Very detail on fundamental knowledge of communication, signal processing. I was asked to write down equations and deduction on blackboard. Most asked questions based on projects on your resume, and extend to the whole system coverage. E.g., if you said you have work on AGC, you could be asked about LNA gain, SNRQ, ADC, quantization noise, DVGA, set point etc., and relations among them.

A technical phone interview with a list of questions to answer, then an onsite interview. The HR staff also called and asked questions before the onsite interview. The process from applying it online to getting an email requesting for phone interview took about one month. Two weeks after the onsite interview, received an email from HR saying that an offer was not given.