RF & Channel Emulation Systems Engineer

Company:

Qualcomm Technologies, Inc.

Job Area:

Engineering Group, Engineering Group > Cellular Technologies

General Summary:

Systems engineers are at the heart of Qualcomm's success in wireless. For this position, we are looking for a  mixed-signal architecture wizard who works with software, RF/analog, and digital hardware engineers to design and validate the best RF and channel emulation architectures. You will be embedded in the Test Base Station (TBS) team. The TBS team currently provides solutions for verification of QCT chipset functionality of 5G NR and LTE with 6G in active development. Tasks performed by RF & Channel Emulation systems engineers on the TBS team include:

• Analyzing latest 3GPP and other specifications to derive requirements
• Translating requirements into analog/RF architecture, calibration, and analog/digital compensation
• Theoretical analysis and simulation of features, algorithms, and implementation choices
• Performing lab integration and subsequent analysis of RF and channel emulation features
• Presenting & documenting specifications, designs, and results to cross disciplinary and diverse teams and building consensus around solutions
• Supporting the implementation and commercialization of features by providing test vectors, logs, and analysis

All Qualcomm employees are expected to actively support diversity on their teams and in the Company.

Minimum Qualifications:

• Bachelor's degree in Computer Science, Engineering, Information Systems, or related field and 2+ years of Electrical Engineering, Hardware Engineering, Systems Engineering, or related work experience.
OR
Master's degree in Computer Science, Engineering, Information Systems, or related field and 1+ year of Electrical Engineering, Hardware Engineering, Systems Engineering, or related work experience.
OR
PhD in Computer Science, Engineering, Information Systems, or related field.

Graduate level classes, equivalent training or experience in:

• Probability and Random Processes.
• Digital Signal Processing.
• Wireless Channel Models and their Emulation.
• Statistical Signal Analysis or Signal Detection and Estimation.
• Digital Communications.
• RF systems design.
• Programming in C/C++, Matlab and Python.

Additional Skills:

• Ability to work on a diverse team and interact in a diverse and inter-disciplinary engineering organization.
• Strong communication skills, including both written and oral skills.
• Knowledge of 5G NR and LTE physical layer specifications.
• Knowledge of mixed-signal RF systems components such as ADC, DAC, digital and analog filters, mixed signal, PA, LNA, RF calibration, digital and analog compensation methods.
• Knowledge of analog/RF impairments such as IQ mismatch, intermodulation, unwanted spurious sources, signal compression, noise figure, phase noise, and characterization.
• Knowledge of fading channel models (Jakes and cluster-based) and deterministic models for high-speed train scenarios.
• Knowledge of OFDMA and SC-FDMA
• Experience with RF interfaces and digital mitigation of RF distortion.
• Masters or Doctorate in Electrical Engineering.

Level of Responsibility:  
•    Works under supervision.   
•    Decision-making may affect work beyond immediate work group.
•    Requires verbal and written communication skills to convey information. May require basic negotiation, influence, tact, etc. 
•    Has a moderate amount of influence over key organizational decisions.
•    Tasks require multiple steps which can be performed in various orders; some planning, problem-solving, and prioritization must occur to complete the tasks effectively.