Summary
Overview
Work History
Education
Skills
Timeline
Generic

Mohammed Mohseen Sagri

Bangalore

Summary

A seasoned Solution Architect 14 years of a proven track record at Radisys, Cisco, Samsung and Tata Elxsi, I excel in 5G NR gNB design/development, UE and RF conformance spcecification solution development and across-platform integration, showcasing expertise in of 5GNR gNB(CU,DU), 3GPP 4G LTE wireless protocols at Layer 2/Layer3 and Cisco ASR9K routers control plane SW implementation.

Organized and dependable Leader with focused on sustainable design. Highly effective at working with teams of designers and builders to accomplish projects on-time and according to cost constraints. Renowned for driving innovative projects and mentoring teams, my skills in Algorithms, C/C++ programming and leadership have significantly contributed to cutting-edge telecommunications advancements.

Overview

14
14
years of professional experience

Work History

Solution Architect

Radisys
10.2018 - Current
  • Solution Architect,
  • Expertise in 5G (NR), gNB CU, gNB DU, FAPI, Design, Development
  • Expertise in creating efficient and optimized software solutions across different x86, NXP and ARM platforms.
  • Extensive experience on gNB DU(NR MAC, RLC, PDCP, FAPI), gNB CU(RRC, RM, BearerManager, UE Manager), E1 Split (CU-CP, Multi CU-UP, Multi-DU)
  • Highly Skilled in NR Scheduler(QOS Aware, PF, Round Robin, Multi Cell, CA, HARQ, DL/UL scheduling, Resource allocation types, PDCCH allocations, CCE and Search space allocations, LinkAdapatation and Power Control), RRM, MAC design and development.
  • Expertise in integration across multiple Layer1 platforms Phluido, Picocom, Nvidia and Astri intergations.
  • Highly skilled in the End to End TTCN based gNB solution development
  • Expertise in the UE conformance 3gpp 58.508, 38.523-x specifications development
  • Good knowledge on the3gpp rel 17 features - DRX Enhancement, PDCCH Type 2A searchspace, countLinkedCandidates features.
  • Expertise on the PUCCH Format 1 , 3 and PUSCH TransformPrecoding, NonZeroOffsetToCarrier, PUCCH group/Seq Hopping, Multi BWP and Multi CC(DLCA, ULCA),Aperiodic CSI reporting features.
  • Expertise in the GitCopilot and Chatgpt usage, having good skills on the Prompt engineering, RAG model LLM training basic concepts, Python library usage.
  • Expert in Conducting research to evaluate systems design and process efficiency.
  • Support Management and Business team with technical information and estimations and prepare customer proposals.
  • Acted as Product owner, Scrum Master, Reviewer, Architect and Technical assistant for R&D features development,
  • Highly skilled in resource efficient utilization with daily tracking, resource/activities assignment, and creating balance across team members for the learning, design, coding, UT and Verification activities.
  • Customer Proposal Building,
  • Team Trainer and Mentor,
  • New Talent Skill builder, Team Building
  • Supervision & Leadership

Technical Lead Engineer

Cisco
12.2015 - 10.2018
  • Worked on Cisco ASR9k network processor programming and enhancements.
  • Worked as Module lead for - OAM (CFM IEEE 802.1ag and Eoam 802.1ah) protocols platform software and packet control path (Punt-inject) implementation, feature enhancement, bug fixing for Cisco ASR-9000 series of edge routers,
  • Worked in ezchip Micro code programming for packet control path for ASR9K router
  • Worked in gdplane (Cisco based Micro code) programming for packet control path.
  • Good knowledge on CCNA – Routing, Switching and data forwarding

Technical Lead Engineer

Samsung R&D Bangalore
09.2013 - 08.2015

Worked as lead engineer, involved in 4G LTE L2/L3 stack software optimization/development for Low cost MTC (Machine type communication) devices.

Worked in optimization of 3GPP LTE Stack suitable for Machine type communication.
Worked on LTE Advanced features understanding, research, patents implementation and new technical ideas generation.
Worked for Samsung UE LTE protocol development primarily worked in PDCP, RLC and MAC layers.

Senior Engineer

Tata Elxsi
11.2010 - 08.2013
  • As an L2L3 Engineer, worked as a Part of Coding and Unit Testing for MAC layer and MAC scheduler entity.
  • Development SCH Test framework and test benach for LTE SCH for the Multi UE(32UE) and Multi Cell capabilities verification.
  • Design and Implementation of Radio conformance testing (RCT) frame work in L2 - TS 36.141..
  • Design/development and system-integration/IOT for MIMO - transmission mode2 (TM2) and transmission mode3 (TM3 - Transmit diversity and spatial multiplexing)
  • Involved in implementation of DLHARQ feedback management for two TB case (MIMO) and Downlink link adaptation for MIMO, sub band scheduling and Subband CQI reporting. Rresource allocation Algos, PDCCH search space algo,
  • Involved implementation and upgrading the PF(Proportional Fairness) scheduler to Round Robin Scheduler and Prioritized scheduling of the control messages and HARQ retransmissions.
  • Throughput and stability fixes.

Education

Bachelor of Computer Science - Computer Science

VTU Belgum
Karanataka India
05-2010

Skills

  • Solution Architect
  • 5G New Radio (NR), gNB DU, gNB CU, LTE eNB/UE Solution design and development
  • Across Platforms Integration and porting x86, NXP, ARM
  • UE/RF conformance Specification 38508, 38523x Solution design and development
  • gNB DU NR SCH, FAPI, RRM, MAC, RLC,
  • gNB CU CP, CU UP, PDCP, Crypto, SDAP, RRC, RRM, Bearer Management
  • Phy layer platforms Phluido, Nvidia, Picocom, and Astri integrations
  • Progamming Langauage C, C, Python(Basic)
  • Resource Estimations, Planning & Organizing
  • Customer Proposal Building,
  • Team Trainer and Mentor,
  • New Talent Skill builder, Team Building
  • Supervision & Leadership

Timeline

Solution Architect

Radisys
10.2018 - Current

Technical Lead Engineer

Cisco
12.2015 - 10.2018

Technical Lead Engineer

Samsung R&D Bangalore
09.2013 - 08.2015

Senior Engineer

Tata Elxsi
11.2010 - 08.2013

Bachelor of Computer Science - Computer Science

VTU Belgum
Mohammed Mohseen Sagri