Mentor-DSP offers lots of learning resource in the form of video demonstrations, tutorials, laboratory manual, exercises, articles, etc. You can download them all from here.

Getting License
MentorDSP Setup - 1.0.1
 
Coming Soon
 

Mentor-DSP Brochure
MentorDSP Presentation 1.0
Lab Manual - Sample 2 Chapters
 
Frequency Manipulation
Introduction to GSM
Introduction to 4G
Introduction to HSPA
Introduction to UMTS