TELCOMA Certified 5G RAN Specialist

What's assessed

7 domains, 49 questions in total — drawn from the course lessons.

• NR Air Interface: Structure

  7 questions

  Reading the NR resource grid: numerologies and subcarrier spacing, frames, slots and the time-frequency grid, bandwidth parts as the radio's gearbox, and how real TDD patterns share it.

• NR Access, Channels & the Stack

  7 questions

  A UE from cell search to a packet down the stack — SSB, the four-step RACH handshake, where PDCCH, PDSCH, PUCCH and PUSCH ride, link adaptation and HARQ, DMRS/CSI-RS/SRS, and the MAC/RLC/PDCP/SDAP journey.

• Massive MIMO & Beamforming

  7 questions

  How antennas became 5G's biggest lever: where array gain comes from, digital versus analog versus hybrid beamforming, beam management by sweep-refine-track, and MU-MIMO serving many users on the same resources.

• RAN Architecture & Splits

  7 questions

  Justifying a CU/DU/RU design and its transport budget — where the split sits, the F1, E1 and Xn interfaces that wire it together, eCPRI fronthaul and its latency budget, and vRAN as software.

• Open RAN

  7 questions

  The O-RAN architecture assessed like an operator: the case for open interfaces, the architecture map, the RIC with xApps and rApps as two control loops, and open fronthaul in the field.

• Mobility & Radio Procedures

  7 questions

  Running a handover in your head: A3 events, hysteresis and time-to-trigger, Xn and N2 handover step by step, carrier aggregation, dual connectivity and EN-DC, and paging, DRX and battery life.

• RAN Planning & Performance

  7 questions

  Turning coverage, capacity and quality into numbers — RSRP, RSRQ and SINR alongside accessibility, retainability and energy; link budgets; capacity dimensioning; and planning a private 5G RAN.