- Working As LTE RAN Engineer
- Good understanding of 3GPP 4G/5G specifications and 5G gNB
- Experience in Android Mobile and tablet testing, Feature phone testing, and eNB testing in LTE and IMS
Domain for Reliance Jio, Samsung and Nokia.
- Good exposure in IMS architecture with all the nodes (P-CSCF, I-CSCF, S-CSCF, HSS) and having knowledge on end to end call flow
Including IMS Registration.
- Performed LTE and IMS Functional testing, sanity and rapid testing.
- Testing & analysis of PLMN Selection, Cell selection, Cell reselection, RACH procedure, HO procedure.
- Knowledge of LTE/IMS interfaces and protocols (Internal or with GSM/UMTS)
- Review the requirement specs with business team and prepare the test cases as per requirement.
- Involved in the customer raised issues and reproduce the test accordingly.
- Performed LTE-VoLTE End to End Testing and log analysis for the failure causes.
- Logs Analysis for the scenario like IMS Registration and VoLTE calls using QXDM.
- Admission control, reselection, Handover.
- Good knowledge of carrier aggregation
- Good knowledge of NAS, RRC, PDCP, RLC, MAC, PHY layers.
- Testing and analysis of UE Attach Procedure, RACH Procedure and HO Procedure.
- Testing of LTE new features and analyzing the detailed impact on the field.
- Testing and implementation of below LTE/LTE and features
- Log analysis for the UE Initial attach, Cell Selection, PLMN Selection and RACH procedure.
- Default and Dedicated bearer establishment, IMS Registration Procedures.
- Good knowledge E-UTRAN, EPS, E-Node B, MME, S-GW, PDN-GW, PCRF, HSS and their Interfaces and protocols.
- Optimizing RSRP & SINR for SSVsite.
- Layer3 Analysis for CSFB call & PS call (Circuit switched fall back) in LTE.
- LTE Events (A1-A5 & B1, B2-IRAT) &Intra-LTE Handover
- Good knowledge of carrier aggregation. knowledge of NAS, RRC, PDCP, RLC, MAC and PHYLAYERS
- LTE/IMS-VoLTE Protocol Testing.
- knowledge of throughput testing SINR, RSRP ,CQI ,MCS AND BLER.
