What are the link layer protocols for cellular networks?
There are several platforms for high speed cellular networks. From GSM, to GPRS, W-CDMA, HSPA, LTE, etc. I (mostly) know about the physical details of radio transmission from what I studied at grad school (BPSK, QPSK, MIMO, Fading, etc.), and also the software details at and above IP. But I have no idea, and I can't seem to find information on what are the specific data link protocols in cellular networks. (Instead of Ethernet, 802.11 and the like)
I'm specifically interested in knowing if and how packet loss due to fading and other artifacts is managed at the link layer, or if they simply don't care and let the transport layer to care about this.
I am asking this because I want to evaluate whether or not I can manage to do some countermeasures against packet loss at the transport layer (UDP) specifically tailored to cellular networks.
My question is: What are the data link protocols for cellular networks? This is merely the starting point to solve a much larger problem, which is outside of the scope of this particular question.
Looking at some japanese documents, there seem to be some protocols such as DPCCH/DPDCH for W-CDMA, but frankly, the information on these is very scarce (even the wikipedia pages are orphans at this moment). Are there any good resources to get started?
Notice that I am a complete newbie on this site. Please forgive me if this question is wrongly worded, is not appropriate or if it has problems. I want to learn and become a good member of this community, so please consider giving me constructive criticism if you're considering closing or downvoting this question. I take criticism very well, and it won't be a waste of your time.