Sagar Somashekar

About Sagar Somashekar

Experience details: Total 13 years 6 months of experience in Wireless Communication, Signal Processing, RF (Radio Frequency) and Antenna domain with MTech in Signal Processing and Communication from IIT Kanpur 2 years of experience in NR 5G gNodeB Baseband (BB) physical layer(L1) algorithms design, development, optimizing, debugging, and testing in Cloud based platform 3.25 years of experience in NR 5G UE Simulator’s L1 algorithms design, development, optimizing, debugging, and testing in DSP based SoC platform 1.5 years of experience in LTE 4G eNodeB PHY algorithms design, development, optimizing, debugging, and testing in Cloud based platform-Baseband Physical Layer(L1) Algorithms Design and Development: Hands on experience in the industry for about 9 years and in the academia for about 2 years Design and development of low complexity MMSE (Minimum Mean Square Error) gNodeB algo for PUSCH Design and development of Baseband physical layer(L1) gNodeB algorithms for 5G NR PRACH Design and development of UE Simulator’s L1 signal processing chain for 5G NR PUSCH, PUCCH and SRS Design and development of Baseband physical layer(L1) eNodeB algorithms for 4G LTE PUSCH and PRACH-End to End Integration and Testing in 4G/5G: Testing and debugging of integration of 5G gNodeB L1 algos with L2+ layers in lab with UE simulator (Split 7.2x Architecture. XRAN/ORAN interface)o NSA (Non-Stand Alone) mode - 20MHz FDD sub6o SA (Stand Alone) mode - 100MHz TDD sub6-C-Programming and MATLAB: 5 years of hands-on experience with C or MATLAB in algorithms design, development, debugging and testing Floating- and fixed-point implementations of physical algo in C and MATLAB-Debugging skills: Debugging issues during development phase, lab testing phase and testing phases at customer place and System Integration Testing (SIT) Hands on with log analysis, handling test equipment and UE simulator-3GPP Spec: 4G: 36.21x series 5G: 38.21x series-Technical Knowledge: Wireless Communications, Digital Signal Processing, Estimation and Detection Theory Digital Communications, MIMO and Massive MIMO, OFDM, Beamforming, RF and Antennas Concepts- CPU Cycles and Memory Optimization of Baseband physical layer(L1) algorithms using AVX concepts and intrinsic

Experience

1. 6g Ai-ml 5g 4g Wireless Systems Engineer

   Apple

   Aug 2024 — Present · Bengaluru, IN

   5G / 4G - Working on signal processing chain and call flow analysis of PHY (L1 or Baseband) Layer.Also, working on call flow analysis of other layers in the protocol stack (MAC, RLC, PDCP and RRC layers).

Education

• The National Institute Of Engineering, Mysore

  Bachelor of Engineer, Electronics and Communications

  2006 — 2010

• Indian Institute of Technology, Kanpur

  Master of Technology (MTech), Signal Processing, Communications and Networks (SPCOM)

  2013 — 2015

Skills

• Wireless Communications Systems
• Antennas
• Data Structures
• Radio Frequency (Rf)
• Channel Estimation
• C
• Programming
• Labview
• C++
• Matlab
• Electronics
• Antenna Measurements
• Signal Processing
• C Programming
• Spectrum Analyzer
• Rf Testing
• Algorithms
• Testing
• Rf
• Latex
• Digital Communication