The profile was for Software Development within a 4G System Design Engineering team. The interview began with an initial telephonic conversation, lasting approximately one hour. This discussion focused on my resume, questions about undertaken project activities, communication engineering basics (OFDM, Spreading, Correlation, etc.), and some questions on fixed-point implementation.

At the end of the call, I was provided with details on the job description and asked about my availability for a face-to-face interview.

There were five rounds of interviews during the face-to-face stage, including one HR round. The questions were primarily on wireless/digital communication fundamentals, with a few C coding questions (on bit reversal, generating masks, fixed-point implementation, etc.). I was also asked about my preferred work profile from multiple options.

Ultimately, based on my performance during the interviews, the offer was confirmed.

What is an open-loop and closed-loop MIMO system?