CC2652R7: MIN_LQI_COST values question

// LQI to Cost mapping
#define MIN_LQI_COST_1 12 //24
#define MIN_LQI_COST_2 9 //20
#define MIN_LQI_COST_3 6 //16
#define MIN_LQI_COST_4 4 //12
#define MIN_LQI_COST_5 2 //8
#define MIN_LQI_COST_6 1 //4
#define MIN_LQI_COST_7 0 //0

#define MIN_LQI_COST_1                64  //192
#define MIN_LQI_COST_2                32  //128
#define MIN_LQI_COST_3                16  //96
#define MIN_LQI_COST_4                12  //64
#define MIN_LQI_COST_5                8   //32
#define MIN_LQI_COST_6                4   //16
#define MIN_LQI_COST_7                1   //1
#define MIN_LQI_COST_0                0   //0