on Throughput boosting features (UL TCP Boost, Carrier Aggregation, MIMO, Modulation, Transmission mode) and Power saving features (Power saving mode, DRX, SDRX, cDRX, eDRX).

• Experience in NB-IOT, CAT-1, CAT-M, CAT-4 UE devices.

• Technical expertise with auxiliary lab equipment: power supply, spectrum analyzer, signal generator

• Provided training to team members on new features/test equipment as needed by consulting, supporting and guiding team members and vendors employees.

• Preparation of competence development plan for newly hired test engineer at F2G Solutions.