RAHUL VYAS

Experience

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  Smrti netcom pvt limited bhopal

  Sept 2011 - Feb 2012

  Trainee

  Taking Training Of CCNA from Smriti netcom Bhopal (M.P.)

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  Airtel

  Sept 2012 - Jun 2017

  Network Maintenance Team BSS Support Engineer

   Physical media routing from Fiber Pop node to local RBS,NODEB & E-NODEB for 2G,3G & 4G Rollout. Manage the migration activity of 2G, 3G & 4G sites on MW hope in case of rearrangement. Manage the rectification progress on field related to Unmanaged MW NEs. Track the rectification progress on field for BER alarms, Degraded RXL, & other service affecting alarms on MW Links on daily basis. Configuration & Performance of all the MW (PDH, SDH & XPIC) Links. Definition of OSPF, PPP, Net Address Default gateway & Static routing through CLI. Provide support to field team in changing the O&M IPs during VLAN Separation & ATM to IP of 3G, 4G sites. Good knowledge of Ericsson MINI LINK 6651,6691,6692,6693 and TN 2P, 6P, 20P. Drive the activity of ATM to IP & VLAN Separation of 3G sites in MP. Preparing Scripts for 3G, 4G site integration as per plan given by RF Planning & TXN team. Analysis & Assure technical resolution of 3G, 4G Alarms with help of WRAN & field team. Good knowledge of LTE Basics, Interfaces, Protocols. Migration of 2G, 3G and 4G sites into new Mux Pop nodes.  Good Knowledge of Ericsson DUW 310, DUS 3101 and Baseband 5216 & 6630 on commissioning and restoring sites from backup and scripts. Show less

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  Jio

  Jul 2017 - Apr 2018

  Field Engineer

   Monitoring & improving LTE KPI’s by reducing SINR, PCI interference & SIB issues. Improving Low throughput cells by assigning different modulation schemes depending on TA counts. Analyze customer complaints & take necessary actions to resolve. Provide Feedback for site planning, in-building solutions planning & optimization. Proposing small cells requirement, coordinating their deployment, & coverage verification. Periodical Drive/walk test of Macro site, Micro site, ODSC, IBS, small cell & Wi-Fi. eNodeB, small cell & Wi-Fi Network Operations & maintenance. Show less

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  Larsen & Toubro

  May 2018 - Aug 2020

  LTE Testing Engineer

   Sound LTE technology knowledge LTE Architecture & Interfaces, L1, L2 L3 Layer Protocols NAS, RRC, PDCP, RLC, MAC, PHY, Frequency acquisition, Initial acquisition, Cell selection, RACH Procedure, Authentication, Security, Attach Procedure, Handover, VOLTE, SRVCC, Carrier Aggregation, and CSFB. Good knowledge on LTE Network elements E-UTRAN,EPS, E-Node B, MME,S-GW,PDN-GW,PCRF and their Interfaces LTE-Uu, X2, S1- MME, S1-U and S5/S8. Hands on Experience on Ericsson and Samsung EnodeB and Qualcomm MSM Modem, Simulator/Emulator tolls like CMW-500, Spirent-VR5. Experience in IMS architecture with nodes (P-CSCF,I-CSCF,S-CSCF) and end to end call flow including IMS registration, VOLTE call flow. Configuration eNB side to perform LTE feature test and analysis UE logs Troubleshooting on failure case. Having additional knowledge on data protocols like TCP/IP, UDP. Good communication skills and excellent team player. Closely work with testing team and Engineering teams for the execution of test cases. Performing log analysis by analyzing call flow messages using layer3. Log Analysis experience with various tools like QXDM, QCAT. Basic knowledge on 5G NR . Show less

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  HCLTech

  Apr 2021 - now

  Technical Lead

   PCRF Feature and performance Testing ATT & TMO - Do the performance test for various setups on VMware,RHOSP like ,AIO,HA, GR, etc which apparently is a production environment, and monitor various KPI’s in it using Grafana.  Run the performance scripts using Caliper tool,Jmeter and monitor the statistics there on interface level such as Gx,Rx,Sy etc and analyze the issues/errors using monitor log application and fix them accordingly.  Perform Fresh Installation & ISSM Upgrade for various sprints, releases etc. Also perform ISSM Upgrade which involves upgrading of newer vmdk files.  Perform Normal upgrade which involves upgrading the ISO image.  Compare the baseline values and invoke performance test, raise the CDETS in case of any discrepancy, follow it up with Dev and CX lab teams. Responsible for requirement gathering, HLD,LLD Preparation, understand the requirement and prepare the test cases.  Run various automation test suits like P1/2/3 Resiliency, Longevity, build validation through automation, patch validation and Noisy CPU/Memory I/O - Reproducing the live issue scenario in lab and analyzing the system behavior. Feature Testing, Sanity Testing ,System Testing through PATS (Manually) ,TAAS (Automation) and resolve issue through GIT Hub configuration file . Performing Build Validation through Automation Tool (TAAS). Writing Test case for Feature Testing through SFS and Execute Through PATS on HA ,GR CPS (PCRF ) SUT .  Having good understanding of LTE Call flow perspective of EPC core and its entity . Having fair understanding of Docker,Container,Kubernetes. Having Good Understanding of 5G Call flow and Its core entity. Show less