Job description

This position is focused on system integration and validation of our 5G-NR O-RAN RU platform.

Responsibilities include

• The candidate will define, develop, and execute test methodologies for validating end-to-end system level performance/functionality of 5G-NR gNodeB specifically across the DU-RU interface based on ORAN specifications.
• Prime responsibility will be system integration and test of L1-split on the O-RU, develop PHY Integration framework, process, and automation tools for functions implemented on SoC IP and verify CU-plane functionality, configuration setup as defined by ORAN specification.
• Additional responsibility includes integration and test of: ORAN FH, IOT profiles, conformance, DU-RU L1/L2 settings, L3 call validation with UE and analysis of system logs.
• Define test plan, execute tests, automate and trouble shoot O-RU under test with Keysight O-RAN emulation and DU to investigate/debug issues with L1 performance and perform detailed post-processing analysis.
• Assist RF verification team responsible for comprehensive validation of DFE and RF conformance testing of 5G-NR + O-RAN RU.
• Work closely with systems engineering, software/hardware developers and operations teams to clearly identify and rectify non-compliant issues.

Preferred Experience

• 5+ years in system integration and test with experience in modem PHY layer design / bring-up / integration / performance validation and productization either on base station or UE side.
• Strong knowledge of 3GPP 5G-NR / LTE / OFDMA air-interface protocol including PHY/MAC parameter optimization.
• Strong fundamentals in Wireless Communications and Digital Signal Processing with specific emphasis on Signal Detection and Estimation, Timing and Synchronization, Tx power control, channel estimation.
• Deep experience testing OFDM Physical layer blocks and procedures such as MIMO layer mapping, precoding, RE mapping, iFFT/FFT, CP, PRACH, sampling, filtering, fixed/floating point formats, link adaptation, L1-control.
• Familiarity and experience with O-RAN WG4 specifications, bring-up of ORAN / CPRI front-haul is a plus. Ability to build expertise, perform in-depth investigation into ORAN WG4 specifications and propose modifications or alterative solutions.Exposure to Keysight suite of radio testing, preferably Keysight O-RAN studio/Pathwave/Signal Studio.
• Experience operating test equipment including spectrum analyzers, signal generators, channel emulators, callboxes, and protocol testers etc.
• Strong background in Matlab / Python/ Shell scripting and use of toolboxes to generate and conduct customized PHY layer tests.
• Experience in modem architecture, microprocessor architecture, hardware, and software control.
• Knowledge of Qualcomm QXDM, QCAT, Wireshark is a plus.
• Ability to work in a small team and drive to go beyond expectations to deliver results.

Education
Master’s degree in Electrical Engineering with specialization in Wireless Communications is strongly preferred.

Job Type: Full-time

Benefits:

• 401(k)
• 401(k) matching
• Dental insurance
• Employee discount
• Flexible spending account
• Health insurance
• Health savings account
• Life insurance
• Paid time off
• Vision insurance

Compensation package:

• Performance bonus
• Yearly pay

Experience level:

• 5 years

Schedule:

• 8 hour shift

Ability to commute/relocate:

• New Providence, NJ 07974: Reliably commute or planning to relocate before starting work (Preferred)

Work Location: Hybrid remote in New Providence, NJ 07974

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