What is CACLR (Cumulative Adjacent Channel Leakage Ratio)?

ACLR is the Adjacent channel leakage ratio is the ratio of the filtered mean power centred on the assigned channel frequency to the filtered mean power centred on an adjacent channel frequency. CACLR in a sub-block gap or the inter RF bandwidth gap is the ratio of the sum of the filtered mean power centred on the assigned channel frequencies for the two carriers adjacent to each side of the sub-block gap or the inter bandwidth gap.