Sandeep

About Sandeep

In last 13 plus years, I have worked on embedded system design, real time operating system(RTOS), wireless telecom technologies(4G) like LTE/LTE-A/LTE-U/LAA/Cat-M1/NB-IoT and networking technologies like VoIP(SIP).Working on 4G/5G-NR project.Working experience on LTE-L1 and DSP concepts.Working experience on DSP algorithm for uplink transmit subsystem (PRACH, PUCCH, PUSCH). Worked as a developer in LTE Layer-1/Layer-2/Layer-3 IPR team.Designed and implemented eMTC(CAT-M1) support in Layer-2.Designed and implemented NB-IoT support in Layer-2.Very good understanding eNB QoS scheduler algorithm.Very good understanding VoLTE support in 4G.Optimization of LTE-Layer-2 for 128 UEs support.Worked on Dual cell with 64 UEs on each cell support.Worked on 3xLAA support, 256 QAM in DL and 64 QAM in UL with 3xLAA supportVery good understanding of RTOS, embedded systems and multi-threaded environment. Very good expertise to work on project which developed from start.Always love to lead the team from front handled multiple team with 10+ people and deliver successfully.Strong C/C++, trouble shooting and problem solving skills.Involvement in system design architecture for LTE- L2/L3(MAC,RLC,PDCP,RRC) at eNB and UE side.Very good exposure LTE end to end architecture and throughput optimization.Programming skill : C, C++,TCL script, python, UNIX Shell script.Protocols skill : 4G/5G-NR, eNB PHY, MAC/MAC-Scheduler, RLC, PDCP, RRC, S1AP, VoIP-SIP.Tools:Git, gerrit, prism, perforce. Debugging Tools:Wireshark Plug-in, QCAT/APEX/QXDM, Purify/Val grind, Purecov/GCOV,VTune, T32, gdb.

Experience

1. Staff Engineer(Lte-l1 L2 Dsp Firmware Engineer)

   Qualcomm

   Nov 2017 — Present · Hyderabad, IN

   Worked as a developer in LTE Layer-1/Layer-2/Layer-3 IPR team.Working on DSP algorithm for PRACH and PUCCH/PUSCH channel decoding(UL channels) Working on eMTC(CAT-M1) support in Layer-2.Working on NB-IoT support in Layer-1/Layer-2.

Education

• Maharshi Dayanand University

  B.Tech, Electronics

  2002 — 2005