Overall, the process is not bad. Qualcomm will arrange everything for the interview. You do not need to worry about too much. The coding questions are easy, probably because Qualcomm is not a core CS company. Therefore, you do not need to spend too much time on coding issues. It might require some basic concepts in telecommunications, such as CDMA, FDMA, and RF. You should probably review your communications textbook again.
Nothing unexpected. Most questions can be found on this website.
The following metrics were computed from 259 interview experiences for the Qualcomm Software Engineer role in United States.
Qualcomm's interview process for their Software Engineer roles in the United States is very selective, failing most engineers who go through it.
Candidates reported having very good feelings for Qualcomm's Software Engineer interview process in United States.