Implemented estimated C/I algorithm for link adaptation.

Description of algorithm:
1. Start with initial coding scheme.
2. Transmit RLC blocks until the end of the reporting window (Packet Downlink Ack/Nack message is received)
3. Estimate the average C/I for the previous reporting window and change CS, if it is necessary.
4. If there is more data to transmit return to step 2.
Added configuration options to enable/disable link adaptation and setting maximum C/I level for CS1, CS2, CS3, CS4.
8 files changed