On top of the what Shyam has described the following is the mapping and yes these three are the terms which describes three different stuff at different level.
If EPS bearer ID is = x +4 ;
DRB ID = x;
Logical Channel ID = x + 2;
NOTE : All these ranges is with respect to DRB establishment
EPS Bearer ID Range is INTEGER (0..15) (But 0-4 is reserved so we use starting from 5 )
DRB ID Range is INTEGER (1..32) (As in LTE max 8 DRB can be established per UE so we use from 1-8)
Logical Channel ID range for DRBs is INTEGER (3..10) ( For for DRB1 we use 3 as logical channed ID)