APPARATUS AND METHODS FOR TESTING USING MODULATION ERROR RATIO

摘要

Apparatus and methods are disclosed for testing or qualifying a repeater/transmitter in a multicarrier system by utilizing modulation error ratio (MER). In particular, a disclosed method includes determining an estimated effective modulation error ratio of an output of the repeater/transmitter. The estimated effective modulation error ratio is compared with a predetermined threshold, and the repeater/transmitter is qualified when the estimated effective modulation error ratio is greater than the predetermined threshold. Using an estimated modulation error ratio for repeater/transmitters, which can have non-flat modulation error ratios over a total number of subcarriers, affords an efficient method to test and qualify repeater/transmitters.